bisect: remove too much function nesting

This patch moves some function calls into "bisect_next_exit" so
that functions are nesting less.

The call to "bisect_rev_setup" is moved from "bisect_common" into
"bisect_next_exit" and the call to "read_bisect_refs" from
"bisect_rev_setup" into "bisect_next_exit".

While at it, "rev_argv" is moved into "bisect_rev_setup".

This will make it easier and cleaner to implement checking merge
bases.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/bisect.c b/bisect.c
index 8e34186f9599ea265e0d779fb0b9bbdae85ec7fa..9e01b9e0ef6e5d599b44201b750745b5d77b24c9 100644 (file)
--- a/bisect.c
+++ b/bisect.c
@@ -26,8 +26,6 @@ struct argv_array {
        int argv_alloc;
 };
 
-struct argv_array rev_argv;
-
 static const char *argv_diff_tree[] = {"diff-tree", "--pretty", NULL, NULL};
 static const char *argv_checkout[] = {"checkout", "-q", NULL, "--", NULL};
 static const char *argv_show_branch[] = {"show-branch", NULL, NULL};
@@ -539,15 +537,13 @@ struct commit_list *filter_skipped(struct commit_list *list,
 
 static void bisect_rev_setup(struct rev_info *revs, const char *prefix)
 {
+       struct argv_array rev_argv = { NULL, 0, 0 };
        int i;
 
        init_revisions(revs, prefix);
        revs->abbrev = 0;
        revs->commit_format = CMIT_FMT_UNSPECIFIED;
 
-       if (read_bisect_refs())
-               die("reading bisect refs failed");
-
        /* rev_argv.argv[0] will be ignored by setup_revisions */
        argv_array_push(&rev_argv, xstrdup("bisect_rev_setup"));
        argv_array_push_sha1(&rev_argv, current_bad_sha1, "%s");
@@ -561,11 +557,8 @@ static void bisect_rev_setup(struct rev_info *revs, const char *prefix)
        revs->limited = 1;
 }
 
-static void bisect_common(struct rev_info *revs, const char *prefix,
-                         int *reaches, int *all)
+static void bisect_common(struct rev_info *revs, int *reaches, int *all)
 {
-       bisect_rev_setup(revs, prefix);
-
        if (prepare_revision_walk(revs))
                die("revision walk setup failed");
        if (revs->tree_objects)
@@ -636,7 +629,12 @@ int bisect_next_exit(const char *prefix)
        const unsigned char *bisect_rev;
        char bisect_rev_hex[41];
 
-       bisect_common(&revs, prefix, &reaches, &all);
+       if (read_bisect_refs())
+               die("reading bisect refs failed");
+
+       bisect_rev_setup(&revs, prefix);
+
+       bisect_common(&revs, &reaches, &all);
 
        revs.commits = filter_skipped(revs.commits, &tried, 0);