convert run_add_interactive to use struct pathspec

This passes the pathspec, more or less unmodified, to
git-add--interactive. The command itself does not process pathspec. It
simply passes the pathspec to other builtin commands. So if all those
commands support pathspec, we're good.

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

builtin/add.c

@@ -244,16 +244,12 @@ static void refresh(int verbose, const char **pathspec)
 }
 
 int run_add_interactive(const char *revision, const char *patch_mode,
-			const char **pathspec)
+			const struct pathspec *pathspec)
 {
-	int status, ac, pc = 0;
+	int status, ac, i;
 	const char **args;
 
-	if (pathspec)
-		while (pathspec[pc])
-			pc++;
-
-	args = xcalloc(sizeof(const char *), (pc + 5));
+	args = xcalloc(sizeof(const char *), (pathspec->nr + 6));
 	ac = 0;
 	args[ac++] = "add--interactive";
 	if (patch_mode)
@@ -261,11 +257,9 @@ int run_add_interactive(const char *revision, const char *patch_mode,
 	if (revision)
 		args[ac++] = revision;
 	args[ac++] = "--";
-	if (pc) {
-		memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc);
-		ac += pc;
-	}
-	args[ac] = NULL;
+	for (i = 0; i < pathspec->nr; i++)
+		/* pass original pathspec, to be re-parsed */
+		args[ac++] = pathspec->items[i].original;
 
 	status = run_command_v_opt(args, RUN_GIT_CMD);
 	free(args);
@@ -280,17 +274,17 @@ int interactive_add(int argc, const char **argv, const char *prefix, int patch)
 	 * git-add--interactive itself does not parse pathspec. It
 	 * simply passes the pathspec to other builtin commands. Let's
 	 * hope all of them support all magic, or we'll need to limit
-	 * the magic here. There is still a problem with prefix. But
-	 * that'll be worked on later on.
+	 * the magic here.
 	 */
 	parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP,
 		       PATHSPEC_PREFER_FULL |
-		       PATHSPEC_SYMLINK_LEADING_PATH,
+		       PATHSPEC_SYMLINK_LEADING_PATH |
+		       PATHSPEC_PREFIX_ORIGIN,
 		       prefix, argv);
 
 	return run_add_interactive(NULL,
 				   patch ? "--patch" : NULL,
-				   pathspec.raw);
+				   &pathspec);
 }
 
 static int edit_patch(int argc, const char **argv, const char *prefix)

builtin/checkout.c

@@ -257,7 +257,7 @@ 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);
 
 	lock_file = xcalloc(1, sizeof(struct lock_file));
 
@@ -1159,10 +1159,9 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 		 * cannot handle. Magic mask is pretty safe to be
 		 * lifted for new magic when opts.patch_mode == 0.
 		 */
-		parse_pathspec(&opts.pathspec,
-			       opts.patch_mode == 0 ? 0 :
-			       (PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP),
-			       0, prefix, argv);
+		parse_pathspec(&opts.pathspec, 0,
+			       opts.patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0,
+			       prefix, argv);
 
 		if (!opts.pathspec.nr)
 			die(_("invalid path specification"));

builtin/reset.c

@@ -219,9 +219,9 @@ static void parse_args(struct pathspec *pathspec,
 		}
 	}
 	*rev_ret = rev;
-	parse_pathspec(pathspec,
-		       patch_mode ? PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP : 0,
-		       PATHSPEC_PREFER_FULL,
+	parse_pathspec(pathspec, 0,
+		       PATHSPEC_PREFER_FULL |
+		       (patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0),
 		       prefix, argv);
 }
 
@@ -299,7 +299,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 	if (patch_mode) {
 		if (reset_type != NONE)
 			die(_("--patch is incompatible with --{hard,mixed,soft}"));
-		return run_add_interactive(sha1_to_hex(sha1), "--patch=reset", pathspec.raw);
+		return run_add_interactive(sha1_to_hex(sha1), "--patch=reset", &pathspec);
 	}
 
 	/* git reset tree [--] paths... can be used to

commit.h

@@ -194,7 +194,7 @@ int in_merge_bases_many(struct commit *, int, struct commit **);
 
 extern int interactive_add(int argc, const char **argv, const char *prefix, int patch);
 extern int run_add_interactive(const char *revision, const char *patch_mode,
-			       const char **pathspec);
+			       const struct pathspec *pathspec);
 
 static inline int single_parent(struct commit *commit)
 {