Christian CouderThis is Junio's patch with some stuff to make --bisect-all compatible with --bisect-vars.
This option makes it possible to see all the potential bisection points. The best ones are displayed first.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> --- builtin-rev-list.c | 98 +++++++++++++++++++++++++++++++++++++++++++++------- log-tree.c | 2 +- log-tree.h | 1 + 3 files changed, 87 insertions(+), 14 deletions(-)
Show changes to 3 files +87 −14
builtin-rev-list.c, log-tree.c, log-tree.h
diff --git a/builtin-rev-list.c b/builtin-rev-list.c index 33726b8..0943b76 100644 --- a/builtin-rev-list.c +++ b/builtin-rev-list.c @@ -9,6 +9,7 @@ #include "revision.h" #include "list-objects.h" #include "builtin.h" +#include "log-tree.h" /* bits #0-15 in revision.h */ @@ -39,6 +40,7 @@ static const char rev_list_usage[] = " special purpose:\n" " --bisect\n" " --bisect-vars" +" --bisect-all" ; static struct rev_info revs; @@ -74,6 +76,7 @@ static void show_commit(struct commit *commit) parents = parents->next; } } + show_decorations(commit); if (revs.commit_format == CMIT_FMT_ONELINE) putchar(' '); else @@ -278,6 +281,57 @@ static struct commit_list *best_bisection(struct commit_list *list, int nr) return best; } +struct commit_dist { + struct commit *commit; + int distance; +}; + +static int compare_commit_dist(const void *a_, const void *b_) +{ + struct commit_dist *a, *b; + + a = (struct commit_dist *)a_; + b = (struct commit_dist *)b_; + if (a->distance != b->distance) + return b->distance - a->distance; /* desc sort */ + return hashcmp(a->commit->object.sha1, b->commit->object.sha1); +} + +static struct commit_list *best_bisection_sorted(struct commit_list *list, int nr) +{ + struct commit_list *p; + struct commit_dist *array = xcalloc(nr, sizeof(*array)); + int cnt, i; + + for (p = list, cnt = 0; p; p = p->next) { + int distance; + unsigned flags = p->item->object.flags; + + if (revs.prune_fn && !(flags & TREECHANGE)) + continue; + distance = weight(p); + if (nr - distance < distance) + distance = nr - distance; + array[cnt].commit = p->item; + array[cnt].distance = distance; + cnt++; + } + qsort(array, cnt, sizeof(*array), compare_commit_dist); + for (p = list, i = 0; i < cnt; i++) { + struct name_decoration *r = xmalloc(sizeof(*r) + 100); + struct object *obj = &(array[i].commit->object); + + sprintf(r->name, "dist=%d", array[i].distance); + r->next = add_decoration(&name_decoration, obj, r); + p->item = array[i].commit; + p = p->next; + } + if (p) + p->next = NULL; + free(array); + return list; +} + /* * zero or positive weight is the number of interesting commits it can * reach, including itself. Especially, weight = 0 means it does not @@ -292,7 +346,8 @@ static struct commit_list *best_bisection(struct commit_list *list, int nr) * or positive distance. */ static struct commit_list *do_find_bisection(struct commit_list *list, - int nr, int *weights) + int nr, int *weights, + int find_all) { int n, counted; struct commit_list *p; @@ -351,7 +406,7 @@ static struct commit_list *do_find_bisection(struct commit_list *list, clear_distance(list); /* Does it happen to be at exactly half-way? */ - if (halfway(p, nr)) + if (!find_all && halfway(p, nr)) return p; counted++; } @@ -389,19 +444,22 @@ static struct commit_list *do_find_bisection(struct commit_list *list, weight_set(p, weight(q)); /* Does it happen to be at exactly half-way? */ - if (halfway(p, nr)) + if (!find_all && halfway(p, nr)) return p; } } show_list("bisection 2 counted all", counted, nr, list); - /* Then find the best one */ - return best_bisection(list, nr); + if (!find_all) + return best_bisection(list, nr); + else + return best_bisection_sorted(list, nr); } static struct commit_list *find_bisection(struct commit_list *list, - int *reaches, int *all) + int *reaches, int *all, + int find_all) { int nr, on_list; struct commit_list *p, *best, *next, *last; @@ -434,14 +492,13 @@ static struct commit_list *find_bisection(struct commit_list *list, weights = xcalloc(on_list, sizeof(*weights)); /* Do the real work of finding bisection commit. */ - best = do_find_bisection(list, nr, weights); - + best = do_find_bisection(list, nr, weights, find_all); if (best) { - best->next = NULL; + if (!find_all) + best->next = NULL; *reaches = weight(best); } free(weights); - return best; } @@ -468,6 +525,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) int i; int read_from_stdin = 0; int bisect_show_vars = 0; + int bisect_find_all = 0; git_config(git_default_config); init_revisions(&revs, prefix); @@ -490,6 +548,11 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) bisect_list = 1; continue; } + if (!strcmp(arg, "--bisect-all")) { + bisect_list = 1; + bisect_find_all = 1; + continue; + } if (!strcmp(arg, "--bisect-vars")) { bisect_list = 1; bisect_show_vars = 1; @@ -536,9 +599,11 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) if (bisect_list) { int reaches = reaches, all = all; - revs.commits = find_bisection(revs.commits, &reaches, &all); + revs.commits = find_bisection(revs.commits, &reaches, &all, + bisect_find_all); if (bisect_show_vars) { int cnt; + char hex[41]; if (!revs.commits) return 1; /* @@ -550,15 +615,22 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) * A bisect set of size N has (N-1) commits further * to test, as we already know one bad one. */ - cnt = all-reaches; + cnt = all - reaches; if (cnt < reaches) cnt = reaches; + strcpy(hex, sha1_to_hex(revs.commits->item->object.sha1)); + + if (bisect_find_all) { + traverse_commit_list(&revs, show_commit, show_object); + printf("------\n"); + } + printf("bisect_rev=%s\n" "bisect_nr=%d\n" "bisect_good=%d\n" "bisect_bad=%d\n" "bisect_all=%d\n", - sha1_to_hex(revs.commits->item->object.sha1), + hex, cnt - 1, all - reaches - 1, reaches - 1, diff --git a/log-tree.c b/log-tree.c index 2319154..f766758 100644 --- a/log-tree.c +++ b/log-tree.c @@ -15,7 +15,7 @@ static void show_parents(struct commit *commit, int abbrev) } } -static void show_decorations(struct commit *commit) +void show_decorations(struct commit *commit) { const char *prefix; struct name_decoration *decoration; diff --git a/log-tree.h b/log-tree.h index e82b56a..b33f7cd 100644 --- a/log-tree.h +++ b/log-tree.h @@ -12,5 +12,6 @@ int log_tree_diff_flush(struct rev_info *); int log_tree_commit(struct rev_info *, struct commit *); int log_tree_opt_parse(struct rev_info *, const char **, int); void show_log(struct rev_info *opt, const char *sep); +void show_decorations(struct commit *commit); #endif
-- 1.5.3.4.208.g996ad
