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doc/git-commit: add documentation for fixup=[amend|reword] options

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Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Charvi Mendiratta 2021-03-15 13:24:36 +05:30 committed by Junio C Hamano
parent 8bedae4599
commit 00ea64ed7a
2 changed files with 50 additions and 16 deletions
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45
Documentation/git-commit.txt
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@ -9,7 +9,7 @@ SYNOPSIS
--------
[verse]
'git commit' [-a | --interactive | --patch] [-s] [-v] [-u<mode>] [--amend]
[--dry-run] [(-c | -C | --fixup | --squash) <commit>]
[--dry-run] [(-c | -C | --squash) <commit> | --fixup [(amend|reword):]<commit>)]
[-F <file> | -m <msg>] [--reset-author] [--allow-empty]
[--allow-empty-message] [--no-verify] [-e] [--author=<author>]
[--date=<date>] [--cleanup=<mode>] [--[no-]status]
@ -86,11 +86,44 @@ OPTIONS
Like '-C', but with `-c` the editor is invoked, so that
the user can further edit the commit message.
--fixup=<commit>::
Construct a commit message for use with `rebase --autosquash`.
The commit message will be the subject line from the specified
commit with a prefix of "fixup! ". See linkgit:git-rebase[1]
for details.
--fixup=[(amend|reword):]<commit>::
Create a new commit which "fixes up" `<commit>` when applied with
`git rebase --autosquash`. Plain `--fixup=<commit>` creates a
"fixup!" commit which changes the content of `<commit>` but leaves
its log message untouched. `--fixup=amend:<commit>` is similar but
creates an "amend!" commit which also replaces the log message of
`<commit>` with the log message of the "amend!" commit.
`--fixup=reword:<commit>` creates an "amend!" commit which
replaces the log message of `<commit>` with its own log message
but makes no changes to the content of `<commit>`.
+
The commit created by plain `--fixup=<commit>` has a subject
composed of "fixup!" followed by the subject line from <commit>,
and is recognized specially by `git rebase --autosquash`. The `-m`
option may be used to supplement the log message of the created
commit, but the additional commentary will be thrown away once the
"fixup!" commit is squashed into `<commit>` by
`git rebase --autosquash`.
+
The commit created by `--fixup=amend:<commit>` is similar but its
subject is instead prefixed with "amend!". The log message of
<commit> is copied into the log message of the "amend!" commit and
opened in an editor so it can be refined. When `git rebase
--autosquash` squashes the "amend!" commit into `<commit>`, the
log message of `<commit>` is replaced by the refined log message
from the "amend!" commit. It is an error for the "amend!" commit's
log message to be empty unless `--allow-empty-message` is
specified.
+
`--fixup=reword:<commit>` is shorthand for `--fixup=amend:<commit>
--only`. It creates an "amend!" commit with only a log message
(ignoring any changes staged in the index). When squashed by `git
rebase --autosquash`, it replaces the log message of `<commit>`
without making any other changes.
+
Neither "fixup!" nor "amend!" commits change authorship of
`<commit>` when applied by `git rebase --autosquash`.
See linkgit:git-rebase[1] for details.
--squash=<commit>::
Construct a commit message for use with `rebase --autosquash`.

21
Documentation/git-rebase.txt
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@ -593,16 +593,17 @@ See also INCOMPATIBLE OPTIONS below.
--autosquash::
--no-autosquash::
When the commit log message begins with "squash! ..." (or
"fixup! ..."), and there is already a commit in the todo list that
matches the same `...`, automatically modify the todo list of rebase
-i so that the commit marked for squashing comes right after the
commit to be modified, and change the action of the moved commit
from `pick` to `squash` (or `fixup`). A commit matches the `...` if
the commit subject matches, or if the `...` refers to the commit's
hash. As a fall-back, partial matches of the commit subject work,
too. The recommended way to create fixup/squash commits is by using
the `--fixup`/`--squash` options of linkgit:git-commit[1].
When the commit log message begins with "squash! ..." or "fixup! ..."
or "amend! ...", and there is already a commit in the todo list that
matches the same `...`, automatically modify the todo list of
`rebase -i`, so that the commit marked for squashing comes right after
the commit to be modified, and change the action of the moved commit
from `pick` to `squash` or `fixup` or `fixup -C` respectively. A commit
matches the `...` if the commit subject matches, or if the `...` refers
to the commit's hash. As a fall-back, partial matches of the commit
subject work, too. The recommended way to create fixup/amend/squash
commits is by using the `--fixup`, `--fixup=amend:` or `--fixup=reword:`
and `--squash` options respectively of linkgit:git-commit[1].
+
If the `--autosquash` option is enabled by default using the
configuration variable `rebase.autoSquash`, this option can be