Commit Graph

275 Commits

Author SHA1 Message Date
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
Felipe Contreras
a01f7f2ba0 merge: enable defaulttoupstream by default
There's no point in this:

% git merge
fatal: No commit specified and merge.defaultToUpstream not set.

We know the most likely scenario is that the user wants to merge the
upstream, and if not, he can set merge.defaultToUpstream to false.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-22 12:53:59 -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
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
0a3beb0e2e merge: fix GIT_EDITOR override for commit hook
Don't set GIT_EDITOR to ":" when calling prepare-commit-msg hook if the
editor is going to be called (e.g. with "merge -e").

Signed-off-by: Benoit Pierre <benoit.pierre@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-18 11:25:38 -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
Junio C Hamano
810273bc33 Merge branch 'nv/commit-gpgsign-config'
Introduce commit.gpgsign configuration variable to force every
commit to be GPG signed.  The variable cannot be overriden from the
command line of some of the commands that create commits except for
"git commit" and "git commit-tree", but I am not convinced that it
is a good idea to sprinkle support for --no-gpg-sign everywhere,
which in turn means that this configuration variable may not be
such a good idea.

* nv/commit-gpgsign-config:
  test the commit.gpgsign config option
  commit-tree: add and document --no-gpg-sign
  commit-tree: add the commit.gpgsign option to sign all commits
2014-02-27 14:01:03 -08:00
Nicolas Vigier
d95bfb12b8 commit-tree: add the commit.gpgsign option to sign all commits
If you want to GPG sign all your commits, you have to add the -S option
all the time. The commit.gpgsign config option allows to sign all
commits automatically.

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-24 14:50:56 -08:00
Junio C Hamano
7b4e2b7e6a Merge branch 'ef/mingw-write'
* ef/mingw-write:
  mingw: remove mingw_write
  prefer xwrite instead of write
2014-01-27 10:44:59 -08:00
Erik Faye-Lund
7edc02f4de prefer xwrite instead of write
Our xwrite wrapper already deals with a few potential hazards, and
are as such more robust. Prefer it instead of write to get the
robustness benefits everywhere.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-and-improved-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-17 12:09:26 -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
Felipe Contreras
90f867b9a5 merge: simplify ff-only option
No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-31 11:12:24 -07:00
Junio C Hamano
89dde7882f Merge branch 'rh/ishes-doc'
We liberally use "committish" and "commit-ish" (and "treeish" and
"tree-ish"); as these are non-words, let's unify these terms to
their dashed form.  More importantly, clarify the documentation on
object peeling using these terms.

* rh/ishes-doc:
  glossary: fix and clarify the definition of 'ref'
  revisions.txt: fix and clarify <rev>^{<type>}
  glossary: more precise definition of tree-ish (a.k.a. treeish)
  use 'commit-ish' instead of 'committish'
  use 'tree-ish' instead of 'treeish'
  glossary: define commit-ish (a.k.a. committish)
  glossary: mention 'treeish' as an alternative to 'tree-ish'
2013-09-17 11:42:51 -07:00
Richard Hansen
a8a5406ab3 use 'commit-ish' instead of 'committish'
Replace 'committish' in documentation and comments with 'commit-ish'
to match gitglossary(7) and to be consistent with 'tree-ish'.

The only remaining instances of 'committish' are:
  * variable, function, and macro names
  * "(also committish)" in the definition of commit-ish in
    gitglossary[7]

Signed-off-by: Richard Hansen <rhansen@bbn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-04 15:03:03 -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
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
Junio C Hamano
9678ee7ba3 Merge branch 'mv/merge-ff-tristate'
The configuration variable "merge.ff" was cleary a tri-state to
choose one from "favor fast-forward when possible", "always create
a merge even when the history could fast-forward" and "do not
create any merge, only update when the history fast-forwards", but
the command line parser did not implement the usual convention of
"last one wins, and command line overrides the configuration"
correctly.

* mv/merge-ff-tristate:
  merge: handle --ff/--no-ff/--ff-only as a tri-state option
2013-07-15 10:28:34 -07:00
Junio C Hamano
778e4b8903 Merge branch 'ms/remote-tracking-branches-in-doc'
* ms/remote-tracking-branches-in-doc:
  Change "remote tracking" to "remote-tracking"
2013-07-12 12:04:07 -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
Michael Schubert
d6ac1d2120 Change "remote tracking" to "remote-tracking"
Fix a typo ("remote remote-tracking") going back to the big cleanup
in 2010 (8b3f3f84 etc). Also, remove some more occurrences of
"tracking" and "remote tracking" in favor of "remote-tracking".

Signed-off-by: Michael Schubert <mschub@elegosoft.com>
Reviewed-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-03 13:27:15 -07:00
Miklos Vajna
a54841e96b merge: handle --ff/--no-ff/--ff-only as a tri-state option
These three options mean "favor fast-forwarding when possible,
without creating an unnecessary merge", "never fast-forward and
always create a merge commit even when the commit being merged is a
strict descendant", and "we do not want to create any merge commit;
update only when the merged commit is a strict descendant".

They are "pick one out of these three possibilities" options, and
correspond to "merge.ff" configuration that is tri-state (yes, no
and only).

However, the implementation did not follow the usual convention for
the command line options (later one wins, and command line overrides
what is in the configuration).

Fix this by consolidating two variables (fast_forward_only and
allow_fast_forward) used in the implementation into one enum that
can take one of the three possible values.

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-02 13:08:42 -07:00
Vikrant Varma
f3f8af0e54 merge: use help_unknown_ref()
Use help.c:help_unknown_ref() instead of die() to provide a
friendlier error message before exiting, when one of the refs
specified in a merge is unknown.

Signed-off-by: Vikrant Varma <vikrant.varma94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 15:34:33 -07:00
Junio C Hamano
d5fec92a7a Merge branch 'sg/gpg-sig'
Teach "merge/pull" to optionally verify and reject commits that are
not signed properly.

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

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

* jc/merge-tag-object:
  t6200: test message for merging of an annotated tag
  t6200: use test_config/test_unconfig
  merge: a random object may not necssarily be a commit
2013-04-05 14:14:41 -07:00
Sebastian Götte
eb307ae7bb merge/pull Check for untrusted good GPG signatures
When --verify-signatures is specified, abort the merge in case a good
GPG signature from an untrusted key is encountered.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 22:38:49 -07:00
Sebastian Götte
efed002249 merge/pull: verify GPG signatures of commits being merged
When --verify-signatures is specified on the command-line of git-merge
or git-pull, check whether the commits being merged have good gpg
signatures and abort the merge in case they do not. This allows e.g.
auto-deployment from untrusted repo hosts.

Signed-off-by: Sebastian Götte <jaseg@physik-pool.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-31 19:23:59 -07:00
Junio C Hamano
2d1495fe44 merge: a random object may not necssarily be a commit
The user could have said "git merge $(git rev-parse v1.0.0)"; we
shouldn't mark it as "Merge commit '15999998fb...'" as the merge
name, even though such an invocation might be crazy.

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

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-19 10:59:07 -07:00
Junio C Hamano
149a4211a4 Merge branch 'jc/custom-comment-char'
Allow a configuration variable core.commentchar to customize the
character used to comment out the hint lines in the edited text from
the default '#'.

* jc/custom-comment-char:
  Allow custom "comment char"
2013-02-04 10:23:49 -08:00
Junio C Hamano
eff80a9fd9 Allow custom "comment char"
Some users do want to write a line that begin with a pound sign, #,
in their commit log message.  Many tracking system recognise
a token of #<bugid> form, for example.

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

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

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

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

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

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

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

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:48:22 -08:00
Junio C Hamano
cf6c52fce8 Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit'
Stop spending cycles to compute information to be placed on
commented lines in "merge --no-edit", which will be discarded
anyway.

* jc/maint-fmt-merge-msg-no-edit-lose-credit:
  merge --no-edit: do not credit people involved in the side branch
2013-01-10 13:46:29 -08:00
Junio C Hamano
ea12a7d696 Merge branch 'ap/merge-stop-at-prepare-commit-msg-failure'
"git merge" started calling prepare-commit-msg hook like "git
commit" does some time ago, but forgot to pay attention to the exit
status of the hook.  t7505 may want a general clean-up but that is
a different topic.

* ap/merge-stop-at-prepare-commit-msg-failure:
  merge: Honor prepare-commit-msg return code
2013-01-09 08:26:33 -08:00
Antoine Pelisse
3e4141d08c merge: Honor prepare-commit-msg return code
65969d4 (merge: honor prepare-commit-msg hook, 2011-02-14) tried to
make "git commit" and "git merge" consistent, because a merge that
required user assistance has to be concluded with "git commit", but
back then only "git commit" triggered prepare-commit-msg hook.

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

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

Signed-off-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 09:10:11 -08:00
Junio C Hamano
9bcbb1c218 merge --no-edit: do not credit people involved in the side branch
The credit lines "By" and "Via" to credit authors and committers for
their contributions on the side branch are meant as a hint to the
integrator to decide whom to mention in the log message text.  After
the integrator saves the message in the editor, they are meant to go
away and that is why they are commented out.

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

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

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-28 15:44:44 -08:00
Nguyễn Thái Ngọc Duy
db699a8a1f Move try_merge_command and checkout_fast_forward to libgit.a
These functions are called in sequencer.c, which is part of
libgit.a. This makes libgit.a potentially require builtin/merge.c for
external git commands.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Junio C Hamano
738c218760 Merge branch 'tr/void-diff-setup-done' into maint-1.7.11
* tr/void-diff-setup-done:
  diff_setup_done(): return void
2012-09-11 10:53:40 -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
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
962e629567 i18n: merge: 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 12:23:18 -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
Jeff King
f9bc573fda ident: rename IDENT_ERROR_ON_NO_NAME to IDENT_STRICT
Callers who ask for ERROR_ON_NO_NAME are not so much
concerned that the name will be blank (because, after all,
we will fall back to using the username), but rather it is a
check to make sure that low-quality identities do not end up
in things like commit messages or emails (whereas it is OK
for them to end up in things like reflogs).

When future commits add more quality checks on the identity,
each of these callers would want to use those checks, too.
Rather than modify each of them later to add a new flag,
let's refactor the flag.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-24 17:16:41 -07:00
Junio C Hamano
283097e9ed Merge branch 'jc/merge-reduce-parents-early'
Octopus merge strategy did not reduce heads that are recorded in the
final commit correctly.

By Junio C Hamano (4) and Michał Kiedrowicz (1)
* jc/merge-reduce-parents-early:
  fmt-merge-msg: discard needless merge parents
  builtin/merge.c: reduce parents early
  builtin/merge.c: collect other parents early
  builtin/merge.c: remove "remoteheads" global variable
  merge tests: octopus with redundant parents
2012-04-27 13:59:20 -07:00
Junio C Hamano
e78cbf8cbb builtin/merge.c: reduce parents early
Instead of waiting until we record the parents of resulting merge, reduce
redundant parents (including our HEAD) immediately after reading them.

The change to t7602 illustrates the essence of the effect of this change.
The octopus merge strategy used to be fed with redundant commits only to
discard them as "up-to-date", but we no longer feed such redundant commits
to it and the affected test degenerates to a regular two-head merge.

And obviously the known-to-be-broken test in t6028 is now fixed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-17 17:15:05 -07:00
Junio C Hamano
b5d887f906 builtin/merge.c: collect other parents early
Move the code around to populate remoteheads list early in the process
before any decision regarding twohead vs octopus and fast-forwardness is
made.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-17 17:14:19 -07:00
Junio C Hamano
4c57bd2740 builtin/merge.c: remove "remoteheads" global variable
Instead pass it around starting from the toplevel cmd_merge()
as an explicit parameter.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-17 17:14:19 -07:00
Junio C Hamano
d82829b612 Sync with 1.7.9.6 2012-04-02 13:11:49 -07:00
Junio C Hamano
d387868a7d merge: backport GIT_MERGE_AUTOEDIT support
Even though 1.7.9.x series does not open the editor by default
when merging in general, it does do so in one occassion: when
merging an annotated tag. And worse yet, there is no good way
for older scripts to decline this.

Backport the support for GIT_MERGE_AUTOEDIT environment variable
from 1.7.10 track to help those stuck on 1.7.9.x maintenance
track.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-20 15:39:10 -07:00
Junio C Hamano
af050219e4 Merge branch 'zj/diff-stat-dyncol'
By Zbigniew Jędrzejewski-Szmek (8) and Junio C Hamano (1)
* zj/diff-stat-dyncol:
  : This breaks tests. Perhaps it is not worth using the decimal-width stuff
  : for this series, at least initially.
  diff --stat: add config option to limit graph width
  diff --stat: enable limiting of the graph part
  diff --stat: add a test for output with COLUMNS=40
  diff --stat: use a maximum of 5/8 for the filename part
  merge --stat: use the full terminal width
  log --stat: use the full terminal width
  show --stat: use the full terminal width
  diff --stat: use the full terminal width
  diff --stat: tests for long filenames and big change counts
2012-03-06 14:53:06 -08:00
Zbigniew Jędrzejewski-Szmek
df44483a5d diff --stat: add config option to limit graph width
Config option diff.statGraphWidth=<width> is equivalent to
--stat-graph-width=<width>, except that the config option is ignored
by format-patch.

For the graph-width limiting to be usable, it should happen
'automatically' once configured, hence the config option.
Nevertheless, graph width limiting only makes sense when used on a
wide terminal, so it should not influence the output of format-patch,
which adheres to the 80-column standard.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-01 09:15:58 -08:00
Zbigniew Jędrzejewski-Szmek
7a7159ace6 merge --stat: use the full terminal width
Make merge --stat behave like diff --stat and use the full terminal
width.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-01 09:14:16 -08:00
Junio C Hamano
4eed30a7cb Merge branch 'tr/merge-edit-guidance' into maint
* tr/merge-edit-guidance:
  merge: add instructions to the commit message when editing
2012-02-27 15:31:50 -08:00
Junio C Hamano
d46f476cb2 merge: do not trust fstat(2) too much when checking interactiveness
The heuristic used by "git merge" to decide if it automatically gives an
editor upon clean automerge is to see if the standard input and the
standard output is the same device and is a tty, we are in an interactive
session.  "The same device" test was done by comparing fstat(2) result on
the two file descriptors (and they must match), and we asked isatty() only
for the standard input (we insist that they are the same device and there
is no point asking tty-ness of the standard output).

The stat(2) emulation in the Windows port however does not give a usable
value in the st_ino field, so even if the standard output is connected to
something different from the standard input, "The same device" test may
incorrectly return true. To accomodate it, add another isatty() check for
the standard output stream as well.

Reported-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-23 12:48:26 -08:00
Junio C Hamano
5cdc9fbb08 Merge branch 'jn/merge-no-edit-fix'
* jn/merge-no-edit-fix:
  merge: do not launch an editor on "--no-edit $tag"

Conflicts:
	builtin/merge.c
2012-02-12 22:41:51 -08:00
Junio C Hamano
fd6abd0c65 Merge branch 'jc/merge-ff-only-stronger-than-signed-merge'
* jc/merge-ff-only-stronger-than-signed-merge:
  merge: do not create a signed tag merge under --ff-only option
2012-02-10 14:08:02 -08:00
Junio C Hamano
3adab6f3a7 merge: do not launch an editor on "--no-edit $tag"
When the user explicitly asked us not to, don't launch an editor.

But do everything else the same way as the "edit" case, i.e. leave the
comment with verification result in the log template and record the
mergesig in the resulting merge commit for later inspection.

Based on initiail analysis by Jonathan Nieder.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-09 13:30:52 -08:00
Junio C Hamano
b5c9f1c1b0 merge: do not create a signed tag merge under --ff-only option
Starting at release v1.7.9, if you ask to merge a signed tag, "git merge"
always creates a merge commit, even when the tag points at a commit that
happens to be a descendant of your current commit.

Unfortunately, this interacts rather badly for people who use --ff-only to
make sure that their branch is free of local developments. It used to be
possible to say:

	$ git checkout -b frotz v1.7.9~30
        $ git merge --ff-only v1.7.9

and expect that the resulting tip of frotz branch matches v1.7.9^0 (aka
the commit tagged as v1.7.9), but this fails with the updated Git with:

	fatal: Not possible to fast-forward, aborting.

because a merge that merges v1.7.9 tag to v1.7.9~30 cannot be created by
fast forwarding.

We could teach users that now they have to do

	$ git merge --ff-only v1.7.9^0

but it is far more pleasant for users if we DWIMmed this ourselves.

When an integrator pulls in a topic from a lieutenant via a signed tag,
even when the work done by the lieutenant happens to fast-forward, the
integrator wants to have a merge record, so the integrator will not be
asking for --ff-only when running "git pull" in such a case. Therefore,
this change should not regress the support for the use case v1.7.9 wanted
to add.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-05 16:30:26 -08:00
Junio C Hamano
873ce7c8d5 Merge branch 'tr/merge-edit-guidance'
* tr/merge-edit-guidance:
  merge: add instructions to the commit message when editing
2012-01-31 22:31:03 -08:00
Junio C Hamano
af6b37fab1 Merge branch 'jc/pull-signed-tag'
* jc/pull-signed-tag:
  merge: use editor by default in interactive sessions

Conflicts:
	Documentation/merge-options.txt
2012-01-31 22:30:42 -08:00
Thomas Rast
f26af3fcbc merge: add instructions to the commit message when editing
Before f824628 (merge: use editor by default in interactive sessions,
2012-01-10), git-merge only started an editor if the user explicitly
asked for it with --edit.  Thus it seemed unlikely that the user would
need extra guidance.

After f824628 the _normal_ thing is to start an editor.  Give at least
an indication of why we are doing it.

The sentence about justification is one of the few things about
standard git that are not agnostic to the workflow that the user
chose.  However, f824628 was proposed by Linus specifically to
discourage users from merging unrelated upstream progress into topic
branches.  So we may as well take another step in the same direction.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-31 12:04:38 -08:00
Junio C Hamano
f8246281af merge: use editor by default in interactive sessions
Traditionally, a cleanly resolved merge was committed by "git merge" using
the auto-generated merge commit log message without invoking the editor.

After 5 years of use in the field, it turns out that people perform too
many unjustified merges of the upstream history into their topic branches.
These merges are not just useless, but they are often not explained well,
and making the end result unreadable when it gets time for merging their
history back to their upstream.

Earlier we added the "--edit" option to the command, so that people can
edit the log message to explain and justify their merge commits. Let's
take it one step further and spawn the editor by default when we are in an
interactive session (i.e. the standard input and the standard output are
pointing at the same tty device).

There may be existing scripts that leave the standard input and the
standard output of the "git merge" connected to whatever environment the
scripts were started, and such invocation might trigger the above
"interactive session" heuristics.  GIT_MERGE_AUTOEDIT environment variable
can be set to "no" at the beginning of such scripts to use the historical
behaviour while the script runs.

Note that this backward compatibility is meant only for scripts, and we
deliberately do *not* support "merge.edit = yes/no/auto" configuration
option to allow people to keep the historical behaviour.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 14:34:55 -08:00
Junio C Hamano
5de89d3abf Merge branch 'jc/show-sig'
* jc/show-sig:
  log --show-signature: reword the common two-head merge case
  log-tree: show mergetag in log --show-signature output
  log-tree.c: small refactor in show_signature()
  commit --amend -S: strip existing gpgsig headers
  verify_signed_buffer: fix stale comment
  gpg-interface: allow use of a custom GPG binary
  pretty: %G[?GS] placeholders
  test "commit -S" and "log --show-signature"
  log: --show-signature
  commit: teach --gpg-sign option

Conflicts:
	builtin/commit-tree.c
	builtin/commit.c
	builtin/merge.c
	notes-cache.c
	pretty.c
2012-01-06 12:44:07 -08:00
Junio C Hamano
1aea303d7e Merge branch 'jk/maint-strbuf-missing-init'
* jk/maint-strbuf-missing-init:
  commit, merge: initialize static strbuf

Conflicts:
	builtin/merge.c
2011-12-22 11:27:31 -08:00
Junio C Hamano
f35ccd9be2 Merge branch 'nd/war-on-nul-in-commit'
* nd/war-on-nul-in-commit:
  commit_tree(): refuse commit messages that contain NULs
  Convert commit_tree() to take strbuf as message
  merge: abort if fails to commit

Conflicts:
	builtin/commit.c
	commit.c
	commit.h
2011-12-22 11:27:26 -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
03f94ae9f9 Update jk/maint-strbuf-missing-init to builtin/ rename 2011-12-18 00:28:16 -08:00
Nguyễn Thái Ngọc Duy
13f8b72d8c Convert commit_tree() to take strbuf as message
There wan't a way for commit_tree() to notice if the message the caller
prepared contained a NUL byte, as it did not take the length of the
message as a parameter. Use a pointer to a strbuf instead, so that we can
either choose to allow low-level plumbing commands to make commits that
contain NUL byte in its message, or forbid NUL everywhere by adding the
check in commit_tree(), in later patches.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-15 10:46:42 -08:00
Nguyễn Thái Ngọc Duy
6b3c4c0547 merge: abort if fails to commit
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-15 10:26:40 -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
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
eb8aa3d2c2 Merge branch 'jc/pull-signed-tag'
* jc/pull-signed-tag:
  commit-tree: teach -m/-F options to read logs from elsewhere
  commit-tree: update the command line parsing
  commit: teach --amend to carry forward extra headers
  merge: force edit and no-ff mode when merging a tag object
  commit: copy merged signed tags to headers of merge commit
  merge: record tag objects without peeling in MERGE_HEAD
  merge: make usage of commit->util more extensible
  fmt-merge-msg: Add contents of merged tag in the merge message
  fmt-merge-msg: package options into a structure
  fmt-merge-msg: avoid early returns
  refs DWIMmery: use the same rule for both "git fetch" and others
  fetch: allow "git fetch $there v1.0" to fetch a tag
  merge: notice local merging of tags and keep it unwrapped
  fetch: do not store peeled tag object names in FETCH_HEAD
  Split GPG interface into its own helper library

Conflicts:
	builtin/fmt-merge-msg.c
	builtin/merge.c
2011-12-09 13:37:09 -08:00
Junio C Hamano
a4043aeafe Merge branch 'jc/request-pull-show-head-4'
* jc/request-pull-show-head-4:
  request-pull: use the annotated tag contents
  fmt-merge-msg.c: Fix an "dubious one-bit signed bitfield" sparse error
  environment.c: Fix an sparse "symbol not declared" warning
  builtin/log.c: Fix an "Using plain integer as NULL pointer" warning
  fmt-merge-msg: use branch.$name.description
  request-pull: use the branch description
  request-pull: state what commit to expect
  request-pull: modernize style
  branch: teach --edit-description option
  format-patch: use branch description in cover letter
  branch: add read_branch_desc() helper function

Conflicts:
	builtin/branch.c
2011-12-09 13:37:05 -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
Junio C Hamano
ce8781e8ab Merge branch 'vr/git-merge-default-to-upstream'
* vr/git-merge-default-to-upstream:
  Show error for 'git merge' with unset merge.defaultToUpstream
2011-12-05 15:24:14 -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
Vincent van Ravesteijn
5480207c4e Show error for 'git merge' with unset merge.defaultToUpstream
'git merge' can be called without any arguments if merge.defaultToUpstream
is set. However, when merge.defaultToUpstream is not set, the user will be
presented the usage information as if he entered a command with a wrong
syntaxis. Ironically, the usage information confirms that no arguments are
mandatory.

This adds a proper error message telling the user why the command failed. As
a side-effect this can help the user in discovering the possibility to merge
with the upstream branch by setting merge.defaultToUpstream.

Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-21 09:29:06 -08:00
Jonathan Nieder
418c9b176c do not let git_path clobber errno when reporting errors
Because git_path() calls vsnprintf(), code like

	fd = open(git_path("SQUASH_MSG"), O_WRONLY | O_CREAT, 0666);
	die_errno(_("Could not write to '%s'"), git_path("SQUASH_MSG"));

can end up printing an error indicator from vsnprintf() instead of
open() by mistake.  Store the path we are trying to write to in a
temporary variable and pass _that_ to die_errno(), so the messages
written by git cherry-pick/revert and git merge can avoid this source
of confusion.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-17 15:06:27 -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
ba3c69a9ee commit: teach --gpg-sign option
This uses the gpg-interface.[ch] to allow signing the commit, i.e.

    $ git commit --gpg-sign -m foo
    You need a passphrase to unlock the secret key for
    user: "Junio C Hamano <gitster@pobox.com>"
    4096-bit RSA key, ID 96AFE6CB, created 2011-10-03 (main key ID 713660A7)

    [master 8457d13] foo
     1 files changed, 1 insertions(+), 0 deletions(-)

The lines of GPG detached signature are placed in a new multi-line header
field, instead of tucking the signature block at the end of the commit log
message text (similar to how signed tag is done), for multiple reasons:

 - The signature won't clutter output from "git log" and friends if it is
   in the extra header. If we place it at the end of the log message, we
   would need to teach "git log" and friends to strip the signature block
   with an option.

 - Teaching new versions of "git log" and "gitk" to optionally verify and
   show signatures is cleaner if we structurally know where the signature
   block is (instead of scanning in the commit log message).

 - The signature needs to be stripped upon various commit rewriting
   operations, e.g. rebase, filter-branch, etc. They all already ignore
   unknown headers, but if we place signature in the log message, all of
   these tools (and third-party tools) also need to learn how a signature
   block would look like.

 - When we added the optional encoding header, all the tools (both in tree
   and third-party) that acts on the raw commit object should have been
   fixed to ignore headers they do not understand, so it is not like that
   new header would be more likely to break than extra text in the commit.

A commit made with the above sample sequence would look like this:

    $ git cat-file commit HEAD
    tree 3cd71d90e3db4136e5260ab54599791c4f883b9d
    parent b87755351a47b09cb27d6913e6e0e17e6254a4d4
    author Junio C Hamano <gitster@pobox.com> 1317862251 -0700
    committer Junio C Hamano <gitster@pobox.com> 1317862251 -0700
    gpgsig -----BEGIN PGP SIGNATURE-----
     Version: GnuPG v1.4.10 (GNU/Linux)

     iQIcBAABAgAGBQJOjPtrAAoJELC16IaWr+bL4TMP/RSe2Y/jYnCkds9unO5JEnfG
     ...
     =dt98
     -----END PGP SIGNATURE-----

    foo

but "git log" (unless you ask for it with --pretty=raw) output is not
cluttered with the signature information.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-12 22:27:37 -08:00
Junio C Hamano
fab47d0575 merge: force edit and no-ff mode when merging a tag object
Now that we allow pulling a tag from the remote site to validate the
authenticity, we should give the user the final chance to verify and edit
the merge message. The integrator is expected to leave a meaningful merge
commit log in the history. Disallow fast-forwarding in such a case to
ensure that a merge commit is always recorded.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-09 10:29:42 -08:00
Junio C Hamano
274a5c06d5 merge: record tag objects without peeling in MERGE_HEAD
Otherwise, "git commit" wouldn't have a way to tell that we were in the
middle of merging an annotated or signed tag, not a plain commit, after
"git merge" stops to ask the user to resolve conflicts.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-08 10:36:53 -08:00
Junio C Hamano
ae8e4c9ce1 merge: make usage of commit->util more extensible
The merge-recursive code uses the commit->util field directly to annotate
the commit objects given from the command line, i.e. the remote heads to
be merged, with a single string to be used to describe it in its trace
messages and conflict markers.

Correct this short-signtedness by redefining the field to be a pointer to
a structure "struct merge_remote_desc" that later enhancements can add
more information. Store the original objects we were told to merge in a
field "obj" in this struct, so that we can recover the tag we were told to
merge.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-08 10:36:53 -08:00
Junio C Hamano
cbda121c99 fmt-merge-msg: package options into a structure
This way new features can be added more easily

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-07 15:34:30 -08:00
Junio C Hamano
57b58db74c merge: notice local merging of tags and keep it unwrapped
This also updates the autogenerated merge title message from "merge commit X"
to "merge tag X", and its effect can be seen in the changes to the test suite.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-07 14:06:39 -08:00
Junio C Hamano
d25a265220 Merge branch 'nd/maint-autofix-tag-in-head' into maint
* nd/maint-autofix-tag-in-head:
  Accept tags in HEAD or MERGE_HEAD
  merge: remove global variable head[]
  merge: use return value of resolve_ref() to determine if HEAD is invalid
  merge: keep stash[] a local variable

Conflicts:
	builtin/merge.c
2011-10-21 10:49:26 -07:00
Junio C Hamano
3dfbe68fc2 Merge branch 'js/merge-edit-option'
* js/merge-edit-option:
  Teach merge the '[-e|--edit]' option

Conflicts:
	builtin/merge.c
2011-10-19 10:49:27 -07:00
Junio C Hamano
0fd8cb3fec Merge branch 'nd/maint-autofix-tag-in-head'
* nd/maint-autofix-tag-in-head:
  Accept tags in HEAD or MERGE_HEAD
  merge: remove global variable head[]
  merge: use return value of resolve_ref() to determine if HEAD is invalid
  merge: keep stash[] a local variable

Conflicts:
	builtin/merge.c
2011-10-13 19:03:19 -07:00
Jay Soffian
66f4b98ad9 Teach merge the '[-e|--edit]' option
Implemented internally instead of as "git merge --no-commit && git commit"
so that "merge --edit" is otherwise consistent (hooks, etc) with "merge".

Note: the edit message does not include the status information that one
gets with "commit --status" and it is cleaned up after editing like one
gets with "commit --cleanup=default". A later patch could add the status
information if desired.

Note: previously we were not calling stripspace() after running the
prepare-commit-msg hook. Now we are, stripping comments and
leading/trailing whitespace lines if --edit is given, otherwise only
stripping leading/trailing whitespace lines if not given --edit.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-12 13:17:18 -07:00
Junio C Hamano
898eacd8ad fmt-merge-msg: use branch.$name.description
This teaches "merge --log" and fmt-merge-msg to use branch description
information when merging a local topic branch into the mainline. The
description goes between the branch name label and the list of commit
titles.

The refactoring to share the common configuration parsing between
merge and fmt-merge-msg needs to be made into a separate patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-07 10:11:47 -07:00
Junio C Hamano
c672f01c04 Merge branch 'jc/want-commit'
* jc/want-commit:
  Allow git merge ":/<pattern>"
2011-10-05 12:35:55 -07:00
Nguyễn Thái Ngọc Duy
baf18fc261 Accept tags in HEAD or MERGE_HEAD
HEAD and MERGE_HEAD (among other branch tips) should never hold a
tag. That can only be caused by broken tools and is cumbersome to fix
by an end user with:

  $ git update-ref HEAD $(git rev-parse HEAD^{commit})

which may look like a magic to a new person.

Be easy, warn users (so broken tools can be fixed if they bother to
report) and move on.

Be robust, if the given SHA-1 cannot be resolved to a commit object,
die (therefore return value is always valid).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-18 14:11:40 -07:00
Nguyễn Thái Ngọc Duy
894642f68d merge: remove global variable head[]
Also kill head_invalid in favor of "head_commit == NULL".

Local variable "head" in cmd_merge() is renamed to "head_sha1" to make
sure I don't miss any access because this variable should not be used
after head_commit is set (use head_commit->object.sha1 instead).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-18 13:56:58 -07:00
Nguyễn Thái Ngọc Duy
10b98fa5b3 merge: use return value of resolve_ref() to determine if HEAD is invalid
resolve_ref() only updates "head" when it returns non NULL value (it
may update "head" even when returning NULL, but not in all cases).

Because "head" is not initialized before the call, is_null_sha1() is
not enough. Check also resolve_ref() return value.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-18 13:55:56 -07:00
Junio C Hamano
6099835c19 Allow git merge ":/<pattern>"
It probably is not such a good idea to use ":/<pattern>" to specify which
commit to merge, as ":/<pattern>" can often hit unexpected commits, but
somebody tried it and got a nonsense error message:

	fatal: ':/Foo bar' does not point to a commit

So here is a for-the-sake-of-consistency update that is fairly useless
that allows users to carefully try not shooting in the foot.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-15 16:52:43 -07:00
Junio C Hamano
f946b465d7 Merge branch 'jk/color-and-pager'
* jk/color-and-pager:
  want_color: automatically fallback to color.ui
  diff: don't load color config in plumbing
  config: refactor get_colorbool function
  color: delay auto-color decision until point of use
  git_config_colorbool: refactor stdout_is_tty handling
  diff: refactor COLOR_DIFF from a flag into an int
  setup_pager: set GIT_PAGER_IN_USE
  t7006: use test_config helpers
  test-lib: add helper functions for config
  t7006: modernize calls to unset

Conflicts:
	builtin/commit.c
	parse-options.c
2011-08-28 21:19:16 -07:00
Nguyễn Thái Ngọc Duy
b4fd94064d merge: keep stash[] a local variable
A stash is created by save_state() and used by restore_state(). Pass
SHA-1 explicitly for clarity and keep stash[] to cmd_merge().

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-26 13:35:31 -07:00
Junio C Hamano
284daf2902 Merge branch 'jc/merge-reword'
* jc/merge-reword:
  merge: reword the final message
2011-08-25 16:00:53 -07:00
Jeff King
c9bfb95348 want_color: automatically fallback to color.ui
All of the "do we want color" flags default to -1 to
indicate that we don't have any color configured. This value
is handled in one of two ways:

  1. In porcelain, we check early on whether the value is
     still -1 after reading the config, and set it to the
     value of color.ui (which defaults to 0).

  2. In plumbing, it stays untouched as -1, and want_color
     defaults it to off.

This works fine, but means that every porcelain has to check
and reassign its color flag. Now that want_color gives us a
place to put this check in a single spot, we can do that,
simplifying the calling code.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-19 15:51:38 -07:00
Jeff King
f1c9626105 diff: refactor COLOR_DIFF from a flag into an int
This lets us store more than just a bit flag for whether we
want color; we can also store whether we want automatic
colors. This can be useful for making the automatic-color
decision closer to the point of use.

This mostly just involves replacing DIFF_OPT_* calls with
manipulations of the flag. The biggest exception is that
calls to DIFF_OPT_TST must check for "o->use_color > 0",
which lets an "unknown" value (i.e., the default) stay at
"no color". In the previous code, a value of "-1" was not
propagated at all.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-18 14:35:53 -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
6bf139440c clean up calling conventions for pretty.c functions
We have a pretty_print_context representing the parameters
for a pretty-print session, but we did not use it uniformly.
As a result, functions kept growing more and more arguments.

Let's clean this up in a few ways:

  1. All pretty-print pp_* functions now take a context.
     This lets us reduce the number of arguments to these
     functions, since we were just passing around the
     context values separately.

  2. The context argument now has a cmit_fmt field, which
     was passed around separately. That's one less argument
     per function.

  3. The context argument always comes first, which makes
     calling a little more uniform.

This drops lines from some callers, and adds lines in a few
places (because we need an extra line to set the context's
fmt field). Overall, we don't save many lines, but the lines
that are there are a lot simpler and more readable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-26 15:56:47 -07:00
Junio C Hamano
f23101bf9f merge: reword the final message
Ever since the merge command was made multi-strategy aware, we said

    Merge made by octopus.

at the end of a session.  Reword it to

    Merge made by the 'octopus' strategy.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-25 13:34:17 -07:00
Junio C Hamano
6699c959ef Merge branch 'jk/cherry-pick-root-with-resolve'
* jk/cherry-pick-root-with-resolve:
  t3503: test cherry picking and reverting root commits
  revert: allow reverting a root commit
  cherry-pick: handle root commits with external strategies
2011-05-19 20:37:19 -07:00
Junio C Hamano
36a45b4fa4 Merge branch 'mg/merge-ff-config'
* mg/merge-ff-config:
  tests: check git does not barf on merge.ff values for future versions of git
  merge: introduce merge.ff configuration variable

Conflicts:
	t/t7600-merge.sh
2011-05-16 16:46:23 -07:00
Jeff King
161807349a cherry-pick: handle root commits with external strategies
The merge-recursive strategy already handles root commits;
it cherry-picks the difference between the empty tree and
the root commit's tree.

However, for external strategies, we dereference NULL and
segfault while building the argument list. Instead, let's
handle this by passing the empty tree sha1 to the merge
script.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-16 13:00:30 -07:00
Junio C Hamano
c7fe5b61e1 Merge branch 'jc/maint-branch-mergeoptions'
* jc/maint-branch-mergeoptions:
  merge: make branch.<name>.mergeoptions correctly override merge.<option>

Conflicts:
	builtin/merge.c
2011-05-11 11:38:36 -07:00
Junio C Hamano
f23e8decd5 merge: introduce merge.ff configuration variable
This variable gives the default setting for --ff, --no-ff or --ff-only
options of "git merge" command.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-06 15:12:30 -07:00
Junio C Hamano
541d1fa85c Merge branch 'jc/maint-branch-mergeoptions' into mg/merge-ff-config
* jc/maint-branch-mergeoptions:
  merge: make branch.<name>.mergeoptions correctly override merge.<option>
2011-05-06 15:10:36 -07:00
Junio C Hamano
a75c3523d3 Merge branch 'ab/i18n-fixup'
* ab/i18n-fixup: (24 commits)
  i18n: use test_i18n{cmp,grep} in t7600, t7607, t7611 and t7811
  i18n: use test_i18n{grep,cmp} in t7508
  i18n: use test_i18ngrep in t7506
  i18n: use test_i18ngrep and test_i18ncmp in t7502
  i18n: use test_i18ngrep in t7501
  i18n: use test_i18ncmp in t7500
  i18n: use test_i18ngrep in t7201
  i18n: use test_i18ncmp and test_i18ngrep in t7102 and t7110
  i18n: use test_i18ncmp and test_i18ngrep in t5541, t6040, t6120, t7004, t7012 and t7060
  i18n: use test_i18ncmp and test_i18ngrep in t3700, t4001 and t4014
  i18n: use test_i18ncmp and test_i18ngrep in t3203, t3501 and t3507
  i18n: use test_i18ngrep in t2020, t2204, t3030, and t3200
  i18n: use test_i18ngrep in lib-httpd and t2019
  i18n: do not overuse C_LOCALE_OUTPUT (grep)
  i18n: use test_i18ncmp in t1200 and t2200
  i18n: .git file is not a human readable message (t5601)
  i18n: do not overuse C_LOCALE_OUTPUT
  i18n: mark init-db messages for translation
  i18n: mark checkout plural warning for translation
  i18n: mark checkout --detach messages for translation
  ...
2011-05-02 15:58:40 -07:00
Ævar Arnfjörð Bjarmason
f68f180172 i18n: mark merge CHERRY_PICK_HEAD messages for translation
Mark CHERRY_PICK_HEAD related messages in builtin/merge.c that were
added in v1.7.5-rc0~88^2~2 (Introduce CHERRY_PICK_HEAD) by Jay Soffian
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
Ævar Arnfjörð Bjarmason
c7f426d4bc i18n: mark merge "upstream" messages for translation
Mark the merge messages that were added in v1.7.5-rc1~17^2 (merge:
merge with the default upstream branch without argument) 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
Ævar Arnfjörð Bjarmason
650ed9db74 i18n: mark merge "Could not read from" message for translation
Mark the "Could not read from '%s'" message that was added to
builtin/merge.c in v1.7.4.2~25^2 (merge: honor prepare-commit-msg
hook) by Jay Soffian 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
4e8115fff1 merge: allow "-" as a short-hand for "previous branch"
Just like "git checkout -" is a short-hand for "git checkout @{-1}" to
conveniently switch back to the previous branch, "git merge -" is a
short-hand for "git merge @{-1}" to conveniently merge the previous branch.

It will allow me to say:

    $ git checkout -b au/topic
    $ git am -s ./+au-topic.mbox
    $ git checkout pu
    $ git merge -

which is an extremely typical and repetitive operation during my git day.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-07 15:57:57 -07:00
Junio C Hamano
ffc5e3c958 Merge branch 'jc/merge-sans-branch'
* jc/merge-sans-branch:
  merge: merge with the default upstream branch without argument
  merge: match the help text with the documentation

Conflicts:
	builtin/merge.c
2011-04-01 17:57:16 -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
Jeff King
97b1b4f3a6 merge: merge unborn index before setting ref
When we merge into an unborn branch, there are basically two
steps:

  1. Write the sha1 of the new commit into the ref pointed
     to by HEAD.

  2. Update the index with the new content, and check it out
     to the working tree.

We currently do them in this order. However, (2) is the step
that is much more likely to fail, since it can be blocked by
things like untracked working tree files. When it does, the
merge fails and we are left with an empty index but an
updated HEAD.

This patch switches the order, so that a failure in updating
the index leaves us unchanged. Of course, a failure in
updating the ref now leaves us with an updated index and
mis-matched HEAD. That is arguably not much better, but it
is probably less likely to actually happen.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-25 14:16:01 -07:00
Junio C Hamano
93e535a5b7 merge: merge with the default upstream branch without argument
"git merge" without specifying any commit is a no-op by default.

A new option merge.defaultupstream can be set to true to cause such an
invocation of the command to merge the upstream branches configured for
the current branch by using their last observed values stored in their
remote tracking branches.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-24 00:37:25 -07:00
Jared Hance
c395c25b86 merge: match the help text with the documentation
We used to be very casual in terminology and used <branch>, <ref> and
<rev> more or less interchangeably with <commit>.  Match the help text
given by "git merge -h" with that of the documentation.

Signed-off-by: Jared Hance <jaredhance@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-24 00:09:51 -07:00
Junio C Hamano
0ce6a51b43 Merge branch 'jk/merge-rename-ux'
* jk/merge-rename-ux:
  pull: propagate --progress to merge
  merge: enable progress reporting for rename detection
  add inexact rename detection progress infrastructure
  commit: stop setting rename limit
  bump rename limit defaults (again)
  merge: improve inexact rename limit warning
2011-03-19 23:23:56 -07:00
Ævar Arnfjörð Bjarmason
157efde10f i18n: git-merge "Wonderful" message
Gettextize the "Wonderful" message. A test in t7600-merge.sh
explicitly checked for this message. Change it 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 23:52:55 -08:00
Ævar Arnfjörð Bjarmason
2ceb61e0a0 i18n: git-merge "Updating %s..%s" message
Gettextize the "Updating %s..%s\n" message. A test in
t1200-tutorial.sh explicitly checked for this message. Split it into
two tests to skip the test_cmp test 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 23:52:55 -08:00
Ævar Arnfjörð Bjarmason
bacec47845 i18n: git-merge basic messages
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-09 23:52:55 -08:00
Junio C Hamano
66ecd2d053 Merge branch 'js/cherry-pick-usability'
* js/cherry-pick-usability:
  Teach commit about CHERRY_PICK_HEAD
  bash: teach __git_ps1 about CHERRY_PICK_HEAD
  Introduce CHERRY_PICK_HEAD
  t3507: introduce pristine-detach helper
2011-03-09 15:56:17 -08:00
Junio C Hamano
ecd75ddb6f Merge branch 'mg/placeholders-are-lowercase'
* mg/placeholders-are-lowercase:
  Make <identifier> lowercase in Documentation
  Make <identifier> lowercase as per CodingGuidelines
  Make <identifier> lowercase as per CodingGuidelines
  Make <identifier> lowercase as per CodingGuidelines
  CodingGuidelines: downcase placeholders in usage messages
2011-02-27 21:58:30 -08:00
Junio C Hamano
11e4b4fa49 Merge branch 'js/maint-merge-use-prepare-commit-msg-hook'
* js/maint-merge-use-prepare-commit-msg-hook:
  merge: honor prepare-commit-msg hook
2011-02-27 21:58:30 -08:00
Jay Soffian
d7e5c0cbfb Introduce CHERRY_PICK_HEAD
When a cherry-pick conflicts git advises:

 $ git commit -c <original commit id>

to preserve the original commit message and authorship. Instead, let's
record the original commit id in CHERRY_PICK_HEAD and advise:

  $ git commit -c CHERRY_PICK_HEAD

A later patch teaches git to handle the '-c CHERRY_PICK_HEAD' part.
Note that we record CHERRY_PICK_HEAD even in the case where there
are no conflicts so that we may use it to communicate authorship to
commit; this will then allow us to remove set_author_ident_env from
revert.c. However, we do not record CHERRY_PICK_HEAD when --no-commit
is used, as presumably the user intends to further edit the commit
and possibly even cherry-pick additional commits on top.

Tests and documentation contributed by Jonathan Nieder.

Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21 22:58:02 -08:00
Jeff King
99bfc6691d merge: enable progress reporting for rename detection
The user can enable or disable it explicitly with the new
--progress, but it defaults to checking isatty(2).

This works only with merge-recursive and subtree. In theory
we could pass a progress flag to other strategies, but none
of them support progress at this point, so let's wait until
they grow such a feature before worrying about propagating
it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-21 10:24:08 -08:00
Jay Soffian
65969d43d1 merge: honor prepare-commit-msg hook
When a merge is stopped due to conflicts or --no-commit, the
subsequent commit calls the prepare-commit-msg hook. However,
it is not called after a clean merge. Fix this inconsistency
by invoking the hook after clean merges as well.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15 13:35:35 -08:00
Michael J Gruber
23c6a803d3 Make <identifier> lowercase as per CodingGuidelines
*.c part for matches with '"[A-Z]+"'.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15 11:53:10 -08:00
Junio C Hamano
43f9f05301 Merge branch 'maint'
* maint:
  pull: do not display fetch usage on --help-all
  git-tag.txt: list all modes in the description
  commit,status: describe -u likewise
  add: describe --patch like checkout, reset
  commit,merge,tag: describe -m likewise
  clone,init: describe --template using the same wording
  commit,status: describe --porcelain just like push
  commit,tag: use same wording for -F
  configure: use AC_LANG_PROGRAM consistently
  string_list_append: always set util pointer to NULL
  correct type of EMPTY_TREE_SHA1_BIN
2011-02-15 11:03:22 -08:00
Michael J Gruber
3f40617566 commit,merge,tag: describe -m likewise
This also removes the superfluous "specify" and rewords the misleading
"if any" which sounds as if omitting "-m" would omit the merge commit
message. (It means "if a merge commit is created at all".)

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15 10:51:08 -08:00
Jonathan Nieder
67ac1e1d57 cherry-pick/revert: add support for -X/--strategy-option
For example, this would allow cherry-picking or reverting patches from
a piece of history with a different end-of-line style, like so:

	$ git revert -Xrenormalize old-problematic-commit

Currently that is possible with manual use of merge-recursive but the
cherry-pick/revert porcelain does not expose the functionality.

While at it, document the existing support for --strategy.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-28 11:27:56 -08:00
Junio C Hamano
6758af89e4 Merge branch 'jn/git-cmd-h-bypass-setup'
* jn/git-cmd-h-bypass-setup:
  update-index -h: show usage even with corrupt index
  merge -h: show usage even with corrupt index
  ls-files -h: show usage even with corrupt index
  gc -h: show usage even with broken configuration
  commit/status -h: show usage even with broken configuration
  checkout-index -h: show usage even in an invalid repository
  branch -h: show usage even in an invalid repository

Conflicts:
	builtin/merge.c
2010-12-12 21:49:50 -08:00
Junio C Hamano
657072f3ac Merge branch 'jh/notes-merge'
* jh/notes-merge: (23 commits)
  Provide 'git merge --abort' as a synonym to 'git reset --merge'
  cmd_merge(): Parse options before checking MERGE_HEAD
  Provide 'git notes get-ref' to easily retrieve current notes ref
  git notes merge: Add testcases for merging notes trees at different fanouts
  git notes merge: Add another auto-resolving strategy: "cat_sort_uniq"
  git notes merge: --commit should fail if underlying notes ref has moved
  git notes merge: List conflicting notes in notes merge commit message
  git notes merge: Manual conflict resolution, part 2/2
  git notes merge: Manual conflict resolution, part 1/2
  Documentation: Preliminary docs on 'git notes merge'
  git notes merge: Add automatic conflict resolvers (ours, theirs, union)
  git notes merge: Handle real, non-conflicting notes merges
  builtin/notes.c: Refactor creation of notes commits.
  git notes merge: Initial implementation handling trivial merges only
  builtin/notes.c: Split notes ref DWIMmery into a separate function
  notes.c: Use two newlines (instead of one) when concatenating notes
  (trivial) t3303: Indent with tabs instead of spaces for consistency
  notes.h/c: Propagate combine_notes_fn return value to add_note() and beyond
  notes.h/c: Allow combine_notes functions to remove notes
  notes.c: Reorder functions in preparation for next commit
  ...

Conflicts:
	builtin.h
2010-12-08 11:24:12 -08:00
Junio C Hamano
7d43de925b Merge branch 'cb/maint-orphan-merge-noclobber'
* cb/maint-orphan-merge-noclobber:
  do not overwrite untracked during merge from unborn branch
2010-11-24 15:55:36 -08:00
Johan Herland
35d2fffdb8 Provide 'git merge --abort' as a synonym to 'git reset --merge'
Teach 'git merge' the --abort option, which verifies the existence of
MERGE_HEAD and then invokes 'git reset --merge' to abort the current
in-progress merge and attempt to reconstruct the pre-merge state.

The reason for adding this option is to provide a user interface for
aborting an in-progress merge that is consistent with the interface
for aborting a rebase ('git rebase --abort'), aborting the application
of a patch series ('git am --abort'), and aborting an in-progress notes
merge ('git notes merge --abort').

The patch includes documentation and testcases that explain and verify
the various scenarios in which 'git merge --abort' can run. The
testcases also document the cases in which 'git merge --abort' is
unable to correctly restore the pre-merge state (look for the '###'
comments towards the bottom of t/t7609-merge-abort.sh).

This patch has been improved by the following contributions:
- Jonathan Nieder: Move test documentation into test_description

Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-17 13:23:55 -08:00
Johan Herland
2a22c1b35d cmd_merge(): Parse options before checking MERGE_HEAD
Reorder the initial part of builtin/merge.c:cmd_merge() so that command-line
options are parsed _before_ we load the index and check for MERGE_HEAD
(and exits if it exists). This does not change the behaviour of 'git merge',
but is needed in preparation for the implementation of 'git merge --abort'
(which requires MERGE_HEAD to be present).

This patch has been improved by the following contributions:
- Junio C Hamano: fixup minor style issues

Thanks-to: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-17 13:23:55 -08:00
Clemens Buchacher
172b6428d0 do not overwrite untracked during merge from unborn branch
In case HEAD does not point to a valid commit yet, merge is
implemented as a hard reset. This will cause untracked files to be
overwritten.

Instead, assume the empty tree for HEAD and do a regular merge. An
untracked file will cause the merge to abort and do nothing. If no
conflicting files are present, the merge will have the same effect
as a hard reset.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-15 09:27:33 -08:00
Matthieu Moy
13931236b9 Change incorrect "remote branch" to "remote tracking branch" in C code
(Just like we did for documentation already)

In the process, we change "non-remote branch" to "branch outside the
refs/remotes/ hierarchy" to avoid the ugly "non-remote-tracking branch".
The new formulation actually corresponds to how the code detects this
case (i.e. prefixcmp(refname, "refs/remotes")).

Also, we use 'remote-tracking branch' in generated merge messages (by
merge an fmt-merge-msg).

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-03 09:20:47 -07:00
Junio C Hamano
75b17fee72 Merge branch 'jf/merge-ignore-ws'
* jf/merge-ignore-ws:
  merge-recursive: options to ignore whitespace changes
  merge-recursive --patience
  ll-merge: replace flag argument with options struct
  merge-recursive: expose merge options for builtin merge
2010-10-26 21:40:54 -07:00
Nguyễn Thái Ngọc Duy
da53eec688 merge -h: show usage even with corrupt index
Part of a campaign to make sure "git <command> -h" works correctly
when run from distractingly bad repositories.

[jn: with rewritten log message and tests]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-22 11:04:53 -07:00
Junio C Hamano
02ef0ed710 Merge branch 'rr/fmt-merge-msg'
* rr/fmt-merge-msg:
  t6200-fmt-merge-msg: Exercise '--log' to configure shortlog length
  t6200-fmt-merge-msg: Exercise 'merge.log' to configure shortlog length
  merge: Make 'merge.log' an integer or boolean option
  merge: Make '--log' an integer option for number of shortlog entries
  fmt_merge_msg: Change fmt_merge_msg API to accept shortlog_len

Conflicts:
	builtin/merge.c
2010-09-29 13:48:20 -07:00
Ramkumar Ramachandra
bda3b8ff17 merge: Make 'merge.log' an integer or boolean option
Make 'merge.log' an integer or boolean option to set the number of
shortlog entries to display in the merge commit. Note that it defaults
to false, and that true means a default value of 20. Also update
corresponding documentation.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Thanks-to: Johannes Sixt <j.sixt@viscovery.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-09 11:39:23 -07:00
Ramkumar Ramachandra
96e9420cd3 merge: Make '--log' an integer option for number of shortlog entries
Change the command-line '--log' option from a boolean option to an
integer option, and parse the optional integer provided on the
command-line into the 'shortlog_len' variable. Also update the
documentation accordingly.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reported-by: Yaroslav Halchenko <debian@onerussian.com>
Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Thanks-to: Johannes Sixt <j.sixt@viscovery.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-09 11:39:20 -07:00
Ramkumar Ramachandra
1876166aaa fmt_merge_msg: Change fmt_merge_msg API to accept shortlog_len
Give "shortlog_len" parameter to the fmt_merge_msg(), remove its
"merge_summary" parameter, and remove fmt_merge_msg_shortlog() function.
In the updated API, shortlog_len == 0 means no shortlog is given.

The parameter "merge_title" controls if the title of the merge commit is
autogenerated (it reads something like "Merge branch ..."), and typically
it is set to true when the caller does not give its own message.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Mentored-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-09 11:39:20 -07:00
Junio C Hamano
c208e05bd9 Merge branch 'dg/local-mod-error-messages'
* dg/local-mod-error-messages:
  t7609-merge-co-error-msgs: test non-fast forward case too.
  Move "show_all_errors = 1" to setup_unpack_trees_porcelain()
  setup_unpack_trees_porcelain: take the whole options struct as parameter
  Move set_porcelain_error_msgs to unpack-trees.c and rename it

Conflicts:
	merge-recursive.c
2010-09-03 22:23:49 -07:00