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git: support --list-cmds=list-<category>

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This allows us to select any group of commands by a category defined
in command-list.txt. This is an internal/hidden option so we don't
have to be picky about the category name or worried about exposing too
much.

This will be used later by git-completion.bash to retrieve certain
command groups.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2018-05-20 20:40:00 +02:00
committed by Junio C Hamano
parent 6bb2dc0b94
commit 3c7777672b
5 changed files with 51 additions and 1 deletions
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7
git.c
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@ -60,6 +60,13 @@ static int list_cmds(const char *spec)
list_all_main_cmds(&list);
else if (match_token(spec, len, "others"))
list_all_other_cmds(&list);
else if (len > 5 && !strncmp(spec, "list-", 5)) {
struct strbuf sb = STRBUF_INIT;
strbuf_add(&sb, spec + 5, len - 5);
list_cmds_by_category(&list, sb.buf);
strbuf_release(&sb);
}
else
die(_("unsupported command listing type '%s'"), spec);
spec += len;