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-rw-r--r--cache-tree.c106
1 files changed, 97 insertions, 9 deletions
diff --git a/cache-tree.c b/cache-tree.c
index 16ea022..eabb8fb 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -4,6 +4,7 @@
#include "tree-walk.h"
#include "cache-tree.h"
#include "object-store.h"
+#include "replace-object.h"
#ifndef DEBUG
#define DEBUG 0
@@ -325,6 +326,7 @@ static int update_one(struct cache_tree *it,
unsigned mode;
int expected_missing = 0;
int contains_ita = 0;
+ int ce_missing_ok;
path = ce->name;
pathlen = ce_namelen(ce);
@@ -354,8 +356,11 @@ static int update_one(struct cache_tree *it,
i++;
}
+ ce_missing_ok = mode == S_IFGITLINK || missing_ok ||
+ (repository_format_partial_clone &&
+ ce_skip_worktree(ce));
if (is_null_oid(oid) ||
- (mode != S_IFGITLINK && !missing_ok && !has_object_file(oid))) {
+ (!ce_missing_ok && !has_object_file(oid))) {
strbuf_release(&buffer);
if (expected_missing)
return -1;
@@ -433,7 +438,9 @@ int cache_tree_update(struct index_state *istate, int flags)
if (i)
return i;
+ trace_performance_enter();
i = update_one(it, cache, entries, "", 0, &skip, flags);
+ trace_performance_leave("cache_tree_update");
if (i < 0)
return i;
istate->cache_changed |= CACHE_TREE_CHANGED;
@@ -441,7 +448,7 @@ int cache_tree_update(struct index_state *istate, int flags)
}
static void write_one(struct strbuf *buffer, struct cache_tree *it,
- const char *path, int pathlen)
+ const char *path, int pathlen)
{
int i;
@@ -652,7 +659,9 @@ out:
return ret;
}
-static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
+static void prime_cache_tree_rec(struct repository *r,
+ struct cache_tree *it,
+ struct tree *tree)
{
struct tree_desc desc;
struct name_entry entry;
@@ -666,24 +675,25 @@ static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
cnt++;
else {
struct cache_tree_sub *sub;
- struct tree *subtree = lookup_tree(the_repository,
- entry.oid);
+ struct tree *subtree = lookup_tree(r, entry.oid);
if (!subtree->object.parsed)
parse_tree(subtree);
sub = cache_tree_sub(it, entry.path);
sub->cache_tree = cache_tree();
- prime_cache_tree_rec(sub->cache_tree, subtree);
+ prime_cache_tree_rec(r, sub->cache_tree, subtree);
cnt += sub->cache_tree->entry_count;
}
}
it->entry_count = cnt;
}
-void prime_cache_tree(struct index_state *istate, struct tree *tree)
+void prime_cache_tree(struct repository *r,
+ struct index_state *istate,
+ struct tree *tree)
{
cache_tree_free(&istate->cache_tree);
istate->cache_tree = cache_tree();
- prime_cache_tree_rec(istate->cache_tree, tree);
+ prime_cache_tree_rec(r, istate->cache_tree, tree);
istate->cache_changed |= CACHE_TREE_CHANGED;
}
@@ -714,7 +724,85 @@ int cache_tree_matches_traversal(struct cache_tree *root,
it = find_cache_tree_from_traversal(root, info);
it = cache_tree_find(it, ent->path);
- if (it && it->entry_count > 0 && !oidcmp(ent->oid, &it->oid))
+ if (it && it->entry_count > 0 && oideq(ent->oid, &it->oid))
return it->entry_count;
return 0;
}
+
+static void verify_one(struct repository *r,
+ struct index_state *istate,
+ struct cache_tree *it,
+ struct strbuf *path)
+{
+ int i, pos, len = path->len;
+ struct strbuf tree_buf = STRBUF_INIT;
+ struct object_id new_oid;
+
+ for (i = 0; i < it->subtree_nr; i++) {
+ strbuf_addf(path, "%s/", it->down[i]->name);
+ verify_one(r, istate, it->down[i]->cache_tree, path);
+ strbuf_setlen(path, len);
+ }
+
+ if (it->entry_count < 0 ||
+ /* no verification on tests (t7003) that replace trees */
+ lookup_replace_object(r, &it->oid) != &it->oid)
+ return;
+
+ if (path->len) {
+ pos = index_name_pos(istate, path->buf, path->len);
+ pos = -pos - 1;
+ } else {
+ pos = 0;
+ }
+
+ i = 0;
+ while (i < it->entry_count) {
+ struct cache_entry *ce = istate->cache[pos + i];
+ const char *slash;
+ struct cache_tree_sub *sub = NULL;
+ const struct object_id *oid;
+ const char *name;
+ unsigned mode;
+ int entlen;
+
+ if (ce->ce_flags & (CE_STAGEMASK | CE_INTENT_TO_ADD | CE_REMOVE))
+ BUG("%s with flags 0x%x should not be in cache-tree",
+ ce->name, ce->ce_flags);
+ name = ce->name + path->len;
+ slash = strchr(name, '/');
+ if (slash) {
+ entlen = slash - name;
+ sub = find_subtree(it, ce->name + path->len, entlen, 0);
+ if (!sub || sub->cache_tree->entry_count < 0)
+ BUG("bad subtree '%.*s'", entlen, name);
+ oid = &sub->cache_tree->oid;
+ mode = S_IFDIR;
+ i += sub->cache_tree->entry_count;
+ } else {
+ oid = &ce->oid;
+ mode = ce->ce_mode;
+ entlen = ce_namelen(ce) - path->len;
+ i++;
+ }
+ strbuf_addf(&tree_buf, "%o %.*s%c", mode, entlen, name, '\0');
+ strbuf_add(&tree_buf, oid->hash, the_hash_algo->rawsz);
+ }
+ hash_object_file(tree_buf.buf, tree_buf.len, tree_type, &new_oid);
+ if (!oideq(&new_oid, &it->oid))
+ BUG("cache-tree for path %.*s does not match. "
+ "Expected %s got %s", len, path->buf,
+ oid_to_hex(&new_oid), oid_to_hex(&it->oid));
+ strbuf_setlen(path, len);
+ strbuf_release(&tree_buf);
+}
+
+void cache_tree_verify(struct repository *r, struct index_state *istate)
+{
+ struct strbuf path = STRBUF_INIT;
+
+ if (!istate->cache_tree)
+ return;
+ verify_one(r, istate, istate->cache_tree, &path);
+ strbuf_release(&path);
+}