path: root/tree-diff.c
diff options
authorLinus Torvalds <>2007-03-21 17:08:25 (GMT)
committerJunio C Hamano <>2007-03-21 17:21:57 (GMT)
commit6fda5e5180c2e7c130978361aea53b4e66f36823 (patch)
tree89df3a31883fe84ae06d1c05f29fa823614eef87 /tree-diff.c
parenta8c40471ab0851bf9a58f7dc76f121258e0690e2 (diff)
Initialize tree descriptors with a helper function rather than by hand.
This removes slightly more lines than it adds, but the real reason for doing this is that future optimizations will require more setup of the tree descriptor, and so we want to do it in one place. Also renamed the "desc.buf" field to "desc.buffer" just to trigger compiler errors for old-style manual initializations, making sure I didn't miss anything. Signed-off-by: Linus Torvalds <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'tree-diff.c')
1 files changed, 12 insertions, 10 deletions
diff --git a/tree-diff.c b/tree-diff.c
index b2f35dc..3678805 100644
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -154,12 +154,13 @@ static void show_entry(struct diff_options *opt, const char *prefix, struct tree
char *newbase = malloc_base(base, baselen, path, pathlen);
struct tree_desc inner;
void *tree;
+ unsigned long size;
- tree = read_sha1_file(sha1, &type, &inner.size);
+ tree = read_sha1_file(sha1, &type, &size);
if (!tree || type != OBJ_TREE)
die("corrupt tree sha %s", sha1_to_hex(sha1));
- inner.buf = tree;
+ init_tree_desc(&inner, tree, size);
show_tree(opt, prefix, &inner, newbase, baselen + 1 + pathlen);
@@ -227,16 +228,17 @@ int diff_tree_sha1(const unsigned char *old, const unsigned char *new, const cha
void *tree1, *tree2;
struct tree_desc t1, t2;
+ unsigned long size1, size2;
int retval;
- tree1 = read_object_with_reference(old, tree_type, &t1.size, NULL);
+ tree1 = read_object_with_reference(old, tree_type, &size1, NULL);
if (!tree1)
die("unable to read source tree (%s)", sha1_to_hex(old));
- tree2 = read_object_with_reference(new, tree_type, &t2.size, NULL);
+ tree2 = read_object_with_reference(new, tree_type, &size2, NULL);
if (!tree2)
die("unable to read destination tree (%s)", sha1_to_hex(new));
- t1.buf = tree1;
- t2.buf = tree2;
+ init_tree_desc(&t1, tree1, size1);
+ init_tree_desc(&t2, tree2, size2);
retval = diff_tree(&t1, &t2, base, opt);
@@ -247,15 +249,15 @@ int diff_root_tree_sha1(const unsigned char *new, const char *base, struct diff_
int retval;
void *tree;
+ unsigned long size;
struct tree_desc empty, real;
- tree = read_object_with_reference(new, tree_type, &real.size, NULL);
+ tree = read_object_with_reference(new, tree_type, &size, NULL);
if (!tree)
die("unable to read root tree (%s)", sha1_to_hex(new));
- real.buf = tree;
+ init_tree_desc(&real, tree, size);
- empty.size = 0;
- empty.buf = "";
+ init_tree_desc(&empty, "", 0);
retval = diff_tree(&empty, &real, base, opt);
return retval;