Граф коммитов

414 Коммитов

Автор SHA1 Сообщение Дата
Junio C Hamano 064e0b2d4c Merge branch 'pw/rebase-i-author-script-fix'
Recent "git rebase -i" update started to write bogusly formatted
author-script, with a matching broken reading code.  These are
fixed.

* pw/rebase-i-author-script-fix:
  sequencer: fix quoting in write_author_script
  sequencer: handle errors from read_author_ident()
2018-09-04 14:31:38 -07:00
Jean-Noël Avila 27c929edd6 i18n: fix mistakes in translated strings
Fix typos and convert a question which does not expect to be replied
to a simple advice.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-23 14:29:12 -07:00
Junio C Hamano 5a5c5e9565 Merge branch 'pw/rebase-i-merge-segv-fix'
"git rebase -i", when a 'merge <branch>' insn in its todo list
fails, segfaulted, which has been (minimally) corrected.

* pw/rebase-i-merge-segv-fix:
  rebase -i: fix SIGSEGV when 'merge <branch>' fails
  t3430: add conflicting commit
2018-08-20 12:41:33 -07:00
Junio C Hamano 36fd1e843b Merge branch 'pw/rebase-i-squash-number-fix'
When "git rebase -i" is told to squash two or more commits into
one, it labeled the log message for each commit with its number.
It correctly called the first one "1st commit", but the next one
was "commit #1", which was off-by-one.  This has been corrected.

* pw/rebase-i-squash-number-fix:
  rebase -i: fix numbering in squash message
2018-08-20 12:41:33 -07:00
Junio C Hamano dc0f6f9e1d Merge branch 'nd/no-the-index'
The more library-ish parts of the codebase learned to work on the
in-core index-state instance that is passed in by their callers,
instead of always working on the singleton "the_index" instance.

* nd/no-the-index: (24 commits)
  blame.c: remove implicit dependency on the_index
  apply.c: remove implicit dependency on the_index
  apply.c: make init_apply_state() take a struct repository
  apply.c: pass struct apply_state to more functions
  resolve-undo.c: use the right index instead of the_index
  archive-*.c: use the right repository
  archive.c: avoid access to the_index
  grep: use the right index instead of the_index
  attr: remove index from git_attr_set_direction()
  entry.c: use the right index instead of the_index
  submodule.c: use the right index instead of the_index
  pathspec.c: use the right index instead of the_index
  unpack-trees: avoid the_index in verify_absent()
  unpack-trees: convert clear_ce_flags* to avoid the_index
  unpack-trees: don't shadow global var the_index
  unpack-trees: add a note about path invalidation
  unpack-trees: remove 'extern' on function declaration
  ls-files: correct index argument to get_convert_attr_ascii()
  preload-index.c: use the right index instead of the_index
  dir.c: remove an implicit dependency on the_index in pathspec code
  ...
2018-08-20 11:33:53 -07:00
Junio C Hamano 750eb11d8f Merge branch 'js/rebase-merges-exec-fix'
The "--exec" option to "git rebase --rebase-merges" placed the exec
commands at wrong places, which has been corrected.

* js/rebase-merges-exec-fix:
  rebase --exec: make it work with --rebase-merges
  t3430: demonstrate what -r, --autosquash & --exec should do
2018-08-20 11:33:48 -07:00
Junio C Hamano 1bc505b476 Merge branch 'es/rebase-i-author-script-fix'
The "author-script" file "git rebase -i" creates got broken when
we started to move the command away from shell script, which is
getting fixed now.

* es/rebase-i-author-script-fix:
  sequencer: don't die() on bogus user-edited timestamp
  sequencer: fix "rebase -i --root" corrupting author header timestamp
  sequencer: fix "rebase -i --root" corrupting author header timezone
  sequencer: fix "rebase -i --root" corrupting author header
2018-08-17 13:09:54 -07:00
Phillip Wood bc9238bb09 rebase -i: fix SIGSEGV when 'merge <branch>' fails
If a merge command in the todo list specifies just a branch to merge
with no -C/-c argument then item->commit is NULL. This means that if
there are merge conflicts error_with_patch() is passed a NULL commit
which causes a segmentation fault when make_patch() tries to look it up.

This commit implements a minimal fix which fixes the crash and allows
the user to successfully commit a conflict resolution with 'git rebase
--continue'. It does not write .git/rebase-merge/patch,
.git/rebase-merge/stopped-sha or update REBASE_HEAD. To sensibly get the
hashes of the merge parents would require refactoring do_merge() to
extract the code that parses the merge parents into a separate function
which error_with_patch() could then use to write the parents into the
stopped-sha file. To create meaningful output make_patch() and 'git
rebase --show-current-patch' would also need to be modified to diff the
merge parent and merge base in this case.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-16 08:54:50 -07:00
Junio C Hamano 4bea8485e3 Merge branch 'nd/i18n'
Many more strings are prepared for l10n.

* nd/i18n: (23 commits)
  transport-helper.c: mark more strings for translation
  transport.c: mark more strings for translation
  sha1-file.c: mark more strings for translation
  sequencer.c: mark more strings for translation
  replace-object.c: mark more strings for translation
  refspec.c: mark more strings for translation
  refs.c: mark more strings for translation
  pkt-line.c: mark more strings for translation
  object.c: mark more strings for translation
  exec-cmd.c: mark more strings for translation
  environment.c: mark more strings for translation
  dir.c: mark more strings for translation
  convert.c: mark more strings for translation
  connect.c: mark more strings for translation
  config.c: mark more strings for translation
  commit-graph.c: mark more strings for translation
  builtin/replace.c: mark more strings for translation
  builtin/pack-objects.c: mark more strings for translation
  builtin/grep.c: mark strings for translation
  builtin/config.c: mark more strings for translation
  ...
2018-08-15 15:08:23 -07:00
Phillip Wood dd2e36ebac rebase -i: fix numbering in squash message
Commit e12a7ef597 ("rebase -i: Handle "combination of <n> commits" with
GETTEXT_POISON", 2018-04-27) changed the way that individual commit
messages are labelled when squashing commits together. In doing so a
regression was introduced where the numbering of the messages is off by
one. This commit fixes that and adds a test for the numbering.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-15 10:50:24 -07:00
Nguyễn Thái Ngọc Duy 07096c9696 cache-tree: wrap the_index based wrappers with #ifdef
This puts update_main_cache_tree() and write_cache_as_tree() in the
same group of "index compat" functions that assume the_index
implicitly, which should only be used within builtin/ or t/helper.

sequencer.c is also updated to not use these functions. As of now, no
files outside builtin/ use these functions anymore.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-13 14:14:42 -07:00
Johannes Schindelin 1ace63bc39 rebase --exec: make it work with --rebase-merges
The idea of `--exec` is to append an `exec` call after each `pick`.

Since the introduction of fixup!/squash! commits, this idea was extended
to apply to "pick, possibly followed by a fixup/squash chain", i.e. an
exec would not be inserted between a `pick` and any of its corresponding
`fixup` or `squash` lines.

The current implementation uses a dirty trick to achieve that: it
assumes that there are only pick/fixup/squash commands, and then
*inserts* the `exec` lines before any `pick` but the first, and appends
a final one.

With the todo lists generated by `git rebase --rebase-merges`, this
simple implementation shows its problems: it produces the exact wrong
thing when there are `label`, `reset` and `merge` commands.

Let's change the implementation to do exactly what we want: look for
`pick` lines, skip any fixup/squash chains, and then insert the `exec`
line. Lather, rinse, repeat.

Note: we take pains to insert *before* comment lines whenever possible,
as empty commits are represented by commented-out pick lines (and we
want to insert a preceding pick's exec line *before* such a line, not
afterward).

While at it, also add `exec` lines after `merge` commands, because they
are similar in spirit to `pick` commands: they add new commits.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-09 08:56:41 -07:00
Phillip Wood 4aa5ff9409 sequencer: fix quoting in write_author_script
Single quotes should be escaped as \' not \\'. The bad quoting breaks
the interactive version of 'rebase --root' (which is used when there
is no '--onto' even if the user does not specify --interactive) for
authors that contain "'" as sq_dequote() called by read_author_ident()
errors out on the bad quoting.

For other interactive rebases this only affects external scripts that
read the author script and users whose git is upgraded from the shell
version of rebase -i while rebase was stopped when the author contains
"'". This is because the parsing in read_env_script() expected the
broken quoting.

This patch includes code to handle the broken quoting when
git has been upgraded while rebase was stopped. It does this by
detecting the missing "'" at the end of the GIT_AUTHOR_DATE line to see
if it should dequote \\' as "'". Note this is only implemented for
normal picks, not for creating a new root commit (rebase will stop with
an error complaining out bad quoting in that case).

The fallback code has been manually tested by reverting both the quoting
fixes in write_author_script() and the previous fix for the missing "'"
at the end of the GIT_AUTHOR_DATE line and running
t3404-rebase-interactive.sh.

Ideally rebase and am would share the same code for reading and
writing the author script, but this commit just fixes the immediate
bug.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-07 14:52:07 -07:00
Phillip Wood 5dfcfe1eb2 sequencer: handle errors from read_author_ident()
Check for a NULL return value from read_author_ident() that indicates
an error. Previously the NULL author was passed to commit_tree() which
would then fallback to using the default author when creating the new
commit. This changed the date and potentially the author of the commit
which corrupted the author data compared to its expected value.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-07 14:52:06 -07:00
Junio C Hamano cd3f067815 Merge branch 'bc/sequencer-export-work-tree-as-well'
"git rebase" started exporting GIT_DIR environment variable and
exposing it to hook scripts when part of it got rewritten in C.
Instead of matching the old scripted Porcelains' behaviour,
compensate by also exporting GIT_WORK_TREE environment as well to
lessen the damage.  This can harm existing hooks that want to
operate on different repository, but the current behaviour is
already broken for them anyway.

* bc/sequencer-export-work-tree-as-well:
  sequencer: pass absolute GIT_WORK_TREE to exec commands
2018-08-02 15:30:45 -07:00
Junio C Hamano 2b9afea372 Merge branch 'js/rebase-merge-octopus'
"git rebase --rebase-merges" mode now handles octopus merges as
well.

* js/rebase-merge-octopus:
  rebase --rebase-merges: adjust man page for octopus support
  rebase --rebase-merges: add support for octopus merges
  merge: allow reading the merge commit message from a file
2018-08-02 15:30:44 -07:00
Junio C Hamano 3a2a1dc170 Merge branch 'sb/object-store-lookup'
lookup_commit_reference() and friends have been updated to find
in-core object for a specific in-core repository instance.

* sb/object-store-lookup: (32 commits)
  commit.c: allow lookup_commit_reference to handle arbitrary repositories
  commit.c: allow lookup_commit_reference_gently to handle arbitrary repositories
  tag.c: allow deref_tag to handle arbitrary repositories
  object.c: allow parse_object to handle arbitrary repositories
  object.c: allow parse_object_buffer to handle arbitrary repositories
  commit.c: allow get_cached_commit_buffer to handle arbitrary repositories
  commit.c: allow set_commit_buffer to handle arbitrary repositories
  commit.c: migrate the commit buffer to the parsed object store
  commit-slabs: remove realloc counter outside of slab struct
  commit.c: allow parse_commit_buffer to handle arbitrary repositories
  tag: allow parse_tag_buffer to handle arbitrary repositories
  tag: allow lookup_tag to handle arbitrary repositories
  commit: allow lookup_commit to handle arbitrary repositories
  tree: allow lookup_tree to handle arbitrary repositories
  blob: allow lookup_blob to handle arbitrary repositories
  object: allow lookup_object to handle arbitrary repositories
  object: allow object_as_type to handle arbitrary repositories
  tag: add repository argument to deref_tag
  tag: add repository argument to parse_tag_buffer
  tag: add repository argument to lookup_tag
  ...
2018-08-02 15:30:42 -07:00
Eric Sunshine 5522bbac20 sequencer: don't die() on bogus user-edited timestamp
read_author_ident() is careful to handle errors "gently" when parsing
"rebase-merge/author-script" by printing a suitable warning and
returning NULL; it never die()'s. One possible reason that parsing might
fail is that "rebase-merge/author-script" has been hand-edited in such a
way which corrupts it or the information it contains.

However, read_author_ident() invokes fmt_ident() which is not so careful
about failing "gently". It will die() if it encounters a malformed
timestamp. Since read_author_ident() doesn't want to die() and since
it's dealing with possibly hand-edited data, take care to avoid passing
a bogus timestamp to fmt_ident().

A more "correctly engineered" fix would be to add a "gentle" version of
fmt_ident(), however, such a change it outside the scope of the bug-fix
series. If fmt_ident() ever does grow a "gentle" cousin, then the manual
timestamp check added here can be retired.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-31 11:35:00 -07:00
Eric Sunshine 67f16e3d3f sequencer: fix "rebase -i --root" corrupting author header timestamp
When "git rebase -i --root" creates a new root commit, it corrupts the
"author" header's timestamp by prepending a "@":

    author A U Thor <author@example.com> @1112912773 -0700

The commit parser is very strict about the format of the "author"
header, and does not allow a "@" in that position.

The "@" comes from GIT_AUTHOR_DATE in "rebase-merge/author-script",
signifying a Unix epoch-based timestamp, however, read_author_ident()
incorrectly allows it to slip into the commit's "author" header, thus
corrupting it.

One possible fix would be simply to filter out the "@" when constructing
the "author" header timestamp, however, a more correct fix is to parse
the GIT_AUTHOR_DATE date (via parse_date()) and format the parsed result
into the "author" header. Since "rebase-merge/author-script" may be
edited by the user, this approach has the extra benefit of catching
other potential timestamp corruption due to hand-editing.

We can do better than calling parse_date() ourselves and constructing
the "author" header manually, however, by instead taking advantage of
fmt_ident() which does this work for us.

The benefits of using fmt_ident() are twofold. First, it simplifies the
logic considerably by allowing us to avoid the complexity of building
the "author" header in parallel with and in the same buffer from which
"rebase-merge/author-script" is being parsed. Instead, fmt_ident() is
invoked to compose the header after parsing is complete.

Second, fmt_ident() is careful to prevent "crud" from polluting the
composed ident. As with validating GIT_AUTHOR_DATE, this "crud"
avoidance prevents other (possibly hand-edited) bogus author information
from "rebase-merge/author-script" from corrupting the commit object.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-31 11:32:12 -07:00
Eric Sunshine 0f16c09aae sequencer: fix "rebase -i --root" corrupting author header timezone
When "git rebase -i --root" creates a new root commit, it corrupts the
"author" header's timezone by repeating the last digit:

    author A U Thor <author@example.com> @1112912773 -07000

This is due to two bugs.

First, write_author_script() neglects to add the closing quote to the
value of GIT_AUTHOR_DATE when generating "rebase-merge/author-script".

Second, although sq_dequote() correctly diagnoses the missing closing
quote, read_author_ident() ignores sq_dequote()'s return value and
blindly uses the result of the aborted dequote.

sq_dequote() performs dequoting in-place by removing quoting and
shifting content downward. When it detects misquoting (lack of closing
quote, in this case), it gives up and returns an error without inserting
a NUL-terminator at the end of the shifted content, which explains the
duplicated last digit in the timezone.

(Note that the "@" preceding the timestamp is a separate bug which
will be fixed subsequently.)

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-31 11:31:42 -07:00
Eric Sunshine ca3e1826a0 sequencer: fix "rebase -i --root" corrupting author header
When "git rebase -i --root" creates a new root commit (say, by swapping
in a different commit for the root), it corrupts the commit's "author"
header with trailing garbage:

    author A U Thor <author@example.com> @1112912773 -07000or@example.com

This is a result of read_author_ident() neglecting to NUL-terminate the
buffer into which it composes the "author" header.

(Note that the "@" preceding the timestamp and the extra "0" in the
timezone are separate bugs which will be fixed subsequently.)

Security considerations: Construction of the "author" header by
read_author_ident() happens in-place and in parallel with parsing the
content of "rebase-merge/author-script" which occupies the same buffer.
This is possible because the constructed "author" header is always
smaller than the content of "rebase-merge/author-script". Despite
neglecting to NUL-terminate the constructed "author" header, memory is
never accessed (either by read_author_ident() or its caller) beyond the
allocated buffer since a NUL-terminator is present at the end of the
loaded "rebase-merge/author-script" content, and additional NUL's are
inserted as part of the parsing process.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-31 11:31:08 -07:00
Junio C Hamano d6465fb4fc Merge branch 'as/sequencer-customizable-comment-char'
Honor core.commentchar when preparing the list of commits to replay
in "rebase -i".

* as/sequencer-customizable-comment-char:
  sequencer: use configured comment character
2018-07-24 14:50:51 -07:00
Junio C Hamano d94cecfe75 Merge branch 'jk/empty-pick-fix'
Handling of an empty range by "git cherry-pick" was inconsistent
depending on how the range ended up to be empty, which has been
corrected.

* jk/empty-pick-fix:
  sequencer: don't say BUG on bogus input
  sequencer: handle empty-set cases consistently
2018-07-24 14:50:48 -07:00
Junio C Hamano 00da9b2091 Merge branch 'bb/pedantic'
The codebase has been updated to compile cleanly with -pedantic
option.

* bb/pedantic:
  utf8.c: avoid char overflow
  string-list.c: avoid conversion from void * to function pointer
  sequencer.c: avoid empty statements at top level
  convert.c: replace "\e" escapes with "\033".
  fixup! refs/refs-internal.h: avoid forward declaration of an enum
  refs/refs-internal.h: avoid forward declaration of an enum
  fixup! connect.h: avoid forward declaration of an enum
  connect.h: avoid forward declaration of an enum
2018-07-24 14:50:47 -07:00
Nguyễn Thái Ngọc Duy 02127c639b sequencer.c: mark more strings for translation
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-23 11:19:10 -07:00
Nguyễn Thái Ngọc Duy 1a07e59c3e Update messages in preparation for i18n
Many messages will be marked for translation in the following
commits. This commit updates some of them to be more consistent and
reduce diff noise in those commits. Changes are

- keep the first letter of die(), error() and warning() in lowercase
- no full stop in die(), error() or warning() if it's single sentence
  messages
- indentation
- some messages are turned to BUG(), or prefixed with "BUG:" and will
  not be marked for i18n
- some messages are improved to give more information
- some messages are broken down by sentence to be i18n friendly
  (on the same token, combine multiple warning() into one big string)
- the trailing \n is converted to printf_ln if possible, or deleted
  if not redundant
- errno_errno() is used instead of explicit strerror()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-23 11:19:09 -07:00
Junio C Hamano b345b77b3a Merge branch 'en/rebase-i-microfixes'
* en/rebase-i-microfixes:
  git-rebase--merge: modernize "git-$cmd" to "git $cmd"
  Fix use of strategy options with interactive rebases
  t3418: add testcase showing problems with rebase -i and strategy options
2018-07-18 12:20:33 -07:00
Junio C Hamano d349e188ab Merge branch 'pw/rebase-i-keep-reword-after-conflict'
Bugfix for "rebase -i" corner case regression.

* pw/rebase-i-keep-reword-after-conflict:
  sequencer: do not squash 'reword' commits when we hit conflicts
2018-07-18 12:20:29 -07:00
Junio C Hamano 00624d608c Merge branch 'sb/object-store-grafts'
The conversion to pass "the_repository" and then "a_repository"
throughout the object access API continues.

* sb/object-store-grafts:
  commit: allow lookup_commit_graft to handle arbitrary repositories
  commit: allow prepare_commit_graft to handle arbitrary repositories
  shallow: migrate shallow information into the object parser
  path.c: migrate global git_path_* to take a repository argument
  cache: convert get_graft_file to handle arbitrary repositories
  commit: convert read_graft_file to handle arbitrary repositories
  commit: convert register_commit_graft to handle arbitrary repositories
  commit: convert commit_graft_pos() to handle arbitrary repositories
  shallow: add repository argument to is_repository_shallow
  shallow: add repository argument to check_shallow_file_for_update
  shallow: add repository argument to register_shallow
  shallow: add repository argument to set_alternate_shallow_file
  commit: add repository argument to lookup_commit_graft
  commit: add repository argument to prepare_commit_graft
  commit: add repository argument to read_graft_file
  commit: add repository argument to register_commit_graft
  commit: add repository argument to commit_graft_pos
  object: move grafts to object parser
  object-store: move object access functions to object-store.h
2018-07-18 12:20:28 -07:00
brian m. carlson ab5e67d751 sequencer: pass absolute GIT_WORK_TREE to exec commands
The sequencer currently passes GIT_DIR, but not GIT_WORK_TREE, to exec
commands.  In that configuration, we assume that whatever directory
we're in is the top level of the work tree, and git rev-parse
--show-toplevel responds accordingly.  However, when we're in a
subdirectory, that isn't correct: we respond with the subdirectory as
the top level, resulting in unexpected behavior.

Ensure that we pass GIT_WORK_TREE as well as GIT_DIR so that git
operations within subdirectories work correctly.

Note that we are guaranteed to have a work tree in this case: the
relevant sequencer functions are called only from revert, cherry-pick,
and rebase--helper; all of these commands require a working tree.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 11:16:45 -07:00
Aaron Schrab 02cfd14920 sequencer: use configured comment character
Use the configured comment character when generating comments about
branches in a todo list.  Failure to honor this configuration causes a
failure to parse the resulting todo list.

Setting core.commentChar to "auto" will not be honored here, and the
previously configured or default value will be used instead. But, since
the todo list will consist of only generated content, there should not
be any non-comment lines beginning with that character.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 11:04:56 -07:00
Johannes Schindelin 2b6ad0f4bc rebase --rebase-merges: add support for octopus merges
Previously, we introduced the `merge` command for use in todo lists,
to allow to recreate and modify branch topology.

For ease of implementation, and to make review easier, the initial
implementation only supported merge commits with exactly two parents.

This patch adds support for octopus merges, making use of the
just-introduced `-F <file>` option for the `git merge` command: to keep
things simple, we spawn a new Git command instead of trying to call a
library function, also opening an easier door to enhance `rebase
--rebase-merges` to optionally use a merge strategy different from
`recursive` for regular merges: this feature would use the same code
path as octopus merges and simply spawn a `git merge`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 14:52:30 -07:00
Jeff King c5e358d073 sequencer: don't say BUG on bogus input
When cherry-picking a single commit, we go through a special
code path that avoids creating a sequencer todo list at all.
This path expects our revision parsing to turn up exactly
one commit, and dies with a BUG if it doesn't.

But it's actually quite easy to fool. For example:

  $ git cherry-pick --author=no.such.person HEAD
  error: BUG: expected exactly one commit from walk
  fatal: cherry-pick failed

This isn't a bug; it's just bogus input.

The condition to trigger this message actually has two
parts:

  1. We saw no commits. That's the case in the example
     above. Let's drop the "BUG" here to make it clear that
     the input is the problem. And let's also use the phrase
     "empty commit set passed", which matches what we say
     when we do a real revision walk and it turns up empty.

  2. We saw more than one commit. That one _should_ be
     impossible to trigger, since we fed at most one tip and
     provided the no_walk option (and we'll have already
     expanded options like "--branches" that can turn into
     multiple tips). If this ever triggers, it's an
     indication that the conditional added by 7acaaac275
     (revert: allow single-pick in the middle of cherry-pick
     sequence, 2011-12-10) needs to more carefully define
     the single-pick case.

     So this can remain a bug, but we'll upgrade it to use
     the BUG() macro, which would make it easier to detect
     and analyze if it does trigger.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 08:37:59 -07:00
Jeff King 8530c73915 sequencer: handle empty-set cases consistently
If the user gives us a set that prepare_revision_walk()
takes to be empty, like:

  git cherry-pick base..base

then we report an error. It's nonsense, and there's nothing
to pick.

But if they use revision options that later cull the list,
like:

  git cherry-pick --author=nobody base~2..base

then we quietly create an empty todo list and return
success.

Arguably either behavior is acceptable, but we should
definitely be consistent about it. Reporting an error
seems to match the original intent, which dates all the way
back to 7e2bfd3f99 (revert: allow cherry-picking more than
one commit, 2010-06-02). That in turn was trying to match
the single-commit case that existed before then (and which
continues to issue an error).

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 08:37:47 -07:00
Beat Bolli 9ad36356dd sequencer.c: avoid empty statements at top level
The macro GIT_PATH_FUNC expands to a function definition that ends with
a closing brace. Remove two extra semicolons.

While at it, fix the example in path.h.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:37:03 -07:00
Stefan Beller c1f5eb4962 commit: add repository argument to lookup_commit
Add a repository argument to allow callers of lookup_commit to be more
specific about which repository to handle. This is a small mechanical
change; it doesn't change the implementation to handle repositories
other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:39 -07:00
Stefan Beller 2122f6754c commit: add repository argument to lookup_commit_reference
Add a repository argument to allow callers of lookup_commit_reference
to be more specific about which repository to handle. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:39 -07:00
Stefan Beller 21e1ee8f4f commit: add repository argument to lookup_commit_reference_gently
Add a repository argument to allow callers of
lookup_commit_reference_gently to be more specific about which
repository to handle. This is a small mechanical change; it doesn't
change the implementation to handle repositories other than
the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:39 -07:00
Stefan Beller f86bcc7b2c tree: add repository argument to lookup_tree
Add a repository argument to allow the callers of lookup_tree
to be more specific about which repository to act on. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:38 -07:00
Junio C Hamano b16b60f71b Merge branch 'sb/object-store-grafts' into sb/object-store-lookup
* sb/object-store-grafts:
  commit: allow lookup_commit_graft to handle arbitrary repositories
  commit: allow prepare_commit_graft to handle arbitrary repositories
  shallow: migrate shallow information into the object parser
  path.c: migrate global git_path_* to take a repository argument
  cache: convert get_graft_file to handle arbitrary repositories
  commit: convert read_graft_file to handle arbitrary repositories
  commit: convert register_commit_graft to handle arbitrary repositories
  commit: convert commit_graft_pos() to handle arbitrary repositories
  shallow: add repository argument to is_repository_shallow
  shallow: add repository argument to check_shallow_file_for_update
  shallow: add repository argument to register_shallow
  shallow: add repository argument to set_alternate_shallow_file
  commit: add repository argument to lookup_commit_graft
  commit: add repository argument to prepare_commit_graft
  commit: add repository argument to read_graft_file
  commit: add repository argument to register_commit_graft
  commit: add repository argument to commit_graft_pos
  object: move grafts to object parser
  object-store: move object access functions to object-store.h
2018-06-29 10:43:28 -07:00
Elijah Newren 0060041df1 Fix use of strategy options with interactive rebases
git-rebase.sh wrote strategy options to .git/rebase/merge/strategy_opts
in the following format:
  '--ours'  '--renormalize'
Note the double spaces.

git-rebase--interactive uses sequencer.c to parse that file, and
sequencer.c used split_cmdline() to get the individual strategy options.
After splitting, sequencer.c prefixed each "option" with a double dash,
so, concatenating all its options would result in:
  -- --ours -- --renormalize

So, when it ended up calling try_merge_strategy(), that in turn would run
  git merge-$strategy -- --ours -- --renormalize $merge_base -- $head $remote

instead of the expected/desired
  git merge-$strategy --ours --renormalize $merge_base -- $head $remote

Remove the extra spaces so that when it goes through split_cmdline() we end
up with the desired command line.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-27 12:25:12 -07:00
Junio C Hamano 02f27d0dd0 Merge branch 'sb/plug-misc-leaks'
Misc leak plugging.

* sb/plug-misc-leaks:
  sequencer.c: plug mem leak in git_sequencer_config
  sequencer.c: plug leaks in do_pick_commit
  submodule--helper: plug mem leak in print_default_remote
  refs/packed-backend.c: close fd of empty file
2018-06-25 13:22:41 -07:00
Junio C Hamano b3b2aaf0fd Merge branch 'nd/commit-util-to-slab'
The in-core "commit" object had an all-purpose "void *util" field,
which was tricky to use especially in library-ish part of the
code.  All of the existing uses of the field has been migrated to a
more dedicated "commit-slab" mechanism and the field is eliminated.

* nd/commit-util-to-slab:
  commit.h: delete 'util' field in struct commit
  merge: use commit-slab in merge remote desc instead of commit->util
  log: use commit-slab in prepare_bases() instead of commit->util
  show-branch: note about its object flags usage
  show-branch: use commit-slab for commit-name instead of commit->util
  name-rev: use commit-slab for rev-name instead of commit->util
  bisect.c: use commit-slab for commit weight instead of commit->util
  revision.c: use commit-slab for show_source
  sequencer.c: use commit-slab to associate todo items to commits
  sequencer.c: use commit-slab to mark seen commits
  shallow.c: use commit-slab for commit depth instead of commit->util
  describe: use commit-slab for commit names instead of commit->util
  blame: use commit-slab for blame suspects instead of commit->util
  commit-slab: support shared commit-slab
  commit-slab.h: code split
2018-06-25 13:22:35 -07:00
Stefan Beller f40f3c16cd sequencer.c: plug mem leak in git_sequencer_config
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-25 13:10:09 -07:00
Phillip Wood a9279c6785 sequencer: do not squash 'reword' commits when we hit conflicts
Ever since commit 18633e1a22 ("rebase -i: use the rebase--helper builtin",
2017-02-09), when a commit marked as 'reword' in an interactive rebase
has conflicts and fails to apply, when the rebase is resumed that commit
will be squashed into its parent with its commit message taken.

The issue can be understood better by looking at commit 56dc3ab04b
("sequencer (rebase -i): implement the 'edit' command", 2017-01-02), which
introduced error_with_patch() for the edit command.  For the edit command,
it needs to stop the rebase whether or not the patch applies cleanly.  If
the patch does apply cleanly, then when it resumes it knows it needs to
amend all changes into the previous commit.  If it does not apply cleanly,
then the changes should not be amended.  Thus, it passes !res (success of
applying the 'edit' commit) to error_with_patch() for the to_amend flag.

The problematic line of code actually came from commit 04efc8b57c
("sequencer (rebase -i): implement the 'reword' command", 2017-01-02).
Note that to get to this point in the code:
  * !!res (i.e. patch application failed)
  * item->command < TODO_SQUASH
  * item->command != TODO_EDIT
  * !is_fixup(item->command) [i.e. not squash or fixup]
So that means this can only be a failed patch application that is either a
pick, revert, or reword.  We only need to amend HEAD when rewording the
root commit or a commit that has been fast-forwarded, for any of the other
cases we want a new commit, so we should not set the to_amend flag.

Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Original-patch-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-19 10:26:41 -07:00
Junio C Hamano f300f5681e Merge branch 'js/rebase-i-root-fix'
A regression to "rebase -i --root" introduced during this cycle has
been fixed.

* js/rebase-i-root-fix:
  rebase --root: fix amending root commit messages
  rebase --root: demonstrate a bug while amending root commit messages
2018-06-18 11:23:22 -07:00
Johannes Schindelin 76fda6ebbc rebase --root: fix amending root commit messages
The code path that triggered that "BUG" really does not want to run
without an explicit commit message. In the case where we want to amend a
commit message, we have an *implicit* commit message, though: the one of
the commit to amend. Therefore, this code path should not even be
entered.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-18 09:36:58 -07:00
Stefan Beller 19517fb964 sequencer.c: plug leaks in do_pick_commit
Going to leave, we additionally free the author and commit message
and make sure to call update_abort_safety_file().

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-04 11:36:35 +09:00
Junio C Hamano 95dd4b2b14 Merge branch 'js/rebase-recreate-merge'
Hotfixes.

* js/rebase-recreate-merge:
  sequencer: ensure labels that are object IDs are rewritten
  git-rebase--interactive: fix copy-paste mistake
2018-06-01 15:06:40 +09:00
Junio C Hamano 2289880f78 Merge branch 'nd/command-list'
The list of commands with their various attributes were spread
across a few places in the build procedure, but it now is getting a
bit more consolidated to allow more automation.

* nd/command-list:
  completion: allow to customize the completable command list
  completion: add and use --list-cmds=alias
  completion: add and use --list-cmds=nohelpers
  Move declaration for alias.c to alias.h
  completion: reduce completable command list
  completion: let git provide the completable command list
  command-list.txt: documentation and guide line
  help: use command-list.txt for the source of guides
  help: add "-a --verbose" to list all commands with synopsis
  git: support --list-cmds=list-<category>
  completion: implement and use --list-cmds=main,others
  git --list-cmds: collect command list in a string_list
  git.c: convert --list-* to --list-cmds=*
  Remove common-cmds.h
  help: use command-list.h for common command list
  generate-cmds.sh: export all commands to command-list.h
  generate-cmds.sh: factor out synopsis extract code
2018-06-01 15:06:37 +09:00