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-rw-r--r--third_party/git/shallow.c794
1 files changed, 0 insertions, 794 deletions
diff --git a/third_party/git/shallow.c b/third_party/git/shallow.c
deleted file mode 100644
index 5fa2b15d37..0000000000
--- a/third_party/git/shallow.c
+++ /dev/null
@@ -1,794 +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 "sha1-array.h"
-#include "diff.h"
-#include "revision.h"
-#include "commit-slab.h"
-#include "revision.h"
-#include "list-objects.h"
-#include "commit-slab.h"
-#include "repository.h"
-#include "commit-reach.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 is_repository_shallow(struct repository *r)
-{
-	/*
-	 * NEEDSWORK: This function updates
-	 * r->parsed_objects->{is_shallow,shallow_stat} as a side effect but
-	 * there is no corresponding function to clear them when the shallow
-	 * file is updated.
-	 */
-
-	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;
-}
-
-/*
- * TODO: use "int" elemtype instead of "int *" when/if commit-slab
- * supports a "valid" flag.
- */
-define_commit_slab(commit_depth, int *);
-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);
-			}
-		}
-	}
-	for (i = 0; i < depths.slab_count; i++) {
-		int j;
-
-		for (j = 0; j < depths.slab_size; j++)
-			free(depths.slab[i][j]);
-	}
-	clear_commit_depth(&depths);
-
-	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, &not_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 lock_file *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,
-				       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));
-		*alternate_shallow_file = get_lock_file_path(shallow_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 lock_file shallow_lock = 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,
-				       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));
-		commit_lock_file(&shallow_lock);
-	} else {
-		unlink(git_path_shallow(the_repository));
-		rollback_lock_file(&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];
-}