ui-shared: use the same snapshot logic as ui-refs

Make snapshot links in the commit UI use the same prefix algorithm as
those in the summary UI, so that refs starting with the snapshot prefix
are used as-is rather than composed with the prefix repeated.

Signed-off-by: John Keeping <john@keeping.me.uk>
Reviewed-by: Christian Hesse <mail@eworm.de>

diff --git a/ui-shared.c b/ui-shared.c
index 8ae81d265a7a5927a91b3796a988a70510a7d5c5..50a168d8873a0bf99c76790df5bad10759d6e147 100644 (file)
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1115,9 +1115,15 @@ void cgit_print_snapshot_links(const struct cgit_repo *repo, const char *ref)
 {
        const struct cgit_snapshot_format* f;
        struct strbuf filename = STRBUF_INIT;
+       const char *basename;
        size_t prefixlen;
 
-       cgit_compose_snapshot_prefix(&filename, cgit_snapshot_prefix(repo), ref);
+       basename = cgit_snapshot_prefix(repo);
+       if (starts_with(ref, basename))
+               strbuf_addstr(&filename, ref);
+       else
+               cgit_compose_snapshot_prefix(&filename, basename, ref);
+
        prefixlen = filename.len;
        for (f = cgit_snapshot_formats; f->suffix; f++) {
                if (!(repo->snapshots & f->bit))