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commit: --fixup option for use with rebase --autosquash

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This option makes it convenient to construct commit messages for use
with 'rebase --autosquash'.  The resulting commit message will be
"fixup! ..." where "..." is the subject line of the specified commit
message.

Example usage:
  $ git commit --fixup HEAD~2

Signed-off-by: Pat Notz <patnotz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pat Notz 2010-11-02 13:59:09 -06:00 committed by Junio C Hamano
parent 177b29dcab
commit d71b8ba7c9
2 changed files with 28 additions and 8 deletions
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14
Documentation/git-commit.txt
View File

@ -9,10 +9,10 @@ SYNOPSIS
--------
[verse]
'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
[(-c | -C) <commit>] [-F <file> | -m <msg>] [--reset-author]
[--allow-empty] [--allow-empty-message] [--no-verify] [-e] [--author=<author>]
[--date=<date>] [--cleanup=<mode>] [--status | --no-status] [--]
[[-i | -o ]<file>...]
[(-c | -C | --fixup) <commit>] [-F <file> | -m <msg>]
[--reset-author] [--allow-empty] [--allow-empty-message] [--no-verify]
[-e] [--author=<author>] [--date=<date>] [--cleanup=<mode>]
[--status | --no-status] [--] [[-i | -o ]<file>...]
DESCRIPTION
-----------
@ -70,6 +70,12 @@ 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.
--reset-author::
When used with -C/-c/--amend options, declare that the
authorship of the resulting commit now belongs of the committer.

22
builtin/commit.c
View File

@ -69,6 +69,7 @@ static enum {
static const char *logfile, *force_author;
static const char *template_file;
static char *edit_message, *use_message;
static char *fixup_message;
static char *author_name, *author_email, *author_date;
static int all, edit_flag, also, interactive, only, amend, signoff;
static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
@ -124,6 +125,7 @@ static struct option builtin_commit_options[] = {
OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify commit message", opt_parse_m),
OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit"),
OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"),
OPT_STRING(0, "fixup", &fixup_message, "COMMIT", "use autosquash formatted message to fixup specified commit"),
OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C-c/--amend)"),
OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
OPT_FILENAME('t', "template", &template_file, "use specified template file"),
@ -586,6 +588,16 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
hook_arg1 = "commit";
hook_arg2 = use_message;
} else if (fixup_message) {
struct pretty_print_context ctx = {0};
struct commit *commit;
commit = lookup_commit_reference_by_name(fixup_message);
if (!commit)
die("could not lookup commit %s", fixup_message);
ctx.output_encoding = get_commit_output_encoding();
format_commit_message(commit, "fixup! %s\n\n",
&sb, &ctx);
hook_arg1 = "message";
} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
die_errno("could not read MERGE_MSG");
@ -863,7 +875,7 @@ static int parse_and_validate_options(int argc, const char *argv[],
if (force_author && renew_authorship)
die("Using both --reset-author and --author does not make sense");
if (logfile || message.len || use_message)
if (logfile || message.len || use_message || fixup_message)
use_editor = 0;
if (edit_flag)
use_editor = 1;
@ -883,15 +895,17 @@ static int parse_and_validate_options(int argc, const char *argv[],
f++;
if (edit_message)
f++;
if (fixup_message)
f++;
if (logfile)
f++;
if (f > 1)
die("Only one of -c/-C/-F can be used.");
die("Only one of -c/-C/-F/--fixup can be used.");
if (message.len && f > 0)
die("Option -m cannot be combined with -c/-C/-F.");
die("Option -m cannot be combined with -c/-C/-F/--fixup.");
if (edit_message)
use_message = edit_message;
if (amend && !use_message)
if (amend && !use_message && !fixup_message)
use_message = "HEAD";
if (!use_message && renew_authorship)
die("--reset-author can be used only with -C, -c or --amend.");