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-rw-r--r--sha1_name.c62
1 files changed, 36 insertions, 26 deletions
diff --git a/sha1_name.c b/sha1_name.c
index de8caf8..d77f770 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -235,22 +235,23 @@ static int ambiguous_path(const char *path, int len)
return slash;
}
+static const char *ref_fmt[] = {
+ "%.*s",
+ "refs/%.*s",
+ "refs/tags/%.*s",
+ "refs/heads/%.*s",
+ "refs/remotes/%.*s",
+ "refs/remotes/%.*s/HEAD",
+ NULL
+};
+
int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
{
- static const char *fmt[] = {
- "%.*s",
- "refs/%.*s",
- "refs/tags/%.*s",
- "refs/heads/%.*s",
- "refs/remotes/%.*s",
- "refs/remotes/%.*s/HEAD",
- NULL
- };
const char **p, *r;
int refs_found = 0;
*ref = NULL;
- for (p = fmt; *p; p++) {
+ for (p = ref_fmt; *p; p++) {
unsigned char sha1_from_ref[20];
unsigned char *this_result;
@@ -266,6 +267,28 @@ int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
return refs_found;
}
+static int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
+{
+ const char **p;
+ int logs_found = 0;
+
+ *log = NULL;
+ for (p = ref_fmt; *p; p++) {
+ struct stat st;
+ char *path = mkpath(*p, len, str);
+ if (!stat(git_path("logs/%s", path), &st) &&
+ S_ISREG(st.st_mode)) {
+ if (!logs_found++) {
+ *log = xstrdup(path);
+ resolve_ref(path, sha1, 0, NULL);
+ }
+ if (!warn_ambiguous_refs)
+ break;
+ }
+ }
+ return logs_found;
+}
+
static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
{
static const char *warning = "warning: refname '%.*s' is ambiguous.\n";
@@ -295,7 +318,9 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
if (!len && reflog_len) {
/* allow "@{...}" to mean the current branch reflog */
refs_found = dwim_ref("HEAD", 4, sha1, &real_ref);
- } else
+ } else if (reflog_len)
+ refs_found = dwim_log(str, len, sha1, &real_ref);
+ else
refs_found = dwim_ref(str, len, sha1, &real_ref);
if (!refs_found)
@@ -310,21 +335,6 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
unsigned long co_time;
int co_tz, co_cnt;
- /*
- * We'll have an independent reflog for "HEAD" eventually
- * which won't be a synonym for the current branch reflog.
- * In the mean time prevent people from getting used to
- * such a synonym until the work is completed.
- */
- if (len && !strncmp("HEAD", str, len) &&
- !strncmp(real_ref, "refs/", 5)) {
- error("reflog for HEAD has not been implemented yet\n"
- "Maybe you could try %s%s instead, "
- "or just %s for current branch..",
- strchr(real_ref+5, '/')+1, str+len, str+len);
- exit(-1);
- }
-
/* Is it asking for N-th entry, or approxidate? */
for (i = nth = 0; 0 <= nth && i < reflog_len; i++) {
char ch = str[at+2+i];