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builtin/commit: refactor --trailer logic

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git-commit adds user trailers to the commit message by passing its
`--trailer` arguments to a child process running `git-interpret-trailers
--in-place`. This logic is broadly useful, not just for git-commit but
for other commands constructing message bodies (e.g. git-tag).

Let's move this logic from git-commit to a new function in the trailer
API, so that it can be re-used in other commands.

Helped-by: Patrick Steinhardt <ps@pks.im>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: John Passaro <john.a.passaro@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
John Passaro
2024-05-05 18:49:09 +00:00
committed by Junio C Hamano
parent 56740f9910
commit 4a8618785e
3 changed files with 23 additions and 8 deletions
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9
trailer.h
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@@ -4,6 +4,8 @@
#include "list.h"
#include "strbuf.h"
struct strvec;
enum trailer_where {
WHERE_DEFAULT,
WHERE_END,
@@ -158,4 +160,11 @@ int trailer_iterator_advance(struct trailer_iterator *iter);
*/
void trailer_iterator_release(struct trailer_iterator *iter);
/*
* Augment a file to add trailers to it by running git-interpret-trailers.
* This calls run_command() and its return value is the same (i.e. 0 for
* success, various non-zero for other errors). See run-command.h.
*/
int amend_file_with_trailers(const char *path, const struct strvec *trailer_args);
#endif /* TRAILER_H */