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interpret-trailers: add an option to show only the trailers

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In theory it's easy for any reader who wants to parse
trailers to do so. But there are a lot of subtle corner
cases around what counts as a trailer, when the trailer
block begins and ends, etc. Since interpret-trailers already
has our parsing logic, let's let callers ask it to just
output the trailers.

They still have to parse the "key: value" lines, but at
least they can ignore all of the other corner cases.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2017-08-15 06:23:21 -04:00
committed by Junio C Hamano
parent 8abc89800c
commit 56c493ed1b
5 changed files with 58 additions and 9 deletions
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builtin/interpret-trailers.c
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@ -24,6 +24,7 @@ int cmd_interpret_trailers(int argc, const char **argv, const char *prefix)
struct option options[] = {
OPT_BOOL(0, "in-place", &opts.in_place, N_("edit files in place")),
OPT_BOOL(0, "trim-empty", &opts.trim_empty, N_("trim empty trailers")),
OPT_BOOL(0, "only-trailers", &opts.only_trailers, N_("output only the trailers")),
OPT_STRING_LIST(0, "trailer", &trailers, N_("trailer"),
N_("trailer(s) to add")),
OPT_END()