mirror of
https://github.com/git/git
synced 2024-09-13 21:34:42 +00:00
f71a69ab05
HPA reminded me that these programs knows about the name of the counterpart on the other end and simply symlinking the old name to new name locally would not be enough. Signed-off-by: Junio C Hamano <junkio@cox.net>
143 lines
2.8 KiB
C
143 lines
2.8 KiB
C
#ifndef COUNTERPART_ENV_NAME
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#define COUNTERPART_ENV_NAME "GIT_SSH_UPLOAD"
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#endif
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#ifndef COUNTERPART_PROGRAM_NAME
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#define COUNTERPART_PROGRAM_NAME "git-ssh-upload"
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#endif
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#ifndef MY_PROGRAM_NAME
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#define MY_PROGRAM_NAME "git-ssh-fetch"
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#endif
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#include "cache.h"
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#include "commit.h"
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#include "rsh.h"
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#include "fetch.h"
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#include "refs.h"
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static int fd_in;
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static int fd_out;
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static unsigned char remote_version = 0;
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static unsigned char local_version = 1;
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static ssize_t force_write(int fd, void *buffer, size_t length)
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{
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ssize_t ret = 0;
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while (ret < length) {
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ssize_t size = write(fd, buffer + ret, length - ret);
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if (size < 0) {
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return size;
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}
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if (size == 0) {
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return ret;
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}
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ret += size;
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}
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return ret;
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}
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void prefetch(unsigned char *sha1)
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{
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char type = 'o';
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force_write(fd_out, &type, 1);
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force_write(fd_out, sha1, 20);
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//memcpy(requested + 20 * prefetches++, sha1, 20);
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}
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static char conn_buf[4096];
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static size_t conn_buf_posn = 0;
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int fetch(unsigned char *sha1)
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{
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int ret;
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signed char remote;
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if (conn_buf_posn) {
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remote = conn_buf[0];
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memmove(conn_buf, conn_buf + 1, --conn_buf_posn);
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} else {
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if (read(fd_in, &remote, 1) < 1)
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return -1;
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}
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//fprintf(stderr, "Got %d\n", remote);
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if (remote < 0)
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return remote;
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ret = write_sha1_from_fd(sha1, fd_in, conn_buf, 4096, &conn_buf_posn);
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if (!ret)
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pull_say("got %s\n", sha1_to_hex(sha1));
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return ret;
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}
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static int get_version(void)
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{
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char type = 'v';
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write(fd_out, &type, 1);
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write(fd_out, &local_version, 1);
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if (read(fd_in, &remote_version, 1) < 1) {
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return error("Couldn't read version from remote end");
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}
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return 0;
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}
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int fetch_ref(char *ref, unsigned char *sha1)
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{
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signed char remote;
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char type = 'r';
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write(fd_out, &type, 1);
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write(fd_out, ref, strlen(ref) + 1);
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read(fd_in, &remote, 1);
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if (remote < 0)
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return remote;
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read(fd_in, sha1, 20);
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return 0;
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}
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static const char ssh_fetch_usage[] =
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MY_PROGRAM_NAME
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" [-c] [-t] [-a] [-v] [-d] [--recover] [-w ref] commit-id url";
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int main(int argc, char **argv)
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{
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char *commit_id;
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char *url;
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int arg = 1;
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const char *prog;
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prog = getenv("GIT_SSH_PUSH");
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if (!prog) prog = "git-ssh-upload";
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while (arg < argc && argv[arg][0] == '-') {
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if (argv[arg][1] == 't') {
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get_tree = 1;
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} else if (argv[arg][1] == 'c') {
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get_history = 1;
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} else if (argv[arg][1] == 'a') {
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get_all = 1;
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get_tree = 1;
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get_history = 1;
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} else if (argv[arg][1] == 'v') {
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get_verbosely = 1;
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} else if (argv[arg][1] == 'w') {
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write_ref = argv[arg + 1];
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arg++;
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}
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arg++;
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}
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if (argc < arg + 2) {
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usage(ssh_fetch_usage);
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return 1;
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}
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commit_id = argv[arg];
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url = argv[arg + 1];
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if (setup_connection(&fd_in, &fd_out, prog, url, arg, argv + 1))
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return 1;
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if (get_version())
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return 1;
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if (pull(commit_id))
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return 1;
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return 0;
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}
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