reset.c: pass pathspec around instead of (prefix, argv) pair

We use the path arguments in two places in reset.c: in
interactive_reset() and read_from_tree(). Both of these call
get_pathspec(), so we pass the (prefix, argv) pair to both
functions. Move the call to get_pathspec() out of these methods, for
two reasons: 1) One argument is simpler than two. 2) It lets us use
the (arguably clearer) "if (pathspec)" in place of "if (i < argc)".

Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/reset.c b/builtin/reset.c
index 65413d0a67041474625ea55a1912c178314b365c..045c9609f242cdddb67084dd4b8f98d04a30e242 100644 (file)
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -153,26 +153,15 @@ static void update_index_from_diff(struct diff_queue_struct *q,
        }
 }
 
-static int interactive_reset(const char *revision, const char **argv,
-                            const char *prefix)
-{
-       const char **pathspec = NULL;
-
-       if (*argv)
-               pathspec = get_pathspec(prefix, argv);
-
-       return run_add_interactive(revision, "--patch=reset", pathspec);
-}
-
-static int read_from_tree(const char *prefix, const char **argv,
-               unsigned char *tree_sha1, int refresh_flags)
+static int read_from_tree(const char **pathspec, unsigned char *tree_sha1,
+                         int refresh_flags)
 {
        struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
        int index_fd;
        struct diff_options opt;
 
        memset(&opt, 0, sizeof(opt));
-       diff_tree_setup_paths(get_pathspec(prefix, (const char **)argv), &opt);
+       diff_tree_setup_paths(pathspec, &opt);
        opt.output_format = DIFF_FORMAT_CALLBACK;
        opt.format_callback = update_index_from_diff;
 
@@ -216,6 +205,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
        const char *rev = "HEAD";
        unsigned char sha1[20], *orig = NULL, sha1_orig[20],
                                *old_orig = NULL, sha1_old_orig[20];
+       const char **pathspec = NULL;
        struct commit *commit;
        struct strbuf msg = STRBUF_INIT;
        const struct option options[] = {
@@ -287,22 +277,25 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
                die(_("Could not parse object '%s'."), rev);
        hashcpy(sha1, commit->object.sha1);
 
+       if (i < argc)
+               pathspec = get_pathspec(prefix, argv + i);
+
        if (patch_mode) {
                if (reset_type != NONE)
                        die(_("--patch is incompatible with --{hard,mixed,soft}"));
-               return interactive_reset(rev, argv + i, prefix);
+               return run_add_interactive(rev, "--patch=reset", pathspec);
        }
 
        /* git reset tree [--] paths... can be used to
         * load chosen paths from the tree into the index without
         * affecting the working tree nor HEAD. */
-       if (i < argc) {
+       if (pathspec) {
                if (reset_type == MIXED)
                        warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead."));
                else if (reset_type != NONE)
                        die(_("Cannot do %s reset with paths."),
                                        _(reset_type_names[reset_type]));
-               return read_from_tree(prefix, argv + i, sha1,
+               return read_from_tree(pathspec, sha1,
                                quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN);
        }
        if (reset_type == NONE)