const char *new_id,
struct unpack_trees_options *o)
{
+ unsigned flags = SUBMODULE_MOVE_HEAD_DRY_RUN;
const struct submodule *sub = submodule_from_ce(ce);
if (!sub)
return 0;
+ if (o->reset)
+ flags |= SUBMODULE_MOVE_HEAD_FORCE;
+
switch (sub->update_strategy.type) {
case SM_UPDATE_UNSPECIFIED:
case SM_UPDATE_CHECKOUT:
- if (submodule_move_head(ce->name, old_id, new_id, SUBMODULE_MOVE_HEAD_DRY_RUN))
+ if (submodule_move_head(ce->name, old_id, new_id, flags))
return o->gently ? -1 :
add_rejected_path(o, ERROR_WOULD_LOSE_SUBMODULE, ce->name);
return 0;
case SM_UPDATE_CHECKOUT:
case SM_UPDATE_REBASE:
case SM_UPDATE_MERGE:
+ /* state.force is set at the caller. */
submodule_move_head(ce->name, "HEAD", NULL,
SUBMODULE_MOVE_HEAD_FORCE);
break;
return ret;
}
+static inline int are_same_oid(struct name_entry *name_j, struct name_entry *name_k)
+{
+ return name_j->oid && name_k->oid && !oidcmp(name_j->oid, name_k->oid);
+}
+
static int traverse_trees_recursive(int n, unsigned long dirmask,
unsigned long df_conflicts,
struct name_entry *names,
struct traverse_info *info)
{
int i, ret, bottom;
+ int nr_buf = 0;
struct tree_desc t[MAX_UNPACK_TREES];
void *buf[MAX_UNPACK_TREES];
struct traverse_info newinfo;
newinfo.pathlen += tree_entry_len(p) + 1;
newinfo.df_conflicts |= df_conflicts;
+ /*
+ * Fetch the tree from the ODB for each peer directory in the
+ * n commits.
+ *
+ * For 2- and 3-way traversals, we try to avoid hitting the
+ * ODB twice for the same OID. This should yield a nice speed
+ * up in checkouts and merges when the commits are similar.
+ *
+ * We don't bother doing the full O(n^2) search for larger n,
+ * because wider traversals don't happen that often and we
+ * avoid the search setup.
+ *
+ * When 2 peer OIDs are the same, we just copy the tree
+ * descriptor data. This implicitly borrows the buffer
+ * data from the earlier cell.
+ */
for (i = 0; i < n; i++, dirmask >>= 1) {
- const unsigned char *sha1 = NULL;
- if (dirmask & 1)
- sha1 = names[i].oid->hash;
- buf[i] = fill_tree_descriptor(t+i, sha1);
+ if (i > 0 && are_same_oid(&names[i], &names[i - 1]))
+ t[i] = t[i - 1];
+ else if (i > 1 && are_same_oid(&names[i], &names[i - 2]))
+ t[i] = t[i - 2];
+ else {
+ const unsigned char *sha1 = NULL;
+ if (dirmask & 1)
+ sha1 = names[i].oid->hash;
+ buf[nr_buf++] = fill_tree_descriptor(t+i, sha1);
+ }
}
bottom = switch_cache_bottom(&newinfo);
ret = traverse_trees(n, t, &newinfo);
restore_cache_bottom(&newinfo, bottom);
- for (i = 0; i < n; i++)
+ for (i = 0; i < nr_buf; i++)
free(buf[i]);
return ret;
struct cache_entry **cache_end;
int dtype = DT_DIR;
int ret = is_excluded_from_list(prefix->buf, prefix->len,
- basename, &dtype, el);
+ basename, &dtype, el, &the_index);
int rc;
strbuf_addch(prefix, '/');
/* Non-directory */
dtype = ce_to_dtype(ce);
ret = is_excluded_from_list(ce->name, ce_namelen(ce),
- name, &dtype, el);
+ name, &dtype, el, &the_index);
if (ret < 0)
ret = defval;
if (ret > 0)
o->skip_sparse_checkout = 1;
if (!o->skip_sparse_checkout) {
char *sparse = git_pathdup("info/sparse-checkout");
- if (add_excludes_from_file_to_list(sparse, "", 0, &el, 0) < 0)
+ if (add_excludes_from_file_to_list(sparse, "", 0, &el, NULL) < 0)
o->skip_sparse_checkout = 1;
else
o->el = ⪙
WRITE_TREE_SILENT |
WRITE_TREE_REPAIR);
}
+ move_index_extensions(&o->result, o->dst_index);
discard_index(o->dst_index);
*o->dst_index = o->result;
} else {
memset(&d, 0, sizeof(d));
if (o->dir)
d.exclude_per_dir = o->dir->exclude_per_dir;
- i = read_directory(&d, pathbuf, namelen+1, NULL);
+ i = read_directory(&d, &the_index, pathbuf, namelen+1, NULL);
if (i)
return o->gently ? -1 :
add_rejected_path(o, ERROR_NOT_UPTODATE_DIR, ce->name);
return 0;
if (o->dir &&
- is_excluded(o->dir, name, &dtype))
+ is_excluded(o->dir, &the_index, name, &dtype))
/*
* ce->name is explicitly excluded, so it is Ok to
* overwrite it.