From 211b5f9e62cc961acda59392fbf5a3efa8106c97 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Fri, 28 Oct 2005 04:48:54 +0200 Subject: [PATCH] Support receiving server capabilities This patch implements the client side of backward compatible upload-pack protocol extension, <20051027141619.0e8029f2.vsu@altlinux.ru> by Sergey. The updated server can append "server_capabilities" which is supposed to be a string containing space separated features of the server, after one of elements in the initial list of SHA1-refname line, hidden with an embedded NUL. After get_remote_heads(), check if the server supports the feature like if (server_supports("multi_ack")) do_something(); Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- cache.h | 1 + connect.c | 16 +++++++++++++++- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/cache.h b/cache.h index 2e36cc5b8b..677c6acc35 100644 --- a/cache.h +++ b/cache.h @@ -340,6 +340,7 @@ extern int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, int nr_refspec, char **refspec, int all); extern int get_ack(int fd, unsigned char *result_sha1); extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, int ignore_funny); +extern int server_supports(const char *feature); extern struct packed_git *parse_pack_index(unsigned char *sha1); extern struct packed_git *parse_pack_index_file(const unsigned char *sha1, diff --git a/connect.c b/connect.c index b171c5dbc8..5cc49f975a 100644 --- a/connect.c +++ b/connect.c @@ -8,6 +8,8 @@ #include #include +static char *server_capabilities = ""; + /* * Read all the refs from the other end */ @@ -20,7 +22,7 @@ struct ref **get_remote_heads(int in, struct ref **list, unsigned char old_sha1[20]; static char buffer[1000]; char *name; - int len; + int len, name_len; len = packet_read_line(in, buffer, sizeof(buffer)); if (!len) @@ -36,6 +38,13 @@ struct ref **get_remote_heads(int in, struct ref **list, check_ref_format(name + 5)) continue; + name_len = strlen(name); + if (len != name_len + 41) { + if (server_capabilities) + free(server_capabilities); + server_capabilities = strdup(name + name_len + 1); + } + if (nr_match && !path_match(name, nr_match, match)) continue; ref = xcalloc(1, sizeof(*ref) + len - 40); @@ -47,6 +56,11 @@ struct ref **get_remote_heads(int in, struct ref **list, return list; } +int server_supports(const char *feature) +{ + return strstr(feature, server_capabilities) != NULL; +} + int get_ack(int fd, unsigned char *result_sha1) { static char line[1000]; -- 2.39.2