Merge branch 'maint'

* maint:
  GIT 1.6.4.3
  svn: properly escape arguments for authors-prog
  http.c: remove verification of remote packs
  grep: accept relative paths outside current working directory
  grep: fix exit status if external_grep() punts

Conflicts:
	GIT-VERSION-GEN
	RelNotes

8 files changed, 76 insertions, 39 deletions

diff --git a/Documentation/RelNotes-1.6.4.3.txt b/Documentation/RelNotes-1.6.4.3.txt
new file mode 100644
index 000000000..4f29babde
--- /dev/null
+++ b/Documentation/RelNotes-1.6.4.3.txt
@@ -0,0 +1,29 @@
+GIT v1.6.4.3 Release Notes
+==========================
+
+Fixes since v1.6.4.2
+--------------------
+
+* "git clone" from an empty repository gave unnecessary error message,
+  even though it did everything else correctly.
+
+* "git cvsserver" invoked git commands via "git-foo" style, which has long
+  been deprecated.
+
+* "git fetch" and "git clone" had an extra sanity check to verify the
+  presense of the corresponding *.pack file before downloading *.idx
+  file by issuing a HEAD request.  Github server however sometimes
+  gave 500 (Internal server error) response to HEAD even if a GET
+  request for *.pack file to the same URL would have succeeded, and broke
+  clone over HTTP from some of their repositories.  As a workaround, this
+  verification has been removed (as it is not absolutely necessary).
+
+* "git grep" did not like relative pathname to refer outside the current
+  directory when run from a subdirectory.
+
+* an error message from "git push" was formatted in a very ugly way.
+
+* "git svn" did not quote the subversion user name correctly when
+  running its author-prog helper program.
+
+Other minor documentation updates are included.
diff --git a/Documentation/git.txt b/Documentation/git.txt
index ad44cac71..f91cabb4c 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -43,9 +43,10 @@ unreleased) version of git, that is available from 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v1.6.4.2/git.html[documentation for release 1.6.4.2]
+* link:v1.6.4.3/git.html[documentation for release 1.6.4.3]
 
 * release notes for
+  link:RelNotes-1.6.4.3.txt[1.6.4.3],
   link:RelNotes-1.6.4.2.txt[1.6.4.2],
   link:RelNotes-1.6.4.1.txt[1.6.4.1],
   link:RelNotes-1.6.4.txt[1.6.4].
diff --git a/builtin-grep.c b/builtin-grep.c
index ad0e0a538..761799d7d 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -13,6 +13,7 @@
 #include "parse-options.h"
 #include "userdiff.h"
 #include "grep.h"
+#include "quote.h"
 
 #ifndef NO_EXTERNAL_GREP
 #ifdef __unix__
@@ -157,8 +158,8 @@ static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char
 	unsigned long size;
 	char *data;
 	enum object_type type;
-	char *to_free = NULL;
 	int hit;
+	struct strbuf pathbuf = STRBUF_INIT;
 
 	data = read_sha1_file(sha1, &type, &size);
 	if (!data) {
@@ -166,26 +167,13 @@ static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char
 		return 0;
 	}
 	if (opt->relative && opt->prefix_length) {
-		static char name_buf[PATH_MAX];
-		char *cp;
-		int name_len = strlen(name) - opt->prefix_length + 1;
-
-		if (!tree_name_len)
-			name += opt->prefix_length;
-		else {
-			if (ARRAY_SIZE(name_buf) <= name_len)
-				cp = to_free = xmalloc(name_len);
-			else
-				cp = name_buf;
-			memcpy(cp, name, tree_name_len);
-			strcpy(cp + tree_name_len,
-			       name + tree_name_len + opt->prefix_length);
-			name = cp;
-		}
+		quote_path_relative(name + tree_name_len, -1, &pathbuf, opt->prefix);
+		strbuf_insert(&pathbuf, 0, name, tree_name_len);
+		name = pathbuf.buf;
 	}
 	hit = grep_buffer(opt, name, data, size);
+	strbuf_release(&pathbuf);
 	free(data);
-	free(to_free);
 	return hit;
 }
 
@@ -195,6 +183,7 @@ static int grep_file(struct grep_opt *opt, const char *filename)
 	int i;
 	char *data;
 	size_t sz;
+	struct strbuf buf = STRBUF_INIT;
 
 	if (lstat(filename, &st) < 0) {
 	err_ret:
@@ -219,8 +208,9 @@ static int grep_file(struct grep_opt *opt, const char *filename)
 	}
 	close(i);
 	if (opt->relative && opt->prefix_length)
-		filename += opt->prefix_length;
+		filename = quote_path_relative(filename, -1, &buf, opt->prefix);
 	i = grep_buffer(opt, filename, data, sz);
+	strbuf_release(&buf);
 	free(data);
 	return i;
 }
@@ -503,6 +493,7 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached,
 		hit = external_grep(opt, paths, cached);
 		if (hit >= 0)
 			return hit;
+		hit = 0;
 	}
 #endif
 
@@ -798,6 +789,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	};
 
 	memset(&opt, 0, sizeof(opt));
+	opt.prefix = prefix;
 	opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0;
 	opt.relative = 1;
 	opt.pathname = 1;
@@ -868,15 +860,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 			verify_filename(prefix, argv[j]);
 	}
 
-	if (i < argc) {
+	if (i < argc)
 		paths = get_pathspec(prefix, argv + i);
-		if (opt.prefix_length && opt.relative) {
-			/* Make sure we do not get outside of paths */
-			for (i = 0; paths[i]; i++)
-				if (strncmp(prefix, paths[i], opt.prefix_length))
-					die("git grep: cannot generate relative filenames containing '..'");
-		}
-	}
 	else if (prefix) {
 		paths = xcalloc(2, sizeof(const char *));
 		paths[0] = prefix;
diff --git a/git-svn.perl b/git-svn.perl
index ce4fef9d3..e0ec258e3 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -2836,6 +2836,7 @@ sub other_gs {
 
 sub call_authors_prog {
 	my ($orig_author) = @_;
+	$orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
 	my $author = `$::_authors_prog $orig_author`;
 	if ($? != 0) {
 		die "$::_authors_prog failed with exit code $?\n"
diff --git a/grep.h b/grep.h
index 28e6b2a8e..f6eecc62c 100644
--- a/grep.h
+++ b/grep.h
@@ -59,6 +59,7 @@ struct grep_opt {
 	struct grep_pat *pattern_list;
 	struct grep_pat **pattern_tail;
 	struct grep_expr *pattern_expression;
+	const char *prefix;
 	int prefix_length;
 	regex_t regexp;
 	int linenum;
diff --git a/http.c b/http.c
index 5926c5b3f..84def9ff2 100644
--- a/http.c
+++ b/http.c
@@ -869,17 +869,6 @@ static int fetch_pack_index(unsigned char *sha1, const char *base_url)
 	char *url;
 	struct strbuf buf = STRBUF_INIT;
 
-	/* Don't use the index if the pack isn't there */
-	end_url_with_slash(&buf, base_url);
-	strbuf_addf(&buf, "objects/pack/pack-%s.pack", hex);
-	url = strbuf_detach(&buf, 0);
-
-	if (http_get_strbuf(url, NULL, 0)) {
-		ret = error("Unable to verify pack %s is available",
-			    hex);
-		goto cleanup;
-	}
-
 	if (has_pack_index(sha1)) {
 		ret = 0;
 		goto cleanup;
diff --git a/t/t7002-grep.sh b/t/t7002-grep.sh
index b4709e28b..ae56a36ea 100755
--- a/t/t7002-grep.sh
+++ b/t/t7002-grep.sh
@@ -328,4 +328,21 @@ test_expect_success 'grep -p -B5' '
 	test_cmp expected actual
 '
 
+test_expect_success 'grep from a subdirectory to search wider area (1)' '
+	mkdir -p s &&
+	(
+		cd s && git grep "x x x" ..
+	)
+'
+
+test_expect_success 'grep from a subdirectory to search wider area (2)' '
+	mkdir -p s &&
+	(
+		cd s || exit 1
+		( git grep xxyyzz .. >out ; echo $? >status )
+		! test -s out &&
+		test 1 = $(cat status)
+	)
+'
+
 test_done
diff --git a/t/t9138-git-svn-authors-prog.sh b/t/t9138-git-svn-authors-prog.sh
index a4b00f2a3..83cc5fc9d 100755
--- a/t/t9138-git-svn-authors-prog.sh
+++ b/t/t9138-git-svn-authors-prog.sh
@@ -66,4 +66,18 @@ test_expect_success 'authors-file overrode authors-prog' '
 	)
 	'
 
+git --git-dir=x/.git config --unset svn.authorsfile
+git --git-dir=x/.git config --unset svn.authorsprog
+
+test_expect_success 'authors-prog handled special characters in username' '
+	svn mkdir -m bad --username "xyz; touch evil" "$svnrepo"/bad &&
+	(
+		cd x &&
+		git svn --authors-prog=../svn-authors-prog fetch &&
+		git rev-list -1 --pretty=raw refs/remotes/git-svn |
+		grep "^author xyz; touch evil <xyz; touch evil@example\.com> " &&
+		! test -f evil
+	)
+'
+
 test_done