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diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index e1ba4dc697abd1b2582713744c5a1892ef4a4882..af429e101777f1c5df09734433278cfb075e978c 100644 (file)
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
#include "remote.h"
#include "transport.h"
#include "string-list.h"
+#include "sha1-array.h"
static const char receive_pack_usage[] = "git receive-pack <git-dir>";
@@ -119,9 +120,25 @@ static int show_ref(const char *path, const unsigned char *sha1, int flag, void
return 0;
}
+static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+{
+ path = strip_namespace(path);
+ /*
+ * Advertise refs outside our current namespace as ".have"
+ * refs, so that the client can use them to minimize data
+ * transfer but will otherwise ignore them. This happens to
+ * cover ".have" that are thrown in by add_one_alternate_ref()
+ * to mark histories that are complete in our alternates as
+ * well.
+ */
+ if (!path)
+ path = ".have";
+ return show_ref(path, sha1, flag, cb_data);
+}
+
static void write_head_info(void)
{
- for_each_ref(show_ref, NULL);
+ for_each_ref(show_ref_cb, NULL);
if (!sent_capabilities)
show_ref("capabilities^{}", null_sha1, 0, NULL);
return 0;
}
-static int run_receive_hook(struct command *commands, const char *hook_name)
+typedef int (*feed_fn)(void *, const char **, size_t *);
+static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_state)
{
- static char buf[sizeof(commands->old_sha1) * 2 + PATH_MAX + 4];
- struct command *cmd;
struct child_process proc;
struct async muxer;
const char *argv[2];
- int have_input = 0, code;
-
- for (cmd = commands; !have_input && cmd; cmd = cmd->next) {
- if (!cmd->error_string)
- have_input = 1;
- }
+ int code;
- if (!have_input || access(hook_name, X_OK) < 0)
+ if (access(hook_name, X_OK) < 0)
return 0;
argv[0] = hook_name;
return code;
}
- for (cmd = commands; cmd; cmd = cmd->next) {
- if (!cmd->error_string) {
- size_t n = snprintf(buf, sizeof(buf), "%s %s %s\n",
- sha1_to_hex(cmd->old_sha1),
- sha1_to_hex(cmd->new_sha1),
- cmd->ref_name);
- if (write_in_full(proc.in, buf, n) != n)
- break;
- }
+ while (1) {
+ const char *buf;
+ size_t n;
+ if (feed(feed_state, &buf, &n))
+ break;
+ if (write_in_full(proc.in, buf, n) != n)
+ break;
}
close(proc.in);
if (use_sideband)
return finish_command(&proc);
}
+struct receive_hook_feed_state {
+ struct command *cmd;
+ struct strbuf buf;
+};
+
+static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep)
+{
+ struct receive_hook_feed_state *state = state_;
+ struct command *cmd = state->cmd;
+
+ while (cmd && cmd->error_string)
+ cmd = cmd->next;
+ if (!cmd)
+ return -1; /* EOF */
+ strbuf_reset(&state->buf);
+ strbuf_addf(&state->buf, "%s %s %s\n",
+ sha1_to_hex(cmd->old_sha1), sha1_to_hex(cmd->new_sha1),
+ cmd->ref_name);
+ state->cmd = cmd->next;
+ if (bufp) {
+ *bufp = state->buf.buf;
+ *sizep = state->buf.len;
+ }
+ return 0;
+}
+
+static int run_receive_hook(struct command *commands, const char *hook_name)
+{
+ struct receive_hook_feed_state state;
+ int status;
+
+ strbuf_init(&state.buf, 0);
+ state.cmd = commands;
+ if (feed_receive_hook(&state, NULL, NULL))
+ return 0;
+ state.cmd = commands;
+ status = run_and_feed_hook(hook_name, feed_receive_hook, &state);
+ strbuf_release(&state.buf);
+ return status;
+}
+
static int run_update_hook(struct command *cmd)
{
static const char update_hook[] = "hooks/update";
static const char *update(struct command *cmd)
{
const char *name = cmd->ref_name;
+ struct strbuf namespaced_name_buf = STRBUF_INIT;
+ const char *namespaced_name;
unsigned char *old_sha1 = cmd->old_sha1;
unsigned char *new_sha1 = cmd->new_sha1;
struct ref_lock *lock;
return "funny refname";
}
- if (is_ref_checked_out(name)) {
+ strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name);
+ namespaced_name = strbuf_detach(&namespaced_name_buf, NULL);
+
+ if (is_ref_checked_out(namespaced_name)) {
switch (deny_current_branch) {
case DENY_IGNORE:
break;
return "deletion prohibited";
}
- if (!strcmp(name, head_name)) {
+ if (!strcmp(namespaced_name, head_name)) {
switch (deny_delete_current) {
case DENY_IGNORE:
break;
rp_warning("Allowing deletion of corrupt ref.");
old_sha1 = NULL;
}
- if (delete_ref(name, old_sha1, 0)) {
+ if (delete_ref(namespaced_name, old_sha1, 0)) {
rp_error("failed to delete %s", name);
return "failed to delete";
}
return NULL; /* good */
}
else {
- lock = lock_any_ref_for_update(name, old_sha1, 0);
+ lock = lock_any_ref_for_update(namespaced_name, old_sha1, 0);
if (!lock) {
rp_error("failed to lock %s", name);
return "failed to lock";
static void check_aliased_update(struct command *cmd, struct string_list *list)
{
+ struct strbuf buf = STRBUF_INIT;
+ const char *dst_name;
struct string_list_item *item;
struct command *dst_cmd;
unsigned char sha1[20];
char cmd_oldh[41], cmd_newh[41], dst_oldh[41], dst_newh[41];
int flag;
- const char *dst_name = resolve_ref(cmd->ref_name, sha1, 0, &flag);
+ strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
+ dst_name = resolve_ref(buf.buf, sha1, 0, &flag);
+ strbuf_release(&buf);
if (!(flag & REF_ISSYMREF))
return;
+ dst_name = strip_namespace(dst_name);
+ if (!dst_name) {
+ rp_error("refusing update to broken symref '%s'", cmd->ref_name);
+ cmd->skip_update = 1;
+ cmd->error_string = "broken symref";
+ return;
+ }
+
if ((item = string_list_lookup(list, dst_name)) == NULL)
return;
return 1;
}
-static void add_one_alternate_ref(const struct ref *ref, void *unused)
+static void add_one_alternate_sha1(const unsigned char sha1[20], void *unused)
+{
+ add_extra_ref(".have", sha1, 0);
+}
+
+static void collect_one_alternate_ref(const struct ref *ref, void *data)
{
- add_extra_ref(".have", ref->old_sha1, 0);
+ struct sha1_array *sa = data;
+ sha1_array_append(sa, ref->old_sha1);
}
static void add_alternate_refs(void)
{
- foreach_alt_odb(refs_from_alternate_cb, add_one_alternate_ref);
+ struct sha1_array sa = SHA1_ARRAY_INIT;
+ for_each_alternate_ref(collect_one_alternate_ref, &sa);
+ sha1_array_for_each_unique(&sa, add_one_alternate_sha1, NULL);
+ sha1_array_clear(&sa);
}
int cmd_receive_pack(int argc, const char **argv, const char *prefix)