Revert "builtin-grep: workaround for non GNU grep."

This reverts 518920b764ee9150781e68217181b24d0712748e commit.
Linus has a more portable alternative.

diff --git a/Makefile b/Makefile
index c67108d2532ae697bae15dc5d1aed6b3f824add5..9ba608c805e6a9864414a963422094ae010e4a86 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -46,8 +46,6 @@ all:
 #
 # Define NO_MMAP if you want to avoid mmap.
 #
-# Define NO_H_OPTION_IN_GREP if your grep does not understand -H.
-#
 # Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
 #
 # Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
@@ -446,12 +444,6 @@ ifdef NO_ACCURATE_DIFF
        ALL_CFLAGS += -DNO_ACCURATE_DIFF
 endif
 
-ifdef NO_H_OPTION_IN_GREP
-       NO_H_OPTION_IN_GREP=1
-else
-       NO_H_OPTION_IN_GREP=0
-endif
-
 # Shell quote (do not use $(call) to accomodate ancient setups);
 
 SHA1_HEADER_SQ = $(subst ','\'',$(SHA1_HEADER))
@@ -534,9 +526,6 @@ git$X git.spec \
 %.o: %.S
        $(CC) -o $*.o -c $(ALL_CFLAGS) $<
 
-builtin-grep.o: builtin-grep.c
-       $(CC) -o $*.o -c $(ALL_CFLAGS) -DNO_H_OPTION_IN_GREP=$(NO_H_OPTION_IN_GREP) $<
-
 exec_cmd.o: exec_cmd.c
        $(CC) -o $*.o -c $(ALL_CFLAGS) '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' $<
 

diff --git a/builtin-grep.c b/builtin-grep.c
index 36512d8a17abccb67654b5bcfcd74a441b3e4586..66111de5148c17a156fdbfbc0d92b0c93c2b2c34 100644 (file)
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -453,6 +453,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
 
        len = nr = 0;
        push_arg("grep");
+       push_arg("-H");
        if (opt->fixed)
                push_arg("-F");
        if (opt->linenum)
@@ -502,13 +503,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
                push_arg("-e");
                push_arg(p->pattern);
        }
-
-       if (NO_H_OPTION_IN_GREP)
-               push_arg("/dev/null");
-       else {
-               push_arg("-H");
-               push_arg("--");
-       }
+       push_arg("--");
 
        hit = 0;
        argc = nr;
@@ -540,19 +535,8 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
         * Use the external "grep" command for the case where
         * we grep through the checked-out files. It tends to
         * be a lot more optimized
-        *
-        * Some grep implementations do not understand -H nor --
-        * but /dev/null can be used as a substitution in most
-        * cases.
-        *
-        * However -L and -c would slightly misbehave (-L would
-        * list /dev/null as a hit, and -c would report 0 hits
-        * from /dev/null); so do not use the external one on
-        * such platforms.
         */
-       if (!cached &&
-           (!NO_H_OPTION_IN_GREP ||
-            (!opt->count && !opt->unmatch_name_only))) {
+       if (!cached) {
                hit = external_grep(opt, paths, cached);
                if (hit >= 0)
                        return hit;