Merge branch 'jc/name' into next

* jc/name:
  sha1_name: make core.warnambiguousrefs the default.
  sha1_name: warning ambiguous refs.

blame.c

@@ -752,6 +752,7 @@ int main(int argc, const char **argv)
 	int found_rename;
 
 	const char* prefix = setup_git_directory();
+	git_config(git_default_config);
 
 	for(i = 1; i < argc; i++) {
 		if(options) {

cat-file.c

@@ -100,6 +100,7 @@ int main(int argc, char **argv)
 	int opt;
 
 	setup_git_directory();
+	git_config(git_default_config);
 	if (argc != 3 || get_sha1(argv[2], sha1))
 		usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
 

environment.c

@@ -14,7 +14,7 @@ char git_default_name[MAX_GITNAME];
 int trust_executable_bit = 1;
 int assume_unchanged = 0;
 int only_use_symrefs = 0;
-int warn_ambiguous_refs = 0;
+int warn_ambiguous_refs = 1;
 int repository_format_version = 0;
 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
 int shared_repository = 0;

ls-tree.c

@@ -90,6 +90,7 @@ int main(int argc, const char **argv)
 	struct tree *tree;
 
 	prefix = setup_git_directory();
+	git_config(git_default_config);
 	if (prefix && *prefix)
 		chomp_prefix = strlen(prefix);
 	while (1 < argc && argv[1][0] == '-') {

merge-base.c

@@ -237,6 +237,7 @@ int main(int argc, char **argv)
 	unsigned char rev1key[20], rev2key[20];
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	while (1 < argc && argv[1][0] == '-') {
 		char *arg = argv[1];

name-rev.c

@@ -127,6 +127,7 @@ int main(int argc, char **argv)
 	int as_is = 0, all = 0, transform_stdin = 0;
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	if (argc < 2)
 		usage(name_rev_usage);

read-tree.c

@@ -717,6 +717,7 @@ int main(int argc, char **argv)
 	merge_fn_t fn = NULL;
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	newfd = hold_index_file_for_update(&cache_file, get_index_file());
 	if (newfd < 0)

rev-parse.c

@@ -166,6 +166,8 @@ int main(int argc, char **argv)
 	unsigned char sha1[20];
 	const char *prefix = setup_git_directory();
 	
+	git_config(git_default_config);
+
 	for (i = 1; i < argc; i++) {
 		struct stat st;
 		char *arg = argv[i];

send-pack.c

@@ -362,6 +362,8 @@ int main(int argc, char **argv)
 	pid_t pid;
 
 	setup_git_directory();
+	git_config(git_default_config);
+
 	argv++;
 	for (i = 1; i < argc; i++, argv++) {
 		char *arg = *argv;

sha1_name.c

@@ -236,7 +236,7 @@ static int ambiguous_path(const char *path, int len)
 static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
 {
 	static const char *fmt[] = {
-		"/%.*s",
+		"%.*s",
 		"refs/%.*s",
 		"refs/tags/%.*s",
 		"refs/heads/%.*s",
@@ -263,8 +263,7 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
 		pathname = git_path(*p, len, str);
 		if (!read_ref(pathname, this_result)) {
 			if (warn_ambiguous_refs) {
-				if (already_found &&
-				    !memcmp(sha1, sha1_from_ref, 20))
+				if (already_found)
 					fprintf(stderr, warning, len, str);
 				already_found++;
 			}

tar-tree.c

@@ -380,6 +380,7 @@ int main(int argc, char **argv)
 	struct tree_desc tree;
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	switch (argc) {
 	case 3:

unpack-file.c

@@ -30,6 +30,7 @@ int main(int argc, char **argv)
 		usage("git-unpack-file <sha1>");
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	puts(create_temp_file(sha1));
 	return 0;

update-ref.c

@@ -25,6 +25,7 @@ int main(int argc, char **argv)
 	int fd, written;
 
 	setup_git_directory();
+	git_config(git_default_config);
 	if (argc < 3 || argc > 4)
 		usage(git_update_ref_usage);