Re: [PATCH v6] [GSOC] commit: add --trailer option

On Mon, Mar 15, 2021 at 7:35 AM ZheNing Hu via GitGitGadget
[off-list ref] wrote:

From: ZheNing Hu <redacted>

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 <redacted>
---
    [GSOC] commit: add --trailer option

    Now maintainers or developers can also use commit
    --trailer="Signed-off-by:commiter<email>" from the command line to
    provide trailers to commit messages. This solution may be more
    generalized than v1.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-901%2Fadlternative%2Fcommit-with-multiple-signatures-v6
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-901/adlternative/commit-with-multiple-signatures-v6
Pull-Request: https://github.com/gitgitgadget/git/pull/901

Range-diff vs v5:

 1:  ca91accb2852 ! 1:  c99ce75da792 [GSOC] commit: add --trailer option
     @@ builtin/commit.c: 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;
     -+struct child_process run_trailer = CHILD_PROCESS_INIT;
      +struct strvec trailer_args = STRVEC_INIT;

I suggested added "static" in front of the above line, like this:

static struct strvec trailer_args = STRVEC_INIT;

You can check with `git grep '^static struct strvec' '*.c'` and `git
grep '^struct strvec' '*.c'` that we use "static" when declaring a
'struct strvec' globally.

[...]

      + if (trailer_args.nr) {
     ++         static struct child_process run_trailer = CHILD_PROCESS_INIT;

I didn't suggest using "static" here.

     ++
      +         strvec_pushl(&run_trailer.args, "interpret-trailers",

Thanks for working on this!