Commit Graph

2552 Commits

Author SHA1 Message Date
Ralf Thielow
9927ebed19 fmt-merge-msg: respect core.commentchar in people credits
Commit eff80a9 (Allow custom "comment char") introduced a custom
comment character for commit messages but forgot to use it in
people credits which can be a part of a commit message.

With this commit, the custom comment character is also used
in people credits.

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 09:28:29 -07:00
Antoine Pelisse
c4458ecdc5 fast-export: Allow pruned-references in mark file
fast-export can fail because of some pruned-reference when importing a
mark file.

The problem happens in the following scenario:

    $ git fast-export --export-marks=MARKS master
    (rewrite master)
    $ git prune
    $ git fast-export --import-marks=MARKS master

This might fail if some references have been removed by prune
because some marks will refer to no longer existing commits.
git-fast-export will not need these objects anyway as they were no
longer reachable.

We still need to update last_numid so we don't change the mapping
between marks and objects for remote-helpers.
Unfortunately, the mark file should not be rewritten without lost marks
if no new objects has been exported, as we could lose track of the last
last_numid.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Reviewed-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-07 00:40:23 -07:00
Jeff King
aaa07e3eee show-branch: use strbuf instead of static buffer
When we generate relative names (e.g., "master~20^2"), we
format the name into a static buffer, then xstrdup the
result to attach it to the commit. Since the first thing we
add into the static buffer is the already-computed name of
the child commit, the names may get longer and longer as
the traversal gets deeper, and we may eventually overflow
the fixed-size buffer.

Fix this by converting the fixed-size buffer into a dynamic
strbuf.  The performance implications should be minimal, as
we end up allocating a heap copy of the name anyway (and now
we can just detach the heap copy from the strbuf).

Reported-by: Eric Roman <eroman@chromium.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-06 18:57:15 -07:00
Junio C Hamano
d5fec92a7a Merge branch 'sg/gpg-sig'
Teach "merge/pull" to optionally verify and reject commits that are
not signed properly.

* sg/gpg-sig:
  pretty printing: extend %G? to include 'N' and 'U'
  merge/pull Check for untrusted good GPG signatures
  merge/pull: verify GPG signatures of commits being merged
  commit.c/GPG signature verification: Also look at the first GPG status line
  Move commit GPG signature verification to commit.c
2013-04-05 14:15:16 -07:00
Junio C Hamano
e636241fdb Merge branch 'jc/merge-tag-object'
"git merge $(git rev-parse v1.8.2)" behaved quite differently from
"git merge v1.8.2" as if v1.8.2 were written as v1.8.2^0 and did
not pay much attention to the annotated tag payload.

This makes the code notice the type of the tag object, in addition
to the dwim_ref() based classification the current code uses
(i.e. the name appears in refs/tags/) to decide when to special
case merging of tags.

* jc/merge-tag-object:
  t6200: test message for merging of an annotated tag
  t6200: use test_config/test_unconfig
  merge: a random object may not necssarily be a commit
2013-04-05 14:14:41 -07:00
Junio C Hamano
f4df84de62 Merge branch 'nd/index-pack-threaded-fixes' into maint
* nd/index-pack-threaded-fixes:
  index-pack: guard nr_resolved_deltas reads by lock
  index-pack: protect deepest_delta in multithread code
2013-04-04 13:00:41 -07:00
Junio C Hamano
68447f04f4 Merge branch 'jk/index-pack-correct-depth-fix' into maint
* jk/index-pack-correct-depth-fix:
  index-pack: always zero-initialize object_entry list
2013-04-04 13:00:37 -07:00
Jeff King
9a6728d4d1 rm: do not complain about d/f conflicts during deletion
If we used to have an index entry "d/f", but "d" has been
replaced by a non-directory entry, the user may still want
to run "git rm" to delete the stale index entry. They could
use "git rm --cached" to just touch the index, but "git rm"
should also work: we explicitly try to handle the case that
the file has already been removed from the working tree.

However, because unlinking "d/f" in this case will not yield
ENOENT, but rather ENOTDIR, we do not notice that the file
is already gone. Instead, we report it as an error.

The simple solution is to treat ENOTDIR in this case exactly
like ENOENT; all we want to know is whether the file is
already gone, and if a leading path is no longer a
directory, then by definition the sub-path is gone.

Reported-by: jpinheiro <7jpinheiro@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-04 12:28:47 -07:00
Jonathan Nieder
9df84e94ed add -A: only show pathless 'add -A' warning when changes exist outside cwd
In the spirit of the recent similar change for 'git add -u', avoid
pestering users that restrict their attention to a subdirectory and
will not be affected by the coming change in the behavior of pathless
'git add -A'.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Jonathan Nieder
71c7b0538f add -u: only show pathless 'add -u' warning when changes exist outside cwd
A common workflow in large projects is to chdir into a subdirectory of
interest and only do work there:

	cd src
	vi foo.c
	make test
	git add -u
	git commit

The upcoming change to 'git add -u' behavior would not affect such a
workflow: when the only changes present are in the current directory,
'git add -u' will add all changes, and whether that happens via an
implicit "." or implicit ":/" parameter is an unimportant
implementation detail.

The warning about use of 'git add -u' with no pathspec is annoying
because it seemingly serves no purpose in this case.  So suppress the
warning unless there are changes outside the cwd that are not being
added.

A previous version of this patch ran two I/O-intensive diff-files
passes: one to find changes outside the cwd, and another to find
changes to add to the index within the cwd.  This version runs one
full-tree diff and decides for each change whether to add it or warn
and suppress it in update_callback.  As a result, even on very large
repositories "git add -u" will not be significantly slower than the
future default behavior ("git add -u :/"), and the slowdown relative
to "git add -u ." should be a useful clue to users of such
repositories to get into the habit of explicitly passing '.'.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Jonathan Nieder
16d41d4218 add: make warn_pathless_add() a no-op after first call
Make warn_pathless_add() print its warning the first time it is called
and do nothing if called again.  This will make it easier to show the
warning on the fly when a relevant condition is detected without
risking showing it multiple times when multiple such conditions hold.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:22 -07:00
Matthieu Moy
c9f35b8b50 add: add a blank line at the end of pathless 'add [-u|-A]' warning
When the commands give an actual output (e.g. when ran with -v), the
output is visually mixed with the warning.

An additional blank line makes the actual output more visible.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-03 11:34:18 -07:00
Junio C Hamano
8054b9a615 Merge branch 'jm/branch-rename-nothing-error'
"git branch -m" without any argument noticed an error, but with an
incorrect error message.

* jm/branch-rename-nothing-error:
  branch: give better message when no names specified for rename
2013-04-03 09:34:40 -07:00
Junio C Hamano
b9c78e9723 Merge branch 'jk/check-corrupt-objects-carefully'
Have the streaming interface and other codepaths more carefully
examine for corrupt objects.

* jk/check-corrupt-objects-carefully:
  clone: leave repo in place after checkout errors
  clone: run check_everything_connected
  clone: die on errors from unpack_trees
  add tests for cloning corrupted repositories
  streaming_write_entry: propagate streaming errors
  add test for streaming corrupt blobs
  avoid infinite loop in read_istream_loose
  read_istream_filtered: propagate read error from upstream
  check_sha1_signature: check return value from read_istream
  stream_blob_to_fd: detect errors reading from stream
2013-04-03 09:34:29 -07:00
Junio C Hamano
a70f4cb5b0 Merge branch 'jc/apply-ws-fix-tab-in-indent'
"git apply --whitespace=fix" was not prepared to see a line getting
longer after fixing whitespaces (e.g. tab-in-indent aka Python).

* jc/apply-ws-fix-tab-in-indent:
  test: resurrect q_to_tab
  apply --whitespace=fix: avoid running over the postimage buffer
2013-04-03 09:34:22 -07:00
Junio C Hamano
97fefaf6d3 Merge branch 'nd/checkout-paths-reduce-match-pathspec-calls'
Consolidate repeated pathspec matches on the same paths, while
fixing a bug in "git checkout dir/" code started from an unmerged
index.

* nd/checkout-paths-reduce-match-pathspec-calls:
  checkout: avoid unnecessary match_pathspec calls
2013-04-03 09:34:00 -07:00
Junio C Hamano
b771d8d7cf Merge branch 'mg/gpg-interface-using-status' into maint
Verification of signed tags were not done correctly when not in C
or en/US locale.

* mg/gpg-interface-using-status:
  pretty: make %GK output the signing key for signed commits
  pretty: parse the gpg status lines rather than the output
  gpg_interface: allow to request status return
  log-tree: rely upon the check in the gpg_interface
  gpg-interface: check good signature in a reliable way
2013-04-03 09:26:27 -07:00
Junio C Hamano
14c79b1faa Merge branch 'bc/commit-complete-lines-given-via-m-option' into maint
'git commit -m "$msg"' used to add an extra newline even when
$msg already ended with one.

* bc/commit-complete-lines-given-via-m-option:
  Documentation/git-commit.txt: rework the --cleanup section
  git-commit: only append a newline to -m mesg if necessary
  t7502: demonstrate breakage with a commit message with trailing newlines
  t/t7502: compare entire commit message with what was expected
2013-04-03 09:26:07 -07:00
Junio C Hamano
295e3938fc Merge branch 'jc/describe' into maint
The "--match=<pattern>" option of "git describe", when used with
"--all" to allow refs that are not annotated tags to be used as a
base of description, did not restrict the output from the command to
those that match the given pattern.

* jc/describe:
  describe: --match=<pattern> must limit the refs even when used with --all
2013-04-03 09:25:52 -07:00
Junio C Hamano
9e72a56699 Merge branch 'ph/tag-force-no-warn-on-creation' into maint
"git tag -f <tag>" always said "Updated tag '<tag>'" even when
creating a new tag (i.e. not overwriting nor updating).

* ph/tag-force-no-warn-on-creation:
  tag: --force does not have to warn when creating tags
2013-04-03 09:24:51 -07:00
Junio C Hamano
92e0d91632 Sync with 1.8.1 maintenance track
* maint-1.8.1:
  Start preparing for 1.8.1.6
  git-tag(1): we tag HEAD by default
  Fix revision walk for commits with the same dates
  t2003: work around path mangling issue on Windows
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
  entry: fix filter lookup
  t2003: modernize style
  name-hash.c: fix endless loop with core.ignorecase=true
2013-04-03 09:18:01 -07:00
Junio C Hamano
f1ad05f3a5 Merge branch 'jk/fully-peeled-packed-ref' into maint-1.8.1
* jk/fully-peeled-packed-ref:
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
2013-04-03 08:43:03 -07:00
Junio C Hamano
357d7f11ba Merge branch 'ap/maint-update-index-h-is-for-help' into maint-1.8.1
* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-04-03 08:36:10 -07:00
Junio C Hamano
f4254d1fb2 Merge branch 'nd/index-pack-l10n-buf-overflow' into maint-1.8.1
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-04-03 08:35:06 -07:00
Philip Oakley
002b726a40 builtin/help.c: add list_common_guides_help() function
This implements what "help -g" introduced in the previous step does.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 18:09:30 -07:00
Philip Oakley
65f98358c0 builtin/help.c: add --guide option
Logic, but no actions, included.

The --all commands option, if given, will display the list of
available commands.

The --guide option's list of guides will then be displayed.

The common commands list is only displayed if neither option, nor a
command or guide name, is given.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 18:01:31 -07:00
Philip Oakley
15f7d49438 builtin/help.c: split "-a" processing into two
"help -a" (help all) gives the list of available commands and then
further gives hints on the use of "git help".   Separate these into
two steps, because we will add "help -g" (help guides) that want to
also show the overall hints after it is done.

While at it, change the definition of the "-a" option to use OPT_BOOL,
not the deprecated OPT_BOOLEAN.  We do not behave differently when
the user gives the "-a" option multiple times, e.g. "git help -a -a".

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 17:58:24 -07:00
Junio C Hamano
68ef16b848 Merge branch 'js/log-gpg'
Teach "show/log" honor gpg.program configuration just like other
parts of the code that use GnuPG.

* js/log-gpg:
  log: read gpg settings for signed commit verification
2013-04-02 15:10:49 -07:00
Junio C Hamano
c5f05b2356 Merge branch 'bk/document-commit-tree-S'
* bk/document-commit-tree-S:
  commit-tree: document -S option consistently
2013-04-02 15:09:43 -07:00
Ramkumar Ramachandra
f24f715e05 remote.c: introduce a way to have different remotes for fetch/push
Currently, do_push() in push.c calls remote_get(), which gets the
configured remote for fetching and pushing.  Replace this call with a
call to pushremote_get() instead, a new function that will return the
remote configured specifically for pushing.  This function tries to
work with the string pushremote_name, before falling back to the
codepath of remote_get().  This patch has no visible impact, but
serves to enable future patches to introduce configuration variables
to set pushremote_name.  For example, you can now do the following in
handle_config():

    if (!strcmp(key, "remote.pushdefault"))
       git_config_string(&pushremote_name, key, value);

Then, pushes will automatically go to the remote specified by
remote.pushdefault.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-02 10:41:42 -07:00
Junio C Hamano
1d066c58ee Merge branch 'nd/index-pack-threaded-fixes'
"index-pack --verify-stat" used a few counters outside protection
of mutex, possibly showing incorrect numbers.

* nd/index-pack-threaded-fixes:
  index-pack: guard nr_resolved_deltas reads by lock
  index-pack: protect deepest_delta in multithread code
2013-04-01 09:06:23 -07:00
Junio C Hamano
ed8852c286 Merge branch 'jk/index-pack-correct-depth-fix'
"index-pack --fix-thin" used uninitialize value to compute delta
depths of objects it appends to the resulting pack.

* jk/index-pack-correct-depth-fix:
  index-pack: always zero-initialize object_entry list
2013-04-01 09:06:19 -07:00
Junio C Hamano
afc2e81247 Merge branch 'nd/branch-show-rebase-bisect-state'
Add a bit more information to "git status" during a rebase/bisect
session.

* nd/branch-show-rebase-bisect-state:
  status, branch: fix the misleading "bisecting" message
  branch: show more information when HEAD is detached
  status: show more info than "currently not on any branch"
  wt-status: move wt_status_get_state() out to wt_status_print()
  wt-status: split wt_status_state parsing function out
  wt-status: move strbuf into read_and_strip_branch()
2013-04-01 09:05:45 -07:00
Junio C Hamano
e013bdab0f Merge branch 'jk/pkt-line-cleanup'
Clean up pkt-line API, implementation and its callers to make them
more robust.

* jk/pkt-line-cleanup:
  do not use GIT_TRACE_PACKET=3 in tests
  remote-curl: always parse incoming refs
  remote-curl: move ref-parsing code up in file
  remote-curl: pass buffer straight to get_remote_heads
  teach get_remote_heads to read from a memory buffer
  pkt-line: share buffer/descriptor reading implementation
  pkt-line: provide a LARGE_PACKET_MAX static buffer
  pkt-line: move LARGE_PACKET_MAX definition from sideband
  pkt-line: teach packet_read_line to chomp newlines
  pkt-line: provide a generic reading function with options
  pkt-line: drop safe_write function
  pkt-line: move a misplaced comment
  write_or_die: raise SIGPIPE when we get EPIPE
  upload-archive: use argv_array to store client arguments
  upload-archive: do not copy repo name
  send-pack: prefer prefixcmp over memcmp in receive_status
  fetch-pack: fix out-of-bounds buffer offset in get_ack
  upload-pack: remove packet debugging harness
  upload-pack: do not add duplicate objects to shallow list
  upload-pack: use get_sha1_hex to parse "shallow" lines
2013-04-01 08:59:37 -07:00
Junio C Hamano
900c8ecb5c Merge branch 'bc/append-signed-off-by'
Consolidate codepaths that inspect log-message-to-be and decide to
add a new Signed-off-by line in various commands.

* bc/append-signed-off-by:
  git-commit: populate the edit buffer with 2 blank lines before s-o-b
  Unify appending signoff in format-patch, commit and sequencer
  format-patch: update append_signoff prototype
  t4014: more tests about appending s-o-b lines
  sequencer.c: teach append_signoff to avoid adding a duplicate newline
  sequencer.c: teach append_signoff how to detect duplicate s-o-b
  sequencer.c: always separate "(cherry picked from" from commit body
  sequencer.c: require a conforming footer to be preceded by a blank line
  sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
  t/t3511: add some tests of 'cherry-pick -s' functionality
  t/test-lib-functions.sh: allow to specify the tag name to test_commit
  commit, cherry-pick -s: remove broken support for multiline rfc2822 fields
  sequencer.c: rework search for start of footer to improve clarity
2013-04-01 08:59:24 -07:00
Sebastian Götte
eb307ae7bb merge/pull Check for untrusted good GPG signatures
When --verify-signatures is specified, abort the merge in case a good
GPG signature from an untrusted key is encountered.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 22:38:49 -07:00
Jonathon Mah
d1520c4b1a branch: give better message when no names specified for rename
Signed-off-by: Jonathon Mah <me@JonathonMah.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 19:58:02 -07:00
Junio C Hamano
a32a0c29df Merge branch 'maint'
* maint:
  cat-file: Fix an gcc -Wuninitialized warning
  fast-import: Fix an gcc -Wuninitialized warning
2013-03-31 19:27:54 -07:00
Sebastian Götte
efed002249 merge/pull: verify GPG signatures of commits being merged
When --verify-signatures is specified on the command-line of git-merge
or git-pull, check whether the commits being merged have good gpg
signatures and abort the merge in case they do not. This allows e.g.
auto-deployment from untrusted repo hosts.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 19:23:59 -07:00
Ramsay Jones
803a777942 cat-file: Fix an gcc -Wuninitialized warning
After commit cbfd5e1c ("drop some obsolete "x = x" compiler warning
hacks", 21-03-2013) removed a gcc specific hack, older versions of
gcc now issue an "'contents' might be used uninitialized" warning.
In order to suppress the warning, we simply initialize the variable
to NULL in it's declaration.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-29 23:47:00 -07:00
Jeff King
d3b34622f6 clone: leave repo in place after checkout errors
If we manage to clone a remote repository but run into an
error in the checkout, it is probably sane to leave the repo
directory in place. That lets the user examine the situation
without spending time to re-clone from the remote (which may
be a lengthy process).

Rather than try to convert each die() from the checkout code
path into an error(), we simply set a flag that tells the
"remove_junk" atexit function to print a helpful message and
leave the repo in place.

Note that the test added in this patch actually passes
without the code change. The reason is that the cleanup code
is buggy; we chdir into the working tree for the checkout,
but still may use relative paths to remove the directories
(which means if you cloned into "foo", we would accidentally
remove "foo" from the working tree!).  There's no point in
fixing it now, since this patch means we will never try to
remove anything after the chdir, anyway.

[jc: replaced the message with a more succinct version from
Jonathan]

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-29 15:20:55 -07:00
Thomas Rast
13b8f68c1f log -L: :pattern:file syntax to find by funcname
This new syntax finds a funcname matching /pattern/, and then takes from there
up to (but not including) the next funcname.  So you can say

  git log -L:main:main.c

and it will dig up the main() function and show its line-log, provided
there are no other funcnames matching 'main'.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:30:04 -07:00
Thomas Rast
12da1d1f6f Implement line-history search (git log -L)
This is a rewrite of much of Bo's work, mainly in an effort to split
it into smaller, easier to understand routines.

The algorithm is built around the struct range_set, which encodes a
series of line ranges as intervals [a,b).  This is used in two
contexts:

* A set of lines we are tracking (which will change as we dig through
  history).
* To encode diffs, as pairs of ranges.

The main routine is range_set_map_across_diff().  It processes the
diff between a commit C and some parent P.  It determines which diff
hunks are relevant to the ranges tracked in C, and computes the new
ranges for P.

The algorithm is then simply to process history in topological order
from newest to oldest, computing ranges and (partial) diffs.  At
branch points, we need to merge the ranges we are watching.  We will
find that many commits do not affect the chosen ranges, and mark them
TREESAME (in addition to those already filtered by pathspec limiting).
Another pass of history simplification then gets rid of such commits.

This is wired as an extra filtering pass in the log machinery.  This
currently only reduces code duplication, but should allow for other
simplifications and options to be used.

Finally, we hook a diff printer into the output chain.  Ideally we
would wire directly into the diff logic, to optionally use features
like word diff.  However, that will require some major reworking of
the diff chain, so we completely replace the output with our own diff
for now.

As this was a GSoC project, and has quite some history by now, many
people have helped.  In no particular order, thanks go to

  Jakub Narebski <jnareb@gmail.com>
  Jens Lehmann <Jens.Lehmann@web.de>
  Jonathan Nieder <jrnieder@gmail.com>
  Junio C Hamano <gitster@pobox.com>
  Ramsay Jones <ramsay@ramsay1.demon.co.uk>
  Will Palmer <wmpalmer@gmail.com>

Apologies to everyone I forgot.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:29:22 -07:00
Bo Yang
25ed3412f8 Refactor parse_loc
We want to use the same style of -L n,m argument for 'git log -L' as
for git-blame.  Refactor the argument parsing of the range arguments
from builtin/blame.c to the (new) file that will hold the 'git log -L'
logic.

To accommodate different data structures in blame and log -L, the file
contents are abstracted away; parse_range_arg takes a callback that it
uses to get the contents of a line of the (notional) file.

The new test is for a case that made me pause during debugging: the
'blame -L with invalid end' test was the only one that noticed an
outright failure to parse the end *at all*.  So make a more explicit
test for that.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-28 10:28:41 -07:00
Jacob Sarvis
6005dbb9bf log: read gpg settings for signed commit verification
"show --show-signature" and "log --show-signature" do not read the
gpg.program setting from git config, even though, commit signing,
tag signing, and tag verification honor it.

Signed-off-by: Jacob Sarvis <jsarvis@openspan.com>
Signed-off-by: Hans Brigman <hbrigman@openspan.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:57:12 -07:00
Jeff King
0433ad128c clone: run check_everything_connected
When we fetch from a remote, we do a revision walk to make
sure that what we received is connected to our existing
history. We do not do the same check for clone, which should
be able to check that we received an intact history graph.

The upside of this patch is that it will make clone more
resilient against propagating repository corruption. The
downside is that we will now traverse "rev-list --objects
--all" down to the roots, which may take some time (it is
especially noticeable for a "--local --bare" clone).

Note that we need to adjust t5710, which tries to make such
a bogus clone. Rather than checking after the fact that our
clone is bogus, we can simplify it to just make sure "git
clone" reports failure.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:47:18 -07:00
Jeff King
0aac7bb287 clone: die on errors from unpack_trees
When clone is populating the working tree, it ignores the
return status from unpack_trees; this means we may report a
successful clone, even when the checkout fails.

When checkout fails, we may want to leave the $GIT_DIR in
place, as it might be possible to recover the data through
further use of "git checkout" (e.g., if the checkout failed
due to a transient error, disk full, etc). However, we
already die on a number of other checkout-related errors, so
this patch follows that pattern.

In addition to marking a now-passing test, we need to adjust
t5710, which blindly assumed it could make bogus clones of
very deep alternates hierarchies. By using "--bare", we can
avoid it actually touching any objects.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 13:47:15 -07:00
Junio C Hamano
8617715cc0 Merge branch 'maint'
* maint:
  More fixes for 1.8.2.1
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)
2013-03-27 10:58:07 -07:00
Junio C Hamano
d011ab4312 Merge branch 'maint-1.8.1' into maint
* maint-1.8.1:
  merge-tree: fix typo in merge-tree.c::unresolved
  git-commit doc: describe use of multiple `-m` options
  git-pull doc: fix grammo ("conflicts" is plural)
2013-03-27 10:51:10 -07:00
John Keeping
187c00c6c5 merge-tree: fix typo in merge-tree.c::unresolved
When calculating whether there is a d/f conflict, the calculation of
whether both sides are directories generates an incorrect references
mask because it does not use the loop index to set the correct bit.
Fix this typo.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 10:00:50 -07:00
Nguyễn Thái Ngọc Duy
e721c1544f checkout: avoid unnecessary match_pathspec calls
In checkout_paths() we do this

 - for all updated items, call match_pathspec
 - for all items, call match_pathspec (inside unmerge_cache)
 - for all items, call match_pathspec (for showing "path .. is unmerged)
 - for updated items, call match_pathspec and update paths

That's a lot of duplicate match_pathspec(s) and the function is not
exactly cheap to be called so many times, especially on large indexes.
This patch makes it call match_pathspec once per updated index entry,
save the result in ce_flags and reuse the results in the following
loops.

The changes in 0a1283b (checkout $tree $path: do not clobber local
changes in $path not in $tree - 2011-09-30) limit the affected paths
to ones we read from $tree. We do not do anything to other modified
entries in this case, so the "for all items" above could be modified
to "for all updated items". But..

The command's behavior now is modified slightly: unmerged entries that
match $path, but not updated by $tree, are now NOT touched.  Although
this should be considered a bug fix, not a regression. A new test is
added for this change.

And while at there, free ps_matched after use.

The following command is tested on webkit, 215k entries. The pattern
is chosen mainly to make match_pathspec sweat:

git checkout -- "*[a-zA-Z]*[a-zA-Z]*[a-zA-Z]*"

        before      after
real    0m3.493s    0m2.737s
user    0m2.239s    0m1.586s
sys     0m1.252s    0m1.151s

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-27 08:53:15 -07:00
Junio C Hamano
ece12fd844 Merge branch 'jk/mailsplit-maildir-muttsort' into maint
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.

* jk/mailsplit-maildir-muttsort:
  mailsplit: sort maildir filenames more cleverly
2013-03-26 12:44:11 -07:00
Junio C Hamano
307d68e275 Merge branch 'nd/branch-error-cases' into maint
"git branch" had more cases where it did not bother to check
nonsense command line parameters.

* nd/branch-error-cases:
  branch: segfault fixes and validation
2013-03-26 12:43:05 -07:00
Junio C Hamano
6201eb3e65 Merge branch 'ap/maint-update-index-h-is-for-help' into maint
"git update-index -h" did not do the usual "-h(elp)" thing.

* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-03-26 12:42:42 -07:00
Junio C Hamano
4bb2121c17 Merge branch 'nd/index-pack-l10n-buf-overflow' into maint
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-03-26 12:40:19 -07:00
Junio C Hamano
c17866d7b6 Merge branch 'gp/avoid-explicit-mention-of-dot-git-refs' into maint
* gp/avoid-explicit-mention-of-dot-git-refs:
  Fix ".git/refs" stragglers
2013-03-26 12:40:04 -07:00
Junio C Hamano
1d66383579 Merge branch 'jc/maint-reflog-expire-clean-mark-typofix' into maint
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.

* jc/maint-reflog-expire-clean-mark-typofix:
  reflog: fix typo in "reflog expire" clean-up codepath
2013-03-26 12:39:51 -07:00
Brad King
df45cb3ea3 commit-tree: document -S option consistently
Commit ba3c69a9 (commit: teach --gpg-sign option, 2011-10-05) added the
-S option but documented it in the command usage without indicating that
the value is optional and forgot to mention it in the manpage.  Later
commit 098bbdc3 (Add -S, --gpg-sign option to manpage of "git commit",
2012-10-21) documented the option in the porcelain manpage.

Use wording from the porcelain manpage to document the option in the
plumbing manpage.  Also update the commit-tree usage summary to indicate
that the -S value is optional to be consistent with the manpage and with
the implementation.

Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-25 15:01:22 -07:00
Junio C Hamano
870987dec7 Merge branch 'jk/fully-peeled-packed-ref'
Not that we do not actively encourage having annotated tags outside
refs/tags/ hierarchy, but they were not advertised correctly to the
ls-remote and fetch with recent version of Git.

* jk/fully-peeled-packed-ref:
  pack-refs: add fully-peeled trait
  pack-refs: write peeled entry for non-tags
  use parse_object_or_die instead of die("bad object")
  avoid segfaults on parse_object failure
2013-03-25 14:01:07 -07:00
Junio C Hamano
4e38e9b1d0 Merge branch 'jk/fast-export-object-lookup'
* jk/fast-export-object-lookup:
  fast-export: do not load blob objects twice
  fast-export: rename handle_object function
2013-03-25 14:01:05 -07:00
Junio C Hamano
33c1506d62 Merge branch 'ph/tag-force-no-warn-on-creation'
"git tag -f <tag>" always said "Updated tag '<tag>'" even when
creating a new tag (i.e. not overwriting nor updating).

* ph/tag-force-no-warn-on-creation:
  tag: --force does not have to warn when creating tags
2013-03-25 14:00:58 -07:00
Junio C Hamano
55f6fbef3d Merge branch 'jc/push-follow-tag'
The new "--follow-tags" option tells "git push" to push relevant
annotated tags when pushing branches out.

* jc/push-follow-tag:
  push: --follow-tags
  commit.c: use clear_commit_marks_many() in in_merge_bases_many()
  commit.c: add in_merge_bases_many()
  commit.c: add clear_commit_marks_many()
2013-03-25 14:00:41 -07:00
Junio C Hamano
212ca64fb4 Merge branch 'jc/maint-reflog-expire-clean-mark-typofix'
In "git reflog expire", REACHABLE bit was not cleared from the
correct objects.

* jc/maint-reflog-expire-clean-mark-typofix:
  reflog: fix typo in "reflog expire" clean-up codepath
2013-03-25 14:00:39 -07:00
Junio C Hamano
4744b33705 Merge branch 'jc/describe'
The "--match=<pattern>" option of "git describe", when used with
"--all" to allow refs that are not annotated tags to be used as a
base of description, did not restrict the output from the command
to those that match the given pattern.

We may want to have a looser matching that does not restrict to tags,
but that can be done as a follow-up topic; this step is purely a bugfix.

* jc/describe:
  describe: --match=<pattern> must limit the refs even when used with --all
2013-03-25 14:00:24 -07:00
Nguyễn Thái Ngọc Duy
6deab24d88 status, branch: fix the misleading "bisecting" message
The current message is "bisecting %s" (or "bisecting branch %s").
"%s" is the current branch when we started bisecting. Clarify that to
avoid confusion with good and bad refs passed to "bisect" command.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-23 22:29:15 -07:00
Junio C Hamano
250b3c6c99 apply --whitespace=fix: avoid running over the postimage buffer
Originally update-pre-post-images could assume that any whitespace
fixing will make the result only shorter by unexpanding runs of
leading SPs into HTs and removing trailing whitespaces at the end of
lines.  Updating the post-image we read from the patch to match the
actual result can be performed in-place under this assumption.
These days, however, we have tab-in-indent (aka Python) rule whose
result can be longer than the original, and we do need to allocate
a larger buffer than the input and replace the result.

Fortunately the support for lengthening rewrite was already added
when we began supporting "match while ignoring whitespace
differences" mode in 86c91f9179 (git apply: option to ignore
whitespace differences, 2009-08-04).  We only need to correctly
count the number of bytes necessary to hold the updated result and
tell the function to allocate a new buffer.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-22 11:16:01 -07:00
Junio C Hamano
328455fc58 Merge branch 'maint'
* maint:
  diff.c: diff.renamelimit => diff.renameLimit in message
  wt-status: fix possible use of uninitialized variable
  fast-import: clarify "inline" logic in file_change_m
  run-command: always set failed_errno in start_command
  transport: drop "int cmp = cmp" hack
  drop some obsolete "x = x" compiler warning hacks
  fast-import: use pointer-to-pointer to keep list tail
2013-03-21 14:06:55 -07:00
Jeff King
cbfd5e1cbb drop some obsolete "x = x" compiler warning hacks
In cases where the setting and access of a variable are
protected by the same conditional flag, older versions of
gcc would generate a "might be used unitialized" warning. We
silence the warning by initializing the variable to itself,
a hack that gcc recognizes.

Modern versions of gcc are smart enough to get this right,
going back to at least version 4.3.5. gcc 4.1 does get it
wrong in both cases, but is sufficiently old that we
probably don't need to care about it anymore.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-21 14:06:38 -07:00
Junio C Hamano
8115c9386c Merge branch 'jk/mailsplit-maildir-muttsort'
Sort filenames read from the maildir/ in a way that is more likely
to sort messages in the order the writing MUA meant to, by sorting
numeric segment in numeric order and non-numeric segment in
alphabetical order.

* jk/mailsplit-maildir-muttsort:
  mailsplit: sort maildir filenames more cleverly
2013-03-21 14:03:08 -07:00
Junio C Hamano
0f6875dbe2 Merge branch 'mg/gpg-interface-using-status'
Call "gpg" using the right API when validating the signature on
tags.

* mg/gpg-interface-using-status:
  pretty: make %GK output the signing key for signed commits
  pretty: parse the gpg status lines rather than the output
  gpg_interface: allow to request status return
  log-tree: rely upon the check in the gpg_interface
  gpg-interface: check good signature in a reliable way
2013-03-21 14:02:55 -07:00
Junio C Hamano
42e129f47a Merge branch 'nd/branch-error-cases'
"git branch" had more cases where it did not bother to check
nonsense command line parameters.

* nd/branch-error-cases:
  branch: segfault fixes and validation
2013-03-21 14:02:51 -07:00
Junio C Hamano
6d7e0c522e Merge branch 'ap/maint-update-index-h-is-for-help'
"git update-index -h" did not do the usual "-h(elp)" thing.

* ap/maint-update-index-h-is-for-help:
  update-index: allow "-h" to also display options
2013-03-21 14:02:48 -07:00
Junio C Hamano
54797b98b8 Merge branch 'bc/commit-complete-lines-given-via-m-option'
'git commit -m "$str"' when $str was already terminated with a LF
now avoids adding an extra LF to the message.

* bc/commit-complete-lines-given-via-m-option:
  Documentation/git-commit.txt: rework the --cleanup section
  git-commit: only append a newline to -m mesg if necessary
  t7502: demonstrate breakage with a commit message with trailing newlines
  t/t7502: compare entire commit message with what was expected
2013-03-21 14:02:37 -07:00
Junio C Hamano
f5715de54a Merge branch 'nd/count-garbage'
"git count-objects -v" did not count leftover temporary packfiles
and other kinds of garbage.

* nd/count-garbage:
  count-objects: report how much disk space taken by garbage files
  count-objects: report garbage files in pack directory too
  sha1_file: reorder code in prepare_packed_git_one()
  git-count-objects.txt: describe each line in -v output
2013-03-21 14:02:34 -07:00
Junio C Hamano
e4e1c54990 Merge branch 'jc/fetch-raw-sha1'
Allows requests to fetch objects at any tip of refs (including
hidden ones).  It seems that there may be use cases even outside
Gerrit (e.g. $gmane/215701).

* jc/fetch-raw-sha1:
  fetch: fetch objects by their exact SHA-1 object names
  upload-pack: optionally allow fetching from the tips of hidden refs
  fetch: use struct ref to represent refs to be fetched
  parse_fetch_refspec(): clarify the codeflow a bit
2013-03-21 14:02:27 -07:00
Junio C Hamano
09386fff33 Merge branch 'nd/index-pack-l10n-buf-overflow'
* nd/index-pack-l10n-buf-overflow:
  index-pack: fix buffer overflow caused by translations
2013-03-21 14:02:16 -07:00
Jeff King
57165db003 index-pack: always zero-initialize object_entry list
Commit 38a4556 (index-pack: start learning to emulate
"verify-pack -v", 2011-06-03) added a "delta_depth" counter
to each "struct object_entry". Initially, all object entries
have their depth set to 0; in resolve_delta, we then set the
depth of each delta to "base + 1". Base entries never have
their depth touched, and remain at 0.

To ensure that all depths start at 0, that commit changed
calls to xmalloc the object_entry list into calls to
xcalloc.  However, it forgot that we grow the list with
xrealloc later. These extra entries are used when we add an
object from elsewhere to complete a thin pack. If we add a
non-delta object, its depth value will just be uninitialized
heap data.

This patch fixes it by zero-initializing entries we add to
the objects list via the xrealloc.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-20 12:53:26 -07:00
Jonathan Nieder
e24afab091 add: make pathless 'add [-u|-A]' warning a file-global function
Currently warn_pathless_add() is only called directly by cmd_add(),
but that is about to change.  Move its definition higher in the file
and pass the "--update" or "--all" option name used in its message
through globals instead of function arguments to make it easier to
call without passing values that will not change through the call
chain.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-20 07:41:42 -07:00
Junio C Hamano
9adf272a38 Merge branch 'gp/avoid-explicit-mention-of-dot-git-refs'
* gp/avoid-explicit-mention-of-dot-git-refs:
  Fix ".git/refs" stragglers
2013-03-19 12:16:22 -07:00
Junio C Hamano
2d1495fe44 merge: a random object may not necssarily be a commit
The user could have said "git merge $(git rev-parse v1.0.0)"; we
shouldn't mark it as "Merge commit '15999998fb...'" as the merge
name, even though such an invocation might be crazy.

We could even read the "tag " header from the tag object and replace
the object name the user gave us, but let's not lose the information
by doing so, at least not yet.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 10:59:07 -07:00
Thomas Rast
8f82aad4e7 index-pack: guard nr_resolved_deltas reads by lock
The threaded parts of index-pack increment the number of resolved
deltas in nr_resolved_deltas guarded by counter_mutex.  However, the
per-thread outer loop accessed nr_resolved_deltas without any locks.

This is not wrong as such, since it doesn't matter all that much
whether we get an outdated value.  However, unless someone proves that
this one lock makes all the performance difference, it would be much
cleaner to guard _all_ accesses to the variable with the lock.

The only such use is display_progress() in the threaded section (all
others are in the conclude_pack() callchain outside the threaded
part).  To make it obvious that it cannot deadlock, move it out of
work_mutex.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Reviewed-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 08:40:47 -07:00
Nguyễn Thái Ngọc Duy
3aba2fddcb index-pack: protect deepest_delta in multithread code
deepest_delta is a global variable but is updated without protection
in resolve_delta(), a multithreaded function. Add a new mutex for it,
but only protect and update when it's actually used (i.e. show_stat is
non-zero).

Another variable that will not be updated is delta_depth in "struct
object_entry" as it's only useful when show_stat is 1. Putting it in
"if (show_stat)" makes it clearer.

The local variable "stat" is renamed to "show_stat" after moving to
global scope because the name "stat" conflicts with stat(2) syscall.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 08:40:19 -07:00
Jeff King
30b939c33a fast-export: do not load blob objects twice
When fast-export wants to export a blob object, it first
calls parse_object to get a "struct object" and check
whether we have already shown the object.  If we haven't
shown it, we then use read_sha1_file to pull it from disk
and write it out.

That means we load each blob from disk twice: once for
parse_object to find its type and check its sha1, and a
second time when we actually output it. We can drop this to
a single load by using lookup_object to check the SHOWN
flag, and then checking the signature on and outputting a
single buffer.

This provides modest speedups on git.git (best-of-five, "git
fast-export HEAD >/dev/null"):

  [before]                [after]
  real    0m14.347s       real    0m13.780s
  user    0m14.084s       user    0m13.620s
  sys     0m0.208s        sys     0m0.100s

and somewhat more on more blob-heavy repos (this is a
repository full of media files):

  [before]                [after]
  real    0m52.236s       real    0m44.451s
  user    0m50.568s       user    0m43.000s
  sys     0m1.536s        sys     0m1.284s

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 15:28:15 -07:00
Jeff King
f9b54e2630 fast-export: rename handle_object function
The handle_object function is rather vaguely named; it only
operates on blobs, and its purpose is to export the blob to
the output stream. Let's call it "export_blob" to make it
more clear what it does.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 15:28:10 -07:00
Jeff King
f7892d1817 use parse_object_or_die instead of die("bad object")
Some call-sites do:

  o = parse_object(sha1);
  if (!o)
	  die("bad object %s", some_name);

We can now handle that as a one-liner, and get more
consistent output.

In the third case of this patch, it looks like we are losing
information, as the existing message also outputs the sha1
hex; however, parse_object will already have written a more
specific complaint about the sha1, so there is no point in
repeating it here.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-17 12:52:14 -07:00
Nguyễn Thái Ngọc Duy
c8183cd285 branch: show more information when HEAD is detached
This prints more helpful info when HEAD is detached: is it detached
because of bisect or rebase? What is the original branch name in those
cases? Is it detached because the user checks out a remote ref or a
tag (and which one)?

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-16 22:11:02 -07:00
Nguyễn Thái Ngọc Duy
5c3459fc61 index-pack: fix buffer overflow caused by translations
The translation of "completed with %d local objects" is put in a
48-byte buffer, which may be enough for English but not true for any
translations. Convert it to use strbuf (i.e. no hard limit on
translation length).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-16 22:08:53 -07:00
Phil Hord
3ae851e6fb tag: --force does not have to warn when creating tags
"git tag --force" mentions what old tag object is being replaced
when it is used to update an existing tag, but it shows the same
message when creating a new one.  Stop doing that, as it does not
add any information.

Add a test for this and also to ensure --force can replace tags at
all.

Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-13 10:35:15 -07:00
Matthieu Moy
c6898ebf21 add: update pathless 'add [-u|-A]' warning to reflect change of plan
We originally thought the transition would need a period where "git add
[-u|-A]" without pathspec would be forbidden, but the warning is big
enough to scare people and teach them not to use it (or, if so, to
understand the consequences).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-11 07:57:35 -07:00
Junio C Hamano
45c45e300b git add: start preparing for "git add <pathspec>..." to default to "-A"
When "git add subdir/" is run without "-u" or "-A" option, e.g.

    $ edit subdir/x
    $ create subdir/y
    $ rm subdir/z
    $ git add subdir/

the command does not notice removal of paths (e.g. subdir/z) from
the working tree.  This sometimes confuses new people, as arguably
"git add" is told to record the current state of "subdir/" as a
whole, not the current state of the paths that exist in the working
tree that matches that pathspec (the latter by definition excludes
the state of "subdir/z" because it does not exist in the working
tree).

Plan to eventually make "git add" pretend as if "-A" is given when
there is a pathspec on the command line.  When resolving a conflict
to remove a path, the current code tells you to "git rm $path", but
with such a change, you will be able to say "git add $path" (of
course you can do "git add -A $path" today).  That means that we can
simplify the advice messages given by "git status".  That all will
be in Git 2.0 or later, if we are going to do so.

For that transition to work, people need to learn either to say "git
add --no-all subdir/" when they want to ignore the removed paths
like "subdir/z", or to say "git add -A subdir/" when they want to
take the state of the directory as a whole.

"git add" without any argument will continue to be a no-op.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-08 23:26:56 -08:00
Junio C Hamano
300c0a2209 builtin/add.c: simplify boolean variables
Do not to explicitly initialize static variables to 0 and instead
let BSS take care of it.  Also use OPT_BOOL() to let the command
line arguments set these variables to 0 or 1, instead of the
deprecated OPT_BOOLEAN() aka OPT_COUNTUP().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-08 22:21:13 -08:00
Junio C Hamano
c2aba155da push: --follow-tags
The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.

For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else.  With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 13:39:46 -08:00
Junio C Hamano
e8e92e05ab reflog: fix typo in "reflog expire" clean-up codepath
In "reflog expire" we were not clearing the REACHABLE bit from
objects reachable from the tip of refs we marked earlier.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 12:49:59 -08:00
Jeff King
18505c3423 mailsplit: sort maildir filenames more cleverly
A maildir does not technically record the order in which
items were placed into it. That means that when applying a
patch series from a maildir, we may get the patches in the
wrong order. We try to work around this by sorting the
filenames. Unfortunately, this may or may not work depending
on the naming scheme used by the writer of the maildir.

For instance, mutt will write:

  ${epoch_seconds}.${pid}_${seq}.${host}

where we have:

  - epoch_seconds: timestamp at which entry was written
  - pid: PID of writing process
  - seq: a sequence number to ensure uniqueness of filenames
  - host: hostname

None of the numbers are zero-padded. Therefore, when we sort
the names as byte strings, entries that cross a digit
boundary (e.g., 10) will sort out of order.  In the case of
timestamps, it almost never matters (because we do not cross
a digit boundary in the epoch time very often these days).
But for the sequence number, a 10-patch series would be
ordered as 1, 10, 2, 3, etc.

To fix this, we can use a custom sort comparison function
which traverses each string, comparing chunks of digits
numerically, and otherwise doing a byte-for-byte comparison.
That would sort:

  123.456_1.bar
  123.456_2.bar
  ...
  123.456_10.bar

according to the sequence number. Since maildir does not
define a filename format, this is really just a heuristic.
But it happens to work for mutt, and there is a reasonable
chance that it will work for other writers, too (at least as
well as a straight sort).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-02 22:52:44 -08:00
Junio C Hamano
46e1d6eb4d describe: --match=<pattern> must limit the refs even when used with --all
The logic to limit the refs used for describing with a matching pattern
with --match=<pattern> parameter was implemented incorrectly when --all
is in effect.  It just demoted a ref that did not match the pattern to
lower priority---if there aren't other refs with higher priority
that describe the given commit, such an unmatching ref was still used.

When --match is used, reject refs that do not match the given
criteria, so that with or without --all, the output will only use
refs that match the pattern.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-28 13:53:00 -08:00
Junio C Hamano
ef94636a4d Merge branch 'as/check-ignore'
"git check-ignore ." segfaulted, as a function it calls deep in its
callchain took a string in the <ptr, length> form but did not stop
when given an empty string.

* as/check-ignore:
  name-hash: allow hashing an empty string
  t0008: document test_expect_success_multi
2013-02-25 08:27:09 -08:00
Junio C Hamano
66d12f97d0 Merge branch 'jk/apply-similaritly-parsing' into maint
* jk/apply-similaritly-parsing:
  builtin/apply: tighten (dis)similarity index parsing
2013-02-25 08:03:44 -08:00
Junio C Hamano
c0e96dd2ca Merge branch 'zk/clean-report-failure' into maint
* zk/clean-report-failure:
  git-clean: Display more accurate delete messages
2013-02-25 08:03:32 -08:00
Junio C Hamano
0e0c3f25d0 Merge branch 'nd/clone-no-separate-git-dir-with-bare' into maint
* nd/clone-no-separate-git-dir-with-bare:
  clone: forbid --bare --separate-git-dir <dir>
2013-02-25 08:03:27 -08:00
Greg Price
48dfe969fc Fix ".git/refs" stragglers
A couple of references still survive to .git/refs as a tree
of all refs.  Fix one in docs, one in a -h message, one in
a -h message quoted in docs.

Signed-off-by: Greg Price <price@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-24 22:23:32 -08:00
Jeff King
85edf4f58b teach get_remote_heads to read from a memory buffer
Now that we can read packet data from memory as easily as a
descriptor, get_remote_heads can take either one as a
source. This will allow further refactoring in remote-curl.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-24 00:17:38 -08:00
Antoine Pelisse
b04d930bbc update-index: allow "-h" to also display options
Even though "git update-index" was updated to use parse-options
infrastracture some time ago to make it possible to show list of
options with usage_with_options(), "git update-index -h" only shows
the usage.  Detect this case and call usage_with_options() to show
the list of options as well.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-23 23:49:33 -08:00
Nguyễn Thái Ngọc Duy
8efb8899cf branch: segfault fixes and validation
branch_get() can return NULL (so far on detached HEAD only) but some
code paths in builtin/branch.c cannot deal with that and cause
segfaults.

While at there, make sure to bail out when the user gives 2 or more
branches with --set-upstream-to or --unset-upstream, where only the
first branch is processed and the rest silently dropped.

Reported-by: Per Cederqvist <cederp@opera.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-23 11:53:21 -08:00
Jeff King
74543a0423 pkt-line: provide a LARGE_PACKET_MAX static buffer
Most of the callers of packet_read_line just read into a
static 1000-byte buffer (callers which handle arbitrary
binary data already use LARGE_PACKET_MAX). This works fine
in practice, because:

  1. The only variable-sized data in these lines is a ref
     name, and refs tend to be a lot shorter than 1000
     characters.

  2. When sending ref lines, git-core always limits itself
     to 1000 byte packets.

However, the only limit given in the protocol specification
in Documentation/technical/protocol-common.txt is
LARGE_PACKET_MAX; the 1000 byte limit is mentioned only in
pack-protocol.txt, and then only describing what we write,
not as a specific limit for readers.

This patch lets us bump the 1000-byte limit to
LARGE_PACKET_MAX. Even though git-core will never write a
packet where this makes a difference, there are two good
reasons to do this:

  1. Other git implementations may have followed
     protocol-common.txt and used a larger maximum size. We
     don't bump into it in practice because it would involve
     very long ref names.

  2. We may want to increase the 1000-byte limit one day.
     Since packets are transferred before any capabilities,
     it's difficult to do this in a backwards-compatible
     way. But if we bump the size of buffer the readers can
     handle, eventually older versions of git will be
     obsolete enough that we can justify bumping the
     writers, as well. We don't have plans to do this
     anytime soon, but there is no reason not to start the
     clock ticking now.

Just bumping all of the reading bufs to LARGE_PACKET_MAX
would waste memory. Instead, since most readers just read
into a temporary buffer anyway, let's provide a single
static buffer that all callers can use. We can further wrap
this detail away by having the packet_read_line wrapper just
use the buffer transparently and return a pointer to the
static storage.  That covers most of the cases, and the
remaining ones already read into their own LARGE_PACKET_MAX
buffers.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:22 -08:00
Jeff King
819b929d33 pkt-line: teach packet_read_line to chomp newlines
The packets sent during ref negotiation are all terminated
by newline; even though the code to chomp these newlines is
short, we end up doing it in a lot of places.

This patch teaches packet_read_line to auto-chomp the
trailing newline; this lets us get rid of a lot of inline
chomping code.

As a result, some call-sites which are not reading
line-oriented data (e.g., when reading chunks of packfiles
alongside sideband) transition away from packet_read_line to
the generic packet_read interface. This patch converts all
of the existing callsites.

Since the function signature of packet_read_line does not
change (but its behavior does), there is a possibility of
new callsites being introduced in later commits, silently
introducing an incompatibility.  However, since a later
patch in this series will change the signature, such a
commit would have to be merged directly into this commit,
not to the tip of the series; we can therefore ignore the
issue.

This is an internal cleanup and should produce no change of
behavior in the normal case. However, there is one corner
case to note. Callers of packet_read_line have never been
able to tell the difference between a flush packet ("0000")
and an empty packet ("0004"), as both cause packet_read_line
to return a length of 0. Readers treat them identically,
even though Documentation/technical/protocol-common.txt says
we must not; it also says that implementations should not
send an empty pkt-line.

By stripping out the newline before the result gets to the
caller, we will now treat the newline-only packet ("0005\n")
the same as an empty packet, which in turn gets treated like
a flush packet. In practice this doesn't matter, as neither
empty nor newline-only packets are part of git's protocols
(at least not for the line-oriented bits, and readers who
are not expecting line-oriented packets will be calling
packet_read directly, anyway). But even if we do decide to
care about the distinction later, it is orthogonal to this
patch.  The right place to tighten would be to stop treating
empty packets as flush packets, and this change does not
make doing so any harder.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King
cdf4fb8e33 pkt-line: drop safe_write function
This is just write_or_die by another name. The one
distinction is that write_or_die will treat EPIPE specially
by suppressing error messages. That's fine, as we die by
SIGPIPE anyway (and in the off chance that it is disabled,
write_or_die will simulate it).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King
090fd4fe24 upload-archive: use argv_array to store client arguments
The current parsing scheme for upload-archive is to pack
arguments into a fixed-size buffer, separated by NULs, and
put a pointer to each argument in the buffer into a
fixed-size argv array.

This works fine, and the limits are high enough that nobody
reasonable is going to hit them, but it makes the code hard
to follow.  Instead, let's just stuff the arguments into an
argv_array, which is much simpler. That lifts the "all
arguments must fit inside 4K together" limit.

We could also trivially lift the MAX_ARGS limitation (in
fact, we have to keep extra code to enforce it). But that
would mean a client could force us to allocate an arbitrary
amount of memory simply by sending us "argument" lines. By
limiting the MAX_ARGS, we limit an attacker to about 4
megabytes (64 times a maximum 64K packet buffer). That may
sound like a lot compared to the 4K limit, but it's not a
big deal compared to what git-archive will actually allocate
while working (e.g., to load blobs into memory). The
important thing is that it is bounded.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Jeff King
6379dd0522 upload-archive: do not copy repo name
According to the comment, enter_repo will modify its input.
However, this has not been the case since 1c64b48
(enter_repo: do not modify input, 2011-10-04). Drop the
now-useless copy.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-20 13:42:21 -08:00
Junio C Hamano
c19387e799 name-hash: allow hashing an empty string
Usually we do not pass an empty string to the function hash_name()
because we almost always ask for hash values for a path that is a
candidate to be added to the index. However, check-ignore (and most
likely check-attr, but I didn't check) apparently has a callchain
to ask the hash value for an empty path when it was given a "." from
the top-level directory to ask "Is the path . excluded by default?"

Make sure that hash_name() does not overrun the end of the given
pathname even when it is empty.

Remove a sweep-the-issue-under-the-rug conditional in check-ignore
that avoided to pass an empty string to the callchain while at it.
It is a valid question to ask for check-ignore if the top-level is
set to be ignored by default, even though the answer is most likely
no, if only because there is currently no way to specify such an
entry in the .gitignore file. But it is an unusual thing to ask and
it is not worth optimizing for it by special casing at the top level
of the call chain.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-19 14:00:12 -08:00
Brandon Casey
a24a41ea9a git-commit: only append a newline to -m mesg if necessary
Currently, git will append two newlines to every message supplied via
the -m switch.  The purpose of this is to allow -m to be supplied
multiple times and have each supplied string become a paragraph in the
resulting commit message.

Normally, this does not cause a problem since any trailing newlines will
be removed by the cleanup operation.  If cleanup=verbatim for example,
then the trailing newlines will not be removed and will survive into the
resulting commit message.

Instead, let's ensure that the string supplied to -m is newline terminated,
but only append a second newline when appending additional messages.

Fixes the test in t7502.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-19 09:30:50 -08:00
Junio C Hamano
ce735bf7fd Merge branch 'jc/hidden-refs'
Allow the server side to redact the refs/ namespace it shows to the
client.

Will merge to 'master'.

* jc/hidden-refs:
  upload/receive-pack: allow hiding ref hierarchies
  upload-pack: simplify request validation
  upload-pack: share more code
2013-02-17 15:25:57 -08:00
Nguyễn Thái Ngọc Duy
1a20dd49f8 count-objects: report how much disk space taken by garbage files
Also issue warnings on loose garbages instead of errors as a result of
using report_garbage() function in count_objects()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-15 09:02:34 -08:00
Nguyễn Thái Ngọc Duy
543c5caa6c count-objects: report garbage files in pack directory too
prepare_packed_git_one() is modified to allow count-objects to hook a
report function to so we don't need to duplicate the pack searching
logic in count-objects.c. When report_pack_garbage is NULL, the
overhead is insignificant.

The garbage is reported with warning() instead of error() in packed
garbage case because it's not an error to have garbage. Loose garbage
is still reported as errors and will be converted to warnings later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-15 08:13:13 -08:00
Junio C Hamano
d3354cde33 Merge branch 'jc/extended-fake-ancestor-for-gitlink'
Instead of requiring the full 40-hex object names on the index
line, we can read submodule commit object names from the textual
diff when synthesizing a fake ancestore tree for "git am -3".

* jc/extended-fake-ancestor-for-gitlink:
  apply: verify submodule commit object name better
2013-02-14 10:28:48 -08:00
Michael J Gruber
9cc4ac8ff1 gpg_interface: allow to request status return
Currently, verify_signed_buffer() returns the user facing output only.

Allow callers to request the status output also.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-14 09:30:04 -08:00
Junio C Hamano
5bf72ed2e7 Merge branch 'maint'
* maint:
  Replace filepattern with pathspec for consistency
2013-02-12 12:23:12 -08:00
Nguyễn Thái Ngọc Duy
5289c56a72 format-patch: update append_signoff prototype
This is a preparation step for merging with append_signoff from
sequencer.c

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:29:56 -08:00
Brandon Casey
bab4d1097c sequencer.c: teach append_signoff how to detect duplicate s-o-b
Teach append_signoff how to detect a duplicate s-o-b in the commit footer.
This is in preparation to unify the append_signoff implementations in
log-tree.c and sequencer.c.

Fixes test in t3511.

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:17:10 -08:00
Matthieu Moy
d32805dce7 Replace filepattern with pathspec for consistency
pathspec is the most widely used term, and is the one defined in
gitglossary.txt. <filepattern> was used only in the synopsys for git-add
and git-commit, and in git-add.txt. Get rid of it.

This patch is obtained with by running:

  perl -pi -e 's/filepattern/pathspec/' `git grep -l filepattern`

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 10:05:38 -08:00
Junio C Hamano
ecf6778e8e Merge branch 'jk/apply-similaritly-parsing'
Make sure the similarity value shown in the "apply --summary"
output is sensible, even when the input had a bogus value.

* jk/apply-similaritly-parsing:
  builtin/apply: tighten (dis)similarity index parsing
2013-02-08 15:29:02 -08:00
Junio C Hamano
427c6d0caf Merge branch 'jc/fake-ancestor-with-non-blobs' into maint
Rebasing the history of superproject with change in the submodule
has been broken since v1.7.12.

* jc/fake-ancestor-with-non-blobs:
  apply: diagnose incomplete submodule object name better
  apply: simplify build_fake_ancestor()
  git-am: record full index line in the patch used while rebasing
2013-02-07 15:14:22 -08:00
Junio C Hamano
f507784d2c Merge branch 'nd/branch-error-cases'
Fix various error messages and conditions in "git branch", e.g. we
advertised "branch -d/-D" to remove one or more branches but actually
implemented removal of zero or more branches---request to remove no
branches was not rejected.

* nd/branch-error-cases:
  branch: let branch filters imply --list
  docs: clarify git-branch --list behavior
  branch: mark more strings for translation
  branch: give a more helpful message on redundant arguments
  branch: reject -D/-d without branch name
2013-02-07 14:41:38 -08:00
Junio C Hamano
f2db854d24 fetch: use struct ref to represent refs to be fetched
Even though "git fetch" has full infrastructure to parse refspecs to
be fetched and match them against the list of refs to come up with
the final list of refs to be fetched, the list of refs that are
requested to be fetched were internally converted to a plain list of
strings at the transport layer and then passed to the underlying
fetch-pack driver.

Stop this conversion and instead pass around an array of refs.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 13:53:59 -08:00
Junio C Hamano
daebaa7813 upload/receive-pack: allow hiding ref hierarchies
A repository may have refs that are only used for its internal
bookkeeping purposes that should not be exposed to the others that
come over the network.

Teach upload-pack to omit some refs from its initial advertisement
by paying attention to the uploadpack.hiderefs multi-valued
configuration variable.  Do the same to receive-pack via the
receive.hiderefs variable.  As a convenient short-hand, allow using
transfer.hiderefs to set the value to both of these variables.

Any ref that is under the hierarchies listed on the value of these
variable is excluded from responses to requests made by "ls-remote",
"fetch", etc. (for upload-pack) and "push" (for receive-pack).

Because these hidden refs do not count as OUR_REF, an attempt to
fetch objects at the tip of them will be rejected, and because these
refs do not get advertised, "git push :" will not see local branches
that have the same name as them as "matching" ones to be sent.

An attempt to update/delete these hidden refs with an explicit
refspec, e.g. "git push origin :refs/hidden/22", is rejected.  This
is not a new restriction.  To the pusher, it would appear that there
is no such ref, so its push request will conclude with "Now that I
sent you all the data, it is time for you to update the refs.  I saw
that the ref did not exist when I started pushing, and I want the
result to point at this commit".  The receiving end will apply the
compare-and-swap rule to this request and rejects the push with
"Well, your update request conflicts with somebody else; I see there
is such a ref.", which is the right thing to do. Otherwise a push to
a hidden ref will always be "the last one wins", which is not a good
default.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-07 13:48:47 -08:00
Junio C Hamano
6d81ce0543 Merge branch 'jc/fake-ancestor-with-non-blobs'
Rebasing the history of superproject with change in the submodule
was broken since v1.7.12.

* jc/fake-ancestor-with-non-blobs:
  apply: diagnose incomplete submodule object name better
  apply: simplify build_fake_ancestor()
  git-am: record full index line in the patch used while rebasing
2013-02-05 16:13:12 -08:00
Junio C Hamano
5e026920a9 apply: verify submodule commit object name better
A textual patch also records the submodule commit object name in
full.  Make the parsing more robust by reading from there and
verifying the (possibly abbreviated) name on the index line matches.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05 11:20:09 -08:00
Junio C Hamano
d5365b4327 Merge branch 'jk/read-commit-buffer-data-after-free'
Clarify the ownership rule for commit->buffer field, which some
callers incorrectly accessed without making sure it is populated.

* jk/read-commit-buffer-data-after-free:
  logmsg_reencode: lazily load missing commit buffers
  logmsg_reencode: never return NULL
  commit: drop useless xstrdup of commit message
2013-02-04 10:25:18 -08:00
Junio C Hamano
27d46a7072 Merge branch 'mm/add-u-A-sans-pathspec'
Forbid "git add -u" and "git add -A" without pathspec run from a
subdirectory, to train people to type "." (or ":/") to make the
choice of default does not matter.

* mm/add-u-A-sans-pathspec:
  add: warn when -u or -A is used without pathspec
2013-02-04 10:25:14 -08:00
Junio C Hamano
370855e967 Merge branch 'jc/push-reject-reasons'
Improve error and advice messages given locally when "git push"
refuses when it cannot compute fast-forwardness by separating these
cases from the normal "not a fast-forward; merge first and push
again" case.

* jc/push-reject-reasons:
  push: finishing touches to explain REJECT_ALREADY_EXISTS better
  push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
  push: further simplify the logic to assign rejection reason
  push: further clean up fields of "struct ref"
2013-02-04 10:25:04 -08:00
Junio C Hamano
099ba556d0 Merge branch 'jk/config-parsing-cleanup'
Configuration parsing for tar.* configuration variables were
broken. Introduce a new config-keyname parser API to make the
callers much less error prone.

* jk/config-parsing-cleanup:
  reflog: use parse_config_key in config callback
  help: use parse_config_key for man config
  submodule: simplify memory handling in config parsing
  submodule: use parse_config_key when parsing config
  userdiff: drop parse_driver function
  convert some config callbacks to parse_config_key
  archive-tar: use parse_config_key when parsing config
  config: add helper function for parsing key names
2013-02-04 10:24:50 -08:00
Junio C Hamano
149a4211a4 Merge branch 'jc/custom-comment-char'
Allow a configuration variable core.commentchar to customize the
character used to comment out the hint lines in the edited text from
the default '#'.

* jc/custom-comment-char:
  Allow custom "comment char"
2013-02-04 10:23:49 -08:00
Junio C Hamano
6cc01490c3 Merge branch 'nd/edit-branch-desc-while-detached' into maint
Attempt to "branch --edit-description" an existing branch, while
being on a detached HEAD, errored out.

* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-02-04 10:04:44 -08:00
Junio C Hamano
ba8748e6d6 Merge branch 'jc/help' into maint
* jc/help:
  help: include <common-cmds.h> only in one file
2013-02-04 10:04:06 -08:00
Junio C Hamano
686b895928 Merge branch 'jc/merge-blobs' into maint
* jc/merge-blobs:
  Makefile: Replace merge-file.h with merge-blobs.h in LIB_H
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-02-04 10:03:41 -08:00
John Keeping
afcb6ac83d builtin/apply: tighten (dis)similarity index parsing
This was prompted by an incorrect warning issued by clang [1], and a
suggestion by Linus to restrict the range to check for values greater
than INT_MAX since these will give bogus output after casting to int.

In fact the (dis)similarity index is a percentage, so reject values
greater than 100.

[1] http://article.gmane.org/gmane.comp.version-control.git/213857

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-03 13:47:43 -08:00
Junio C Hamano
d3c0f7773f Merge branch 'nd/edit-branch-desc-while-detached'
Attempt to "branch --edit-description" an existing branch, while
being on a detached HEAD, errored out.

* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-02-01 12:40:52 -08:00
Junio C Hamano
4acfff9dda Merge branch 'jk/gc-auto-after-fetch'
Help "fetch only" repositories that do not trigger "gc --auto"
often enough.

* jk/gc-auto-after-fetch:
  fetch-pack: avoid repeatedly re-scanning pack directory
  fetch: run gc --auto after fetching
2013-02-01 12:40:16 -08:00
Junio C Hamano
ba96aa67be Merge branch 'jc/no-git-config-in-clone'
We stopped paying attention to $GIT_CONFIG environment that points
at a single configuration file from any command other than "git config"
quite a while ago, but "git clone" internally set, exported, and
then unexported the variable during its operation unnecessarily.

* jc/no-git-config-in-clone:
  clone: do not export and unexport GIT_CONFIG
2013-02-01 12:39:37 -08:00
Junio C Hamano
2532d891a4 Merge branch 'nd/fetch-depth-is-broken'
"git fetch --depth" was broken in at least three ways.  The
resulting history was deeper than specified by one commit, it was
unclear how to wipe the shallowness of the repository with the
command, and documentation was misleading.

* nd/fetch-depth-is-broken:
  fetch: elaborate --depth action
  upload-pack: fix off-by-one depth calculation in shallow clone
  fetch: add --unshallow for turning shallow repo into complete one
2013-02-01 12:39:24 -08:00
Junio C Hamano
e28efb1998 apply: diagnose incomplete submodule object name better
"git am -3" uses this function to build a tree that records how the
preimage the patch was created from would have looked like.  An
abbreviated object name on the index line is ordinarily sufficient
for us to figure out the object name the preimage tree would have
contained, but a change to a submodule by definition shows an object
name of a submodule commit which our repository should not have, and
get_sha1_blob() is not an appropriate way to read it (or get_sha1()
for that matter).

Use get_sha1_hex() and complain if we do not find a full object name
there.

We could read from the payload part of the patch to learn the full
object name of the commit, but the primary user "git rebase" has
been fixed to give us a full object name, so this should suffice
for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 20:30:55 -08:00
Junio C Hamano
e2afb0be90 apply: simplify build_fake_ancestor()
The local variable sha1_ptr in the build_fake_ancestor() function
used to either point at the null_sha1[] (if the ancestor did not
have the path) or at sha1[] (if we read the object name into the
local array), but 7a98869 (apply: get rid of --index-info in favor
of --build-fake-ancestor, 2007-09-17) made the "missing in the
ancestor" case unnecessary, hence sha1_ptr, when used, always points
at the local array.

Get rid of the unneeded variable, and restructure the if/else
cascade a bit to make it easier to read.  There should be no
behaviour change.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 20:30:55 -08:00
Jeff King
d040350813 branch: let branch filters imply --list
Currently, a branch filter like `--contains`, `--merged`, or
`--no-merged` is ignored when we are not in listing mode.
For example:

  git branch --contains=foo bar

will create the branch "bar" from the current HEAD, ignoring
the `--contains` argument entirely. This is not very
helpful. There are two reasonable behaviors for git here:

  1. Flag an error; the arguments do not make sense.

  2. Implicitly go into `--list` mode

This patch chooses the latter, as it is more convenient, and
there should not be any ambiguity with attempting to create
a branch; using `--contains` and not wanting to list is
nonsensical.

That leaves the case where an explicit modification option
like `-d` is given.  We already catch the case where
`--list` is given alongside `-d` and flag an error. With
this patch, we will also catch the use of `--contains` and
other filter options alongside `-d`.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 16:37:24 -08:00
Nguyễn Thái Ngọc Duy
045e3884bc branch: mark more strings for translation
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:01:49 -08:00
Junio C Hamano
35484d4acd Merge branch 'nd/edit-branch-desc-while-detached' into HEAD
* nd/edit-branch-desc-while-detached:
  branch: no detached HEAD check when editing another branch's description
2013-01-30 09:01:41 -08:00
Nguyễn Thái Ngọc Duy
43722c4d9e branch: give a more helpful message on redundant arguments
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:00:41 -08:00
Nguyễn Thái Ngọc Duy
640d0401be branch: reject -D/-d without branch name
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 09:00:41 -08:00
Nguyễn Thái Ngọc Duy
75135b23f6 branch: no detached HEAD check when editing another branch's description
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-30 08:59:56 -08:00
Junio C Hamano
7b5196909c Merge branch 'nd/magic-pathspec-from-root'
When giving arguments without "--" disambiguation, object names
that come  earlier on the command line must not be interpretable as
pathspecs and pathspecs that come later on the command line must
not be interpretable as object names.  Tweak the disambiguation
rule so that ":/" (no other string before or after) is always
interpreted as a pathspec, to avoid having to say "git cmd -- :/".

* nd/magic-pathspec-from-root:
  grep: avoid accepting ambiguous revision
  Update :/abc ambiguity check
2013-01-30 08:52:53 -08:00
Junio C Hamano
d959a78d98 Merge branch 'jc/help'
A header file that has the definition of a static array was
included in two places, wasting the space.

* jc/help:
  help: include <common-cmds.h> only in one file
2013-01-28 10:59:15 -08:00
Matthieu Moy
0fa2eb530f add: warn when -u or -A is used without pathspec
Most Git commands that can be used with or without pathspec operate
tree-wide by default, the pathspec being used to restrict their
scope.  A few exceptions are: 'git grep', 'git clean', 'git add -u'
and 'git add -A'.  When run in a subdirectory without pathspec, they
operate only on paths in the current directory.

The inconsistency of 'git add -u' and 'git add -A' is particularly
problematic since other 'git add' subcommands (namely 'git add -p'
and 'git add -e') are tree-wide by default.  It also means that "git
add -u && git commit" will record a state that is different from
what is recorded with "git commit -a".

Flipping the default now is unacceptable, so let's start training
users to type 'git add -u|-A :/' or 'git add -u|-A .' explicitly, to
prepare for the next steps:

* forbid 'git add -u|-A' without pathspec (like 'git add' without
  option)

* much later, maybe, re-allow 'git add -u|-A' without pathspec, that
  will add all tracked and modified files, or all files, tree-wide.

A nice side effect of this patch is that it makes the :/ magic
pathspec easier to discover for users.

When the command is called from the root of the tree, there is no
ambiguity and no need to change the behavior, hence no need to warn.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-28 10:31:35 -08:00
Junio C Hamano
012a1bb524 Merge branch 'jk/maint-gc-auto-after-fetch' into jk/gc-auto-after-fetch
* jk/maint-gc-auto-after-fetch:
  fetch-pack: avoid repeatedly re-scanning pack directory
  fetch: run gc --auto after fetching
2013-01-26 19:42:09 -08:00
Jeff King
b495697b82 fetch-pack: avoid repeatedly re-scanning pack directory
When we look up a sha1 object for reading via parse_object() =>
read_sha1_file() => read_object() callpath, we first check
packfiles, and then loose objects. If we still haven't found it, we
re-scan the list of packfiles in `objects/pack`. This final step
ensures that we can co-exist with a simultaneous repack process
which creates a new pack and then prunes the old object.

This extra re-scan usually does not have a performance impact for
two reasons:

  1. If an object is missing, then typically the re-scan will find a
     new pack, then no more misses will occur.  Or if it truly is
     missing, then our next step is usually to die().

  2. Re-scanning is cheap enough that we do not even notice.

However, these do not always hold. The assumption in (1) is that the
caller is expecting to find the object. This is usually the case,
but the call to `parse_object` in `everything_local` does not follow
this pattern. It is looking to see whether we have objects that the
remote side is advertising, not something we expect to
have. Therefore if we are fetching from a remote which has many refs
pointing to objects we do not have, we may end up re-scanning the
pack directory many times.

Even with this extra re-scanning, the impact is often not noticeable
due to (2); we just readdir() the packs directory and skip any packs
that are already loaded. However, if there are a large number of
packs, even enumerating the directory can be expensive, especially
if we do it repeatedly.

Having this many packs is a good sign the user should run `git gc`,
but it would still be nice to avoid having to scan the directory at
all.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 19:37:30 -08:00
Jeff King
131b8fcbfb fetch: run gc --auto after fetching
We generally try to run "gc --auto" after any commands that
might introduce a large number of new objects. An obvious
place to do so is after running "fetch", which may introduce
new loose objects or packs (depending on the size of the
fetch).

While an active developer repository will probably
eventually trigger a "gc --auto" on another action (e.g.,
git-rebase), there are two good reasons why it is nicer to
do it at fetch time:

  1. Read-only repositories which track an upstream (e.g., a
     continuous integration server which fetches and builds,
     but never makes new commits) will accrue loose objects
     and small packs, but never coalesce them into a more
     efficient larger pack.

  2. Fetching is often already perceived to be slow to the
     user, since they have to wait on the network. It's much
     more pleasant to include a potentially slow auto-gc as
     part of the already-long network fetch than in the
     middle of productive work with git-rebase or similar.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 19:25:38 -08:00
Jeff King
be5c9fb904 logmsg_reencode: lazily load missing commit buffers
Usually a commit that makes it to logmsg_reencode will have
been parsed, and the commit->buffer struct member will be
valid. However, some code paths will free commit buffers
after having used them (for example, the log traversal
machinery will do so to keep memory usage down).

Most of the time this is fine; log should only show a commit
once, and then exits. However, there are some code paths
where this does not work. At least two are known:

  1. A commit may be shown as part of a regular ref, and
     then it may be shown again as part of a submodule diff
     (e.g., if a repo contains refs to both the superproject
     and subproject).

  2. A notes-cache commit may be shown during "log --all",
     and then later used to access a textconv cache during a
     diff.

Lazily loading in logmsg_reencode does not necessarily catch
all such cases, but it should catch most of them. Users of
the commit buffer tend to be either parsing for structure
(in which they will call parse_commit, and either we will
already have parsed, or we will load commit->buffer lazily
there), or outputting (either to the user, or fetching a
part of the commit message via format_commit_message). In
the latter case, we should always be using logmsg_reencode
anyway (and typically we do so via the pretty-print
machinery).

If there are any cases that this misses, we can fix them up
to use logmsg_reencode (or handle them on a case-by-case
basis if that is inappropriate).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:22 -08:00
Jeff King
dd0d388c44 logmsg_reencode: never return NULL
The logmsg_reencode function will return the reencoded
commit buffer, or NULL if reencoding failed or no reencoding
was necessary. Since every caller then ends up checking for NULL
and just using the commit's original buffer, anyway, we can
be a bit more helpful and just return that buffer when we
would have returned NULL.

Since the resulting string may or may not need to be freed,
we introduce a logmsg_free, which checks whether the buffer
came from the commit object or not (callers either
implemented the same check already, or kept two separate
pointers, one to mark the buffer to be used, and one for the
to-be-freed string).

Pushing this logic into logmsg_* simplifies the callers, and
will let future patches lazily load the commit buffer in a
single place.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:21 -08:00
Jeff King
200ebe362c commit: drop useless xstrdup of commit message
When git-commit is asked to reuse a commit message via "-c",
we call read_commit_message, which looks up the commit and
hands back either the re-encoded result, or a copy of the
original. We make a copy in the latter case so that the
ownership semantics of the return value are clear (in either
case, it can be freed).

However, since we return a "const char *", and since the
resulting buffer's lifetime is the same as that of the whole
program, we never bother to free it at all.

Let's just drop the copy. That saves us a copy in the common
case. While it does mean we leak in the re-encode case, it
doesn't matter, since we are relying on program exit to free
the memory anyway.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-26 13:28:19 -08:00
Junio C Hamano
b4cf8db275 push: finishing touches to explain REJECT_ALREADY_EXISTS better
Now that "already exists" errors are given only when a push tries to
update an existing ref in refs/tags/ hierarchy, we can say "the
tag", instead of "the destination reference", and that is far easier
to understand.

Pointed out by Chris Rorvick.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 23:28:50 -08:00
Junio C Hamano
75e5c0dc55 push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
When we push to update an existing ref, if:

 * the object at the tip of the remote is not a commit; or
 * the object we are pushing is not a commit,

it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge".  We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.

If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged.  In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time.  And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage.  As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.

In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.

Introduce new rejection reasons and reword the messages
appropriately.

[jc: with help by Peff on message details]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:23 -08:00
Junio C Hamano
bb9a69694f Merge branch 'as/pre-push-hook'
Add an extra hook so that "git push" that is run without making
sure what is being pushed is sane can be checked and rejected (as
opposed to the user deciding not pushing).

* as/pre-push-hook:
  Add sample pre-push hook script
  push: Add support for pre-push hooks
  hooks: Add function to check if a hook exists
2013-01-23 21:19:25 -08:00
Junio C Hamano
a39b15b4f6 Merge branch 'as/check-ignore'
Add a new command "git check-ignore" for debugging .gitignore
files.

The variable names may want to get cleaned up but that can be done
in-tree.

* as/check-ignore:
  clean.c, ls-files.c: respect encapsulation of exclude_list_groups
  t0008: avoid brace expansion
  add git-check-ignore sub-command
  setup.c: document get_pathspec()
  add.c: extract new die_if_path_beyond_symlink() for reuse
  add.c: extract check_path_for_gitlink() from treat_gitlinks() for reuse
  pathspec.c: rename newly public functions for clarity
  add.c: move pathspec matchers into new pathspec.c for reuse
  add.c: remove unused argument from validate_pathspec()
  dir.c: improve docs for match_pathspec() and match_pathspec_depth()
  dir.c: provide clear_directory() for reclaiming dir_struct memory
  dir.c: keep track of where patterns came from
  dir.c: use a single struct exclude_list per source of excludes

Conflicts:
	builtin/ls-files.c
	dir.c
2013-01-23 21:19:10 -08:00
Jeff King
b3873c336c reflog: use parse_config_key in config callback
This doesn't save any lines, but does keep us from doing
error-prone pointer arithmetic with constants.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-23 12:58:33 -08:00
Jeff King
4d5c6cefd5 help: use parse_config_key for man config
The resulting code ends up about the same length, but it is
a little more self-explanatory. It now explicitly documents
and checks the pre-condition that the incoming var starts
with "man.", and drops the magic offset "4".

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-23 12:58:33 -08:00
Junio C Hamano
772f811398 Merge branch 'mz/reset-misc'
Various 'reset' optimizations and clean-ups, followed by a change
to allow "git reset" to work even on an unborn branch.

* mz/reset-misc:
  reset: update documentation to require only tree-ish with paths
  reset [--mixed]: use diff-based reset whether or not pathspec was given
  reset: allow reset on unborn branch
  reset $sha1 $pathspec: require $sha1 only to be treeish
  reset.c: inline update_index_refresh()
  reset.c: finish entire cmd_reset() whether or not pathspec is given
  reset [--mixed]: only write index file once
  reset.c: move lock, write and commit out of update_index_refresh()
  reset.c: move update_index_refresh() call out of read_from_tree()
  reset.c: replace switch by if-else
  reset: avoid redundant error message
  reset --keep: only write index file once
  reset.c: share call to die_if_unmerged_cache()
  reset.c: extract function for updating {ORIG_,}HEAD
  reset.c: remove unnecessary variable 'i'
  reset.c: extract function for parsing arguments
  reset: don't allow "git reset -- $pathspec" in bare repo
  reset.c: pass pathspec around instead of (prefix, argv) pair
  reset $pathspec: exit with code 0 if successful
  reset $pathspec: no need to discard index
2013-01-22 09:36:41 -08:00
Junio C Hamano
aa0ae51048 Merge branch 'zk/clean-report-failure'
"git clean" states what it is going to remove and then goes on to
remove it, but sometimes it only discovers things that cannot be
removed after recursing into a directory, which makes the output
confusing and even wrong.

* zk/clean-report-failure:
  git-clean: Display more accurate delete messages
2013-01-21 20:15:24 -08:00
Junio C Hamano
68434e2879 Merge branch 'nd/clone-no-separate-git-dir-with-bare'
Forbid a useless combination of options to "git clone".

* nd/clone-no-separate-git-dir-with-bare:
  clone: forbid --bare --separate-git-dir <dir>
2013-01-21 20:15:08 -08:00
Nguyễn Thái Ngọc Duy
0b0ecaac2a grep: avoid accepting ambiguous revision
Unlike other commands that take both revs and pathspecs without "--"
disamiguators only when the boundary is clear, "git grep" treated
what can be interpreted as a rev as-is, without making sure that it
could also have meant a pathspec.  E.g.

    $ git grep -e foo master

when 'master' is in the working tree, should have triggered an
ambiguity error, but it didn't, and searched in the tree of the
commit named by 'master'.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-21 16:57:38 -08:00
Junio C Hamano
28f04f3463 Merge branch 'rt/commit-cleanup-config'
Add a configuration variable to set default clean-up mode other
than "strip".

* rt/commit-cleanup-config:
  commit: make default of "cleanup" option configurable
2013-01-20 17:07:04 -08:00
Junio C Hamano
577f63e781 Merge branch 'ap/log-mailmap'
Teach commands in the "log" family to optionally pay attention to
the mailmap.

* ap/log-mailmap:
  log --use-mailmap: optimize for cases without --author/--committer search
  log: add log.mailmap configuration option
  log: grep author/committer using mailmap
  test: add test for --use-mailmap option
  log: add --use-mailmap option
  pretty: use mailmap to display username and email
  mailmap: add mailmap structure to rev_info and pp
  mailmap: simplify map_user() interface
  mailmap: remove email copy and length limitation
  Use split_ident_line to parse author and committer
  string-list: allow case-insensitive string list
2013-01-20 17:06:53 -08:00
Junio C Hamano
1542d4cdad help: include <common-cmds.h> only in one file
This header not only declares but also defines the contents of the
array that holds the list of command names and help text.  Do not
include it in multiple places to waste text space.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-18 22:35:04 -08:00
Aaron Schrab
ec55559f93 push: Add support for pre-push hooks
Add support for a pre-push hook which can be used to determine if the
set of refs to be pushed is suitable for the target repository.  The
hook is run with two arguments specifying the name and location of the
destination repository.

Information about what is to be pushed is provided by sending lines of
the following form to the hook's standard input:

  <local ref> SP <local sha1> SP <remote ref> SP <remote sha1> LF

If the hook exits with a non-zero status, the push will be aborted.

This will allow the script to determine if the push is acceptable based
on the target repository and branch(es), the commits which are to be
pushed, and even the source branches in some cases.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-18 11:13:22 -08:00
Martin von Zweigbergk
bf44142f54 reset: update documentation to require only tree-ish with paths
When resetting with paths, we no longer require a commit argument, but
only a tree-ish. Update the documentation and synopsis accordingly.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:50:23 -08:00
Junio C Hamano
eff80a9fd9 Allow custom "comment char"
Some users do want to write a line that begin with a pound sign, #,
in their commit log message.  Many tracking system recognise
a token of #<bugid> form, for example.

The support we offer these use cases is not very friendly to the end
users.  They have a choice between

 - Don't do it.  Avoid such a line by rewrapping or indenting; and

 - Use --cleanup=whitespace but remove all the hint lines we add.

Give them a way to set a custom comment char, e.g.

    $ git -c core.commentchar="%" commit

so that they do not have to do either of the two workarounds.

[jc: although I started the topic, all the tests and documentation
updates, many of the call sites of the new strbuf_add_commented_*()
functions, and the change to git-submodule.sh scripted Porcelain are
from Ralf.]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:48:22 -08:00
Adam Spiers
72aeb18772 clean.c, ls-files.c: respect encapsulation of exclude_list_groups
Consumers of the dir.c traversal API should avoid assuming knowledge
of the internal implementation of exclude_list_groups.  Therefore
when adding items to an exclude list, it should be accessed via the
pointer returned from add_exclude_list(), rather than by referencing
a location within dir.exclude_list_groups[EXC_CMDL].

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 09:43:35 -08:00
Martin von Zweigbergk
3fde386a40 reset [--mixed]: use diff-based reset whether or not pathspec was given
Thanks to b65982b (Optimize "diff-index --cached" using cache-tree,
2009-05-20), resetting with paths is much faster than resetting
without paths. Some timings for the linux-2.6 repo to illustrate this
(best of five, warm cache):

        reset       reset .
real    0m0.219s    0m0.080s
user    0m0.140s    0m0.040s
sys     0m0.070s    0m0.030s

These two commands should do the same thing, so instead of having the
user type the trailing " ." to get the faster do_diff_cache()-based
implementation, always use it when doing a mixed reset, with or
without paths (so "git reset $rev" would also be faster).

Timing "git reset" shows that it indeed becomes as fast as
"git reset ." after this patch.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
166ec2e96e reset: allow reset on unborn branch
Some users seem to think, knowingly or not, that being on an unborn
branch is like having a commit with an empty tree checked out, but
when run on an unborn branch, "git reset" currently fails with:

  fatal: Failed to resolve 'HEAD' as a valid ref.

Instead of making users figure out that they should run

 git rm --cached -r .

, let's teach "git reset" without a revision argument, when on an
unborn branch, to behave as if the user asked to reset to an empty
tree. Don't take the analogy with an empty commit too far, though, but
still disallow explictly referring to HEAD in "git reset HEAD".

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
2f328c3d2e reset $sha1 $pathspec: require $sha1 only to be treeish
Resetting with paths does not update HEAD and there is nothing else
that a commit should be needed for. Relax the argument parsing so only
a tree is required.

The sha1 is only passed to read_from_tree(), which already only
requires a tree.

The "rev" variable we pass to run_add_interactive() will resolve to a
tree. This is fine since interactive_reset only needs the parameter to
be a treeish and doesn't use it for display purposes.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
7637df131e reset.c: inline update_index_refresh()
Now that there is only one caller left to the single-line method
update_index_refresh(), inline it.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
3bbf2f20f6 reset.c: finish entire cmd_reset() whether or not pathspec is given
By not returning from inside the "if (pathspec)" block, we can let the
pathspec-aware and pathspec-less code share a bit more, making it
easier to make future changes that should affect both cases. This also
highlights the similarity between read_from_tree() and reset_index().

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
bc41bf422e reset [--mixed]: only write index file once
When doing a mixed reset without paths, the index is locked, read,
reset, and written back as part of the actual reset operation (in
reset_index()). Then, when showing the list of worktree modifications,
we lock the index again, refresh it, and write it.

Change this so we only write the index once, making "git reset" a
little faster. It does mean that the index lock will be held a little
longer, but the difference is small compared to the time spent
refreshing the index.

There is one minor functional difference: We used to say "Could not
write new index file." if the first write failed, and "Could not
refresh index" if the second write failed. Now, we will only use the
first message.

This speeds up "git reset" a little on the linux-2.6 repo (best of
five, warm cache):

        Before      After
real    0m0.239s    0m0.214s
user    0m0.160s    0m0.130s
sys     0m0.070s    0m0.080s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
01a19dfc1a reset.c: move lock, write and commit out of update_index_refresh()
In preparation for the/a following patch, move the locking, writing
and committing of the index file out of update_index_refresh(). The
code duplication caused will soon be taken care of. What remains of
update_index_refresh() is just one line, but it is still called from
two places, so let's leave it for now.

In the process, we expose and fix the minor UI bug that makes us print
"Could not refresh index" when we fail to write the index file when
invoked with a pathspec. Copy the error message from the pathspec-less
codepath ("Could not write new index file.").

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
bf883f3006 reset.c: move update_index_refresh() call out of read_from_tree()
The final part of cmd_reset() essentially looks like:

  if (pathspec) {
    ...
    read_from_tree(...);
  } else {
    ...
    reset_index(...);
    update_index_refresh(...);
    ...
  }

where read_from_tree() internally also calls
update_index_refresh(). Move the call to update_index_refresh() out of
read_from_tree for symmetry with the 'else' block, making
read_from_tree() and reset_index() closer in functionality.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
b489097e1d reset.c: replace switch by if-else
The switch statement towards the end of reset.c is missing case arms
for KEEP and MERGE for no obvious reason, and soon the only non-empty
case arm will be the one for HARD. So let's proactively replace it by
if-else, which will let us move one if statement out without leaving
funny-looking left-overs.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:08 -08:00
Martin von Zweigbergk
1ca38f8586 reset: avoid redundant error message
If writing or committing the new index file fails, we print "Could not
write new index file." followed by "Could not reset index file to
revision $rev.". The first message seems to imply the second, so print
only the first message.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
b7099a06e8 reset --keep: only write index file once
"git reset --keep" calls reset_index_file() twice, first doing a
two-way merge to the target revision, updating the index and worktree,
and then resetting the index. After each call, we write the index
file.

In the unlikely event that the second call to reset_index_file()
fails, the index will have been merged to the target revision, but
HEAD will not be updated, leaving the user with a dirty index.

By moving the locking, writing and committing out of
reset_index_file() and into the caller, we can avoid writing the index
twice, thereby making the sure we don't end up in the half-way reset
state. As a bonus, we speed up "git reset --keep" a little on the
linux-2.6 repo (best of five, warm cache):

        Before      After
real    0m0.315s    0m0.296s
user    0m0.290s    0m0.280s
sys     0m0.020s    0m0.010s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
352f58a57b reset.c: share call to die_if_unmerged_cache()
Use a single condition to guard the call to die_if_unmerged_cache for
both --soft and --keep. This avoids the small distraction of the
precondition check from the logic following it.

Also change an instance of

  if (e)
    err = err || f();

to the almost as short, but clearer

  if (e && !err)
    err = f();

(which is equivalent since we only care whether exit code is 0)

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
7bca0e451b reset.c: extract function for updating {ORIG_,}HEAD
By extracting the code for updating the HEAD and ORIG_HEAD symbolic
references to a separate function, we declutter cmd_reset() a bit and
we make it clear that e.g. the four variables {,sha1_}{,old_}orig are
only used by this code.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
dca48cf520 reset.c: remove unnecessary variable 'i'
Throughout most of parse_args(), the variable 'i' remains at 0. Many
references are still made to the variable even when it could only have
the value 0. This made at least me, who has relatively little
experience with C programming styles, think that parts of the function
was meant to be part of a loop. To avoid such confusion, remove the
variable and also the 'argc' parameter and check for NULL trailing
argv instead.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
39ea722d82 reset.c: extract function for parsing arguments
Declutter cmd_reset() a bit by moving out the argument parsing to its
own function.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
4f4ad3d938 reset: don't allow "git reset -- $pathspec" in bare repo
Running e.g. "git reset ." in a bare repo results in an index file
being created from the HEAD commit. The differences compared to the
index are then printed as usual, but since there is no worktree, it
will appear as if all files are deleted. For example, in a bare clone
of git.git:

  Unstaged changes after reset:
  D       .gitattributes
  D       .gitignore
  D       .mailmap
  ...

This happens because the check for is_bare_repository() happens after
we branch off into read_from_tree() to reset with paths. Fix by moving
the branching point after the check.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
18648e89e7 reset.c: pass pathspec around instead of (prefix, argv) pair
We use the path arguments in two places in reset.c: in
interactive_reset() and read_from_tree(). Both of these call
get_pathspec(), so we pass the (prefix, argv) pair to both
functions. Move the call to get_pathspec() out of these methods, for
two reasons: 1) One argument is simpler than two. 2) It lets us use
the (arguably clearer) "if (pathspec)" in place of "if (i < argc)".

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
d94c5e2fa2 reset $pathspec: exit with code 0 if successful
"git reset $pathspec" currently exits with a non-zero exit code if the
worktree is dirty after resetting, which is inconsistent with reset
without pathspec, and it makes it harder to know whether the command
really failed. Change it to exit with code 0 regardless of whether the
worktree is dirty so that non-zero indicates an error.

This makes the 4 "disambiguation" test cases in t7102 clearer since
they all used to "fail", 3 of which "failed" due to changes in the
work tree. Now only the ambiguous one fails.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:07 -08:00
Martin von Zweigbergk
10746a3616 reset $pathspec: no need to discard index
Since 34110cd (Make 'unpack_trees()' have a separate source and
destination index, 2008-03-06), the index no longer gets clobbered by
do_diff_cache() and we can remove the code for discarding and
re-reading it.

There are two paths to update_index_refresh() from cmd_reset(), but on
both paths, either read_cache() or read_cache_unmerged() will have
been called, so the call to read_cache() in this method is redundant
(although practically free).

This speeds up "git reset -- ." a little on the linux-2.6 repo (best
of five, warm cache):

        Before      After
real    0m0.093s    0m0.080s
user    0m0.040s    0m0.020s
sys     0m0.050s    0m0.050s

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-15 09:38:06 -08:00
Aaron Schrab
5a7da2dca1 hooks: Add function to check if a hook exists
Create find_hook() function to determine if a given hook exists and is
executable.  If it is, the path to the script will be returned,
otherwise NULL is returned.

This encapsulates the tests that are used to check for the existence of
a hook in one place, making it easier to modify those checks if that is
found to be necessary.  This also makes it simple for places that can
use a hook to check if a hook exists before doing, possibly lengthy,
setup work which would be pointless if no such hook is present.

The returned value is left as a static value from get_pathname() rather
than a duplicate because it is anticipated that the return value will
either be used as a boolean, immediately added to an argv_array list
which would result in it being duplicated at that point, or used to
actually run the command without much intervening work.  Callers which
need to hold onto the returned value for a longer time are expected to
duplicate the return value themselves.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-14 09:25:40 -08:00
Zoltan Klinger
f538a91e3c git-clean: Display more accurate delete messages
(1) Only print out the names of the files and directories that got
    actually deleted. Also do not mention that we are not removing
    directories when the user did not ask us to do so with '-d'.
(2) Show ignore message for skipped untracked git repositories.

Consider the following repo layout:

  test.git/
    |-- tracked_dir/
    |     |-- some_tracked_file
    |     |-- some_untracked_file
    |-- tracked_file
    |-- untracked_file
    |-- untracked_foo/
    |     |-- bar/
    |     |     |-- bar.txt
    |     |-- emptydir/
    |     |-- frotz.git/
    |           |-- frotz.tx
    |-- untracked_some.git/
          |-- some.txt

Suppose the user issues 'git clean -fd' from the test.git directory.

When -d option is used and untracked directory 'foo' contains a
subdirectory 'frotz.git' that is managed by a different git repository
therefore it will not be removed.

  $ git clean -fd
  Removing tracked_dir/some_untracked_file
  Removing untracked_file
  Removing untracked_foo/
  Removing untracked_some.git/

The message displayed to the user is slightly misleading. The foo/
directory has not been removed because of foo/frotz.git still exists.
On the other hand the subdirectories 'bar' and 'emptydir' have been
deleted but they're not mentioned anywhere. Also, untracked_some.git
has not been removed either.

This behaviour is the result of the way the deletion of untracked
directories are reported. In the current implementation they are
deleted recursively but only the name of the top most directory is
printed out. The calling function does not know about any
subdirectories that could not be removed during the recursion.

Improve the way the deleted directories are reported back to
the user:
  (1) Create a recursive delete function 'remove_dirs' in builtin/clean.c
      to run in both dry_run and delete modes with the delete logic as
      follows:
        (a) Check if the current directory to be deleted is an untracked
            git repository. If it is and --force --force option is not set
            do not touch this directory, print ignore message, set dir_gone
            flag to false for the caller and return.
        (b) Otherwise for each item in current directory:
              (i)   If current directory cannot be accessed, print warning,
                    set dir_gone flag to false and return.
              (ii)  If the item is a subdirectory recurse into it,
                    check for the returned value of the dir_gone flag.
                    If the subdirectory is gone, add the name of the deleted
                    directory to a list of successfully removed items 'dels'.
                    Else set the dir_gone flag as the current directory
                    cannot be removed because we have at least one subdirectory
                    hanging around.
              (iii) If it is a file try to remove it. If success add the
                    file name to the 'dels' list, else print error and set
                    dir_gone flag to false.
        (c) After we finished deleting all items in the current directory and
            the dir_gone flag is still true, remove the directory itself.
            If failed set the dir_gone flag to false.

        (d) If the current directory cannot be deleted because the dir_gone flag
            has been set to false, print out all the successfully deleted items
            for this directory from the 'dels' list.
        (e) We're done with the current directory, return.

  (2) Modify the cmd_clean() function to:
        (a) call the recursive delete function 'remove_dirs()' for each
            topmost directory it wants to remove
        (b) check for the returned value of dir_gone flag. If it's true
            print the name of the directory as being removed.

Consider the output of the improved version:

  $ git clean -fd
  Removing tracked_dir/some_untracked_file
  Removing untracked_file
  Skipping repository untracked_foo/frotz.git
  Removing untracked_foo/bar
  Removing untracked_foo/emptydir
  Skipping repository untracked_some.git/

Now it displays only the file and directory names that got actually
deleted and shows the name of the untracked git repositories it ignored.

Reported-by: Soren Brinkmann <soren.brinkmann@xilinx.com>

Signed-off-by: Zoltan Klinger <zoltan.klinger@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-14 08:55:36 -08:00
Junio C Hamano
90d0b8a9f0 Merge branch 'jc/blame-no-follow'
Teaches "--no-follow" option to "git blame" to disable its
whole-file rename detection.

* jc/blame-no-follow:
  blame: pay attention to --no-follow
  diff: accept --no-follow option
2013-01-14 08:15:51 -08:00
Junio C Hamano
32e820bdc5 Merge branch 'jl/interrupt-clone-remove-separate-git-dir' into maint
When "git clone --separate-git-dir=$over_there" is interrupted, it
failed to remove the real location of the $GIT_DIR it created.  This
was most visible when interrupting a submodule update.

* jl/interrupt-clone-remove-separate-git-dir:
  clone: support atomic operation with --separate-git-dir
2013-01-14 07:33:49 -08:00
Junio C Hamano
bc60f9f377 Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit' into maint
"git merge --no-edit" computed who were involved in the work done
on the side branch, even though that information is to be discarded
without getting seen in the editor.

* jc/maint-fmt-merge-msg-no-edit-lose-credit:
  merge --no-edit: do not credit people involved in the side branch
2013-01-14 07:33:30 -08:00
Junio C Hamano
7842c44ccb Merge branch 'jc/apply-trailing-blank-removal' into maint
"git apply" misbehaved when fixing whitespace breakages by removing
excess trailing blank lines.

* jc/apply-trailing-blank-removal:
  apply.c:update_pre_post_images(): the preimage can be truncated
2013-01-14 07:33:08 -08:00
Junio C Hamano
c566ea13fd Merge branch 'jc/merge-blobs'
Update the disused merge-tree proof-of-concept code.

* jc/merge-blobs:
  merge-tree: fix d/f conflicts
  merge-tree: add comments to clarify what these functions are doing
  merge-tree: lose unused "resolve_directories"
  merge-tree: lose unused "flags" from merge_list
  Which merge_file() function do you mean?
2013-01-11 18:34:24 -08:00
Junio C Hamano
98294e9875 Merge branch 'jc/format-patch-reroll'
Teach "format-patch" to prefix v4- to its output files for the
fourth iteration of a patch series, to make it easier for the
submitter to keep separate copies for iterations.

* jc/format-patch-reroll:
  format-patch: give --reroll-count a short synonym -v
  format-patch: document and test --reroll-count
  format-patch: add --reroll-count=$N option
  get_patch_filename(): split into two functions
  get_patch_filename(): drop "just-numbers" hack
  get_patch_filename(): simplify function signature
  builtin/log.c: stop using global patch_suffix
  builtin/log.c: drop redundant "numbered_files" parameter from make_cover_letter()
  builtin/log.c: drop unused "numbered" parameter from make_cover_letter()
2013-01-11 18:34:10 -08:00
Junio C Hamano
b663af57c3 Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure' into maint
"git merge" started calling prepare-commit-msg hook like "git
commit" does some time ago, but forgot to pay attention to the exit
status of the hook.

* ap/merge-stop-at-prepare-commit-msg-failure:
  merge: Honor prepare-commit-msg return code
2013-01-11 16:49:01 -08:00
Junio C Hamano
3f4f4cc0da clone: do not export and unexport GIT_CONFIG
Earlier, dc87183 (use GIT_CONFIG only in "git config", not other
programs, 2008-06-30) made sure that the environment variable is
never used outside "git config", but "git clone", after creating a
directory for the new repository and until the init_db() function
populates its .git/ directory, exported the variable for no good
reason.  No hook will run from init_db() and more importantly no
hook can run until init_db() finishes creation of the new
repository, so it cannot be used by any invocation of "git config"
by definition.

Stop doing the useless export/unexport.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11 14:57:10 -08:00
Nguyễn Thái Ngọc Duy
4dcb167fc3 fetch: add --unshallow for turning shallow repo into complete one
The user can do --depth=2147483647 (*) for restoring complete repo
now. But it's hard to remember. Any other numbers larger than the
longest commit chain in the repository would also do, but some
guessing may be involved. Make easy-to-remember --unshallow an alias
for --depth=2147483647.

Make upload-pack recognize this special number as infinite depth. The
effect is essentially the same as before, except that upload-pack is
more efficient because it does not have to traverse to the bottom
anymore.

The chance of a user actually wanting exactly 2147483647 commits
depth, not infinite, on a repository with a history that long, is
probably too small to consider. The client can learn to add or
subtract one commit to avoid the special treatment when that actually
happens.

(*) This is the largest positive number a 32-bit signed integer can
    contain. JGit and older C Git store depth as "int" so both are OK
    with this number. Dulwich does not support shallow clone.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-11 09:09:30 -08:00
Nguyễn Thái Ngọc Duy
95b63f1ebb clone: forbid --bare --separate-git-dir <dir>
The --separate-git-dir option was introduced to make it simple to put
the git directory somewhere outside the worktree, for example when
cloning a repository for use as a submodule.

It was not intended for use when creating a bare repository. In that
case there is no worktree and it is more natural to directly clone the
repository and create a .git file as separate steps:

        git clone --bare /path/to/repo.git bar.git
        printf 'gitdir: bar.git\n' >foo.git

Forbid the combination, making the command easier to explain.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 19:13:17 -08:00
Junio C Hamano
74474a94f2 Merge branch 'sp/shortlog-missing-lf' into maint
* sp/shortlog-missing-lf:
  strbuf_add_wrapped*(): Remove unused return value
  shortlog: fix wrapping lines of wraplen
2013-01-10 14:04:23 -08:00
Junio C Hamano
63d1cf6526 Merge branch 'jl/interrupt-clone-remove-separate-git-dir'
When "git clone --separate-git-dir" is interrupted, we failed to
remove the real location we created the repository.

* jl/interrupt-clone-remove-separate-git-dir:
  clone: support atomic operation with --separate-git-dir
2013-01-10 13:47:30 -08:00
Junio C Hamano
d912b0e44f Merge branch 'as/dir-c-cleanup'
Refactor and generally clean up the directory traversal API
implementation.

* as/dir-c-cleanup:
  dir.c: rename free_excludes() to clear_exclude_list()
  dir.c: refactor is_path_excluded()
  dir.c: refactor is_excluded()
  dir.c: refactor is_excluded_from_list()
  dir.c: rename excluded() to is_excluded()
  dir.c: rename excluded_from_list() to is_excluded_from_list()
  dir.c: rename path_excluded() to is_path_excluded()
  dir.c: rename cryptic 'which' variable to more consistent name
  Improve documentation and comments regarding directory traversal API
  api-directory-listing.txt: update to match code
2013-01-10 13:47:25 -08:00
Junio C Hamano
cf6c52fce8 Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit'
Stop spending cycles to compute information to be placed on
commented lines in "merge --no-edit", which will be discarded
anyway.

* jc/maint-fmt-merge-msg-no-edit-lose-credit:
  merge --no-edit: do not credit people involved in the side branch
2013-01-10 13:46:29 -08:00
Antoine Pelisse
e6bb5f78fb log: add log.mailmap configuration option
Teach "log.mailmap" configuration variable to turn "--use-mailmap"
option on to "git log", "git show" and "git whatchanged".

The "--no-use-mailmap" option from the command line can countermand
the setting.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:09 -08:00
Antoine Pelisse
ea57bc0d41 log: add --use-mailmap option
Add the --use-mailmap option to log commands. It allows to display
names from mailmap file when displaying logs, whatever the format
used.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:08 -08:00
Antoine Pelisse
ea02ffa385 mailmap: simplify map_user() interface
Simplify map_user(), mostly to avoid copies of string buffers. It
also simplifies caller functions.

map_user() directly receive pointers and length from the commit buffer
as mail and name. If mapping of the user and mail can be done, the
pointer is updated to a new location. Lengths are also updated if
necessary.

The caller of map_user() can then copy the new email and name if
necessary.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 12:33:08 -08:00
Ralf Thielow
51fb3a3dfa commit: make default of "cleanup" option configurable
The default of the "cleanup" option in "git commit"
is not configurable. Users who don't want to use the
default have to pass this option on every commit since
there's no way to configure it. This commit introduces
a new config option "commit.cleanup" which can be used
to change the default of the "cleanup" option in
"git commit".

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-10 11:45:02 -08:00
Junio C Hamano
3a2ce79981 Merge branch 'nd/maint-branch-desc-doc'
Teach various forms of "format-patch" command line to identify what
branch the patches are taken from, so that the branch description
is picked up in more cases.

* nd/maint-branch-desc-doc:
  format-patch: pick up branch description when no ref is specified
  format-patch: pick up correct branch name from symbolic ref
  t4014: a few more tests on cover letter using branch description
  branch: delete branch description if it's empty
  config.txt: a few lines about branch.<name>.description
2013-01-09 08:27:09 -08:00
Junio C Hamano
ea12a7d696 Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure'
"git merge" started calling prepare-commit-msg hook like "git
commit" does some time ago, but forgot to pay attention to the exit
status of the hook.  t7505 may want a general clean-up but that is
a different topic.

* ap/merge-stop-at-prepare-commit-msg-failure:
  merge: Honor prepare-commit-msg return code
2013-01-09 08:26:33 -08:00
Antoine Pelisse
3c020bd528 Use split_ident_line to parse author and committer
Currently blame.c::get_acline(), pretty.c::pp_user_info() and
shortlog.c::insert_one_record() are parsing author name, email, time
and tz themselves.

Use ident.c::split_ident_line() for better code reuse.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-07 15:59:32 -08:00
Junio C Hamano
1965f8cdbd Merge branch 'jc/apply-trailing-blank-removal'
Fix to update_pre_post_images() that did not take into account the
possibility that whitespace fix could shrink the preimage and
change the number of lines in it.

* jc/apply-trailing-blank-removal:
  apply.c:update_pre_post_images(): the preimage can be truncated
2013-01-06 22:10:23 -08:00
Adam Spiers
368aa52952 add git-check-ignore sub-command
This works in a similar manner to git-check-attr.

Thanks to Jeff King and Junio C Hamano for the idea:
http://thread.gmane.org/gmane.comp.version-control.git/108671/focus=108815

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:38 -08:00
Adam Spiers
512aaf9453 add.c: extract new die_if_path_beyond_symlink() for reuse
This will be reused by a new git check-ignore command.

Also document validate_pathspec().

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
9d67b61f73 add.c: extract check_path_for_gitlink() from treat_gitlinks() for reuse
Extract the body of the for loop in treat_gitlinks() into a separate
check_path_for_gitlink() function so that it can be reused elsewhere.
This paves the way for a new check-ignore sub-command.

Also document treat_gitlinks().

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
4b78d7bccd pathspec.c: rename newly public functions for clarity
Perform the following function renames to make it explicit that these
pathspec handling functions are for matching against the index, rather
than against a tree or the working directory.

- fill_pathspec_matches() -> add_pathspec_matches_against_index()
- find_used_pathspec() -> find_pathspecs_matching_against_index()

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
6f525e7100 add.c: move pathspec matchers into new pathspec.c for reuse
Extract the following functions from builtin/add.c to pathspec.c, in
preparation for reuse by a new git check-ignore command:

  - fill_pathspec_matches()
  - find_used_pathspec()

The functions being extracted are not changed in any way, except
removal of the 'static' qualifier.

Also add comments documenting these newly public functions,
including clarifications that they operate on the index.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
f8a1113b47 add.c: remove unused argument from validate_pathspec()
The 'argc' argument passed to validate_pathspec() was never used.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
c04318e46a dir.c: keep track of where patterns came from
For exclude patterns read in from files, the filename is stored in the
exclude list, and the originating line number is stored in the
individual exclude (counting starting at 1).

For exclude patterns provided on the command line, a string describing
the source of the patterns is stored in the exclude list, and the
sequence number assigned to each exclude pattern is negative, with
counting starting at -1.  So for example the 2nd pattern provided via
--exclude would be numbered -2.  This allows any future consumers of
that data to easily distinguish between exclude patterns from files
vs. from the CLI.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:26:37 -08:00
Adam Spiers
c082df2453 dir.c: use a single struct exclude_list per source of excludes
Previously each exclude_list could potentially contain patterns
from multiple sources.  For example dir->exclude_list[EXC_FILE]
would typically contain patterns from .git/info/exclude and
core.excludesfile, and dir->exclude_list[EXC_DIRS] could contain
patterns from multiple per-directory .gitignore files during
directory traversal (i.e. when dir->exclude_stack was more than
one item deep).

We split these composite exclude_lists up into three groups of
exclude_lists (EXC_CMDL / EXC_DIRS / EXC_FILE as before), so that each
exclude_list now contains patterns from a single source.  This will
allow us to cleanly track the origin of each pattern simply by adding
a src field to struct exclude_list, rather than to struct exclude,
which would make memory management of the source string tricky in the
EXC_DIRS case where its contents are dynamically generated.

Similarly, by moving the filebuf member from struct exclude_stack to
struct exclude_list, it allows us to track and subsequently free
memory buffers allocated during the parsing of all exclude files,
rather than only tracking buffers allocated for files in the EXC_DIRS
group.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-06 14:25:06 -08:00
Junio C Hamano
9a2c83d24c Merge branch 'cr/push-force-tag-update'
Require "-f" for push to update a tag, even if it is a fast-forward.

* cr/push-force-tag-update:
  push: allow already-exists advice to be disabled
  push: rename config variable for more general use
  push: cleanup push rules comment
  push: clarify rejection of update to non-commit-ish
  push: require force for annotated tags
  push: require force for refs under refs/tags/
  push: flag updates that require force
  push: keep track of "update" state separately
  push: add advice for rejected tag reference
  push: return reject reasons as a bitset
2013-01-05 23:41:34 -08:00
Junio C Hamano
76523cac26 Merge branch 'fc/fast-export-fixes'
Various updates to fast-export used in the context of the remote
helper interface.

* fc/fast-export-fixes:
  fast-export: make sure updated refs get updated
  fast-export: don't handle uninteresting refs
  fast-export: fix comparison in tests
  fast-export: trivial cleanup
  remote-testgit: implement the "done" feature manually
  remote-testgit: report success after an import
  remote-testgit: exercise more features
  remote-testgit: cleanup tests
  remote-testgit: remove irrelevant test
  remote-testgit: remove non-local functionality
  Add new simplified git-remote-testgit
  Rename git-remote-testgit to git-remote-testpy
  remote-helpers: fix failure message
  remote-testgit: fix direction of marks
  fast-export: avoid importing blob marks
2013-01-05 23:41:09 -08:00
Junio C Hamano
990a4fea96 Merge branch 'nd/pathspec-wildcard'
Optimize matching paths with common forms of pathspecs that contain
wildcard characters.

* nd/pathspec-wildcard:
  tree_entry_interesting: do basedir compare on wildcard patterns when possible
  pathspec: apply "*.c" optimization from exclude
  pathspec: do exact comparison on the leading non-wildcard part
  pathspec: save the non-wildcard length part
2013-01-05 23:40:15 -08:00
Jens Lehmann
9be1980bb9 clone: support atomic operation with --separate-git-dir
Since b57fb80a7d (init, clone: support --separate-git-dir for .git file)
git clone supports the --separate-git-dir option to create the git dir
outside the work tree. But when that option is used, the git dir won't be
deleted in case the clone fails like it would be without this option. This
makes clone lose its atomicity as in case of a failure a partly set up git
dir is left behind. A real world example where this leads to problems is
when "git submodule update" fails to clone a submodule and later calls to
"git submodule update" stumble over the partially set up git dir and try
to revive the submodule from there, which then fails with a not very user
friendly error message.

Fix that by updating the junk_git_dir variable (used to remember if and
what git dir should be removed in case of failure) to the new value given
with the --seperate-git-dir option. Also add a test for this to t5600 (and
while at it fix the former last test to not cd into a directory to test
for its existence but use "test -d" instead).

Reported-by: Manlio Perillo <manlio.perillo@gmail.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-05 22:44:11 -08:00
Junio C Hamano
7952ea66e7 format-patch: give --reroll-count a short synonym -v
Accept "-v" as a synonym to "--reroll-count", so that users can say
"git format-patch -v4 master", instead of having to fully spell it
out as "git format-patch --reroll-count=4 master".

As I do not think of a reason why users would want to tell the
command to be "verbose", I think this should be OK.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 16:05:44 -08:00
Antoine Pelisse
3e4141d08c merge: Honor prepare-commit-msg return code
65969d4 (merge: honor prepare-commit-msg hook, 2011-02-14) tried to
make "git commit" and "git merge" consistent, because a merge that
required user assistance has to be concluded with "git commit", but
back then only "git commit" triggered prepare-commit-msg hook.

When it added a call to run the prepare-commit-msg hook, however, it
forgot to check the exit code from the hook like "git commit" does,
and ended up replacing one inconsistency with another.

When prepare-commit-msg hook that is run from "git merge" exits with
a non-zero status, abort the commit.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 09:10:11 -08:00
Nguyễn Thái Ngọc Duy
5ee29aefac format-patch: pick up branch description when no ref is specified
We only try to get branch name in "format-patch origin" case or
similar and not "format-patch -22" where HEAD is automatically
added. Without correct branch name, branch description cannot be
added. Make sure we always get branch name.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 09:01:38 -08:00
Nguyễn Thái Ngọc Duy
20b630aae9 format-patch: pick up correct branch name from symbolic ref
find_branch_name() assumes to take refs/heads/<branch>. But we also
have symbolic refs, such as HEAD, that can point to a valid branch in
refs/heads and do not follow refs/heads/<branch> syntax. Remove the
assumption and apply normal ref resolution. After all it would be
confusing if rev machinery resolves a ref in one way and
find_branch_name() another.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 07:44:07 -08:00
Nguyễn Thái Ngọc Duy
4b5553b5f3 branch: delete branch description if it's empty
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 07:43:12 -08:00
Junio C Hamano
71288e15df Merge branch 'sp/shortlog-missing-lf'
When a line to be wrapped has a solid run of non space characters
whose length exactly is the wrap width, "git shortlog -w" failed to
add a newline after such a line.

* sp/shortlog-missing-lf:
  strbuf_add_wrapped*(): Remove unused return value
  shortlog: fix wrapping lines of wraplen
2013-01-02 10:40:34 -08:00
Junio C Hamano
9bcbb1c218 merge --no-edit: do not credit people involved in the side branch
The credit lines "By" and "Via" to credit authors and committers for
their contributions on the side branch are meant as a hint to the
integrator to decide whom to mention in the log message text.  After
the integrator saves the message in the editor, they are meant to go
away and that is why they are commented out.

When a merge is recorded without editing the generated message,
however, its contents do not go through the normal stripspace()
and these lines are left in the merge.

Stop producing them when we know the merge is going to be recorded
without editing, i.e. when --no-edit is given.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-28 15:44:44 -08:00
Adam Spiers
9013089c4a dir.c: rename path_excluded() to is_path_excluded()
Start adopting clearer names for exclude functions.  This 'is_*'
naming pattern for functions returning booleans was agreed here:

http://thread.gmane.org/gmane.comp.version-control.git/204661/focus=204924

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-28 12:07:45 -08:00
Junio C Hamano
35ffe75831 merge-tree: fix d/f conflicts
The previous commit documented two known breakages revolving around
a case where one side flips a tree into a blob (or vice versa),
where the original code simply gets confused and feeds a mixture of
trees and blobs into either the recursive merge-tree (and recursing
into the blob will fail) or three-way merge (and merging tree contents
together with blobs will fail).

Fix it by feeding trees (and only trees) into the recursive
merge-tree machinery and blobs (and only blobs) into the three-way
content level merge machinery separately; when this happens, the
entire merge has to be marked as conflicting at the structure level.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-26 14:46:15 -08:00
Junio C Hamano
8dd15c6a90 merge-tree: add comments to clarify what these functions are doing
Rename the "branch1" parameter given to resolve() to "ours", to
clarify what is going on.  Also, annotate the unresolved_directory()
function with some comments to show what decisions are made in each
step, and highlight two bugs that need to be fixed.

Add two tests to t4300 to illustrate these bugs.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-26 14:46:15 -08:00
Junio C Hamano
3b8ff51b70 merge-tree: lose unused "resolve_directories"
This option is always set; simplify.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-26 14:45:12 -08:00
Junio C Hamano
b13112fa16 merge-tree: lose unused "flags" from merge_list
Drop the unused field from the structure.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-26 14:44:47 -08:00
Junio C Hamano
5fe10fe80a format-patch: add --reroll-count=$N option
The --reroll-count=$N option, when given a positive integer:

 - Adds " v$N" to the subject prefix specified.  As the default
   subject prefix string is "PATCH", --reroll-count=2 makes it
   "PATCH v2".

 - Prefixes "v$N-" to the names used for output files.  The cover
   letter, whose name is usually 0000-cover-letter.patch, becomes
   v2-0000-cover-letter.patch when given --reroll-count=2.

This allows users to use the same --output-directory for multiple
iterations of the same series, without letting the output for a
newer round overwrite output files from the earlier rounds.  The
user can incorporate materials from earlier rounds to update the
newly minted iteration, and use "send-email v2-*.patch" to send out
the patches belonging to the second iteration easily.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-22 00:21:23 -08:00
Junio C Hamano
d28b5d47ab get_patch_filename(): split into two functions
The function switched between two operating modes depending on the
NULL-ness of its two parameters, as a hacky way to share small part
of implementation, sacrificing cleanliness of the API.

Implement "fmt_output_subject()" function that takes a subject
string and gives the name for the output file, and on top of it,
implement "fmt_output_commit()" function that takes a commit and
gives the name for the output file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 23:55:40 -08:00
Junio C Hamano
38ec23ac89 get_patch_filename(): drop "just-numbers" hack
The function chooses from three operating modes (format using the
subject, the commit, or just number) based on NULL-ness of two of
its parameters, which is an ugly hack for sharing only a bit of
code.

Separate out the "just numbers" part out to the callers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 23:55:40 -08:00
Junio C Hamano
021f2f4c1a get_patch_filename(): simplify function signature
Most functions that emit to a strbuf take the strbuf as their first
parameter; make this function follow suit.

The serial number of the patch being emitted (nr) and suffix used
for patch filename (suffix) are both recorded in rev_info; drop
these separate parameters and pass the rev_info directly.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 23:55:10 -08:00
Junio C Hamano
68cb7b6f85 builtin/log.c: stop using global patch_suffix
The suffix for the output filename is found in rev->patch_suffix; do
not keep using the global that is only used to parse the command
line and configuration.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 23:12:25 -08:00
Junio C Hamano
ce37596c13 builtin/log.c: drop redundant "numbered_files" parameter from make_cover_letter()
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 21:27:38 -08:00
Junio C Hamano
25a751f198 builtin/log.c: drop unused "numbered" parameter from make_cover_letter()
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-21 21:16:51 -08:00
Junio C Hamano
790c83cda9 Merge branch 'maint' 2012-12-13 11:13:56 -08:00
Matthew Daley
bdd478d620 Fix sizeof usage in get_permutations
Currently it gets the size of an otherwise unrelated, unused variable
instead of the expected struct size.

Signed-off-by: Matthew Daley <mattjd@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-13 11:13:44 -08:00
Steffen Prohaska
5b59708268 shortlog: fix wrapping lines of wraplen
A recent commit [1] fixed a off-by-one wrapping error.  As a
side-effect, the conditional in add_wrapped_shortlog_msg() to decide
whether to append a newline needs to be removed.  The function
should always append a newline, which was the case before the
off-by-one fix, because strbuf_add_wrapped_text() never returns a
value of wraplen; when it returns wraplen, the string does not end
with a newline, so this caller needs to add one anyway.

[1] 14e1a4e1ff utf8: fix off-by-one
    wrapping of text

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-11 10:01:44 -08:00
Junio C Hamano
fa2364ec34 Which merge_file() function do you mean?
There are two different static functions and one global function,
all of them called "merge_file()", with different signatures and
purposes.  Rename them all to reduce confusion in "git grep" output:

 * Rename the static one in merge-index to "merge_one_path(const char
   *path)" as that function is about asking an external command to
   resolve conflicts in one path.

 * Rename the global one in merge-file.c that is only used by
   merge-tree to "merge_blobs()", as the function takes three blobs and
   returns the merged result only in-core, without doing anything to
   the filesystem.

 * Rename the one in merge-recursive to "merge_one_file()", just to be
   fair.

Also rename merge-file.[ch] to merge-blobs.[ch].

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-09 23:05:27 -08:00
Junio C Hamano
fff26a6805 Merge branch 'jc/same-encoding' into maint
Various codepaths checked if two encoding names are the same using
ad-hoc code and some of them ended up asking iconv() to convert
between "utf8" and "UTF-8".  The former is not a valid way to spell
the encoding name, but often people use it by mistake, and we
equated them in some but not all codepaths. Introduce a new helper
function to make these codepaths consistent.

* jc/same-encoding:
  reencode_string(): introduce and use same_encoding()
2012-12-07 14:10:56 -08:00
Felipe Contreras
f28e7c904a fast-export: make sure updated refs get updated
When an object has already been exported (and thus is in the marks) it's
flagged as SHOWN, so it will not be exported again, even if in a later
time it's exported through a different ref.

We don't need the object to be exported again, but we want the ref
updated, which doesn't happen.

Since we can't know if a ref was exported or not, let's just assume that
if the commit was marked (flags & SHOWN), the user still wants the ref
updated.

IOW: If it's specified in the command line, it will get updated,
regardless of whether or not the object was marked.

So:

 % git branch test master
 % git fast-export $mark_flags master
 % git fast-export $mark_flags test

Would export 'test' properly.

Additionally, this fixes issues with remote helpers; now they can push
refs whose objects have already been exported, and a few other issues as
well. Update the tests accordingly.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 09:57:16 -08:00
Felipe Contreras
49266e8a11 fast-export: don't handle uninteresting refs
They have been marked as UNINTERESTING for a reason, lets respect
that.  Currently the first ref is handled properly, but not the
rest.  Assuming that all the refs point at the same commit in the
following example:

  % git fast-export master ^uninteresting ^foo ^bar
  reset refs/heads/bar
  from :0

  reset refs/heads/foo
  from :0

  reset refs/heads/uninteresting
  from :0

  % git fast-export ^uninteresting ^foo ^bar master
  reset refs/heads/master
  from :0

  reset refs/heads/bar
  from :0

  reset refs/heads/foo
  from :0

Clearly this is wrong; the negative refs should be ignored.

After this patch:

  % git fast-export ^uninteresting ^foo ^bar master
  # nothing
  % git fast-export master ^uninteresting ^foo ^bar
  # nothing

And even more, it would only happen if the ref is pointing to exactly
the same commit, but not otherwise:

 % git fast-export ^next next
 reset refs/heads/next
 from :0

 % git fast-export ^next next^{commit}
 # nothing
 % git fast-export ^next next~0
 # nothing
 % git fast-export ^next next~1
 # nothing
 % git fast-export ^next next~2
 # nothing

The reason this happens is that before traversing the commits,
fast-export checks if any of the refs point to the same object, and any
duplicated ref gets added to a list in order to issue 'reset' commands
after the traversing. Unfortunately, it's not even checking if the
commit is flagged as UNINTERESTING. The fix of course, is to check it.

However, in order to do it properly we need to get the UNINTERESTING
flag from the command line, not from the commit object, because
"^foo bar" will mark the commit 'bar' uninteresting if foo and bar
points at the same commit.  rev_cmdline_info, which was introduced
exactly to handle this situation, contains all the information we
need for get_tags_and_duplicates(), plus the ref flag. This way the
rest of the positive refs will remain untouched; it's only the
negative ones that change in behavior.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 09:52:08 -08:00
Chris Rorvick
b450568209 push: allow already-exists advice to be disabled
Add 'advice.pushAlreadyExists' option to disable the advice shown when
an update is rejected for a reference that is not allowed to update at
all (verses those that are allowed to fast-forward.)

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 08:04:09 -08:00
Chris Rorvick
1184564eac push: rename config variable for more general use
The 'pushNonFastForward' advice config can be used to squelch several
instances of push-related advice.  Rename it to 'pushUpdateRejected' to
cover other reject scenarios that are unrelated to fast-forwarding.
Retain the old name for compatibility.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-03 08:04:08 -08:00
Chris Rorvick
dbfeddb12e push: require force for refs under refs/tags/
References are allowed to update from one commit-ish to another if the
former is an ancestor of the latter.  This behavior is oriented to
branches which are expected to move with commits.  Tag references are
expected to be static in a repository, though, thus an update to
something under refs/tags/ should be rejected unless the update is
forced.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:44:34 -08:00
Chris Rorvick
b24e6047a8 push: add advice for rejected tag reference
Advising the user to fetch and merge only makes sense if the rejected
reference is a branch.  If none of the rejections are for branches, just
tell the user the reference already exists.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:39:50 -08:00
Chris Rorvick
10643d4ec3 push: return reject reasons as a bitset
Pass all rejection reasons back from transport_push().  The logic is
simpler and more flexible with regard to providing useful feedback.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:37:20 -08:00
Junio C Hamano
16e6e7284f Merge branch 'jk/send-email-sender-prompt'
General clean-ups in various areas, originally written to support a
patch that later turned out to be unneeded.

* jk/send-email-sender-prompt:
  t9001: check send-email behavior with implicit sender
  t: add tests for "git var"
  ident: keep separate "explicit" flags for author and committer
  ident: make user_ident_explicitly_given static
  t7502: factor out autoident prerequisite
  test-lib: allow negation of prerequisites
2012-11-29 12:52:45 -08:00
Junio C Hamano
276d709305 Merge branch 'jl/submodule-rm'
Finishing touches to "git rm $submodule" that removes the working
tree of a submodule.

* jl/submodule-rm:
  Teach rm to remove submodules when given with a trailing '/'
2012-11-29 12:52:30 -08:00
Felipe Contreras
2d242de4fd fast-export: trivial cleanup
Setting 'commit' to 'commit' is a no-op. It might have been there to
avoid a compiler warning, but if so, it was the compiler to blame, and
it's certainly not there any more.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-29 12:18:45 -08:00
Junio C Hamano
77b598b438 Merge branch 'maint'
* maint:
  Fix typo in remote set-head usage
  Makefile: hide stderr of curl-config test
2012-11-26 14:12:07 -08:00
Antoine Pelisse
d1eded46fa Fix typo in remote set-head usage
parenthesis are not matching in `builtin_remote_sethead_usage`
as a square bracket is closing something never opened.

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-26 13:27:45 -08:00
Felipe Contreras
5d3698ffb4 fast-export: avoid importing blob marks
We want to be able to import, and then export, using the same marks, so
that we don't push things that the other side already received.

Unfortunately, fast-export doesn't store blobs in the marks, but
fast-import does. This creates a mismatch when fast export is reusing a
mark that was previously stored by fast-import.

There is no point in one tool saving blobs, and the other not, but for
now let's just check in fast-export that the objects are indeed commits.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-26 11:05:12 -08:00
Junio C Hamano
5956732ebb Merge branch 'jk/checkout-out-of-unborn' into maint
* jk/checkout-out-of-unborn:
  checkout: print a message when switching unborn branches
2012-11-25 18:35:50 -08:00
Junio C Hamano
ccf1bb3ab6 Merge branch 'cn/config-missing-path' into maint
* cn/config-missing-path:
  config: don't segfault when given --path with a missing value
2012-11-25 18:35:46 -08:00
Jens Lehmann
53e4c5dcab Teach rm to remove submodules when given with a trailing '/'
Doing a "git rm submod/" on a submodule results in an error:
	fatal: pathspec 'submod/' did not match any files
This is really inconvenient as e.g. using TAB completion in a shell on a
submodule automatically adds the trailing '/' when it completes the path
of the submodule directory. The user has then to remove the '/' herself to
make a "git rm" succeed. Doing a "git rm -r somedir/" is working fine, so
there is no reason why that shouldn't work for submodules too.

Teach git rm to not error out when a '/' is appended to the path of a
submodule. Achieve this by chopping off trailing slashes from the path
names given if they represent directories. Add tests to make sure that
logic only applies to directories and not to files.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-23 18:35:15 -08:00
Junio C Hamano
2739889c98 Merge branch 'jk/config-ignore-duplicates'
Drop duplicate detection from "git-config --get"; this lets it
better match the internal config callbacks, which clears up some
corner cases with includes.

* jk/config-ignore-duplicates:
  builtin/config.c: Fix a sparse warning
  git-config: use git_config_with_options
  git-config: do not complain about duplicate entries
  git-config: collect values instead of immediately printing
  git-config: fix regexp memory leaks on error conditions
  git-config: remove memory leak of key regexp
  t1300: test "git config --get-all" more thoroughly
  t1300: remove redundant test
  t1300: style updates
2012-11-21 13:16:44 -08:00
Junio C Hamano
9cfe5f4be3 Merge branch 'jk/checkout-out-of-unborn'
* jk/checkout-out-of-unborn:
  checkout: print a message when switching unborn branches
2012-11-20 10:43:18 -08:00
Junio C Hamano
0f76f97676 Merge branch 'cn/config-missing-path'
"git config --path $key" segfaulted on "[section] key" (a boolean
"true" spelled without "=", not "[section] key = true").

* cn/config-missing-path:
  config: don't segfault when given --path with a missing value
2012-11-20 10:40:46 -08:00
Junio C Hamano
3a2c082383 Merge branch 'mg/replace-resolve-delete'
Be more user friendly to people using "git replace -d".

* mg/replace-resolve-delete:
  replace: parse revision argument for -d
2012-11-20 10:38:32 -08:00
Junio C Hamano
10022a6d02 Merge branch 'kb/preload-index-more'
Use preloadindex in more places, which has a nice speedup on systems
with slow stat calls (and even on Linux).

* kb/preload-index-more:
  update-index/diff-index: use core.preloadindex to improve performance
2012-11-20 10:32:10 -08:00
Nguyễn Thái Ngọc Duy
170260ae90 pathspec: save the non-wildcard length part
We mark pathspec with wildcards with the field use_wildcard. We
could do better by saving the length of the non-wildcard part, which
can be used for optimizations such as f9f6e2c (exclude: do strcmp as
much as possible before fnmatch - 2012-06-07).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-19 13:08:28 -08:00
Junio C Hamano
3a9866919c Merge branch 'rs/branch-del-symref' into maint
A symbolic ref refs/heads/SYM was not correctly removed with "git
branch -d SYM"; the command removed the ref pointed by SYM instead.

* rs/branch-del-symref:
  branch: show targets of deleted symrefs, not sha1s
  branch: skip commit checks when deleting symref branches
  branch: delete symref branch, not its target
  branch: factor out delete_branch_config()
  branch: factor out check_branch_commit()
2012-11-18 19:32:58 -08:00
Junio C Hamano
dca5ed5f5b Merge branch 'nd/grep-true-path' into maint
"git grep -e pattern <tree>" asked the attribute system to read
"<tree>:.gitattributes" file in the working tree, which was
nonsense.

* nd/grep-true-path:
  grep: stop looking at random places for .gitattributes
2012-11-18 19:32:30 -08:00
Carlos Martín Nieto
962c38eedd config: don't segfault when given --path with a missing value
When given a variable without a value, such as '[section] var' and
asking git-config to treat it as a path, git_config_pathname returns
an error and doesn't modify its output parameter. show_config assumes
that the call is always successful and sets a variable to indicate
that vptr should be freed. In case of an error however, trying to do
this will cause the program to be killed, as it's pointing to memory
in the stack.

Detect the error and return immediately to avoid freeing or accessing
the uninitialed memory in the stack.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-15 18:12:17 -08:00
Jeff King
d6991ceedc ident: keep separate "explicit" flags for author and committer
We keep track of whether the user ident was given to us
explicitly, or if we guessed at it from system parameters
like username and hostname. However, we kept only a single
variable. This covers the common cases (because the author
and committer will usually come from the same explicit
source), but can miss two cases:

  1. GIT_COMMITTER_* is set explicitly, but we fallback for
     GIT_AUTHOR. We claim the ident is explicit, even though
     the author is not.

  2. GIT_AUTHOR_* is set and we ask for author ident, but
     not committer ident. We will claim the ident is
     implicit, even though it is explicit.

This patch uses two variables instead of one, updates both
when we set the "fallback" values, and updates them
individually when we read from the environment.

Rather than keep user_ident_sufficiently_given as a
compatibility wrapper, we update the only two callers to
check the committer_ident, which matches their intent and
what was happening already.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-15 17:47:24 -08:00
Jeff King
afa8c07a26 checkout: print a message when switching unborn branches
When we switch to a new branch using checkout, we usually output a
message indicating what happened. However, when we switch from an unborn
branch to a new branch, we do not print anything, which may leave the
user wondering what happened.

The reason is that the unborn branch is a special case (see abe1998),
and does not follow the usual switch_branches code path. Let's add a
similar informational message to the special case to match the usual
code path.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-15 17:36:26 -08:00
Junio C Hamano
4ad4fce63a Merge branch 'jc/prettier-pretty-note'
Emit the notes attached to the commit in "format-patch --notes"
output after three-dashes.

* jc/prettier-pretty-note:
  format-patch: add a blank line between notes and diffstat
  Doc User-Manual: Patch cover letter, three dashes, and --notes
  Doc format-patch: clarify --notes use case
  Doc notes: Include the format-patch --notes option
  Doc SubmittingPatches: Mention --notes option after "cover letter"
  Documentation: decribe format-patch --notes
  format-patch --notes: show notes after three-dashes
  format-patch: append --signature after notes
  pretty_print_commit(): do not append notes message
  pretty: prepare notes message at a centralized place
  format_note(): simplify API
  pretty: remove reencode_commit_message()
2012-11-15 10:25:05 -08:00
Junio C Hamano
6b8731258d Merge branch 'jc/same-encoding'
Various codepaths checked if two encoding names are the same using
ad-hoc code and some of them ended up asking iconv() to convert
between "utf8" and "UTF-8".  The former is not a valid way to spell
the encoding name, but often people use it by mistake, and we
equated them in some but not all codepaths. Introduce a new helper
function to make these codepaths consistent.

* jc/same-encoding:
  reencode_string(): introduce and use same_encoding()

Conflicts:
	builtin/mailinfo.c
2012-11-15 10:24:05 -08:00
Junio C Hamano
b398fcc262 Merge branch 'jh/symbolic-ref-d'
Add "symbolic-ref -d SYM" to delete a symbolic ref SYM.

It is already possible to remove a symbolic ref with "update-ref -d
--no-deref", but it may be a good addition for completeness.

* jh/symbolic-ref-d:
  git symbolic-ref --delete $symref
2012-11-15 10:23:51 -08:00
Michael J Gruber
9dfc36841b replace: parse revision argument for -d
'git replace' parses the revision arguments when it creates replacements
(so that a sha1 can be abbreviated, e.g.) but not when deleting
replacements.

Make it parse the argument to 'replace -d' in the same way.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-13 08:34:14 -05:00
Jeff King
19fb613695 Merge branch 'nd/builtin-to-libgit'
Code cleanups so that libgit.a does not depend on anything in the
builtin/ directory.

* nd/builtin-to-libgit:
  fetch-pack: move core code to libgit.a
  fetch-pack: remove global (static) configuration variable "args"
  send-pack: move core code to libgit.a
  Move setup_diff_pager to libgit.a
  Move print_commit_list to libgit.a
  Move estimate_bisect_steps to libgit.a
  Move try_merge_command and checkout_fast_forward to libgit.a
2012-11-09 12:51:06 -05:00
Junio C Hamano
0e18bcd5e9 reencode_string(): introduce and use same_encoding()
Callers of reencode_string() that re-encodes a string from one
encoding to another all used ad-hoc way to bypass the case where the
input and the output encodings are the same.  Some did strcmp(),
some did strcasecmp(), yet some others when converting to UTF-8 used
is_encoding_utf8().

Introduce same_encoding() helper function to make these callers use
the same logic.  Notably, is_encoding_utf8() has a work-around for
common misconfiguration to use "utf8" to name UTF-8 encoding, which
does not match "UTF-8" hence strcasecmp() would not consider the
same.  Make use of it in this helper function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-04 08:10:33 -05:00
Karsten Blees
7349afd20e update-index/diff-index: use core.preloadindex to improve performance
'update-index --refresh' and 'diff-index' (without --cached) don't honor
the core.preloadindex setting yet. Porcelain commands using these (such as
git [svn] rebase) suffer from this, especially on Windows.

Use read_cache_preload to improve performance.

Additionally, in builtin/diff.c, don't preload index status if we don't
access the working copy (--cached).

Results with msysgit on WebKit repo (2GB in 200k files):

                | update-index | diff-index | rebase
----------------+--------------+------------+---------
msysgit-v1.8.0  |       9.157s |    10.536s | 42.791s
+ preloadindex  |       9.157s |    10.536s | 28.725s
+ this patch    |       2.329s |     2.752s | 15.152s
+ fscache [1]   |       0.731s |     1.171s |  8.877s

[1] https://github.com/kblees/git/tree/kb/fscache-v3

Thanks-to: Albert Krawczyk <pro-logic@optusnet.com.au>
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-02 11:38:29 -04:00
Jeff King
9c50374497 Merge branch 'rs/branch-del-symref'
A symbolic ref refs/heads/SYM was not correctly removed with
"git branch -d SYM"; the command removed the ref pointed by
SYM instead.

* rs/branch-del-symref:
  branch: show targets of deleted symrefs, not sha1s
  branch: skip commit checks when deleting symref branches
  branch: delete symref branch, not its target
  branch: factor out delete_branch_config()
  branch: factor out check_branch_commit()
2012-10-29 04:15:04 -04:00
Jeff King
eeb2535f5a Merge branch 'nd/status-long'
Allow an earlier "--short" option on the command line to be
countermanded with the "--long" option for "git status" and "git
commit".

* nd/status-long:
  status: add --long output format option
2012-10-29 04:14:58 -04:00
Jeff King
e034d1bb92 Merge branch 'nd/grep-true-path'
"git grep -e pattern <tree>" asked the attribute system to read
"<tree>:.gitattributes" file in the working tree, which was
nonsense.

* nd/grep-true-path:
  grep: stop looking at random places for .gitattributes
2012-10-29 04:13:16 -04:00
Jeff King
d2f4469b13 Merge branch 'jc/grep-pcre-loose-ends'
"git log -F -E --grep='<ere>'" failed to use the given <ere>
pattern as extended regular expression, and instead looked for the
string literally.  The early part of this series is a fix for it;
the latter part teaches log to respect the grep.* configuration.

* jc/grep-pcre-loose-ends:
  log: honor grep.* configuration
  log --grep: accept --basic-regexp and --perl-regexp
  log --grep: use the same helper to set -E/-F options as "git grep"
  revisions: initialize revs->grep_filter using grep_init()
  grep: move pattern-type bits support to top-level grep.[ch]
  grep: move the configuration parsing logic to grep.[ch]
  builtin/grep.c: make configuration callback more reusable
2012-10-29 04:12:15 -04:00
Jeff King
d21240fafa Merge branch 'jl/submodule-rm'
"git rm submodule" cannot blindly remove a submodule directory as
its working tree may have local changes, and worse yet, it may even
have its repository embedded in it.  Teach it some special cases
where it is safe to remove a submodule, specifically, when there is
no local changes in the submodule working tree, and its repository
is not embedded in its working tree but is elsewhere and uses the
gitfile mechanism to point at it.

* jl/submodule-rm:
  submodule: teach rm to remove submodules unless they contain a git directory
2012-10-29 04:12:07 -04:00
Nguyễn Thái Ngọc Duy
745f7a8cac fetch-pack: move core code to libgit.a
fetch_pack() is used by transport.c, part of libgit.a while it stays
in builtin/fetch-pack.c. Move it to fetch-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:40:29 -04:00
Nguyễn Thái Ngọc Duy
f8eb3036d0 fetch-pack: remove global (static) configuration variable "args"
This helps removes the hack in fetch_pack() that copies my_args to args.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
f5d942e1ed send-pack: move core code to libgit.a
send_pack() is used by transport.c, part of libgit.a while it stays in
builtin/send-pack.c. Move it to send-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
4914c9629c Move setup_diff_pager to libgit.a
This is used by diff-no-index.c, part of libgit.a while it stays in
builtin/diff.c. Move it to diff.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.

While at it, move check_pager from git.c to pager.c. It makes more
sense there and pager.c is also part of libgit.a

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
efc7df454e Move print_commit_list to libgit.a
This is used by bisect.c, part of libgit.a while it stays in
builtin/rev-list.c. Move it to commit.c so that we won't get undefined
reference if a program that uses libgit.a happens to pull it in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
c43cb38612 Move estimate_bisect_steps to libgit.a
This function is used by bisect.c, part of libgit.a while
estimate_bisect_steps stays in builtin/rev-list.c. Move it to bisect.a
so we won't have undefine reference if a standalone program that uses
libgit.a happens to pull it in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
db699a8a1f Move try_merge_command and checkout_fast_forward to libgit.a
These functions are called in sequencer.c, which is part of
libgit.a. This makes libgit.a potentially require builtin/merge.c for
external git commands.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Ramsay Jones
5ba1a8a735 builtin/config.c: Fix a sparse warning
Sparse issues an "Using plain integer as NULL pointer" warning while
checking a 'struct strbuf_list' initializer expression. The initial
field of the struct has pointer type, but the initializer expression
is given as '{0}'. In order to suppress the warning, we simply replace
the initializer with '{NULL}'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 01:48:06 -04:00
Jeff King
315ea32f1b Merge branch 'jk/peel-ref'
Speeds up "git upload-pack" (what is invoked by "git fetch" on the
other side of the connection) by reducing the cost to advertise the
branches and tags that are available in the repository.

* jk/peel-ref:
  upload-pack: use peel_ref for ref advertisements
  peel_ref: check object type before loading
  peel_ref: do not return a null sha1
  peel_ref: use faster deref_tag_noverify
2012-10-25 06:42:27 -04:00