Write the cache-tree data for the index version 5 file format. The
in-memory cache-tree data is converted to the ondisk format, by adding
it to the directory entries, that were compiled from the cache-entries
in the step before.
Signed-off-by: Thomas Gummerer <t.gumme...@gmail.com>
---
read-cache-v5.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/read-cache-v5.c b/read-cache-v5.c
index 797022f..0d06cfe 100644
--- a/read-cache-v5.c
+++ b/read-cache-v5.c
@@ -789,6 +789,57 @@ static struct directory_entry *get_directory(char *dir,
unsigned int dir_len,
return ret;
}
+static void convert_one_to_ondisk(struct hash_table *table, struct cache_tree
*it,
+ const char *path, int pathlen, uint32_t crc)
+{
+ int i, path_len = strlen(path);
+ struct directory_entry *search;
+
+ crc = crc32(crc, (Bytef*)path, pathlen);
+ search = lookup_hash(crc, table);
+ while (search && (path_len > search->de_pathlen
+ || strcmp(path, search->pathname + search->de_pathlen
- path_len)))
+ search = search->next_hash;
+ if (!search)
+ return;
+ /*
+ * The number of subtrees is already calculated by
+ * compile_directory_data, therefore we only need to
+ * add the entry_count
+ */
+ search->de_nentries = it->entry_count;
+ if (0 <= it->entry_count)
+ hashcpy(search->sha1, it->sha1);
+
+#if DEBUG
+ if (0 <= it->entry_count)
+ fprintf(stderr, "cache-tree <%.*s> (%d ent, %d subtree) %s\n",
+ pathlen, path, it->entry_count, it->subtree_nr,
+ sha1_to_hex(it->sha1));
+ else
+ fprintf(stderr, "cache-tree <%.*s> (%d subtree) invalid\n",
+ pathlen, path, it->subtree_nr);
+#endif
+
+ if (strcmp(path, ""))
+ crc = crc32(crc, (Bytef*)"/", 1);
+ for (i = 0; i < it->subtree_nr; i++) {
+ struct cache_tree_sub *down = it->down[i];
+ if (i) {
+ struct cache_tree_sub *prev = it->down[i-1];
+ if (subtree_name_cmp(down->name, down->namelen,
+ prev->name, prev->namelen) <= 0)
+ die("fatal - unsorted cache subtree");
+ }
+ convert_one_to_ondisk(table, down->cache_tree, down->name,
down->namelen, crc);
+ }
+}
+
+static void cache_tree_to_ondisk(struct hash_table *table, struct cache_tree
*root)
+{
+ convert_one_to_ondisk(table, root, "", 0, 0);
+}
+
static void ce_queue_push(struct cache_entry **head,
struct cache_entry **tail,
struct cache_entry *ce)
@@ -844,6 +895,8 @@ static struct directory_entry
*compile_directory_data(struct index_state *istate
*total_file_len -= search->de_pathlen + 1;
ce_queue_push(&(search->ce), &(search->ce_last), cache[i]);
}
+ if (istate->cache_tree)
+ cache_tree_to_ondisk(&table, istate->cache_tree);
return de;
}
--
1.8.4.2
--
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