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grep: add --max-count command line option

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This patch adds a command line option analogous to that of GNU
grep(1)'s -m / --max-count, which users might already be used to.
This makes it possible to limit the amount of matches shown in the
output while keeping the functionality of other options such as -C
(show code context) or -p (show containing function), which would be
difficult to do with a shell pipeline (e.g. head(1)).

Signed-off-by: Carlos López 00xc@protonmail.com
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Carlos López
2022-06-22 19:47:32 +00:00
committed by Junio C Hamano
parent f770e9f396
commit 68437ede53
5 changed files with 108 additions and 1 deletions
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2
grep.h
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@ -171,6 +171,7 @@ struct grep_opt {
int show_hunk_mark;
int file_break;
int heading;
int max_count;
void *priv;
void (*output)(struct grep_opt *opt, const void *data, size_t size);
@ -181,6 +182,7 @@ struct grep_opt {
.relative = 1, \
.pathname = 1, \
.max_depth = -1, \
.max_count = -1, \
.pattern_type_option = GREP_PATTERN_TYPE_UNSPECIFIED, \
.colors = { \
[GREP_COLOR_CONTEXT] = "", \