Remove unused function scope local variables

These variables were unused and can be removed safely:

  builtin-clone.c::cmd_clone(): use_local_hardlinks, use_separate_remote
  builtin-fetch-pack.c::find_common(): len
  builtin-remote.c::mv(): symref
  diff.c::show_stats():show_stats(): total
  diffcore-break.c::should_break(): base_size
  fast-import.c::validate_raw_date(): date, sign
  fsck.c::fsck_tree(): o_sha1, sha1
  xdiff-interface.c::parse_num(): read_some

Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin-clone.c

@@ -365,8 +365,6 @@ static void install_branch_config(const char *local,
 
 int cmd_clone(int argc, const char **argv, const char *prefix)
 {
-	int use_local_hardlinks = 1;
-	int use_separate_remote = 1;
 	int is_bundle = 0;
 	struct stat buf;
 	const char *repo_name, *repo, *work_tree, *git_dir;
@@ -388,9 +386,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	if (argc == 0)
 		die("You must specify a repository to clone.");
 
-	if (option_no_hardlinks)
-		use_local_hardlinks = 0;
-
 	if (option_mirror)
 		option_bare = 1;
 
@@ -399,7 +394,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 			die("--bare and --origin %s options are incompatible.",
 			    option_origin);
 		option_no_checkout = 1;
-		use_separate_remote = 0;
 	}
 
 	if (!option_origin)

builtin-fetch-pack.c

@@ -216,9 +216,8 @@ static int find_common(int fd[2], unsigned char *result_sha1,
 	if (args.depth > 0) {
 		char line[1024];
 		unsigned char sha1[20];
-		int len;
 
-		while ((len = packet_read_line(fd[0], line, sizeof(line)))) {
+		while (packet_read_line(fd[0], line, sizeof(line))) {
 			if (!prefixcmp(line, "shallow ")) {
 				if (get_sha1_hex(line + 8, sha1))
 					die("invalid shallow line: %s", line);

builtin-remote.c

@@ -484,9 +484,8 @@ static int mv(int argc, const char **argv)
 		struct string_list_item *item = remote_branches.items + i;
 		int flag = 0;
 		unsigned char sha1[20];
-		const char *symref;
 
-		symref = resolve_ref(item->string, sha1, 1, &flag);
+		resolve_ref(item->string, sha1, 1, &flag);
 		if (!(flag & REF_ISSYMREF))
 			continue;
 		if (delete_ref(item->string, NULL, REF_NODEREF))

diff.c

@@ -875,7 +875,7 @@ static void fill_print_name(struct diffstat_file *file)
 
 static void show_stats(struct diffstat_t* data, struct diff_options *options)
 {
-	int i, len, add, del, total, adds = 0, dels = 0;
+	int i, len, add, del, adds = 0, dels = 0;
 	int max_change = 0, max_len = 0;
 	int total_files = data->nr;
 	int width, name_width;
@@ -978,14 +978,12 @@ static void show_stats(struct diffstat_t* data, struct diff_options *options)
 		 */
 		add = added;
 		del = deleted;
-		total = add + del;
 		adds += add;
 		dels += del;
 
 		if (width <= max_change) {
 			add = scale_linear(add, width, max_change);
 			del = scale_linear(del, width, max_change);
-			total = add + del;
 		}
 		show_name(options->file, prefix, name, len, reset, set);
 		fprintf(options->file, "%5d%s", added + deleted,

diffcore-break.c

@@ -45,7 +45,7 @@ static int should_break(struct diff_filespec *src,
 	 * The value we return is 1 if we want the pair to be broken,
 	 * or 0 if we do not.
 	 */
-	unsigned long delta_size, base_size, max_size;
+	unsigned long delta_size, max_size;
 	unsigned long src_copied, literal_added, src_removed;
 
 	*merge_score_p = 0; /* assume no deletion --- "do not break"
@@ -64,7 +64,6 @@ static int should_break(struct diff_filespec *src,
 	if (diff_populate_filespec(src, 0) || diff_populate_filespec(dst, 0))
 		return 0; /* error but caught downstream */
 
-	base_size = ((src->size < dst->size) ? src->size : dst->size);
 	max_size = ((src->size > dst->size) ? src->size : dst->size);
 	if (max_size < MINIMUM_BREAK_SIZE)
 		return 0; /* we do not break too small filepair */

fast-import.c

@@ -1745,21 +1745,19 @@ static void parse_data(struct strbuf *sb)
 static int validate_raw_date(const char *src, char *result, int maxlen)
 {
 	const char *orig_src = src;
-	char *endp, sign;
-	unsigned long date;
+	char *endp;
 
 	errno = 0;
 
-	date = strtoul(src, &endp, 10);
+	strtoul(src, &endp, 10);
 	if (errno || endp == src || *endp != ' ')
 		return -1;
 
 	src = endp + 1;
 	if (*src != '-' && *src != '+')
 		return -1;
-	sign = *src;
 
-	date = strtoul(src + 1, &endp, 10);
+	strtoul(src + 1, &endp, 10);
 	if (errno || endp == src || *endp || (endp - orig_src) >= maxlen)
 		return -1;
 

fsck.c

@@ -148,20 +148,17 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func)
 	struct tree_desc desc;
 	unsigned o_mode;
 	const char *o_name;
-	const unsigned char *o_sha1;
 
 	init_tree_desc(&desc, item->buffer, item->size);
 
 	o_mode = 0;
 	o_name = NULL;
-	o_sha1 = NULL;
 
 	while (desc.size) {
 		unsigned mode;
 		const char *name;
-		const unsigned char *sha1;
 
-		sha1 = tree_entry_extract(&desc, &name, &mode);
+		tree_entry_extract(&desc, &name, &mode);
 
 		if (strchr(name, '/'))
 			has_full_path = 1;
@@ -207,7 +204,6 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func)
 
 		o_mode = mode;
 		o_name = name;
-		o_sha1 = sha1;
 	}
 
 	retval = 0;

xdiff-interface.c

@@ -15,11 +15,10 @@ static int parse_num(char **cp_p, int *num_p)
 {
 	char *cp = *cp_p;
 	int num = 0;
-	int read_some;
 
 	while ('0' <= *cp && *cp <= '9')
 		num = num * 10 + *cp++ - '0';
-	if (!(read_some = cp - *cp_p))
+	if (!(cp - *cp_p))
 		return -1;
 	*cp_p = cp;
 	*num_p = num;