static struct stat shallow_stat;
static char *alternate_shallow_file;
-void set_alternate_shallow_file(const char *path)
+void set_alternate_shallow_file(const char *path, int override)
{
if (is_shallow != -1)
die("BUG: is_repository_shallow must not be called before set_alternate_shallow_file");
+ if (alternate_shallow_file && !override)
+ return;
free(alternate_shallow_file);
alternate_shallow_file = path ? xstrdup(path) : NULL;
}
struct commit_list *result = NULL;
struct object_array stack = OBJECT_ARRAY_INIT;
struct commit *commit = NULL;
+ struct commit_graft *graft;
while (commit || i < heads->nr || stack.nr) {
struct commit_list *p;
cur_depth = *(int *)commit->util;
}
}
- if (parse_commit(commit))
- die("invalid commit");
+ parse_commit_or_die(commit);
cur_depth++;
- if (cur_depth >= depth) {
+ if ((depth != INFINITE_DEPTH && cur_depth >= depth) ||
+ (is_repository_shallow() && !commit->parents &&
+ (graft = lookup_commit_graft(commit->object.sha1)) != NULL &&
+ graft->nr_parent < 0)) {
commit_list_insert(commit, &result);
commit->object.flags |= shallow_flag;
commit = NULL;
die("shallow file was changed during fetch");
}
+#define SEEN_ONLY 1
+#define VERBOSE 2
+
struct write_shallow_data {
struct strbuf *out;
int use_pack_protocol;
int count;
+ unsigned flags;
};
static int write_one_shallow(const struct commit_graft *graft, void *cb_data)
const char *hex = sha1_to_hex(graft->sha1);
if (graft->nr_parent != -1)
return 0;
+ if (data->flags & SEEN_ONLY) {
+ struct commit *c = lookup_commit(graft->sha1);
+ if (!c || !(c->object.flags & SEEN)) {
+ if (data->flags & VERBOSE)
+ printf("Removing %s from .git/shallow\n",
+ sha1_to_hex(c->object.sha1));
+ return 0;
+ }
+ }
data->count++;
if (data->use_pack_protocol)
packet_buf_write(data->out, "shallow %s", hex);
return 0;
}
-int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
- const struct sha1_array *extra)
+static int write_shallow_commits_1(struct strbuf *out, int use_pack_protocol,
+ const struct sha1_array *extra,
+ unsigned flags)
{
struct write_shallow_data data;
int i;
data.out = out;
data.use_pack_protocol = use_pack_protocol;
data.count = 0;
+ data.flags = flags;
for_each_commit_graft(write_one_shallow, &data);
if (!extra)
return data.count;
return data.count;
}
+int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
+ const struct sha1_array *extra)
+{
+ return write_shallow_commits_1(out, use_pack_protocol, extra, 0);
+}
+
char *setup_temporary_shallow(const struct sha1_array *extra)
{
struct strbuf sb = STRBUF_INIT;
for_each_commit_graft(advertise_shallow_grafts_cb, &fd);
}
+/*
+ * mark_reachable_objects() should have been run prior to this and all
+ * reachable commits marked as "SEEN".
+ */
+void prune_shallow(int show_only)
+{
+ static struct lock_file shallow_lock;
+ struct strbuf sb = STRBUF_INIT;
+ int fd;
+
+ if (show_only) {
+ write_shallow_commits_1(&sb, 0, NULL, SEEN_ONLY | VERBOSE);
+ strbuf_release(&sb);
+ return;
+ }
+ check_shallow_file_for_update();
+ fd = hold_lock_file_for_update(&shallow_lock, git_path("shallow"),
+ LOCK_DIE_ON_ERROR);
+ if (write_shallow_commits_1(&sb, 0, NULL, SEEN_ONLY)) {
+ if (write_in_full(fd, sb.buf, sb.len) != sb.len)
+ die_errno("failed to write to %s",
+ shallow_lock.filename);
+ commit_lock_file(&shallow_lock);
+ } else {
+ unlink(git_path("shallow"));
+ rollback_lock_file(&shallow_lock);
+ }
+ strbuf_release(&sb);
+}
+
#define TRACE_KEY "GIT_TRACE_SHALLOW"
/*
info->nr_theirs = dst;
}
-/* Step 5, remove non-existent ones in "ours" in the pack */
-void remove_nonexistent_ours_in_pack(struct shallow_info *info,
- struct packed_git *p)
-{
- unsigned char (*sha1)[20] = info->shallow->sha1;
- int i, dst;
- trace_printf_key(TRACE_KEY, "shallow: remove_nonexistent_ours_in_pack\n");
- for (i = dst = 0; i < info->nr_ours; i++) {
- if (i != dst)
- info->ours[dst] = info->ours[i];
- if (find_pack_entry_one(sha1[info->ours[i]], p))
- dst++;
- }
- info->nr_ours = dst;
-}
-
define_commit_slab(ref_bitmap, uint32_t *);
struct paint_info {
free(ca.commits);
}
+
+/* (Delayed) step 7, reachability test at commit level */
+int delayed_reachability_test(struct shallow_info *si, int c)
+{
+ if (si->need_reachability_test[c]) {
+ struct commit *commit = lookup_commit(si->shallow->sha1[c]);
+
+ if (!si->commits) {
+ struct commit_array ca;
+ memset(&ca, 0, sizeof(ca));
+ head_ref(add_ref, &ca);
+ for_each_ref(add_ref, &ca);
+ si->commits = ca.commits;
+ si->nr_commits = ca.nr;
+ }
+
+ si->reachable[c] = in_merge_bases_many(commit,
+ si->nr_commits,
+ si->commits);
+ si->need_reachability_test[c] = 0;
+ }
+ return si->reachable[c];
+}