diff options
| -rw-r--r-- | Documentation/git-grep.txt | 7 | ||||
| -rw-r--r-- | builtin/grep.c | 6 | ||||
| -rw-r--r-- | grep.c | 51 | ||||
| -rw-r--r-- | grep.h | 1 | ||||
| -rwxr-xr-x | t/t7810-grep.sh | 15 |
5 files changed, 63 insertions, 17 deletions
diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 0de3493b80..a3049af1a3 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -17,7 +17,7 @@ SYNOPSIS [-l | --files-with-matches] [-L | --files-without-match] [(-O | --open-files-in-pager) [<pager>]] [-z | --null] - [-c | --count] [--all-match] [-q | --quiet] + [ -o | --only-matching ] [-c | --count] [--all-match] [-q | --quiet] [--max-depth <depth>] [--color[=<when>] | --no-color] [--break] [--heading] [-p | --show-function] @@ -201,6 +201,11 @@ providing this option will cause it to die. Output \0 instead of the character that normally follows a file name. +-o:: +--only-matching:: + Print only the matched (non-empty) parts of a matching line, with each such + part on a separate output line. + -c:: --count:: Instead of showing every matched line, show the number of diff --git a/builtin/grep.c b/builtin/grep.c index 61bcaf6e58..228b83990f 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -843,6 +843,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix) OPT_BOOL_F('z', "null", &opt.null_following_name, N_("print NUL after filenames"), PARSE_OPT_NOCOMPLETE), + OPT_BOOL('o', "only-matching", &opt.only_matching, + N_("show only matching parts of a line")), OPT_BOOL('c', "count", &opt.count, N_("show the number of matches instead of matching lines")), OPT__COLOR(&opt.color, N_("highlight matches")), @@ -962,6 +964,10 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (!opt.pattern_list) die(_("no pattern given.")); + /* --only-matching has no effect with --invert. */ + if (opt.invert) + opt.only_matching = 0; + /* * We have to find "--" in a separate pass, because its presence * influences how we will parse arguments that come before it. @@ -51,6 +51,7 @@ void init_grep_defaults(void) color_set(opt->color_match_selected, GIT_COLOR_BOLD_RED); color_set(opt->color_selected, ""); color_set(opt->color_sep, GIT_COLOR_CYAN); + opt->only_matching = 0; opt->color = -1; opt->output = std_output; } @@ -158,6 +159,7 @@ 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; @@ -1446,7 +1448,8 @@ 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, *line_color = NULL; + const char *match_color = NULL; + const char *line_color = NULL; if (opt->file_break && opt->last_shown == 0) { if (opt->show_hunk_mark) @@ -1462,39 +1465,55 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol, opt->output(opt, "\n", 1); } } - show_line_header(opt, name, lno, cno, sign); - if (opt->color) { + 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->color_match_selected; - else - match_color = opt->color_match_context; - if (sign == ':') - line_color = opt->color_selected; - else if (sign == '-') - line_color = opt->color_context; - else if (sign == '=') - line_color = opt->color_function; + if (opt->color) { + if (sign == ':') + match_color = opt->color_match_selected; + else + match_color = opt->color_match_context; + if (sign == ':') + line_color = opt->color_selected; + else if (sign == '-') + line_color = opt->color_context; + else if (sign == '=') + line_color = opt->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 @@ -150,6 +150,7 @@ struct grep_opt { int relative; int pathname; int null_following_name; + int only_matching; int color; int max_depth; int funcname; diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh index 9312c8daf5..d8c232dbf4 100755 --- a/t/t7810-grep.sh +++ b/t/t7810-grep.sh @@ -262,6 +262,21 @@ do fi ' + test_expect_success "grep $L (with --column, --only-matching)" ' + { + echo ${HC}file:1:5:mmap + echo ${HC}file:2:5:mmap + echo ${HC}file:3:5:mmap + echo ${HC}file:3:13:mmap + echo ${HC}file:4:5:mmap + echo ${HC}file:4:13:mmap + echo ${HC}file:5:5:mmap + echo ${HC}file:5:13:mmap + } >expected && + git grep --column -n -o -e mmap $H >actual && + test_cmp expected actual + ' + test_expect_success "grep $L (t-1)" ' echo "${HC}t/t:1:test" >expected && git grep -n -e test $H >actual && |