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The code to re-read the edited todo list in "git rebase -i" was
made more robust.
* pw/rebase-reread-todo-after-editing:
rebase: fix todo-list rereading
sequencer.c: factor out a function
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54fd3243da ("rebase -i: reread the todo list if `exec` touched it",
2017-04-26) sought to reread the todo list after running an exec
command only if it had been changed. To accomplish this it checks the
stat data of the todo list after running an exec command to see if it
has changed. Unfortunately there are two problems, firstly the
implementation is buggy we actually reread the list after each exec
which is quadratic in the number of commit lookups and secondly the
design is predicated on using nanosecond time stamps which are not the
default.
The implementation bug stems from the fact that we write a new todo
list to disk before running each command but do not update the stat
data to reflect this[1].
The design problem is that it is possible for the user to edit the
todo list without changing its size or inode which means we have to
rely on the mtime to tell us if it has changed. Unfortunately unless
git is built with USE_NSEC it is possible for the original and edited
list to share the same mtime.
Ideally "git rebase --edit-todo" would set a flag that we would then
check in sequencer.c. Unfortunately this is approach will not work as
there are scripts in the wild that write to the todo list directly
without running "git rebase --edit-todo". Instead of relying on stat
data this patch simply reads the possibly edited todo list and
compares it to the original with memcmp(). This is much faster than
reparsing the todo list each time. This patch reduces the time to run
git rebase -r -xtrue v2.32.0~100 v2.32.0
which runs 419 exec commands by 6.6%. For comparison fixing the
implementation bug in stat based approach reduces the time by a
further 1.4% and is indistinguishable from never rereading the todo
list.
[1] https://lore.kernel.org/git/20191125131833.GD23183@szeder.dev/
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>
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This code is heavily indented and obscures the high level logic within
the loop. Let's move it to its own function before modifying it in the
next commit. Note that there is a subtle change in behavior if the
todo list cannot be reread. Previously todo_list->current was
incremented before returning, now it returns immediately.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various mergy operations have been prepared to work efficiently
with the sparse index.
* ds/mergies-with-sparse-index:
sparse-index: integrate with cherry-pick and rebase
sequencer: ensure full index if not ORT strategy
t1092: add cherry-pick, rebase tests
merge-ort: expand only for out-of-cone conflicts
merge: make sparse-aware with ORT
diff: ignore sparse paths in diffstat
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Code clean up to migrate callers from older advice_config[] based
API to newer advice_if_enabled() and advice_enabled() API.
* ab/retire-advice-config:
advice: move advice.graftFileDeprecated squashing to commit.[ch]
advice: remove use of global advice_add_embedded_repo
advice: remove read uses of most global `advice_` variables
advice: add enum variants for missing advice variables
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The advice message that "git cherry-pick" gives when it asks
conflicted replay of a commit to be resolved by the end user has
been updated.
* zh/cherry-pick-advice:
cherry-pick: use better advice message
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"git rebase" by default skips changes that are equivalent to
commits that are already in the history the branch is rebased onto;
give messages when this happens to let the users be aware of
skipped commits, and also teach them how to tell "rebase" to keep
duplicated changes.
* js/advise-when-skipping-cherry-picked:
sequencer: advise if skipping cherry-picked commit
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The sequencer is used by 'cherry-pick' and 'rebase' to sequence a list
of operations that modify the index. Since we intend to remove the need
for 'command_requires_full_index', we need to ensure the sparse index is
expanded every time it is written to disk between these steps. That is,
unless the merge strategy is 'ort' where the index can remain sparse
throughout.
There are two main places to be extra careful about a full index:
1. Right before calling merge_trees(), ensure the index is full. This
happens within an 'else' where the 'if' block checks if the 'ort'
strategy is selected.
2. During read_and_refresh_cache(), the index might be written to disk
and converted to sparse in the process. Ensure it expands back to
full afterwards by checking if the strategy is _not_ 'ort'. This
'if' statement is the logical negation of the 'if' in item (1).
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various bugs in "git rebase -r" have been fixed.
* pw/rebase-r-fixes:
rebase -r: fix merge -c with a merge strategy
rebase -r: don't write .git/MERGE_MSG when fast-forwarding
rebase -i: add another reword test
rebase -r: make 'merge -c' behave like reword
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Checking out all the paths from HEAD during the last conflicted
step in "git rebase" and continuing would cause the step to be
skipped (which is expected), but leaves MERGE_MSG file behind in
$GIT_DIR and confuses the next "git commit", which has been
corrected.
* pw/rebase-skip-final-fix:
rebase --continue: remove .git/MERGE_MSG
rebase --apply: restore some tests
t3403: fix commit authorship
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Silently skipping commits when rebasing with --no-reapply-cherry-picks
(currently the default behavior) can cause user confusion. Issue
warnings when this happens, as well as advice on how to preserve the
skipped commits.
These warnings and advice are displayed only when using the (default)
"merge" rebase backend.
Update the git-rebase docs to mention the warnings and advice.
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use `ort` instead of `recursive` as the default merge strategy.
* en/ort-becomes-the-default:
Update docs for change of default merge backend
Change default merge backend from recursive to ort
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Documentation updates.
* en/merge-strategy-docs:
Update error message and code comment
merge-strategies.txt: add coverage of the `ort` merge strategy
git-rebase.txt: correct out-of-date and misleading text about renames
merge-strategies.txt: fix simple capitalization error
merge-strategies.txt: avoid giving special preference to patience algorithm
merge-strategies.txt: do not imply using copy detection is desired
merge-strategies.txt: update wording for the resolve strategy
Documentation: edit awkward references to `git merge-recursive`
directory-rename-detection.txt: small updates due to merge-ort optimizations
git-rebase.txt: correct antiquated claims about --rebase-merges
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In c4a09cc9ccb (Merge branch 'hw/advise-ng', 2020-03-25), a new API for
accessing advice variables was introduced and deprecated `advice_config`
in favor of a new array, `advice_setting`.
This patch ports all but two uses which read the status of the global
`advice_` variables over to the new `advice_enabled` API. We'll deal
with advice_add_embedded_repo and advice_graft_file_deprecated
separately.
Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Pathname expansion (like "~username/") learned a way to specify a
location relative to Git installation (e.g. its $sharedir which is
$(prefix)/share), with "%(prefix)".
* js/expand-runtime-prefix:
expand_user_path: allow in-flight topics to keep using the old name
interpolate_path(): allow specifying paths relative to the runtime prefix
Use a better name for the function interpolating paths
expand_user_path(): clarify the role of the `real_home` parameter
expand_user_path(): remove stale part of the comment
tests: exercise the RUNTIME_PREFIX feature
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"git cherry-pick", upon seeing a conflict, says:
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'
as if running "git commit" to conclude the resolution of
this single step were the end of the story. This stems from
the fact that the command originally was to pick a single
commit and not a range of commits, and the message was
written back then and has not been adjusted.
When picking a range of commits and the command stops with a
conflict in the middle of the range, however, after
resolving the conflict and (optionally) recording the result
with "git commit", the user has to run "git cherry-pick
--continue" to have the rest of the range dealt with,
"--skip" to drop the current commit, or "--abort" to discard
the series.
Suggest use of "git cherry-pick --continue/--skip/--abort"
so that the message also covers the case where a range of
commits are being picked.
Similarly, this optimization can be applied to git revert,
suggest use of "git revert --continue/--skip/--abort" so
that the message also covers the case where a range of
commits are being reverted.
It is worth mentioning that now we use advice() to print
the content of GIT_CHERRY_PICK_HELP in print_advice(), each
line of output will start with "hint: ".
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Hariom Verma <hariom18599@gmail.com>
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a rebase is started with a --strategy option other than "ort" or
"recursive" then "merge -c" does not allow the user to reword the
commit message.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When fast-forwarding we do not create a new commit so .git/MERGE_MSG
is not removed and can end up seeding the message of a commit made
after the rebase has finished. Avoid writing .git/MERGE_MSG when we
are fast-forwarding by writing the file after the fast-forward
checks. Note that there are no changes to the fast-forward code, it is
simply moved.
Note that the way this change is implemented means we no longer write
the author script when fast-forwarding either. I believe this is safe
for the reasons below but it is a departure from what we do when
fast-forwarding a non-merge commit. If we reword the merge then 'git
commit --amend' will keep the authorship of the commit we're rewording
as it ignores GIT_AUTHOR_* unless --reset-author is passed. It will
also export the correct GIT_AUTHOR_* variables to any hooks and we
already test the authorship of the reworded commit. If we are not
rewording then we no longer call spilt_ident() which means we are no
longer checking the commit author header looks sane. However this is
what we already do when fast-forwarding non-merge commits in
skip_unnecessary_picks() so I don't think we're breaking any promises
by not checking the author here.
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>
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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]. For this reason the reword command ensures
that there are no uncommitted changes when rewording. The reword
command also allows the user to edit the todo list while the rebase is
paused. As 'merge -c' also rewords commits make it behave like reword
and add a test.
[1] https://lore.kernel.org/git/xmqqlfvu4be3.fsf@gitster-ct.c.googlers.com/T/#m133009cb91cf0917bcf667300f061178be56680a
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the user skips the final commit by removing all the changes from
the index and worktree with 'git restore' (or read-tree) and then runs
'git rebase --continue' .git/MERGE_MSG is left behind. This will seed
the commit message the next time the user commits which is not what we
want to happen.
Reported-by: Victor Gambier <vgambier@excilys.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are a few reasons to switch the default:
* Correctness
* Extensibility
* Performance
I'll provide some summaries about each.
=== Correctness ===
The original impetus for a new merge backend was to fix issues that were
difficult to fix within recursive's design. The success with this goal
is perhaps most easily demonstrated by running the following:
$ git grep -2 KNOWN_FAILURE t/ | grep -A 4 GIT_TEST_MERGE_ALGORITHM
$ git grep test_expect_merge_algorithm.failure.success t/
$ git grep test_expect_merge_algorithm.success.failure t/
In order, these greps show:
* Seven sets of submodule tests (10 total tests) that fail with
recursive but succeed with ort
* 22 other tests that fail with recursive, but succeed with ort
* 0 tests that pass with recursive, but fail with ort
=== Extensibility ===
Being able to perform merges without touching the working tree or index
makes it possible to create new features that were difficult with the
old backend:
* Merging, cherry-picking, rebasing, reverting in bare repositories...
or just on branches that aren't checked out.
* `git diff AUTO_MERGE` -- ability to see what changes the user has
made to resolve conflicts so far (see commit 5291828df8 ("merge-ort:
write $GIT_DIR/AUTO_MERGE whenever we hit a conflict", 2021-03-20)
* A --remerge-diff option for log/show, used to show diffs for merges
that display the difference between what an automatic merge would
have created and what was recorded in the merge. (This option will
often result in an empty diff because many merges are clean, but for
the non-clean ones it will show how conflicts were fixed including
the removal of conflict markers, and also show additional changes
made outside of conflict regions to e.g. fix semantic conflicts.)
* A --remerge-diff-only option for log/show, similar to --remerge-diff
but also showing how cherry-picks or reverts differed from what an
automatic cherry-pick or revert would provide.
The last three have been implemented already (though only one has been
submitted upstream so far; the others were waiting for performance work
to complete), and I still plan to implement the first one.
=== Performance ===
I'll quote from the summary of my final optimization for merge-ort
(while fixing the testcase name from 'no-renames' to 'few-renames'):
Timings
Infinite
merge- merge- Parallelism
recursive recursive of rename merge-ort
v2.30.0 current detection current
---------- --------- ----------- ---------
few-renames: 18.912 s 18.030 s 11.699 s 198.3 ms
mega-renames: 5964.031 s 361.281 s 203.886 s 661.8 ms
just-one-mega: 149.583 s 11.009 s 7.553 s 264.6 ms
Speedup factors
Infinite
merge- merge- Parallelism
recursive recursive of rename
v2.30.0 current detection merge-ort
---------- --------- ----------- ---------
few-renames: 1 1.05 1.6 95
mega-renames: 1 16.5 29 9012
just-one-mega: 1 13.6 20 565
And, for partial clone users:
Factor reduction in number of objects needed
Infinite
merge- merge- Parallelism
recursive recursive of rename
v2.30.0 current detection merge-ort
---------- --------- ----------- ---------
mega-renames: 1 1 1 181.3
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There were two locations in the code that referred to 'merge-recursive'
but which were also applicable to 'merge-ort'. Update them to more
general wording.
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is not immediately clear what `expand_user_path()` means, so let's
rename it to `interpolate_path()`. This also opens the path for
interpolating more than just a home directory.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add missing __attribute__((format)) function attributes to various
"static" functions that take printf arguments.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the reflog_message() function added in
96e832a5fd6 (sequencer (rebase -i): refactor setting the reflog
message, 2017-01-02), it gained another user in
9055e401dd6 (sequencer: introduce new commands to reset the revision,
2018-04-25). Let's move it around and remove the forward declaration
added in the latter commit.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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SHA-256 transition.
* bc/hash-transition-interop-part-1:
hex: print objects using the hash algorithm member
hex: default to the_hash_algo on zero algorithm value
builtin/pack-objects: avoid using struct object_id for pack hash
commit-graph: don't store file hashes as struct object_id
builtin/show-index: set the algorithm for object IDs
hash: provide per-algorithm null OIDs
hash: set, copy, and use algo field in struct object_id
builtin/pack-redundant: avoid casting buffers to struct object_id
Use the final_oid_fn to finalize hashing of object IDs
hash: add a function to finalize object IDs
http-push: set algorithm when reading object ID
Always use oidread to read into struct object_id
hash: add an algo member to struct object_id
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"git rebase --[no-]reschedule-failed-exec" did not work well with
its configuration variable, which has been corrected.
* ab/rebase-no-reschedule-failed-exec:
rebase: don't override --no-reschedule-failed-exec with config
rebase tests: camel-case rebase.rescheduleFailedExec consistently
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Up until recently, object IDs did not have an algorithm member, only a
hash. Consequently, it was possible to share one null (all-zeros)
object ID among all hash algorithms. Now that we're going to be
handling objects from multiple hash algorithms, it's important to make
sure that all object IDs have a correct algorithm field.
Introduce a per-algorithm null OID, and add it to struct hash_algo.
Introduce a wrapper function as well, and use it everywhere we used to
use the null_oid constant.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Plug the ort merge backend throughout the rest of the system, and
start testing it as a replacement for the recursive backend.
* en/ort-readiness:
Add testing with merge-ort merge strategy
t6423: mark remaining expected failure under merge-ort as such
Revert "merge-ort: ignore the directory rename split conflict for now"
merge-recursive: add a bunch of FIXME comments documenting known bugs
merge-ort: write $GIT_DIR/AUTO_MERGE whenever we hit a conflict
t: mark several submodule merging tests as fixed under merge-ort
merge-ort: implement CE_SKIP_WORKTREE handling with conflicted entries
t6428: new test for SKIP_WORKTREE handling and conflicts
merge-ort: support subtree shifting
merge-ort: let renormalization change modify/delete into clean delete
merge-ort: have ll_merge() use a special attr_index for renormalization
merge-ort: add a special minimal index just for renormalization
merge-ort: use STABLE_QSORT instead of QSORT where required
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Fix a bug in how --no-reschedule-failed-exec interacts with
rebase.rescheduleFailedExec=true being set in the config. Before this
change the --no-reschedule-failed-exec config option would be
overridden by the config.
This bug happened because of the particulars of how "rebase" works
v.s. most other git commands when it comes to parsing options and
config:
When we read the config and parse the CLI options we correctly prefer
the --no-reschedule-failed-exec option over
rebase.rescheduleFailedExec=true in the config. So far so good.
However the --reschedule-failed-exec option doesn't take effect when
the rebase starts (we'd just create a
".git/rebase-merge/reschedule-failed-exec" file if it was true). It
only takes effect when the exec command fails, at which point we'll
reschedule the failed "exec" command.
Since we only wrote out the positive
".git/rebase-merge/reschedule-failed-exec" under
--reschedule-failed-exec, but nothing with --no-reschedule-failed-exec
we'll forget that we asked not to reschedule failed "exec", and would
happily re-read the config and see that
rebase.rescheduleFailedExec=true is set.
So the config will effectively override the user having explicitly
disabled the option on the command-line.
Even more confusingly: Since rebase accepts different options based on
its state there wasn't even a way to get around this with "rebase
--continue --no-reschedule-failed-exec" (but you could of course set
the config with "rebase -c ...").
I think the least bad way out of this is to declare that for such
options and config whatever we decide at the beginning of the rebase
goes. So we'll now always create either a "reschedule-failed-exec" or
a "no-reschedule-failed-exec file at the start, not just the former if
we decided we wanted the feature.
With this new worldview you can no longer change the setting once a
rebase has started except by manually removing the state files
discussed above. I think making it work like that is the the least
confusing thing we can do.
In the future we might want to learn to change the setting in the
middle by combining "--edit-todo" with
"--[no-]reschedule-failed-exec", we currently don't support combining
those options, or any other way to change the state in the middle of
the rebase short of manually editing the files in
".git/rebase-merge/*".
The bug being fixed here originally came about because of a
combination of the behavior of the code added in d421afa0c66 (rebase:
introduce --reschedule-failed-exec, 2018-12-10) and the addition of
the config variable in 969de3ff0e0 (rebase: add a config option to
default to --reschedule-failed-exec, 2018-12-10).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git cherry-pick/revert" with or without "--[no-]edit" did not spawn
the editor as expected (e.g. "revert --no-edit" after a conflict
still asked to edit the message), which has been corrected.
* en/sequencer-edit-upon-conflict-fix:
sequencer: fix edit handling for cherry-pick and revert messages
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save_opts() should save any non-default values. It was intended to do
this, but since most options in struct replay_opts default to 0, it only
saved non-zero values. Unfortunately, this does not always work for
options.edit. Roughly speaking, options.edit had a default value of 0
for cherry-pick but a default value of 1 for revert. Make save_opts()
record a value whenever it differs from the default.
options.edit was also overly simplistic; we had more than two cases.
The behavior that previously existed was as follows:
Non-conflict commits Right after Conflict
revert Edit iff isatty(0) Edit (ignore isatty(0))
cherry-pick No edit See above
Specify --edit Edit (ignore isatty(0)) See above
Specify --no-edit (*) See above
(*) Before stopping for conflicts, No edit is the behavior. After
stopping for conflicts, the --no-edit flag is not saved so see
the first two rows.
However, the expected behavior is:
Non-conflict commits Right after Conflict
revert Edit iff isatty(0) Edit iff isatty(0)
cherry-pick No edit Edit iff isatty(0)
Specify --edit Edit (ignore isatty(0)) Edit (ignore isatty(0))
Specify --no-edit No edit No edit
In order to get the expected behavior, we need to change options.edit
to a tri-state: unspecified, false, or true. When specified, we follow
what it says. When unspecified, we need to check whether the current
commit being created is resolving a conflict as well as consulting
options.action and isatty(0). While at it, add a should_edit() utility
function that compresses options.edit down to a boolean based on the
additional information for the non-conflict case.
continue_single_pick() is the function responsible for resuming after
conflict cases, regardless of whether there is one commit being picked
or many. Make this function stop assuming edit behavior in all cases,
so that it can correctly handle !isatty(0) and specific requests to not
edit the commit message.
Reported-by: Renato Botelho <garga@freebsd.org>
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git commit --fixup=<commit>", which was to tweak the changes made
to the contents while keeping the original log message intact,
learned "--fixup=(amend|reword):<commit>", that can be used to
tweak both the message and the contents, and only the message,
respectively.
* cm/rebase-i-fixup-amend-reword:
doc/git-commit: add documentation for fixup=[amend|reword] options
t3437: use --fixup with options to create amend! commit
t7500: add tests for --fixup=[amend|reword] options
commit: add a reword suboption to --fixup
commit: add amend suboption to --fixup to create amend! commit
sequencer: export and rename subject_length()
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Follow-up fixes to "cm/rebase-i" topic.
* cm/rebase-i-updates:
doc/rebase -i: fix typo in the documentation of 'fixup' command
t/t3437: fixup the test 'multiple fixup -c opens editor once'
t/t3437: use named commits in the tests
t/t3437: simplify and document the test helpers
t/t3437: check the author date of fixed up commit
t/t3437: remove the dependency of 'expected-message' file from tests
t/t3437: fixup here-docs in the 'setup' test
t/lib-rebase: update the documentation of FAKE_LINES
rebase -i: clarify and fix 'fixup -c' rebase-todo help
sequencer: rename a few functions
sequencer: fixup the datatype of the 'flag' argument
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"rebase -i" is getting cleaned up and also enhanced.
* cm/rebase-i:
doc/git-rebase: add documentation for fixup [-C|-c] options
rebase -i: teach --autosquash to work with amend!
t3437: test script for fixup [-C|-c] options in interactive rebase
rebase -i: add fixup [-C | -c] command
sequencer: use const variable for commit message comments
sequencer: pass todo_item to do_pick_commit()
rebase -i: comment out squash!/fixup! subjects from squash message
sequencer: factor out code to append squash message
rebase -i: only write fixup-message when it's needed
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There are a variety of questions users might ask while resolving
conflicts:
* What changes have been made since the previous (first) parent?
* What changes are staged?
* What is still unstaged? (or what is still conflicted?)
* What changes did I make to resolve conflicts so far?
The first three of these have simple answers:
* git diff HEAD
* git diff --cached
* git diff
There was no way to answer the final question previously. Adding one
is trivial in merge-ort, since it works by creating a tree representing
what should be written to the working copy complete with conflict
markers. Simply write that tree to .git/AUTO_MERGE, allowing users to
answer the fourth question with
* git diff AUTO_MERGE
I avoided using a name like "MERGE_AUTO", because that would be
merge-specific (much like MERGE_HEAD, REBASE_HEAD, REVERT_HEAD,
CHERRY_PICK_HEAD) and I wanted a name that didn't change depending on
which type of operation the merge was part of.
Ensure that paths which clean out other temporary operation-specific
files (e.g. CHERRY_PICK_HEAD, MERGE_MSG, rebase-merge/ state directory)
also clean out this AUTO_MERGE file.
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function can be used in other parts of git. Let's move the
function to commit.c and also rename it to make the name of the
function more generic.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add and apply a semantic patch for converting code that open-codes
CALLOC_ARRAY to use it instead. It shortens the code and infers the
element size automatically.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Cleaning various codepaths up.
* ds/more-index-cleanups:
t1092: test interesting sparse-checkout scenarios
test-lib: test_region looks for trace2 regions
sparse-checkout: load sparse-checkout patterns
name-hash: use trace2 regions for init
repository: add repo reference to index_state
fsmonitor: de-duplicate BUG()s around dirty bits
cache-tree: extract subtree_pos()
cache-tree: simplify verify_cache() prototype
cache-tree: clean up cache_tree_update()
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Rename functions to make them more descriptive and while at it, remove
unnecessary 'inline' of the skip_fixupish() function.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As 'flag' is a combination of bits, so change its datatype from
'enum todo_item_flags' to 'unsigned'.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the commit subject starts with "amend!" then rearrange it like a
"fixup!" commit and replace `pick` command with `fixup -C` command,
which is used to fixup up the content if any and replaces the original
commit message with amend! commit's message.
Original-patch-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add options to `fixup` command to fixup both the commit contents and
message. `fixup -C` command is used to replace the original commit
message and `fixup -c`, additionally allows to edit the commit message.
Original-patch-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This makes it easier to use and reuse the comments.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As an additional member of the structure todo_item will be required in
future commits pass the complete structure.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When squashing commit messages the squash!/fixup! subjects are not of
interest so comment them out to stop them becoming part of the final
message.
This change breaks a bunch of --autosquash tests which rely on the
"squash! <subject>" line appearing in the final commit message. This is
addressed by adding a second line to the commit message of the "squash!
..." commits and testing for that.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 6e98de72c03 (sequencer (rebase -i): add support for the 'fixup' and
'squash' commands, 2017-01-02), this developer introduced a change of
behavior by mistake: when encountering a `fixup!` commit (or multiple
`fixup!` commits) without any `squash!` commit thrown in, the final `git
commit` was invoked with `--cleanup=strip`. Prior to that commit, the
commit command had been called without that `--cleanup` option.
Since we explicitly read the original commit message from a file in that
case, there is really no sense in forcing that clean-up.
We actually need to actively suppress that clean-up lest a configured
`commit.cleanup` may interfere with what we want to do: leave the commit
message unchanged.
Reported-by: Vojtěch Knyttl <vojtech@knyt.tl>
Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Make the method safer by allocating a cache_tree member for the given
index_state if it is not already present. This is preferrable to a
BUG() statement or returning with an error because future callers will
want to populate an empty cache-tree using this method.
Callers can also remove their conditional allocations of cache_tree.
Also drop local variables that can be found directly from the 'istate'
parameter.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This code is going to grow over the next two commits so move it to
its own function.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The file "$GIT_DIR/rebase-merge/fixup-message" is only used for fixup
commands, there's no point in writing it for squash commands as it is
immediately deleted.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Phillip Wood
Derrick Stolee
Josh Steadmon
Ben Boeckel
ZheNing Hu
Elijah Newren
Johannes Schindelin
Ævar Arnfjörð Bjarmason
brian m. carlson
Charvi Mendiratta
René Scharfe