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코드 이슈 풀 리퀘스트 릴리즈 위키 활동

Avoid ambiguities when prettifying snapshot names

소스 검색 
When composing snapshot file names for a tag with a prefix of the form
v[0-9] (resp. V[0-9]), the leading "v" (resp. "V") is stripped. This
leads to conflicts if a tag with the stripped name already exists or if
there are tags only differing in the capitalization of the leading "v".
Make sure we do not strip the "v" in these cases.

Reported-by: Juuso Lapinlampi <wub@partyvan.eu>
Signed-off-by: Lukas Fleischer <lfleischer@lfos.de>
This commit is contained in:
Lukas Fleischer 2016-05-24 18:15:18 +02:00 committed by Jason A. Donenfeld
부모 1e039ada85
커밋 9984e7ab49
3개의 변경된 파일과 32개의 추가작업 그리고 20개의 파일을 삭제
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24
ui-refs.c
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@ -93,34 +93,28 @@ static void print_tag_header(void)
static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
{
const struct cgit_snapshot_format* f;
struct strbuf filename = STRBUF_INIT;
const char *basename;
int free_ref = 0;
struct strbuf filename = STRBUF_INIT;
size_t prefixlen;
if (!ref || strlen(ref) < 1)
return;
basename = cgit_repobasename(repo->url);
if (!starts_with(ref, basename)) {
if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
ref++;
if (isdigit(ref[0])) {
ref = fmtalloc("%s-%s", basename, ref);
free_ref = 1;
}
}
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))
continue;
strbuf_reset(&filename);
strbuf_addf(&filename, "%s%s", ref, f->suffix);
strbuf_setlen(&filename, prefixlen);
strbuf_addstr(&filename, f->suffix);
cgit_snapshot_link(filename.buf, NULL, NULL, NULL, NULL, filename.buf);
html("&nbsp;&nbsp;");
}
if (free_ref)
free((char *)ref);
strbuf_release(&filename);
}

26
ui-shared.c
파일 보기

@ -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))

2
ui-shared.h
파일 보기

@ -71,6 +71,8 @@ __attribute__((format (printf,3,4)))
extern void cgit_print_error_page(int code, const char *msg, const char *fmt, ...);
extern void cgit_print_pageheader(void);
extern void cgit_print_filemode(unsigned short mode);
extern void cgit_compose_snapshot_prefix(struct strbuf *filename,
const char *base, const char *ref);
extern void cgit_print_snapshot_links(const char *repo, const char *head,
const char *hex, int snapshots);
extern void cgit_add_hidden_formfields(int incl_head, int incl_search,