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-rw-r--r--include/git2/push.h30
-rw-r--r--include/git2/remote.h6
-rw-r--r--include/git2/types.h1
-rw-r--r--src/push.c47
-rw-r--r--src/push.h9
-rw-r--r--src/remote.c3
-rw-r--r--tests/online/push_util.h2
7 files changed, 91 insertions, 7 deletions
diff --git a/include/git2/push.h b/include/git2/push.h
index ecabff397..3f850453d 100644
--- a/include/git2/push.h
+++ b/include/git2/push.h
@@ -59,6 +59,36 @@ typedef int (*git_push_transfer_progress)(
size_t bytes,
void* payload);
+/**
+ * Represents an update which will be performed on the remote during push
+ */
+typedef struct {
+ /**
+ * The source name of the reference
+ */
+ char *src_refname;
+ /**
+ * The name of the reference to update on the server
+ */
+ char *dst_refname;
+ /**
+ * The current target of the reference
+ */
+ git_oid src;
+ /**
+ * The new target for the reference
+ */
+ git_oid dst;
+} git_push_update;
+
+/**
+ * @param updates an array containing the updates which will be sent
+ * as commands to the destination.
+ * @param len number of elements in `updates`
+ * @param payload Payload provided by the caller
+ */
+typedef int (*git_push_negotiation)(const git_push_update **updates, size_t len, void *payload);
+
/** @} */
GIT_END_DECL
#endif
diff --git a/include/git2/remote.h b/include/git2/remote.h
index f85c38429..6e88a4680 100644
--- a/include/git2/remote.h
+++ b/include/git2/remote.h
@@ -521,6 +521,12 @@ struct git_remote_callbacks {
int (*push_update_reference)(const char *refname, const char *status, void *data);
/**
+ * Called once between the negotiation step and the upload. It
+ * provides information about what updates will be performed.
+ */
+ git_push_negotiation push_negotiation;
+
+ /**
* This will be passed to each of the callbacks in this struct
* as the last parameter.
*/
diff --git a/include/git2/types.h b/include/git2/types.h
index c90ac4776..fdb5f2b09 100644
--- a/include/git2/types.h
+++ b/include/git2/types.h
@@ -273,6 +273,7 @@ typedef int (*git_transfer_progress_cb)(const git_transfer_progress *stats, void
*/
typedef int (*git_transport_message_cb)(const char *str, int len, void *payload);
+
/**
* Type of host certificate structure that is passed to the check callback
*/
diff --git a/src/push.c b/src/push.c
index d4171bbd6..3ac6fbf63 100644
--- a/src/push.c
+++ b/src/push.c
@@ -54,6 +54,13 @@ int git_push_new(git_push **out, git_remote *remote)
return -1;
}
+ if (git_vector_init(&p->updates, 0, NULL) < 0) {
+ git_vector_free(&p->status);
+ git_vector_free(&p->specs);
+ git__free(p);
+ return -1;
+ }
+
*out = p;
return 0;
}
@@ -75,7 +82,9 @@ int git_push_set_callbacks(
git_packbuilder_progress pack_progress_cb,
void *pack_progress_cb_payload,
git_push_transfer_progress transfer_progress_cb,
- void *transfer_progress_cb_payload)
+ void *transfer_progress_cb_payload,
+ git_push_negotiation negotiation_cb,
+ void *negotiation_cb_payload)
{
if (!push)
return -1;
@@ -86,6 +95,9 @@ int git_push_set_callbacks(
push->transfer_progress_cb = transfer_progress_cb;
push->transfer_progress_cb_payload = transfer_progress_cb_payload;
+ push->negotiation_cb = negotiation_cb;
+ push->negotiation_cb_payload = negotiation_cb_payload;
+
return 0;
}
@@ -534,6 +546,22 @@ on_error:
return error;
}
+static int add_update(git_push *push, push_spec *spec)
+{
+ git_push_update *u = git__calloc(1, sizeof(git_push_update));
+ GITERR_CHECK_ALLOC(u);
+
+ u->src_refname = git__strdup(spec->refspec.src);
+ GITERR_CHECK_ALLOC(u->src_refname);
+ u->dst_refname = git__strdup(spec->refspec.src);
+ GITERR_CHECK_ALLOC(u->dst_refname);
+
+ git_oid_cpy(&u->src, &spec->loid);
+ git_oid_cpy(&u->dst, &spec->roid);
+
+ return git_vector_insert(&push->updates, u);
+}
+
static int calculate_work(git_push *push)
{
git_remote_head *head;
@@ -559,6 +587,9 @@ static int calculate_work(git_push *push)
break;
}
}
+
+ if (add_update(push, spec) < 0)
+ return -1;
}
return 0;
@@ -590,9 +621,17 @@ static int do_push(git_push *push)
if ((error = git_packbuilder_set_callbacks(push->pb, push->pack_progress_cb, push->pack_progress_cb_payload)) < 0)
goto on_error;
- if ((error = calculate_work(push)) < 0 ||
- (error = queue_objects(push)) < 0 ||
- (error = transport->push(transport, push)) < 0)
+ if ((error = calculate_work(push)) < 0)
+ goto on_error;
+
+ if (push->negotiation_cb &&
+ (error = push->negotiation_cb((const git_push_update **) push->updates.contents,
+ push->updates.length,
+ push->negotiation_cb_payload)))
+ goto on_error;
+
+ if ((error = queue_objects(push)) < 0 ||
+ (error = transport->push(transport, push)) < 0)
goto on_error;
on_error:
diff --git a/src/push.h b/src/push.h
index b19d40e03..fb5f01480 100644
--- a/src/push.h
+++ b/src/push.h
@@ -29,6 +29,7 @@ struct git_push {
git_packbuilder *pb;
git_remote *remote;
git_vector specs;
+ git_vector updates;
bool report_status;
/* report-status */
@@ -42,6 +43,8 @@ struct git_push {
void *pack_progress_cb_payload;
git_push_transfer_progress transfer_progress_cb;
void *transfer_progress_cb_payload;
+ git_push_negotiation negotiation_cb;
+ void *negotiation_cb_payload;
};
/**
@@ -85,6 +88,8 @@ int git_push_set_options(
* the upload portion of a push. Be aware that this is called inline with
* pack building operations, so performance may be affected.
* @param transfer_progress_cb_payload Payload for the network progress callback.
+ * @param push_negotiation_cb Function to call before sending the commands to the remote.
+ * @param push_negotiation_cb_payload Payload for the negotiation callback
* @return 0 or an error code
*/
int git_push_set_callbacks(
@@ -92,7 +97,9 @@ int git_push_set_callbacks(
git_packbuilder_progress pack_progress_cb,
void *pack_progress_cb_payload,
git_push_transfer_progress transfer_progress_cb,
- void *transfer_progress_cb_payload);
+ void *transfer_progress_cb_payload,
+ git_push_negotiation negotiation_cb,
+ void *negotiation_cb_payload);
/**
* Add a refspec to be pushed
diff --git a/src/remote.c b/src/remote.c
index ac7c43c78..948060da6 100644
--- a/src/remote.c
+++ b/src/remote.c
@@ -2363,7 +2363,8 @@ int git_remote_upload(git_remote *remote, const git_strarray *refspecs, const gi
cbs = &remote->callbacks;
if ((error = git_push_set_callbacks(push,
cbs->pack_progress, cbs->payload,
- cbs->push_transfer_progress, cbs->payload)) < 0)
+ cbs->push_transfer_progress, cbs->payload,
+ cbs->push_negotiation, cbs->payload)) < 0)
goto cleanup;
if ((error = git_push_finish(push)) < 0)
diff --git a/tests/online/push_util.h b/tests/online/push_util.h
index 2e05c4ed7..83d46b506 100644
--- a/tests/online/push_util.h
+++ b/tests/online/push_util.h
@@ -12,7 +12,7 @@ extern const git_oid OID_ZERO;
* @param data pointer to a record_callbacks_data instance
*/
#define RECORD_CALLBACKS_INIT(data) \
- { GIT_REMOTE_CALLBACKS_VERSION, NULL, NULL, cred_acquire_cb, NULL, NULL, record_update_tips_cb, NULL, NULL, NULL, data }
+ { GIT_REMOTE_CALLBACKS_VERSION, NULL, NULL, cred_acquire_cb, NULL, NULL, record_update_tips_cb, NULL, NULL, NULL, NULL, data }
typedef struct {
char *name;