[PATCH 04/36] cache-tree: convert remnants to struct object_id

[brian m. carlson]

Convert the remaining portions of cache-tree.c to use struct object_id.
Convert several instances of 20 to use the_hash_algo instead.

Signed-off-by: brian m. carlson <sand...@crustytoothpaste.net>
---
 cache-tree.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/cache-tree.c b/cache-tree.c
index ba07a8067e..601dd1bb1f 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -320,7 +320,7 @@ static int update_one(struct cache_tree *it,
                struct cache_tree_sub *sub = NULL;
                const char *path, *slash;
                int pathlen, entlen;
-               const unsigned char *sha1;
+               const struct object_id *oid;
                unsigned mode;
                int expected_missing = 0;
                int contains_ita = 0;
@@ -338,7 +338,7 @@ static int update_one(struct cache_tree *it,
                                die("cache-tree.c: '%.*s' in '%s' not found",
                                    entlen, path + baselen, path);
                        i += sub->count;
-                       sha1 = sub->cache_tree->oid.hash;
+                       oid = &sub->cache_tree->oid;
                        mode = S_IFDIR;
                        contains_ita = sub->cache_tree->entry_count < 0;
                        if (contains_ita) {
@@ -347,19 +347,19 @@ static int update_one(struct cache_tree *it,
                        }
                }
                else {
-                       sha1 = ce->oid.hash;
+                       oid = &ce->oid;
                        mode = ce->ce_mode;
                        entlen = pathlen - baselen;
                        i++;
                }
 
-               if (is_null_sha1(sha1) ||
-                   (mode != S_IFGITLINK && !missing_ok && 
!has_sha1_file(sha1))) {
+               if (is_null_oid(oid) ||
+                   (mode != S_IFGITLINK && !missing_ok && 
!has_object_file(oid))) {
                        strbuf_release(&buffer);
                        if (expected_missing)
                                return -1;
                        return error("invalid object %06o %s for '%.*s'",
-                               mode, sha1_to_hex(sha1), entlen+baselen, path);
+                               mode, oid_to_hex(oid), entlen+baselen, path);
                }
 
                /*
@@ -385,12 +385,12 @@ static int update_one(struct cache_tree *it,
                /*
                 * "sub" can be an empty tree if all subentries are i-t-a.
                 */
-               if (contains_ita && !hashcmp(sha1, EMPTY_TREE_SHA1_BIN))
+               if (contains_ita && !oidcmp(oid, &empty_tree_oid))
                        continue;
 
                strbuf_grow(&buffer, entlen + 100);
                strbuf_addf(&buffer, "%o %.*s%c", mode, entlen, path + baselen, 
'\0');
-               strbuf_add(&buffer, sha1, 20);
+               strbuf_add(&buffer, oid->hash, the_hash_algo->rawsz);
 
 #if DEBUG
                fprintf(stderr, "cache-tree update-one %o %.*s\n",
@@ -401,7 +401,7 @@ static int update_one(struct cache_tree *it,
        if (repair) {
                struct object_id oid;
                hash_object_file(buffer.buf, buffer.len, tree_type, &oid);
-               if (has_sha1_file(oid.hash))
+               if (has_object_file(&oid))
                        oidcpy(&it->oid, &oid);
                else
                        to_invalidate = 1;
@@ -465,7 +465,7 @@ static void write_one(struct strbuf *buffer, struct 
cache_tree *it,
 #endif
 
        if (0 <= it->entry_count) {
-               strbuf_add(buffer, it->oid.hash, 20);
+               strbuf_add(buffer, it->oid.hash, the_hash_algo->rawsz);
        }
        for (i = 0; i < it->subtree_nr; i++) {
                struct cache_tree_sub *down = it->down[i];
@@ -520,11 +520,11 @@ static struct cache_tree *read_one(const char **buffer, 
unsigned long *size_p)
                goto free_return;
        buf++; size--;
        if (0 <= it->entry_count) {
-               if (size < 20)
+               if (size < the_hash_algo->rawsz)
                        goto free_return;
                hashcpy(it->oid.hash, (const unsigned char*)buf);
-               buf += 20;
-               size -= 20;
+               buf += the_hash_algo->rawsz;
+               size -= the_hash_algo->rawsz;
        }
 
 #if DEBUG