#include "commit.h"
#include "diff.h"
#include "revision.h"
+#include "refs.h"
+#include "list-objects.h"
+#include "quote.h"
+#include "sha1-lookup.h"
#include "bisect.h"
static unsigned char (*skipped_sha1)[20];
static int skipped_sha1_nr;
+static int skipped_sha1_alloc;
+
+static const char **rev_argv;
+static int rev_argv_nr;
+static int rev_argv_alloc;
/* bits #0-15 in revision.h */
return best;
}
+static int register_ref(const char *refname, const unsigned char *sha1,
+ int flags, void *cb_data)
+{
+ if (!strcmp(refname, "bad")) {
+ ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
+ rev_argv[rev_argv_nr++] = xstrdup(sha1_to_hex(sha1));
+ } else if (!prefixcmp(refname, "good-")) {
+ const char *hex = sha1_to_hex(sha1);
+ char *good = xmalloc(strlen(hex) + 2);
+ *good = '^';
+ memcpy(good + 1, hex, strlen(hex) + 1);
+ ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
+ rev_argv[rev_argv_nr++] = good;
+ } else if (!prefixcmp(refname, "skip-")) {
+ ALLOC_GROW(skipped_sha1, skipped_sha1_nr + 1,
+ skipped_sha1_alloc);
+ hashcpy(skipped_sha1[skipped_sha1_nr++], sha1);
+ }
+
+ return 0;
+}
+
+static int read_bisect_refs(void)
+{
+ return for_each_ref_in("refs/bisect/", register_ref, NULL);
+}
+
+void read_bisect_paths(void)
+{
+ struct strbuf str = STRBUF_INIT;
+ const char *filename = git_path("BISECT_NAMES");
+ FILE *fp = fopen(filename, "r");
+
+ if (!fp)
+ die("Could not open file '%s': %s", filename, strerror(errno));
+
+ while (strbuf_getline(&str, fp, '\n') != EOF) {
+ char *quoted;
+ int res;
+
+ strbuf_trim(&str);
+ quoted = strbuf_detach(&str, NULL);
+ res = sq_dequote_to_argv(quoted, &rev_argv,
+ &rev_argv_nr, &rev_argv_alloc);
+ if (res)
+ die("Badly quoted content in file '%s': %s",
+ filename, quoted);
+ }
+
+ strbuf_release(&str);
+ fclose(fp);
+}
+
static int skipcmp(const void *a, const void *b)
{
return hashcmp(a, b);
qsort(skipped_sha1, skipped_sha1_nr, sizeof(*skipped_sha1), skipcmp);
}
+static const unsigned char *skipped_sha1_access(size_t index, void *table)
+{
+ unsigned char (*skipped)[20] = table;
+ return skipped[index];
+}
+
static int lookup_skipped(unsigned char *sha1)
{
- int lo, hi;
- lo = 0;
- hi = skipped_sha1_nr;
- while (lo < hi) {
- int mi = (lo + hi) / 2;
- int cmp = hashcmp(sha1, skipped_sha1[mi]);
- if (!cmp)
- return mi;
- if (cmp < 0)
- hi = mi;
- else
- lo = mi + 1;
- }
- return -lo - 1;
+ return sha1_pos(sha1, skipped_sha1, skipped_sha1_nr,
+ skipped_sha1_access);
}
struct commit_list *filter_skipped(struct commit_list *list,
return filtered;
}
+
+static void bisect_rev_setup(struct rev_info *revs, const char *prefix)
+{
+ init_revisions(revs, prefix);
+ revs->abbrev = 0;
+ revs->commit_format = CMIT_FMT_UNSPECIFIED;
+
+ /* 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");
+
+ ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
+ rev_argv[rev_argv_nr++] = xstrdup("--");
+
+ read_bisect_paths();
+
+ ALLOC_GROW(rev_argv, rev_argv_nr + 1, rev_argv_alloc);
+ rev_argv[rev_argv_nr++] = NULL;
+
+ setup_revisions(rev_argv_nr, rev_argv, revs, NULL);
+
+ revs->limited = 1;
+}
+
+int bisect_next_vars(const char *prefix)
+{
+ struct rev_info revs;
+ struct rev_list_info info;
+ int reaches = 0, all = 0;
+
+ memset(&info, 0, sizeof(info));
+ info.revs = &revs;
+ info.bisect_show_flags = BISECT_SHOW_TRIED | BISECT_SHOW_STRINGED;
+
+ bisect_rev_setup(&revs, prefix);
+
+ if (prepare_revision_walk(&revs))
+ die("revision walk setup failed");
+ if (revs.tree_objects)
+ mark_edges_uninteresting(revs.commits, &revs, NULL);
+
+ revs.commits = find_bisection(revs.commits, &reaches, &all,
+ !!skipped_sha1_nr);
+
+ return show_bisect_vars(&info, reaches, all);
+}