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authorJunio C Hamano <gitster@pobox.com>2008-02-12 00:47:07 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-02-12 00:47:07 (GMT)
commit40aab8119f38c622f58d8e612e7a632eb1f3ded2 (patch)
treeb7f492f0a23620c8399b073d6cfec9375f1ce470
parente3560df69d5ff8047bb82524ef23f7c08c729b64 (diff)
parentfb32c9172a1f2828d75f5d17d8ceea8ffe692f2a (diff)
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Merge branch 'db/no-separate-ls-remote-connection' (early part)
* 'db/no-separate-ls-remote-connection' (early part): Fix "git clone" for git:// protocol Reduce the number of connects when fetching
-rw-r--r--builtin-fetch-pack.c75
-rw-r--r--builtin-fetch.c2
-rw-r--r--builtin-ls-remote.c1
-rw-r--r--connect.c20
-rw-r--r--fetch-pack.h2
-rw-r--r--transport.c51
6 files changed, 95 insertions, 56 deletions
diff --git a/builtin-fetch-pack.c b/builtin-fetch-pack.c
index e68e015..f401352 100644
--- a/builtin-fetch-pack.c
+++ b/builtin-fetch-pack.c
@@ -7,6 +7,7 @@
#include "pack.h"
#include "sideband.h"
#include "fetch-pack.h"
+#include "remote.h"
#include "run-command.h"
static int transfer_unpack_limit = -1;
@@ -548,14 +549,14 @@ static int get_pack(int xd[2], char **pack_lockfile)
}
static struct ref *do_fetch_pack(int fd[2],
+ const struct ref *orig_ref,
int nr_match,
char **match,
char **pack_lockfile)
{
- struct ref *ref;
+ struct ref *ref = copy_ref_list(orig_ref);
unsigned char sha1[20];
- get_remote_heads(fd[0], &ref, 0, NULL, 0);
if (is_repository_shallow() && !server_supports("shallow"))
die("Server does not support shallow clients");
if (server_supports("multi_ack")) {
@@ -573,10 +574,6 @@ static struct ref *do_fetch_pack(int fd[2],
fprintf(stderr, "Server supports side-band\n");
use_sideband = 1;
}
- if (!ref) {
- packet_flush(fd[1]);
- die("no matching remote head");
- }
if (everything_local(&ref, nr_match, match)) {
packet_flush(fd[1]);
goto all_done;
@@ -650,8 +647,10 @@ static void fetch_pack_setup(void)
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret, nr_heads;
- struct ref *ref;
+ struct ref *ref = NULL;
char *dest = NULL, **heads;
+ int fd[2];
+ struct child_process *conn;
nr_heads = 0;
heads = NULL;
@@ -706,9 +705,33 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
if (!dest)
usage(fetch_pack_usage);
- ref = fetch_pack(&args, dest, nr_heads, heads, NULL);
+ conn = git_connect(fd, (char *)dest, args.uploadpack,
+ args.verbose ? CONNECT_VERBOSE : 0);
+ if (conn) {
+ get_remote_heads(fd[0], &ref, 0, NULL, 0);
+
+ ref = fetch_pack(&args, fd, conn, ref, dest, nr_heads, heads, NULL);
+ close(fd[0]);
+ close(fd[1]);
+ if (finish_connect(conn))
+ ref = NULL;
+ } else {
+ ref = NULL;
+ }
ret = !ref;
+ if (!ret && nr_heads) {
+ /* If the heads to pull were given, we should have
+ * consumed all of them by matching the remote.
+ * Otherwise, 'git-fetch remote no-such-ref' would
+ * silently succeed without issuing an error.
+ */
+ for (i = 0; i < nr_heads; i++)
+ if (heads[i] && heads[i][0]) {
+ error("no such remote ref %s", heads[i]);
+ ret = 1;
+ }
+ }
while (ref) {
printf("%s %s\n",
sha1_to_hex(ref->old_sha1), ref->name);
@@ -719,16 +742,15 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
}
struct ref *fetch_pack(struct fetch_pack_args *my_args,
+ int fd[], struct child_process *conn,
+ const struct ref *ref,
const char *dest,
int nr_heads,
char **heads,
char **pack_lockfile)
{
- int i, ret;
- int fd[2];
- struct child_process *conn;
- struct ref *ref;
struct stat st;
+ struct ref *ref_cpy;
fetch_pack_setup();
memcpy(&args, my_args, sizeof(args));
@@ -737,29 +759,15 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args,
st.st_mtime = 0;
}
- conn = git_connect(fd, (char *)dest, args.uploadpack,
- args.verbose ? CONNECT_VERBOSE : 0);
if (heads && nr_heads)
nr_heads = remove_duplicates(nr_heads, heads);
- ref = do_fetch_pack(fd, nr_heads, heads, pack_lockfile);
- close(fd[0]);
- close(fd[1]);
- ret = finish_connect(conn);
-
- if (!ret && nr_heads) {
- /* If the heads to pull were given, we should have
- * consumed all of them by matching the remote.
- * Otherwise, 'git-fetch remote no-such-ref' would
- * silently succeed without issuing an error.
- */
- for (i = 0; i < nr_heads; i++)
- if (heads[i] && heads[i][0]) {
- error("no such remote ref %s", heads[i]);
- ret = 1;
- }
+ if (!ref) {
+ packet_flush(fd[1]);
+ die("no matching remote head");
}
+ ref_cpy = do_fetch_pack(fd, ref, nr_heads, heads, pack_lockfile);
- if (!ret && args.depth > 0) {
+ if (args.depth > 0) {
struct cache_time mtime;
char *shallow = git_path("shallow");
int fd;
@@ -787,8 +795,5 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args,
}
}
- if (ret)
- ref = NULL;
-
- return ref;
+ return ref_cpy;
}
diff --git a/builtin-fetch.c b/builtin-fetch.c
index 320e235..ac335f2 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -557,6 +557,8 @@ static int do_fetch(struct transport *transport,
free_refs(fetch_map);
+ transport_disconnect(transport);
+
return 0;
}
diff --git a/builtin-ls-remote.c b/builtin-ls-remote.c
index 6dd31d1..0237549 100644
--- a/builtin-ls-remote.c
+++ b/builtin-ls-remote.c
@@ -94,6 +94,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix)
transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
ref = transport_get_remote_refs(transport);
+ transport_disconnect(transport);
if (!ref)
return 1;
diff --git a/connect.c b/connect.c
index 71597d4..5ac3572 100644
--- a/connect.c
+++ b/connect.c
@@ -474,14 +474,18 @@ char *get_port(char *host)
return NULL;
}
+static struct child_process no_fork;
+
/*
- * This returns NULL if the transport protocol does not need fork(2), or a
- * struct child_process object if it does. Once done, finish the connection
- * with finish_connect() with the value returned from this function
- * (it is safe to call finish_connect() with NULL to support the former
- * case).
+ * This returns a dummy child_process if the transport protocol does not
+ * need fork(2), or a struct child_process object if it does. Once done,
+ * finish the connection with finish_connect() with the value returned from
+ * this function (it is safe to call finish_connect() with NULL to support
+ * the former case).
*
- * If it returns, the connect is successful; it just dies on errors.
+ * If it returns, the connect is successful; it just dies on errors (this
+ * will hopefully be changed in a libification effort, to return NULL when
+ * the connection failed).
*/
struct child_process *git_connect(int fd[2], const char *url_orig,
const char *prog, int flags)
@@ -579,7 +583,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
free(url);
if (free_path)
free(path);
- return NULL;
+ return &no_fork;
}
conn = xcalloc(1, sizeof(*conn));
@@ -637,7 +641,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
int finish_connect(struct child_process *conn)
{
int code;
- if (!conn)
+ if (!conn || conn == &no_fork)
return 0;
code = finish_command(conn);
diff --git a/fetch-pack.h b/fetch-pack.h
index a7888ea..8d35ef6 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -16,6 +16,8 @@ struct fetch_pack_args
};
struct ref *fetch_pack(struct fetch_pack_args *args,
+ int fd[], struct child_process *conn,
+ const struct ref *ref,
const char *dest,
int nr_heads,
char **heads,
diff --git a/transport.c b/transport.c
index 497f853..397983d 100644
--- a/transport.c
+++ b/transport.c
@@ -562,6 +562,8 @@ struct git_transport_data {
unsigned thin : 1;
unsigned keep : 1;
int depth;
+ struct child_process *conn;
+ int fd[2];
const char *uploadpack;
const char *receivepack;
};
@@ -592,20 +594,20 @@ static int set_git_option(struct transport *connection,
return 1;
}
+static int connect_setup(struct transport *transport)
+{
+ struct git_transport_data *data = transport->data;
+ data->conn = git_connect(data->fd, transport->url, data->uploadpack, 0);
+ return 0;
+}
+
static struct ref *get_refs_via_connect(struct transport *transport)
{
struct git_transport_data *data = transport->data;
struct ref *refs;
- int fd[2];
- char *dest = xstrdup(transport->url);
- struct child_process *conn = git_connect(fd, dest, data->uploadpack, 0);
- get_remote_heads(fd[0], &refs, 0, NULL, 0);
- packet_flush(fd[1]);
-
- finish_connect(conn);
-
- free(dest);
+ connect_setup(transport);
+ get_remote_heads(data->fd[0], &refs, 0, NULL, 0);
return refs;
}
@@ -616,7 +618,7 @@ static int fetch_refs_via_pack(struct transport *transport,
struct git_transport_data *data = transport->data;
char **heads = xmalloc(nr_heads * sizeof(*heads));
char **origh = xmalloc(nr_heads * sizeof(*origh));
- struct ref *refs;
+ const struct ref *refs;
char *dest = xstrdup(transport->url);
struct fetch_pack_args args;
int i;
@@ -631,13 +633,27 @@ static int fetch_refs_via_pack(struct transport *transport,
for (i = 0; i < nr_heads; i++)
origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
- refs = fetch_pack(&args, dest, nr_heads, heads, &transport->pack_lockfile);
+
+ refs = transport_get_remote_refs(transport);
+ if (!data->conn) {
+ struct ref *refs_tmp;
+ connect_setup(transport);
+ get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0);
+ free_refs(refs_tmp);
+ }
+
+ refs = fetch_pack(&args, data->fd, data->conn, transport->remote_refs,
+ dest, nr_heads, heads, &transport->pack_lockfile);
+ close(data->fd[0]);
+ close(data->fd[1]);
+ if (finish_connect(data->conn))
+ refs = NULL;
+ data->conn = NULL;
for (i = 0; i < nr_heads; i++)
free(origh[i]);
free(origh);
free(heads);
- free_refs(refs);
free(dest);
return (refs ? 0 : -1);
}
@@ -660,7 +676,15 @@ static int git_transport_push(struct transport *transport, int refspec_nr, const
static int disconnect_git(struct transport *transport)
{
- free(transport->data);
+ struct git_transport_data *data = transport->data;
+ if (data->conn) {
+ packet_flush(data->fd[1]);
+ close(data->fd[0]);
+ close(data->fd[1]);
+ finish_connect(data->conn);
+ }
+
+ free(data);
return 0;
}
@@ -720,6 +744,7 @@ struct transport *transport_get(struct remote *remote, const char *url)
ret->disconnect = disconnect_git;
data->thin = 1;
+ data->conn = NULL;
data->uploadpack = "git-upload-pack";
if (remote && remote->uploadpack)
data->uploadpack = remote->uploadpack;