[PATCH v3 18/31] add: convert to use parse_pathspec

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

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/add.c | 106 +++++++++++++++++++++-------------------------------------
 1 file changed, 39 insertions(+), 67 deletions(-)

diff --git a/builtin/add.c b/builtin/add.c
index 075312a..22076ff 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;
@@ -197,23 +170,6 @@ static void refresh(int verbose, const char **pathspec)
         free(seen);
 }
 
-static const char **validate_pathspec(int argc, const char **argv, 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);
-			}
-		}
-	}
-
-	return pathspec;
-}
-
 int run_add_interactive(const char *revision, const char *patch_mode,
 			const char **pathspec)
 {
@@ -245,17 +201,20 @@ int run_add_interactive(const char *revision, const char *patch_mode,
 
 int interactive_add(int argc, const char **argv, const char *prefix, int patch)
 {
-	const char **pathspec = NULL;
+	struct pathspec pathspec;
 
-	if (argc) {
-		pathspec = validate_pathspec(argc, argv, prefix);
-		if (!pathspec)
-			return -1;
-	}
+	/*
+	 * Do not enable fancy magic here.  git-add--interactive may
+	 * not be able to handle it.
+	 */
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP,
+		       PATHSPEC_EMPTY_MATCH_ALL |
+		       PATHSPEC_SYMLINK_LEADING_PATH,
+		       prefix, argv);
 
 	return run_add_interactive(NULL,
 				   patch ? "--patch" : NULL,
-				   pathspec);
+				   pathspec.raw);
 }
 
 static int edit_patch(int argc, const char **argv, const char *prefix)
@@ -367,7 +326,7 @@ 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 +374,18 @@ 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);
 
 	if (read_cache() < 0)
 		die(_("index file corrupt"));
-	treat_gitlinks(pathspec);
+
+	/*
+	 * Check the "pathspec '%s' did not match any files" block
+	 * below before enabling new magic.
+	 */
+	parse_pathspec(&pathspec, PATHSPEC_FROMTOP,
+		       PATHSPEC_SYMLINK_LEADING_PATH |
+		       PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE,
+		       prefix, argv);
 
 	if (add_new_files) {
 		int baselen;
@@ -432,33 +398,39 @@ 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);
+
+		/*
+		 * file_exists() assumes exact match
+		 */
+		GUARD_PATHSPEC(&pathspec, PATHSPEC_FROMTOP);
+
+		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 (is_path_excluded(&check, pathspec[i], -1, &dtype))
-						dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i]));
+					if (is_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);
-- 
1.8.0.rc2.23.g1fb49df