remove init_pathspec() in favor of parse_pathspec()

While at there, move free_pathspec() to pathspec.c

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/blame.c

@@ -408,7 +408,7 @@ static struct origin *find_origin(struct scoreboard *sb,
 	paths[0] = origin->path;
 	paths[1] = NULL;
 
-	init_pathspec(&diff_opts.pathspec, paths);
+	parse_pathspec(&diff_opts.pathspec, PATHSPEC_ALL_MAGIC, 0, "", paths);
 	diff_setup_done(&diff_opts);
 
 	if (is_null_sha1(origin->commit->object.sha1))
@@ -486,15 +486,12 @@ static struct origin *find_rename(struct scoreboard *sb,
 	struct origin *porigin = NULL;
 	struct diff_options diff_opts;
 	int i;
-	const char *paths[2];
 
 	diff_setup(&diff_opts);
 	DIFF_OPT_SET(&diff_opts, RECURSIVE);
 	diff_opts.detect_rename = DIFF_DETECT_RENAME;
 	diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
 	diff_opts.single_follow = origin->path;
-	paths[0] = NULL;
-	init_pathspec(&diff_opts.pathspec, paths);
 	diff_setup_done(&diff_opts);
 
 	if (is_null_sha1(origin->commit->object.sha1))
@@ -1064,7 +1061,6 @@ static int find_copy_in_parent(struct scoreboard *sb,
 			       int opt)
 {
 	struct diff_options diff_opts;
-	const char *paths[1];
 	int i, j;
 	int retval;
 	struct blame_list *blame_list;
@@ -1078,8 +1074,6 @@ static int find_copy_in_parent(struct scoreboard *sb,
 	DIFF_OPT_SET(&diff_opts, RECURSIVE);
 	diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
 
-	paths[0] = NULL;
-	init_pathspec(&diff_opts.pathspec, paths);
 	diff_setup_done(&diff_opts);
 
 	/* Try "find copies harder" on new path if requested;

builtin/log.c

@@ -503,7 +503,7 @@ int cmd_show(int argc, const char **argv, const char *prefix)
 	init_grep_defaults();
 	git_config(git_log_config, NULL);
 
-	init_pathspec(&match_all, NULL);
+	memset(&match_all, 0, sizeof(match_all));
 	init_revisions(&rev, prefix);
 	rev.diff = 1;
 	rev.always_show_header = 1;

builtin/ls-files.c

@@ -315,13 +315,12 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix)
 	}
 
 	if (prefix) {
-		static const char *(matchbuf[2]);
-		matchbuf[0] = prefix;
-		matchbuf[1] = NULL;
-		init_pathspec(&pathspec, matchbuf);
-		pathspec.items[0].nowildcard_len = pathspec.items[0].len;
+		static const char *(matchbuf[1]);
+		matchbuf[0] = NULL;
+		parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC,
+			       PATHSPEC_PREFER_CWD, prefix, matchbuf);
 	} else
-		init_pathspec(&pathspec, NULL);
+		memset(&pathspec, 0, sizeof(pathspec));
 	if (read_tree(tree, 1, &pathspec))
 		die("unable to read tree entries %s", tree_name);
 

diff-lib.c

@@ -501,7 +501,7 @@ int do_diff_cache(const unsigned char *tree_sha1, struct diff_options *opt)
 	struct rev_info revs;
 
 	init_revisions(&revs, NULL);
-	init_pathspec(&revs.prune_data, opt->pathspec.raw);
+	copy_pathspec(&revs.prune_data, &opt->pathspec);
 	revs.diffopt = *opt;
 
 	if (diff_cache(&revs, tree_sha1, NULL, 1))

dir.c

@@ -1580,64 +1580,6 @@ int remove_path(const char *name)
 	return 0;
 }
 
-static int pathspec_item_cmp(const void *a_, const void *b_)
-{
-	struct pathspec_item *a, *b;
-
-	a = (struct pathspec_item *)a_;
-	b = (struct pathspec_item *)b_;
-	return strcmp(a->match, b->match);
-}
-
-int init_pathspec(struct pathspec *pathspec, const char **paths)
-{
-	const char **p = paths;
-	int i;
-
-	memset(pathspec, 0, sizeof(*pathspec));
-	if (!p)
-		return 0;
-	while (*p)
-		p++;
-	pathspec->raw = paths;
-	pathspec->nr = p - paths;
-	if (!pathspec->nr)
-		return 0;
-
-	pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
-	for (i = 0; i < pathspec->nr; i++) {
-		struct pathspec_item *item = pathspec->items+i;
-		const char *path = paths[i];
-
-		item->match = path;
-		item->original = path;
-		item->len = strlen(path);
-		item->flags = 0;
-		if (limit_pathspec_to_literal()) {
-			item->nowildcard_len = item->len;
-		} else {
-			item->nowildcard_len = simple_length(path);
-			if (item->nowildcard_len < item->len) {
-				pathspec->has_wildcard = 1;
-				if (path[item->nowildcard_len] == '*' &&
-				    no_wildcard(path + item->nowildcard_len + 1))
-					item->flags |= PATHSPEC_ONESTAR;
-			}
-		}
-	}
-
-	qsort(pathspec->items, pathspec->nr,
-	      sizeof(struct pathspec_item), pathspec_item_cmp);
-
-	return 0;
-}
-
-void free_pathspec(struct pathspec *pathspec)
-{
-	free(pathspec->items);
-	pathspec->items = NULL;
-}
-
 int limit_pathspec_to_literal(void)
 {
 	static int flag = -1;

merge-recursive.c

@@ -297,7 +297,7 @@ static int get_files_dirs(struct merge_options *o, struct tree *tree)
 {
 	int n;
 	struct pathspec match_all;
-	init_pathspec(&match_all, NULL);
+	memset(&match_all, 0, sizeof(match_all));
 	if (read_tree_recursive(tree, "", 0, 0, &match_all, save_files_dirs, o))
 		return 0;
 	n = o->current_file_set.nr + o->current_directory_set.nr;

pathspec.c

@@ -372,3 +372,9 @@ void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
 	memcpy(dst->items, src->items,
 	       sizeof(struct pathspec_item) * dst->nr);
 }
+
+void free_pathspec(struct pathspec *pathspec)
+{
+	free(pathspec->items);
+	pathspec->items = NULL;
+}

pathspec.h

@@ -53,7 +53,6 @@ struct pathspec {
 #define PATHSPEC_PREFIX_ORIGIN (1<<6)
 #define PATHSPEC_KEEP_ORDER (1<<7)
 
-extern int init_pathspec(struct pathspec *, const char **);
 extern void parse_pathspec(struct pathspec *pathspec,
 			   unsigned magic_mask,
 			   unsigned flags,

revision.c

@@ -1372,7 +1372,7 @@ static void prepare_show_merge(struct rev_info *revs)
 			i++;
 	}
 	free_pathspec(&revs->prune_data);
-	init_pathspec(&revs->prune_data, prune);
+	parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC, 0, "", prune);
 	revs->limited = 1;
 }
 

tree-diff.c

@@ -195,7 +195,6 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 	struct diff_options diff_opts;
 	struct diff_queue_struct *q = &diff_queued_diff;
 	struct diff_filepair *choice;
-	const char *paths[1];
 	int i;
 
 	/*
@@ -228,8 +227,6 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 	diff_opts.single_follow = opt->pathspec.raw[0];
 	diff_opts.break_opt = opt->break_opt;
 	diff_opts.rename_score = opt->rename_score;
-	paths[0] = NULL;
-	init_pathspec(&diff_opts.pathspec, paths);
 	diff_setup_done(&diff_opts);
 	diff_tree(t1, t2, base, &diff_opts);
 	diffcore_std(&diff_opts);
@@ -247,14 +244,17 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 		 */
 		if ((p->status == 'R' || p->status == 'C') &&
 		    !strcmp(p->two->path, opt->pathspec.raw[0])) {
+			const char *path[2];
+
 			/* Switch the file-pairs around */
 			q->queue[i] = choice;
 			choice = p;
 
 			/* Update the path we use from now on.. */
+			path[0] = p->one->path;
+			path[1] = NULL;
 			free_pathspec(&opt->pathspec);
-			opt->pathspec.raw[0] = xstrdup(p->one->path);
-			init_pathspec(&opt->pathspec, opt->pathspec.raw);
+			parse_pathspec(&opt->pathspec, PATHSPEC_ALL_MAGIC, 0, "", path);
 
 			/*
 			 * The caller expects us to return a set of vanilla