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-rw-r--r--revision.c155
1 files changed, 145 insertions, 10 deletions
diff --git a/revision.c b/revision.c
index 3ba6d991f6..7e82efd932 100644
--- a/revision.c
+++ b/revision.c
@@ -12,6 +12,7 @@
#include "patch-ids.h"
#include "decorate.h"
#include "log-tree.h"
+#include "string-list.h"
volatile show_early_output_fn_t show_early_output;
@@ -547,6 +548,9 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
right_count++;
}
+ if (!left_count || !right_count)
+ return;
+
left_first = left_count < right_count;
init_patch_ids(&ids);
if (revs->diffopt.nr_paths) {
@@ -642,6 +646,93 @@ static int still_interesting(struct commit_list *src, unsigned long date, int sl
return slop-1;
}
+/*
+ * "rev-list --ancestry-path A..B" computes commits that are ancestors
+ * of B but not ancestors of A but further limits the result to those
+ * that are descendants of A. This takes the list of bottom commits and
+ * the result of "A..B" without --ancestry-path, and limits the latter
+ * further to the ones that can reach one of the commits in "bottom".
+ */
+static void limit_to_ancestry(struct commit_list *bottom, struct commit_list *list)
+{
+ struct commit_list *p;
+ struct commit_list *rlist = NULL;
+ int made_progress;
+
+ /*
+ * Reverse the list so that it will be likely that we would
+ * process parents before children.
+ */
+ for (p = list; p; p = p->next)
+ commit_list_insert(p->item, &rlist);
+
+ for (p = bottom; p; p = p->next)
+ p->item->object.flags |= TMP_MARK;
+
+ /*
+ * Mark the ones that can reach bottom commits in "list",
+ * in a bottom-up fashion.
+ */
+ do {
+ made_progress = 0;
+ for (p = rlist; p; p = p->next) {
+ struct commit *c = p->item;
+ struct commit_list *parents;
+ if (c->object.flags & (TMP_MARK | UNINTERESTING))
+ continue;
+ for (parents = c->parents;
+ parents;
+ parents = parents->next) {
+ if (!(parents->item->object.flags & TMP_MARK))
+ continue;
+ c->object.flags |= TMP_MARK;
+ made_progress = 1;
+ break;
+ }
+ }
+ } while (made_progress);
+
+ /*
+ * NEEDSWORK: decide if we want to remove parents that are
+ * not marked with TMP_MARK from commit->parents for commits
+ * in the resulting list. We may not want to do that, though.
+ */
+
+ /*
+ * The ones that are not marked with TMP_MARK are uninteresting
+ */
+ for (p = list; p; p = p->next) {
+ struct commit *c = p->item;
+ if (c->object.flags & TMP_MARK)
+ continue;
+ c->object.flags |= UNINTERESTING;
+ }
+
+ /* We are done with the TMP_MARK */
+ for (p = list; p; p = p->next)
+ p->item->object.flags &= ~TMP_MARK;
+ for (p = bottom; p; p = p->next)
+ p->item->object.flags &= ~TMP_MARK;
+ free_commit_list(rlist);
+}
+
+/*
+ * Before walking the history, keep the set of "negative" refs the
+ * caller has asked to exclude.
+ *
+ * This is used to compute "rev-list --ancestry-path A..B", as we need
+ * to filter the result of "A..B" further to the ones that can actually
+ * reach A.
+ */
+static struct commit_list *collect_bottom_commits(struct commit_list *list)
+{
+ struct commit_list *elem, *bottom = NULL;
+ for (elem = list; elem; elem = elem->next)
+ if (elem->item->object.flags & UNINTERESTING)
+ commit_list_insert(elem->item, &bottom);
+ return bottom;
+}
+
static int limit_list(struct rev_info *revs)
{
int slop = SLOP;
@@ -649,6 +740,13 @@ static int limit_list(struct rev_info *revs)
struct commit_list *list = revs->commits;
struct commit_list *newlist = NULL;
struct commit_list **p = &newlist;
+ struct commit_list *bottom = NULL;
+
+ if (revs->ancestry_path) {
+ bottom = collect_bottom_commits(list);
+ if (!bottom)
+ die("--ancestry-path given but there are no bottom commits");
+ }
while (list) {
struct commit_list *entry = list;
@@ -690,6 +788,11 @@ static int limit_list(struct rev_info *revs)
if (revs->cherry_pick)
cherry_pick_list(newlist, revs);
+ if (bottom) {
+ limit_to_ancestry(bottom, newlist);
+ free_commit_list(bottom);
+ }
+
revs->commits = newlist;
return 0;
}
@@ -823,6 +926,7 @@ void init_revisions(struct rev_info *revs, const char *prefix)
revs->grep_filter.status_only = 1;
revs->grep_filter.pattern_tail = &(revs->grep_filter.pattern_list);
+ revs->grep_filter.header_tail = &(revs->grep_filter.header_list);
revs->grep_filter.regflags = REG_NEWLINE;
diff_setup(&revs->diffopt);
@@ -1058,18 +1162,22 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
if (!prefixcmp(arg, "--max-count=")) {
revs->max_count = atoi(arg + 12);
+ revs->no_walk = 0;
} else if (!prefixcmp(arg, "--skip=")) {
revs->skip_count = atoi(arg + 7);
} else if ((*arg == '-') && isdigit(arg[1])) {
/* accept -<digit>, like traditional "head" */
revs->max_count = atoi(arg + 1);
+ revs->no_walk = 0;
} else if (!strcmp(arg, "-n")) {
if (argc <= 1)
return error("-n requires an argument");
revs->max_count = atoi(argv[1]);
+ revs->no_walk = 0;
return 2;
} else if (!prefixcmp(arg, "-n")) {
revs->max_count = atoi(arg + 2);
+ revs->no_walk = 0;
} else if (!prefixcmp(arg, "--max-age=")) {
revs->max_age = atoi(arg + 10);
} else if (!prefixcmp(arg, "--since=")) {
@@ -1084,6 +1192,10 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->min_age = approxidate(arg + 8);
} else if (!strcmp(arg, "--first-parent")) {
revs->first_parent_only = 1;
+ } else if (!strcmp(arg, "--ancestry-path")) {
+ revs->ancestry_path = 1;
+ revs->simplify_history = 0;
+ revs->limited = 1;
} else if (!strcmp(arg, "-g") || !strcmp(arg, "--walk-reflogs")) {
init_reflog_walk(&revs->reflog_info);
} else if (!strcmp(arg, "--default")) {
@@ -1141,6 +1253,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->boundary = 1;
} else if (!strcmp(arg, "--left-right")) {
revs->left_right = 1;
+ } else if (!strcmp(arg, "--count")) {
+ revs->count = 1;
} else if (!strcmp(arg, "--cherry-pick")) {
revs->cherry_pick = 1;
revs->limited = 1;
@@ -1187,9 +1301,29 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
} else if (!strcmp(arg, "--show-notes")) {
revs->show_notes = 1;
revs->show_notes_given = 1;
+ } else if (!prefixcmp(arg, "--show-notes=")) {
+ struct strbuf buf = STRBUF_INIT;
+ revs->show_notes = 1;
+ revs->show_notes_given = 1;
+ if (!revs->notes_opt.extra_notes_refs)
+ revs->notes_opt.extra_notes_refs = xcalloc(1, sizeof(struct string_list));
+ if (!prefixcmp(arg+13, "refs/"))
+ /* happy */;
+ else if (!prefixcmp(arg+13, "notes/"))
+ strbuf_addstr(&buf, "refs/");
+ else
+ strbuf_addstr(&buf, "refs/notes/");
+ strbuf_addstr(&buf, arg+13);
+ string_list_append(revs->notes_opt.extra_notes_refs,
+ strbuf_detach(&buf, NULL));
} else if (!strcmp(arg, "--no-notes")) {
revs->show_notes = 0;
revs->show_notes_given = 1;
+ } else if (!strcmp(arg, "--standard-notes")) {
+ revs->show_notes_given = 1;
+ revs->notes_opt.suppress_default_notes = 0;
+ } else if (!strcmp(arg, "--no-standard-notes")) {
+ revs->notes_opt.suppress_default_notes = 1;
} else if (!strcmp(arg, "--oneline")) {
revs->verbose_header = 1;
get_commit_format("oneline", revs);
@@ -1328,9 +1462,9 @@ static void append_prune_data(const char ***prune_data, const char **av)
* Returns the number of arguments left that weren't recognized
* (which are also moved to the head of the argument list)
*/
-int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def)
+int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt)
{
- int i, flags, left, seen_dashdash, read_from_stdin;
+ int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0;
const char **prune_data = NULL;
/* First, search for "--" */
@@ -1456,16 +1590,20 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
append_prune_data(&prune_data, argv + i);
break;
}
+ else
+ got_rev_arg = 1;
}
if (prune_data)
revs->prune_data = get_pathspec(revs->prefix, prune_data);
if (revs->def == NULL)
- revs->def = def;
+ revs->def = opt ? opt->def : NULL;
+ if (opt && opt->tweak)
+ opt->tweak(revs, opt);
if (revs->show_merge)
prepare_show_merge(revs);
- if (revs->def && !revs->pending.nr) {
+ if (revs->def && !revs->pending.nr && !got_rev_arg) {
unsigned char sha1[20];
struct object *object;
unsigned mode;
@@ -1496,11 +1634,8 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
if (!revs->full_diff)
diff_tree_setup_paths(revs->prune_data, &revs->diffopt);
}
- if (revs->combine_merges) {
+ if (revs->combine_merges)
revs->ignore_merges = 0;
- if (revs->dense_combined_merges && !revs->diffopt.output_format)
- revs->diffopt.output_format = DIFF_FORMAT_PATCH;
- }
revs->diffopt.abbrev = revs->abbrev;
if (diff_setup_done(&revs->diffopt) < 0)
die("diff_setup_done failed");
@@ -1755,7 +1890,7 @@ int prepare_revision_walk(struct rev_info *revs)
enum rewrite_result {
rewrite_one_ok,
rewrite_one_noparents,
- rewrite_one_error,
+ rewrite_one_error
};
static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
@@ -1801,7 +1936,7 @@ static int rewrite_parents(struct rev_info *revs, struct commit *commit)
static int commit_match(struct commit *commit, struct rev_info *opt)
{
- if (!opt->grep_filter.pattern_list)
+ if (!opt->grep_filter.pattern_list && !opt->grep_filter.header_list)
return 1;
return grep_buffer(&opt->grep_filter,
NULL, /* we say nothing, not even filename */
generated by cgit v1.2.3 (git 2.46.0) at 2025-11-28 10:33:28 +0000