bisect: store good revisions in a "sha1_array"

This will make it easier to use good revisions for checking merge
bases later.

To simplify the code, a new "sha1_array_push" function is also
introduced.

And while at it we move the earlier part of the code to fill the
argv that is passed to "setup_revisions", so that all this code is
now completely after "read_bisect_refs".

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 f99637d..7976cbf 100644 (file)
--- a/bisect.c
+++ b/bisect.c
@@ -15,6 +15,7 @@ struct sha1_array {
        int sha1_alloc;
 };
 
+static struct sha1_array good_revs;
 static struct sha1_array skipped_revs;
 
 static const char **rev_argv;
@@ -418,18 +419,22 @@ static void rev_argv_push(const unsigned char *sha1, const char *format)
        rev_argv[rev_argv_nr++] = strbuf_detach(&buf, NULL);
 }
 
+static void sha1_array_push(struct sha1_array *array,
+                           const unsigned char *sha1)
+{
+       ALLOC_GROW(array->sha1, array->sha1_nr + 1, array->sha1_alloc);
+       hashcpy(array->sha1[array->sha1_nr++], sha1);
+}
+
 static int register_ref(const char *refname, const unsigned char *sha1,
                        int flags, void *cb_data)
 {
        if (!strcmp(refname, "bad")) {
                current_bad_sha1 = sha1;
-               rev_argv_push(sha1, "%s");
        } else if (!prefixcmp(refname, "good-")) {
-               rev_argv_push(sha1, "^%s");
+               sha1_array_push(&good_revs, sha1);
        } else if (!prefixcmp(refname, "skip-")) {
-               ALLOC_GROW(skipped_revs.sha1, skipped_revs.sha1_nr + 1,
-                          skipped_revs.sha1_alloc);
-               hashcpy(skipped_revs.sha1[skipped_revs.sha1_nr++], sha1);
+               sha1_array_push(&skipped_revs, sha1);
        }
 
        return 0;
@@ -524,16 +529,23 @@ struct commit_list *filter_skipped(struct commit_list *list,
 
 static void bisect_rev_setup(struct rev_info *revs, const char *prefix)
 {
+       int i;
+
        init_revisions(revs, prefix);
        revs->abbrev = 0;
        revs->commit_format = CMIT_FMT_UNSPECIFIED;
 
+       if (read_bisect_refs())
+               die("reading bisect refs failed");
+
        /* argv[0] will be ignored by setup_revisions */
        ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
        rev_argv[rev_argv_nr++] = xstrdup("bisect_rev_setup");
 
-       if (read_bisect_refs())
-               die("reading bisect refs failed");
+       rev_argv_push(current_bad_sha1, "%s");
+
+       for (i = 0; i < good_revs.sha1_nr; i++)
+               rev_argv_push(good_revs.sha1[i], "^%s");
 
        ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
        rev_argv[rev_argv_nr++] = xstrdup("--");