[PATCH v2 00/21] nd/parse-pathspec reroll

[PATCH v2 00/21] nd/parse-pathspec reroll

[Nguyễn Thái Ngọc Duy]

Changes:

- The incorrect patch 'pathspec: make sure the prefix part is
  wildcard-clean' is removed. I want to keep this series simple.
  Complex pathspec manipulation will have its own series later.

- Fix t7400.38 failure when core.ignorecase is on. We should exercise
  core.ignorecase codepath more in the test suite, but that should be
  in a separate series.

- parse_pathspec() learns PATHSPEC_EMPTY_MATCH_ALL flag to support
  "no pathspec means match everything", which is used by some commands
  like commit/status

- rename 'raw' to '_raw' to catch new access sites

I also checked if we still have similar faults to t7400.38 (modifying
pathspec directly leading to inconsistencies) and I think we're safe.

Nguyễn Thái Ngọc Duy (21):
  pathspec: save the non-wildcard length part
  Add parse_pathspec() that converts cmdline args to struct pathspec
  Export parse_pathspec() and convert some get_pathspec() calls
  clean: convert to use parse_pathspec
  commit: convert to use parse_pathspec
  status: convert to use parse_pathspec
  rerere: convert to use parse_pathspec
  checkout: convert to use parse_pathspec
  rm: convert to use parse_pathspec
  ls-files: convert to use parse_pathspec
  archive: convert to use parse_pathspec
  add: convert to use parse_pathspec
  Convert read_cache_preload() to take struct pathspec
  Convert unmerge_cache to take struct pathspec
  checkout: convert read_tree_some to take struct pathspec
  Convert report_path_error to take struct pathspec
  Convert refresh_index to take struct pathspec
  Convert {read,fill}_directory to take struct pathspec
  Convert add_files_to_cache to take struct pathspec
  Convert more init_pathspec() to parse_pathspec()
  Rename field "raw" to "_raw" in struct pathspec

 archive.c              |  12 +++---
 archive.h              |   2 +-
 builtin/add.c          | 102 ++++++++++++++++++-------------------------------
 builtin/checkout.c     |  37 ++++++++----------
 builtin/clean.c        |  20 +++++-----
 builtin/commit.c       |  39 +++++++++----------
 builtin/diff-files.c   |   2 +-
 builtin/diff-index.c   |   2 +-
 builtin/diff.c         |   4 +-
 builtin/grep.c         |   6 +--
 builtin/log.c          |   2 +-
 builtin/ls-files.c     |  64 +++++++++++--------------------
 builtin/ls-tree.c      |   6 +--
 builtin/rerere.c       |   6 +--
 builtin/rm.c           |  16 ++++----
 builtin/update-index.c |   3 +-
 cache.h                |  25 +++++++++---
 diff-lib.c             |   2 +-
 dir.c                  |  72 +++++++++++++++++++++++++++++-----
 dir.h                  |   5 ++-
 merge-recursive.c      |   2 +-
 preload-index.c        |  20 +++++-----
 read-cache.c           |   5 ++-
 rerere.c               |   6 +--
 rerere.h               |   4 +-
 resolve-undo.c         |   4 +-
 resolve-undo.h         |   2 +-
 revision.c             |   8 ++--
 setup.c                | 102 +++++++++++++++++++++++++++++++++++++------------
 tree-diff.c            |   8 ++--
 tree-walk.c            |   4 +-
 tree.c                 |   4 +-
 tree.h                 |   2 +-
 wt-status.c            |  17 ++++-----
 wt-status.h            |   2 +-
 35 files changed, 339 insertions(+), 278 deletions(-)

-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 01/21] pathspec: save the non-wildcard length part

[Nguyễn Thái Ngọc Duy]

We mark pathspec with wildcards with the field use_wildcard. We
could do better by saving the length of the non-wildcard part, which
can be used for optimizations such as f9f6e2c (exclude: do strcmp as
much as possible before fnmatch - 2012-06-07).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/ls-files.c | 2 +-
 builtin/ls-tree.c  | 2 +-
 cache.h            | 2 +-
 dir.c              | 6 +++---
 tree-walk.c        | 4 ++--
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index b5434af..4a9ee69 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -337,7 +337,7 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix)
 		matchbuf[0] = prefix;
 		matchbuf[1] = NULL;
 		init_pathspec(&pathspec, matchbuf);
-		pathspec.items[0].use_wildcard = 0;
+		pathspec.items[0].nowildcard_len = pathspec.items[0].len;
 	} else
 		init_pathspec(&pathspec, NULL);
 	if (read_tree(tree, 1, &pathspec))
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index 235c17c..fb76e38 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -168,7 +168,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 
 	init_pathspec(&pathspec, get_pathspec(prefix, argv + 1));
 	for (i = 0; i < pathspec.nr; i++)
-		pathspec.items[i].use_wildcard = 0;
+		pathspec.items[i].nowildcard_len = pathspec.items[i].len;
 	pathspec.has_wildcard = 0;
 	tree = parse_tree_indirect(sha1);
 	if (!tree)
diff --git a/cache.h b/cache.h
index 2b192d2..9304d91 100644
--- a/cache.h
+++ b/cache.h
@@ -482,7 +482,7 @@ struct pathspec {
 	struct pathspec_item {
 		const char *match;
 		int len;
-		unsigned int use_wildcard:1;
+		int nowildcard_len;
 	} *items;
 };
 
diff --git a/dir.c b/dir.c
index 5a83aa7..c391d46 100644
--- a/dir.c
+++ b/dir.c
@@ -230,7 +230,7 @@ static int match_pathspec_item(const struct pathspec_item *item, int prefix,
 			return MATCHED_RECURSIVELY;
 	}
 
-	if (item->use_wildcard && !fnmatch(match, name, 0))
+	if (item->nowildcard_len < item->len && !fnmatch(match, name, 0))
 		return MATCHED_FNMATCH;
 
 	return 0;
@@ -1429,8 +1429,8 @@ int init_pathspec(struct pathspec *pathspec, const char **paths)
 
 		item->match = path;
 		item->len = strlen(path);
-		item->use_wildcard = !no_wildcard(path);
-		if (item->use_wildcard)
+		item->nowildcard_len = simple_length(path);
+		if (item->nowildcard_len < item->len)
 			pathspec->has_wildcard = 1;
 	}
 
diff --git a/tree-walk.c b/tree-walk.c
index 3f54c02..af871c5 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -626,7 +626,7 @@ enum interesting tree_entry_interesting(const struct name_entry *entry,
 					&never_interesting))
 				return entry_interesting;
 
-			if (item->use_wildcard) {
+			if (item->nowildcard_len < item->len) {
 				if (!fnmatch(match + baselen, entry->path, 0))
 					return entry_interesting;
 
@@ -642,7 +642,7 @@ enum interesting tree_entry_interesting(const struct name_entry *entry,
 		}
 
 match_wildcards:
-		if (!item->use_wildcard)
+		if (item->nowildcard_len == item->len)
 			continue;
 
 		/*
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 02/21] Add parse_pathspec() that converts cmdline args to struct pathspec

[Nguyễn Thái Ngọc Duy]

Currently to fill a struct pathspec, we do:

   const char **paths;
   paths = get_pathspec(prefix, argv);
   ...
   init_pathspec(&pathspec, paths);

"paths" can only carry bare strings, which loses information from
command line arguments such as pathspec magic or the prefix part's
length for each argument.

parse_pathspec() is introduced to combine the two calls into one. The
plan is gradually replace all get_pathspec() and init_pathspec() with
parse_pathspec(). get_pathspec() now becomes a thin wrapper of
parse_pathspec().

parse_pathspec() allows the caller to reject the pathspec magics that
it does not support. When a new pathspec magic is introduced, we can
enable it per command after making sure that all underlying code has no
problem with the new magic.

"flags" parameter is currently unused. But it would allow callers to
pass certain instructions to parse_pathspec, for example forcing
literal pathspec when no magic is used.

With the introduction of parse_pathspec, there are now two functions
that can initialize struct pathspec: init_pathspec and
parse_pathspec. Any semantic changes in struct pathspec must be
reflected in both functions. init_pathspec() will be phased out in
favor of parse_pathspec().

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 dir.c   |  2 +-
 dir.h   |  1 +
 setup.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++----------------
 3 files changed, 77 insertions(+), 25 deletions(-)

diff --git a/dir.c b/dir.c
index c391d46..31f0995 100644
--- a/dir.c
+++ b/dir.c
@@ -291,7 +291,7 @@ int match_pathspec_depth(const struct pathspec *ps,
 /*
  * Return the length of the "simple" part of a path match limiter.
  */
-static int simple_length(const char *match)
+int simple_length(const char *match)
 {
 	int len = -1;
 
diff --git a/dir.h b/dir.h
index f5c89e3..1d4888b 100644
--- a/dir.h
+++ b/dir.h
@@ -66,6 +66,7 @@ struct dir_struct {
 #define MATCHED_RECURSIVELY 1
 #define MATCHED_FNMATCH 2
 #define MATCHED_EXACTLY 3
+extern int simple_length(const char *match);
 extern char *common_prefix(const char **pathspec);
 extern int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen);
 extern int match_pathspec_depth(const struct pathspec *pathspec,
diff --git a/setup.c b/setup.c
index f108c4b..4fcdae6 100644
--- a/setup.c
+++ b/setup.c
@@ -174,7 +174,7 @@ static struct pathspec_magic {
 
 /*
  * Take an element of a pathspec and check for magic signatures.
- * Append the result to the prefix.
+ * Append the result to the prefix. Return the magic bitmap.
  *
  * For now, we only parse the syntax and throw out anything other than
  * "top" magic.
@@ -185,7 +185,10 @@ static struct pathspec_magic {
  * the prefix part must always match literally, and a single stupid
  * string cannot express such a case.
  */
-static const char *prefix_pathspec(const char *prefix, int prefixlen, const char *elt)
+static unsigned prefix_pathspec(struct pathspec_item *item,
+				const char **raw,
+				const char *prefix, int prefixlen,
+				const char *elt)
 {
 	unsigned magic = 0;
 	const char *copyfrom = elt;
@@ -241,39 +244,87 @@ static const char *prefix_pathspec(const char *prefix, int prefixlen, const char
 	}
 
 	if (magic & PATHSPEC_FROMTOP)
-		return xstrdup(copyfrom);
+		item->match = xstrdup(copyfrom);
 	else
-		return prefix_path(prefix, prefixlen, copyfrom);
+		item->match = prefix_path(prefix, prefixlen, copyfrom);
+	*raw = item->match;
+	item->len = strlen(item->match);
+	item->nowildcard_len = simple_length(item->match);
+	return magic;
 }
 
-const char **get_pathspec(const char *prefix, const char **pathspec)
+static int pathspec_item_cmp(const void *a_, const void *b_)
 {
-	const char *entry = *pathspec;
-	const char **src, **dst;
-	int prefixlen;
+	struct pathspec_item *a, *b;
 
-	if (!prefix && !entry)
-		return NULL;
+	a = (struct pathspec_item *)a_;
+	b = (struct pathspec_item *)b_;
+	return strcmp(a->match, b->match);
+}
+
+/*
+ * Given command line arguments and a prefix, convert the input to
+ * pathspec. die() if any magic other than ones in magic_mask.
+ */
+static void parse_pathspec(struct pathspec *pathspec,
+			   unsigned magic_mask, unsigned flags,
+			   const char *prefix, const char **argv)
+{
+	struct pathspec_item *item;
+	const char *entry = *argv;
+	int i, n, prefixlen;
+
+	memset(pathspec, 0, sizeof(*pathspec));
+
+	/* No arguments, no prefix -> no pathspec */
+	if (!entry && !prefix)
+		return;
 
+	/* No arguments with prefix -> prefix pathspec */
 	if (!entry) {
-		static const char *spec[2];
-		spec[0] = prefix;
-		spec[1] = NULL;
-		return spec;
+		static const char *raw[2];
+
+		pathspec->items = item = xmalloc(sizeof(*item));
+		item->match = prefix;
+		item->nowildcard_len = item->len = strlen(prefix);
+		raw[0] = prefix;
+		raw[1] = NULL;
+		pathspec->nr = 1;
+		pathspec->raw = raw;
+		return;
 	}
 
-	/* Otherwise we have to re-write the entries.. */
-	src = pathspec;
-	dst = pathspec;
+	n = 0;
+	while (argv[n])
+		n++;
+
+	pathspec->nr = n;
+	pathspec->items = item = xmalloc(sizeof(*item) * n);
+	pathspec->raw = argv;
 	prefixlen = prefix ? strlen(prefix) : 0;
-	while (*src) {
-		*(dst++) = prefix_pathspec(prefix, prefixlen, *src);
-		src++;
+
+	for (i = 0; i < n; i++) {
+		unsigned applied_magic;
+		const char *arg = argv[i];
+
+		applied_magic = prefix_pathspec(item + i, argv + i,
+						prefix, prefixlen, arg);
+		if (applied_magic & ~magic_mask)
+			die(_("pathspec magic in '%s' is not supported"
+			      " by this command"), arg);
+		if (item[i].nowildcard_len < item[i].len)
+			pathspec->has_wildcard = 1;
 	}
-	*dst = NULL;
-	if (!*pathspec)
-		return NULL;
-	return pathspec;
+
+	qsort(pathspec->items, pathspec->nr,
+	      sizeof(struct pathspec_item), pathspec_item_cmp);
+}
+
+const char **get_pathspec(const char *prefix, const char **pathspec)
+{
+	struct pathspec ps;
+	parse_pathspec(&ps, PATHSPEC_FROMTOP, 0, prefix, pathspec);
+	return ps.raw;
 }
 
 /*
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 03/21] Export parse_pathspec() and convert some get_pathspec() calls

[Nguyễn Thái Ngọc Duy]

These call sites follow the pattern:

   paths = get_pathspec(prefix, argv);
   init_pathspec(&pathspec, paths);

which can be converted into a single parse_pathspec() call.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/grep.c         | 4 +---
 builtin/ls-tree.c      | 2 +-
 builtin/update-index.c | 3 +--
 cache.h                | 6 ++++++
 revision.c             | 4 ++--
 setup.c                | 6 +++---
 6 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/builtin/grep.c b/builtin/grep.c
index 0e1b6c8..705f9ff 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -630,7 +630,6 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	const char *show_in_pager = NULL, *default_pager = "dummy";
 	struct grep_opt opt;
 	struct object_array list = OBJECT_ARRAY_INIT;
-	const char **paths = NULL;
 	struct pathspec pathspec;
 	struct string_list path_list = STRING_LIST_INIT_NODUP;
 	int i;
@@ -857,8 +856,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 			verify_filename(prefix, argv[j], j == i);
 	}
 
-	paths = get_pathspec(prefix, argv + i);
-	init_pathspec(&pathspec, paths);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv + i);
 	pathspec.max_depth = opt.max_depth;
 	pathspec.recursive = 1;
 
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index fb76e38..a78ba53 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -166,7 +166,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 	if (get_sha1(argv[0], sha1))
 		die("Not a valid object name %s", argv[0]);
 
-	init_pathspec(&pathspec, get_pathspec(prefix, argv + 1));
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv + 1);
 	for (i = 0; i < pathspec.nr; i++)
 		pathspec.items[i].nowildcard_len = pathspec.items[i].len;
 	pathspec.has_wildcard = 0;
diff --git a/builtin/update-index.c b/builtin/update-index.c
index ada1dff..6728e59 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -546,10 +546,9 @@ static int do_reupdate(int ac, const char **av,
 	 */
 	int pos;
 	int has_head = 1;
-	const char **paths = get_pathspec(prefix, av + 1);
 	struct pathspec pathspec;
 
-	init_pathspec(&pathspec, paths);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, av + 1);
 
 	if (read_ref("HEAD", head_sha1))
 		/* If there is no HEAD, that means it is an initial
diff --git a/cache.h b/cache.h
index 9304d91..e52365d 100644
--- a/cache.h
+++ b/cache.h
@@ -473,6 +473,9 @@ extern int index_name_is_other(const struct index_state *, const char *, int);
 extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
 extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
 
+/* Pathspec magic */
+#define PATHSPEC_FROMTOP    (1<<0)
+
 struct pathspec {
 	const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
 	int nr;
@@ -487,6 +490,9 @@ struct pathspec {
 };
 
 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);
 extern void free_pathspec(struct pathspec *);
 extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
 
diff --git a/revision.c b/revision.c
index 95d21e6..a044242 100644
--- a/revision.c
+++ b/revision.c
@@ -1851,8 +1851,8 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
 		 */
 		ALLOC_GROW(prune_data.path, prune_data.nr+1, prune_data.alloc);
 		prune_data.path[prune_data.nr++] = NULL;
-		init_pathspec(&revs->prune_data,
-			      get_pathspec(revs->prefix, prune_data.path));
+		parse_pathspec(&revs->prune_data, PATHSPEC_FROMTOP, 0,
+			       revs->prefix, prune_data.path);
 	}
 
 	if (revs->def == NULL)
diff --git a/setup.c b/setup.c
index 4fcdae6..6e960b9 100644
--- a/setup.c
+++ b/setup.c
@@ -266,9 +266,9 @@ static int pathspec_item_cmp(const void *a_, const void *b_)
  * Given command line arguments and a prefix, convert the input to
  * pathspec. die() if any magic other than ones in magic_mask.
  */
-static void parse_pathspec(struct pathspec *pathspec,
-			   unsigned magic_mask, unsigned flags,
-			   const char *prefix, const char **argv)
+void parse_pathspec(struct pathspec *pathspec,
+		    unsigned magic_mask, unsigned flags,
+		    const char *prefix, const char **argv)
 {
 	struct pathspec_item *item;
 	const char *entry = *argv;
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 04/21] clean: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/clean.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/builtin/clean.c b/builtin/clean.c
index 69c1cda..788ad8c 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -42,7 +42,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 	int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
 	struct strbuf directory = STRBUF_INIT;
 	struct dir_struct dir;
-	static const char **pathspec;
+	struct pathspec pathspec;
 	struct strbuf buf = STRBUF_INIT;
 	struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 	const char *qname;
@@ -101,12 +101,12 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 		add_exclude(exclude_list.items[i].string, "", 0,
 			    &dir.exclude_list[EXC_CMDL]);
 
-	pathspec = get_pathspec(prefix, argv);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
 
-	fill_directory(&dir, pathspec);
+	fill_directory(&dir, pathspec.raw);
 
-	if (pathspec)
-		seen = xmalloc(argc > 0 ? argc : 1);
+	if (pathspec.nr)
+		seen = xmalloc(pathspec.nr);
 
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
@@ -141,10 +141,10 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 		if (lstat(ent->name, &st))
 			continue;
 
-		if (pathspec) {
-			memset(seen, 0, argc > 0 ? argc : 1);
-			matches = match_pathspec(pathspec, ent->name, len,
-						 0, seen);
+		if (pathspec.nr) {
+			memset(seen, 0, pathspec.nr);
+			matches = match_pathspec_depth(&pathspec, ent->name, len,
+						       0, seen);
 		}
 
 		if (S_ISDIR(st.st_mode)) {
@@ -169,7 +169,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 			}
 			strbuf_reset(&directory);
 		} else {
-			if (pathspec && !matches)
+			if (pathspec.nr && !matches)
 				continue;
 			qname = quote_path_relative(ent->name, -1, &buf, prefix);
 			if (show_only) {
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 05/21] commit: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/commit.c | 18 +++++++++---------
 cache.h          |  3 +++
 setup.c          |  3 +++
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index d6dd3df..444ae1d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -277,17 +277,17 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 {
 	int fd;
 	struct string_list partial;
-	const char **pathspec = NULL;
+	struct pathspec pathspec;
 	char *old_index_env = NULL;
 	int refresh_flags = REFRESH_QUIET;
 
 	if (is_status)
 		refresh_flags |= REFRESH_UNMERGED;
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP,
+		       PATHSPEC_EMPTY_MATCH_ALL,
+		       prefix, argv);
 
-	if (*argv)
-		pathspec = get_pathspec(prefix, argv);
-
-	if (read_cache_preload(pathspec) < 0)
+	if (read_cache_preload(pathspec.raw) < 0)
 		die(_("index file corrupt"));
 
 	if (interactive) {
@@ -329,9 +329,9 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 	 * (A) if all goes well, commit the real index;
 	 * (B) on failure, rollback the real index.
 	 */
-	if (all || (also && pathspec && *pathspec)) {
+	if (all || (also && pathspec.nr)) {
 		fd = hold_locked_index(&index_lock, 1);
-		add_files_to_cache(also ? prefix : NULL, pathspec, 0);
+		add_files_to_cache(also ? prefix : NULL, pathspec.raw, 0);
 		refresh_cache_or_die(refresh_flags);
 		update_main_cache_tree(WRITE_TREE_SILENT);
 		if (write_cache(fd, active_cache, active_nr) ||
@@ -350,7 +350,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 	 * and create commit from the_index.
 	 * We still need to refresh the index here.
 	 */
-	if (!only && (!pathspec || !*pathspec)) {
+	if (!only && !pathspec.nr) {
 		fd = hold_locked_index(&index_lock, 1);
 		refresh_cache_or_die(refresh_flags);
 		if (active_cache_changed) {
@@ -395,7 +395,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 
 	memset(&partial, 0, sizeof(partial));
 	partial.strdup_strings = 1;
-	if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, pathspec))
+	if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, pathspec.raw))
 		exit(1);
 
 	discard_cache();
diff --git a/cache.h b/cache.h
index e52365d..a3c316f 100644
--- a/cache.h
+++ b/cache.h
@@ -476,6 +476,9 @@ extern int ie_modified(const struct index_state *, struct cache_entry *, struct
 /* Pathspec magic */
 #define PATHSPEC_FROMTOP    (1<<0)
 
+/* Pathspec flags */
+#define PATHSPEC_EMPTY_MATCH_ALL (1<<0) /* No args means match everything */
+
 struct pathspec {
 	const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
 	int nr;
diff --git a/setup.c b/setup.c
index 6e960b9..a26b6c0 100644
--- a/setup.c
+++ b/setup.c
@@ -280,6 +280,9 @@ void parse_pathspec(struct pathspec *pathspec,
 	if (!entry && !prefix)
 		return;
 
+	if (!*argv && (flags & PATHSPEC_EMPTY_MATCH_ALL))
+		return;
+
 	/* No arguments with prefix -> prefix pathspec */
 	if (!entry) {
 		static const char *raw[2];
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 06/21] status: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/commit.c |  9 +++++----
 wt-status.c      | 17 +++++++----------
 wt-status.h      |  2 +-
 3 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 444ae1d..196dfab 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1205,11 +1205,12 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 	handle_untracked_files_arg(&s);
 	if (show_ignored_in_status)
 		s.show_ignored_files = 1;
-	if (*argv)
-		s.pathspec = get_pathspec(prefix, argv);
+	parse_pathspec(&s.pathspec, PATHSPEC_FROMTOP,
+		       PATHSPEC_EMPTY_MATCH_ALL,
+		       prefix, argv);
 
-	read_cache_preload(s.pathspec);
-	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec, NULL, NULL);
+	read_cache_preload(s.pathspec.raw);
+	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec.raw, NULL, NULL);
 
 	fd = hold_locked_index(&index_lock, 0);
 	if (0 <= fd)
diff --git a/wt-status.c b/wt-status.c
index 2a9658b..13e6aba 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -434,7 +434,7 @@ static void wt_status_collect_changes_worktree(struct wt_status *s)
 	}
 	rev.diffopt.format_callback = wt_status_collect_changed_cb;
 	rev.diffopt.format_callback_data = s;
-	init_pathspec(&rev.prune_data, s->pathspec);
+	rev.prune_data = s->pathspec;
 	run_diff_files(&rev, 0);
 }
 
@@ -459,22 +459,20 @@ static void wt_status_collect_changes_index(struct wt_status *s)
 	rev.diffopt.detect_rename = 1;
 	rev.diffopt.rename_limit = 200;
 	rev.diffopt.break_opt = 0;
-	init_pathspec(&rev.prune_data, s->pathspec);
+	rev.prune_data = s->pathspec;
 	run_diff_index(&rev, 1);
 }
 
 static void wt_status_collect_changes_initial(struct wt_status *s)
 {
-	struct pathspec pathspec;
 	int i;
 
-	init_pathspec(&pathspec, s->pathspec);
 	for (i = 0; i < active_nr; i++) {
 		struct string_list_item *it;
 		struct wt_status_change_data *d;
 		struct cache_entry *ce = active_cache[i];
 
-		if (!ce_path_match(ce, &pathspec))
+		if (!ce_path_match(ce, &s->pathspec))
 			continue;
 		it = string_list_insert(&s->change, ce->name);
 		d = it->util;
@@ -489,7 +487,6 @@ static void wt_status_collect_changes_initial(struct wt_status *s)
 		else
 			d->index_status = DIFF_STATUS_ADDED;
 	}
-	free_pathspec(&pathspec);
 }
 
 static void wt_status_collect_untracked(struct wt_status *s)
@@ -505,11 +502,11 @@ static void wt_status_collect_untracked(struct wt_status *s)
 			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 	setup_standard_excludes(&dir);
 
-	fill_directory(&dir, s->pathspec);
+	fill_directory(&dir, s->pathspec.raw);
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
 		if (cache_name_is_other(ent->name, ent->len) &&
-		    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
+		    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 			string_list_insert(&s->untracked, ent->name);
 		free(ent);
 	}
@@ -517,11 +514,11 @@ static void wt_status_collect_untracked(struct wt_status *s)
 	if (s->show_ignored_files) {
 		dir.nr = 0;
 		dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
-		fill_directory(&dir, s->pathspec);
+		fill_directory(&dir, s->pathspec.raw);
 		for (i = 0; i < dir.nr; i++) {
 			struct dir_entry *ent = dir.entries[i];
 			if (cache_name_is_other(ent->name, ent->len) &&
-			    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
+			    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 				string_list_insert(&s->ignored, ent->name);
 			free(ent);
 		}
diff --git a/wt-status.h b/wt-status.h
index 236b41f..dd8df41 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -44,7 +44,7 @@ struct wt_status {
 	int is_initial;
 	char *branch;
 	const char *reference;
-	const char **pathspec;
+	struct pathspec pathspec;
 	int verbose;
 	int amend;
 	enum commit_whence whence;
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 07/21] rerere: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/rerere.c | 6 +++---
 rerere.c         | 8 ++++----
 rerere.h         | 4 +++-
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/builtin/rerere.c b/builtin/rerere.c
index dc1708e..a573c4a 100644
--- a/builtin/rerere.c
+++ b/builtin/rerere.c
@@ -68,11 +68,11 @@ int cmd_rerere(int argc, const char **argv, const char *prefix)
 		return rerere(flags);
 
 	if (!strcmp(argv[0], "forget")) {
-		const char **pathspec;
+		struct pathspec pathspec;
 		if (argc < 2)
 			warning("'git rerere forget' without paths is deprecated");
-		pathspec = get_pathspec(prefix, argv + 1);
-		return rerere_forget(pathspec);
+		parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv + 1);
+		return rerere_forget(&pathspec);
 	}
 
 	fd = setup_rerere(&merge_rr, flags);
diff --git a/rerere.c b/rerere.c
index a6a5cd5..f8ddf85 100644
--- a/rerere.c
+++ b/rerere.c
@@ -655,7 +655,7 @@ static int rerere_forget_one_path(const char *path, struct string_list *rr)
 	return 0;
 }
 
-int rerere_forget(const char **pathspec)
+int rerere_forget(struct pathspec *pathspec)
 {
 	int i, fd;
 	struct string_list conflict = STRING_LIST_INIT_DUP;
@@ -666,12 +666,12 @@ int rerere_forget(const char **pathspec)
 
 	fd = setup_rerere(&merge_rr, RERERE_NOAUTOUPDATE);
 
-	unmerge_cache(pathspec);
+	unmerge_cache(pathspec->raw);
 	find_conflict(&conflict);
 	for (i = 0; i < conflict.nr; i++) {
 		struct string_list_item *it = &conflict.items[i];
-		if (!match_pathspec(pathspec, it->string, strlen(it->string),
-				    0, NULL))
+		if (!match_pathspec_depth(pathspec, it->string, strlen(it->string),
+					  0, NULL))
 			continue;
 		rerere_forget_one_path(it->string, &merge_rr);
 	}
diff --git a/rerere.h b/rerere.h
index 156d2aa..4aa06c9 100644
--- a/rerere.h
+++ b/rerere.h
@@ -3,6 +3,8 @@
 
 #include "string-list.h"
 
+struct pathspec;
+
 #define RERERE_AUTOUPDATE   01
 #define RERERE_NOAUTOUPDATE 02
 
@@ -16,7 +18,7 @@ extern void *RERERE_RESOLVED;
 extern int setup_rerere(struct string_list *, int);
 extern int rerere(int);
 extern const char *rerere_path(const char *hex, const char *file);
-extern int rerere_forget(const char **);
+extern int rerere_forget(struct pathspec *);
 extern int rerere_remaining(struct string_list *);
 extern void rerere_clear(struct string_list *);
 extern void rerere_gc(struct string_list *);
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 08/21] checkout: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index a9c1b5a..da25298 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -45,7 +45,7 @@ struct checkout_opts {
 
 	int branch_exists;
 	const char *prefix;
-	const char **pathspec;
+	struct pathspec pathspec;
 	struct tree *source_tree;
 };
 
@@ -256,39 +256,37 @@ static int checkout_paths(const struct checkout_opts *opts,
 
 	if (opts->patch_mode)
 		return run_add_interactive(revision, "--patch=checkout",
-					   opts->pathspec);
+					   opts->pathspec.raw);
 
 	lock_file = xcalloc(1, sizeof(struct lock_file));
 
 	newfd = hold_locked_index(lock_file, 1);
-	if (read_cache_preload(opts->pathspec) < 0)
+	if (read_cache_preload(opts->pathspec.raw) < 0)
 		return error(_("corrupt index file"));
 
 	if (opts->source_tree)
-		read_tree_some(opts->source_tree, opts->pathspec);
+		read_tree_some(opts->source_tree, opts->pathspec.raw);
 
-	for (pos = 0; opts->pathspec[pos]; pos++)
-		;
-	ps_matched = xcalloc(1, pos);
+	ps_matched = xcalloc(1, opts->pathspec.nr);
 
 	for (pos = 0; pos < active_nr; pos++) {
 		struct cache_entry *ce = active_cache[pos];
 		if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
 			continue;
-		match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
+		match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
 	}
 
-	if (report_path_error(ps_matched, opts->pathspec, opts->prefix))
+	if (report_path_error(ps_matched, opts->pathspec.raw, opts->prefix))
 		return 1;
 
 	/* "checkout -m path" to recreate conflicted state */
 	if (opts->merge)
-		unmerge_cache(opts->pathspec);
+		unmerge_cache(opts->pathspec.raw);
 
 	/* Any unmerged paths? */
 	for (pos = 0; pos < active_nr; pos++) {
 		struct cache_entry *ce = active_cache[pos];
-		if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
+		if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
 			if (!ce_stage(ce))
 				continue;
 			if (opts->force) {
@@ -315,7 +313,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 		struct cache_entry *ce = active_cache[pos];
 		if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
 			continue;
-		if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
+		if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
 			if (!ce_stage(ce)) {
 				errs |= checkout_entry(ce, &state, NULL);
 				continue;
@@ -960,7 +958,7 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts)
 static int checkout_branch(struct checkout_opts *opts,
 			   struct branch_info *new)
 {
-	if (opts->pathspec)
+	if (opts->pathspec.nr)
 		die(_("paths cannot be used with switching branches"));
 
 	if (opts->patch_mode)
@@ -1110,9 +1108,9 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 	}
 
 	if (argc) {
-		opts.pathspec = get_pathspec(prefix, argv);
+		parse_pathspec(&opts.pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
 
-		if (!opts.pathspec)
+		if (!opts.pathspec.nr)
 			die(_("invalid path specification"));
 
 		/*
@@ -1144,7 +1142,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 		strbuf_release(&buf);
 	}
 
-	if (opts.patch_mode || opts.pathspec)
+	if (opts.patch_mode || opts.pathspec.nr)
 		return checkout_paths(&opts, new.name);
 	else
 		return checkout_branch(&opts, &new);
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 09/21] rm: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/rm.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/builtin/rm.c b/builtin/rm.c
index dabfcf6..d719d95 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -216,7 +216,7 @@ static struct option builtin_rm_options[] = {
 int cmd_rm(int argc, const char **argv, const char *prefix)
 {
 	int i, newfd;
-	const char **pathspec;
+	struct pathspec pathspec;
 	char *seen;
 
 	git_config(git_default_config, NULL);
@@ -249,27 +249,25 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 		}
 	}
 
-	pathspec = get_pathspec(prefix, argv);
-	refresh_index(&the_index, REFRESH_QUIET, pathspec, NULL, NULL);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
+	refresh_index(&the_index, REFRESH_QUIET, pathspec.raw, NULL, NULL);
 
 	seen = NULL;
-	for (i = 0; pathspec[i] ; i++)
-		/* nothing */;
-	seen = xcalloc(i, 1);
+	seen = xcalloc(pathspec.nr, 1);
 
 	for (i = 0; i < active_nr; i++) {
 		struct cache_entry *ce = active_cache[i];
-		if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
+		if (!match_pathspec_depth(&pathspec, ce->name, ce_namelen(ce), 0, seen))
 			continue;
 		ALLOC_GROW(list.entry, list.nr + 1, list.alloc);
 		list.entry[list.nr].name = ce->name;
 		list.entry[list.nr++].is_submodule = S_ISGITLINK(ce->ce_mode);
 	}
 
-	if (pathspec) {
+	if (pathspec.nr) {
 		const char *match;
 		int seen_any = 0;
-		for (i = 0; (match = pathspec[i]) != NULL ; i++) {
+		for (i = 0; (match = pathspec.raw[i]) != NULL ; i++) {
 			if (!seen[i]) {
 				if (!ignore_unmatch) {
 					die(_("pathspec '%s' did not match any files"),
-- 
1.8.0.rc2.23.g1fb49df

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

[Nguyễn Thái Ngọc Duy]

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

[PATCH v2 11/21] archive: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 archive.c | 10 ++++------
 archive.h |  2 +-
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/archive.c b/archive.c
index 4666404..530badb 100644
--- a/archive.c
+++ b/archive.c
@@ -150,7 +150,6 @@ int write_archive_entries(struct archiver_args *args,
 	struct archiver_context context;
 	struct unpack_trees_options opts;
 	struct tree_desc t;
-	struct pathspec pathspec;
 	int err;
 
 	if (args->baselen > 0 && args->base[args->baselen - 1] == '/') {
@@ -185,10 +184,8 @@ int write_archive_entries(struct archiver_args *args,
 		git_attr_set_direction(GIT_ATTR_INDEX, &the_index);
 	}
 
-	init_pathspec(&pathspec, args->pathspec);
-	err = read_tree_recursive(args->tree, "", 0, 0, &pathspec,
+	err = read_tree_recursive(args->tree, "", 0, 0, &args->pathspec,
 				  write_archive_entry, &context);
-	free_pathspec(&pathspec);
 	if (err == READ_TREE_RECURSIVE)
 		err = 0;
 	return err;
@@ -230,8 +227,9 @@ static int path_exists(struct tree *tree, const char *path)
 static void parse_pathspec_arg(const char **pathspec,
 		struct archiver_args *ar_args)
 {
-	ar_args->pathspec = pathspec = get_pathspec("", pathspec);
-	if (pathspec) {
+	parse_pathspec(&ar_args->pathspec, PATHSPEC_FROMTOP, 0, "", pathspec);
+	if (ar_args->pathspec.nr) {
+		pathspec = ar_args->pathspec.raw;
 		while (*pathspec) {
 			if (!path_exists(ar_args->tree, *pathspec))
 				die("path not found: %s", *pathspec);
diff --git a/archive.h b/archive.h
index 895afcd..a98c49e 100644
--- a/archive.h
+++ b/archive.h
@@ -8,7 +8,7 @@ struct archiver_args {
 	const unsigned char *commit_sha1;
 	const struct commit *commit;
 	time_t time;
-	const char **pathspec;
+	struct pathspec pathspec;
 	unsigned int verbose : 1;
 	unsigned int worktree_attributes : 1;
 	unsigned int convert : 1;
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 12/21] add: convert to use parse_pathspec

[Nguyễn Thái Ngọc Duy]

treat_gitlinks() 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. Note that treat_gitlinks() and
strip_trailing_slash_from_submodules() do not perform exactly the same
thing. But that does not matter for now.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/add.c | 84 ++++++++++++++++++++---------------------------------------
 cache.h       |  1 +
 dir.c         | 32 +++++++++++++++++++++++
 3 files changed, 61 insertions(+), 56 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index e664100..c8592fe 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -153,33 +153,6 @@ static char *prune_directory(struct dir_struct *dir, const char **pathspec, int
 	return seen;
 }
 
-static void treat_gitlinks(const char **pathspec)
-{
-	int i;
-
-	if (!pathspec || !*pathspec)
-		return;
-
-	for (i = 0; i < active_nr; i++) {
-		struct cache_entry *ce = active_cache[i];
-		if (S_ISGITLINK(ce->ce_mode)) {
-			int len = ce_namelen(ce), j;
-			for (j = 0; pathspec[j]; j++) {
-				int len2 = strlen(pathspec[j]);
-				if (len2 <= len || pathspec[j][len] != '/' ||
-				    memcmp(ce->name, pathspec[j], len))
-					continue;
-				if (len2 == len + 1)
-					/* strip trailing slash */
-					pathspec[j] = xstrndup(ce->name, len);
-				else
-					die (_("Path '%s' is in submodule '%.*s'"),
-						pathspec[j], len, ce->name);
-			}
-		}
-	}
-}
-
 static void refresh(int verbose, const char **pathspec)
 {
 	char *seen;
@@ -197,21 +170,18 @@ static void refresh(int verbose, const char **pathspec)
         free(seen);
 }
 
-static const char **validate_pathspec(int argc, const char **argv, const char *prefix)
+static void validate_pathspec(const char **pathspec, const char *prefix)
 {
-	const char **pathspec = get_pathspec(prefix, argv);
-
-	if (pathspec) {
-		const char **p;
-		for (p = pathspec; *p; p++) {
-			if (has_symlink_leading_path(*p, strlen(*p))) {
-				int len = prefix ? strlen(prefix) : 0;
-				die(_("'%s' is beyond a symbolic link"), *p + len);
-			}
+	const char **p;
+	if (!pathspec)
+		return;
+
+	for (p = pathspec; *p; p++) {
+		if (has_symlink_leading_path(*p, strlen(*p))) {
+			int len = prefix ? strlen(prefix) : 0;
+			die(_("'%s' is beyond a symbolic link"), *p + len);
 		}
 	}
-
-	return pathspec;
 }
 
 int run_add_interactive(const char *revision, const char *patch_mode,
@@ -248,7 +218,8 @@ int interactive_add(int argc, const char **argv, const char *prefix, int patch)
 	const char **pathspec = NULL;
 
 	if (argc) {
-		pathspec = validate_pathspec(argc, argv, prefix);
+		pathspec = get_pathspec(prefix, argv);
+		validate_pathspec(pathspec, prefix);
 		if (!pathspec)
 			return -1;
 	}
@@ -367,7 +338,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 {
 	int exit_status = 0;
 	int newfd;
-	const char **pathspec;
+	struct pathspec pathspec;
 	struct dir_struct dir;
 	int flags;
 	int add_new_files;
@@ -415,11 +386,12 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
 		return 0;
 	}
-	pathspec = validate_pathspec(argc, argv, prefix);
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
+	validate_pathspec(pathspec.raw, prefix);
 
 	if (read_cache() < 0)
 		die(_("index file corrupt"));
-	treat_gitlinks(pathspec);
+	treat_gitlinks(&pathspec);
 
 	if (add_new_files) {
 		int baselen;
@@ -432,33 +404,33 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		}
 
 		/* This picks up the paths that are not tracked */
-		baselen = fill_directory(&dir, pathspec);
-		if (pathspec)
-			seen = prune_directory(&dir, pathspec, baselen);
+		baselen = fill_directory(&dir, pathspec.raw);
+		if (pathspec.nr)
+			seen = prune_directory(&dir, pathspec.raw, baselen);
 	}
 
 	if (refresh_only) {
-		refresh(verbose, pathspec);
+		refresh(verbose, pathspec.raw);
 		goto finish;
 	}
 
-	if (pathspec) {
+	if (pathspec.nr) {
 		int i;
 		struct path_exclude_check check;
 
 		path_exclude_check_init(&check, &dir);
 		if (!seen)
-			seen = find_used_pathspec(pathspec);
-		for (i = 0; pathspec[i]; i++) {
-			if (!seen[i] && pathspec[i][0]
-			    && !file_exists(pathspec[i])) {
+			seen = find_used_pathspec(pathspec.raw);
+		for (i = 0; pathspec.raw[i]; i++) {
+			if (!seen[i] && pathspec.raw[i][0]
+			    && !file_exists(pathspec.raw[i])) {
 				if (ignore_missing) {
 					int dtype = DT_UNKNOWN;
-					if (path_excluded(&check, pathspec[i], -1, &dtype))
-						dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i]));
+					if (path_excluded(&check, pathspec.raw[i], -1, &dtype))
+						dir_add_ignored(&dir, pathspec.raw[i], strlen(pathspec.raw[i]));
 				} else
 					die(_("pathspec '%s' did not match any files"),
-					    pathspec[i]);
+					    pathspec.raw[i]);
 			}
 		}
 		free(seen);
@@ -467,7 +439,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 
 	plug_bulk_checkin();
 
-	exit_status |= add_files_to_cache(prefix, pathspec, flags);
+	exit_status |= add_files_to_cache(prefix, pathspec.raw, flags);
 
 	if (add_new_files)
 		exit_status |= add_files(&dir, flags);
diff --git a/cache.h b/cache.h
index 62eefb1..af96376 100644
--- a/cache.h
+++ b/cache.h
@@ -497,6 +497,7 @@ 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);
+void treat_gitlinks(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 4be3ca1..4d1f71c 100644
--- a/dir.c
+++ b/dir.c
@@ -1460,6 +1460,38 @@ void strip_trailing_slash_from_submodules(struct pathspec *pathspec)
 	}
 }
 
+void treat_gitlinks(struct pathspec *pathspec)
+{
+	int i;
+
+	for (i = 0; i < active_nr; i++) {
+		struct cache_entry *ce = active_cache[i];
+		int len = ce_namelen(ce), j;
+
+		if (!S_ISGITLINK(ce->ce_mode))
+			continue;
+
+		for (j = 0; j < pathspec->nr; j++) {
+			int len2 = strlen(pathspec->raw[j]);
+			if (len2 <= len || pathspec->raw[j][len] != '/' ||
+			    memcmp(ce->name, pathspec->raw[j], len))
+				continue;
+			if (len2 == len + 1) {
+				/* strip trailing slash */
+				char *path = xstrndup(ce->name, len);
+				pathspec->raw[j] = path;
+				pathspec->items[j].match = path;
+				pathspec->items[j].len = len;
+				pathspec->items[j].nowildcard_len = simple_length(path);
+			} else
+				die (_("Path '%s' is in submodule '%.*s'"),
+				     pathspec->raw[j], len, ce->name);
+		}
+	}
+}
+
+
+
 void free_pathspec(struct pathspec *pathspec)
 {
 	free(pathspec->items);
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 13/21] Convert read_cache_preload() to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c   |  2 +-
 builtin/commit.c     |  4 ++--
 builtin/diff-files.c |  2 +-
 builtin/diff-index.c |  2 +-
 builtin/diff.c       |  4 ++--
 cache.h              |  4 +++-
 preload-index.c      | 20 +++++++++++---------
 7 files changed, 21 insertions(+), 17 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index da25298..00910dc 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -261,7 +261,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 	lock_file = xcalloc(1, sizeof(struct lock_file));
 
 	newfd = hold_locked_index(lock_file, 1);
-	if (read_cache_preload(opts->pathspec.raw) < 0)
+	if (read_cache_preload(&opts->pathspec) < 0)
 		return error(_("corrupt index file"));
 
 	if (opts->source_tree)
diff --git a/builtin/commit.c b/builtin/commit.c
index 196dfab..069d853 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -287,7 +287,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 		       PATHSPEC_EMPTY_MATCH_ALL,
 		       prefix, argv);
 
-	if (read_cache_preload(pathspec.raw) < 0)
+	if (read_cache_preload(&pathspec) < 0)
 		die(_("index file corrupt"));
 
 	if (interactive) {
@@ -1209,7 +1209,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 		       PATHSPEC_EMPTY_MATCH_ALL,
 		       prefix, argv);
 
-	read_cache_preload(s.pathspec.raw);
+	read_cache_preload(&s.pathspec);
 	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec.raw, NULL, NULL);
 
 	fd = hold_locked_index(&index_lock, 0);
diff --git a/builtin/diff-files.c b/builtin/diff-files.c
index 46085f8..9200069 100644
--- a/builtin/diff-files.c
+++ b/builtin/diff-files.c
@@ -61,7 +61,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix)
 	    (rev.diffopt.output_format & DIFF_FORMAT_PATCH))
 		rev.combine_merges = rev.dense_combined_merges = 1;
 
-	if (read_cache_preload(rev.diffopt.pathspec.raw) < 0) {
+	if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
 		perror("read_cache_preload");
 		return -1;
 	}
diff --git a/builtin/diff-index.c b/builtin/diff-index.c
index 1c737f7..ce15b23 100644
--- a/builtin/diff-index.c
+++ b/builtin/diff-index.c
@@ -43,7 +43,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
 		usage(diff_cache_usage);
 	if (!cached) {
 		setup_work_tree();
-		if (read_cache_preload(rev.diffopt.pathspec.raw) < 0) {
+		if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
 			perror("read_cache_preload");
 			return -1;
 		}
diff --git a/builtin/diff.c b/builtin/diff.c
index 8c2af6c..62bdc4d 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -140,7 +140,7 @@ static int builtin_diff_index(struct rev_info *revs,
 		usage(builtin_diff_usage);
 	if (!cached) {
 		setup_work_tree();
-		if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) {
+		if (read_cache_preload(&revs->diffopt.pathspec) < 0) {
 			perror("read_cache_preload");
 			return -1;
 		}
@@ -240,7 +240,7 @@ static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv
 		revs->combine_merges = revs->dense_combined_merges = 1;
 
 	setup_work_tree();
-	if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) {
+	if (read_cache_preload(&revs->diffopt.pathspec) < 0) {
 		perror("read_cache_preload");
 		return -1;
 	}
diff --git a/cache.h b/cache.h
index af96376..c594ded 100644
--- a/cache.h
+++ b/cache.h
@@ -182,6 +182,8 @@ struct cache_entry {
 #error "CE_EXTENDED_FLAGS out of range"
 #endif
 
+struct pathspec;
+
 /*
  * Copy the sha1 and stat state of a cache entry from one to
  * another. But we never change the name, or the hash state!
@@ -433,7 +435,7 @@ extern int init_db(const char *template_dir, unsigned int flags);
 
 /* Initialize and use the cache information */
 extern int read_index(struct index_state *);
-extern int read_index_preload(struct index_state *, const char **pathspec);
+extern int read_index_preload(struct index_state *, const struct pathspec *pathspec);
 extern int read_index_from(struct index_state *, const char *path);
 extern int is_index_unborn(struct index_state *);
 extern int read_index_unmerged(struct index_state *);
diff --git a/preload-index.c b/preload-index.c
index 49cb08d..91f27f7 100644
--- a/preload-index.c
+++ b/preload-index.c
@@ -4,7 +4,8 @@
 #include "cache.h"
 
 #ifdef NO_PTHREADS
-static void preload_index(struct index_state *index, const char **pathspec)
+static void preload_index(struct index_state *index,
+			  const struct pathspec *pathspec)
 {
 	; /* nothing */
 }
@@ -24,7 +25,7 @@ static void preload_index(struct index_state *index, const char **pathspec)
 struct thread_data {
 	pthread_t pthread;
 	struct index_state *index;
-	const char **pathspec;
+	struct pathspec pathspec;
 	int offset, nr;
 };
 
@@ -35,9 +36,7 @@ static void *preload_thread(void *_data)
 	struct index_state *index = p->index;
 	struct cache_entry **cep = index->cache + p->offset;
 	struct cache_def cache;
-	struct pathspec pathspec;
 
-	init_pathspec(&pathspec, p->pathspec);
 	memset(&cache, 0, sizeof(cache));
 	nr = p->nr;
 	if (nr + p->offset > index->cache_nr)
@@ -53,7 +52,7 @@ static void *preload_thread(void *_data)
 			continue;
 		if (ce_uptodate(ce))
 			continue;
-		if (!ce_path_match(ce, &pathspec))
+		if (!ce_path_match(ce, &p->pathspec))
 			continue;
 		if (threaded_has_symlink_leading_path(&cache, ce->name, ce_namelen(ce)))
 			continue;
@@ -63,11 +62,11 @@ static void *preload_thread(void *_data)
 			continue;
 		ce_mark_uptodate(ce);
 	} while (--nr > 0);
-	free_pathspec(&pathspec);
 	return NULL;
 }
 
-static void preload_index(struct index_state *index, const char **pathspec)
+static void preload_index(struct index_state *index,
+			  const struct pathspec *pathspec)
 {
 	int threads, i, work, offset;
 	struct thread_data data[MAX_PARALLEL];
@@ -82,10 +81,12 @@ static void preload_index(struct index_state *index, const char **pathspec)
 		threads = MAX_PARALLEL;
 	offset = 0;
 	work = DIV_ROUND_UP(index->cache_nr, threads);
+	memset(&data, 0, sizeof(data));
 	for (i = 0; i < threads; i++) {
 		struct thread_data *p = data+i;
 		p->index = index;
-		p->pathspec = pathspec;
+		if (pathspec)
+			p->pathspec = *pathspec;
 		p->offset = offset;
 		p->nr = work;
 		offset += work;
@@ -100,7 +101,8 @@ static void preload_index(struct index_state *index, const char **pathspec)
 }
 #endif
 
-int read_index_preload(struct index_state *index, const char **pathspec)
+int read_index_preload(struct index_state *index,
+		       const struct pathspec *pathspec)
 {
 	int retval = read_index(index);
 
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 14/21] Convert unmerge_cache to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c | 2 +-
 rerere.c           | 2 +-
 resolve-undo.c     | 4 ++--
 resolve-undo.h     | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 00910dc..aa399d6 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -281,7 +281,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 
 	/* "checkout -m path" to recreate conflicted state */
 	if (opts->merge)
-		unmerge_cache(opts->pathspec.raw);
+		unmerge_cache(&opts->pathspec);
 
 	/* Any unmerged paths? */
 	for (pos = 0; pos < active_nr; pos++) {
diff --git a/rerere.c b/rerere.c
index f8ddf85..9d149fa 100644
--- a/rerere.c
+++ b/rerere.c
@@ -666,7 +666,7 @@ int rerere_forget(struct pathspec *pathspec)
 
 	fd = setup_rerere(&merge_rr, RERERE_NOAUTOUPDATE);
 
-	unmerge_cache(pathspec->raw);
+	unmerge_cache(pathspec);
 	find_conflict(&conflict);
 	for (i = 0; i < conflict.nr; i++) {
 		struct string_list_item *it = &conflict.items[i];
diff --git a/resolve-undo.c b/resolve-undo.c
index 72b4612..1bfece2 100644
--- a/resolve-undo.c
+++ b/resolve-undo.c
@@ -156,7 +156,7 @@ int unmerge_index_entry_at(struct index_state *istate, int pos)
 	return unmerge_index_entry_at(istate, pos);
 }
 
-void unmerge_index(struct index_state *istate, const char **pathspec)
+void unmerge_index(struct index_state *istate, const struct pathspec *pathspec)
 {
 	int i;
 
@@ -165,7 +165,7 @@ void unmerge_index(struct index_state *istate, const char **pathspec)
 
 	for (i = 0; i < istate->cache_nr; i++) {
 		struct cache_entry *ce = istate->cache[i];
-		if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, NULL))
+		if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL))
 			continue;
 		i = unmerge_index_entry_at(istate, i);
 	}
diff --git a/resolve-undo.h b/resolve-undo.h
index 8458769..81e8803 100644
--- a/resolve-undo.h
+++ b/resolve-undo.h
@@ -11,6 +11,6 @@ extern void resolve_undo_write(struct strbuf *, struct string_list *);
 extern struct string_list *resolve_undo_read(const char *, unsigned long);
 extern void resolve_undo_clear_index(struct index_state *);
 extern int unmerge_index_entry_at(struct index_state *, int);
-extern void unmerge_index(struct index_state *, const char **);
+extern void unmerge_index(struct index_state *, const struct pathspec *);
 
 #endif
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 15/21] checkout: convert read_tree_some to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c | 9 +++------
 tree.c             | 4 ++--
 tree.h             | 2 +-
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index aa399d6..a7ddb35 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -82,12 +82,9 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen,
 	return 0;
 }
 
-static int read_tree_some(struct tree *tree, const char **pathspec)
+static int read_tree_some(struct tree *tree, const struct pathspec *pathspec)
 {
-	struct pathspec ps;
-	init_pathspec(&ps, pathspec);
-	read_tree_recursive(tree, "", 0, 0, &ps, update_some, NULL);
-	free_pathspec(&ps);
+	read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL);
 
 	/* update the index with the given tree's info
 	 * for all args, expanding wildcards, and exit
@@ -265,7 +262,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 		return error(_("corrupt index file"));
 
 	if (opts->source_tree)
-		read_tree_some(opts->source_tree, opts->pathspec.raw);
+		read_tree_some(opts->source_tree, &opts->pathspec);
 
 	ps_matched = xcalloc(1, opts->pathspec.nr);
 
diff --git a/tree.c b/tree.c
index 62fed63..ff72f67 100644
--- a/tree.c
+++ b/tree.c
@@ -47,7 +47,7 @@ static int read_one_entry_quick(const unsigned char *sha1, const char *base, int
 }
 
 static int read_tree_1(struct tree *tree, struct strbuf *base,
-		       int stage, struct pathspec *pathspec,
+		       int stage, const struct pathspec *pathspec,
 		       read_tree_fn_t fn, void *context)
 {
 	struct tree_desc desc;
@@ -116,7 +116,7 @@ static int read_tree_1(struct tree *tree, struct strbuf *base,
 
 int read_tree_recursive(struct tree *tree,
 			const char *base, int baselen,
-			int stage, struct pathspec *pathspec,
+			int stage, const struct pathspec *pathspec,
 			read_tree_fn_t fn, void *context)
 {
 	struct strbuf sb = STRBUF_INIT;
diff --git a/tree.h b/tree.h
index 69bcb5e..9dc90ba 100644
--- a/tree.h
+++ b/tree.h
@@ -25,7 +25,7 @@ typedef int (*read_tree_fn_t)(const unsigned char *, const char *, int, const ch
 
 extern int read_tree_recursive(struct tree *tree,
 			       const char *base, int baselen,
-			       int stage, struct pathspec *pathspec,
+			       int stage, const struct pathspec *pathspec,
 			       read_tree_fn_t fn, void *context);
 
 extern int read_tree(struct tree *tree, int stage, struct pathspec *pathspec);
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 16/21] Convert report_path_error to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c |  2 +-
 builtin/commit.c   | 14 ++++++--------
 builtin/ls-files.c | 14 ++++++++------
 cache.h            |  2 +-
 4 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/builtin/checkout.c b/builtin/checkout.c
index a7ddb35..648768e 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -273,7 +273,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 		match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
 	}
 
-	if (report_path_error(ps_matched, opts->pathspec.raw, opts->prefix))
+	if (report_path_error(ps_matched, &opts->pathspec, opts->prefix))
 		return 1;
 
 	/* "checkout -m path" to recreate conflicted state */
diff --git a/builtin/commit.c b/builtin/commit.c
index 069d853..8777c19 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -181,20 +181,18 @@ static int commit_index_files(void)
  * and return the paths that match the given pattern in list.
  */
 static int list_paths(struct string_list *list, const char *with_tree,
-		      const char *prefix, const char **pattern)
+		      const char *prefix, const struct pathspec *pattern)
 {
 	int i;
 	char *m;
 
-	if (!pattern)
+	if (!pattern->nr)
 		return 0;
 
-	for (i = 0; pattern[i]; i++)
-		;
-	m = xcalloc(1, i);
+	m = xcalloc(1, pattern->nr);
 
 	if (with_tree) {
-		char *max_prefix = common_prefix(pattern);
+		char *max_prefix = common_prefix(pattern->raw);
 		overlay_tree_on_cache(with_tree, max_prefix ? max_prefix : prefix);
 		free(max_prefix);
 	}
@@ -205,7 +203,7 @@ static int list_paths(struct string_list *list, const char *with_tree,
 
 		if (ce->ce_flags & CE_UPDATE)
 			continue;
-		if (!match_pathspec(pattern, ce->name, ce_namelen(ce), 0, m))
+		if (!match_pathspec_depth(pattern, ce->name, ce_namelen(ce), 0, m))
 			continue;
 		item = string_list_insert(list, ce->name);
 		if (ce_skip_worktree(ce))
@@ -395,7 +393,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 
 	memset(&partial, 0, sizeof(partial));
 	partial.strdup_strings = 1;
-	if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, pathspec.raw))
+	if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, &pathspec))
 		exit(1);
 
 	discard_cache();
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 9336abd..be6e05d 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -349,7 +349,9 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix)
 	}
 }
 
-int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix)
+int report_path_error(const char *ps_matched,
+		      const struct pathspec *pathspec,
+		      const char *prefix)
 {
 	/*
 	 * Make sure all pathspec matched; otherwise it is an error.
@@ -357,7 +359,7 @@ int report_path_error(const char *ps_matched, const char **pathspec, const char
 	struct strbuf sb = STRBUF_INIT;
 	const char *name;
 	int num, errors = 0;
-	for (num = 0; pathspec[num]; num++) {
+	for (num = 0; num < pathspec->nr; num++) {
 		int other, found_dup;
 
 		if (ps_matched[num])
@@ -367,11 +369,11 @@ int report_path_error(const char *ps_matched, const char **pathspec, const char
 		 * twice.  Do not barf on such a mistake.
 		 */
 		for (found_dup = other = 0;
-		     !found_dup && pathspec[other];
+		     !found_dup && pathspec->raw[other];
 		     other++) {
 			if (other == num || !ps_matched[other])
 				continue;
-			if (!strcmp(pathspec[other], pathspec[num]))
+			if (!strcmp(pathspec->raw[other], pathspec->raw[num]))
 				/*
 				 * Ok, we have a match already.
 				 */
@@ -380,7 +382,7 @@ int report_path_error(const char *ps_matched, const char **pathspec, const char
 		if (found_dup)
 			continue;
 
-		name = quote_path_relative(pathspec[num], -1, &sb, prefix);
+		name = quote_path_relative(pathspec->raw[num], -1, &sb, prefix);
 		error("pathspec '%s' did not match any file(s) known to git.",
 		      name);
 		errors++;
@@ -572,7 +574,7 @@ 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.raw, prefix);
+		bad = report_path_error(ps_matched, &pathspec, prefix);
 		if (bad)
 			fprintf(stderr, "Did you forget to 'git add'?\n");
 
diff --git a/cache.h b/cache.h
index c594ded..40eaa04 100644
--- a/cache.h
+++ b/cache.h
@@ -1262,7 +1262,7 @@ extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
 #define ws_tab_width(rule)     ((rule) & WS_TAB_WIDTH_MASK)
 
 /* ls-files */
-int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix);
+int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix);
 void overlay_tree_on_cache(const char *tree_name, const char *prefix);
 
 char *alias_lookup(const char *alias);
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 17/21] Convert refresh_index to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/add.c    | 14 ++++++--------
 builtin/commit.c |  2 +-
 builtin/rm.c     |  2 +-
 cache.h          |  2 +-
 read-cache.c     |  5 +++--
 5 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index c8592fe..4e2b603 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -153,19 +153,17 @@ static char *prune_directory(struct dir_struct *dir, const char **pathspec, int
 	return seen;
 }
 
-static void refresh(int verbose, const char **pathspec)
+static void refresh(int verbose, const struct pathspec *pathspec)
 {
 	char *seen;
-	int i, specs;
+	int i;
 
-	for (specs = 0; pathspec[specs];  specs++)
-		/* nothing */;
-	seen = xcalloc(specs, 1);
+	seen = xcalloc(pathspec->nr, 1);
 	refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
 		      pathspec, seen, _("Unstaged changes after refreshing the index:"));
-	for (i = 0; i < specs; i++) {
+	for (i = 0; i < pathspec->nr; i++) {
 		if (!seen[i])
-			die(_("pathspec '%s' did not match any files"), pathspec[i]);
+			die(_("pathspec '%s' did not match any files"), pathspec->raw[i]);
 	}
         free(seen);
 }
@@ -410,7 +408,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 	}
 
 	if (refresh_only) {
-		refresh(verbose, pathspec.raw);
+		refresh(verbose, &pathspec);
 		goto finish;
 	}
 
diff --git a/builtin/commit.c b/builtin/commit.c
index 8777c19..2fe6054 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1208,7 +1208,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 		       prefix, argv);
 
 	read_cache_preload(&s.pathspec);
-	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec.raw, NULL, NULL);
+	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, &s.pathspec, NULL, NULL);
 
 	fd = hold_locked_index(&index_lock, 0);
 	if (0 <= fd)
diff --git a/builtin/rm.c b/builtin/rm.c
index d719d95..b5edde8 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -250,7 +250,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 	}
 
 	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
-	refresh_index(&the_index, REFRESH_QUIET, pathspec.raw, NULL, NULL);
+	refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL);
 
 	seen = NULL;
 	seen = xcalloc(pathspec.nr, 1);
diff --git a/cache.h b/cache.h
index 40eaa04..32298ba 100644
--- a/cache.h
+++ b/cache.h
@@ -515,7 +515,7 @@ extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
 #define REFRESH_IGNORE_MISSING	0x0008	/* ignore non-existent */
 #define REFRESH_IGNORE_SUBMODULES	0x0010	/* ignore submodules */
 #define REFRESH_IN_PORCELAIN	0x0020	/* user friendly output, not "needs update" */
-extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, const char *header_msg);
+extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg);
 
 struct lock_file {
 	struct lock_file *next;
diff --git a/read-cache.c b/read-cache.c
index fda78bc..dec2ba6 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1093,7 +1093,8 @@ static void show_file(const char * fmt, const char * name, int in_porcelain,
 	printf(fmt, name);
 }
 
-int refresh_index(struct index_state *istate, unsigned int flags, const char **pathspec,
+int refresh_index(struct index_state *istate, unsigned int flags,
+		  const struct pathspec *pathspec,
 		  char *seen, const char *header_msg)
 {
 	int i;
@@ -1128,7 +1129,7 @@ int refresh_index(struct index_state *istate, unsigned int flags, const char **p
 			continue;
 
 		if (pathspec &&
-		    !match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
+		    !match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, seen))
 			filtered = 1;
 
 		if (ce_stage(ce)) {
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 18/21] Convert {read,fill}_directory to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/add.c      |  2 +-
 builtin/clean.c    |  2 +-
 builtin/grep.c     |  2 +-
 builtin/ls-files.c |  2 +-
 dir.c              | 10 +++++-----
 dir.h              |  4 ++--
 wt-status.c        |  4 ++--
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index 4e2b603..0295cef 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -402,7 +402,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		}
 
 		/* This picks up the paths that are not tracked */
-		baselen = fill_directory(&dir, pathspec.raw);
+		baselen = fill_directory(&dir, &pathspec);
 		if (pathspec.nr)
 			seen = prune_directory(&dir, pathspec.raw, baselen);
 	}
diff --git a/builtin/clean.c b/builtin/clean.c
index 788ad8c..41c8cad 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -103,7 +103,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 
 	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
 
-	fill_directory(&dir, pathspec.raw);
+	fill_directory(&dir, &pathspec);
 
 	if (pathspec.nr)
 		seen = xmalloc(pathspec.nr);
diff --git a/builtin/grep.c b/builtin/grep.c
index 705f9ff..f370bad 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -522,7 +522,7 @@ static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec,
 	if (exc_std)
 		setup_standard_excludes(&dir);
 
-	fill_directory(&dir, pathspec->raw);
+	fill_directory(&dir, pathspec);
 	for (i = 0; i < dir.nr; i++) {
 		const char *name = dir.entries[i]->name;
 		int namelen = strlen(name);
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index be6e05d..7bb637b 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -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.raw);
+		fill_directory(dir, &pathspec);
 		if (show_others)
 			show_other_files(dir);
 		if (show_killed)
diff --git a/dir.c b/dir.c
index 4d1f71c..eb52913 100644
--- a/dir.c
+++ b/dir.c
@@ -72,7 +72,7 @@ char *common_prefix(const char **pathspec)
 	return len ? xmemdupz(*pathspec, len) : NULL;
 }
 
-int fill_directory(struct dir_struct *dir, const char **pathspec)
+int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
 {
 	size_t len;
 
@@ -80,10 +80,10 @@ int fill_directory(struct dir_struct *dir, const char **pathspec)
 	 * Calculate common prefix for the pathspec, and
 	 * use that to optimize the directory walk
 	 */
-	len = common_prefix_len(pathspec);
+	len = common_prefix_len(pathspec->raw);
 
 	/* Read the directory and prune it */
-	read_directory(dir, pathspec ? *pathspec : "", len, pathspec);
+	read_directory(dir, pathspec->nr ? pathspec->raw[0] : "", len, pathspec);
 	return len;
 }
 
@@ -1211,14 +1211,14 @@ static int treat_leading_path(struct dir_struct *dir,
 	return rc;
 }
 
-int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec)
+int read_directory(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec)
 {
 	struct path_simplify *simplify;
 
 	if (has_symlink_leading_path(path, len))
 		return dir->nr;
 
-	simplify = create_simplify(pathspec);
+	simplify = create_simplify(pathspec ? pathspec->raw : NULL);
 	if (!len || treat_leading_path(dir, path, len, simplify))
 		read_directory_recursive(dir, path, len, 0, simplify);
 	free_simplify(simplify);
diff --git a/dir.h b/dir.h
index 1d4888b..b51d2e9 100644
--- a/dir.h
+++ b/dir.h
@@ -74,8 +74,8 @@ extern int match_pathspec_depth(const struct pathspec *pathspec,
 				int prefix, char *seen);
 extern int within_depth(const char *name, int namelen, int depth, int max_depth);
 
-extern int fill_directory(struct dir_struct *dir, const char **pathspec);
-extern int read_directory(struct dir_struct *, const char *path, int len, const char **pathspec);
+extern int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec);
+extern int read_directory(struct dir_struct *, const char *path, int len, const struct pathspec *pathspec);
 
 extern int excluded_from_list(const char *pathname, int pathlen, const char *basename,
 			      int *dtype, struct exclude_list *el);
diff --git a/wt-status.c b/wt-status.c
index 13e6aba..2e1a62b 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -502,7 +502,7 @@ static void wt_status_collect_untracked(struct wt_status *s)
 			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 	setup_standard_excludes(&dir);
 
-	fill_directory(&dir, s->pathspec.raw);
+	fill_directory(&dir, &s->pathspec);
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
 		if (cache_name_is_other(ent->name, ent->len) &&
@@ -514,7 +514,7 @@ static void wt_status_collect_untracked(struct wt_status *s)
 	if (s->show_ignored_files) {
 		dir.nr = 0;
 		dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
-		fill_directory(&dir, s->pathspec.raw);
+		fill_directory(&dir, &s->pathspec);
 		for (i = 0; i < dir.nr; i++) {
 			struct dir_entry *ent = dir.entries[i];
 			if (cache_name_is_other(ent->name, ent->len) &&
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 19/21] Convert add_files_to_cache to take struct pathspec

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/add.c    | 8 +++++---
 builtin/commit.c | 2 +-
 cache.h          | 2 +-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index 0295cef..5d262eb 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -80,13 +80,15 @@ static void update_callback(struct diff_queue_struct *q,
 	}
 }
 
-int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
+int add_files_to_cache(const char *prefix,
+		       const struct pathspec *pathspec, int flags)
 {
 	struct update_callback_data data;
 	struct rev_info rev;
 	init_revisions(&rev, prefix);
 	setup_revisions(0, NULL, &rev, NULL);
-	init_pathspec(&rev.prune_data, pathspec);
+	if (pathspec)
+		rev.prune_data = *pathspec;
 	rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = update_callback;
 	data.flags = flags;
@@ -437,7 +439,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 
 	plug_bulk_checkin();
 
-	exit_status |= add_files_to_cache(prefix, pathspec.raw, flags);
+	exit_status |= add_files_to_cache(prefix, &pathspec, flags);
 
 	if (add_new_files)
 		exit_status |= add_files(&dir, flags);
diff --git a/builtin/commit.c b/builtin/commit.c
index 2fe6054..d79613d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -329,7 +329,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix,
 	 */
 	if (all || (also && pathspec.nr)) {
 		fd = hold_locked_index(&index_lock, 1);
-		add_files_to_cache(also ? prefix : NULL, pathspec.raw, 0);
+		add_files_to_cache(also ? prefix : NULL, &pathspec, 0);
 		refresh_cache_or_die(refresh_flags);
 		update_main_cache_tree(WRITE_TREE_SILENT);
 		if (write_cache(fd, active_cache, active_nr) ||
diff --git a/cache.h b/cache.h
index 32298ba..3e09a61 100644
--- a/cache.h
+++ b/cache.h
@@ -1228,7 +1228,7 @@ void packet_trace_identity(const char *prog);
  * return 0 if success, 1 - if addition of a file failed and
  * ADD_FILES_IGNORE_ERRORS was specified in flags
  */
-int add_files_to_cache(const char *prefix, const char **pathspec, int flags);
+int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int flags);
 
 /* diff.c */
 extern int diff_auto_refresh_index;
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 20/21] Convert more init_pathspec() to parse_pathspec()

[Nguyễn Thái Ngọc Duy]

init_pathspec() was introduced to work with the result from
get_pathspec(). init_pathspec() will be removed eventually after
parse_pathspec() takes over, so that there is only place that
initializes struct pathspec.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 archive.c          |  2 +-
 builtin/log.c      |  2 +-
 builtin/ls-files.c | 10 ++++------
 diff-lib.c         |  2 +-
 merge-recursive.c  |  2 +-
 5 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/archive.c b/archive.c
index 530badb..3caa31f 100644
--- a/archive.c
+++ b/archive.c
@@ -218,7 +218,7 @@ static int path_exists(struct tree *tree, const char *path)
 	struct pathspec pathspec;
 	int ret;
 
-	init_pathspec(&pathspec, paths);
+	parse_pathspec(&pathspec, 0, 0, "", paths);
 	ret = read_tree_recursive(tree, "", 0, 0, &pathspec, reject_entry, NULL);
 	free_pathspec(&pathspec);
 	return ret != 0;
diff --git a/builtin/log.c b/builtin/log.c
index e7b7db1..495ae77 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -455,7 +455,7 @@ 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;
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 7bb637b..79949de 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -318,13 +318,11 @@ 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, 0, 0, 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 --git a/diff-lib.c b/diff-lib.c
index f35de0f..9c07f6a 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -500,7 +500,7 @@ 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);
+	revs.prune_data = opt->pathspec;
 	revs.diffopt = *opt;
 
 	if (diff_cache(&revs, tree_sha1, NULL, 1))
diff --git a/merge-recursive.c b/merge-recursive.c
index d882060..cd95bdb 100644
--- a/merge-recursive.c
+++ b/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;
-- 
1.8.0.rc2.23.g1fb49df

[PATCH v2 21/21] Rename field "raw" to "_raw" in struct pathspec

[Nguyễn Thái Ngọc Duy]

This patch is essentially no-op. It helps catching new use of this
field though. This field is introduced as an intermediate step for the
pathspec conversion and will be removed eventually. At this stage no
more access sites should be introduced.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 archive.c          |  2 +-
 builtin/add.c      | 20 ++++++++++----------
 builtin/checkout.c |  2 +-
 builtin/commit.c   |  2 +-
 builtin/ls-files.c |  8 ++++----
 builtin/ls-tree.c  |  2 +-
 builtin/rm.c       |  2 +-
 cache.h            |  2 +-
 dir.c              | 22 +++++++++++-----------
 revision.c         |  4 ++--
 setup.c            |  6 +++---
 tree-diff.c        |  8 ++++----
 12 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/archive.c b/archive.c
index 3caa31f..c52e525 100644
--- a/archive.c
+++ b/archive.c
@@ -229,7 +229,7 @@ static void parse_pathspec_arg(const char **pathspec,
 {
 	parse_pathspec(&ar_args->pathspec, PATHSPEC_FROMTOP, 0, "", pathspec);
 	if (ar_args->pathspec.nr) {
-		pathspec = ar_args->pathspec.raw;
+		pathspec = ar_args->pathspec._raw;
 		while (*pathspec) {
 			if (!path_exists(ar_args->tree, *pathspec))
 				die("path not found: %s", *pathspec);
diff --git a/builtin/add.c b/builtin/add.c
index 5d262eb..6b6a72e 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -165,7 +165,7 @@ static void refresh(int verbose, const struct pathspec *pathspec)
 		      pathspec, seen, _("Unstaged changes after refreshing the index:"));
 	for (i = 0; i < pathspec->nr; i++) {
 		if (!seen[i])
-			die(_("pathspec '%s' did not match any files"), pathspec->raw[i]);
+			die(_("pathspec '%s' did not match any files"), pathspec->_raw[i]);
 	}
         free(seen);
 }
@@ -387,7 +387,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		return 0;
 	}
 	parse_pathspec(&pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
-	validate_pathspec(pathspec.raw, prefix);
+	validate_pathspec(pathspec._raw, prefix);
 
 	if (read_cache() < 0)
 		die(_("index file corrupt"));
@@ -406,7 +406,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		/* This picks up the paths that are not tracked */
 		baselen = fill_directory(&dir, &pathspec);
 		if (pathspec.nr)
-			seen = prune_directory(&dir, pathspec.raw, baselen);
+			seen = prune_directory(&dir, pathspec._raw, baselen);
 	}
 
 	if (refresh_only) {
@@ -420,17 +420,17 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 
 		path_exclude_check_init(&check, &dir);
 		if (!seen)
-			seen = find_used_pathspec(pathspec.raw);
-		for (i = 0; pathspec.raw[i]; i++) {
-			if (!seen[i] && pathspec.raw[i][0]
-			    && !file_exists(pathspec.raw[i])) {
+			seen = find_used_pathspec(pathspec._raw);
+		for (i = 0; pathspec._raw[i]; i++) {
+			if (!seen[i] && pathspec._raw[i][0]
+			    && !file_exists(pathspec._raw[i])) {
 				if (ignore_missing) {
 					int dtype = DT_UNKNOWN;
-					if (path_excluded(&check, pathspec.raw[i], -1, &dtype))
-						dir_add_ignored(&dir, pathspec.raw[i], strlen(pathspec.raw[i]));
+					if (path_excluded(&check, pathspec._raw[i], -1, &dtype))
+						dir_add_ignored(&dir, pathspec._raw[i], strlen(pathspec._raw[i]));
 				} else
 					die(_("pathspec '%s' did not match any files"),
-					    pathspec.raw[i]);
+					    pathspec._raw[i]);
 			}
 		}
 		free(seen);
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 648768e..716a949 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -253,7 +253,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 
 	if (opts->patch_mode)
 		return run_add_interactive(revision, "--patch=checkout",
-					   opts->pathspec.raw);
+					   opts->pathspec._raw);
 
 	lock_file = xcalloc(1, sizeof(struct lock_file));
 
diff --git a/builtin/commit.c b/builtin/commit.c
index d79613d..876916c 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -192,7 +192,7 @@ static int list_paths(struct string_list *list, const char *with_tree,
 	m = xcalloc(1, pattern->nr);
 
 	if (with_tree) {
-		char *max_prefix = common_prefix(pattern->raw);
+		char *max_prefix = common_prefix(pattern->_raw);
 		overlay_tree_on_cache(with_tree, max_prefix ? max_prefix : prefix);
 		free(max_prefix);
 	}
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 79949de..e9caa42 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -367,11 +367,11 @@ int report_path_error(const char *ps_matched,
 		 * twice.  Do not barf on such a mistake.
 		 */
 		for (found_dup = other = 0;
-		     !found_dup && pathspec->raw[other];
+		     !found_dup && pathspec->_raw[other];
 		     other++) {
 			if (other == num || !ps_matched[other])
 				continue;
-			if (!strcmp(pathspec->raw[other], pathspec->raw[num]))
+			if (!strcmp(pathspec->_raw[other], pathspec->_raw[num]))
 				/*
 				 * Ok, we have a match already.
 				 */
@@ -380,7 +380,7 @@ int report_path_error(const char *ps_matched,
 		if (found_dup)
 			continue;
 
-		name = quote_path_relative(pathspec->raw[num], -1, &sb, prefix);
+		name = quote_path_relative(pathspec->_raw[num], -1, &sb, prefix);
 		error("pathspec '%s' did not match any file(s) known to git.",
 		      name);
 		errors++;
@@ -540,7 +540,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 	strip_trailing_slash_from_submodules(&pathspec);
 
 	/* Find common prefix for all pathspec's */
-	max_prefix = common_prefix(pathspec.raw);
+	max_prefix = common_prefix(pathspec._raw);
 	max_prefix_len = max_prefix ? strlen(max_prefix) : 0;
 
 	/* Treat unmatching pathspec elements as errors */
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index a78ba53..ebb587b 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -35,7 +35,7 @@ static int show_recursive(const char *base, int baselen, const char *pathname)
 	if (ls_options & LS_RECURSIVE)
 		return 1;
 
-	s = pathspec.raw;
+	s = pathspec._raw;
 	if (!s)
 		return 0;
 
diff --git a/builtin/rm.c b/builtin/rm.c
index b5edde8..d12311c 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -267,7 +267,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
 	if (pathspec.nr) {
 		const char *match;
 		int seen_any = 0;
-		for (i = 0; (match = pathspec.raw[i]) != NULL ; i++) {
+		for (i = 0; (match = pathspec._raw[i]) != NULL ; i++) {
 			if (!seen[i]) {
 				if (!ignore_unmatch) {
 					die(_("pathspec '%s' did not match any files"),
diff --git a/cache.h b/cache.h
index 3e09a61..c5a408f 100644
--- a/cache.h
+++ b/cache.h
@@ -482,7 +482,7 @@ extern int ie_modified(const struct index_state *, struct cache_entry *, struct
 #define PATHSPEC_EMPTY_MATCH_ALL (1<<0) /* No args means match everything */
 
 struct pathspec {
-	const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
+	const char **_raw; /* get_pathspec() result, not freed by free_pathspec() */
 	int nr;
 	unsigned int has_wildcard:1;
 	unsigned int recursive:1;
diff --git a/dir.c b/dir.c
index eb52913..aad180b 100644
--- a/dir.c
+++ b/dir.c
@@ -80,10 +80,10 @@ int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
 	 * Calculate common prefix for the pathspec, and
 	 * use that to optimize the directory walk
 	 */
-	len = common_prefix_len(pathspec->raw);
+	len = common_prefix_len(pathspec->_raw);
 
 	/* Read the directory and prune it */
-	read_directory(dir, pathspec->nr ? pathspec->raw[0] : "", len, pathspec);
+	read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec);
 	return len;
 }
 
@@ -1218,7 +1218,7 @@ int read_directory(struct dir_struct *dir, const char *path, int len, const stru
 	if (has_symlink_leading_path(path, len))
 		return dir->nr;
 
-	simplify = create_simplify(pathspec ? pathspec->raw : NULL);
+	simplify = create_simplify(pathspec ? pathspec->_raw : NULL);
 	if (!len || treat_leading_path(dir, path, len, simplify))
 		read_directory_recursive(dir, path, len, 0, simplify);
 	free_simplify(simplify);
@@ -1417,7 +1417,7 @@ int init_pathspec(struct pathspec *pathspec, const char **paths)
 		return 0;
 	while (*p)
 		p++;
-	pathspec->raw = paths;
+	pathspec->_raw = paths;
 	pathspec->nr = p - paths;
 	if (!pathspec->nr)
 		return 0;
@@ -1444,7 +1444,7 @@ void strip_trailing_slash_from_submodules(struct pathspec *pathspec)
 {
 	int i;
 	for (i = 0; i < pathspec->nr; i++) {
-		const char *p = pathspec->raw[i];
+		const char *p = pathspec->_raw[i];
 		int len = strlen(p), pos;
 
 		if (len < 1 || p[len - 1] != '/')
@@ -1452,7 +1452,7 @@ void strip_trailing_slash_from_submodules(struct pathspec *pathspec)
 		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->_raw[i] = path;
 			pathspec->items[i].match = path;
 			pathspec->items[i].len = len - 1;
 			pathspec->items[i].nowildcard_len = simple_length(path);
@@ -1472,20 +1472,20 @@ void treat_gitlinks(struct pathspec *pathspec)
 			continue;
 
 		for (j = 0; j < pathspec->nr; j++) {
-			int len2 = strlen(pathspec->raw[j]);
-			if (len2 <= len || pathspec->raw[j][len] != '/' ||
-			    memcmp(ce->name, pathspec->raw[j], len))
+			int len2 = strlen(pathspec->_raw[j]);
+			if (len2 <= len || pathspec->_raw[j][len] != '/' ||
+			    memcmp(ce->name, pathspec->_raw[j], len))
 				continue;
 			if (len2 == len + 1) {
 				/* strip trailing slash */
 				char *path = xstrndup(ce->name, len);
-				pathspec->raw[j] = path;
+				pathspec->_raw[j] = path;
 				pathspec->items[j].match = path;
 				pathspec->items[j].len = len;
 				pathspec->items[j].nowildcard_len = simple_length(path);
 			} else
 				die (_("Path '%s' is in submodule '%.*s'"),
-				     pathspec->raw[j], len, ce->name);
+				     pathspec->_raw[j], len, ce->name);
 		}
 	}
 }
diff --git a/revision.c b/revision.c
index a044242..d89bb22 100644
--- a/revision.c
+++ b/revision.c
@@ -1885,12 +1885,12 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct s
 		revs->limited = 1;
 
 	if (revs->prune_data.nr) {
-		diff_tree_setup_paths(revs->prune_data.raw, &revs->pruning);
+		diff_tree_setup_paths(revs->prune_data._raw, &revs->pruning);
 		/* Can't prune commits with rename following: the paths change.. */
 		if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES))
 			revs->prune = 1;
 		if (!revs->full_diff)
-			diff_tree_setup_paths(revs->prune_data.raw, &revs->diffopt);
+			diff_tree_setup_paths(revs->prune_data._raw, &revs->diffopt);
 	}
 	if (revs->combine_merges)
 		revs->ignore_merges = 0;
diff --git a/setup.c b/setup.c
index a26b6c0..1182a0a 100644
--- a/setup.c
+++ b/setup.c
@@ -293,7 +293,7 @@ void parse_pathspec(struct pathspec *pathspec,
 		raw[0] = prefix;
 		raw[1] = NULL;
 		pathspec->nr = 1;
-		pathspec->raw = raw;
+		pathspec->_raw = raw;
 		return;
 	}
 
@@ -303,7 +303,7 @@ void parse_pathspec(struct pathspec *pathspec,
 
 	pathspec->nr = n;
 	pathspec->items = item = xmalloc(sizeof(*item) * n);
-	pathspec->raw = argv;
+	pathspec->_raw = argv;
 	prefixlen = prefix ? strlen(prefix) : 0;
 
 	for (i = 0; i < n; i++) {
@@ -327,7 +327,7 @@ const char **get_pathspec(const char *prefix, const char **pathspec)
 {
 	struct pathspec ps;
 	parse_pathspec(&ps, PATHSPEC_FROMTOP, 0, prefix, pathspec);
-	return ps.raw;
+	return ps._raw;
 }
 
 /*
diff --git a/tree-diff.c b/tree-diff.c
index ba01563..09bddd1 100644
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -207,7 +207,7 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 	DIFF_OPT_SET(&diff_opts, RECURSIVE);
 	DIFF_OPT_SET(&diff_opts, FIND_COPIES_HARDER);
 	diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
-	diff_opts.single_follow = opt->pathspec.raw[0];
+	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;
@@ -228,15 +228,15 @@ static void try_to_follow_renames(struct tree_desc *t1, struct tree_desc *t2, co
 		 * the future!
 		 */
 		if ((p->status == 'R' || p->status == 'C') &&
-		    !strcmp(p->two->path, opt->pathspec.raw[0])) {
+		    !strcmp(p->two->path, opt->pathspec._raw[0])) {
 			/* Switch the file-pairs around */
 			q->queue[i] = choice;
 			choice = p;
 
 			/* Update the path we use from now on.. */
 			diff_tree_release_paths(opt);
-			opt->pathspec.raw[0] = xstrdup(p->one->path);
-			diff_tree_setup_paths(opt->pathspec.raw, opt);
+			opt->pathspec._raw[0] = xstrdup(p->one->path);
+			diff_tree_setup_paths(opt->pathspec._raw, opt);
 
 			/*
 			 * The caller expects us to return a set of vanilla
-- 
1.8.0.rc2.23.g1fb49df

Re: [PATCH v2 17/21] Convert refresh_index to take struct pathspec

[Nguyen Thai Ngoc Duy]

On Fri, Jan 11, 2013 at 06:21:11PM +0700, Nguyễn Thái Ngọc Duy wrote:
> -	for (i = 0; i < specs; i++) {
> +	for (i = 0; i < pathspec->nr; i++) {
>  		if (!seen[i])
> -			die(_("pathspec '%s' did not match any files"), pathspec[i]);
> +			die(_("pathspec '%s' did not match any files"), pathspec->raw[i]);
>  	}

This needs the following fixup on top. I don't want to send another
reroll just a couple hours after I flooded git@vger. I did not plan to
work on the series this soon but somehow another problem got me back
here.

-- 8< --
diff --git a/builtin/add.c b/builtin/add.c
index 1235eb9..e1bcdb9 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -159,7 +159,8 @@ static void refresh(int verbose, const struct pathspec *pathspec)
 		      pathspec, seen, _("Unstaged changes after refreshing the index:"));
 	for (i = 0; i < pathspec->nr; i++) {
 		if (!seen[i])
-			die(_("pathspec '%s' did not match any files"), pathspec->raw[i]);
+			die(_("pathspec '%s' did not match any files"),
+			    pathspec->items[i].match);
 	}
         free(seen);
 }
-- 8< --

and the baaad reason: pathspec->items[] are sorted because of 86e4ca6
(tree_entry_interesting(): fix depth limit with overlapping pathspecs
- 2010-12-15). But raw[] are _not_. So raw[i] does not correspond to
item[i].

Now seen[] array returned from match_pathspec() has the order
corresponding to raw[]. On the other hand match_pathspec_depth()
returns seen[] corresponds to items[]. This patch converts
match_pathspec() to match_pathspec_depth() so we need to use the
correct pathspec array.

I'll put these explanation in the next reroll. And don't worry about
this subtle difference. My next email kills match_pathspec() for good.

[PATCH v2 22/21] Convert the last use of match_pathspec() and remove it

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 I was digging the t7400.38 failure and found that add.c is the last
 place that uses match_pathspec(). This is the first yay moment for me
 since 'struct pathspec' was introduced. I wanted to remove this
 function for so long!

 Good luck resolving conflicts by the way ;-)

 builtin/add.c | 47 ++++++++++++-----------------
 dir.c         | 97 -----------------------------------------------------------
 dir.h         |  1 -
 3 files changed, 20 insertions(+), 125 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index 6b6a72e..1235eb9 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -99,7 +99,7 @@ int add_files_to_cache(const char *prefix,
 	return !!data.add_errors;
 }
 
-static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
+static void fill_pathspec_matches(struct pathspec *pathspec, char *seen)
 {
 	int num_unmatched = 0, i;
 
@@ -109,49 +109,43 @@ static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
 	 * mistakenly think that the user gave a pathspec that did not match
 	 * anything.
 	 */
-	for (i = 0; i < specs; i++)
+	for (i = 0; i < pathspec->nr; i++)
 		if (!seen[i])
 			num_unmatched++;
 	if (!num_unmatched)
 		return;
 	for (i = 0; i < active_nr; i++) {
 		struct cache_entry *ce = active_cache[i];
-		match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
+		match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, seen);
 	}
 }
 
-static char *find_used_pathspec(const char **pathspec)
+static char *find_used_pathspec(struct pathspec *pathspec)
 {
 	char *seen;
-	int i;
-
-	for (i = 0; pathspec[i];  i++)
-		; /* just counting */
-	seen = xcalloc(i, 1);
-	fill_pathspec_matches(pathspec, seen, i);
+	seen = xcalloc(pathspec->nr, 1);
+	fill_pathspec_matches(pathspec, seen);
 	return seen;
 }
 
-static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
+static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
 {
 	char *seen;
-	int i, specs;
+	int i;
 	struct dir_entry **src, **dst;
 
-	for (specs = 0; pathspec[specs];  specs++)
-		/* nothing */;
-	seen = xcalloc(specs, 1);
+	seen = xcalloc(pathspec->nr, 1);
 
 	src = dst = dir->entries;
 	i = dir->nr;
 	while (--i >= 0) {
 		struct dir_entry *entry = *src++;
-		if (match_pathspec(pathspec, entry->name, entry->len,
-				   prefix, seen))
+		if (match_pathspec_depth(pathspec, entry->name, entry->len,
+					 prefix, seen))
 			*dst++ = entry;
 	}
 	dir->nr = dst - dir->entries;
-	fill_pathspec_matches(pathspec, seen, specs);
+	fill_pathspec_matches(pathspec, seen);
 	return seen;
 }
 
@@ -406,7 +400,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 		/* This picks up the paths that are not tracked */
 		baselen = fill_directory(&dir, &pathspec);
 		if (pathspec.nr)
-			seen = prune_directory(&dir, pathspec._raw, baselen);
+			seen = prune_directory(&dir, &pathspec, baselen);
 	}
 
 	if (refresh_only) {
@@ -420,17 +414,16 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 
 		path_exclude_check_init(&check, &dir);
 		if (!seen)
-			seen = find_used_pathspec(pathspec._raw);
-		for (i = 0; pathspec._raw[i]; i++) {
-			if (!seen[i] && pathspec._raw[i][0]
-			    && !file_exists(pathspec._raw[i])) {
+			seen = find_used_pathspec(&pathspec);
+		for (i = 0; i < pathspec.nr; i++) {
+			const char *path = pathspec.items[i].match;
+			if (!seen[i] && !file_exists(path)) {
 				if (ignore_missing) {
 					int dtype = DT_UNKNOWN;
-					if (path_excluded(&check, pathspec._raw[i], -1, &dtype))
-						dir_add_ignored(&dir, pathspec._raw[i], strlen(pathspec._raw[i]));
+					if (path_excluded(&check, path, -1, &dtype))
+						dir_add_ignored(&dir, path, pathspec.items[i].len);
 				} else
-					die(_("pathspec '%s' did not match any files"),
-					    pathspec._raw[i]);
+					die(_("pathspec '%s' did not match any files"), path);
 			}
 		}
 		free(seen);
diff --git a/dir.c b/dir.c
index aad180b..44ff9bb 100644
--- a/dir.c
+++ b/dir.c
@@ -114,103 +114,6 @@ int within_depth(const char *name, int namelen,
  *
  * It returns 0 when there is no match.
  */
-static int match_one(const char *match, const char *name, int namelen)
-{
-	int matchlen;
-
-	/* If the match was just the prefix, we matched */
-	if (!*match)
-		return MATCHED_RECURSIVELY;
-
-	if (ignore_case) {
-		for (;;) {
-			unsigned char c1 = tolower(*match);
-			unsigned char c2 = tolower(*name);
-			if (c1 == '\0' || is_glob_special(c1))
-				break;
-			if (c1 != c2)
-				return 0;
-			match++;
-			name++;
-			namelen--;
-		}
-	} else {
-		for (;;) {
-			unsigned char c1 = *match;
-			unsigned char c2 = *name;
-			if (c1 == '\0' || is_glob_special(c1))
-				break;
-			if (c1 != c2)
-				return 0;
-			match++;
-			name++;
-			namelen--;
-		}
-	}
-
-
-	/*
-	 * If we don't match the matchstring exactly,
-	 * we need to match by fnmatch
-	 */
-	matchlen = strlen(match);
-	if (strncmp_icase(match, name, matchlen))
-		return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
-
-	if (namelen == matchlen)
-		return MATCHED_EXACTLY;
-	if (match[matchlen-1] == '/' || name[matchlen] == '/')
-		return MATCHED_RECURSIVELY;
-	return 0;
-}
-
-/*
- * Given a name and a list of pathspecs, see if the name matches
- * any of the pathspecs.  The caller is also interested in seeing
- * all pathspec matches some names it calls this function with
- * (otherwise the user could have mistyped the unmatched pathspec),
- * and a mark is left in seen[] array for pathspec element that
- * actually matched anything.
- */
-int match_pathspec(const char **pathspec, const char *name, int namelen,
-		int prefix, char *seen)
-{
-	int i, retval = 0;
-
-	if (!pathspec)
-		return 1;
-
-	name += prefix;
-	namelen -= prefix;
-
-	for (i = 0; pathspec[i] != NULL; i++) {
-		int how;
-		const char *match = pathspec[i] + prefix;
-		if (seen && seen[i] == MATCHED_EXACTLY)
-			continue;
-		how = match_one(match, name, namelen);
-		if (how) {
-			if (retval < how)
-				retval = how;
-			if (seen && seen[i] < how)
-				seen[i] = how;
-		}
-	}
-	return retval;
-}
-
-/*
- * Does 'match' match the given name?
- * A match is found if
- *
- * (1) the 'match' string is leading directory of 'name', or
- * (2) the 'match' string is a wildcard and matches 'name', or
- * (3) the 'match' string is exactly the same as 'name'.
- *
- * and the return value tells which case it was.
- *
- * It returns 0 when there is no match.
- */
 static int match_pathspec_item(const struct pathspec_item *item, int prefix,
 			       const char *name, int namelen)
 {
diff --git a/dir.h b/dir.h
index b51d2e9..44e24eb 100644
--- a/dir.h
+++ b/dir.h
@@ -68,7 +68,6 @@ struct dir_struct {
 #define MATCHED_EXACTLY 3
 extern int simple_length(const char *match);
 extern char *common_prefix(const char **pathspec);
-extern int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen);
 extern int match_pathspec_depth(const struct pathspec *pathspec,
 				const char *name, int namelen,
 				int prefix, char *seen);
-- 
1.8.0.rc2.23.g1fb49df

Re: [PATCH v2 03/21] Export parse_pathspec() and convert some get_pathspec() calls

[Matt Kraai]

On Fri, Jan 11, 2013 at 06:20:57PM +0700, Nguyễn Thái Ngọc Duy wrote:
> +#define PATHSPEC_FROMTOP    (1<<0)

The previous commit introduces a use of this macro in get_pathspec.
Should this be defined by that commit instead?

> @@ -266,9 +266,9 @@ static int pathspec_item_cmp(const void *a_, const void *b_)
>   * Given command line arguments and a prefix, convert the input to
>   * pathspec. die() if any magic other than ones in magic_mask.
>   */
> -static void parse_pathspec(struct pathspec *pathspec,
> -			   unsigned magic_mask, unsigned flags,
> -			   const char *prefix, const char **argv)
> +void parse_pathspec(struct pathspec *pathspec,
> +		    unsigned magic_mask, unsigned flags,

The prototype for this function uses just "magic" instead of
"magic_mask".  Should they be consistent?

-- 
Matt

Re: [PATCH v2 03/21] Export parse_pathspec() and convert some get_pathspec() calls

[Duy Nguyen]

On Sat, Jan 12, 2013 at 12:56 AM, Matt Kraai <kraai@ftbfs.org> wrote:
> On Fri, Jan 11, 2013 at 06:20:57PM +0700, Nguyễn Thái Ngọc Duy wrote:
>> +#define PATHSPEC_FROMTOP    (1<<0)
>
> The previous commit introduces a use of this macro in get_pathspec.
> Should this be defined by that commit instead?

This macro is already defined in setup.c when parse_pathspec is
introduced. I wanted to move it from setup.c to cache.h but forgot to
remove the original definition. Will fix.


>> @@ -266,9 +266,9 @@ static int pathspec_item_cmp(const void *a_, const void *b_)
>>   * Given command line arguments and a prefix, convert the input to
>>   * pathspec. die() if any magic other than ones in magic_mask.
>>   */
>> -static void parse_pathspec(struct pathspec *pathspec,
>> -                        unsigned magic_mask, unsigned flags,
>> -                        const char *prefix, const char **argv)
>> +void parse_pathspec(struct pathspec *pathspec,
>> +                 unsigned magic_mask, unsigned flags,
>
> The prototype for this function uses just "magic" instead of
> "magic_mask".  Should they be consistent?

Definitely. Will fix.
-- 
Duy

Re: [PATCH v2 05/21] commit: convert to use parse_pathspec

[Martin von Zweigbergk]

On Fri, Jan 11, 2013 at 3:20 AM, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
>
> diff --git a/cache.h b/cache.h
> index e52365d..a3c316f 100644
> --- a/cache.h
> +++ b/cache.h
> @@ -476,6 +476,9 @@ extern int ie_modified(const struct index_state *, struct cache_entry *, struct
>  /* Pathspec magic */
>  #define PATHSPEC_FROMTOP    (1<<0)
>
> +/* Pathspec flags */
> +#define PATHSPEC_EMPTY_MATCH_ALL (1<<0) /* No args means match everything */
> +
>  struct pathspec {
>         const char **raw; /* get_pathspec() result, not freed by free_pathspec() */
>         int nr;
> diff --git a/setup.c b/setup.c
> index 6e960b9..a26b6c0 100644
> --- a/setup.c
> +++ b/setup.c
> @@ -280,6 +280,9 @@ void parse_pathspec(struct pathspec *pathspec,
>         if (!entry && !prefix)
>                 return;
>
> +       if (!*argv && (flags & PATHSPEC_EMPTY_MATCH_ALL))
> +               return;
> +
>         /* No arguments with prefix -> prefix pathspec */
>         if (!entry) {
>                 static const char *raw[2];

I was surprised not to find these two hunks in 02/21. If they were
there, you wouldn't have to explain in the log message of that patch
that "flags" is for future-proofing. Also, "*argv" is written "entry"
in the surrounding conditions.