Merge branch 'db/learn-HEAD'
* db/learn-HEAD:
Make ls-remote http://... list HEAD, like for git://...
Make walker.fetch_ref() take a struct ref.
diff --git a/cache.h b/cache.h
index d5d5dad..7fb8f33 100644
--- a/cache.h
+++ b/cache.h
@@ -635,6 +635,7 @@
struct ref *next;
unsigned char old_sha1[20];
unsigned char new_sha1[20];
+ char *symref;
unsigned int force:1,
merge:1,
nonfastforward:1,
diff --git a/http-push.c b/http-push.c
index 5b23038..939a764 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1759,15 +1759,16 @@
static void one_remote_ref(char *refname)
{
struct ref *ref;
- unsigned char remote_sha1[20];
struct object *obj;
- int len = strlen(refname) + 1;
- if (http_fetch_ref(remote->url, refname + 5 /* "refs/" */,
- remote_sha1) != 0) {
+ ref = alloc_ref(strlen(refname) + 1);
+ strcpy(ref->name, refname);
+
+ if (http_fetch_ref(remote->url, ref) != 0) {
fprintf(stderr,
"Unable to fetch ref %s from %s\n",
refname, remote->url);
+ free(ref);
return;
}
@@ -1775,18 +1776,15 @@
* Fetch a copy of the object if it doesn't exist locally - it
* may be required for updating server info later.
*/
- if (remote->can_update_info_refs && !has_sha1_file(remote_sha1)) {
- obj = lookup_unknown_object(remote_sha1);
+ if (remote->can_update_info_refs && !has_sha1_file(ref->old_sha1)) {
+ obj = lookup_unknown_object(ref->old_sha1);
if (obj) {
fprintf(stderr, " fetch %s for %s\n",
- sha1_to_hex(remote_sha1), refname);
+ sha1_to_hex(ref->old_sha1), refname);
add_fetch_request(obj);
}
}
- ref = xcalloc(1, sizeof(*ref) + len);
- hashcpy(ref->old_sha1, remote_sha1);
- memcpy(ref->name, refname, len);
*remote_tail = ref;
remote_tail = &ref->next;
}
@@ -1891,33 +1889,37 @@
static void add_remote_info_ref(struct remote_ls_ctx *ls)
{
struct strbuf *buf = (struct strbuf *)ls->userData;
- unsigned char remote_sha1[20];
struct object *o;
int len;
char *ref_info;
+ struct ref *ref;
- if (http_fetch_ref(remote->url, ls->dentry_name + 5 /* "refs/" */,
- remote_sha1) != 0) {
+ ref = alloc_ref(strlen(ls->dentry_name) + 1);
+ strcpy(ref->name, ls->dentry_name);
+
+ if (http_fetch_ref(remote->url, ref) != 0) {
fprintf(stderr,
"Unable to fetch ref %s from %s\n",
ls->dentry_name, remote->url);
aborted = 1;
+ free(ref);
return;
}
- o = parse_object(remote_sha1);
+ o = parse_object(ref->old_sha1);
if (!o) {
fprintf(stderr,
"Unable to parse object %s for remote ref %s\n",
- sha1_to_hex(remote_sha1), ls->dentry_name);
+ sha1_to_hex(ref->old_sha1), ls->dentry_name);
aborted = 1;
+ free(ref);
return;
}
len = strlen(ls->dentry_name) + 42;
ref_info = xcalloc(len + 1, 1);
sprintf(ref_info, "%s %s\n",
- sha1_to_hex(remote_sha1), ls->dentry_name);
+ sha1_to_hex(ref->old_sha1), ls->dentry_name);
fwrite_buffer(ref_info, 1, len, buf);
free(ref_info);
@@ -1932,6 +1934,7 @@
free(ref_info);
}
}
+ free(ref);
}
static void update_remote_info_refs(struct remote_lock *lock)
diff --git a/http-walker.c b/http-walker.c
index 7bda34d..99f397e 100644
--- a/http-walker.c
+++ b/http-walker.c
@@ -888,10 +888,10 @@
data->alt->base);
}
-static int fetch_ref(struct walker *walker, char *ref, unsigned char *sha1)
+static int fetch_ref(struct walker *walker, struct ref *ref)
{
struct walker_data *data = walker->data;
- return http_fetch_ref(data->alt->base, ref, sha1);
+ return http_fetch_ref(data->alt->base, ref);
}
static void cleanup(struct walker *walker)
diff --git a/http.c b/http.c
index 256a5f1..acf746a 100644
--- a/http.c
+++ b/http.c
@@ -589,8 +589,9 @@
len += 2; /* extra two hex plus replacement % */
qref = xmalloc(len);
memcpy(qref, base, baselen);
- memcpy(qref + baselen, "/refs/", 6);
- for (cp = ref, dp = qref + baselen + 6; (ch = *cp) != 0; cp++) {
+ dp = qref + baselen;
+ *(dp++) = '/';
+ for (cp = ref; (ch = *cp) != 0; cp++) {
if (needs_quote(ch)) {
*dp++ = '%';
*dp++ = hex((ch >> 4) & 0xF);
@@ -604,7 +605,7 @@
return qref;
}
-int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1)
+int http_fetch_ref(const char *base, struct ref *ref)
{
char *url;
struct strbuf buffer = STRBUF_INIT;
@@ -612,7 +613,7 @@
struct slot_results results;
int ret;
- url = quote_ref_url(base, ref);
+ url = quote_ref_url(base, ref->name);
slot = get_active_slot();
slot->results = &results;
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
@@ -624,12 +625,15 @@
if (results.curl_result == CURLE_OK) {
strbuf_rtrim(&buffer);
if (buffer.len == 40)
- ret = get_sha1_hex(buffer.buf, sha1);
- else
+ ret = get_sha1_hex(buffer.buf, ref->old_sha1);
+ else if (!prefixcmp(buffer.buf, "ref: ")) {
+ ref->symref = xstrdup(buffer.buf + 5);
+ ret = 0;
+ } else
ret = 1;
} else {
ret = error("Couldn't get %s for %s\n%s",
- url, ref, curl_errorstr);
+ url, ref->name, curl_errorstr);
}
} else {
ret = error("Unable to start request");
diff --git a/http.h b/http.h
index 04169d5..a04fc6a 100644
--- a/http.h
+++ b/http.h
@@ -105,6 +105,6 @@
#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
-extern int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1);
+extern int http_fetch_ref(const char *base, struct ref *ref);
#endif /* HTTP_H */
diff --git a/remote.c b/remote.c
index 870d224..6b480cb 100644
--- a/remote.c
+++ b/remote.c
@@ -711,13 +711,22 @@
return ret;
}
+void free_ref(struct ref *ref)
+{
+ if (!ref)
+ return;
+ free(ref->remote_status);
+ free(ref->symref);
+ free(ref);
+}
+
void free_refs(struct ref *ref)
{
struct ref *next;
while (ref) {
next = ref->next;
free(ref->peer_ref);
- free(ref);
+ free_ref(ref);
ref = next;
}
}
@@ -1177,3 +1186,15 @@
return 0;
}
+
+int resolve_remote_symref(struct ref *ref, struct ref *list)
+{
+ if (!ref->symref)
+ return 0;
+ for (; list; list = list->next)
+ if (!strcmp(ref->symref, list->name)) {
+ hashcpy(ref->old_sha1, list->old_sha1);
+ return 0;
+ }
+ return 1;
+}
diff --git a/remote.h b/remote.h
index 6878c52..75d006b 100644
--- a/remote.h
+++ b/remote.h
@@ -63,6 +63,8 @@
*/
void free_refs(struct ref *ref);
+int resolve_remote_symref(struct ref *ref, struct ref *list);
+
/*
* Removes and frees any duplicate refs in the map.
*/
diff --git a/transport.c b/transport.c
index 393e0e8..b012a28 100644
--- a/transport.c
+++ b/transport.c
@@ -441,10 +441,14 @@
struct ref *ref = NULL;
struct ref *last_ref = NULL;
+ struct walker *walker;
+
if (!transport->data)
transport->data = get_http_walker(transport->url,
transport->remote);
+ walker = transport->data;
+
refs_url = xmalloc(strlen(transport->url) + 11);
sprintf(refs_url, "%s/info/refs", transport->url);
@@ -500,6 +504,16 @@
strbuf_release(&buffer);
+ ref = alloc_ref(strlen("HEAD") + 1);
+ strcpy(ref->name, "HEAD");
+ if (!walker->fetch_ref(walker, ref) &&
+ !resolve_remote_symref(ref, refs)) {
+ ref->next = refs;
+ refs = ref;
+ } else {
+ free(ref);
+ }
+
return refs;
}
diff --git a/walker.c b/walker.c
index c10eca8..fa96a7c 100644
--- a/walker.c
+++ b/walker.c
@@ -190,9 +190,14 @@
if (!get_sha1_hex(target, sha1))
return 0;
if (!check_ref_format(target)) {
- if (!walker->fetch_ref(walker, target, sha1)) {
+ struct ref *ref = alloc_ref(strlen(target));
+ strcpy(ref->name, target);
+ if (!walker->fetch_ref(walker, ref)) {
+ hashcpy(sha1, ref->old_sha1);
+ free(ref);
return 0;
}
+ free(ref);
}
return -1;
}
diff --git a/walker.h b/walker.h
index e1d40de..8a149e1 100644
--- a/walker.h
+++ b/walker.h
@@ -5,7 +5,7 @@
struct walker {
void *data;
- int (*fetch_ref)(struct walker *, char *ref, unsigned char *sha1);
+ int (*fetch_ref)(struct walker *, struct ref *ref);
void (*prefetch)(struct walker *, unsigned char *sha1);
int (*fetch)(struct walker *, unsigned char *sha1);
void (*cleanup)(struct walker *);
