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commit: add --trailer option

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Historically, Git has supported the 'Signed-off-by' commit trailer
using the '--signoff' and the '-s' option from the command line.
But users may need to provide other trailer information from the
command line such as "Helped-by", "Reported-by", "Mentored-by",

Now implement a new `--trailer <token>[(=|:)<value>]` option to pass
other trailers to `interpret-trailers` and insert them into commit
messages.

Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
ZheNing Hu
2021-03-23 13:55:57 +00:00
committed by Junio C Hamano
parent 1424303384
commit 2daae3d1d1
3 changed files with 347 additions and 1 deletions
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22
builtin/commit.c
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@ -113,6 +113,7 @@ static int config_commit_verbose = -1; /* unspecified */
static int no_post_rewrite, allow_empty_message, pathspec_file_nul;
static char *untracked_files_arg, *force_date, *ignore_submodule_arg, *ignored_arg;
static char *sign_commit, *pathspec_from_file;
static struct strvec trailer_args = STRVEC_INIT;
/*
* The default commit message cleanup mode will remove the lines
@ -131,6 +132,14 @@ static struct strbuf message = STRBUF_INIT;
static enum wt_status_format status_format = STATUS_FORMAT_UNSPECIFIED;
static int opt_pass_trailer(const struct option *opt, const char *arg, int unset)
{
BUG_ON_OPT_NEG(unset);
strvec_pushl(&trailer_args, "--trailer", arg, NULL);
return 0;
}
static int opt_parse_porcelain(const struct option *opt, const char *arg, int unset)
{
enum wt_status_format *value = (enum wt_status_format *)opt->value;
@ -958,6 +967,18 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
fclose(s->fp);
if (trailer_args.nr) {
struct child_process run_trailer = CHILD_PROCESS_INIT;
strvec_pushl(&run_trailer.args, "interpret-trailers",
"--in-place", git_path_commit_editmsg(), NULL);
strvec_pushv(&run_trailer.args, trailer_args.v);
run_trailer.git_cmd = 1;
if (run_command(&run_trailer))
die(_("unable to pass trailers to --trailers"));
strvec_clear(&trailer_args);
}
/*
* Reject an attempt to record a non-merge empty commit without
* explicit --allow-empty. In the cherry-pick case, it may be
@ -1507,6 +1528,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
OPT_STRING(0, "fixup", &fixup_message, N_("commit"), N_("use autosquash formatted message to fixup specified commit")),
OPT_STRING(0, "squash", &squash_message, N_("commit"), N_("use autosquash formatted message to squash specified commit")),
OPT_BOOL(0, "reset-author", &renew_authorship, N_("the commit is authored by me now (used with -C/-c/--amend)")),
OPT_CALLBACK_F(0, "trailer", NULL, N_("trailer"), N_("add custom trailer(s)"), PARSE_OPT_NONEG, opt_pass_trailer),
OPT_BOOL('s', "signoff", &signoff, N_("add a Signed-off-by trailer")),
OPT_FILENAME('t', "template", &template_file, N_("use specified template file")),
OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")),