1 files changed, 27 insertions, 0 deletions

diff --git a/shared.c b/shared.c
index 67eb67b..800c06a 100644
--- a/shared.c
+++ b/shared.c
@@ -450,32 +450,59 @@ void cgit_diff_tree(const unsigned char *old_sha1,
 
         diff_setup(&opt);
         opt.output_format = DIFF_FORMAT_CALLBACK;
         opt.detect_rename = 1;
         opt.rename_limit = ctx.cfg.renamelimit;
         DIFF_OPT_SET(&opt, RECURSIVE);
         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))
                 ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
         else
                 ret = diff_root_tree_sha1(new_sha1, "", &opt);
         diffcore_std(&opt);
         diff_flush(&opt);
 }
 
 void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 {
         unsigned char *old_sha1 = NULL;
 
         if (commit->parents)
                 old_sha1 = commit->parents->item->object.sha1;
         cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
 }
+
+int cgit_parse_snapshots_mask(const char *str)
+{
+        const struct cgit_snapshot_format *f;
+        static const char *delim = " \t,:/|;";
+        int tl, sl, rv = 0;
+
+        /* favor legacy setting */
+        if(atoi(str))
+                return 1;
+        for(;;) {
+                str += strspn(str,delim);
+                tl = strcspn(str,delim);
+                if (!tl)
+                        break;
+                for (f = cgit_snapshot_formats; f->suffix; f++) {
+                        sl = strlen(f->suffix);
+                        if((tl == sl && !strncmp(f->suffix, str, tl)) ||
+                           (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
+                                rv |= f->bit;
+                                break;
+                        }
+                }
+                str += tl;
+        }
+        return rv;
+}