t5801: skip without hg
[git/dscho.git] / credential-cache.c
blob9a03792c7de109e957a1f01924c4f66ba87b5c87
1 #include "cache.h"
2 #include "credential.h"
3 #include "string-list.h"
4 #include "parse-options.h"
5 #include "unix-socket.h"
6 #include "run-command.h"
8 #define FLAG_SPAWN 0x1
9 #define FLAG_RELAY 0x2
11 static int send_request(const char *socket, const struct strbuf *out)
13         int got_data = 0;
14         int fd = unix_stream_connect(socket);
16         if (fd < 0)
17                 return -1;
19         if (write_in_full(fd, out->buf, out->len) < 0)
20                 die_errno("unable to write to cache daemon");
21         shutdown(fd, SHUT_WR);
23         while (1) {
24                 char in[1024];
25                 int r;
27                 r = read_in_full(fd, in, sizeof(in));
28                 if (r == 0)
29                         break;
30                 if (r < 0)
31                         die_errno("read error from cache daemon");
32                 write_or_die(1, in, r);
33                 got_data = 1;
34         }
35         return got_data;
38 static void spawn_daemon(const char *socket)
40         struct child_process daemon;
41         const char *argv[] = { NULL, NULL, NULL };
42         char buf[128];
43         int r;
45         memset(&daemon, 0, sizeof(daemon));
46         argv[0] = "git-credential-cache--daemon";
47         argv[1] = socket;
48         daemon.argv = argv;
49         daemon.no_stdin = 1;
50         daemon.out = -1;
52         if (start_command(&daemon))
53                 die_errno("unable to start cache daemon");
54         r = read_in_full(daemon.out, buf, sizeof(buf));
55         if (r < 0)
56                 die_errno("unable to read result code from cache daemon");
57         if (r != 3 || memcmp(buf, "ok\n", 3))
58                 die("cache daemon did not start: %.*s", r, buf);
59         close(daemon.out);
62 static void do_cache(const char *socket, const char *action, int timeout,
63                      int flags)
65         struct strbuf buf = STRBUF_INIT;
67         strbuf_addf(&buf, "action=%s\n", action);
68         strbuf_addf(&buf, "timeout=%d\n", timeout);
69         if (flags & FLAG_RELAY) {
70                 if (strbuf_read(&buf, 0, 0) < 0)
71                         die_errno("unable to relay credential");
72         }
74         if (send_request(socket, &buf) < 0) {
75                 if (errno != ENOENT && errno != ECONNREFUSED)
76                         die_errno("unable to connect to cache daemon");
77                 if (flags & FLAG_SPAWN) {
78                         spawn_daemon(socket);
79                         if (send_request(socket, &buf) < 0)
80                                 die_errno("unable to connect to cache daemon");
81                 }
82         }
83         strbuf_release(&buf);
86 int main(int argc, const char **argv)
88         char *socket_path = NULL;
89         int timeout = 900;
90         const char *op;
91         const char * const usage[] = {
92                 "git credential-cache [options] <action>",
93                 NULL
94         };
95         struct option options[] = {
96                 OPT_INTEGER(0, "timeout", &timeout,
97                             "number of seconds to cache credentials"),
98                 OPT_STRING(0, "socket", &socket_path, "path",
99                            "path of cache-daemon socket"),
100                 OPT_END()
101         };
103         argc = parse_options(argc, argv, NULL, options, usage, 0);
104         if (!argc)
105                 usage_with_options(usage, options);
106         op = argv[0];
108         if (!socket_path)
109                 socket_path = expand_user_path("~/.git-credential-cache/socket");
110         if (!socket_path)
111                 die("unable to find a suitable socket path; use --socket");
113         if (!strcmp(op, "exit"))
114                 do_cache(socket_path, op, timeout, 0);
115         else if (!strcmp(op, "get") || !strcmp(op, "erase"))
116                 do_cache(socket_path, op, timeout, FLAG_RELAY);
117         else if (!strcmp(op, "store"))
118                 do_cache(socket_path, op, timeout, FLAG_RELAY|FLAG_SPAWN);
119         else
120                 ; /* ignore unknown operation */
122         return 0;