diff options
Diffstat (limited to 'ui-shared.c')
| -rw-r--r-- | ui-shared.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/ui-shared.c b/ui-shared.c index 562fa0e..b1a6c46 100644 --- a/ui-shared.c +++ b/ui-shared.c @@ -1069,18 +1069,34 @@ void cgit_print_filemode(unsigned short mode) html_fileperm(mode); } +void cgit_compose_snapshot_prefix(struct strbuf *filename, const char *base, + const char *ref) +{ + unsigned char sha1[20]; + + /* + * Prettify snapshot names by stripping leading "v" or "V" if the tag + * name starts with {v,V}[0-9] and the prettify mapping is injective, + * i.e. each stripped tag can be inverted without ambiguities. + */ + if (get_sha1(fmt("refs/tags/%s", ref), sha1) == 0 && + (ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]) && + ((get_sha1(fmt("refs/tags/%s", ref + 1), sha1) == 0) + + (get_sha1(fmt("refs/tags/v%s", ref + 1), sha1) == 0) + + (get_sha1(fmt("refs/tags/V%s", ref + 1), sha1) == 0) == 1)) + ref++; + + strbuf_addf(filename, "%s-%s", base, ref); +} + void cgit_print_snapshot_links(const char *repo, const char *head, const char *hex, int snapshots) { const struct cgit_snapshot_format* f; struct strbuf filename = STRBUF_INIT; size_t prefixlen; - unsigned char sha1[20]; - if (get_sha1(fmt("refs/tags/%s", hex), sha1) == 0 && - (hex[0] == 'v' || hex[0] == 'V') && isdigit(hex[1])) - hex++; - strbuf_addf(&filename, "%s-%s", cgit_repobasename(repo), hex); + cgit_compose_snapshot_prefix(&filename, cgit_repobasename(repo), hex); prefixlen = filename.len; for (f = cgit_snapshot_formats; f->suffix; f++) { if (!(snapshots & f->bit)) |