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Diffstat (limited to 'builtin-grep.c')
-rw-r--r--builtin-grep.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/builtin-grep.c b/builtin-grep.c
index 3f12ba3..89489dd 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -22,6 +22,28 @@
static int builtin_grep;
+static int grep_config(const char *var, const char *value, void *cb)
+{
+ struct grep_opt *opt = cb;
+
+ if (!strcmp(var, "grep.color") || !strcmp(var, "color.grep")) {
+ opt->color = git_config_colorbool(var, value, -1);
+ return 0;
+ }
+ if (!strcmp(var, "grep.color.external") ||
+ !strcmp(var, "color.grep.external")) {
+ return git_config_string(&(opt->color_external), var, value);
+ }
+ if (!strcmp(var, "grep.color.match") ||
+ !strcmp(var, "color.grep.match")) {
+ if (!value)
+ return config_error_nonbool(var);
+ color_parse(value, var, opt->color_match);
+ return 0;
+ }
+ return git_color_default_config(var, value, cb);
+}
+
/*
* git grep pathspecs are somewhat different from diff-tree pathspecs;
* pathname wildcards are allowed.
@@ -269,6 +291,21 @@ static int flush_grep(struct grep_opt *opt,
return status;
}
+static void grep_add_color(struct strbuf *sb, const char *escape_seq)
+{
+ size_t orig_len = sb->len;
+
+ while (*escape_seq) {
+ if (*escape_seq == 'm')
+ strbuf_addch(sb, ';');
+ else if (*escape_seq != '\033' && *escape_seq != '[')
+ strbuf_addch(sb, *escape_seq);
+ escape_seq++;
+ }
+ if (sb->len > orig_len && sb->buf[sb->len - 1] == ';')
+ strbuf_setlen(sb, sb->len - 1);
+}
+
static int external_grep(struct grep_opt *opt, const char **paths, int cached)
{
int i, nr, argc, hit, len, status;
@@ -339,6 +376,23 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
push_arg("-e");
push_arg(p->pattern);
}
+ if (opt->color) {
+ struct strbuf sb = STRBUF_INIT;
+
+ grep_add_color(&sb, opt->color_match);
+ setenv("GREP_COLOR", sb.buf, 1);
+
+ strbuf_reset(&sb);
+ strbuf_addstr(&sb, "mt=");
+ grep_add_color(&sb, opt->color_match);
+ strbuf_addstr(&sb, ":sl=:cx=:fn=:ln=:bn=:se=");
+ setenv("GREP_COLORS", sb.buf, 1);
+
+ strbuf_release(&sb);
+
+ if (opt->color_external && strlen(opt->color_external) > 0)
+ push_arg(opt->color_external);
+ }
hit = 0;
argc = nr;
@@ -536,6 +590,12 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
opt.pattern_tail = &opt.pattern_list;
opt.regflags = REG_NEWLINE;
+ strcpy(opt.color_match, GIT_COLOR_RED GIT_COLOR_BOLD);
+ opt.color = -1;
+ git_config(grep_config, &opt);
+ if (opt.color == -1)
+ opt.color = git_use_color_default;
+
/*
* If there is no -- then the paths must exist in the working
* tree. If there is no explicit pattern specified with -e or
@@ -732,6 +792,14 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
opt.relative = 0;
continue;
}
+ if (!strcmp("--color", arg)) {
+ opt.color = 1;
+ continue;
+ }
+ if (!strcmp("--no-color", arg)) {
+ opt.color = 0;
+ continue;
+ }
if (!strcmp("--", arg)) {
/* later processing wants to have this at argv[1] */
argv--;
@@ -757,6 +825,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
}
}
+ if (opt.color && !opt.color_external)
+ builtin_grep = 1;
if (!opt.pattern_list)
die("no pattern given.");
if ((opt.regflags != REG_NEWLINE) && opt.fixed)