Andrew's git - gitweb.git/blob - builtin/ls-remote.c

   1#include "builtin.h"
   2#include "cache.h"
   3#include "transport.h"
   4#include "remote.h"
   5
   6static const char ls_remote_usage[] =
   7"git ls-remote [--heads] [--tags]  [--upload-pack=<exec>]\n"
   8"                     [-q | --quiet] [--exit-code] [--get-url] [<repository> [<refs>...]]";
   9
  10/*
  11 * Is there one among the list of patterns that match the tail part
  12 * of the path?
  13 */
  14static int tail_match(const char **pattern, const char *path)
  15{
  16        const char *p;
  17        char pathbuf[PATH_MAX];
  18
  19        if (!pattern)
  20                return 1; /* no restriction */
  21
  22        if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
  23                return error("insanely long ref %.*s...", 20, path);
  24        while ((p = *(pattern++)) != NULL) {
  25                if (!wildmatch(p, pathbuf, 0, NULL))
  26                        return 1;
  27        }
  28        return 0;
  29}
  30
  31int cmd_ls_remote(int argc, const char **argv, const char *prefix)
  32{
  33        int i;
  34        const char *dest = NULL;
  35        unsigned flags = 0;
  36        int get_url = 0;
  37        int quiet = 0;
  38        int status = 0;
  39        const char *uploadpack = NULL;
  40        const char **pattern = NULL;
  41
  42        struct remote *remote;
  43        struct transport *transport;
  44        const struct ref *ref;
  45
  46        if (argc == 2 && !strcmp("-h", argv[1]))
  47                usage(ls_remote_usage);
  48
  49        for (i = 1; i < argc; i++) {
  50                const char *arg = argv[i];
  51
  52                if (*arg == '-') {
  53                        if (starts_with(arg, "--upload-pack=")) {
  54                                uploadpack = arg + 14;
  55                                continue;
  56                        }
  57                        if (starts_with(arg, "--exec=")) {
  58                                uploadpack = arg + 7;
  59                                continue;
  60                        }
  61                        if (!strcmp("--tags", arg) || !strcmp("-t", arg)) {
  62                                flags |= REF_TAGS;
  63                                continue;
  64                        }
  65                        if (!strcmp("--heads", arg) || !strcmp("-h", arg)) {
  66                                flags |= REF_HEADS;
  67                                continue;
  68                        }
  69                        if (!strcmp("--refs", arg)) {
  70                                flags |= REF_NORMAL;
  71                                continue;
  72                        }
  73                        if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
  74                                quiet = 1;
  75                                continue;
  76                        }
  77                        if (!strcmp("--get-url", arg)) {
  78                                get_url = 1;
  79                                continue;
  80                        }
  81                        if (!strcmp("--exit-code", arg)) {
  82                                /* return this code if no refs are reported */
  83                                status = 2;
  84                                continue;
  85                        }
  86                        usage(ls_remote_usage);
  87                }
  88                dest = arg;
  89                i++;
  90                break;
  91        }
  92
  93        if (argv[i]) {
  94                int j;
  95                pattern = xcalloc(argc - i + 1, sizeof(const char *));
  96                for (j = i; j < argc; j++) {
  97                        int len = strlen(argv[j]);
  98                        char *p = xmalloc(len + 3);
  99                        sprintf(p, "*/%s", argv[j]);
 100                        pattern[j - i] = p;
 101                }
 102        }
 103        remote = remote_get(dest);
 104        if (!remote) {
 105                if (dest)
 106                        die("bad repository '%s'", dest);
 107                die("No remote configured to list refs from.");
 108        }
 109        if (!remote->url_nr)
 110                die("remote %s has no configured URL", dest);
 111
 112        if (get_url) {
 113                printf("%s\n", *remote->url);
 114                return 0;
 115        }
 116
 117        transport = transport_get(remote, NULL);
 118        if (uploadpack != NULL)
 119                transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 120
 121        ref = transport_get_remote_refs(transport);
 122        if (transport_disconnect(transport))
 123                return 1;
 124
 125        if (!dest && !quiet)
 126                fprintf(stderr, "From %s\n", *remote->url);
 127        for ( ; ref; ref = ref->next) {
 128                if (!check_ref_type(ref, flags))
 129                        continue;
 130                if (!tail_match(pattern, ref->name))
 131                        continue;
 132                printf("%s      %s\n", sha1_to_hex(ref->old_sha1), ref->name);
 133                status = 0; /* we found something */
 134        }
 135        return status;
 136}