[PATCH v2 10/21] ls-files: convert to use parse_pathspec

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

strip_trailing_slash_from_submodules() modifies pathspec and is moved
to dir.c, close to other pathspec code. It'll be removed later when
parse_pathspec() learns to take over its job.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/ls-files.c | 42 +++++++++++-------------------------------
 cache.h            |  1 +
 dir.c              | 20 ++++++++++++++++++++
 3 files changed, 32 insertions(+), 31 deletions(-)

diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 4a9ee69..9336abd 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -30,7 +30,7 @@ static int debug_mode;
 static const char *prefix;
 static int max_prefix_len;
 static int prefix_len;
-static const char **pathspec;
+static struct pathspec pathspec;
 static int error_unmatch;
 static char *ps_matched;
 static const char *with_tree;
@@ -58,7 +58,7 @@ static void show_dir_entry(const char *tag, struct dir_entry *ent)
 	if (len >= ent->len)
 		die("git ls-files: internal error - directory entry not superset of prefix");
 
-	if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched))
+	if (!match_pathspec_depth(&pathspec, ent->name, ent->len, len, ps_matched))
 		return;
 
 	fputs(tag, stdout);
@@ -133,7 +133,7 @@ static void show_ce_entry(const char *tag, struct cache_entry *ce)
 	if (len >= ce_namelen(ce))
 		die("git ls-files: internal error - cache entry not superset of prefix");
 
-	if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched))
+	if (!match_pathspec_depth(&pathspec, ce->name, ce_namelen(ce), len, ps_matched))
 		return;
 
 	if (tag && *tag && show_valid_bit &&
@@ -187,7 +187,7 @@ static void show_ru_info(void)
 		len = strlen(path);
 		if (len < max_prefix_len)
 			continue; /* outside of the prefix */
-		if (!match_pathspec(pathspec, path, len, max_prefix_len, ps_matched))
+		if (!match_pathspec_depth(&pathspec, path, len, max_prefix_len, ps_matched))
 			continue; /* uninterested */
 		for (i = 0; i < 3; i++) {
 			if (!ui->mode[i])
@@ -216,7 +216,7 @@ static void show_files(struct dir_struct *dir)
 
 	/* For cached/deleted files we don't need to even do the readdir */
 	if (show_others || show_killed) {
-		fill_directory(dir, pathspec);
+		fill_directory(dir, pathspec.raw);
 		if (show_others)
 			show_other_files(dir);
 		if (show_killed)
@@ -287,21 +287,6 @@ static void prune_cache(const char *prefix)
 	active_nr = last;
 }
 
-static void strip_trailing_slash_from_submodules(void)
-{
-	const char **p;
-
-	for (p = pathspec; *p != NULL; p++) {
-		int len = strlen(*p), pos;
-
-		if (len < 1 || (*p)[len - 1] != '/')
-			continue;
-		pos = cache_name_pos(*p, len - 1);
-		if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode))
-			*p = xstrndup(*p, len - 1);
-	}
-}
-
 /*
  * Read the tree specified with --with-tree option
  * (typically, HEAD) into stage #1 and then
@@ -549,23 +534,18 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 	if (require_work_tree && !is_inside_work_tree())
 		setup_work_tree();
 
-	pathspec = get_pathspec(prefix, argv);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
 
 	/* be nice with submodule paths ending in a slash */
-	if (pathspec)
-		strip_trailing_slash_from_submodules();
+	strip_trailing_slash_from_submodules(&pathspec);
 
 	/* Find common prefix for all pathspec's */
-	max_prefix = common_prefix(pathspec);
+	max_prefix = common_prefix(pathspec.raw);
 	max_prefix_len = max_prefix ? strlen(max_prefix) : 0;
 
 	/* Treat unmatching pathspec elements as errors */
-	if (pathspec && error_unmatch) {
-		int num;
-		for (num = 0; pathspec[num]; num++)
-			;
-		ps_matched = xcalloc(1, num);
-	}
+	if (pathspec.nr && error_unmatch)
+		ps_matched = xcalloc(1, pathspec.nr);
 
 	if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
 		die("ls-files --ignored needs some exclude pattern");
@@ -592,7 +572,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 
 	if (ps_matched) {
 		int bad;
-		bad = report_path_error(ps_matched, pathspec, prefix);
+		bad = report_path_error(ps_matched, pathspec.raw, prefix);
 		if (bad)
 			fprintf(stderr, "Did you forget to 'git add'?\n");
 
diff --git a/cache.h b/cache.h
index a3c316f..62eefb1 100644
--- a/cache.h
+++ b/cache.h
@@ -496,6 +496,7 @@ extern int init_pathspec(struct pathspec *, const char **);
 extern void parse_pathspec(struct pathspec *pathspec, unsigned magic,
 			   unsigned flags, const char *prefix,
 			   const char **args);
+void strip_trailing_slash_from_submodules(struct pathspec *pathspec);
 extern void free_pathspec(struct pathspec *);
 extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
 
diff --git a/dir.c b/dir.c
index 31f0995..4be3ca1 100644
--- a/dir.c
+++ b/dir.c
@@ -1440,6 +1440,26 @@ int init_pathspec(struct pathspec *pathspec, const char **paths)
 	return 0;
 }
 
+void strip_trailing_slash_from_submodules(struct pathspec *pathspec)
+{
+	int i;
+	for (i = 0; i < pathspec->nr; i++) {
+		const char *p = pathspec->raw[i];
+		int len = strlen(p), pos;
+
+		if (len < 1 || p[len - 1] != '/')
+			continue;
+		pos = cache_name_pos(p, len - 1);
+		if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode)) {
+			char *path = xstrndup(p, len - 1);
+			pathspec->raw[i] = path;
+			pathspec->items[i].match = path;
+			pathspec->items[i].len = len - 1;
+			pathspec->items[i].nowildcard_len = simple_length(path);
+		}
+	}
+}
+
 void free_pathspec(struct pathspec *pathspec)
 {
 	free(pathspec->items);
-- 
1.8.0.rc2.23.g1fb49df