Commit Graph

579 Commits

Author SHA1 Message Date
Junio C Hamano
6511cb33c9 Merge branch 'dd/sequencer-utf8'
Handling of commit objects that use non UTF-8 encoding during
"rebase -i" has been improved.

* dd/sequencer-utf8:
  sequencer: reencode commit message for am/rebase --show-current-patch
  sequencer: reencode old merge-commit message
  sequencer: reencode squashing commit's message
  sequencer: reencode revert/cherry-pick's todo list
  sequencer: reencode to utf-8 before arrange rebase's todo list
  t3900: demonstrate git-rebase problem with multi encoding
  configure.ac: define ICONV_OMITS_BOM if necessary
  t0028: eliminate non-standard usage of printf
2019-12-01 09:04:36 -08:00
Junio C Hamano
d3096d2ba6 Merge branch 'en/doc-typofix'
Docfix.

* en/doc-typofix:
  Fix spelling errors in no-longer-updated-from-upstream modules
  multimail: fix a few simple spelling errors
  sha1dc: fix trivial comment spelling error
  Fix spelling errors in test commands
  Fix spelling errors in messages shown to users
  Fix spelling errors in names of tests
  Fix spelling errors in comments of testcases
  Fix spelling errors in code comments
  Fix spelling errors in documentation outside of Documentation/
  Documentation: fix a bunch of typos, both old and new
2019-12-01 09:04:35 -08:00
Doan Tran Cong Danh
52f52e5ae4 sequencer: reencode commit message for am/rebase --show-current-patch
The message file will be used as commit message for the
git-{am,rebase} --continue.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 18:03:35 +09:00
Doan Tran Cong Danh
5772b0c745 sequencer: reencode old merge-commit message
During rebasing, old merge's message (encoded in old encoding)
will be used as message for new merge commit (created by rebase).

In case of the value of i18n.commitencoding has been changed after the
old merge time. We will receive an unusable message for this new merge.

Correct it.

This change also notice a breakage with git-rebase label system.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 18:03:35 +09:00
Doan Tran Cong Danh
b375744274 sequencer: reencode squashing commit's message
On fixup/squash-ing rebase, git will create new commit in
i18n.commitencoding, reencode the commit message to that said encode.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 09:43:48 +09:00
Doan Tran Cong Danh
019a9d8362 sequencer: reencode revert/cherry-pick's todo list
Keep revert/cherry-pick's todo list in line with rebase todo list.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 09:43:48 +09:00
Doan Tran Cong Danh
0798d16fe3 sequencer: reencode to utf-8 before arrange rebase's todo list
On musl libc, ISO-2022-JP encoder is too eager to switch back to
1 byte encoding, musl's iconv always switch back after every combining
character. Comparing glibc and musl's output for this command
$ sed q t/t3900/ISO-2022-JP.txt| iconv -f ISO-2022-JP -t utf-8 |
	iconv -f utf-8 -t ISO-2022-JP | xxd

glibc:
00000000: 1b24 4224 4f24 6c24 5224 5b24 551b 2842  .$B$O$l$R$[$U.(B
00000010: 0a                                       .

musl:
00000000: 1b24 4224 4f1b 2842 1b24 4224 6c1b 2842  .$B$O.(B.$B$l.(B
00000010: 1b24 4224 521b 2842 1b24 4224 5b1b 2842  .$B$R.(B.$B$[.(B
00000020: 1b24 4224 551b 2842 0a                   .$B$U.(B.

Although musl iconv's output isn't optimal, it's still correct.

From commit 7d509878b8, ("pretty.c: format string with truncate respects
logOutputEncoding", 2014-05-21), we're encoding the message to utf-8
first, then format it and convert the message to the actual output
encoding on git commit --squash.

Thus, t3900::test_commit_autosquash_flags is failing on musl libc.

Reencode to utf-8 before arranging rebase's todo list.

By doing this, we also remove a breakage noticed by a test added in the
previous commit.

Signed-off-by: Doan Tran Cong Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-11 09:43:48 +09:00
Junio C Hamano
5c8c0a0d78 Merge branch 'pw/post-commit-from-sequencer'
"rebase -i" ceased to run post-commit hook by mistake in an earlier
update, which has been corrected.

* pw/post-commit-from-sequencer:
  sequencer: run post-commit hook
  move run_commit_hook() to libgit and use it there
  sequencer.h fix placement of #endif
  t3404: remove uneeded calls to set_fake_editor
  t3404: set $EDITOR in subshell
  t3404: remove unnecessary subshell
2019-11-10 18:02:12 +09:00
Elijah Newren
15beaaa3d1 Fix spelling errors in code comments
Reported-by: Jens Schleusener <Jens.Schleusener@fossies.org>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-10 16:00:54 +09:00
Phillip Wood
4627bc777e sequencer: run post-commit hook
Prior to commit 356ee4659b ("sequencer: try to commit without forking
'git commit'", 2017-11-24) the sequencer would always run the
post-commit hook after each pick or revert as it forked `git commit` to
create the commit. The conversion to committing without forking `git
commit` omitted to call the post-commit hook after creating the commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-16 10:30:51 +09:00
Phillip Wood
49697cb721 move run_commit_hook() to libgit and use it there
This function was declared in commit.h but was implemented in
builtin/commit.c so was not part of libgit. Move it to libgit so we can
use it in the sequencer. This simplifies the implementation of
run_prepare_commit_msg_hook() and will be used in the next commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-16 10:30:51 +09:00
Junio C Hamano
5efabc7ed9 Merge branch 'ew/hashmap'
Code clean-up of the hashmap API, both users and implementation.

* ew/hashmap:
  hashmap_entry: remove first member requirement from docs
  hashmap: remove type arg from hashmap_{get,put,remove}_entry
  OFFSETOF_VAR macro to simplify hashmap iterators
  hashmap: introduce hashmap_free_entries
  hashmap: hashmap_{put,remove} return hashmap_entry *
  hashmap: use *_entry APIs for iteration
  hashmap_cmp_fn takes hashmap_entry params
  hashmap_get{,_from_hash} return "struct hashmap_entry *"
  hashmap: use *_entry APIs to wrap container_of
  hashmap_get_next returns "struct hashmap_entry *"
  introduce container_of macro
  hashmap_put takes "struct hashmap_entry *"
  hashmap_remove takes "const struct hashmap_entry *"
  hashmap_get takes "const struct hashmap_entry *"
  hashmap_add takes "struct hashmap_entry *"
  hashmap_get_next takes "const struct hashmap_entry *"
  hashmap_entry_init takes "struct hashmap_entry *"
  packfile: use hashmap_entry in delta_base_cache_entry
  coccicheck: detect hashmap_entry.hash assignment
  diff: use hashmap_entry_init on moved_entry.ent
2019-10-15 13:48:02 +09:00
Junio C Hamano
280bd44551 Merge branch 'en/merge-recursive-cleanup'
The merge-recursive machiery is one of the most complex parts of
the system that accumulated cruft over time.  This large series
cleans up the implementation quite a bit.

* en/merge-recursive-cleanup: (26 commits)
  merge-recursive: fix the fix to the diff3 common ancestor label
  merge-recursive: fix the diff3 common ancestor label for virtual commits
  merge-recursive: alphabetize include list
  merge-recursive: add sanity checks for relevant merge_options
  merge-recursive: rename MERGE_RECURSIVE_* to MERGE_VARIANT_*
  merge-recursive: split internal fields into a separate struct
  merge-recursive: avoid losing output and leaking memory holding that output
  merge-recursive: comment and reorder the merge_options fields
  merge-recursive: consolidate unnecessary fields in merge_options
  merge-recursive: move some definitions around to clean up the header
  merge-recursive: rename merge_options argument to opt in header
  merge-recursive: rename 'mrtree' to 'result_tree', for clarity
  merge-recursive: use common name for ancestors/common/base_list
  merge-recursive: fix some overly long lines
  cache-tree: share code between functions writing an index as a tree
  merge-recursive: don't force external callers to do our logging
  merge-recursive: remove useless parameter in merge_trees()
  merge-recursive: exit early if index != head
  Ensure index matches head before invoking merge machinery, round N
  merge-recursive: remove another implicit dependency on the_repository
  ...
2019-10-15 13:47:59 +09:00
Junio C Hamano
4608a029b4 Merge branch 'pw/rebase-i-show-HEAD-to-reword'
"git rebase -i" showed a wrong HEAD while "reword" open the editor.

* pw/rebase-i-show-HEAD-to-reword:
  sequencer: simplify root commit creation
  rebase -i: check for updated todo after squash and reword
  rebase -i: always update HEAD before rewording
2019-10-11 14:24:47 +09:00
Junio C Hamano
676278f8ea Merge branch 'bc/object-id-part17'
Preparation for SHA-256 upgrade continues.

* bc/object-id-part17: (26 commits)
  midx: switch to using the_hash_algo
  builtin/show-index: replace sha1_to_hex
  rerere: replace sha1_to_hex
  builtin/receive-pack: replace sha1_to_hex
  builtin/index-pack: replace sha1_to_hex
  packfile: replace sha1_to_hex
  wt-status: convert struct wt_status to object_id
  cache: remove null_sha1
  builtin/worktree: switch null_sha1 to null_oid
  builtin/repack: write object IDs of the proper length
  pack-write: use hash_to_hex when writing checksums
  sequencer: convert to use the_hash_algo
  bisect: switch to using the_hash_algo
  sha1-lookup: switch hard-coded constants to the_hash_algo
  config: use the_hash_algo in abbrev comparison
  combine-diff: replace GIT_SHA1_HEXSZ with the_hash_algo
  bundle: switch to use the_hash_algo
  connected: switch GIT_SHA1_HEXSZ to the_hash_algo
  show-index: switch hard-coded constants to the_hash_algo
  blame: remove needless comparison with GIT_SHA1_HEXSZ
  ...
2019-10-11 14:24:46 +09:00
Eric Wong
c8e424c9c9 hashmap: introduce hashmap_free_entries
`hashmap_free_entries' behaves like `container_of' and passes
the offset of the hashmap_entry struct to the internal
`hashmap_free_' function, allowing the function to free any
struct pointer regardless of where the hashmap_entry field
is located.

`hashmap_free' no longer takes any arguments aside from
the hashmap itself.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:11 +09:00
Eric Wong
939af16eac hashmap_cmp_fn takes hashmap_entry params
Another step in eliminating the requirement of hashmap_entry
being the first member of a struct.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:11 +09:00
Eric Wong
f23a465132 hashmap_get{,_from_hash} return "struct hashmap_entry *"
Update callers to use hashmap_get_entry, hashmap_get_entry_from_hash
or container_of as appropriate.

This is another step towards eliminating the requirement of
hashmap_entry being the first field in a struct.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:11 +09:00
Eric Wong
26b455f21e hashmap_put takes "struct hashmap_entry *"
This is less error-prone than "void *" as the compiler now
detects invalid types being passed.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:10 +09:00
Eric Wong
b94e5c1df6 hashmap_add takes "struct hashmap_entry *"
This is less error-prone than "void *" as the compiler now
detects invalid types being passed.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:10 +09:00
Eric Wong
d22245a2e3 hashmap_entry_init takes "struct hashmap_entry *"
C compilers do type checking to make life easier for us.  So
rely on that and update all hashmap_entry_init callers to take
"struct hashmap_entry *" to avoid future bugs while improving
safety and readability.

Signed-off-by: Eric Wong <e@80x24.org>
Reviewed-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07 10:20:09 +09:00
Junio C Hamano
917a319ea5 Merge branch 'js/rebase-r-strategy'
"git rebase --rebase-merges" learned to drive different merge
strategies and pass strategy specific options to them.

* js/rebase-r-strategy:
  t3427: accelerate this test by using fast-export and fast-import
  rebase -r: do not (re-)generate root commits with `--root` *and* `--onto`
  t3418: test `rebase -r` with merge strategies
  t/lib-rebase: prepare for testing `git rebase --rebase-merges`
  rebase -r: support merge strategies other than `recursive`
  t3427: fix another incorrect assumption
  t3427: accommodate for the `rebase --merge` backend having been replaced
  t3427: fix erroneous assumption
  t3427: condense the unnecessarily repetitive test cases into three
  t3427: move the `filter-branch` invocation into the `setup` case
  t3427: simplify the `setup` test case significantly
  t3427: add a clarifying comment
  rebase: fold git-rebase--common into the -p backend
  sequencer: the `am` and `rebase--interactive` scripts are gone
  .gitignore: there is no longer a built-in `git-rebase--interactive`
  t3400: stop referring to the scripted rebase
  Drop unused git-rebase--am.sh
2019-09-18 11:50:07 -07:00
Phillip Wood
b0a3186140 sequencer: simplify root commit creation
Adapt try_to_commit() to create a new root commit rather than special
casing this in run_git_commit(). This significantly reduces the amount of
special case code for creating the root commit and reduces the number of
commit code paths we have to worry about.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:27:19 -07:00
Phillip Wood
a47ba3c777 rebase -i: check for updated todo after squash and reword
While a rebase is stopped for the user to edit a commit message it can
be convenient for them to also edit the todo list. The scripted version
of rebase supported this but the C version does not. We already check to
see if the todo list has been updated by an exec command so extend this
to rewords and squashes. It only costs a single stat call to do this so
it should not affect the speed of the rebase (especially as it has just
stopped for the user to edit a message)

Note that for squashes the editor may be opened on a different pick to
the squash itself as we edit the message at the end of a chain fixups
and squashes.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:27:13 -07:00
Phillip Wood
450efe2d53 rebase -i: always update HEAD before rewording
If the user runs git log while rewording a commit it is confusing if
sometimes we're amending the commit that's being reworded and at other
times we're creating a new commit depending on whether we could
fast-forward or not[1]. Fix this inconsistency by always committing the
picked commit and then running 'git commit --amend' to do the reword.

The first commit is performed by the sequencer without forking git
commit and does not impact on the speed of rebase. In a test rewording
100 commits with

    GIT_EDITOR=true GIT_SEQUENCE_EDITOR='sed -i s/pick/reword/' \
	../bin-wrappers/git rebase -i --root

and taking the best of three runs the current master took
957ms and with this patch it took 961ms.

This change fixes rewording the new root commit when rearranging commits
with --root.

Note that the new code no longer updates CHERRY_PICK_HEAD after creating
a root commit - I'm not sure why the old code was that creating that ref
after a successful commit, everywhere else it is removed after a
successful commit.

[1] https://public-inbox.org/git/xmqqlfvu4be3.fsf@gitster-ct.c.googlers.com/T/#m133009cb91cf0917bcf667300f061178be56680a

Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:27:09 -07:00
brian m. carlson
4439c7a360 sequencer: convert to use the_hash_algo
Convert several uses of GIT_SHA1_HEXSZ constants to be references to
the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:04:58 -07:00
Elijah Newren
345480d1ed merge-recursive: don't force external callers to do our logging
Alternatively, you can view this as "make the merge functions behave
more similarly."  merge-recursive has three different entry points:
merge_trees(), merge_recursive(), and merge_recursive_generic().  Two of
these would call diff_warn_rename_limit(), but merge_trees() didn't.
This lead to callers of merge_trees() needing to manually call
diff_warn_rename_limit() themselves.  Move this to the new
merge_finalize() function to make sure that all three entry points run
this function.

Note that there are two external callers of merge_trees(), one in
sequencer.c and one in builtin/checkout.c.  The one in sequencer.c is
cleaned up by this patch and just transfers where the call to
diff_warn_rename_limit() is made; the one in builtin/checkout.c is for
switching to a different commit and in the very rare case where the
warning might be triggered, it would probably be helpful to include
(e.g. if someone is modifying a file that has been renamed in moving to
the other commit, but there are so many renames between the commits that
the limit kicks in and none are detected, it may help to have an
explanation about why they got a delete/modify conflict instead of a
proper content merge in a renamed file).

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 10:08:03 -07:00
Elijah Newren
b4db8a2b76 merge-recursive: remove useless parameter in merge_trees()
merge_trees() took a results parameter that would only be written when
opt->call_depth was positive, which is never the case now that
merge_trees_internal() has been split from merge_trees().  Remove the
misleading and unused parameter from merge_trees().

While at it, add some comments explaining how the output of
merge_trees() and merge_recursive() differ.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 10:08:03 -07:00
Johannes Schindelin
e1fac531ea rebase -r: do not (re-)generate root commits with --root *and* --onto
When rebasing a complete commit history onto a given commit, it is
pretty obvious that the root commits should be rebased on top of said
given commit.

To test this, let's kill two birds with one stone and add a test case to
t3427-rebase-subtree.sh that not only demonstrates that this works, but
also that `git rebase -r` works with merge strategies now.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-31 12:24:07 -07:00
Johannes Schindelin
e145d99347 rebase -r: support merge strategies other than recursive
We already support merge strategies in the sequencer, but only for
`pick` commands.

With this commit, we now also support them in `merge` commands. The
approach is simple: if any merge strategy option is specified, or if any
merge strategy other than `recursive` is specified, we simply spawn the
`git merge` command. Otherwise, we handle the merge in-process just as
before.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-31 12:24:07 -07:00
Johannes Schindelin
68b54f669d sequencer: the am and rebase--interactive scripts are gone
Update a code comment that referred to those files as if they were still
there.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-31 12:24:06 -07:00
Junio C Hamano
649cae69bc Merge branch 'pw/rebase-abort-clean-rewritten' into maint
"git rebase --abort" used to leave refs/rewritten/ when concluding
"git rebase -r", which has been corrected.

* pw/rebase-abort-clean-rewritten:
  rebase --abort/--quit: cleanup refs/rewritten
  sequencer: return errors from sequencer_remove_state()
  rebase: warn if state directory cannot be removed
  rebase: fix a memory leak
2019-07-29 12:38:20 -07:00
Junio C Hamano
1eb0a12ec3 Merge branch 'nd/tree-walk-with-repo'
The tree-walk API learned to pass an in-core repository
instance throughout more codepaths.

* nd/tree-walk-with-repo:
  t7814: do not generate same commits in different repos
  Use the right 'struct repository' instead of the_repository
  match-trees.c: remove the_repo from shift_tree*()
  tree-walk.c: remove the_repo from get_tree_entry_follow_symlinks()
  tree-walk.c: remove the_repo from get_tree_entry()
  tree-walk.c: remove the_repo from fill_tree_descriptor()
  sha1-file.c: remove the_repo from read_object_with_reference()
2019-07-19 11:30:21 -07:00
Junio C Hamano
d97c62c828 Merge branch 'ra/cherry-pick-revert-skip'
"git cherry-pick/revert" learned a new "--skip" action.

* ra/cherry-pick-revert-skip:
  cherry-pick/revert: advise using --skip
  cherry-pick/revert: add --skip option
  sequencer: use argv_array in reset_merge
  sequencer: rename reset_for_rollback to reset_merge
  sequencer: add advice for revert
2019-07-19 11:30:21 -07:00
Junio C Hamano
bd48ccf4a4 Merge branch 'pw/status-with-corrupt-sequencer-state'
The code to read state files used by the sequencer machinery for
"git status" has been made more robust against a corrupt or stale
state files.

* pw/status-with-corrupt-sequencer-state:
  status: do not report errors in sequencer/todo
  sequencer: factor out todo command name parsing
  sequencer: always allow tab after command name
2019-07-19 11:30:20 -07:00
Junio C Hamano
6624e07b36 Merge branch 'sg/rebase-progress'
Use "Erase in Line" CSI sequence that is already used in the editor
support to clear cruft in the progress output.

* sg/rebase-progress:
  progress: use term_clear_line()
  rebase: fix garbled progress display with '-x'
  pager: add a helper function to clear the last line in the terminal
  t3404: make the 'rebase.missingCommitsCheck=ignore' test more focused
  t3404: modernize here doc style
2019-07-09 15:25:45 -07:00
Junio C Hamano
f496b064fc Merge branch 'nd/switch-and-restore'
Two new commands "git switch" and "git restore" are introduced to
split "checking out a branch to work on advancing its history" and
"checking out paths out of the index and/or a tree-ish to work on
advancing the current history" out of the single "git checkout"
command.

* nd/switch-and-restore: (46 commits)
  completion: disable dwim on "git switch -d"
  switch: allow to switch in the middle of bisect
  t2027: use test_must_be_empty
  Declare both git-switch and git-restore experimental
  help: move git-diff and git-reset to different groups
  doc: promote "git restore"
  user-manual.txt: prefer 'merge --abort' over 'reset --hard'
  completion: support restore
  t: add tests for restore
  restore: support --patch
  restore: replace --force with --ignore-unmerged
  restore: default to --source=HEAD when only --staged is specified
  restore: reject invalid combinations with --staged
  restore: add --worktree and --staged
  checkout: factor out worktree checkout code
  restore: disable overlay mode by default
  restore: make pathspec mandatory
  restore: take tree-ish from --source option instead
  checkout: split part of it to new command 'restore'
  doc: promote "git switch"
  ...
2019-07-09 15:25:44 -07:00
Junio C Hamano
88f95e49af Merge branch 'pw/rebase-abort-clean-rewritten'
"git rebase --abort" used to leave refs/rewritten/ when concluding
"git rebase -r", which has been corrected.

* pw/rebase-abort-clean-rewritten:
  rebase --abort/--quit: cleanup refs/rewritten
  sequencer: return errors from sequencer_remove_state()
  rebase: warn if state directory cannot be removed
  rebase: fix a memory leak
2019-07-09 15:25:41 -07:00
Rohit Ashiwal
dcb500dc16 cherry-pick/revert: advise using --skip
The previous commit introduced a --skip flag for cherry-pick and
revert. Update the advice messages, to tell users about this less
cumbersome way of skipping commits. Also add tests to ensure
everything is working fine.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-02 12:08:08 -07:00
Rohit Ashiwal
de81ca3f36 cherry-pick/revert: add --skip option
git am or rebase have a --skip flag to skip the current commit if the
user wishes to do so. During a cherry-pick or revert a user could
likewise skip a commit, but needs to use 'git reset' (or in the case
of conflicts 'git reset --merge'), followed by 'git (cherry-pick |
revert) --continue' to skip the commit. This is more annoying and
sometimes confusing on the users' part. Add a `--skip` option to make
skipping commits easier for the user and to make the commands more
consistent.

In the next commit, we will change the advice messages hence finishing
the process of teaching revert and cherry-pick "how to skip commits".

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-02 12:08:08 -07:00
Rohit Ashiwal
265ab48f26 sequencer: use argv_array in reset_merge
Avoid using magic numbers for array size and index under `reset_merge`
function. Use `argv_array` instead. This will make code shorter and
easier to extend.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-02 12:08:08 -07:00
Rohit Ashiwal
918d1e6ed8 sequencer: rename reset_for_rollback to reset_merge
We are on a path to teach cherry-pick/revert how to skip commits. To
achieve this, we could really make use of existing functions.
reset_for_rollback is one such function, but the name does not
intuitively suggest to use it to reset a merge, which it was born to
perform, see 539047c ("revert: introduce --abort to cancel a failed
cherry-pick", 2011-11-23). Change the name to reset_merge to make
it more intuitive.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-02 12:08:07 -07:00
Rohit Ashiwal
6a1f9046a4 sequencer: add advice for revert
In the case of merge conflicts, while performing a revert, we are
currently advised to use `git cherry-pick --<sequencer-options>`.
Introduce a separate advice message for `git revert`. Also change
the signature of `create_seq_dir` to handle which advice to display
selectively.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-02 12:08:07 -07:00
SZEDER Gábor
d7d90885e0 rebase: fix garbled progress display with '-x'
When running a command with the 'exec' instruction during an
interactive rebase session, or for a range of commits using 'git
rebase -x', the output can be a bit garbled when the name of the
command is short enough:

  $ git rebase -x true HEAD~5
  Executing: true
  Executing: true
  Executing: true
  Executing: true
  Executing: true)
  Successfully rebased and updated refs/heads/master.

Note the ')' at the end of the last line.  It gets more garbled as the
range of commits increases:

  $ git rebase -x true HEAD~50
  Executing: true)
  [ repeated 3 more times ]
  Executing: true0)
  [ repeated 44 more times ]
  Executing: true00)
  Successfully rebased and updated refs/heads/master.

Those extra numbers and ')' are remnants of the previously displayed
"Rebasing (N/M)" progress lines that are usually completely
overwritten by the "Executing: <cmd>" lines, unless 'cmd' is short and
the "N/M" part is long.

Make sure that the previously displayed "Rebasing (N/M)" line is
cleared by using the term_clear_line() helper function added in the
previous patch.  Do so only when not being '--verbose', because in
that case these "Rebasing (N/M)" lines are not printed as progress
(i.e. as lines with '\r' at the end), but as "regular" output (with
'\n' at the end).

A couple of other rebase commands print similar messages, e.g.
"Stopped at <abbrev-oid>... <subject>" for the 'edit' or 'break'
commands, or the "Successfully rebased and updated <full-ref>." at the
very end.  These are so long that they practically always overwrite
that "Rebasing (N/M)" progress line, but let's be prudent, and clear
the last line before printing these, too.

In 't3420-rebase-autostash.sh' two helper functions prepare the
expected output of four tests that check the full output of 'git
rebase' and thus are affected by this change, so adjust their
expectations to account for the new line clearing.

Note that this patch doesn't completely eliminate the possibility of
similar garbled outputs, e.g. some error messages from rebase or the
"Auto-merging <file>" message from within the depths of the merge
machinery might not be long enough to completely cover the last
"Rebasing (N/M)" line.  This patch doesn't do anything about them,
because dealing with them individually would result in way too much
churn, while having a catch-all term_clear_line() call in the common
code path of pick_commits() would hide the "Rebasing (N/M)" line way
too soon, and it would either flicker or be invisible.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 12:58:20 -07:00
Nguyễn Thái Ngọc Duy
34e7771bc6 Use the right 'struct repository' instead of the_repository
There are a couple of places where 'struct repository' is already passed
around, but the_repository is still used. Use the right repo.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 12:45:17 -07:00
Nguyễn Thái Ngọc Duy
5e57580733 tree-walk.c: remove the_repo from fill_tree_descriptor()
While at there, clean up the_repo usage in builtin/merge-tree.c a tiny
bit.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 12:45:17 -07:00
Phillip Wood
ed5b1ca10b status: do not report errors in sequencer/todo
commit 4a72486de9 ("fix cherry-pick/revert status after commit",
2019-04-16) used parse_insn_line() to parse the first line of the todo
list to check if it was a pick or revert. However if the todo list is
left over from an old cherry-pick or revert and references a commit that
no longer exists then parse_insn_line() prints an error message which is
confusing for users [1]. Instead parse just the command name so that the
user is alerted to the presence of stale sequencer state by status
reporting that a cherry-pick or revert is in progress.

Note that we should not be leaving stale sequencer state lying around
(or at least not as often) after commit b07d9bfd17 ("commit/reset: try
to clean up sequencer state", 2019-04-16). However the user may still
have stale state that predates that commit.

Also avoid printing an error message if for some reason the user has a
file called `sequencer` in $GIT_DIR.

[1] https://public-inbox.org/git/3bc58c33-4268-4e7c-bf1a-fe349b3cb037@www.fastmail.com/

Reported-by: Espen Antonsen <espen@inspired.no>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 10:31:02 -07:00
Phillip Wood
3e81bccdf3 sequencer: factor out todo command name parsing
Factor out the code that parses the name of the command at the start of
each line in the todo file into its own function so that it can be used
in the next commit.

As I don't want to burden other callers with having to pass in a pointer
to the end of the line the test for an abbreviated command is
changed. This change should not affect the behavior. Instead of testing
`eol == bol + 1` the new code checks for the end of the line by testing
for '\n', '\r' or '\0' following the abbreviated name. To avoid reading
past the end of an empty string it also checks that there is actually a
single character abbreviation before testing if it matches. This
prevents it from matching '\0' as the abbreviated name and then trying
to read another character.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 10:31:01 -07:00
Phillip Wood
d258dc16c1 sequencer: always allow tab after command name
The code that parses the todo list allows an unabbreviated command name
to be followed by a space or a tab, but if the command name is
abbreviated it only allows a space after it. Fix this inconsistency.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27 10:31:00 -07:00
Junio C Hamano
c510261154 Merge branch 'pw/rebase-edit-message-for-replayed-merge'
A "merge -c" instruction during "git rebase --rebase-merges" should
give the user a chance to edit the log message, even when there is
otherwise no need to create a new merge and replace the existing
one (i.e. fast-forward instead), but did not.  Which has been
corrected.

* pw/rebase-edit-message-for-replayed-merge:
  rebase -r: always reword merge -c
2019-06-13 13:19:43 -07:00