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-rw-r--r--shared.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/shared.c b/shared.c
index 0a6a5ed..3d4feea 100644
--- a/shared.c
+++ b/shared.c
@@ -386,10 +386,11 @@ int cgit_diff_files(const unsigned char *old_sha1,
void cgit_diff_tree(const unsigned char *old_sha1,
const unsigned char *new_sha1,
- filepair_fn fn)
+ filepair_fn fn, const char *prefix)
{
struct diff_options opt;
int ret;
+ int prefixlen;
diff_setup(&opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
@@ -398,6 +399,12 @@ void cgit_diff_tree(const unsigned char *old_sha1,
opt.recursive = 1;
opt.format_callback = cgit_diff_tree_cb;
opt.format_callback_data = fn;
+ if (prefix) {
+ opt.nr_paths = 1;
+ opt.paths = &prefix;
+ prefixlen = strlen(prefix);
+ opt.pathlens = &prefixlen;
+ }
diff_setup_done(&opt);
if (old_sha1 && !is_null_sha1(old_sha1))
@@ -414,5 +421,5 @@ void cgit_diff_commit(struct commit *commit, filepair_fn fn)
if (commit->parents)
old_sha1 = commit->parents->item->object.sha1;
- cgit_diff_tree(old_sha1, commit->object.sha1, fn);
+ cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
}