diff options
Diffstat (limited to 'third_party/git/shallow.c')
| -rw-r--r-- | third_party/git/shallow.c | 815 |
1 files changed, 0 insertions, 815 deletions
diff --git a/third_party/git/shallow.c b/third_party/git/shallow.c deleted file mode 100644 index 91b9e1073c9f..000000000000 --- a/third_party/git/shallow.c +++ /dev/null @@ -1,815 +0,0 @@ -#include "cache.h" -#include "repository.h" -#include "tempfile.h" -#include "lockfile.h" -#include "object-store.h" -#include "commit.h" -#include "tag.h" -#include "pkt-line.h" -#include "remote.h" -#include "refs.h" -#include "oid-array.h" -#include "diff.h" -#include "revision.h" -#include "commit-slab.h" -#include "list-objects.h" -#include "commit-reach.h" -#include "shallow.h" - -void set_alternate_shallow_file(struct repository *r, const char *path, int override) -{ - if (r->parsed_objects->is_shallow != -1) - BUG("is_repository_shallow must not be called before set_alternate_shallow_file"); - if (r->parsed_objects->alternate_shallow_file && !override) - return; - free(r->parsed_objects->alternate_shallow_file); - r->parsed_objects->alternate_shallow_file = xstrdup_or_null(path); -} - -int register_shallow(struct repository *r, const struct object_id *oid) -{ - struct commit_graft *graft = - xmalloc(sizeof(struct commit_graft)); - struct commit *commit = lookup_commit(the_repository, oid); - - oidcpy(&graft->oid, oid); - graft->nr_parent = -1; - if (commit && commit->object.parsed) - commit->parents = NULL; - return register_commit_graft(r, graft, 0); -} - -int unregister_shallow(const struct object_id *oid) -{ - int pos = commit_graft_pos(the_repository, oid->hash); - if (pos < 0) - return -1; - if (pos + 1 < the_repository->parsed_objects->grafts_nr) - MOVE_ARRAY(the_repository->parsed_objects->grafts + pos, - the_repository->parsed_objects->grafts + pos + 1, - the_repository->parsed_objects->grafts_nr - pos - 1); - the_repository->parsed_objects->grafts_nr--; - return 0; -} - -int is_repository_shallow(struct repository *r) -{ - FILE *fp; - char buf[1024]; - const char *path = r->parsed_objects->alternate_shallow_file; - - if (r->parsed_objects->is_shallow >= 0) - return r->parsed_objects->is_shallow; - - if (!path) - path = git_path_shallow(r); - /* - * fetch-pack sets '--shallow-file ""' as an indicator that no - * shallow file should be used. We could just open it and it - * will likely fail. But let's do an explicit check instead. - */ - if (!*path || (fp = fopen(path, "r")) == NULL) { - stat_validity_clear(r->parsed_objects->shallow_stat); - r->parsed_objects->is_shallow = 0; - return r->parsed_objects->is_shallow; - } - stat_validity_update(r->parsed_objects->shallow_stat, fileno(fp)); - r->parsed_objects->is_shallow = 1; - - while (fgets(buf, sizeof(buf), fp)) { - struct object_id oid; - if (get_oid_hex(buf, &oid)) - die("bad shallow line: %s", buf); - register_shallow(r, &oid); - } - fclose(fp); - return r->parsed_objects->is_shallow; -} - -static void reset_repository_shallow(struct repository *r) -{ - r->parsed_objects->is_shallow = -1; - stat_validity_clear(r->parsed_objects->shallow_stat); -} - -int commit_shallow_file(struct repository *r, struct shallow_lock *lk) -{ - int res = commit_lock_file(&lk->lock); - reset_repository_shallow(r); - return res; -} - -void rollback_shallow_file(struct repository *r, struct shallow_lock *lk) -{ - rollback_lock_file(&lk->lock); - reset_repository_shallow(r); -} - -/* - * TODO: use "int" elemtype instead of "int *" when/if commit-slab - * supports a "valid" flag. - */ -define_commit_slab(commit_depth, int *); -static void free_depth_in_slab(int **ptr) -{ - FREE_AND_NULL(*ptr); -} -struct commit_list *get_shallow_commits(struct object_array *heads, int depth, - int shallow_flag, int not_shallow_flag) -{ - int i = 0, cur_depth = 0; - struct commit_list *result = NULL; - struct object_array stack = OBJECT_ARRAY_INIT; - struct commit *commit = NULL; - struct commit_graft *graft; - struct commit_depth depths; - - init_commit_depth(&depths); - while (commit || i < heads->nr || stack.nr) { - struct commit_list *p; - if (!commit) { - if (i < heads->nr) { - int **depth_slot; - commit = (struct commit *) - deref_tag(the_repository, - heads->objects[i++].item, - NULL, 0); - if (!commit || commit->object.type != OBJ_COMMIT) { - commit = NULL; - continue; - } - depth_slot = commit_depth_at(&depths, commit); - if (!*depth_slot) - *depth_slot = xmalloc(sizeof(int)); - **depth_slot = 0; - cur_depth = 0; - } else { - commit = (struct commit *) - object_array_pop(&stack); - cur_depth = **commit_depth_at(&depths, commit); - } - } - parse_commit_or_die(commit); - cur_depth++; - if ((depth != INFINITE_DEPTH && cur_depth >= depth) || - (is_repository_shallow(the_repository) && !commit->parents && - (graft = lookup_commit_graft(the_repository, &commit->object.oid)) != NULL && - graft->nr_parent < 0)) { - commit_list_insert(commit, &result); - commit->object.flags |= shallow_flag; - commit = NULL; - continue; - } - commit->object.flags |= not_shallow_flag; - for (p = commit->parents, commit = NULL; p; p = p->next) { - int **depth_slot = commit_depth_at(&depths, p->item); - if (!*depth_slot) { - *depth_slot = xmalloc(sizeof(int)); - **depth_slot = cur_depth; - } else { - if (cur_depth >= **depth_slot) - continue; - **depth_slot = cur_depth; - } - if (p->next) - add_object_array(&p->item->object, - NULL, &stack); - else { - commit = p->item; - cur_depth = **commit_depth_at(&depths, commit); - } - } - } - deep_clear_commit_depth(&depths, free_depth_in_slab); - - return result; -} - -static void show_commit(struct commit *commit, void *data) -{ - commit_list_insert(commit, data); -} - -/* - * Given rev-list arguments, run rev-list. All reachable commits - * except border ones are marked with not_shallow_flag. Border commits - * are marked with shallow_flag. The list of border/shallow commits - * are also returned. - */ -struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av, - int shallow_flag, - int not_shallow_flag) -{ - struct commit_list *result = NULL, *p; - struct commit_list *not_shallow_list = NULL; - struct rev_info revs; - int both_flags = shallow_flag | not_shallow_flag; - - /* - * SHALLOW (excluded) and NOT_SHALLOW (included) should not be - * set at this point. But better be safe than sorry. - */ - clear_object_flags(both_flags); - - is_repository_shallow(the_repository); /* make sure shallows are read */ - - repo_init_revisions(the_repository, &revs, NULL); - save_commit_buffer = 0; - setup_revisions(ac, av, &revs, NULL); - - if (prepare_revision_walk(&revs)) - die("revision walk setup failed"); - traverse_commit_list(&revs, show_commit, NULL, ¬_shallow_list); - - if (!not_shallow_list) - die("no commits selected for shallow requests"); - - /* Mark all reachable commits as NOT_SHALLOW */ - for (p = not_shallow_list; p; p = p->next) - p->item->object.flags |= not_shallow_flag; - - /* - * mark border commits SHALLOW + NOT_SHALLOW. - * We cannot clear NOT_SHALLOW right now. Imagine border - * commit A is processed first, then commit B, whose parent is - * A, later. If NOT_SHALLOW on A is cleared at step 1, B - * itself is considered border at step 2, which is incorrect. - */ - for (p = not_shallow_list; p; p = p->next) { - struct commit *c = p->item; - struct commit_list *parent; - - if (parse_commit(c)) - die("unable to parse commit %s", - oid_to_hex(&c->object.oid)); - - for (parent = c->parents; parent; parent = parent->next) - if (!(parent->item->object.flags & not_shallow_flag)) { - c->object.flags |= shallow_flag; - commit_list_insert(c, &result); - break; - } - } - free_commit_list(not_shallow_list); - - /* - * Now we can clean up NOT_SHALLOW on border commits. Having - * both flags set can confuse the caller. - */ - for (p = result; p; p = p->next) { - struct object *o = &p->item->object; - if ((o->flags & both_flags) == both_flags) - o->flags &= ~not_shallow_flag; - } - return result; -} - -static void check_shallow_file_for_update(struct repository *r) -{ - if (r->parsed_objects->is_shallow == -1) - BUG("shallow must be initialized by now"); - - if (!stat_validity_check(r->parsed_objects->shallow_stat, - git_path_shallow(r))) - die("shallow file has changed since we read it"); -} - -#define SEEN_ONLY 1 -#define VERBOSE 2 -#define QUICK 4 - -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) -{ - struct write_shallow_data *data = cb_data; - const char *hex = oid_to_hex(&graft->oid); - if (graft->nr_parent != -1) - return 0; - if (data->flags & QUICK) { - if (!has_object_file(&graft->oid)) - return 0; - } else if (data->flags & SEEN_ONLY) { - struct commit *c = lookup_commit(the_repository, &graft->oid); - if (!c || !(c->object.flags & SEEN)) { - if (data->flags & VERBOSE) - printf("Removing %s from .git/shallow\n", - oid_to_hex(&c->object.oid)); - return 0; - } - } - data->count++; - if (data->use_pack_protocol) - packet_buf_write(data->out, "shallow %s", hex); - else { - strbuf_addstr(data->out, hex); - strbuf_addch(data->out, '\n'); - } - return 0; -} - -static int write_shallow_commits_1(struct strbuf *out, int use_pack_protocol, - const struct oid_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; - for (i = 0; i < extra->nr; i++) { - strbuf_addstr(out, oid_to_hex(extra->oid + i)); - strbuf_addch(out, '\n'); - data.count++; - } - return data.count; -} - -int write_shallow_commits(struct strbuf *out, int use_pack_protocol, - const struct oid_array *extra) -{ - return write_shallow_commits_1(out, use_pack_protocol, extra, 0); -} - -const char *setup_temporary_shallow(const struct oid_array *extra) -{ - struct tempfile *temp; - struct strbuf sb = STRBUF_INIT; - - if (write_shallow_commits(&sb, 0, extra)) { - temp = xmks_tempfile(git_path("shallow_XXXXXX")); - - if (write_in_full(temp->fd, sb.buf, sb.len) < 0 || - close_tempfile_gently(temp) < 0) - die_errno("failed to write to %s", - get_tempfile_path(temp)); - strbuf_release(&sb); - return get_tempfile_path(temp); - } - /* - * is_repository_shallow() sees empty string as "no shallow - * file". - */ - return ""; -} - -void setup_alternate_shallow(struct shallow_lock *shallow_lock, - const char **alternate_shallow_file, - const struct oid_array *extra) -{ - struct strbuf sb = STRBUF_INIT; - int fd; - - fd = hold_lock_file_for_update(&shallow_lock->lock, - git_path_shallow(the_repository), - LOCK_DIE_ON_ERROR); - check_shallow_file_for_update(the_repository); - if (write_shallow_commits(&sb, 0, extra)) { - if (write_in_full(fd, sb.buf, sb.len) < 0) - die_errno("failed to write to %s", - get_lock_file_path(&shallow_lock->lock)); - *alternate_shallow_file = get_lock_file_path(&shallow_lock->lock); - } else - /* - * is_repository_shallow() sees empty string as "no - * shallow file". - */ - *alternate_shallow_file = ""; - strbuf_release(&sb); -} - -static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *cb) -{ - int fd = *(int *)cb; - if (graft->nr_parent == -1) - packet_write_fmt(fd, "shallow %s\n", oid_to_hex(&graft->oid)); - return 0; -} - -void advertise_shallow_grafts(int fd) -{ - if (!is_repository_shallow(the_repository)) - return; - 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", except when quick_prune is non-zero, - * in which case lines are excised from the shallow file if they refer to - * commits that do not exist (any longer). - */ -void prune_shallow(unsigned options) -{ - struct shallow_lock shallow_lock = SHALLOW_LOCK_INIT; - struct strbuf sb = STRBUF_INIT; - unsigned flags = SEEN_ONLY; - int fd; - - if (options & PRUNE_QUICK) - flags |= QUICK; - - if (options & PRUNE_SHOW_ONLY) { - flags |= VERBOSE; - write_shallow_commits_1(&sb, 0, NULL, flags); - strbuf_release(&sb); - return; - } - fd = hold_lock_file_for_update(&shallow_lock.lock, - git_path_shallow(the_repository), - LOCK_DIE_ON_ERROR); - check_shallow_file_for_update(the_repository); - if (write_shallow_commits_1(&sb, 0, NULL, flags)) { - if (write_in_full(fd, sb.buf, sb.len) < 0) - die_errno("failed to write to %s", - get_lock_file_path(&shallow_lock.lock)); - commit_shallow_file(the_repository, &shallow_lock); - } else { - unlink(git_path_shallow(the_repository)); - rollback_shallow_file(the_repository, &shallow_lock); - } - strbuf_release(&sb); -} - -struct trace_key trace_shallow = TRACE_KEY_INIT(SHALLOW); - -/* - * Step 1, split sender shallow commits into "ours" and "theirs" - * Step 2, clean "ours" based on .git/shallow - */ -void prepare_shallow_info(struct shallow_info *info, struct oid_array *sa) -{ - int i; - trace_printf_key(&trace_shallow, "shallow: prepare_shallow_info\n"); - memset(info, 0, sizeof(*info)); - info->shallow = sa; - if (!sa) - return; - ALLOC_ARRAY(info->ours, sa->nr); - ALLOC_ARRAY(info->theirs, sa->nr); - for (i = 0; i < sa->nr; i++) { - if (has_object_file(sa->oid + i)) { - struct commit_graft *graft; - graft = lookup_commit_graft(the_repository, - &sa->oid[i]); - if (graft && graft->nr_parent < 0) - continue; - info->ours[info->nr_ours++] = i; - } else - info->theirs[info->nr_theirs++] = i; - } -} - -void clear_shallow_info(struct shallow_info *info) -{ - free(info->ours); - free(info->theirs); -} - -/* Step 4, remove non-existent ones in "theirs" after getting the pack */ - -void remove_nonexistent_theirs_shallow(struct shallow_info *info) -{ - struct object_id *oid = info->shallow->oid; - int i, dst; - trace_printf_key(&trace_shallow, "shallow: remove_nonexistent_theirs_shallow\n"); - for (i = dst = 0; i < info->nr_theirs; i++) { - if (i != dst) - info->theirs[dst] = info->theirs[i]; - if (has_object_file(oid + info->theirs[i])) - dst++; - } - info->nr_theirs = dst; -} - -define_commit_slab(ref_bitmap, uint32_t *); - -#define POOL_SIZE (512 * 1024) - -struct paint_info { - struct ref_bitmap ref_bitmap; - unsigned nr_bits; - char **pools; - char *free, *end; - unsigned pool_count; -}; - -static uint32_t *paint_alloc(struct paint_info *info) -{ - unsigned nr = DIV_ROUND_UP(info->nr_bits, 32); - unsigned size = nr * sizeof(uint32_t); - void *p; - if (!info->pool_count || size > info->end - info->free) { - if (size > POOL_SIZE) - BUG("pool size too small for %d in paint_alloc()", - size); - info->pool_count++; - REALLOC_ARRAY(info->pools, info->pool_count); - info->free = xmalloc(POOL_SIZE); - info->pools[info->pool_count - 1] = info->free; - info->end = info->free + POOL_SIZE; - } - p = info->free; - info->free += size; - return p; -} - -/* - * Given a commit SHA-1, walk down to parents until either SEEN, - * UNINTERESTING or BOTTOM is hit. Set the id-th bit in ref_bitmap for - * all walked commits. - */ -static void paint_down(struct paint_info *info, const struct object_id *oid, - unsigned int id) -{ - unsigned int i, nr; - struct commit_list *head = NULL; - int bitmap_nr = DIV_ROUND_UP(info->nr_bits, 32); - size_t bitmap_size = st_mult(sizeof(uint32_t), bitmap_nr); - struct commit *c = lookup_commit_reference_gently(the_repository, oid, - 1); - uint32_t *tmp; /* to be freed before return */ - uint32_t *bitmap; - - if (!c) - return; - - tmp = xmalloc(bitmap_size); - bitmap = paint_alloc(info); - memset(bitmap, 0, bitmap_size); - bitmap[id / 32] |= (1U << (id % 32)); - commit_list_insert(c, &head); - while (head) { - struct commit_list *p; - struct commit *c = pop_commit(&head); - uint32_t **refs = ref_bitmap_at(&info->ref_bitmap, c); - - /* XXX check "UNINTERESTING" from pack bitmaps if available */ - if (c->object.flags & (SEEN | UNINTERESTING)) - continue; - else - c->object.flags |= SEEN; - - if (*refs == NULL) - *refs = bitmap; - else { - memcpy(tmp, *refs, bitmap_size); - for (i = 0; i < bitmap_nr; i++) - tmp[i] |= bitmap[i]; - if (memcmp(tmp, *refs, bitmap_size)) { - *refs = paint_alloc(info); - memcpy(*refs, tmp, bitmap_size); - } - } - - if (c->object.flags & BOTTOM) - continue; - - if (parse_commit(c)) - die("unable to parse commit %s", - oid_to_hex(&c->object.oid)); - - for (p = c->parents; p; p = p->next) { - if (p->item->object.flags & SEEN) - continue; - commit_list_insert(p->item, &head); - } - } - - nr = get_max_object_index(); - for (i = 0; i < nr; i++) { - struct object *o = get_indexed_object(i); - if (o && o->type == OBJ_COMMIT) - o->flags &= ~SEEN; - } - - free(tmp); -} - -static int mark_uninteresting(const char *refname, const struct object_id *oid, - int flags, void *cb_data) -{ - struct commit *commit = lookup_commit_reference_gently(the_repository, - oid, 1); - if (!commit) - return 0; - commit->object.flags |= UNINTERESTING; - mark_parents_uninteresting(commit); - return 0; -} - -static void post_assign_shallow(struct shallow_info *info, - struct ref_bitmap *ref_bitmap, - int *ref_status); -/* - * Step 6(+7), associate shallow commits with new refs - * - * info->ref must be initialized before calling this function. - * - * If used is not NULL, it's an array of info->shallow->nr - * bitmaps. The n-th bit set in the m-th bitmap if ref[n] needs the - * m-th shallow commit from info->shallow. - * - * If used is NULL, "ours" and "theirs" are updated. And if ref_status - * is not NULL it's an array of ref->nr ints. ref_status[i] is true if - * the ref needs some shallow commits from either info->ours or - * info->theirs. - */ -void assign_shallow_commits_to_refs(struct shallow_info *info, - uint32_t **used, int *ref_status) -{ - struct object_id *oid = info->shallow->oid; - struct oid_array *ref = info->ref; - unsigned int i, nr; - int *shallow, nr_shallow = 0; - struct paint_info pi; - - trace_printf_key(&trace_shallow, "shallow: assign_shallow_commits_to_refs\n"); - ALLOC_ARRAY(shallow, info->nr_ours + info->nr_theirs); - for (i = 0; i < info->nr_ours; i++) - shallow[nr_shallow++] = info->ours[i]; - for (i = 0; i < info->nr_theirs; i++) - shallow[nr_shallow++] = info->theirs[i]; - - /* - * Prepare the commit graph to track what refs can reach what - * (new) shallow commits. - */ - nr = get_max_object_index(); - for (i = 0; i < nr; i++) { - struct object *o = get_indexed_object(i); - if (!o || o->type != OBJ_COMMIT) - continue; - - o->flags &= ~(UNINTERESTING | BOTTOM | SEEN); - } - - memset(&pi, 0, sizeof(pi)); - init_ref_bitmap(&pi.ref_bitmap); - pi.nr_bits = ref->nr; - - /* - * "--not --all" to cut short the traversal if new refs - * connect to old refs. If not (e.g. force ref updates) it'll - * have to go down to the current shallow commits. - */ - head_ref(mark_uninteresting, NULL); - for_each_ref(mark_uninteresting, NULL); - - /* Mark potential bottoms so we won't go out of bound */ - for (i = 0; i < nr_shallow; i++) { - struct commit *c = lookup_commit(the_repository, - &oid[shallow[i]]); - c->object.flags |= BOTTOM; - } - - for (i = 0; i < ref->nr; i++) - paint_down(&pi, ref->oid + i, i); - - if (used) { - int bitmap_size = DIV_ROUND_UP(pi.nr_bits, 32) * sizeof(uint32_t); - memset(used, 0, sizeof(*used) * info->shallow->nr); - for (i = 0; i < nr_shallow; i++) { - const struct commit *c = lookup_commit(the_repository, - &oid[shallow[i]]); - uint32_t **map = ref_bitmap_at(&pi.ref_bitmap, c); - if (*map) - used[shallow[i]] = xmemdupz(*map, bitmap_size); - } - /* - * unreachable shallow commits are not removed from - * "ours" and "theirs". The user is supposed to run - * step 7 on every ref separately and not trust "ours" - * and "theirs" any more. - */ - } else - post_assign_shallow(info, &pi.ref_bitmap, ref_status); - - clear_ref_bitmap(&pi.ref_bitmap); - for (i = 0; i < pi.pool_count; i++) - free(pi.pools[i]); - free(pi.pools); - free(shallow); -} - -struct commit_array { - struct commit **commits; - int nr, alloc; -}; - -static int add_ref(const char *refname, const struct object_id *oid, - int flags, void *cb_data) -{ - struct commit_array *ca = cb_data; - ALLOC_GROW(ca->commits, ca->nr + 1, ca->alloc); - ca->commits[ca->nr] = lookup_commit_reference_gently(the_repository, - oid, 1); - if (ca->commits[ca->nr]) - ca->nr++; - return 0; -} - -static void update_refstatus(int *ref_status, int nr, uint32_t *bitmap) -{ - unsigned int i; - if (!ref_status) - return; - for (i = 0; i < nr; i++) - if (bitmap[i / 32] & (1U << (i % 32))) - ref_status[i]++; -} - -/* - * Step 7, reachability test on "ours" at commit level - */ -static void post_assign_shallow(struct shallow_info *info, - struct ref_bitmap *ref_bitmap, - int *ref_status) -{ - struct object_id *oid = info->shallow->oid; - struct commit *c; - uint32_t **bitmap; - int dst, i, j; - int bitmap_nr = DIV_ROUND_UP(info->ref->nr, 32); - struct commit_array ca; - - trace_printf_key(&trace_shallow, "shallow: post_assign_shallow\n"); - if (ref_status) - memset(ref_status, 0, sizeof(*ref_status) * info->ref->nr); - - /* Remove unreachable shallow commits from "theirs" */ - for (i = dst = 0; i < info->nr_theirs; i++) { - if (i != dst) - info->theirs[dst] = info->theirs[i]; - c = lookup_commit(the_repository, &oid[info->theirs[i]]); - bitmap = ref_bitmap_at(ref_bitmap, c); - if (!*bitmap) - continue; - for (j = 0; j < bitmap_nr; j++) - if (bitmap[0][j]) { - update_refstatus(ref_status, info->ref->nr, *bitmap); - dst++; - break; - } - } - info->nr_theirs = dst; - - memset(&ca, 0, sizeof(ca)); - head_ref(add_ref, &ca); - for_each_ref(add_ref, &ca); - - /* Remove unreachable shallow commits from "ours" */ - for (i = dst = 0; i < info->nr_ours; i++) { - if (i != dst) - info->ours[dst] = info->ours[i]; - c = lookup_commit(the_repository, &oid[info->ours[i]]); - bitmap = ref_bitmap_at(ref_bitmap, c); - if (!*bitmap) - continue; - for (j = 0; j < bitmap_nr; j++) - if (bitmap[0][j] && - /* Step 7, reachability test at commit level */ - !in_merge_bases_many(c, ca.nr, ca.commits)) { - update_refstatus(ref_status, info->ref->nr, *bitmap); - dst++; - break; - } - } - info->nr_ours = dst; - - 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(the_repository, - &si->shallow->oid[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]; -} |