Commit Graph

494 Commits

Author SHA1 Message Date
Junio C Hamano
3c548de378 Merge branch 'sb/submodule-blanket-recursive'
Many commands learned to pay attention to submodule.recurse
configuration.

* sb/submodule-blanket-recursive:
  builtin/fetch.c: respect 'submodule.recurse' option
  builtin/push.c: respect 'submodule.recurse' option
  builtin/grep.c: respect 'submodule.recurse' option
  Introduce 'submodule.recurse' option for worktree manipulators
  submodule loading: separate code path for .gitmodules and config overlay
  reset/checkout/read-tree: unify config callback for submodule recursion
  submodule test invocation: only pass additional arguments
  submodule recursing: do not write a config variable twice
2017-06-13 13:47:07 -07:00
Stefan Beller
046b48239e Introduce 'submodule.recurse' option for worktree manipulators
Any command that understands '--recurse-submodules' can have its
default changed to true, by setting the new 'submodule.recurse'
option.

This patch includes read-tree/checkout/reset for working tree
manipulating commands. Later patches will cover other commands.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Stefan Beller
d7a3803f9e reset/checkout/read-tree: unify config callback for submodule recursion
The callback function is essentially duplicated 3 times. Remove all
of them and offer a new callback function, that lives in submodule.c

By putting the callback function there, we no longer need the function
'set_config_update_recurse_submodules', nor duplicate the global variable
in each builtin as well as submodule.c

In the three builtins we have different 2 ways how to load the .gitmodules
and config file, which are slightly different. git-checkout has to load
the submodule config all the time due to 23b4c7bcc5 (checkout: Use
submodule.*.ignore settings from .git/config and .gitmodules, 2010-08-28)

git-reset and git-read-tree do not respect these diff settings, so loading
the submodule configuration is optional. Also put that into submodule.c
for code deduplication.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30 14:28:53 +09:00
Stefan Beller
58b75bd6db submodule recursing: do not write a config variable twice
The command line option for '--recurse-submodules' is implemented
using an OPTION_CALLBACK, which takes both the callback (that sets
the file static global variable) as well as passes the same file
static global variable to the option parsing machinery to assign it.
This is fixed in this commit by passing NULL as the variable. The
callback sets it instead

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30 14:28:53 +09:00
Junio C Hamano
e6381080a7 Merge branch 'ja/do-not-ask-needless-questions'
Git sometimes gives an advice in a rhetorical question that does
not require an answer, which can confuse new users and non native
speakers.  Attempt to rephrase them.

* ja/do-not-ask-needless-questions:
  git-filter-branch: be more direct in an error message
  read-tree -m: make error message for merging 0 trees less smart aleck
  usability: don't ask questions if no reply is required
2017-05-29 12:34:48 +09:00
Junio C Hamano
849e671b52 Merge branch 'js/plug-leaks'
Fix memory leaks pointed out by Coverity (and people).

* js/plug-leaks: (26 commits)
  checkout: fix memory leak
  submodule_uses_worktrees(): plug memory leak
  show_worktree(): plug memory leak
  name-rev: avoid leaking memory in the `deref` case
  remote: plug memory leak in match_explicit()
  add_reflog_for_walk: avoid memory leak
  shallow: avoid memory leak
  line-log: avoid memory leak
  receive-pack: plug memory leak in update()
  fast-export: avoid leaking memory in handle_tag()
  mktree: plug memory leaks reported by Coverity
  pack-redundant: plug memory leak
  setup_discovered_git_dir(): plug memory leak
  setup_bare_git_dir(): help static analysis
  split_commit_in_progress(): simplify & fix memory leak
  checkout: fix memory leak
  cat-file: fix memory leak
  mailinfo & mailsplit: check for EOF while parsing
  status: close file descriptor after reading git-rebase-todo
  difftool: address a couple of resource/memory leaks
  ...
2017-05-29 12:34:44 +09:00
Junio C Hamano
6b526ced6f Merge branch 'bc/object-id'
Conversion from uchar[20] to struct object_id continues.

* bc/object-id: (53 commits)
  object: convert parse_object* to take struct object_id
  tree: convert parse_tree_indirect to struct object_id
  sequencer: convert do_recursive_merge to struct object_id
  diff-lib: convert do_diff_cache to struct object_id
  builtin/ls-tree: convert to struct object_id
  merge: convert checkout_fast_forward to struct object_id
  sequencer: convert fast_forward_to to struct object_id
  builtin/ls-files: convert overlay_tree_on_cache to object_id
  builtin/read-tree: convert to struct object_id
  sha1_name: convert internals of peel_onion to object_id
  upload-pack: convert remaining parse_object callers to object_id
  revision: convert remaining parse_object callers to object_id
  revision: rename add_pending_sha1 to add_pending_oid
  http-push: convert process_ls_object and descendants to object_id
  refs/files-backend: convert many internals to struct object_id
  refs: convert struct ref_update to use struct object_id
  ref-filter: convert some static functions to struct object_id
  Convert struct ref_array_item to struct object_id
  Convert the verify_pack callback to struct object_id
  Convert lookup_tag to struct object_id
  ...
2017-05-29 12:34:43 +09:00
Junio C Hamano
e40c0f4288 Merge branch 'rs/checkout-am-fix-unborn'
A few codepaths in "checkout" and "am" working on an unborn branch
tried to access an uninitialized piece of memory.

* rs/checkout-am-fix-unborn:
  am: check return value of resolve_refdup before using hash
  checkout: check return value of resolve_refdup before using hash
2017-05-23 13:46:05 +09:00
Jean-Noel Avila
6c48686263 usability: don't ask questions if no reply is required
There has been a bug report by a corporate user that stated that
"spelling mistake of stash followed by a yes prints character 'y'
infinite times."

This analysis was false. When the spelling of a command contains
errors, the git program tries to help the user by providing candidates
which are close to the unexisting command. E.g Git prints the
following:

        git: 'stahs' is not a git command. See 'git --help'.
        Did you mean this?

        stash

and then exits.

The problem with this hint is that it is not formally indicated as an
hint and the user is in fact encouraged to reply to the question,
whereas the Git command is already finished.

The user was unlucky enough that it was the command he was looking
for, and replied "yes" on the command line, effectively launching the
`yes` program.

The initial error is that the Git programs, when launched in
command-line mode (without interaction) must not ask questions,
because these questions would normally require a user input as a reply
that they won't handle indeed. That's a source of confusion on UX
level.

To improve the general usability of the Git suite, the following rule
was applied:

if the sentence
 * appears in a non-interactive session
 * is printed last before exit
 * is a question addressing the user ("you")

the sentence is turned into affirmative and proposes the option.

The basic rewording of the question sentences has been extended to
other spots found in the source.

Requested at https://github.com/git/git-scm.com/issues/999 by rpai1

Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-12 15:18:13 +09:00
Junio C Hamano
443a12f37b checkout: fix memory leak
When "git checkout -m" does an in-core three-way merge to carry
local modifications forward to check out a different branch, the
code forgot to free the updated contents it has in-core.

Noticed-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 21:12:15 -07:00
brian m. carlson
a9dbc17910 tree: convert parse_tree_indirect to struct object_id
Convert parse_tree_indirect to take a pointer to struct object_id.
Update all the callers.  This transformation was achieved using the
following semantic patch and manual updates to the declaration and
definition.  Update builtin/checkout.c manually as well, since it uses a
ternary expression not handled by the semantic patch.

@@
expression E1;
@@
- parse_tree_indirect(E1.hash)
+ parse_tree_indirect(&E1)

@@
expression E1;
@@
- parse_tree_indirect(E1->hash)
+ parse_tree_indirect(E1)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:58 +09:00
brian m. carlson
a58a1b01ff revision: rename add_pending_sha1 to add_pending_oid
Rename this function and convert it to take a pointer to struct
object_id.

This is a prerequisite for converting get_reference, which is needed to
convert parse_object.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:58 +09:00
brian m. carlson
bc83266abe Convert lookup_commit* to struct object_id
Convert lookup_commit, lookup_commit_or_die,
lookup_commit_reference, and lookup_commit_reference_gently to take
struct object_id arguments.

Introduce a temporary in parse_object buffer in order to convert this
function.  This is required since in order to convert parse_object and
parse_object_buffer, lookup_commit_reference_gently and
lookup_commit_or_die would need to be converted.  Not introducing a
temporary would therefore require that lookup_commit_or_die take a
struct object_id *, but lookup_commit would take unsigned char *,
leaving a confusing and hard-to-use interface.

parse_object_buffer will lose this temporary in a later patch.

This commit was created with manual changes to commit.c, commit.h, and
object.c, plus the following semantic patch:

@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1.hash, E2)
+ lookup_commit_reference_gently(&E1, E2)

@@
expression E1, E2;
@@
- lookup_commit_reference_gently(E1->hash, E2)
+ lookup_commit_reference_gently(E1, E2)

@@
expression E1;
@@
- lookup_commit_reference(E1.hash)
+ lookup_commit_reference(&E1)

@@
expression E1;
@@
- lookup_commit_reference(E1->hash)
+ lookup_commit_reference(E1)

@@
expression E1;
@@
- lookup_commit(E1.hash)
+ lookup_commit(&E1)

@@
expression E1;
@@
- lookup_commit(E1->hash)
+ lookup_commit(E1)

@@
expression E1, E2;
@@
- lookup_commit_or_die(E1.hash, E2)
+ lookup_commit_or_die(&E1, E2)

@@
expression E1, E2;
@@
- lookup_commit_or_die(E1->hash, E2)
+ lookup_commit_or_die(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:57 +09:00
Johannes Schindelin
514e803944 checkout: fix memory leak
This change addresses part of the NEEDSWORK comment above the code,
therefore the comment needs to be adjusted, too.

Discovered via Coverity.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 12:18:19 +09:00
René Scharfe
79e913c24a checkout: check return value of resolve_refdup before using hash
If resolve_refdup() fails it returns NULL and possibly leaves its hash
output parameter untouched.  Make sure to use it only if the function
succeeded, in order to avoid accessing uninitialized memory.

Found with t/t2011-checkout-invalid-head.sh --valgrind.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 11:12:09 +09:00
Jeff King
7f897b6f17 avoid using fixed PATH_MAX buffers for refs
Many functions which handle refs use a PATH_MAX-sized buffer
to do so. This is mostly reasonable as we have to write
loose refs into the filesystem, and at least on Linux the 4K
PATH_MAX is big enough that nobody would care. But:

  1. The static PATH_MAX is not always the filesystem limit.

  2. On other platforms, PATH_MAX may be much smaller.

  3. As we move to alternate ref storage, we won't be bound
     by filesystem limits.

Let's convert these to heap buffers so we don't have to
worry about truncation or size limits.

We may want to eventually constrain ref lengths for sanity
and to prevent malicious names, but we should do so
consistently across all platforms, and in a central place
(like the ref code).

Signed-off-by: Jeff King <peff@peff.net>
2017-03-30 14:59:50 -07:00
Junio C Hamano
e394fa01d6 Merge branch 'sb/checkout-recurse-submodules'
"git checkout" is taught the "--recurse-submodules" option.

* sb/checkout-recurse-submodules:
  builtin/read-tree: add --recurse-submodules switch
  builtin/checkout: add --recurse-submodules switch
  entry.c: create submodules when interesting
  unpack-trees: check if we can perform the operation for submodules
  unpack-trees: pass old oid to verify_clean_submodule
  update submodules: add submodule_move_head
  submodule.c: get_super_prefix_or_empty
  update submodules: move up prepare_submodule_repo_env
  submodules: introduce check to see whether to touch a submodule
  update submodules: add a config option to determine if submodules are updated
  update submodules: add submodule config parsing
  make is_submodule_populated gently
  lib-submodule-update.sh: define tests for recursing into submodules
  lib-submodule-update.sh: replace sha1 by hash
  lib-submodule-update: teach test_submodule_content the -C <dir> flag
  lib-submodule-update.sh: do not use ./. as submodule remote
  lib-submodule-update.sh: reorder create_lib_submodule_repo
  submodule--helper.c: remove duplicate code
  connect_work_tree_and_git_dir: safely create leading directories
2017-03-28 14:05:58 -07:00
Junio C Hamano
41534b626e Merge branch 'jk/interpret-branch-name' into maint
"git branch @" created refs/heads/@ as a branch, and in general the
code that handled @{-1} and @{upstream} was a bit too loose in
disambiguating.

* jk/interpret-branch-name:
  checkout: restrict @-expansions when finding branch
  strbuf_check_ref_format(): expand only local branches
  branch: restrict @-expansions when deleting
  t3204: test git-branch @-expansion corner cases
  interpret_branch_name: allow callers to restrict expansions
  strbuf_branchname: add docstring
  strbuf_branchname: drop return value
  interpret_branch_name: move docstring to header file
  interpret_branch_name(): handle auto-namelen for @{-1}
2017-03-28 13:52:22 -07:00
Stefan Beller
1fc458d958 builtin/checkout: add --recurse-submodules switch
This exposes a flag to recurse into submodules
in builtin/checkout making use of the code implemented
in prior patches.

A new failure mode is introduced in the submodule
update library, as the directory/submodule conflict
is not solved in prior patches.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-16 14:07:16 -07:00
Junio C Hamano
c809496c97 Merge branch 'jk/interpret-branch-name'
"git branch @" created refs/heads/@ as a branch, and in general the
code that handled @{-1} and @{upstream} was a bit too loose in
disambiguating.

* jk/interpret-branch-name:
  checkout: restrict @-expansions when finding branch
  strbuf_check_ref_format(): expand only local branches
  branch: restrict @-expansions when deleting
  t3204: test git-branch @-expansion corner cases
  interpret_branch_name: allow callers to restrict expansions
  strbuf_branchname: add docstring
  strbuf_branchname: drop return value
  interpret_branch_name: move docstring to header file
  interpret_branch_name(): handle auto-namelen for @{-1}
2017-03-14 15:23:18 -07:00
Jeff King
fd4692ff70 checkout: restrict @-expansions when finding branch
When we parse "git checkout $NAME", we try to interpret
$NAME as a local branch-name. If it is, then we point HEAD
to that branch. Otherwise, we detach the HEAD at whatever
commit $NAME points to.

We do the interpretation by calling strbuf_branchname(), and
then blindly sticking "refs/heads/" on the front. This leads
to nonsense results when expansions like "@{upstream}" or
"@" point to something besides a local branch. We end up
with a local branch name like "refs/heads/origin/master" or
"refs/heads/HEAD".

Normally this has no user-visible effect because those
branches don't exist, and so we fallback to feeding the
result to get_sha1(), which resolves them correctly.

But as the new test in t3204 shows, there are corner cases
where the effect is observable, and we check out the wrong
local branch rather than detaching to the correct one.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-02 11:05:04 -08:00
Jeff King
0e9f62dab9 interpret_branch_name: allow callers to restrict expansions
The interpret_branch_name() function converts names like
@{-1} and @{upstream} into branch names. The expanded ref
names are not fully qualified, and may be outside of the
refs/heads/ namespace (e.g., "@" expands to "HEAD", and
"@{upstream}" is likely to be in "refs/remotes/").

This is OK for callers like dwim_ref() which are primarily
interested in resolving the resulting name, no matter where
it is. But callers like "git branch" treat the result as a
branch name in refs/heads/.  When we expand to a ref outside
that namespace, the results are very confusing (e.g., "git
branch @" tries to create refs/heads/HEAD, which is
nonsense).

Callers can't know from the returned string how the
expansion happened (e.g., did the user really ask for a
branch named "HEAD", or did we do a bogus expansion?). One
fix would be to return some out-parameters describing the
types of expansion that occurred. This has the benefit that
the caller can generate precise error messages ("I
understood @{upstream} to mean origin/master, but that is a
remote tracking branch, so you cannot create it as a local
name").

However, out-parameters make the function interface somewhat
cumbersome. Instead, let's do the opposite: let the caller
tell us which elements to expand. That's easier to pass in,
and none of the callers give more precise error messages
than "@{upstream} isn't a valid branch name" anyway (which
should be sufficient).

The strbuf_branchname() function needs a similar parameter,
as most of the callers access interpret_branch_name()
through it.

We can break the callers down into two groups:

  1. Callers that are happy with any kind of ref in the
     result. We pass "0" here, so they continue to work
     without restrictions. This includes merge_name(),
     the reflog handling in add_pending_object_with_path(),
     and substitute_branch_name(). This last is what powers
     dwim_ref().

  2. Callers that have funny corner cases (mostly in
     git-branch and git-checkout). These need to make use of
     the new parameter, but I've left them as "0" in this
     patch, and will address them individually in follow-on
     patches.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-02 11:05:04 -08:00
Junio C Hamano
fafca0f72a Merge branch 'cw/log-updates-for-all-refs-really'
The "core.logAllRefUpdates" that used to be boolean has been
enhanced to take 'always' as well, to record ref updates to refs
other than the ones that are expected to be updated (i.e. branches,
remote-tracking branches and notes).

* cw/log-updates-for-all-refs-really:
  doc: add note about ignoring '--no-create-reflog'
  update-ref: add test cases for bare repository
  refs: add option core.logAllRefUpdates = always
  config: add markup to core.logAllRefUpdates doc
2017-02-03 11:25:19 -08:00
Cornelius Weig
341fb28621 refs: add option core.logAllRefUpdates = always
When core.logallrefupdates is true, we only create a new reflog for refs
that are under certain well-known hierarchies. The reason is that we
know that some hierarchies (like refs/tags) are not meant to change, and
that unknown hierarchies might not want reflogs at all (e.g., a
hypothetical refs/foo might be meant to change often and drop old
history immediately).

However, sometimes it is useful to override this decision and simply log
for all refs, because the safety and audit trail is more important than
the performance implications of keeping the log around.

This patch introduces a new "always" mode for the core.logallrefupdates
option which will log updates to everything under refs/, regardless
where in the hierarchy it is (we still will not log things like
ORIG_HEAD and FETCH_HEAD, which are known to be transient).

Based-on-patch-by: Jeff King <peff@peff.net>
Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31 10:01:24 -08:00
René Scharfe
0ce11fe951 checkout: convert post_checkout_hook() to struct object_id
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-30 14:23:43 -08:00
Junio C Hamano
b3e83cc752 hold_locked_index(): align error handling with hold_lockfile_for_update()
Callers of the hold_locked_index() function pass 0 when they want to
prepare to write a new version of the index file without wishing to
die or emit an error message when the request fails (e.g. somebody
else already held the lock), and pass 1 when they want the call to
die upon failure.

This option is called LOCK_DIE_ON_ERROR by the underlying lockfile
API, and the hold_locked_index() function translates the paramter to
LOCK_DIE_ON_ERROR when calling the hold_lock_file_for_update().

Replace these hardcoded '1' with LOCK_DIE_ON_ERROR and stop
translating.  Callers other than the ones that are replaced with
this change pass '0' to the function; no behaviour change is
intended with this patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

Among the callers of hold_locked_index() that passes 0:

 - diff.c::refresh_index_quietly() at the end of "git diff" is an
   opportunistic update; it leaks the lockfile structure but it is
   just before the program exits and nobody should care.

 - builtin/describe.c::cmd_describe(),
   builtin/commit.c::cmd_status(),
   sequencer.c::read_and_refresh_cache() are all opportunistic
   updates and they are OK.

 - builtin/update-index.c::cmd_update_index() takes a lock upfront
   but we may end up not needing to update the index (i.e. the
   entries may be fully up-to-date), in which case we do not need to
   issue an error upon failure to acquire the lock.  We do diagnose
   and die if we indeed need to update, so it is OK.

 - wt-status.c::require_clean_work_tree() IS BUGGY.  It asks
   silence, does not check the returned value.  Compare with
   callsites like cmd_describe() and cmd_status() to notice that it
   is wrong to call update_index_if_able() unconditionally.
2016-12-07 11:31:59 -08:00
Junio C Hamano
6846e8734d Merge branch 'jk/create-branch-remove-unused-param'
Code clean-up.

* jk/create-branch-remove-unused-param:
  create_branch: drop unused "head" parameter
2016-11-17 13:45:21 -08:00
Jeff King
4bd488ea7c create_branch: drop unused "head" parameter
This function used to have the caller pass in the current
value of HEAD, in order to make sure we didn't clobber HEAD.
In 55c4a6730, that logic moved to validate_new_branchname(),
which just resolves HEAD itself. The parameter to
create_branch is now unused.

Since we have to update and re-wrap the docstring describing
the parameters anyway, let's take this opportunity to break
it out into a list, which makes it easier to find the
parameters.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-09 14:56:21 -08:00
Junio C Hamano
e683f17e63 Merge branch 'rs/checkout-init-macro'
Code cleanup.

* rs/checkout-init-macro:
  introduce CHECKOUT_INIT
2016-09-26 16:09:21 -07:00
Junio C Hamano
ebc63580a1 Merge branch 'tg/add-chmod+x-fix'
"git add --chmod=+x <pathspec>" added recently only toggled the
executable bit for paths that are either new or modified. This has
been corrected to flip the executable bit for all paths that match
the given pathspec.

* tg/add-chmod+x-fix:
  t3700-add: do not check working tree file mode without POSIXPERM
  t3700-add: create subdirectory gently
  add: modify already added files when --chmod is given
  read-cache: introduce chmod_index_entry
  update-index: add test for chmod flags
2016-09-26 16:09:20 -07:00
Junio C Hamano
31b83f361b Merge branch 'nd/checkout-disambiguation'
"git checkout <word>" does not follow the usual disambiguation
rules when the <word> can be both a rev and a path, to allow
checking out a branch 'foo' in a project that happens to have a
file 'foo' in the working tree without having to disambiguate.
This was poorly documented and the check was incorrect when the
command was run from a subdirectory.

* nd/checkout-disambiguation:
  checkout: fix ambiguity check in subdir
  checkout.txt: document a common case that ignores ambiguation rules
  checkout: add some spaces between code and comment
2016-09-26 16:09:18 -07:00
René Scharfe
68e3d6292f introduce CHECKOUT_INIT
Add a static initializer for struct checkout and use it throughout the
code base.  It's shorter, avoids a memset(3) call and makes sure the
base_dir member is initialized to a valid (empty) string.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-22 13:42:18 -07:00
Junio C Hamano
48e1f8ed01 Merge branch 'rs/checkout-some-states-are-const'
Code cleanup.

* rs/checkout-some-states-are-const:
  checkout: constify parameters of checkout_stage() and checkout_merged()
2016-09-21 15:15:24 -07:00
Nguyễn Thái Ngọc Duy
b829b9439a checkout: fix ambiguity check in subdir
The two functions in parse_branchname_arg(), verify_non_filename and
check_filename, need correct prefix in order to reconstruct the paths
and check for their existence. With NULL prefix, they just check paths
at top dir instead.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-21 08:44:41 -07:00
Thomas Gummerer
610d55af0f add: modify already added files when --chmod is given
When the chmod option was added to git add, it was hooked up to the diff
machinery, meaning that it only works when the version in the index
differs from the version on disk.

As the option was supposed to mirror the chmod option in update-index,
which always changes the mode in the index, regardless of the status of
the file, make sure the option behaves the same way in git add.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-15 12:13:54 -07:00
René Scharfe
ce25e4c78d checkout: constify parameters of checkout_stage() and checkout_merged()
Document the fact that checkout_stage() and checkout_merged() don't
change the objects passed to them by adding the modifier const.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-13 16:12:28 -07:00
Junio C Hamano
5e469ab66c Merge branch 'rs/use-strbuf-add-unique-abbrev' into maint
A small code clean-up.

* rs/use-strbuf-add-unique-abbrev:
  use strbuf_add_unique_abbrev() for adding short hashes
2016-09-08 21:36:00 -07:00
Nguyễn Thái Ngọc Duy
7f82b24e30 checkout: add some spaces between code and comment
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-08 12:55:51 -07:00
brian m. carlson
151b2911c1 sha1_name: convert get_sha1_mb to struct object_id
All of the callers of this function use struct object_id, so rename it
to get_oid_mb and make it take struct object_id instead of
unsigned char *.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07 12:59:43 -07:00
brian m. carlson
d449347d08 Convert read_mmblob to take struct object_id.
Since all of its callers have been updated, convert read_mmblob to take
a pointer to struct object_id.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07 12:59:42 -07:00
brian m. carlson
60af7691db builtin/checkout: convert some static functions to struct object_id
Convert all the static functions that are not callbacks to struct
object_id.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07 12:59:42 -07:00
brian m. carlson
99d1a9861a cache: convert struct cache_entry to use struct object_id
Convert struct cache_entry to use struct object_id by applying the
following semantic patch and the object_id transforms from contrib, plus
the actual change to the struct:

@@
struct cache_entry E1;
@@
- E1.sha1
+ E1.oid.hash

@@
struct cache_entry *E1;
@@
- E1->sha1
+ E1->oid.hash

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-07 12:59:42 -07:00
Junio C Hamano
e6dab9f62f Merge branch 'sb/checkout-explit-detach-no-advice'
"git checkout --detach <branch>" used to give the same advice
message as that is issued when "git checkout <tag>" (or anything
that is not a branch name) is given, but asking with "--detach" is
an explicit enough sign that the user knows what is going on.  The
advice message has been squelched in this case.

* sb/checkout-explit-detach-no-advice:
  checkout: do not mention detach advice for explicit --detach option
2016-08-19 15:34:15 -07:00
Stefan Beller
779b88a91f checkout: do not mention detach advice for explicit --detach option
When a user asked for a detached HEAD specifically with `--detach`,
we do not need to give advice on what a detached HEAD state entails as
we can assume they know what they're getting into as they asked for it.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-15 15:01:45 -07:00
Junio C Hamano
0a315befa7 Merge branch 'rs/use-strbuf-add-unique-abbrev'
A small code clean-up.

* rs/use-strbuf-add-unique-abbrev:
  use strbuf_add_unique_abbrev() for adding short hashes
2016-08-12 09:47:37 -07:00
René Scharfe
1eb47f167d use strbuf_add_unique_abbrev() for adding short hashes
Call strbuf_add_unique_abbrev() to add abbreviated hashes to strbufs
instead of taking detours through find_unique_abbrev() and its static
buffer.  This is shorter and a bit more efficient.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-06 10:33:57 -07:00
Johannes Schindelin
548009c0d5 merge_trees(): ensure that the callers release output buffer
The recursive merge machinery accumulates its output in an output
buffer, to be flushed at the end of merge_recursive(). At this point,
we forgot to release the output buffer.

When calling merge_trees() (i.e. the non-recursive part of the recursive
merge) directly, the output buffer is never flushed because the caller
may be merge_recursive() which wants to flush the output itself.

For the same reason, merge_trees() cannot release the output buffer: it
may still be needed.

Forgetting to release the output buffer did not matter much when running
git-checkout, or git-merge-recursive, because we exited after the
operation anyway. Ever since cherry-pick learned to pick a commit range,
however, this memory leak had the potential of becoming a problem.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-01 11:45:30 -07:00
Johannes Schindelin
f241ff0d0a prepare the builtins for a libified merge_recursive()
Previously, callers of merge_trees() or merge_recursive() expected that
code to die() with an error message. This used to be okay because we
called those commands from scripts, and had a chance to print out a
message in case the command failed fatally (read: with exit code 128).

As scripting incurs its own set of problems (portability, speed,
idiosyncrasies of different shells, limited data structures leading to
inefficient code), we are converting more and more of these scripts into
builtins, using library functions directly.

We already tried to use merge_recursive() directly in the builtin
git-am, for example. Unfortunately, we had to roll it back temporarily
because some of the code in merge-recursive.c still deemed it okay to
call die(), when the builtin am code really wanted to print out a useful
advice after the merge failed fatally. In the next commits, we want to
fix that.

The code touched by this commit expected merge_trees() to die() with
some useful message when there is an error condition, but merge_trees()
is going to be improved by converting all die() calls to return error()
instead (i.e. return value -1 after printing out the message as before),
so that the caller can react more flexibly.

This is a step to prepare for the version of merge_trees() that no
longer dies,  even if we just imitate the previous behavior by calling
exit(128): this is what callers of e.g. `git merge` have come to expect.

Note that the callers of the sequencer (revert and cherry-pick) already
fail fast even for the return value -1; The only difference is that they
now get a chance to say "<command> failed".

A caller of merge_trees() might want handle error messages themselves
(or even suppress them). As this patch is already complex enough, we
leave that change for a later patch.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-26 11:13:44 -07:00
Junio C Hamano
2703572b3a Merge branch 'va/i18n-even-more'
More markings of messages for i18n, with updates to various tests
to pass GETTEXT_POISON tests.

One patch from the original submission dropped due to conflicts
with jk/upload-pack-hook, which is still in flux.

* va/i18n-even-more: (38 commits)
  t5541: become resilient to GETTEXT_POISON
  i18n: branch: mark comment when editing branch description for translation
  i18n: unmark die messages for translation
  i18n: submodule: escape shell variables inside eval_gettext
  i18n: submodule: join strings marked for translation
  i18n: init-db: join message pieces
  i18n: remote: allow translations to reorder message
  i18n: remote: mark URL fallback text for translation
  i18n: standardise messages
  i18n: sequencer: add period to error message
  i18n: merge: change command option help to lowercase
  i18n: merge: mark messages for translation
  i18n: notes: mark options for translation
  i18n: notes: mark strings for translation
  i18n: transport-helper.c: change N_() call to _()
  i18n: bisect: mark strings for translation
  t5523: use test_i18ngrep for negation
  t4153: fix negated test_i18ngrep call
  t9003: become resilient to GETTEXT_POISON
  tests: unpack-trees: update to use test_i18n* functions
  ...
2016-07-13 11:24:10 -07:00
Vasco Almeida
e923a8abe9 i18n: standardise messages
Standardise messages in order to save translators some work.

Nuances fixed in this commit:
"failed to read %s"
"read of %s failed"

"detach the HEAD at named commit"
"detach HEAD at named commit"

"removing '%s' failed"
"failed to remove '%s'"

"index file corrupt"
"corrupt index file"

"failed to read %s"
"read of %s failed"

"detach the HEAD at named commit"
"detach HEAD at named commit"

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17 15:46:10 -07:00
Edward Thomson
4e55ed32db add: add --chmod=+x / --chmod=-x options
The executable bit will not be detected (and therefore will not be
set) for paths in a repository with `core.filemode` set to false,
though the users may still wish to add files as executable for
compatibility with other users who _do_ have `core.filemode`
functionality.  For example, Windows users adding shell scripts may
wish to add them as executable for compatibility with users on
non-Windows.

Although this can be done with a plumbing command
(`git update-index --add --chmod=+x foo`), teaching the `git-add`
command allows users to set a file executable with a command that
they're already familiar with.

Signed-off-by: Edward Thomson <ethomson@edwardthomson.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-07 17:43:39 -07:00
Junio C Hamano
352d72a30e Merge branch 'nd/worktree-various-heads'
The experimental "multiple worktree" feature gains more safety to
forbid operations on a branch that is checked out or being actively
worked on elsewhere, by noticing that e.g. it is being rebased.

* nd/worktree-various-heads:
  branch: do not rename a branch under bisect or rebase
  worktree.c: check whether branch is bisected in another worktree
  wt-status.c: split bisect detection out of wt_status_get_state()
  worktree.c: check whether branch is rebased in another worktree
  worktree.c: avoid referencing to worktrees[i] multiple times
  wt-status.c: make wt_status_check_rebase() work on any worktree
  wt-status.c: split rebase detection out of wt_status_get_state()
  path.c: refactor and add worktree_git_path()
  worktree.c: mark current worktree
  worktree.c: make find_shared_symref() return struct worktree *
  worktree.c: store "id" instead of "git_dir"
  path.c: add git_common_path() and strbuf_git_common_path()
  dir.c: rename str(n)cmp_icase to fspath(n)cmp
2016-05-23 14:54:29 -07:00
Nguyễn Thái Ngọc Duy
8d9fdd7087 worktree.c: check whether branch is rebased in another worktree
This function find_shared_symref() is used in a couple places:

1) in builtin/branch.c: it's used to detect if a branch is checked out
   elsewhere and refuse to delete the branch.

2) in builtin/notes.c: it's used to detect if a note is being merged in
   another worktree

3) in branch.c, the function die_if_checked_out() is actually used by
   "git checkout" and "git worktree add" to see if a branch is already
   checked out elsewhere and refuse the operation.

In cases 1 and 3, if a rebase is ongoing, "HEAD" will be in detached
mode, find_shared_symref() fails to detect it and declares "no branch is
checked out here", which is not really what we want.

This patch tightens the test. If the given symref is "HEAD", we try to
detect if rebase is ongoing. If so return the branch being rebased. This
makes checkout and branch delete operations safer because you can't
checkout a branch being rebased in another place, or delete it.

Special case for checkout. If the current branch is being rebased,
git-rebase.sh may use "git checkout" to abort and return back to the
original branch. The updated test in find_shared_symref() will prevent
that and "git rebase --abort" will fail as a result.
find_shared_symref() and die_if_checked_out() have to learn a new
option ignore_current_worktree to loosen the test a bit.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-22 14:09:38 -07:00
Michael Haggerty
be7651a347 checkout_paths(): remove unneeded flag variable
It is never read, so we can pass NULL to resolve_ref_unsafe().

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-10 11:35:36 -07:00
Nguyễn Thái Ngọc Duy
4636f65123 builtin/checkout.c: mark strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-29 14:27:58 -08:00
Junio C Hamano
e6a6a768ca Merge branch 'nd/dwim-wildcards-as-pathspecs'
"git show 'HEAD:Foo[BAR]Baz'" did not interpret the argument as a
rev, i.e. the object named by the the pathname with wildcard
characters in a tree object.

* nd/dwim-wildcards-as-pathspecs:
  get_sha1: don't die() on bogus search strings
  check_filename: tighten dwim-wildcard ambiguity
  checkout: reorder check_filename conditional
2016-02-24 13:25:52 -08:00
Jeff King
df714f81a7 check_filename: tighten dwim-wildcard ambiguity
When specifying both revisions and pathnames, we allow
"<rev> -- <pathspec>" to be spelled without the "--" as long
as it is not ambiguous. The original logic was something
like:

  1. Resolve each item with get_sha1(). If successful,
     we know it can be a <rev>. Verify that it _isn't_ a
     filename, using verify_non_filename(), and complain of
     ambiguity otherwise.

  2. If get_sha1() didn't succeed, make sure that it _is_
     a file, using verify_filename(). If not, complain
     that it is neither a <rev> nor a <pathspec>.

Both verify_filename() and verify_non_filename() rely on
check_filename(), which definitely said "yes, this is a
file" or "no, it is not" using lstat().

Commit 28fcc0b (pathspec: avoid the need of "--" when
wildcard is used, 2015-05-02) introduced a convenience
feature: check_filename() will consider anything with
wildcard meta-characters as a possible filename, without
even checking the filesystem.

This works well for case 2. For such a wildcard, we would
previously have died and said "it is neither". Post-28fcc0b,
we assume it's a pathspec and proceed.

But it makes some instances of case 1 worse. We may have an
extended sha1 expression that contains meta-characters
(e.g., "HEAD^{/foo.*bar}"), and we now complain that it's
also a filename, due to the wildcard characters (even though
that wildcard would not match anything in the filesystem).

One solution would be to actually expand the pathname and
see if it matches anything on the filesystem. But that's
potentially expensive, and we do not have to be so rigorous
for this DWIM magic (if you want rigor, use "--").

Instead, we can just use different rules for cases 1 and 2.
When we know something is a rev, we will complain only if it
meets a much higher standard for "this is also a file";
namely that it actually exists in the filesystem. Case 2
remains the same: we use the looser "it could be a filename"
standard introduced by 28fcc0b.

We can accomplish this by pulling the wildcard logic out of
check_filename() and putting it into verify_filename(). Its
partner verify_non_filename() does not need a change, since
check_filename() goes back to implementing the "higher
standard".

Besides these two callers of check_filename(), there is one
other: git-checkout does a similar DWIM itself. It hits this
code path only after get_sha1() has returned failure, making
it case 2, which gets the special wildcard treatment.

Note that we drop the tests in t2019 in favor of a more
complete set in t6133. t2019 was not the right place for
them (it's about refname ambiguity, not dwim parsing
ambiguity), and the second test explicitly checked for the
opposite result of the case we are fixing here (which didn't
really make any sense; as shown by the test_must_fail in the
test, it would only serve to annoy people).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-10 13:53:20 -08:00
Jeff King
1cc777de6f checkout: reorder check_filename conditional
If we have a "--" flag, we should not be doing DWIM magic
based on whether arguments can be filenames. Reorder the
conditional to avoid the check_filename() call entirely in
this case. The outcome is the same, but the short-circuit
makes the dependency more clear.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-10 13:53:18 -08:00
Jeff King
4be49d7568 checkout,clone: check return value of create_symref
It's unlikely that we would fail to create or update a
symbolic ref (especially HEAD), but if we do, we should
notice and complain. Note that there's no need to give more
details in our error message; create_symref will already
have done so.

While we're here, let's also fix a minor memory leak in
clone.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-12 11:11:52 -08:00
brian m. carlson
ed1c9977cb Remove get_object_hash.
Convert all instances of get_object_hash to use an appropriate reference
to the hash member of the oid member of struct object.  This provides no
functional change, as it is essentially a macro substitution.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
brian m. carlson
f2fd0760f6 Convert struct object to object_id
struct object is one of the major data structures dealing with object
IDs.  Convert it to use struct object_id instead of an unsigned char
array.  Convert get_object_hash to refer to the new member as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
brian m. carlson
7999b2cf77 Add several uses of get_object_hash.
Convert most instances where the sha1 member of struct object is
dereferenced to use get_object_hash.  Most instances that are passed to
functions that have versions taking struct object_id, such as
get_sha1_hex/get_oid_hex, or instances that can be trivially converted
to use struct object_id instead, are not converted.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Jeff King <peff@peff.net>
2015-11-20 08:02:05 -05:00
Edmundo Carmona Antoranz
870ebdb9c4 checkout: add --progress option
Under normal circumstances, and like other git commands,
git checkout will write progress info to stderr if
attached to a terminal. This option allows progress
to be forced even if not using a terminal. Also,
progress can be skipped if using option --no-progress.

Signed-off-by: Edmundo Carmona Antoranz <eantoranz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-01 14:08:17 -08:00
Junio C Hamano
5a4f07b322 Merge branch 'hv/submodule-config'
The gitmodules API accessed from the C code learned to cache stuff
lazily.

* hv/submodule-config:
  submodule: allow erroneous values for the fetchRecurseSubmodules option
  submodule: use new config API for worktree configurations
  submodule: extract functions for config set and lookup
  submodule: implement a config API for lookup of .gitmodules values
2015-08-31 15:38:52 -07:00
Junio C Hamano
88bd19be2f Merge branch 'jc/calloc-pathspec'
* jc/calloc-pathspec:
  ps_matched: xcalloc() takes nmemb and then element size
2015-08-26 15:45:34 -07:00
Junio C Hamano
8b54c23437 ps_matched: xcalloc() takes nmemb and then element size
Even though multiplication is commutative, the order of arguments
should be xcalloc(nmemb, size).  ps_matched is an array of 1-byte
element whose size is the same as the number of pathspec elements.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-20 09:57:38 -07:00
Heiko Voigt
851e18c385 submodule: use new config API for worktree configurations
We remove the extracted functions and directly parse into and read out
of the cache. This allows us to have one unified way of accessing
submodule configuration values specific to single submodules. Regardless
whether we need to access a configuration from history or from the
worktree.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-19 11:43:10 -07:00
Junio C Hamano
53860f0392 Merge branch 'es/worktree-add-cleanup'
The "new-worktree-mode" hack in "checkout" that was added in
nd/multiple-work-trees topic has been removed by updating the
implementation of new "worktree add".

* es/worktree-add-cleanup: (25 commits)
  Documentation/git-worktree: fix duplicated 'from'
  Documentation/config: mention "now" and "never" for 'expire' settings
  Documentation/git-worktree: fix broken 'linkgit' invocation
  checkout: drop intimate knowledge of newly created worktree
  worktree: populate via "git reset --hard" rather than "git checkout"
  worktree: avoid resolving HEAD unnecessarily
  worktree: make setup of new HEAD distinct from worktree population
  worktree: detect branch-name/detached and error conditions locally
  worktree: add_worktree: construct worktree-population command locally
  worktree: elucidate environment variables intended for child processes
  worktree: make branch creation distinct from worktree population
  worktree: add: suppress auto-vivication with --detach and no <branch>
  worktree: make --detach mutually exclusive with -b/-B
  worktree: introduce options container
  worktree: simplify new branch (-b/-B) option checking
  worktree: improve worktree setup message
  branch: publish die_if_checked_out()
  checkout: teach check_linked_checkout() about symbolic link HEAD
  checkout: check_linked_checkout: simplify symref parsing
  checkout: check_linked_checkout: improve "already checked out" aesthetic
  ...
2015-08-12 14:09:56 -07:00
Junio C Hamano
b6d323f164 Merge branch 'dt/refs-backend-preamble'
In preparation for allowing different "backends" to store the refs
in a way different from the traditional "one ref per file in $GIT_DIR
or in a $GIT_DIR/packed-refs file" filesystem storage, reduce
direct filesystem access to ref-like things like CHERRY_PICK_HEAD
from scripts and programs.

* dt/refs-backend-preamble:
  git-stash: use update-ref --create-reflog instead of creating files
  update-ref and tag: add --create-reflog arg
  refs: add REF_FORCE_CREATE_REFLOG flag
  git-reflog: add exists command
  refs: new public ref function: safe_create_reflog
  refs: break out check for reflog autocreation
  refs.c: add err arguments to reflog functions
2015-08-03 11:01:29 -07:00
David Turner
abd0cd3a30 refs: new public ref function: safe_create_reflog
The safe_create_reflog function creates a reflog, if it does not
already exist.

The log_ref_setup function becomes private and gains a force_create
parameter to force the creation of a reflog even if log_all_ref_updates
is false or the refname is not one of the special refnames.

The new parameter also reduces the need to store, modify, and restore
the log_all_ref_updates global before reflog creation.

In a moment, we will use this to add reflog creation commands to
git-reflog.

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-21 14:07:59 -07:00
David Turner
a4c653dfcd refs.c: add err arguments to reflog functions
Add an err argument to log_ref_setup that can explain the reason
for a failure. This then eliminates the need to manage errno through
this function since we can just add strerror(errno) to the err string
when meaningful. No callers relied on errno from this function for
anything else than the error message.

Also add err arguments to private functions write_ref_to_lockfile,
log_ref_write_1, commit_ref_update. This again eliminates the need to
manage errno in these functions.

Some error messages are slightly reordered.

Update of a patch by Ronnie Sahlberg.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-21 14:07:28 -07:00
Eric Sunshine
272be14a85 checkout: drop intimate knowledge of newly created worktree
Now that git-worktree no longer relies upon git-checkout for new branch
creation, new worktree HEAD set up, or initial worktree population,
git-checkout no longer needs intimate knowledge that it may be operating
in a newly created worktree. Therefore, drop 'new_worktree_mode' and the
private GIT_CHECKOUT_NEW_WORKTREE environment variable by which
git-worktree communicated to git-checkout that it was being invoked to
manipulate a new worktree.

This reverts the remaining changes to checkout.c by 529fef2 (checkout:
support checking out into a new working directory, 2014-11-30).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:52 -07:00
Eric Sunshine
ed89f84b3c branch: publish die_if_checked_out()
git-worktree currently conflates new branch creation, setting of HEAD in
the new wortkree, and worktree population into a single sub-invocation
of git-checkout. However, these operations will eventually be separated,
and git-worktree itself will need to be able to detect if the branch is
already checked out elsewhere, rather than relying upon git-branch to
make this determination, so publish die_if_checked_out().

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
746bbdc64f checkout: teach check_linked_checkout() about symbolic link HEAD
check_linked_checkout() only understands symref-style HEAD (i.e. "ref:
refs/heads/master"), however, HEAD may also be a an actual symbolic link
(on platforms which support it). To accurately detect if a branch is
checked out elsewhere, it needs to handle symbolic link HEAD, as well.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
33aef83666 checkout: check_linked_checkout: simplify symref parsing
check_linked_checkout() only understands symref-style HEAD (i.e. "ref:
refs/heads/master"), however, HEAD may also be a an actual symbolic link
(on platforms which support it), thus it will need to check that style
HEAD, as well (via readlink()). As a preparatory step, simplify parsing
of symref-style HEAD so the actual branch check can be re-used easily
for symbolic links (in an upcoming patch).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
39e69e1519 checkout: check_linked_checkout: improve "already checked out" aesthetic
When check_linked_checkout() discovers that the branch is already
checked out elsewhere, it emits the diagnostic:

    'blorp' is already checked out at '/some/path/.git'

which is misleading since "checked out at" implies the working tree, but
".git" is the location of the repository administrative files. Fix by
dropping ".git" from the message.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
4341460d92 checkout: generalize die_if_checked_out() branch name argument
The plan is to publish die_if_checked_out() so that callers other than
git-checkout can take advantage of it, however, those callers won't have
access to git-checkout's "struct branch_info". Therefore, change it to
accept the full name of the branch as a simple string instead.

While here, also give the argument a more meaningful name ("branch"
instead of "new").

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
4e07815dba checkout: die_if_checked_out: simplify strbuf management
There is no reason to keep the strbuf active long after its last use.
By releasing it as early as possible, resource management is simplified
and there is less worry about future changes resulting in a leak.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
aaad2c948f checkout: improve die_if_checked_out() robustness
die_if_checked_out() is intended to check if the branch about to be
checked out is already checked out either in the main worktree or in a
linked worktree. However, if .git/worktrees directory does not exist,
then it never bothers checking the main worktree, even though the
specified branch might indeed be checked out there, which is fragile
behavior.

This hasn't been a problem in practice since the current implementation
of "git worktree add" (and, earlier, "git checkout --to") always creates
.git/worktrees before die_if_checked_out() is called by the child "git
checkout" invocation which populates the new worktree.

However, git-worktree will eventually want to call die_if_checked_out()
itself rather than only doing so indirectly as a side-effect of invoking
git-checkout, and reliance upon order of operations (creating
.git/worktrees before checking if a branch is already checked out) is
fragile. As a general function, callers should not be expected to abide
by this undocumented and unwarranted restriction. Therefore, make
die_if_checked_out() more robust by checking the main worktree whether
.git/worktrees exists or not.

While here, also move a comment explaining why die_if_checked_out()'s
helper parses HEAD manually. Such information resides more naturally
with the helper itself rather than at its first point of call.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
e13d37094e checkout: name check_linked_checkouts() more meaningfully
check_linked_checkouts() doesn't just "check" linked checkouts for
"something"; specifically, it aborts the operation if the branch about
to be checked out is already checked out elsewhere. Therefore, rename it
to die_if_checked_out() to give a better indication of its function.
The more meaningful name will be particularly important when this
function is later published for use by other callers.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Eric Sunshine
c265c533cf checkout: avoid resolving HEAD unnecessarily
When --ignore-other-worktree is specified, we unconditionally skip the
check to see if the requested branch is already checked out in a linked
worktree. Since we know that we will be skipping that check, there is no
need to resolve HEAD in order to detect other conditions under which we
may skip the check.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-20 11:29:24 -07:00
Junio C Hamano
799767cc98 Merge branch 'es/worktree-add'
Update to the "linked checkout" in 2.5.0-rc1.

Instead of "checkout --to" that does not do what "checkout"
normally does, move the functionality to "git worktree add".

* es/worktree-add: (24 commits)
  Revert "checkout: retire --ignore-other-worktrees in favor of --force"
  checkout: retire --ignore-other-worktrees in favor of --force
  worktree: add: auto-vivify new branch when <branch> is omitted
  worktree: add: make -b/-B default to HEAD when <branch> is omitted
  worktree: extract basename computation to new function
  checkout: require worktree unconditionally
  checkout: retire --to option
  tests: worktree: retrofit "checkout --to" tests for "worktree add"
  worktree: add -b/-B options
  worktree: add --detach option
  worktree: add --force option
  worktree: introduce "add" command
  checkout: drop 'checkout_opts' dependency from prepare_linked_checkout
  checkout: make --to unconditionally verbose
  checkout: prepare_linked_checkout: drop now-unused 'new' argument
  checkout: relocate --to's "no branch specified" check
  checkout: fix bug with --to and relative HEAD
  Documentation/git-worktree: add EXAMPLES section
  Documentation/git-worktree: add high-level 'lock' overview
  Documentation/git-worktree: split technical info from general description
  ...
2015-07-13 14:02:19 -07:00
Junio C Hamano
7783eb2e59 Merge branch 'nd/multiple-work-trees'
"git checkout [<tree-ish>] <paths>" spent unnecessary cycles
checking if the current branch was checked out elsewhere, when we
know we are not switching the branches ourselves.

* nd/multiple-work-trees:
  worktree: new place for "git prune --worktrees"
  checkout: don't check worktrees when not necessary
2015-07-13 14:02:02 -07:00
Junio C Hamano
c925fe2368 Revert "checkout: retire --ignore-other-worktrees in favor of --force"
This reverts commit 0d1a151783.

When trying to switch to a different branch, that happens to be
checked out in another working tree, the user shouldn't have to
give up the other safety measures (like protecting the local changes
that overlap the difference between the branches) while defeating
the "no two checkouts of the same branch" safety.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-12 09:38:21 -07:00
Eric Sunshine
0d1a151783 checkout: retire --ignore-other-worktrees in favor of --force
As a safeguard, checking out a branch already checked out by a different
worktree is disallowed. This behavior can be overridden with
--ignore-other-worktrees, however, this option is neither obvious nor
particularly discoverable. As a common safeguard override, --force is
more likely to come to mind. Therefore, overload it to also suppress the
check for a branch already checked out elsewhere.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-07 14:34:46 -07:00
Eric Sunshine
0ca560cb97 checkout: require worktree unconditionally
In order to allow linked worktree creation via "git checkout --to" from
a bare repository, 3473ad0 (checkout: don't require a work tree when
checking out into a new one, 2014-11-30) dropped git-checkout's
unconditional NEED_WORK_TREE requirement and instead performed worktree
setup conditionally based upon presence or absence of the --to option.
Now that --to has been retired and git-checkout is no longer responsible
for linked worktree creation, the NEED_WORK_TREE requirement can be
re-instated.

This effectively reverts 3473ad0, except for the tests it added which
now check bare repository behavior of "git worktree add" instead.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:48 -07:00
Eric Sunshine
b979d95027 checkout: retire --to option
Now that "git worktree add" has achieved user-facing feature-parity with
"git checkout --to", retire the latter.

Move the actual linked worktree creation functionality,
prepare_linked_checkout() and its helpers, verbatim from checkout.c to
worktree.c.

This effectively reverts changes to checkout.c by 529fef2 (checkout:
support checking out into a new working directory, 2014-11-30) with the
exception of merge_working_tree() and switch_branches() which still
require specialized knowledge that a the checkout is occurring in a
newly-created linked worktree (signaled to them by the private
GIT_CHECKOUT_NEW_WORKTREE environment variable).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:47 -07:00
Eric Sunshine
bdf0f375b9 checkout: drop 'checkout_opts' dependency from prepare_linked_checkout
The plan is to relocate "git checkout --to" functionality to "git
worktree add", however, worktree.c won't have access to the 'struct
checkout_opts' passed to prepare_linked_worktree(), which it consults
for the pathname of the new worktree and the argv[] of the command it
should run to populate the new worktree. Facilitate relocation of
prepare_linked_worktree() by instead having it accept the pathname and
argv[] directly, thus eliminating the final references to 'struct
checkout_opts'.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:45 -07:00
Eric Sunshine
338dfd0da4 checkout: make --to unconditionally verbose
prepare_linked_checkout() respects git-checkout's --quiet flag, however,
the plan is to relocate "git checkout --to" functionality to "git
worktree add", and git-worktree does not (yet) have a --quiet flag.
Consequently, make prepare_linked_checkout() unconditionally verbose to
ease eventual code movement to worktree.c.

(A --quiet flag can be added to git-worktree later if there is demand
for it.)

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:45 -07:00
Eric Sunshine
3c3e7f5b57 checkout: prepare_linked_checkout: drop now-unused 'new' argument
The only references to 'new' were folded out by the last two patches.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:44 -07:00
Eric Sunshine
9559ce8368 checkout: relocate --to's "no branch specified" check
The plan is to relocate "git checkout --to" functionality to "git
worktree add", however, this check expects a 'struct branch_info' which
git-worktree won't have at hand. It will, however, have access to its
own command-line from which it can pick up the branch name. Therefore,
as a preparatory step, rather than having prepare_linked_checkout()
perform this check, make it the caller's responsibility.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:44 -07:00
Eric Sunshine
c990a4c11d checkout: fix bug with --to and relative HEAD
Given "git checkout --to <path> HEAD~1", the new worktree's HEAD should
begin life at the current branch's HEAD~1, however, it actually ends up
at HEAD~2. This happens because:

    1. git-checkout resolves HEAD~1

    2. to satisfy is_git_directory(), prepare_linked_worktree() creates
       a HEAD for the new worktree with the value of the resolved HEAD~1

    3. git-checkout re-invokes itself with the same arguments within the
       new worktree to populate the worktree

    4. the sub git-checkout resolves HEAD~1 relative to its own HEAD,
       which is the resolved HEAD~1 from the original invocation,
       resulting unexpectedly and incorrectly in HEAD~2 (relative to the
       original)

Fix this by unconditionally assigning the current worktree's HEAD as the
value of the new worktree's HEAD.

As a side-effect, this change also eliminates a dependence within
prepare_linked_checkout() upon 'struct branch_info'. The plan is to
eventually relocate "git checkout --to" functionality to "git worktree
add", and worktree.c won't have knowledge of 'struct branch_info', so
removal of this dependency is a step toward that goal.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06 11:07:44 -07:00
Nguyễn Thái Ngọc Duy
e1c1ab9d25 checkout: don't check worktrees when not necessary
When --patch or pathspecs are passed to git checkout, the working tree
will not be switching branch, so there's no need to check if the branch
that we are running checkout on is already checked out.

Original-patch-by: Spencer Baugh <sbaugh@catern.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-12 15:21:44 -07:00
Michael Haggerty
fcb615f51f add_pending_uninteresting_ref(): rewrite to take an object_id argument
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25 12:19:28 -07:00
Michael Haggerty
2b2a5be394 each_ref_fn: change to take an object_id parameter
Change typedef each_ref_fn to take a "const struct object_id *oid"
parameter instead of "const unsigned char *sha1".

To aid this transition, implement an adapter that can be used to wrap
old-style functions matching the old typedef, which is now called
"each_ref_sha1_fn"), and make such functions callable via the new
interface. This requires the old function and its cb_data to be
wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be
used as the cb_data for an adapter function, each_ref_fn_adapter().

This is an enormous diff, but most of it consists of simple,
mechanical changes to the sites that call any of the "for_each_ref"
family of functions. Subsequent to this change, the call sites can be
rewritten one by one to use the new interface.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25 12:19:27 -07:00
Junio C Hamano
68a2e6a2c8 Merge branch 'nd/multiple-work-trees'
A replacement for contrib/workdir/git-new-workdir that does not
rely on symbolic links and make sharing of objects and refs safer
by making the borrowee and borrowers aware of each other.

* nd/multiple-work-trees: (41 commits)
  prune --worktrees: fix expire vs worktree existence condition
  t1501: fix test with split index
  t2026: fix broken &&-chain
  t2026 needs procondition SANITY
  git-checkout.txt: a note about multiple checkout support for submodules
  checkout: add --ignore-other-wortrees
  checkout: pass whole struct to parse_branchname_arg instead of individual flags
  git-common-dir: make "modules/" per-working-directory directory
  checkout: do not fail if target is an empty directory
  t2025: add a test to make sure grafts is working from a linked checkout
  checkout: don't require a work tree when checking out into a new one
  git_path(): keep "info/sparse-checkout" per work-tree
  count-objects: report unused files in $GIT_DIR/worktrees/...
  gc: support prune --worktrees
  gc: factor out gc.pruneexpire parsing code
  gc: style change -- no SP before closing parenthesis
  checkout: clean up half-prepared directories in --to mode
  checkout: reject if the branch is already checked out elsewhere
  prune: strategies for linked checkouts
  checkout: support checking out into a new working directory
  ...
2015-05-11 14:23:39 -07:00
Thomas Schneider
fc792ca860 checkout: call a single commit "it" intead of "them"
When detached and checking out a branch again, git checkout warns
about commit(s) that might get lost.  It says "If you want to keep
them ..." even for only one commit.

Use Q_() to allow differentiating singular vs plural.

Signed-off-by: Thomas Schneider <thosch97@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-02 16:44:59 -07:00
Alex Henrie
9c9b4f2f8b standardize usage info string format
This patch puts the usage info strings that were not already in docopt-
like format into docopt-like format, which will be a litle easier for
end users and a lot easier for translators. Changes include:

- Placing angle brackets around fill-in-the-blank parameters
- Putting dashes in multiword parameter names
- Adding spaces to [-f|--foobar] to make [-f | --foobar]
- Replacing <foobar>* with [<foobar>...]

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-14 09:32:04 -08:00
Nguyễn Thái Ngọc Duy
1d0fa898ea checkout: add --ignore-other-wortrees
Noticed-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-07 10:23:08 -08:00
Nguyễn Thái Ngọc Duy
10f102be21 checkout: pass whole struct to parse_branchname_arg instead of individual flags
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-07 10:23:04 -08:00
Junio C Hamano
570077231f Merge branch 'nd/ls-tree-pathspec'
"git ls-tree" does not support path selection based on negative
pathspecs, but did not error out when negative pathspecs are given.

* nd/ls-tree-pathspec:
  t3102: style modernization
  t3102: document that ls-tree does not yet support negated pathspec
  ls-tree: disable negative pathspec because it's not supported
  ls-tree: remove path filtering logic in show_tree
  tree.c: update read_tree_recursive callback to pass strbuf as base
2014-12-22 12:27:12 -08:00
Junio C Hamano
c21df07886 Merge branch 'jk/checkout-from-tree'
"git checkout $treeish $path", when $path in the index and the
working tree already matched what is in $treeish at the $path,
still overwrote the $path unnecessarily.

* jk/checkout-from-tree:
  checkout $tree: do not throw away unchanged index entries
2014-12-05 11:41:33 -08:00
Nguyễn Thái Ngọc Duy
6a0b0b6de9 tree.c: update read_tree_recursive callback to pass strbuf as base
This allows the callback to use 'base' as a temporary buffer to
quickly assemble full path "without" extra allocation. The callback
has to restore it afterwards of course.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:32:29 -08:00
Max Kirillov
ee4fb8435e checkout: do not fail if target is an empty directory
Non-recursive checkout creates empty directpries in place of submodules.
If then I try to "checkout --to" submodules there, it refuses to do so,
because directory already exists.

Fix by allowing checking out to empty directory. Add test and modify the
existing one so that it uses non-empty directory.

Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:19 -08:00
Dennis Kaarsemaker
3473ad0cf6 checkout: don't require a work tree when checking out into a new one
For normal use cases, it does not make sense for 'checkout' to work on
a bare repository, without a worktree. But "checkout --to" is an
exception because it _creates_ a new worktree. Allow this option to
run on bare repositories.

People who check out from a bare repository should remember that
core.logallrefupdates is off by default and it should be turned back
on. `--to` cannot do this automatically behind the user's back because
some user may deliberately want no reflog.

For people interested in repository setup/discovery code,
is_bare_repository_cfg (aka "core.bare") is unchanged by this patch,
which means 'true' by default for bare repos. Fortunately when we get
the repo through a linked checkout, is_bare_repository_cfg is never
used. So all is still good.

[nd: commit message]

Signed-off-by: Dennis Kaarsemaker <dennis@kaarsemaker.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:18 -08:00
Nguyễn Thái Ngọc Duy
3b8925c78b checkout: clean up half-prepared directories in --to mode
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:17 -08:00
Nguyễn Thái Ngọc Duy
5883034c61 checkout: reject if the branch is already checked out elsewhere
One branch obviously can't be checked out at two places (but detached
heads are ok). Give the user a choice in this case: --detach, -b
new-branch, switch branch in the other checkout first or simply 'cd'
and continue to work there.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:17 -08:00
Nguyễn Thái Ngọc Duy
23af91d102 prune: strategies for linked checkouts
(alias R=$GIT_COMMON_DIR/worktrees/<id>)

 - linked checkouts are supposed to keep its location in $R/gitdir up
   to date. The use case is auto fixup after a manual checkout move.

 - linked checkouts are supposed to update mtime of $R/gitdir. If
   $R/gitdir's mtime is older than a limit, and it points to nowhere,
   worktrees/<id> is to be pruned.

 - If $R/locked exists, worktrees/<id> is not supposed to be pruned. If
   $R/locked exists and $R/gitdir's mtime is older than a really long
   limit, warn about old unused repo.

 - "git checkout --to" is supposed to make a hard link named $R/link
   pointing to the .git file on supported file systems to help detect
   the user manually deleting the checkout. If $R/link exists and its
   link count is greated than 1, the repo is kept.

Helped-by: Marc Branchaud <marcnarc@xiplink.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:17 -08:00
Nguyễn Thái Ngọc Duy
529fef20cf checkout: support checking out into a new working directory
"git checkout --to" sets up a new working directory with a .git file
pointing to $GIT_DIR/worktrees/<id>. It then executes "git checkout"
again on the new worktree with the same arguments except "--to" is
taken out. The second checkout execution, which is not contaminated
with any info from the current repository, will actually check out and
everything that normal "git checkout" does.

Helped-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:16 -08:00
Nguyễn Thái Ngọc Duy
1a83c240f2 git_snpath(): retire and replace with strbuf_git_path()
In the previous patch, git_snpath() is modified to allocate a new
strbuf buffer because vsnpath() needs that. But that makes it
awkward because git_snpath() receives a pre-allocated buffer from
outside and has to copy data back. Rename it to strbuf_git_path()
and make it receive strbuf directly.

Using git_path() in update_refs_for_switch() which used to call
git_snpath() is safe because that function and all of its callers do
not keep any pointer to the round-robin buffer pool allocated by
get_pathname().

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:11 -08:00
Nguyễn Thái Ngọc Duy
dcf692625a path.c: make get_pathname() call sites return const char *
Before the previous commit, get_pathname returns an array of PATH_MAX
length. Even if git_path() and similar functions does not use the
whole array, git_path() caller can, in theory.

After the commit, get_pathname() may return a buffer that has just
enough room for the returned string and git_path() caller should never
write beyond that.

Make git_path(), mkpath() and git_path_submodule() return a const
buffer to make sure callers do not write in it at all.

This could have been part of the previous commit, but the "const"
conversion is too much distraction from the core changes in path.c.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01 11:00:10 -08:00
Jeff King
c5326bd62b checkout $tree: do not throw away unchanged index entries
When we "git checkout $tree", we pull paths from $tree into
the index, and then check the resulting entries out to the
worktree. Our method for the first step is rather
heavy-handed, though; it clobbers the entire existing index
entry, even if the content is the same. This means we lose
our stat information, leading checkout_entry to later
rewrite the entire file with identical content.

Instead, let's see if we have the identical entry already in
the index, in which case we leave it in place. That lets
checkout_entry do the right thing. Our tests cover two
interesting cases:

  1. We make sure that a file which has no changes is not
     rewritten.

  2. We make sure that we do update a file that is unchanged
     in the index (versus $tree), but has working tree
     changes. We keep the old index entry, and
     checkout_entry is able to realize that our stat
     information is out of date.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-13 14:35:41 -08:00
Ronnie Sahlberg
7695d118e5 refs.c: change resolve_ref_unsafe reading argument to be a flags field
resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref
resolves successfully for writing but not for reading).  Change this to be
a flags field instead, and pass the new constant RESOLVE_REF_READING when
we want this behaviour.

While at it, swap two of the arguments in the function to put output
arguments at the end.  As a nice side effect, this ensures that we can
catch callers that were unaware of the new API so they can be audited.

Give the wrapper functions resolve_refdup and read_ref_full the same
treatment for consistency.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-15 10:47:24 -07:00
Junio C Hamano
145c590df8 Merge branch 'rs/more-uses-of-skip-prefix'
* rs/more-uses-of-skip-prefix:
  use skip_prefix() to avoid more magic numbers
2014-10-14 10:50:07 -07:00
René Scharfe
e3f1da982e use skip_prefix() to avoid more magic numbers
Continue where ae021d87 (use skip_prefix to avoid magic numbers) left off
and use skip_prefix() in more places for determining the lengths of prefix
strings to avoid using dependent constants and other indirect methods.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-07 11:09:16 -07:00
Michael Haggerty
697cc8efd9 lockfile.h: extract new header file for the functions in lockfile.c
Move the interface declaration for the functions in lockfile.c from
cache.h to a new file, lockfile.h. Add #includes where necessary (and
remove some redundant includes of cache.h by files that already
include builtin.h).

Move the documentation of the lock_file state diagram from lockfile.c
to the new header file.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-01 13:56:14 -07:00
Junio C Hamano
3fd13cbcd5 Merge branch 'dt/cache-tree-repair'
Add a few more places in "commit" and "checkout" that make sure
that the cache-tree is fully populated in the index.

* dt/cache-tree-repair:
  cache-tree: do not try to use an invalidated subtree info to build a tree
  cache-tree: Write updated cache-tree after commit
  cache-tree: subdirectory tests
  test-dump-cache-tree: invalid trees are not errors
  cache-tree: create/update cache-tree on checkout
2014-09-11 10:33:32 -07:00
Junio C Hamano
788cef81d4 Merge branch 'nd/split-index'
An experiment to use two files (the base file and incremental
changes relative to it) to represent the index to reduce I/O cost
of rewriting a large index when only small part of the working tree
changes.

* nd/split-index: (32 commits)
  t1700: new tests for split-index mode
  t2104: make sure split index mode is off for the version test
  read-cache: force split index mode with GIT_TEST_SPLIT_INDEX
  read-tree: note about dropping split-index mode or index version
  read-tree: force split-index mode off on --index-output
  rev-parse: add --shared-index-path to get shared index path
  update-index --split-index: do not split if $GIT_DIR is read only
  update-index: new options to enable/disable split index mode
  split-index: strip pathname of on-disk replaced entries
  split-index: do not invalidate cache-tree at read time
  split-index: the reading part
  split-index: the writing part
  read-cache: mark updated entries for split index
  read-cache: save deleted entries in split index
  read-cache: mark new entries for split index
  read-cache: split-index mode
  read-cache: save index SHA-1 after reading
  entry.c: update cache_changed if refresh_cache is set in checkout_entry()
  cache-tree: mark istate->cache_changed on prime_cache_tree()
  cache-tree: mark istate->cache_changed on cache tree update
  ...
2014-07-16 11:25:40 -07:00
David Turner
aecf567cbf cache-tree: create/update cache-tree on checkout
When git checkout checks out a branch, create or update the
cache-tree so that subsequent operations are faster.

update_main_cache_tree learned a new flag, WRITE_TREE_REPAIR.  When
WRITE_TREE_REPAIR is set, portions of the cache-tree which do not
correspond to existing tree objects are invalidated (and portions which
do are marked as valid).  No new tree objects are created.

Signed-off-by: David Turner <dturner@twitter.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-07 12:30:34 -07:00
Jeff King
95b567c7c3 use skip_prefix to avoid repeating strings
It's a common idiom to match a prefix and then skip past it
with strlen, like:

  if (starts_with(foo, "bar"))
	  foo += strlen("bar");

This avoids magic numbers, but means we have to repeat the
string (and there is no compiler check that we didn't make a
typo in one of the strings).

We can use skip_prefix to handle this case without repeating
ourselves.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-20 10:44:45 -07:00
Nguyễn Thái Ngọc Duy
d4a2024aef entry.c: update cache_changed if refresh_cache is set in checkout_entry()
Other fill_stat_cache_info() is on new entries, which should set
CE_ENTRY_ADDED in cache_changed, so we're safe.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13 11:49:39 -07:00
Nguyễn Thái Ngọc Duy
03b8664772 read-cache: new API write_locked_index instead of write_index/write_cache
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13 11:49:10 -07:00
Junio C Hamano
f7f349e138 Merge branch 'rs/reflog-exists'
* rs/reflog-exists:
  checkout.c: use ref_exists instead of file_exist
  refs.c: add new functions reflog_exists and delete_reflog
2014-06-06 11:23:04 -07:00
Junio C Hamano
2cc70cefdd Merge branch 'mh/ref-transaction'
Update "update-ref --stdin [-z]" and then introduce a transactional
support for (multi-)reference updates.

* mh/ref-transaction: (27 commits)
  ref_transaction_commit(): work with transaction->updates in place
  struct ref_update: add a type field
  struct ref_update: add a lock field
  ref_transaction_commit(): simplify code using temporary variables
  struct ref_update: store refname as a FLEX_ARRAY
  struct ref_update: rename field "ref_name" to "refname"
  refs: remove API function update_refs()
  update-ref --stdin: reimplement using reference transactions
  refs: add a concept of a reference transaction
  update-ref --stdin: harmonize error messages
  update-ref --stdin: improve the error message for unexpected EOF
  t1400: test one mistake at a time
  update-ref --stdin -z: deprecate interpreting the empty string as zeros
  update-ref.c: extract a new function, parse_next_sha1()
  t1400: test that stdin -z update treats empty <newvalue> as zeros
  update-ref --stdin: simplify error messages for missing oldvalues
  update-ref --stdin: make error messages more consistent
  update-ref --stdin: improve error messages for invalid values
  update-ref.c: extract a new function, parse_refname()
  parse_cmd_verify(): copy old_sha1 instead of evaluating <oldvalue> twice
  ...
2014-06-03 12:06:41 -07:00
Ronnie Sahlberg
482b8f3208 checkout.c: use ref_exists instead of file_exist
Change checkout.c to check if a ref exists instead of checking if a loose ref
file exists when deciding if to delete an orphaned log file. Otherwise, if a
ref only exists as a packed ref without a corresponding loose ref for the
currently checked out branch, we risk that the reflog will be deleted when we
switch to a different branch.

Update the reflog tests to check for this bug.

The following reproduces the bug:
$ git init-db
$ git config core.logallrefupdates true
$ git commit -m Initial --allow-empty
    [master (root-commit) bb11abe] Initial
$ git reflog master
    [8561dcb master@{0}: commit (initial): Initial]
$ find .git/{refs,logs} -type f | grep master
    [.git/refs/heads/master]
    [.git/logs/refs/heads/master]
$ git branch foo
$ git pack-refs --all
$ find .git/{refs,logs} -type f | grep master
    [.git/logs/refs/heads/master]
$ git checkout foo
$ find .git/{refs,logs} -type f | grep master
    ... reflog file is missing ...
$ git reflog master
    ... nothing ...

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:31:44 -07:00
Ronnie Sahlberg
4da588357a refs.c: add new functions reflog_exists and delete_reflog
Add two new functions, reflog_exists and delete_reflog, to hide the internal
reflog implementation (that they are files under .git/logs/...) from callers.
Update checkout.c to use these functions in update_refs_for_switch instead of
building pathnames and calling out to file access functions. Update reflog.c
to use these to check if the reflog exists. Now there are still many places
in reflog.c where we are still leaking the reflog storage implementation but
this at least reduces the number of such dependencies by one. Finally
change two places in refs.c itself to use the new function to check if a ref
exists or not isntead of build-path-and-stat(). Now, this is strictly not all
that important since these are in parts of refs that are implementing the
actual file storage backend but on the other hand it will not hurt either.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:31:43 -07:00
Junio C Hamano
d59c12d7ad Merge branch 'jl/nor-or-nand-and'
Eradicate mistaken use of "nor" (that is, essentially "nor" used
not in "neither A nor B" ;-)) from in-code comments, command output
strings, and documentations.

* jl/nor-or-nand-and:
  code and test: fix misuses of "nor"
  comments: fix misuses of "nor"
  contrib: fix misuses of "nor"
  Documentation: fix misuses of "nor"
2014-04-08 12:00:28 -07:00
Junio C Hamano
b5a52fa6c6 Merge branch 'jc/rev-parse-argh-dashed-multi-words'
Make sure that the help text given to describe the "<param>" part
of the "git cmd --option=<param>" does not contain SP or _,
e.g. "--gpg-sign=<key-id>" option for "git commit" is not spelled
as "--gpg-sign=<key id>".

* jc/rev-parse-argh-dashed-multi-words:
  parse-options: make sure argh string does not have SP or _
  update-index: teach --cacheinfo a new syntax "mode,sha1,path"
  parse-options: multi-word argh should use dash to separate words
2014-04-08 11:59:27 -07:00
Michael Haggerty
f412411245 refs.h: rename the action_on_err constants
Given that these constants are only being used when updating
references, it is inappropriate to give them such generic names as
"DIE_ON_ERR".  So prefix their names with "UPDATE_REFS_".

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-07 12:09:11 -07:00
Justin Lebar
01689909eb comments: fix misuses of "nor"
Signed-off-by: Justin Lebar <jlebar@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-31 15:29:27 -07:00
Junio C Hamano
9abf65d23c Merge branch 'bp/commit-p-editor'
When it is not necessary to edit a commit log message (e.g. "git
commit -m" is given a message without specifying "-e"), we used to
disable the spawning of the editor by overriding GIT_EDITOR, but
this means all the uses of the editor, other than to edit the
commit log message, are also affected.

* bp/commit-p-editor:
  run-command: mark run_hook_with_custom_index as deprecated
  merge hook tests: fix and update tests
  merge: fix GIT_EDITOR override for commit hook
  commit: fix patch hunk editing with "commit -p -m"
  test patch hunk editing with "commit -p -m"
  merge hook tests: use 'test_must_fail' instead of '!'
  merge hook tests: fix missing '&&' in test
2014-03-28 13:51:11 -07:00
Junio C Hamano
e703d7118c parse-options: multi-word argh should use dash to separate words
"When you need to use space, use dash" is a strange way to say that
you must not use a space.  Because it is more common for the command
line descriptions to use dashed-multi-words, you do not even want to
use spaces in these places.  Rephrase the documentation to avoid
this strangeness.

Fix a few existing multi-word argument help strings, i.e.

 - GPG key-ids given to -S/--gpg-sign are "key-id";
 - Refs used for storing notes are "notes-ref"; and
 - Expiry timestamps given to --expire are "expiry-date".

and update the corresponding documentation pages.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-24 10:43:34 -07:00
Benoit Pierre
15048f8a9a commit: fix patch hunk editing with "commit -p -m"
Don't change git environment: move the GIT_EDITOR=":" override to the
hook command subprocess, like it's already done for GIT_INDEX_FILE.

Signed-off-by: Benoit Pierre <benoit.pierre@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-18 11:25:12 -07:00
Nguyễn Thái Ngọc Duy
429bb40abd pathspec: convert some match_pathspec_depth() to ce_path_match()
This helps reduce the number of match_pathspec_depth() call sites and
show how match_pathspec_depth() is used.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-24 14:36:52 -08:00
Junio C Hamano
ad70448576 Merge branch 'cc/starts-n-ends-with'
Remove a few duplicate implementations of prefix/suffix comparison
functions, and rename them to starts_with and ends_with.

* cc/starts-n-ends-with:
  replace {pre,suf}fixcmp() with {starts,ends}_with()
  strbuf: introduce starts_with() and ends_with()
  builtin/remote: remove postfixcmp() and use suffixcmp() instead
  environment: normalize use of prefixcmp() by removing " != 0"
2013-12-17 12:02:44 -08:00
Christian Couder
5955654823 replace {pre,suf}fixcmp() with {starts,ends}_with()
Leaving only the function definitions and declarations so that any
new topic in flight can still make use of the old functions, replace
existing uses of the prefixcmp() and suffixcmp() with new API
functions.

The change can be recreated by mechanically applying this:

    $ git grep -l -e prefixcmp -e suffixcmp -- \*.c |
      grep -v strbuf\\.c |
      xargs perl -pi -e '
        s|!prefixcmp\(|starts_with\(|g;
        s|prefixcmp\(|!starts_with\(|g;
        s|!suffixcmp\(|ends_with\(|g;
        s|suffixcmp\(|!ends_with\(|g;
      '

on the result of preparatory changes in this series.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-05 14:13:21 -08:00
Junio C Hamano
5bb62059f2 Merge branch 'jk/robustify-parse-commit'
* jk/robustify-parse-commit:
  checkout: do not die when leaving broken detached HEAD
  use parse_commit_or_die instead of custom message
  use parse_commit_or_die instead of segfaulting
  assume parse_commit checks for NULL commit
  assume parse_commit checks commit->object.parsed
  log_tree_diff: die when we fail to parse a commit
2013-12-05 12:54:01 -08:00
Junio C Hamano
f101b888f2 Merge branch 'mm/checkout-auto-track-fix'
"git checkout topic", when there is not yet a local "topic" branch
but there is a unique remote-tracking branch for a remote "topic"
branch, pretended as if "git checkout -t -b topic remote/$r/topic"
(for that unique remote $r) was run. This hack however was not
implemented for "git checkout topic --".

* mm/checkout-auto-track-fix:
  checkout: proper error message on 'git checkout foo bar --'
  checkout: allow dwim for branch creation for "git checkout $branch --"
2013-10-30 12:10:16 -07:00
Jeff King
3c62183929 checkout: do not die when leaving broken detached HEAD
If we move away from a detached HEAD that has broken or
corrupted commits, we might die in two places:

  1. Printing the "old HEAD was..." message.

  2. Printing the list of orphaned commits.

In both cases, we ignore the return value of parse_commit
and feed the resulting commit to the pretty-print machinery,
which will die() upon failing to read the commit object
itself.

Since both cases are ancillary to the real operation being
performed, let's be more robust and keep going. This lets
users more easily checkout away from broken history.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-24 15:43:51 -07:00
Jeff King
683ff884cc use parse_commit_or_die instead of segfaulting
Some unchecked calls to parse_commit should obviously die on
error, because their next step is to start looking at the
parsed fields, which will cause a segfault. These are
obvious candidates for parse_commit_or_die, which will be a
strict improvement in behavior.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-24 15:43:50 -07:00
Matthieu Moy
bca3969534 checkout: proper error message on 'git checkout foo bar --'
The previous code was detecting the presence of "--" by looking only at
argument 1. As a result, "git checkout foo bar --" was interpreted as an
ambiguous file/revision list, and errored out with:

error: pathspec 'foo' did not match any file(s) known to git.
error: pathspec 'bar' did not match any file(s) known to git.
error: pathspec '--' did not match any file(s) known to git.

This patch fixes it by walking through the argument list to find the
"--", and now complains about the number of references given.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-18 12:57:16 -07:00
Matthieu Moy
a047fafc78 checkout: allow dwim for branch creation for "git checkout $branch --"
The "--" notation disambiguates files and branches, but as a side-effect
of the previous implementation, also disabled the branch auto-creation
when $branch does not exist.

A possible scenario is then:

git checkout $branch
=> fails if $branch is both a ref and a file, and suggests --

git checkout $branch --
=> refuses to create the $branch

This patch allows the second form to create $branch, and since the -- is
provided, it does not look for file named $branch.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-18 12:56:06 -07:00
Junio C Hamano
fadf96abaa Merge branch 'nd/magic-pathspec'
Use "struct pathspec" interface in more places, instead of array of
characters, the latter of which cannot express magic pathspecs
(e.g. ":(icase)makefile" that matches both Makefile and makefile).

* nd/magic-pathspec:
  add: lift the pathspec magic restriction on "add -p"
  pathspec: catch prepending :(prefix) on pathspec with short magic
2013-09-09 14:50:44 -07:00
Junio C Hamano
b02f5aeda6 Merge branch 'jl/submodule-mv'
"git mv A B" when moving a submodule A does "the right thing",
inclusing relocating its working tree and adjusting the paths in
the .gitmodules file.

* jl/submodule-mv: (53 commits)
  rm: delete .gitmodules entry of submodules removed from the work tree
  mv: update the path entry in .gitmodules for moved submodules
  submodule.c: add .gitmodules staging helper functions
  mv: move submodules using a gitfile
  mv: move submodules together with their work trees
  rm: do not set a variable twice without intermediate reading.
  t6131 - skip tests if on case-insensitive file system
  parse_pathspec: accept :(icase)path syntax
  pathspec: support :(glob) syntax
  pathspec: make --literal-pathspecs disable pathspec magic
  pathspec: support :(literal) syntax for noglob pathspec
  kill limit_pathspec_to_literal() as it's only used by parse_pathspec()
  parse_pathspec: preserve prefix length via PATHSPEC_PREFIX_ORIGIN
  parse_pathspec: make sure the prefix part is wildcard-free
  rename field "raw" to "_raw" in struct pathspec
  tree-diff: remove the use of pathspec's raw[] in follow-rename codepath
  remove match_pathspec() in favor of match_pathspec_depth()
  remove init_pathspec() in favor of parse_pathspec()
  remove diff_tree_{setup,release}_paths
  convert common_prefix() to use struct pathspec
  ...
2013-09-09 14:36:15 -07:00
Nguyễn Thái Ngọc Duy
625c3304e2 add: lift the pathspec magic restriction on "add -p"
Since 480ca64 (convert run_add_interactive to use struct pathspec -
2013-07-14), we have unconditionally passed :(prefix)xxx to
add-interactive.perl. It implies that all commands
add-interactive.perl calls must be aware of pathspec magic, or
:(prefix) is barfed. The restriction to :/ only becomes unnecessary.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-05 12:25:22 -07:00
Stefan Beller
f902207550 checkout: remove superfluous local variable
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 11:32:19 -07:00
Stefan Beller
d5d09d4754 Replace deprecated OPT_BOOLEAN by OPT_BOOL
This task emerged from b04ba2bb (parse-options: deprecate OPT_BOOLEAN,
2011-09-27). All occurrences of the respective variables have
been reviewed and none of them relied on the counting up mechanism,
but all of them were using the variable as a true boolean.

This patch does not change semantics of any command intentionally.

Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 11:32:19 -07:00
Stefan Beller
4741edd549 Remove deprecated OPTION_BOOLEAN for parsing arguments
As of b04ba2bb4 OPTION_BOOLEAN was deprecated.
This commit removes all occurrences of OPTION_BOOLEAN.
In b04ba2bb4 Junio suggested to replace it with either
OPTION_SET_INT or OPTION_COUNTUP instead. However a pattern, which
occurred often with the OPTION_BOOLEAN was a hidden boolean parameter.
So I defined OPT_HIDDEN_BOOL as an additional possible parse option
in parse-options.h to make life easy.

The OPT_HIDDEN_BOOL was used in checkout, clone, commit, show-ref.
The only exception, where there was need to fiddle with OPTION_SET_INT
was log and notes. However in these two files there is also a pattern,
so we could think of introducing OPT_NONEG_BOOL.

Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05 11:32:17 -07:00
Junio C Hamano
d3aeb31dc4 Merge branch 'nd/const-struct-cache-entry'
* nd/const-struct-cache-entry:
  Convert "struct cache_entry *" to "const ..." wherever possible
2013-07-22 11:24:01 -07:00
Nguyễn Thái Ngọc Duy
17ddc66e70 convert report_path_error to take struct pathspec
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:08 -07:00
Nguyễn Thái Ngọc Duy
18e4f40599 checkout: convert read_tree_some to take struct pathspec
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:08 -07:00
Nguyễn Thái Ngọc Duy
480ca6449e convert run_add_interactive to use struct pathspec
This passes the pathspec, more or less unmodified, to
git-add--interactive. The command itself does not process pathspec. It
simply passes the pathspec to other builtin commands. So if all those
commands support pathspec, we're good.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:08 -07:00
Nguyễn Thái Ngọc Duy
5ab2a2dabd convert read_cache_preload() to take struct pathspec
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:08 -07:00
Nguyễn Thái Ngọc Duy
817b345aeb checkout: convert to use parse_pathspec
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-15 10:56:07 -07:00
Junio C Hamano
6af984043f Merge branch 'rr/rebase-checkout-reflog'
Invocations of "git checkout" used internally by "git rebase" were
counted as "checkout", and affected later "git checkout -" to the
the user to an unexpected place.

* rr/rebase-checkout-reflog:
  checkout: respect GIT_REFLOG_ACTION
  status: do not depend on rebase reflog messages
  t/t2021-checkout-last: "checkout -" should work after a rebase finishes
  wt-status: remove unused field in grab_1st_switch_cbdata
  t7512: test "detached from" as well
2013-07-11 13:04:33 -07:00
Nguyễn Thái Ngọc Duy
9c5e6c802c Convert "struct cache_entry *" to "const ..." wherever possible
I attempted to make index_state->cache[] a "const struct cache_entry **"
to find out how existing entries in index are modified and where. The
question I have is what do we do if we really need to keep track of on-disk
changes in the index. The result is

 - diff-lib.c: setting CE_UPTODATE

 - name-hash.c: setting CE_HASHED

 - preload-index.c, read-cache.c, unpack-trees.c and
   builtin/update-index: obvious

 - entry.c: write_entry() may refresh the checked out entry via
   fill_stat_cache_info(). This causes "non-const struct cache_entry
   *" in builtin/apply.c, builtin/checkout-index.c and
   builtin/checkout.c

 - builtin/ls-files.c: --with-tree changes stagemask and may set
   CE_UPDATE

Of these, write_entry() and its call sites are probably most
interesting because it modifies on-disk info. But this is stat info
and can be retrieved via refresh, at least for porcelain
commands. Other just uses ce_flags for local purposes.

So, keeping track of "dirty" entries is just a matter of setting a
flag in index modification functions exposed by read-cache.c. Except
unpack-trees, the rest of the code base does not do anything funny
behind read-cache's back.

The actual patch is less valueable than the summary above. But if
anyone wants to re-identify the above sites. Applying this patch, then
this:

    diff --git a/cache.h b/cache.h
    index 430d021..1692891 100644
    --- a/cache.h
    +++ b/cache.h
    @@ -267,7 +267,7 @@ static inline unsigned int canon_mode(unsigned int mode)
     #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)

     struct index_state {
    -	struct cache_entry **cache;
    +	const struct cache_entry **cache;
     	unsigned int version;
     	unsigned int cache_nr, cache_alloc, cache_changed;
     	struct string_list *resolve_undo;

will help quickly identify them without bogus warnings.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-09 09:12:48 -07:00
Junio C Hamano
11fbc0b1e1 Merge branch 'jh/checkout-auto-tracking' into maint
* jh/checkout-auto-tracking:
  glossary: Update and rephrase the definition of a remote-tracking branch
  branch.c: Validate tracking branches with refspecs instead of refs/remotes/*
  t9114.2: Don't use --track option against "svn-remote"-tracking branches
  t7201.24: Add refspec to keep --track working
  t3200.39: tracking setup should fail if there is no matching refspec.
  checkout: Use remote refspecs when DWIMming tracking branches
  t2024: Show failure to use refspec when DWIMming remote branch names
  t2024: Add tests verifying current DWIM behavior of 'git checkout <branch>'
2013-06-27 14:37:21 -07:00
Brandon Casey
2c48420232 builtin/checkout.c: don't leak memory in check_tracking_name
remote_find_tracking() populates the query struct with an allocated
string in the dst member.  So, we do not need to xstrdup() the string,
since we can transfer ownership from the query struct (which will go
out of scope at the end of this function) to our callback struct, but
we must free the string if it will not be used so we will not leak
memory.

Let's do so.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-18 07:25:06 -07:00
Ramkumar Ramachandra
3bed291a3b checkout: respect GIT_REFLOG_ACTION
GIT_REFLOG_ACTION is an environment variable specifying the reflog
message to write after an action is completed.  Several other commands
including merge, reset, and commit respect it.

Fix the failing tests in t/checkout-last by making checkout respect it
too.  You can now expect

  $ git checkout -

to work as expected after any operation that internally uses "checkout"
as its implementation detail, e.g. "rebase".

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-17 10:05:40 -07:00
Junio C Hamano
77eb44b8ed Merge branch 'jh/checkout-auto-tracking'
Update "git checkout foo" that DWIMs the intended "upstream" and
turns it into "git checkout -t -b foo remotes/origin/foo" to
correctly take existing remote definitions into account.

The remote "origin" may be what uniquely map its own branch to
remotes/some/where/foo but that some/where may not be "origin".

* jh/checkout-auto-tracking:
  glossary: Update and rephrase the definition of a remote-tracking branch
  branch.c: Validate tracking branches with refspecs instead of refs/remotes/*
  t9114.2: Don't use --track option against "svn-remote"-tracking branches
  t7201.24: Add refspec to keep --track working
  t3200.39: tracking setup should fail if there is no matching refspec.
  checkout: Use remote refspecs when DWIMming tracking branches
  t2024: Show failure to use refspec when DWIMming remote branch names
  t2024: Add tests verifying current DWIM behavior of 'git checkout <branch>'
2013-05-29 14:23:10 -07:00
Junio C Hamano
de0d774d46 Merge branch 'nd/checkout-keep-sparse'
Make the initial "sparse" selection of the paths more sticky across
"git checkout".

* nd/checkout-keep-sparse:
  checkout: add --ignore-skip-worktree-bits in sparse checkout mode
2013-04-22 11:11:40 -07:00
Johan Herland
fa83a33b22 checkout: Use remote refspecs when DWIMming tracking branches
The DWIM mode of checkout allows you to run "git checkout foo" when there
is no existing local ref or path called "foo", and there is exactly _one_
remote with a remote-tracking branch called "foo". Git will automatically
create a new local branch called "foo" using the remote-tracking "foo" as
its starting point and configured upstream.

For example, consider the following unconventional (but perfectly valid)
remote setup:

	[remote "origin"]
		fetch = refs/heads/*:refs/remotes/origin/*
	[remote "frotz"]
		fetch = refs/heads/*:refs/remotes/frotz/nitfol/*

Case 1: Assume both "origin" and "frotz" have remote-tracking branches called
"foo", at "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo"
respectively. In this case "git checkout foo" should fail, because there is
more than one remote with a "foo" branch.

Case 2: Assume only "frotz" have a remote-tracking branch called "foo". In
this case "git checkout foo" should succeed, and create a local branch "foo"
from "refs/remotes/frotz/nitfol/foo", using remote branch "foo" from "frotz"
as its upstream.

The current code hardcodes the assumption that all remote-tracking branches
must match the "refs/remotes/$remote/*" pattern (which is true for remotes
with "conventional" refspecs, but not true for the "frotz" remote above).
When running "git checkout foo", the current code looks for exactly one ref
matching "refs/remotes/*/foo", hence in the above example, it fails to find
"refs/remotes/frotz/nitfol/foo", which causes it to fail both case #1 and #2.

The better way to handle the above example is to actually study the fetch
refspecs to deduce the candidate remote-tracking branches for "foo"; i.e.
assume "foo" is a remote branch being fetched, and then map "refs/heads/foo"
through the refspecs in order to get the corresponding remote-tracking
branches "refs/remotes/origin/foo" and "refs/remotes/frotz/nitfol/foo".
Finally we check which of these happens to exist in the local repo, and
if there is exactly one, we have an unambiguous match for "git checkout foo",
and may proceed.

This fixes most of the failing tests introduced in the previous patch.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-21 15:14:41 -07:00
Nguyễn Thái Ngọc Duy
08d595dc1c checkout: add --ignore-skip-worktree-bits in sparse checkout mode
"git checkout -- <paths>" is usually used to restore all modified
files in <paths>. In sparse checkout mode, this command is overloaded
with another meaning: to add back all files in <paths> that are
excluded by sparse patterns.

As the former makes more sense for day-to-day use. Switch it to the
default and the latter enabled with --ignore-skip-worktree-bits.

While at there, add info/sparse-checkout to gitrepository-layout.txt

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-15 08:54:45 -07:00
Kevin Bracey
d6e1466095 checkout: abbreviate hash in suggest_reattach
After printing the list of left-behind commits (with abbreviated
hashes), use an abbreviated hash in the suggested 'git branch' command;
there's no point in outputting a full 40-character hex string in some
friendly advice.

Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-08 16:25:50 -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
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
b58f3a645b Merge branch 'nd/checkout-option-parsing-fix'
The option parsing of "git checkout" had error checking, dwim and
defaulting missing options, all mixed in the code, and issuing an
appropriate error message with useful context was getting harder.
Reorganize the code and allow giving a proper diagnosis when the
user says "git checkout -b -t foo bar" (e.g. "-t" is not a good name
for a branch).

* nd/checkout-option-parsing-fix:
  checkout: reorder option handling
  checkout: move more parameters to struct checkout_opts
  checkout: pass "struct checkout_opts *" as const pointer
2012-09-14 11:54:34 -07:00
Nguyễn Thái Ngọc Duy
b6312c27a0 checkout: reorder option handling
checkout operates in three different modes. On top of that it tries to
be smart by guessing the branch name for switching. This results in
messy option handling code. This patch reorders it so that

 - cmd_checkout() is responsible for parsing, preparing input and
   determining mode

 - Code of each mode is in checkout_paths() and checkout_branch(),
   where sanity checks are performed

Another slight improvement is always print branch name (or commit
name) when printing errors related ot them. This helps catch the case
where an option is mistaken as branch/commit.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-11 11:49:31 -07:00
Junio C Hamano
096bbd6537 Merge branch 'nd/i18n-parseopt-help'
A lot of i18n mark-up for the help text from "git <cmd> -h".

* nd/i18n-parseopt-help: (66 commits)
  Use imperative form in help usage to describe an action
  Reduce translations by using same terminologies
  i18n: write-tree: mark parseopt strings for translation
  i18n: verify-tag: mark parseopt strings for translation
  i18n: verify-pack: mark parseopt strings for translation
  i18n: update-server-info: mark parseopt strings for translation
  i18n: update-ref: mark parseopt strings for translation
  i18n: update-index: mark parseopt strings for translation
  i18n: tag: mark parseopt strings for translation
  i18n: symbolic-ref: mark parseopt strings for translation
  i18n: show-ref: mark parseopt strings for translation
  i18n: show-branch: mark parseopt strings for translation
  i18n: shortlog: mark parseopt strings for translation
  i18n: rm: mark parseopt strings for translation
  i18n: revert, cherry-pick: mark parseopt strings for translation
  i18n: rev-parse: mark parseopt strings for translation
  i18n: reset: mark parseopt strings for translation
  i18n: rerere: mark parseopt strings for translation
  i18n: status: mark parseopt strings for translation
  i18n: replace: mark parseopt strings for translation
  ...
2012-09-07 11:09:09 -07:00
Nguyễn Thái Ngọc Duy
e51e30577a checkout: move more parameters to struct checkout_opts
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-29 11:26:09 -07:00
Nguyễn Thái Ngọc Duy
a2b4994c82 checkout: pass "struct checkout_opts *" as const pointer
This struct contains various switches to system and it feels somewhat
safer to have the compiler reassure us that nowhere else changes it.

One field that is changed, writeout_error, is split out and passed as
another argument.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-29 11:26:07 -07:00
Junio C Hamano
9cd33bbc52 Merge branch 'tr/void-diff-setup-done'
Remove unnecessary code.

* tr/void-diff-setup-done:
  diff_setup_done(): return void
2012-08-22 11:52:27 -07:00
Nguyễn Thái Ngọc Duy
e05a10937c i18n: checkout: mark parseopt strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-20 12:23:15 -07:00
Thomas Rast
28452655af diff_setup_done(): return void
diff_setup_done() has historically returned an error code, but lost
the last nonzero return in 943d5b7 (allow diff.renamelimit to be set
regardless of -M/-C, 2006-08-09).  The callers were in a pretty
confused state: some actually checked for the return code, and some
did not.

Let it return void, and patch all callers to take this into account.
This conveniently also gets rid of a handful of different(!) error
messages that could never be triggered anyway.

Note that the function can still die().

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-03 12:11:07 -07:00
Junio C Hamano
5000caa306 Merge branch 'jk/maint-checkout-orphan-check-fix'
"git checkout <branchname>" to come back from a detached HEAD state
incorrectly computed reachability of the detached HEAD, resulting in
unnecessary warnings.

* jk/maint-checkout-orphan-check-fix:
  checkout: don't confuse ref and object flags
2012-07-27 21:11:34 -07:00
Jeff King
add416a6c0 checkout: don't confuse ref and object flags
When we are leaving a detached HEAD, we do a revision traversal to
check whether we are orphaning any commits, marking the commit we're
leaving as the start of the traversal, and all existing refs as
uninteresting.

Prior to commit 468224e5, we did so by calling for_each_ref, and
feeding each resulting refname to setup_revisions.  Commit 468224e5
refactored this to simply mark the pending objects, saving an extra
lookup.

However, it confused the "flags" parameter to the each_ref_fn
clalback, which is about the flags we found while looking up the ref
with the object flag.  Because REF_ISSYMREF ("this ref is a symbolic
ref, e.g. refs/remotes/origin/HEAD") happens to be the same bit
pattern as SEEN ("we have picked this object up from the pending
list and moved it to revs.commits list"), we incorrectly reported
that a commit previously at the detached HEAD will become
unreachable if the only ref that can reach the commit happens to be
pointed at by a symbolic ref.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-25 15:37:05 -07:00
Thomas Gummerer
b60e188c51 Strip namelen out of ce_flags into a ce_namelen field
Strip the name length from the ce_flags field and move it
into its own ce_namelen field in struct cache_entry. This
will both give us a tiny bit of a performance enhancement
when working with long pathnames and is a refactoring for
more readability of the code.

It enhances readability, by making it more clear what
is a flag, and where the length is stored and make it clear
which functions use stages in comparisions and which only
use the length.

It also makes CE_NAMEMASK private, so that users don't
mistakenly write the name length in the flags.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-11 09:42:45 -07:00
Junio C Hamano
45c96c0c82 Merge branch 'cw/no-detaching-an-unborn'
"git checkout --detach", when you are still on an unborn branch,
should be forbidden, but it wasn't.

* cw/no-detaching-an-unborn:
  git-checkout: disallow --detach on unborn branch
2012-07-09 09:02:00 -07:00
Chris Webb
8ced1aa08f git-checkout: disallow --detach on unborn branch
abe199808c (git checkout -b: allow switching out of an unborn branch)
introduced a bug demonstrated by

  git checkout --orphan foo
  git checkout --detach
  git symbolic-ref HEAD

which gives 'refs/heads/(null)'.

This happens because we strbuf_addf(&branch_ref, "refs/heads/%s",
opts->new_branch) when opts->new_branch can be NULL for --detach.

Catch and forbid this case, adding a test to t2017 to catch it in
future.

Signed-off-by: Chris Webb <chris@arachsys.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-26 11:11:14 -07:00
Junio C Hamano
aed79af5d9 Merge branch 'ap/checkout-no-progress-for-non-tty'
The progress indicator for a large "git checkout" was sent to stderr
even if it is not a terminal.
2012-05-25 12:06:34 -07:00
Avery Pennarun
e9fc64c60a checkout: no progress messages if !isatty(2).
If stderr isn't a tty, we shouldn't be printing incremental progress
messages.  In particular, this affects 'git checkout -f . >&logfile'
unless you provided -q.  And git-new-workdir has no way to provide -q.

It would probably be better to have progress.c check isatty(2) all the time,
but that wouldn't allow things like 'git push --progress' to force progress
reporting to on, so I won't try to solve the general case right now.

Actual fix suggested by Jeff King.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-24 11:29:07 -07:00
Junio C Hamano
3734dbc4ab Merge branch 'ef/checkout-empty' into maint
Running "git checkout" on an unborn branch used to corrupt HEAD
(regression in 1.7.10); this makes it error out.

By Erik Faye-Lund
* ef/checkout-empty:
  checkout: do not corrupt HEAD on empty repo
2012-05-14 11:42:50 -07:00
Junio C Hamano
a735b79c63 Merge branch 'ef/checkout-empty'
Running "git checkout" on an unborn branch used to corrupt HEAD
(regression in 1.7.10); this makes it error out.

By Erik Faye-Lund
* ef/checkout-empty:
  checkout: do not corrupt HEAD on empty repo
2012-05-11 11:34:17 -07:00
Junio C Hamano
dc7a4c386d Merge branch 'js/checkout-detach-count'
When checking out another commit from an already detached state, we used
to report all commits that are not reachable from any of the refs as
lossage, but some of them might be reachable from the new HEAD, and there
is no need to warn about them.

By Johannes Sixt
* js/checkout-detach-count:
  checkout (detached): truncate list of orphaned commits at the new HEAD
  t2020-checkout-detach: check for the number of orphaned commits
2012-05-10 10:49:25 -07:00
Erik Faye-Lund
8338f771fe checkout: do not corrupt HEAD on empty repo
In abe1998 ("git checkout -b: allow switching out of an unborn
branch"), a code-path overly-optimisticly assumed that a
branch-name was specified. This is not always the case, and as
a result a NULL-pointer was attempted printed to .git/HEAD.

This could lead to at least two different failure modes:
 1) vsnprintf formated the NULL-string as something useful (e.g
    "(null)")
 2) vsnprintf crashed

Neither were very convenient for formatting a new HEAD-reference.

To fix this, reintroduce some strictness so we only take this
new codepath if a banch-name was specified.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-08 10:36:55 -07:00
Johannes Sixt
5d8863954f checkout (detached): truncate list of orphaned commits at the new HEAD
When git checkout switches from a detached HEAD to any other commit, then
all orphaned commits were listed in a warning:

  Warning: you are leaving 2 commits behind...:

    a5e5396 another fixup
    6aa1af6 fixup foo

But if the new commit is actually one from this list (6aa1af6 in this
example), then the list in the warning can be truncated at the new HEAD,
because history beginning at HEAD is not "left behind". This makes it so.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-04 12:42:27 -07:00
Junio C Hamano
b3ba46945d Merge branch 'jk/branch-quiet'
Even with "-q"uiet option, "checkout" used to report setting up tracking.
Also "branch" learns "-q"uiet option to squelch informational message.

By Jeff King
* jk/branch-quiet:
  teach "git branch" a --quiet option
  checkout: suppress tracking message with "-q"
2012-04-16 12:42:22 -07:00
Jeff King
f9a482e62b checkout: suppress tracking message with "-q"
Like the "switched to..." message (which is already
suppressed by "-q"), this message is purely informational.
Let's silence it if the user asked us to be quiet.

This patch is slightly more than a one-liner, because we
have to teach create_branch to propagate the flag all the
way down to install_branch_config.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-26 21:32:43 -07:00
Junio C Hamano
147d071816 Merge branch 'jc/checkout-out-of-unborn' into maint
* jc/checkout-out-of-unborn:
  git checkout -b: allow switching out of an unborn branch
2012-02-16 14:18:06 -08:00
Junio C Hamano
aa47ec99d1 Merge branch 'jc/checkout-out-of-unborn'
* jc/checkout-out-of-unborn:
  git checkout -b: allow switching out of an unborn branch
2012-02-12 22:43:45 -08:00
Junio C Hamano
abe199808c git checkout -b: allow switching out of an unborn branch
Running "git checkout -b another" immediately after "git init" when you do
not even have a commit on 'master' fails with:

    $ git checkout -b another
    fatal: You are on a branch yet to be born

This is unnecessary, if we redefine "git checkout -b $name" that does not
take any $start_point (which has to be a commit) as "I want to check out a
new branch $name from the state I am in".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 16:32:15 -08:00
Nguyễn Thái Ngọc Duy
2857093ba1 clone: print advice on checking out detached HEAD
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-16 16:26:27 -08:00
Junio C Hamano
7f1068e21e Merge branch 'jc/checkout-m-twoway'
* jc/checkout-m-twoway:
  checkout_merged(): squelch false warning from some gcc
  Test 'checkout -m -- path'
  checkout -m: no need to insist on having all 3 stages
2011-12-19 16:06:22 -08:00
Junio C Hamano
2e05710a16 Merge branch 'nd/resolve-ref'
* nd/resolve-ref:
  Rename resolve_ref() to resolve_ref_unsafe()
  Convert resolve_ref+xstrdup to new resolve_refdup function
  revert: convert resolve_ref() to read_ref_full()
2011-12-19 16:05:50 -08:00
Junio C Hamano
335c6e403d checkout_merged(): squelch false warning from some gcc
gcc 4.6.2 (there may be others) does not realize that the variable "mode"
can never be used uninitialized in this function and issues a false warning
under -Wuninitialized option.

Squelch it with an unnecessary initialization; it is not like a single
assignment matters to the performance in this codepath that writes out
to the filesystem with checkout_entry() anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-15 10:10:11 -08:00
Junio C Hamano
424f30a5ae Merge branch 'nd/ignore-might-be-precious'
* nd/ignore-might-be-precious:
  checkout,merge: disallow overwriting ignored files with --no-overwrite-ignore
2011-12-13 22:55:07 -08:00
Junio C Hamano
b2dd021120 Merge branch 'jn/branch-move-to-self'
* jn/branch-move-to-self:
  Allow checkout -B <current-branch> to update the current branch
  branch: allow a no-op "branch -M <current-branch> HEAD"
2011-12-13 22:53:08 -08:00
Nguyễn Thái Ngọc Duy
96ec7b1e70 Convert resolve_ref+xstrdup to new resolve_refdup function
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-13 09:26:52 -08:00
Junio C Hamano
b7f7c07977 Merge branch 'nd/resolve-ref'
* nd/resolve-ref:
  Copy resolve_ref() return value for longer use
  Convert many resolve_ref() calls to read_ref*() and ref_exists()

Conflicts:
	builtin/fmt-merge-msg.c
	builtin/merge.c
	refs.c
2011-12-09 13:37:14 -08:00
Junio C Hamano
fbbccd0a10 checkout -m: no need to insist on having all 3 stages
The content level merge machinery ll_merge() is prepared to merge
correctly in "both sides added differently" case by using an empty blob as
if it were the common ancestor. "checkout -m" could do the same, but didn't
bother supporting it and instead insisted on having all three stages.

Reported-by: Pete Harlan
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-06 14:17:01 -08:00
Nguyễn Thái Ngọc Duy
d5a35c114a Copy resolve_ref() return value for longer use
resolve_ref() may return a pointer to a static buffer. Callers that
use this value longer than a couple of statements should copy the
value to avoid some hidden resolve_ref() call that may change the
static buffer's value.

The bug found by Tony Wang <wwwjfy@gmail.com> in builtin/merge.c
demonstrates this. The first call is in cmd_merge()

branch = resolve_ref("HEAD", head_sha1, 0, &flag);

Then deep in lookup_commit_or_die() a few lines after, resolve_ref()
may be called again and destroy "branch".

lookup_commit_or_die
 lookup_commit_reference
  lookup_commit_reference_gently
   parse_object
    lookup_replace_object
     do_lookup_replace_object
      prepare_replace_object
       for_each_replace_ref
        do_for_each_ref
         get_loose_refs
          get_ref_dir
           get_ref_dir
            resolve_ref

All call sites are checked and made sure that xstrdup() is called if
the value should be saved.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-05 16:21:06 -08:00
Junio C Hamano
9ef569791f Merge branch 'nd/maint-ignore-exclude'
* nd/maint-ignore-exclude:
  checkout,merge: loosen overwriting untracked file check based on info/exclude
2011-12-05 15:25:12 -08:00
Jonathan Nieder
39bd6f7261 Allow checkout -B <current-branch> to update the current branch
When on master, "git checkout -B master <commit>" is a more natural way to
say "git reset --keep <commit>", which was originally invented for the
exact purpose of moving to the named commit while keeping the local changes
around.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-28 11:40:46 -08:00
Nguyễn Thái Ngọc Duy
c1d7036b6b checkout,merge: disallow overwriting ignored files with --no-overwrite-ignore
Ignored files usually are generated files (e.g. .o files) and can be
safely discarded. However sometimes users may have important files in
working directory, but still want a clean "git status", so they mark
them as ignored files. But in this case, these files should not be
overwritten without asking first.

Enable this use case with --no-overwrite-ignore, where git only sees
tracked and untracked files, no ignored files. Those who mix
discardable ignored files with important ones may have to sort it out
themselves.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-28 10:41:53 -08:00
Junio C Hamano
f44054c82f Merge branch 'nd/maint-ignore-exclude' into nd/ignore-might-be-precious
* nd/maint-ignore-exclude:
  checkout,merge: loosen overwriting untracked file check based on info/exclude
2011-11-28 10:41:43 -08:00
Nguyễn Thái Ngọc Duy
fc001b526c checkout,merge: loosen overwriting untracked file check based on info/exclude
Back in 1127148 (Loosen "working file will be lost" check in
Porcelain-ish - 2006-12-04), git-checkout.sh learned to quietly
overwrite ignored files. Howver the code only took .gitignore files
into account.

Standard ignored files include all specified in .gitignore files in
working directory _and_ $GIT_DIR/info/exclude. This patch makes sure
ignored files in info/exclude can also be overwritten automatically in
the spirit of the original patch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-28 10:37:50 -08:00
Nguyễn Thái Ngọc Duy
c689332391 Convert many resolve_ref() calls to read_ref*() and ref_exists()
resolve_ref() may return a pointer to a static buffer, which is not
safe for long-term use because if another resolve_ref() call happens,
the buffer may be changed.  Many call sites though do not care about
this buffer. They simply check if the return value is NULL or not.

Convert all these call sites to new wrappers to reduce resolve_ref()
calls from 57 to 34. If we change resolve_ref() prototype later on
to avoid passing static buffer out, this helps reduce changes.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-13 12:21:06 -08:00
Junio C Hamano
66d2c22f41 Merge branch 'jc/checkout-from-tree-keep-local-changes'
* jc/checkout-from-tree-keep-local-changes:
  checkout $tree $path: do not clobber local changes in $path not in $tree
2011-10-17 21:37:09 -07:00
Junio C Hamano
0941d60545 Merge branch 'rs/pending'
* rs/pending:
  commit: factor out clear_commit_marks_for_object_array
  checkout: use leak_pending flag
  bundle: use leak_pending flag
  bisect: use leak_pending flag
  revision: add leak_pending flag
  checkout: use add_pending_{object,sha1} in orphan check
  revision: factor out add_pending_sha1
  checkout: check for "Previous HEAD" notice in t2020

Conflicts:
	builtin/checkout.c
	revision.c
2011-10-13 19:03:22 -07:00
Junio C Hamano
9bd500048d Merge branch 'mh/check-ref-format-3'
* mh/check-ref-format-3: (23 commits)
  add_ref(): verify that the refname is formatted correctly
  resolve_ref(): expand documentation
  resolve_ref(): also treat a too-long SHA1 as invalid
  resolve_ref(): emit warnings for improperly-formatted references
  resolve_ref(): verify that the input refname has the right format
  remote: avoid passing NULL to read_ref()
  remote: use xstrdup() instead of strdup()
  resolve_ref(): do not follow incorrectly-formatted symbolic refs
  resolve_ref(): extract a function get_packed_ref()
  resolve_ref(): turn buffer into a proper string as soon as possible
  resolve_ref(): only follow a symlink that contains a valid, normalized refname
  resolve_ref(): use prefixcmp()
  resolve_ref(): explicitly fail if a symlink is not readable
  Change check_refname_format() to reject unnormalized refnames
  Inline function refname_format_print()
  Make collapse_slashes() allocate memory for its result
  Do not allow ".lock" at the end of any refname component
  Refactor check_refname_format()
  Change check_ref_format() to take a flags argument
  Change bad_ref_char() to return a boolean value
  ...
2011-10-10 15:56:18 -07:00
Michael Haggerty
8d9c50105f Change check_ref_format() to take a flags argument
Change check_ref_format() to take a flags argument that indicates what
is acceptable in the reference name (analogous to "git
check-ref-format"'s "--allow-onelevel" and "--refspec-pattern").  This
is more convenient for callers and also fixes a failure in the test
suite (and likely elsewhere in the code) by enabling "onelevel" and
"refspec-pattern" to be allowed independently of each other.

Also rename check_ref_format() to check_refname_format() to make it
obvious that it deals with refnames rather than references themselves.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-05 13:45:29 -07:00
Junio C Hamano
7a95d1be03 Merge branch 'jk/argv-array'
* jk/argv-array:
  run_hook: use argv_array API
  checkout: use argv_array API
  bisect: use argv_array API
  quote: provide sq_dequote_to_argv_array
  refactor argv_array into generic code
  quote.h: fix bogus comment
  add sha1_array API docs
2011-10-05 12:36:24 -07:00
René Scharfe
86a0a408b9 commit: factor out clear_commit_marks_for_object_array
Factor out the code to clear the commit marks for a whole struct
object_array from builtin/checkout.c into its own exported function
clear_commit_marks_for_object_array and use it in bisect and bundle
as well.  It handles tags and commits and ignores objects of any
other type.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:15:34 -07:00
René Scharfe
1062141928 checkout: use leak_pending flag
Instead of going through all the references again when we clear the
commit marks, do it like bisect and bundle and gain ownership of the
list of pending objects which we constructed from those references.

We simply copy the struct object_array that points to the list, set
the flag leak_pending and then prepare_revision_walk won't destroy
it and it's ours.  We use it to clear the marks and  free it at the
end.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:15:32 -07:00
René Scharfe
468224e580 checkout: use add_pending_{object,sha1} in orphan check
Instead of building a list of textual arguments for setup_revisions, use
add_pending_object and add_pending_sha1 to queue the objects directly.
This is both faster and simpler.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:03:41 -07:00
Junio C Hamano
0a1283bc39 checkout $tree $path: do not clobber local changes in $path not in $tree
Checking paths out of a tree is (currently) defined to do:

 - Grab the paths from the named tree that match the given pathspec,
   and add them to the index;

 - Check out the contents from the index for paths that match the
   pathspec to the working tree; and while at it

 - If the given pathspec did not match anything, suspect a typo from the
   command line and error out without updating the index nor the working
   tree.

Suppose that the branch you are working on has dir/myfile, and the "other"
branch has dir/other but not dir/myfile. Further imagine that you have
either modified or removed dir/myfile in your working tree, but you have
not run "git add dir/myfile" or "git rm dir/myfile" to tell Git about your
local change. Running

 $ git checkout other dir

would add dir/other to the index with the contents taken out of the
"other" branch, and check out the paths from the index that match the
pathspec "dir", namely, "dir/other" and "dir/myfile", overwriting your
local changes to "dir/myfile", even though "other" branch does not even
know about that file.

Fix it by updating the working tree only with the index entries that
was read from the "other" tree.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-30 10:33:15 -07:00
Junio C Hamano
a0b1cb60ab Merge branch 'cb/maint-ls-files-error-report' into maint
* cb/maint-ls-files-error-report:
  t3005: do not assume a particular order of stdout and stderr of git-ls-files
  ls-files: fix pathspec display on error
2011-09-23 14:30:49 -07:00
Junio C Hamano
c103e9529c Merge branch 'ci/forbid-unwanted-current-branch-update'
* ci/forbid-unwanted-current-branch-update:
  branch --set-upstream: regression fix
2011-09-16 21:48:10 -07:00
Junio C Hamano
fa79937675 branch --set-upstream: regression fix
The "git branch" command, while not in listing mode, calls create_branch()
even when the target branch already exists, and it does so even when it is
not interested in updating the value of the branch (i.e. the name of the
commit object that sits at the tip of the existing branch). This happens
when the command is run with "--set-upstream" option.

The earlier safety-measure to prevent "git branch -f $branch $commit" from
updating the currently checked out branch did not take it into account,
and we no longer can update the tracking information of the current branch.

Minimally fix this regression by telling the validation code if it is
called to really update the value of a potentially existing branch, or if
the caller merely is interested in updating auxiliary aspects of a branch.

Reported-and-Tested-by: Jay Soffian
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-16 21:47:47 -07:00
Jeff King
7bf0b01750 checkout: use argv_array API
We were using a similar ad-hoc rev_list_args structure, but
this saves some code.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-14 11:57:25 -07:00
Junio C Hamano
1da6d98a9a Merge branch 'ci/forbid-unwanted-current-branch-update'
* ci/forbid-unwanted-current-branch-update:
  Show interpreted branch name in error messages
  Prevent force-updating of the current branch
2011-08-28 21:19:31 -07:00
Junio C Hamano
6133e4da54 Merge branch 'cb/maint-ls-files-error-report'
* cb/maint-ls-files-error-report:
  ls-files: fix pathspec display on error
2011-08-23 15:34:31 -07:00
Conrad Irwin
55c4a67307 Prevent force-updating of the current branch
"git branch -M <foo> <current-branch>" allows updating the current branch
which HEAD points, without the necessary house-keeping that git reset
normally does to make this operation sensible. It also leaves the reflog
in a confusing state (you would be warned when trying to read it).

"git checkout -B <current branch> <foo>" is also partly vulnerable to this
bug; due to inconsistent pre-flight checks it would perform half of its
task and then abort just before rewriting the branch. Again this
manifested itself as the index file getting out-of-sync with HEAD.

"git branch -f" already guarded against this problem, and aborts with
a fatal error.

Update "git branch -M", "git checkout -B" and "git branch -f" to share the
same check before allowing a branch to be created. These prevent you from
updating the current branch.

We considered suggesting the use of "git reset" in the failure message
but concluded that it was not possible to discern what the user was
actually trying to do.

Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-22 16:00:36 -07:00
Junio C Hamano
a1ee40f3a2 Merge branch 'jc/checkout-reflog-fix' into maint
* jc/checkout-reflog-fix:
  checkout: do not write bogus reflog entry out
2011-08-16 12:41:12 -07:00
Clemens Buchacher
0f64bfa956 ls-files: fix pathspec display on error
The following sequence of commands reveals an issue with error
reporting of relative paths:

 $ mkdir sub
 $ cd sub
 $ git ls-files --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.
 $ git commit --error-unmatch ../bbbbb
 error: pathspec 'b' did not match any file(s) known to git.

This bug is visible only if the normalized path (i.e., the relative
path from the repository root) is longer than the prefix.
Otherwise, the code skips over the normalized path and reads from
an unused memory location which still contains a leftover of the
original command line argument.

So instead, use the existing facilities to deal with relative paths
correctly.

Also fix inconsistency between "checkout" and "commit", e.g.

    $ cd Documentation
    $ git checkout nosuch.txt
    error: pathspec 'Documentation/nosuch.txt' did not match...
    $ git commit nosuch.txt
    error: pathspec 'nosuch.txt' did not match...

by propagating the prefix down the codepath that reports the error.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-11 13:04:16 -07:00
Junio C Hamano
055f2c5d34 Merge branch 'jc/maint-1.7.3-checkout-describe' into maint
* jc/maint-1.7.3-checkout-describe:
  checkout -b <name>: correctly detect existing branch
2011-08-01 14:43:18 -07:00
Junio C Hamano
4f9aba9c26 Merge branch 'jc/checkout-reflog-fix'
* jc/checkout-reflog-fix:
  checkout: do not write bogus reflog entry out
2011-07-22 14:43:03 -07:00
Junio C Hamano
25d33546d4 Merge commit 'v1.7.6' into jc/checkout-reflog-fix
* commit 'v1.7.6': (3211 commits)
  Git 1.7.6
  completion: replace core.abbrevguard to core.abbrev
  Git 1.7.6-rc3
  Documentation: git diff --check respects core.whitespace
  gitweb: 'pickaxe' and 'grep' features requires 'search' to be enabled
  t7810: avoid unportable use of "echo"
  plug a few coverity-spotted leaks
  builtin/gc.c: add missing newline in message
  tests: link shell libraries into valgrind directory
  t/Makefile: pass test opts to valgrind target properly
  sh-i18n--envsubst.c: do not #include getopt.h
  Fix typo: existant->existent
  Git 1.7.6-rc2
  gitweb: do not misparse nonnumeric content tag files that contain a digit
  Git 1.7.6-rc1
  fetch: do not leak a refspec
  t3703: skip more tests using colons in file names on Windows
  gitweb: Fix usability of $prevent_xss
  gitweb: Move "Requirements" up in gitweb/INSTALL
  gitweb: Describe CSSMIN and JSMIN in gitweb/INSTALL
  ...
2011-07-06 15:38:28 -07:00
Junio C Hamano
b985f2aeca Merge branch 'jc/maint-1.7.3-checkout-describe'
* jc/maint-1.7.3-checkout-describe:
  checkout -b <name>: correctly detect existing branch
2011-06-29 17:03:12 -07:00
Junio C Hamano
0faf247485 Merge branch 'jc/advice-about-to-lose-commit'
* jc/advice-about-to-lose-commit:
  checkout: make advice when reattaching the HEAD less loud

Conflicts:
	builtin/checkout.c
2011-06-29 17:03:10 -07:00
Junio C Hamano
c17b229454 checkout -b <name>: correctly detect existing branch
When create a new branch, we fed "refs/heads/<proposed name>" as a string
to get_sha1() and expected it to fail when a branch already exists.

The right way to check if a ref exists is to check with resolve_ref().

A naïve solution that might appear attractive but does not work is to
forbid slashes in get_describe_name() but that will not work. A describe
name is is in the form of "ANYTHING-g<short sha1>", and that ANYTHING part
comes from a original tag name used in the repository the user ran the
describe command. A sick user could have a confusing hierarchical tag
whose name is "refs/heads/foobar" (stored as refs/tags/refs/heads/foobar")
to generate a describe name "refs/heads/foobar-6-g02ac983", and we should
be able to use that name to refer to the object whose name is 02ac983.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-05 22:17:04 -07:00
Junio C Hamano
f67d2e82d6 Merge branch 'jk/format-patch-am'
* jk/format-patch-am:
  format-patch: preserve subject newlines with -k
  clean up calling conventions for pretty.c functions
  pretty: add pp_commit_easy function for simple callers
  mailinfo: always clean up rfc822 header folding
  t: test subject handling in format-patch / am pipeline

Conflicts:
	builtin/branch.c
	builtin/log.c
	commit.h
2011-05-31 12:19:11 -07:00
Jeff King
8b8a53744f pretty: add pp_commit_easy function for simple callers
Many callers don't actually care about the pretty print
context at all; let's just give them a simple way of
pretty-printing a commit without having to create a context
struct.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-26 15:47:20 -07:00
Junio C Hamano
f807b3dcab checkout: make advice when reattaching the HEAD less loud
When switching away from a detached HEAD with "git checkout", we give a
listing of the commits about to be lost, and then tell how to resurrect
them since 8e2dc6a (commit: give final warning when reattaching HEAD to
leave commits behind, 2011-02-18).

This is a good safety measure for people who are not comfortable with the
detached HEAD state, but the advice on how to keep the state you just left
was given even to those who set advice.detachedHead to false.

Keep the warning and informational commit listing, but honor the setting
of advice.detachedHead to squelch the advice.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-24 14:26:42 -07:00
Junio C Hamano
1273738f05 Merge branch 'nd/struct-pathspec'
* nd/struct-pathspec:
  pathspec: rename per-item field has_wildcard to use_wildcard
  Improve tree_entry_interesting() handling code
  Convert read_tree{,_recursive} to support struct pathspec
  Reimplement read_tree_recursive() using tree_entry_interesting()
2011-05-06 10:50:06 -07:00
Ævar Arnfjörð Bjarmason
f06f08b78c i18n: mark checkout plural warning for translation
Mark the "Warning: you are leaving %d commit(s) behind" message added
in v1.7.5-rc0~74^2 (commit: give final warning when reattaching HEAD
to leave commits behind) by Junio C Hamano for translation.

This message requires the use of ngettext() features, and is the first
message to use the Q_() wrapper around ngettext().

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-12 00:20:28 -07:00
Ævar Arnfjörð Bjarmason
20fc73e3b0 i18n: mark checkout --detach messages for translation
Mark messages added in v1.7.5-rc0~117^2~2 (checkout: introduce
--detach synonym for "git checkout foo^{commit}") by Junio C Hamano
for translation.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-12 00:12:53 -07:00
Junio C Hamano
6c80cd298a Merge branch 'ab/i18n-st'
* ab/i18n-st: (69 commits)
  i18n: git-shortlog basic messages
  i18n: git-revert split up "could not revert/apply" message
  i18n: git-revert literal "me" messages
  i18n: git-revert "Your local changes" message
  i18n: git-revert basic messages
  i18n: git-notes GIT_NOTES_REWRITE_MODE error message
  i18n: git-notes basic commands
  i18n: git-gc "Auto packing the repository" message
  i18n: git-gc basic messages
  i18n: git-describe basic messages
  i18n: git-clean clean.requireForce messages
  i18n: git-clean basic messages
  i18n: git-bundle basic messages
  i18n: git-archive basic messages
  i18n: git-status "renamed: " message
  i18n: git-status "Initial commit" message
  i18n: git-status "Changes to be committed" message
  i18n: git-status shortstatus messages
  i18n: git-status "nothing to commit" messages
  i18n: git-status basic messages
  ...

Conflicts:
	builtin/branch.c
	builtin/checkout.c
	builtin/clone.c
	builtin/commit.c
	builtin/grep.c
	builtin/merge.c
	builtin/push.c
	builtin/revert.c
	t/t3507-cherry-pick-conflict.sh
	t/t7607-merge-overwrite.sh
2011-04-01 17:55:55 -07:00
Nguyễn Thái Ngọc Duy
f0096c06bc Convert read_tree{,_recursive} to support struct pathspec
This patch changes behavior of the two functions. Previously it does
prefix matching only. Now it can also do wildcard matching.

All callers are updated. Some gain wildcard matching (archive,
checkout), others reset pathspec_item.has_wildcard to retain old
behavior (ls-files, ls-tree as they are plumbing).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-25 09:20:33 -07:00
Jeff King
0be240cc65 checkout: tweak detached-orphan warning format
When orphaning a commit on a detached HEAD, the warning
currently looks like:

  Warning: you are leaving 3 commits behind, not connected to
  any of your branches:

   - commit subject 1
   - commit subject 2
   - commit subject 3

  If you want to keep them by creating a new branch, this
  may be a good time to do so with:

     git branch new_branch_name 933a615ab0bc566dcfd8c01ec8af159f770d3fe5

Instead of using the "-" list, let's provide a more
traditional oneline format, with the abbreviated sha1 before
each subject. Users are accustomed to seeing commits in this
format, and having the sha1 of each commit can be useful if
you want to cherry-pick instead of creating a new branch.

The new format looks like:

  Warning: you are leaving 3 commits behind, not connected to
  any of your branches:

    933a615 commit subject 1
    824fcde commit subject 2
    fa49b1a commit subject 3

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-20 13:32:47 -07:00
Jeff King
5c08dc48a8 checkout: clear commit marks after detached-orphan check
When leaving a detached HEAD, we do a revision walk to make
sure the commit we are leaving isn't being orphaned.
However, this leaves crufty marks in the commit objects
which can confuse later walkers, like the one in
stat_tracking_info.

Let's clean up after ourselves to prevent this conflict.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-20 13:32:45 -07:00
Junio C Hamano
ccf6d62d1e Merge branch 'jc/checkout-orphan-warning'
* jc/checkout-orphan-warning:
  commit: give final warning when reattaching HEAD to leave commits behind
2011-03-15 14:22:16 -07:00
Ævar Arnfjörð Bjarmason
08eaa4be03 i18n: git-checkout "Switched to a .. branch" message
Split up the "Switched to and reset branch" and "Switched to a new
branch" messages to make them easier to translate.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:54 -08:00
Ævar Arnfjörð Bjarmason
9398cc4bd4 i18n: git-checkout "HEAD is now at" message
Gettextize the "HEAD is now at" messages. Several tests in t7201-co.sh
explicitly checked for this message. Change them to skip under
GETTEXT_POISON=YesPlease.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:53 -08:00
Ævar Arnfjörð Bjarmason
983ca75ecb i18n: git-checkout describe_detached_head messages
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:53 -08:00
Ævar Arnfjörð Bjarmason
9f97ab08c2 i18n: git-checkout: our/their version message
Split up the "does not have our/their version" message to make it
easier to translate.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:53 -08:00
Ævar Arnfjörð Bjarmason
e8a8a4d76b i18n: git-checkout basic messages
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:53 -08:00
Junio C Hamano
c0791f365e Merge branch 'uk/checkout-ambiguous-ref'
* uk/checkout-ambiguous-ref:
  Rename t2019 with typo "amiguous" that meant "ambiguous"
  checkout: rearrange update_refs_for_switch for clarity
  checkout: introduce --detach synonym for "git checkout foo^{commit}"
  checkout: split off a function to peel away branchname arg
  checkout: fix bug with ambiguous refs

Conflicts:
	builtin/checkout.c
2011-02-27 21:58:29 -08:00
Junio C Hamano
8e2dc6ac06 commit: give final warning when reattaching HEAD to leave commits behind
You can detach the HEAD at an arbitrary commit in order to browse the
files in various points in the history or build older versions of the
software, without recording any new commit, and come back to an existing
branch.  When used in this "sightseer" mode, detached HEAD is a perfectly
safe mechanism.  It also is a useful state to experiment with throw-away
commits.

When coming back to an existing branch with "git checkout master",
however, the commits that were created on the detached HEAD will become
unreachable from anywhere but the reflog of the HEAD.  Check if the commit
we are about to leave is connected to some ref, and give a final warning
otherwise to remind the user for safety.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-23 17:24:59 -08:00
Jonathan Nieder
b3c0494aa9 checkout: add missing const to describe_detached_head
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 16:51:20 -08:00