Add "-h/-H" parsing to "git grep"

It turns out that I actually wanted to avoid the filenames (because I
didn't care - I just wanted to see the context in which something was
used) when doing a grep. But since "git grep" didn't take the "-h"
parameter, I ended up having to do "grep -5 -h *.c" instead.

So here's a trivial patch that adds "-h" (and thus has to enable -H too)
to "git grep" parsing.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/builtin-grep.c b/builtin-grep.c
index 6430f6d79ed58afa810a2643a13700be6579aee5..ed87a5550c7dab6de56327b8acc0e3e2c897e39e 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -138,6 +138,7 @@ struct grep_opt {
        unsigned binary:2;
        unsigned extended:1;
        unsigned relative:1;
+       unsigned pathname:1;
        int regflags;
        unsigned pre_context;
        unsigned post_context;
@@ -316,7 +317,8 @@ static int word_char(char ch)
 static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
                      const char *name, unsigned lno, char sign)
 {
-       printf("%s%c", name, sign);
+       if (opt->pathname)
+               printf("%s%c", name, sign);
        if (opt->linenum)
                printf("%d%c", lno, sign);
        printf("%.*s\n", (int)(eol-bol), bol);
@@ -691,6 +693,8 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
                push_arg("-F");
        if (opt->linenum)
                push_arg("-n");
+       if (!opt->pathname)
+               push_arg("-h");
        if (opt->regflags & REG_EXTENDED)
                push_arg("-E");
        if (opt->regflags & REG_ICASE)
@@ -911,6 +915,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
        memset(&opt, 0, sizeof(opt));
        opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
        opt.relative = 1;
+       opt.pathname = 1;
        opt.pattern_tail = &opt.pattern_list;
        opt.regflags = REG_NEWLINE;
 
@@ -970,10 +975,12 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                        opt.linenum = 1;
                        continue;
                }
+               if (!strcmp("-h", arg)) {
+                       opt.pathname = 0;
+                       continue;
+               }
                if (!strcmp("-H", arg)) {
-                       /* We always show the pathname, so this
-                        * is a noop.
-                        */
+                       opt.pathname = 1;
                        continue;
                }
                if (!strcmp("-l", arg) ||