Add prefix parameter to cgit_print_diff()

[ps-cgit] / shared.c

diff --git a/shared.c b/shared.c
index 0a6a5eda80884e5912a2b1fb463f50617ad006d0..3d4feeac2e415db10405f7f81eac3658f1d17b5b 100644 (file)
--- 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);
 }