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Diffstat (limited to 'cache-tree.c')
-rw-r--r--cache-tree.c60
1 files changed, 17 insertions, 43 deletions
diff --git a/cache-tree.c b/cache-tree.c
index 077f03436..50b35264f 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -235,8 +235,7 @@ static int update_one(struct cache_tree *it,
int missing_ok,
int dryrun)
{
- unsigned long size, offset;
- char *buffer;
+ struct strbuf buffer;
int i;
if (0 <= it->entry_count && has_sha1_file(it->sha1))
@@ -293,9 +292,7 @@ static int update_one(struct cache_tree *it,
/*
* Then write out the tree object for this level.
*/
- size = 8192;
- buffer = xmalloc(size);
- offset = 0;
+ strbuf_init(&buffer, 8192);
for (i = 0; i < entries; i++) {
struct cache_entry *ce = cache[i];
@@ -332,15 +329,9 @@ static int update_one(struct cache_tree *it,
if (!ce->ce_mode)
continue; /* entry being removed */
- if (size < offset + entlen + 100) {
- size = alloc_nr(offset + entlen + 100);
- buffer = xrealloc(buffer, size);
- }
- offset += sprintf(buffer + offset,
- "%o %.*s", mode, entlen, path + baselen);
- buffer[offset++] = 0;
- hashcpy((unsigned char*)buffer + offset, sha1);
- offset += 20;
+ strbuf_grow(&buffer, entlen + 100);
+ strbuf_addf(&buffer, "%o %.*s%c", mode, entlen, path + baselen, '\0');
+ strbuf_add(&buffer, sha1, 20);
#if DEBUG
fprintf(stderr, "cache-tree update-one %o %.*s\n",
@@ -349,10 +340,10 @@ static int update_one(struct cache_tree *it,
}
if (dryrun)
- hash_sha1_file(buffer, offset, tree_type, it->sha1);
+ hash_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1);
else
- write_sha1_file(buffer, offset, tree_type, it->sha1);
- free(buffer);
+ write_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1);
+ strbuf_release(&buffer);
it->entry_count = i;
#if DEBUG
fprintf(stderr, "cache-tree update-one (%d ent, %d subtree) %s\n",
@@ -378,12 +369,8 @@ int cache_tree_update(struct cache_tree *it,
return 0;
}
-static void *write_one(struct cache_tree *it,
- char *path,
- int pathlen,
- char *buffer,
- unsigned long *size,
- unsigned long *offset)
+static void write_one(struct strbuf *buffer, struct cache_tree *it,
+ const char *path, int pathlen)
{
int i;
@@ -393,13 +380,9 @@ static void *write_one(struct cache_tree *it,
* tree-sha1 (missing if invalid)
* subtree_nr "cache-tree" entries for subtrees.
*/
- if (*size < *offset + pathlen + 100) {
- *size = alloc_nr(*offset + pathlen + 100);
- buffer = xrealloc(buffer, *size);
- }
- *offset += sprintf(buffer + *offset, "%.*s%c%d %d\n",
- pathlen, path, 0,
- it->entry_count, it->subtree_nr);
+ strbuf_grow(buffer, pathlen + 100);
+ strbuf_add(buffer, path, pathlen);
+ strbuf_addf(buffer, "%c%d %d\n", 0, it->entry_count, it->subtree_nr);
#if DEBUG
if (0 <= it->entry_count)
@@ -412,8 +395,7 @@ static void *write_one(struct cache_tree *it,
#endif
if (0 <= it->entry_count) {
- hashcpy((unsigned char*)buffer + *offset, it->sha1);
- *offset += 20;
+ strbuf_add(buffer, it->sha1, 20);
}
for (i = 0; i < it->subtree_nr; i++) {
struct cache_tree_sub *down = it->down[i];
@@ -423,21 +405,13 @@ static void *write_one(struct cache_tree *it,
prev->name, prev->namelen) <= 0)
die("fatal - unsorted cache subtree");
}
- buffer = write_one(down->cache_tree, down->name, down->namelen,
- buffer, size, offset);
+ write_one(buffer, down->cache_tree, down->name, down->namelen);
}
- return buffer;
}
-void *cache_tree_write(struct cache_tree *root, unsigned long *size_p)
+void cache_tree_write(struct strbuf *sb, struct cache_tree *root)
{
- char path[PATH_MAX];
- unsigned long size = 8192;
- char *buffer = xmalloc(size);
-
- *size_p = 0;
- path[0] = 0;
- return write_one(root, path, 0, buffer, &size, size_p);
+ write_one(sb, root, "", 0);
}
static struct cache_tree *read_one(const char **buffer, unsigned long *size_p)