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authorJunio C Hamano <gitster@pobox.com>2018-08-02 22:30:44 (GMT)
committerJunio C Hamano <gitster@pobox.com>2018-08-02 22:30:44 (GMT)
commit87ece7ce1133ebc5d339cad5f6f92c02e5fc712d (patch)
tree80a92c51969d8893f56b74a595ab9c260cca1091 /grep.c
parent562413eb2938b7a1aa85a2ae157ef162d51e55dc (diff)
parent9d8db06eb4a5d5577db559a0059a377914c1ce5a (diff)
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Merge branch 'tb/grep-only-matching'
"git grep" learned the "--only-matching" option. * tb/grep-only-matching: grep.c: teach 'git grep --only-matching' grep.c: extract show_line_header()
Diffstat (limited to 'grep.c')
-rw-r--r--grep.c91
1 files changed, 58 insertions, 33 deletions
diff --git a/grep.c b/grep.c
index cd7fc6f..2b26cee 100644
--- a/grep.c
+++ b/grep.c
@@ -65,6 +65,7 @@ void init_grep_defaults(void)
color_set(opt->colors[GREP_COLOR_MATCH_SELECTED], GIT_COLOR_BOLD_RED);
color_set(opt->colors[GREP_COLOR_SELECTED], "");
color_set(opt->colors[GREP_COLOR_SEP], GIT_COLOR_CYAN);
+ opt->only_matching = 0;
opt->color = -1;
opt->output = std_output;
}
@@ -159,6 +160,7 @@ void grep_init(struct grep_opt *opt, const char *prefix)
opt->pattern_tail = &opt->pattern_list;
opt->header_tail = &opt->header_list;
+ opt->only_matching = def->only_matching;
opt->color = def->color;
opt->extended_regexp_option = def->extended_regexp_option;
opt->pattern_type_option = def->pattern_type_option;
@@ -1404,26 +1406,9 @@ static int next_match(struct grep_opt *opt, char *bol, char *eol,
return hit;
}
-static void show_line(struct grep_opt *opt, char *bol, char *eol,
- const char *name, unsigned lno, ssize_t cno, char sign)
+static void show_line_header(struct grep_opt *opt, const char *name,
+ unsigned lno, ssize_t cno, char sign)
{
- int rest = eol - bol;
- const char *match_color, *line_color = NULL;
-
- if (opt->file_break && opt->last_shown == 0) {
- if (opt->show_hunk_mark)
- opt->output(opt, "\n", 1);
- } else if (opt->pre_context || opt->post_context || opt->funcbody) {
- if (opt->last_shown == 0) {
- if (opt->show_hunk_mark) {
- output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
- opt->output(opt, "\n", 1);
- }
- } else if (lno > opt->last_shown + 1) {
- output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
- opt->output(opt, "\n", 1);
- }
- }
if (opt->heading && opt->last_shown == 0) {
output_color(opt, name, strlen(name), opt->colors[GREP_COLOR_FILENAME]);
opt->output(opt, "\n", 1);
@@ -1451,38 +1436,78 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
output_color(opt, buf, strlen(buf), opt->colors[GREP_COLOR_COLUMNNO]);
output_sep(opt, sign);
}
- if (opt->color) {
+}
+
+static void show_line(struct grep_opt *opt, char *bol, char *eol,
+ const char *name, unsigned lno, ssize_t cno, char sign)
+{
+ int rest = eol - bol;
+ const char *match_color = NULL;
+ const char *line_color = NULL;
+
+ if (opt->file_break && opt->last_shown == 0) {
+ if (opt->show_hunk_mark)
+ opt->output(opt, "\n", 1);
+ } else if (opt->pre_context || opt->post_context || opt->funcbody) {
+ if (opt->last_shown == 0) {
+ if (opt->show_hunk_mark) {
+ output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
+ opt->output(opt, "\n", 1);
+ }
+ } else if (lno > opt->last_shown + 1) {
+ output_color(opt, "--", 2, opt->colors[GREP_COLOR_SEP]);
+ opt->output(opt, "\n", 1);
+ }
+ }
+ if (!opt->only_matching) {
+ /*
+ * In case the line we're being called with contains more than
+ * one match, leave printing each header to the loop below.
+ */
+ show_line_header(opt, name, lno, cno, sign);
+ }
+ if (opt->color || opt->only_matching) {
regmatch_t match;
enum grep_context ctx = GREP_CONTEXT_BODY;
int ch = *eol;
int eflags = 0;
- if (sign == ':')
- match_color = opt->colors[GREP_COLOR_MATCH_SELECTED];
- else
- match_color = opt->colors[GREP_COLOR_MATCH_CONTEXT];
- if (sign == ':')
- line_color = opt->colors[GREP_COLOR_SELECTED];
- else if (sign == '-')
- line_color = opt->colors[GREP_COLOR_CONTEXT];
- else if (sign == '=')
- line_color = opt->colors[GREP_COLOR_FUNCTION];
+ if (opt->color) {
+ if (sign == ':')
+ match_color = opt->colors[GREP_COLOR_MATCH_SELECTED];
+ else
+ match_color = opt->colors[GREP_COLOR_MATCH_CONTEXT];
+ if (sign == ':')
+ line_color = opt->colors[GREP_COLOR_SELECTED];
+ else if (sign == '-')
+ line_color = opt->colors[GREP_COLOR_CONTEXT];
+ else if (sign == '=')
+ line_color = opt->colors[GREP_COLOR_FUNCTION];
+ }
*eol = '\0';
while (next_match(opt, bol, eol, ctx, &match, eflags)) {
if (match.rm_so == match.rm_eo)
break;
- output_color(opt, bol, match.rm_so, line_color);
+ if (opt->only_matching)
+ show_line_header(opt, name, lno, cno, sign);
+ else
+ output_color(opt, bol, match.rm_so, line_color);
output_color(opt, bol + match.rm_so,
match.rm_eo - match.rm_so, match_color);
+ if (opt->only_matching)
+ opt->output(opt, "\n", 1);
bol += match.rm_eo;
+ cno += match.rm_eo;
rest -= match.rm_eo;
eflags = REG_NOTBOL;
}
*eol = ch;
}
- output_color(opt, bol, rest, line_color);
- opt->output(opt, "\n", 1);
+ if (!opt->only_matching) {
+ output_color(opt, bol, rest, line_color);
+ opt->output(opt, "\n", 1);
+ }
}
#ifndef NO_PTHREADS