Commit Graph

238 Commits

Author SHA1 Message Date
Stefano Lattarini
41ccfdd9c9 Correct common spelling mistakes in comments and tests
Most of these were found using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 13:38:40 -07:00
Miklos Vajna
21246dbb9e cherry-pick: make sure all input objects are commits
When a single argument was a non-commit, the error message used to be:

	fatal: BUG: expected exactly one commit from walk

For multiple arguments, when none of the arguments was a commit, the error was:

	fatal: empty commit set passed

Finally, when some of the arguments were non-commits, we ignored those
arguments.  Fix this bug and make sure all arguments are commits, and
for the first non-commit, error out with:

	fatal: <name>: Can't cherry-pick a <type>

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-11 09:54:25 -07:00
Junio C Hamano
900c8ecb5c Merge branch 'bc/append-signed-off-by'
Consolidate codepaths that inspect log-message-to-be and decide to
add a new Signed-off-by line in various commands.

* bc/append-signed-off-by:
  git-commit: populate the edit buffer with 2 blank lines before s-o-b
  Unify appending signoff in format-patch, commit and sequencer
  format-patch: update append_signoff prototype
  t4014: more tests about appending s-o-b lines
  sequencer.c: teach append_signoff to avoid adding a duplicate newline
  sequencer.c: teach append_signoff how to detect duplicate s-o-b
  sequencer.c: always separate "(cherry picked from" from commit body
  sequencer.c: require a conforming footer to be preceded by a blank line
  sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
  t/t3511: add some tests of 'cherry-pick -s' functionality
  t/test-lib-functions.sh: allow to specify the tag name to test_commit
  commit, cherry-pick -s: remove broken support for multiline rfc2822 fields
  sequencer.c: rework search for start of footer to improve clarity
2013-04-01 08:59:24 -07:00
Brandon Casey
8c613fd5ef git-commit: populate the edit buffer with 2 blank lines before s-o-b
'commit -s' populates the edit buffer with a blank line before the
Signed-off-by line, to allow the user to immediately start typing
the log message.  But commit 33f2f9ab removed this space, forcing
the user to first push the Signed-off-by line down to open a place
to type the log message.

Fix this regression and let's ensure that the Signed-off-by line is
preceded by two blank lines, instead of just one, to hint that
something should be filled in, and that a blank line should separate
it from the body and the Signed-off-by line.

Add a test for this behavior.

Reported-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-23 00:03:00 -08:00
Brandon Casey
33f2f9ab4e sequencer.c: teach append_signoff to avoid adding a duplicate newline
Teach append_signoff to detect whether a blank line exists at the position
that the signed-off-by line will be added, and refrain from adding an
additional one if one already exists.  Or, add an additional line if one
is needed to make sure the new footer is separated from the message body
by a blank line.

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:19:34 -08:00
Brandon Casey
bab4d1097c sequencer.c: teach append_signoff how to detect duplicate s-o-b
Teach append_signoff how to detect a duplicate s-o-b in the commit footer.
This is in preparation to unify the append_signoff implementations in
log-tree.c and sequencer.c.

Fixes test in t3511.

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:17:10 -08:00
Brandon Casey
b971e04f54 sequencer.c: always separate "(cherry picked from" from commit body
Start treating the "(cherry picked from" line added by cherry-pick -x
the same way that the s-o-b lines are treated.  Namely, separate them
from the main commit message body with an empty line.

Introduce tests to test this functionality.

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:15:43 -08:00
Brandon Casey
2cdccad160 sequencer.c: require a conforming footer to be preceded by a blank line
Currently, append_signoff() performs a search for the last line of the
commit buffer by searching back from the end until it hits a newline.  If
it reaches the beginning of the buffer without finding a newline, that
means either the commit message was empty, or there was only one line in it.
In this case, append_signoff will skip the call to has_conforming_footer
since it already knows that it is necessary to append a newline before
appending the sob.

Let's perform this function inside of has_conforming_footer where it
appropriately belongs and generalize it so that we require that the
footer paragraph be an actual distinct paragraph separated by a blank
line.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:14:33 -08:00
Brandon Casey
cd650a4eee sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
When 'cherry-pick -s' is used to append a signed-off-by line to a cherry
picked commit, it does not currently detect the "(cherry picked from..."
that may have been appended by a previous 'cherry-pick -x' as part of the
s-o-b footer and it will insert a blank line before appending a new s-o-b.

Let's detect "(cherry picked from...)" as part of the footer so that we
will produce this:

   Signed-off-by: A U Thor <author@example.com>
   (cherry picked from da39a3ee5e6b4b0d3255bfef95601890afd80709)
   Signed-off-by: C O Mmitter <committer@example.com>

instead of this:

   Signed-off-by: A U Thor <author@example.com>
   (cherry picked from da39a3ee5e6b4b0d3255bfef95601890afd80709)

   Signed-off-by: C O Mmitter <committer@example.com>

[with improvements from Jonathan Nieder]

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:09:40 -08:00
Brandon Casey
9b15152209 commit, cherry-pick -s: remove broken support for multiline rfc2822 fields
Starting with c1e01b0c (commit: More generous accepting of RFC-2822 footer
lines, 2009-10-28), "git commit -s" carefully parses the last paragraph of
each commit message to check if it consists only of RFC2822-style headers,
in which case the signoff will be added as a new line in the same list:

   Reported-by: Reporter <reporter@example.com>
   Signed-off-by: Author <author@example.com>
   Acked-by: Lieutenant <lt@example.com>

It even included support for accepting indented continuation lines for
multiline fields.  Unfortunately the multiline field support is broken
because it checks whether buf[k] (the first character of the *next* line)
instead of buf[i] is a whitespace character.  The result is that any footer
with a continuation line is not accepted, since the last continuation line
neither starts with an RFC2822 field name nor is followed by a continuation
line.

That this has remained broken for so long is good evidence that nobody
actually needed multiline fields.  Rip out the broken continuation support.

There should be no functional change.

[Thanks to Jonathan Nieder for the excellent commit message]

Signed-off-by: Brandon Casey <bcasey@nvidia.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:08:45 -08:00
Jonathan Nieder
fa1727fb21 sequencer.c: rework search for start of footer to improve clarity
This code sequence is somewhat difficult to read.  Let's rewrite it and add
some comments to improve clarity.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-12 11:07:53 -08:00
Martin von Zweigbergk
334ae39745 learn to pick/revert into unborn branch
cherry-picking into an unborn branch should work, so make it work,
with or without --ff.

Cherry-picking anything other than a commit that only adds files, will
naturally result in conflicts. Similarly, revert also works, but will
result in conflicts unless the specified revision only deletes files.

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-23 10:40:37 -08:00
Junio C Hamano
6b8731258d Merge branch 'jc/same-encoding'
Various codepaths checked if two encoding names are the same using
ad-hoc code and some of them ended up asking iconv() to convert
between "utf8" and "UTF-8".  The former is not a valid way to spell
the encoding name, but often people use it by mistake, and we
equated them in some but not all codepaths. Introduce a new helper
function to make these codepaths consistent.

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

Conflicts:
	builtin/mailinfo.c
2012-11-15 10:24:05 -08:00
Junio C Hamano
0e18bcd5e9 reencode_string(): introduce and use same_encoding()
Callers of reencode_string() that re-encodes a string from one
encoding to another all used ad-hoc way to bypass the case where the
input and the output encodings are the same.  Some did strcmp(),
some did strcasecmp(), yet some others when converting to UTF-8 used
is_encoding_utf8().

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

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-04 08:10:33 -05:00
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
06e211acc6 Merge branch 'jc/make-static'
Turn many file-scope private symbols to static to reduce the
global namespace contamination.

* jc/make-static:
  sequencer.c: mark a private file-scope symbol as static
  ident.c: mark private file-scope symbols as static
  trace.c: mark a private file-scope symbol as static
  wt-status.c: mark a private file-scope symbol as static
  read-cache.c: mark a private file-scope symbol as static
  strbuf.c: mark a private file-scope symbol as static
  sha1-array.c: mark a private file-scope symbol as static
  symlinks.c: mark private file-scope symbols as static
  notes.c: mark a private file-scope symbol as static
  rerere.c: mark private file-scope symbols as static
  graph.c: mark private file-scope symbols as static
  diff.c: mark a private file-scope symbol as static
  commit.c: mark a file-scope private symbol as static
  builtin/notes.c: mark file-scope private symbols as static
2012-09-18 14:37:46 -07:00
Junio C Hamano
250f2492a4 sequencer.c: mark a private file-scope symbol as static
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-15 23:20:40 -07:00
Miklos Vajna
5ed75e2a3f cherry-pick: don't forget -s on failure
In case 'git cherry-pick -s <commit>' failed, the user had to use 'git
commit -s' (i.e. state the -s option again), which is easy to forget
about.  Instead, write the signed-off-by line early, so plain 'git
commit' will have the same result.

Also update 'git commit -s', so that in case there is already a relevant
Signed-off-by line before the Conflicts: line, it won't add one more at
the end of the message. If there is no such line, then add it before the
the Conflicts: line.

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-14 10:04:29 -07:00
Junio C Hamano
c2b927932d Merge branch 'mz/cherry-pick-cmdline-order'
"git cherry-pick A C B" used to replay changes in A and then B and
then C if these three commits had committer timestamps in that
order, which is not what the user who said "A C B" naturally expects.

* mz/cherry-pick-cmdline-order:
  cherry-pick/revert: respect order of revisions to pick
  demonstrate broken 'git cherry-pick three one two'
  teach log --no-walk=unsorted, which avoids sorting
2012-09-10 15:42:55 -07:00
Martin von Zweigbergk
a73e22e963 cherry-pick/revert: respect order of revisions to pick
When giving multiple individual revisions to cherry-pick or revert, as
in 'git cherry-pick A B' or 'git revert B A', one would expect them to
be picked/reverted in the order given on the command line. They are
instead ordered by their commit timestamp -- in chronological order
for "cherry-pick" and in reverse chronological order for
"revert". This matches the order in which one would usually give them
on the command line, making this bug somewhat hard to notice. Still,
it has been reported at least once before [1].

It seems like the chronological sorting happened by accident because
the revision walker has traditionally always sorted commits in reverse
chronological order when rev_info.no_walk was enabled. In the case of
'git revert B A' where B is newer than A, this sorting is a no-op. For
'git cherry-pick A B', the sorting would reverse the arguments, but
because the sequencer also flips the rev_info.reverse flag when
picking (as opposed to reverting), the end result is a chronological
order. The rev_info.reverse flag was probably flipped so that the
revision walker emits B before C in 'git cherry-pick A..C'; that it
happened to effectively undo the unexpected sorting done when not
walking, was probably a coincidence that allowed this bug to happen at
all.

Fix the bug by telling the revision walker not to sort the commits
when not walking. The only case we want to reverse the order is now
when cherry-picking and walking revisions (rev_info.no_walk = 0).

 [1] http://thread.gmane.org/gmane.comp.version-control.git/164794

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-30 14:00:23 -07:00
Chris Webb
4bee958479 cherry-pick: add --allow-empty-message option
Scripts such as "git rebase -i" cannot currently cherry-pick commits
which have an empty commit message, as git cherry-pick calls git
commit without the --allow-empty-message option.

Add an --allow-empty-message option to git cherry-pick which is passed
through to git commit, so this behaviour can be overridden.

Signed-off-by: Chris Webb <chris@arachsys.com>
Reviewed-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-06 09:59:53 -07:00
Junio C Hamano
264d5a717b Merge branch 'nh/empty-rebase'
* nh/empty-rebase:
  cherry-pick: regression fix for empty commits
2012-06-01 13:28:19 -07:00
Junio C Hamano
ac2b0e8fb7 cherry-pick: regression fix for empty commits
The earlier "--keep-redundant-commit" series broke "cherry-pick"
that is given a commit whose change is already in the current
history. Such a cherry-pick would result in an empty change, and
should stop with an error, telling the user that conflict resolution
may have made the result empty (which is exactly what is happening),
but we silently dropped the change on the floor without any message
nor non-zero exit code.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-29 17:14:41 -07:00
Junio C Hamano
5543501ced Merge branch 'nh/empty-rebase'
By Neil Horman
* nh/empty-rebase:
  git cherry-pick: do not dereference a potential NULL pointer
2012-05-07 13:29:16 -07:00
Neil Horman
4b580061b3 git cherry-pick: do not dereference a potential NULL pointer
In the case the pointer could be NULL, the function that gave the caller
the NULL pointer would already have issued an error message, so simply
returning early with an error status without issuing a new message is
sufficient.  The same for parse_commit() that will show necessary error
message when the argument is not NULL, and will return error silently
when the argument is NULL.

Noticed-by: Michael Mueller
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-03 15:41:35 -07:00
Junio C Hamano
1692579dd3 Merge branch 'nh/empty-rebase'
"git rebase" learned to optionally keep commits that do not introduce
any change in the original history.

By Neil Horman
* nh/empty-rebase:
  git-rebase: add keep_empty flag
  git-cherry-pick: Add test to validate new options
  git-cherry-pick: Add keep-redundant-commits option
  git-cherry-pick: add allow-empty option
2012-04-30 14:58:01 -07:00
Junio C Hamano
6a8989709e Merge branch 'rs/commit-list-append'
There is no need for "commit_list_reverse()" function that only invites
inefficient code.

By René Scharfe
* rs/commit-list-append:
  commit: remove commit_list_reverse()
  revision: append to list instead of insert and reverse
  sequencer: export commit_list_append()
2012-04-29 17:51:30 -07:00
Junio C Hamano
f5b121aef3 Merge branch 'rt/cherry-revert-conflict-summary'
In the older days, the header "Conflicts:" in "cherry-pick" and
"merge" was separated by a blank line from the list of paths that
follow for readability, but when "merge" was rewritten in C, we lost
it by mistake. Remove the newline from "cherry-pick" to make them
match again.

By Ralf Thielow
* rt/cherry-revert-conflict-summary:
  sequencer: remove additional blank line
2012-04-27 13:58:53 -07:00
René Scharfe
89b5f1d9c5 sequencer: export commit_list_append()
This function can be used in other parts of git.  Give it a new home
in commit.c.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-25 14:51:17 -07:00
Neil Horman
b27cfb0d8d git-cherry-pick: Add keep-redundant-commits option
The git-cherry-pick --allow-empty command by default only preserves empty
commits that were originally empty, i.e only those commits for which
<commit>^{tree} and <commit>^^{tree} are equal.  By default commits which are
non-empty, but were made empty by the inclusion of a prior commit on the current
history are filtered out.  This option allows us to override that behavior and
include redundant commits as empty commits in the change history.

Note that this patch changes the default behavior of git cherry-pick slightly.
Prior to this patch all commits in a cherry-pick sequence were applied and git
commit was run.  The implication here was that, if a commit was redundant, and
the commit did not trigger the fast forward logic, the git commit operation, and
therefore the git cherry-pick operation would fail, displaying the cherry pick
advice (i.e. run git commit --allow-empty).  With this patch however, such
redundant commits are automatically skipped without stopping, unless
--keep-redundant-commits is specified, in which case, they are automatically
applied as empty commits.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-24 14:52:12 -07:00
Ralf Thielow
51120683ec sequencer: remove additional blank line
Remove an additional blank line between the
headline and the list of conflicted files after
doing a recursive merge.

Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-19 13:48:01 -07:00
Neil Horman
df478b744c git-cherry-pick: add allow-empty option
git cherry-pick fails when picking a non-ff commit that is empty.  The advice
given with the failure is that a git-commit --allow-empty should be issued to
explicitly add the empty commit during the cherry pick.  This option allows a
user to specify before hand that they want to keep the empty commit.  This
eliminates the need to issue both a cherry pick and a commit operation.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-11 13:46:08 -07:00
Jeff King
cba595bd21 drop casts from users EMPTY_TREE_SHA1_BIN
This macro already evaluates to the correct type, as it
casts the string literal to "unsigned char *" itself
(and callers who want the literal can use the _LITERAL
form).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-23 13:52:05 -07:00
Phil Hord
ed727b192b cherry-pick: No advice to commit if --no-commit
When cherry-pick fails it offers a helpful hint about how to
proceed.  The hint tells the user how to do the cleanup
needed by the conflicted cherry-pick and finish the job after
conflict resolution.  In case of cherry-pick --no-commit, the
hint goes too far. It tells the user to finish up with
'git commit'.  That is not what this git-cherry-pick was
trying to do in the first place.

Restrict the hint in case of --no-commit to avoid giving this
extra advice.

Also, add a test verifying the reduced hint for the --no-commit
version of cherry-pick.

Signed-off-by: Phil Hord <hordp@cisco.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 11:13:43 -08:00
Junio C Hamano
7010146f90 Merge branch 'rr/sequencer'
* rr/sequencer:
  sequencer: factor code out of revert builtin
  revert: prepare to move replay_action to header

Conflicts:
	builtin/revert.c
2012-01-31 22:01:14 -08:00
Ramkumar Ramachandra
043a4492b3 sequencer: factor code out of revert builtin
Expose the cherry-picking machinery through a public
sequencer_pick_revisions() (renamed from pick_revisions() in
builtin/revert.c), so that cherry-picking and reverting are special
cases of a general sequencer operation.  The cherry-pick builtin is
now a thin wrapper that does command-line argument parsing before
calling into sequencer_pick_revisions().  In the future, we can write
a new "foo" builtin that calls into the sequencer like:

  memset(&opts, 0, sizeof(opts));
  opts.action = REPLAY_FOO;
  opts.revisions = xmalloc(sizeof(*opts.revs));
  parse_args_populate_opts(argc, argv, &opts);
  init_revisions(opts.revs);
  sequencer_pick_revisions(&opts);

This patch does not intend to make any functional changes.  Check
with:

  $ git blame -s -C HEAD^..HEAD -- sequencer.c | grep -C3 '^[^^]'

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-11 18:11:49 -08:00
Jonathan Nieder
d596118d7a revert: stop creating and removing sequencer-old directory
Now that "git reset" no longer implicitly removes .git/sequencer that
the operator may or may not have wanted to keep, the logic to write a
backup copy of .git/sequencer and remove it when stale is not needed
any more.  Simplify the sequencer API and repository layout by
dropping it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 13:33:53 -08:00
Ramkumar Ramachandra
26ae337be1 revert: Introduce --reset to remove sequencer state
To explicitly remove the sequencer state for a fresh cherry-pick or
revert invocation, introduce a new subcommand called "--reset" to
remove the sequencer state.

Take the opportunity to publicly expose the sequencer paths, and a
generic function called "remove_sequencer_state" that various git
programs can use to remove the sequencer state in a uniform manner;
"git reset" uses it later in this series.  Introducing this public API
is also in line with our long-term goal of eventually factoring out
functions from revert.c into a generic commit sequencer.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:41:21 -07:00