Commit Graph

718 Commits

Author SHA1 Message Date
Johannes Schindelin
17919c3585 sequencer: restrict scope of a formerly public function
The function to add the `exec` commands to the todo list only needed to
be public API because it was not only used internally by the sequencer,
but also by `git rebase --preserve-merges`.

Now that that mode has been removed, we no longer need that function to
be scoped publicly.

Helped-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07 21:45:33 -07:00
Ævar Arnfjörð Bjarmason
48ca53cac4 *.c static functions: add missing __attribute__((format))
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>
2021-07-13 15:20:20 -07:00
Ævar Arnfjörð Bjarmason
d4ac305073 sequencer.c: move static function to avoid forward decl
Move the reflog_message() function added in
96e832a5fd (sequencer (rebase -i): refactor setting the reflog
message, 2017-01-02), it gained another user in
9055e401dd (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>
2021-07-12 12:09:53 -07:00
Junio C Hamano
aaa3c8065d Merge branch 'bc/hash-transition-interop-part-1'
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
2021-05-10 16:59:46 +09:00
Junio C Hamano
0377ac98dc Merge branch 'ab/rebase-no-reschedule-failed-exec'
"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
2021-05-07 12:47:40 +09:00
brian m. carlson
14228447c9 hash: provide per-algorithm null OIDs
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>
2021-04-27 16:31:39 +09:00
Junio C Hamano
7bec8e7fa6 Merge branch 'en/ort-readiness'
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
2021-04-16 13:53:34 -07:00
Ævar Arnfjörð Bjarmason
e5b32bffd1 rebase: don't override --no-reschedule-failed-exec with config
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 d421afa0c6 (rebase:
introduce --reschedule-failed-exec, 2018-12-10) and the addition of
the config variable in 969de3ff0e (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>
2021-04-10 23:23:49 -07:00
Junio C Hamano
82fd285e46 Merge branch 'en/sequencer-edit-upon-conflict-fix'
"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
2021-04-08 13:23:26 -07:00
Elijah Newren
39edfd5cbc sequencer: fix edit handling for cherry-pick and revert messages
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>
2021-03-31 14:10:50 -07:00
Junio C Hamano
89519f662c Merge branch 'cm/rebase-i-fixup-amend-reword'
"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()
2021-03-26 14:59:03 -07:00
Junio C Hamano
fde07fc356 Merge branch 'cm/rebase-i-updates'
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
2021-03-26 14:59:03 -07:00
Junio C Hamano
ce4296cf2b Merge branch 'cm/rebase-i'
"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
2021-03-26 14:59:03 -07:00
Elijah Newren
5291828df8 merge-ort: write $GIT_DIR/AUTO_MERGE whenever we hit a conflict
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>
2021-03-20 12:35:40 -07:00
Charvi Mendiratta
6e0e288779 sequencer: export and rename subject_length()
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>
2021-03-15 14:29:35 -07:00
René Scharfe
ca56dadb4b use CALLOC_ARRAY
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>
2021-03-13 16:00:09 -08:00
Junio C Hamano
2f794620f5 Merge branch 'ds/more-index-cleanups'
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()
2021-02-10 14:48:33 -08:00
Charvi Mendiratta
1f9696019a sequencer: rename a few functions
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>
2021-02-08 13:09:57 -08:00
Charvi Mendiratta
a25314c1ec sequencer: fixup the datatype of the 'flag' argument
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>
2021-02-08 13:09:57 -08:00
Charvi Mendiratta
bae5b4aea5 rebase -i: teach --autosquash to work with amend!
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>
2021-01-29 15:21:56 -08:00
Charvi Mendiratta
9e3cebd97c rebase -i: add fixup [-C | -c] command
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>
2021-01-29 15:21:56 -08:00
Charvi Mendiratta
71ee81cd9e sequencer: use const variable for commit message comments
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>
2021-01-29 15:21:56 -08:00
Charvi Mendiratta
ae70e34f23 sequencer: pass todo_item to do_pick_commit()
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>
2021-01-29 15:21:56 -08:00
Phillip Wood
7cdb968254 rebase -i: comment out squash!/fixup! subjects from squash message
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>
2021-01-29 15:21:56 -08:00
Johannes Schindelin
f7d42ceec5 rebase -i: do leave commit message intact in fixup! chains
In 6e98de72c0 (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>
2021-01-28 12:12:37 -08:00
Derrick Stolee
fb0882648e cache-tree: clean up cache_tree_update()
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>
2021-01-23 17:14:07 -08:00
Phillip Wood
498bb5b82e sequencer: factor out code to append squash message
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>
2021-01-20 17:50:11 -08:00
Phillip Wood
eab0df0e5b rebase -i: only write fixup-message when it's needed
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>
2021-01-20 17:50:11 -08:00
Junio C Hamano
bf0a430f70 Merge branch 'en/strmap'
A specialization of hashmap that uses a string as key has been
introduced.  Hopefully it will see wider use over time.

* en/strmap:
  shortlog: use strset from strmap.h
  Use new HASHMAP_INIT macro to simplify hashmap initialization
  strmap: take advantage of FLEXPTR_ALLOC_STR when relevant
  strmap: enable allocations to come from a mem_pool
  strmap: add a strset sub-type
  strmap: split create_entry() out of strmap_put()
  strmap: add functions facilitating use as a string->int map
  strmap: enable faster clearing and reusing of strmaps
  strmap: add more utility functions
  strmap: new utility functions
  hashmap: provide deallocation function names
  hashmap: introduce a new hashmap_partial_clear()
  hashmap: allow re-use after hashmap_free()
  hashmap: adjust spacing to fix argument alignment
  hashmap: add usage documentation explaining hashmap_free[_entries]()
2020-11-21 15:14:38 -08:00
Junio C Hamano
a1f95951ef Merge branch 'en/merge-ort-api-null-impl'
Preparation for a new merge strategy.

* en/merge-ort-api-null-impl:
  merge,rebase,revert: select ort or recursive by config or environment
  fast-rebase: demonstrate merge-ort's API via new test-tool command
  merge-ort-wrappers: new convience wrappers to mimic the old merge API
  merge-ort: barebones API of new merge strategy with empty implementation
2020-11-18 13:32:53 -08:00
Junio C Hamano
c042c455d4 Merge branch 'pw/rebase-i-orig-head'
"git rebase -i" did not store ORIG_HEAD correctly.

* pw/rebase-i-orig-head:
  rebase -i: simplify get_revision_ranges()
  rebase -i: use struct object_id when writing state
  rebase -i: use struct object_id rather than looking up commit
  rebase -i: stop overwriting ORIG_HEAD buffer
2020-11-18 13:32:53 -08:00
Junio C Hamano
7b66375e6f Merge branch 'jc/sequencer-stopped-sha-simplify'
Recently the format of an internal state file "rebase -i" uses has
been tightened up for consistency, which would hurt those who start
"rebase -i" with old git and then continue with new git.  Loosen
the reader side a bit (which we may want to tighten again in a year
or so).

* jc/sequencer-stopped-sha-simplify:
  sequencer: tolerate abbreviated stopped-sha file
2020-11-11 13:18:40 -08:00
Junio C Hamano
6a44c9c0d0 Merge branch 'jk/committer-date-is-author-date-fix-simplify'
Code simplification.

* jk/committer-date-is-author-date-fix-simplify:
  am, sequencer: stop parsing our own committer ident
2020-11-09 14:06:28 -08:00
Phillip Wood
a2bb10d06d rebase -i: use struct object_id when writing state
Rather than passing a string around pass the struct object_id that the
string was created from call oid_hex() when we write the file.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-04 14:10:41 -08:00
Phillip Wood
f3e27a02d5 rebase -i: use struct object_id rather than looking up commit
We already have a struct object_id containing the oid that we want to
set ORIG_HEAD to so use that rather than converting it to a string and
then calling get_oid() on that string.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-04 14:10:41 -08:00
Elijah Newren
14c4586c2d merge,rebase,revert: select ort or recursive by config or environment
Allow the testsuite to run where it treats requests for "recursive" or
the default merge algorithm via consulting the environment variable
GIT_TEST_MERGE_ALGORITHM which is expected to either be "recursive" (the
old traditional algorithm) or "ort" (the new algorithm).

Also, allow folks to pick the new algorithm via config setting.  It
turns out builtin/merge.c already had a way to allow users to specify a
different default merge algorithm: pull.twohead.  Rather odd
configuration name (especially to be in the 'pull' namespace rather than
'merge') but it's there.  Add that same configuration to rebase,
cherry-pick, and revert.

This required updating the various callsites that called merge_trees()
or merge_recursive() to conditionally call the new API, so this serves
as another demonstration of what the new API looks and feels like.
There are almost certainly some callsites that have not yet been
modified to work with the new merge algorithm, but this represents the
ones that I have been testing with thus far.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-02 16:35:50 -08:00
Junio C Hamano
f3e63abb27 Merge branch 'en/sequencer-rollback-lock-cleanup'
Code clean-up.

* en/sequencer-rollback-lock-cleanup:
  sequencer: remove duplicate rollback_lock_file() call
2020-11-02 13:17:44 -08:00
Junio C Hamano
73af6a4fab Merge branch 'sc/sequencer-gpg-octopus'
"git rebase --rebase-merges" did not correctly pass --gpg-sign
command line option to underlying "git merge" when replaying a merge
using non-default merge strategy or when replaying an octopus merge
(because replaying a two-head merge with the default strategy was
done in a separate codepath, the problem did not trigger for most
users), which has been corrected.

* sc/sequencer-gpg-octopus:
  t3435: add tests for rebase -r GPG signing
  sequencer: pass explicit --no-gpg-sign to merge
  sequencer: fix gpg option passed to merge subcommand
2020-11-02 13:17:43 -08:00
Elijah Newren
6da1a25814 hashmap: provide deallocation function names
hashmap_free(), hashmap_free_entries(), and hashmap_free_() have existed
for a while, but aren't necessarily the clearest names, especially with
hashmap_partial_clear() being added to the mix and lazy-initialization
now being supported.  Peff suggested we adopt the following names[1]:

  - hashmap_clear() - remove all entries and de-allocate any
    hashmap-specific data, but be ready for reuse

  - hashmap_clear_and_free() - ditto, but free the entries themselves

  - hashmap_partial_clear() - remove all entries but don't deallocate
    table

  - hashmap_partial_clear_and_free() - ditto, but free the entries

This patch provides the new names and converts all existing callers over
to the new naming scheme.

[1] https://lore.kernel.org/git/20201030125059.GA3277724@coredump.intra.peff.net/

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-02 12:15:50 -08:00
Junio C Hamano
f34687dc81 Merge branch 'jk/committer-date-is-author-date-fix'
In 2.29, "--committer-date-is-author-date" option of "rebase" and
"am" subcommands lost the e-mail address by mistake, which has been
corrected.

* jk/committer-date-is-author-date-fix:
  rebase: fix broken email with --committer-date-is-author-date
  am: fix broken email with --committer-date-is-author-date
  t3436: check --committer-date-is-author-date result more carefully
2020-10-26 14:59:58 -07:00
Jeff King
2020451c5b am, sequencer: stop parsing our own committer ident
For the --committer-date-is-author-date option of git-am and git-rebase,
we format the committer ident, then re-parse it to find the name and
email, and then feed those back to fmt_ident().

We can simplify this by handling it all at the time of the fmt_ident()
call. We pass in the appropriate getenv() results, and if they're not
present, then our WANT_COMMITTER_IDENT flag tells fmt_ident() to fill in
the appropriate value from the config. Which is exactly what
git_committer_ident() was doing under the hood.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-26 09:59:57 -07:00
Jeff King
5f35edd9d7 rebase: fix broken email with --committer-date-is-author-date
Commit 7573cec52c (rebase -i: support --committer-date-is-author-date,
2020-08-17) copied the committer ident-parsing code from builtin/am.c.
And in doing so, it copied a bug in which we always set the email to an
empty string. We fixed the version in git-am in the previous commit;
this commit fixes the copied code.

Reported-by: VenomVendor <info@venomvendor.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-23 08:25:22 -07:00
Jonathan Tan
c779386182 sequencer: tolerate abbreviated stopped-sha file
In 0512eabd91 ("sequencer: stop abbreviating stopped-sha file",
2020-09-25), Git was taught both to write full object names to the
stopped-sha file and to require full object names when reading. However,
a user would experience a problem if they started an interactive rebase
using an old version of Git and then continued with a current version of
Git (for example, if the system version of Git was updated in the
meantime).

Teach Git to allow object names of any length when reading.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-21 23:04:16 -07:00
Elijah Newren
9a82db1056 sequencer: remove duplicate rollback_lock_file() call
Commit 2b6ad0f4bc ("rebase --rebase-merges: add support for octopus
merges", 2017-12-21) introduced a case where rollback_lock_file() was
unconditionally called twice in a row with no intervening commands.
Remove the duplicate.

Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-21 12:54:44 -07:00
Samuel Čavoj
19dad040ed sequencer: pass explicit --no-gpg-sign to merge
The merge subcommand launched for merges with non-default strategy would
use its own default behaviour to decide how to sign commits, regardless
of what opts->gpg_sign was set to. For example the --no-gpg-sign flag
given to rebase explicitly would get ignored, if commit.gpgsign was set
to true.

Fix the issue and add a test case excercising this behaviour.

Signed-off-by: Samuel Čavoj <samuel@cavoj.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18 13:08:32 -07:00
Samuel Čavoj
ae03c97ac0 sequencer: fix gpg option passed to merge subcommand
When performing a rebase with --rebase-merges using either a custom
strategy specified with -s or an octopus merge, and at the same time
having gpgsign enabled (either rebase -S or config commit.gpgsign), the
operation would fail on making the merge commit. Instead of "-S%s" with
the key id substituted, only the bare key id would get passed to the
underlying merge command, which tried to interpret it as a ref.

Fix the issue and add test cases as suggested by Johannes Schindelin and
Junio C Hamano.

Signed-off-by: Samuel Čavoj <samuel@cavoj.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18 13:08:31 -07:00
Junio C Hamano
19dd352d03 Merge branch 'jk/unused'
Code cleanup.

* jk/unused:
  dir.c: drop unused "untracked" from treat_path_fast()
  sequencer: handle ignore_footer when parsing trailers
  test-advise: check argument count with argc instead of argv
  sparse-checkout: fill in some options boilerplate
  sequencer: drop repository argument from run_git_commit()
  push: drop unused repo argument to do_push()
  assert PARSE_OPT_NONEG in parse-options callbacks
  env--helper: write to opt->value in parseopt helper
  drop unused argc parameters
  convert: drop unused crlf_action from check_global_conv_flags_eol()
2020-10-05 14:01:52 -07:00
Junio C Hamano
84cdeed1cb Merge branch 'jc/sequencer-stopped-sha-simplify'
Code simplification.

* jc/sequencer-stopped-sha-simplify:
  sequencer: stop abbreviating stopped-sha file
2020-10-04 12:49:11 -07:00
Jeff King
9dad073d4b sequencer: handle ignore_footer when parsing trailers
The append_signoff() function takes an "ignore_footer"
argument, which specifies a number of bytes at the end of
the message buffer which should not be considered (they
cannot contain trailers, and the trailer is spliced in
before them).

But to find the existing trailers, it calls into
has_conforming_trailer(). That function takes an
ignore_footer parameter, but since 967dfd4d56 (sequencer:
use trailer's trailer layout, 2016-11-02) the parameter is
completely ignored.

The trailer interface we're using takes a single string,
with no option to tell it to use part of the string.
However, since we have a mutable strbuf, we can work around
this by simply overwriting (and later restoring) the
boundary with a NUL.

I'm not sure if this can actually trigger a bug in practice.
It's easy to get a non-zero ignore_footer by doing something
like this:

  git commit -F - --cleanup=verbatim <<-EOF
  subject

  body

  Signed-off-by: me

  # this looks like a comment, but is actually in the
  # message! That makes the earlier s-o-b fake.
  EOF

  git commit --amend -s

There git-commit calls ignore_non_trailer() to count up the
"#" cruft, which becomes the ignore_footer header. But it
works even without this patch! That's because the trailer
code _also_ calls ignore_non_trailer() and skips the cruft,
too. So it happens to work because the only callers with a
non-zero ignore_footer are using the exact same function
that the trailer parser uses internally.

And that seems true for all of the current callers, but
there's nothing guaranteeing it. We're better off only
feeding the correct buffer to the trailer code in the first
place.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-30 12:53:48 -07:00
Jeff King
20f4b044a6 sequencer: drop repository argument from run_git_commit()
When we switched to using an external git-commit call in b0a3186140
(sequencer: simplify root commit creation, 2019-08-19), this function
didn't need to care about the repository object any more.

Arguably we could be passing along the repository path to the external
git-commit by using "--git-dir=r->path" here. But for the most part the
sequencer code relies on sub-process finding the same repository we're
already in (using the same environment variables or discovery process we
did). But we don't have a convenient interface for doing so, and there's
no indication that we need to. Let's just drop the unused parameter for
now.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-30 12:53:47 -07:00