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

   1#include "builtin.h"
   2#include "cache.h"
   3#include "transport.h"
   4#include "ref-filter.h"
   5#include "remote.h"
   6#include "refs.h"
   7
   8static const char * const ls_remote_usage[] = {
   9        N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
  10           "                     [-q | --quiet] [--exit-code] [--get-url]\n"
  11           "                     [--symref] [<repository> [<refs>...]]"),
  12        NULL
  13};
  14
  15/*
  16 * Is there one among the list of patterns that match the tail part
  17 * of the path?
  18 */
  19static int tail_match(const char **pattern, const char *path)
  20{
  21        const char *p;
  22        char *pathbuf;
  23
  24        if (!pattern)
  25                return 1; /* no restriction */
  26
  27        pathbuf = xstrfmt("/%s", path);
  28        while ((p = *(pattern++)) != NULL) {
  29                if (!wildmatch(p, pathbuf, 0)) {
  30                        free(pathbuf);
  31                        return 1;
  32                }
  33        }
  34        free(pathbuf);
  35        return 0;
  36}
  37
  38int cmd_ls_remote(int argc, const char **argv, const char *prefix)
  39{
  40        const char *dest = NULL;
  41        unsigned flags = 0;
  42        int get_url = 0;
  43        int quiet = 0;
  44        int status = 0;
  45        int show_symref_target = 0;
  46        const char *uploadpack = NULL;
  47        const char **pattern = NULL;
  48        struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
  49        int i;
  50        struct string_list server_options = STRING_LIST_INIT_DUP;
  51
  52        struct remote *remote;
  53        struct transport *transport;
  54        const struct ref *ref;
  55        struct ref_array ref_array;
  56        static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
  57
  58        struct option options[] = {
  59                OPT__QUIET(&quiet, N_("do not print remote URL")),
  60                OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
  61                           N_("path of git-upload-pack on the remote host")),
  62                { OPTION_STRING, 0, "exec", &uploadpack, N_("exec"),
  63                           N_("path of git-upload-pack on the remote host"),
  64                           PARSE_OPT_HIDDEN },
  65                OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
  66                OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS),
  67                OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
  68                OPT_BOOL(0, "get-url", &get_url,
  69                         N_("take url.<base>.insteadOf into account")),
  70                OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"),
  71                             N_("field name to sort on"), &parse_opt_ref_sorting),
  72                OPT_SET_INT_F(0, "exit-code", &status,
  73                              N_("exit with exit code 2 if no matching refs are found"),
  74                              2, PARSE_OPT_NOCOMPLETE),
  75                OPT_BOOL(0, "symref", &show_symref_target,
  76                         N_("show underlying ref in addition to the object pointed by it")),
  77                OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
  78                OPT_END()
  79        };
  80
  81        memset(&ref_array, 0, sizeof(ref_array));
  82
  83        argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
  84                             PARSE_OPT_STOP_AT_NON_OPTION);
  85        dest = argv[0];
  86
  87        if (argc > 1) {
  88                int i;
  89                pattern = xcalloc(argc, sizeof(const char *));
  90                for (i = 1; i < argc; i++) {
  91                        pattern[i - 1] = xstrfmt("*/%s", argv[i]);
  92                }
  93        }
  94
  95        if (flags & REF_TAGS)
  96                argv_array_push(&ref_prefixes, "refs/tags/");
  97        if (flags & REF_HEADS)
  98                argv_array_push(&ref_prefixes, "refs/heads/");
  99
 100        remote = remote_get(dest);
 101        if (!remote) {
 102                if (dest)
 103                        die("bad repository '%s'", dest);
 104                die("No remote configured to list refs from.");
 105        }
 106        if (!remote->url_nr)
 107                die("remote %s has no configured URL", dest);
 108
 109        if (get_url) {
 110                printf("%s\n", *remote->url);
 111                UNLEAK(sorting);
 112                return 0;
 113        }
 114
 115        transport = transport_get(remote, NULL);
 116        if (uploadpack != NULL)
 117                transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 118        if (server_options.nr)
 119                transport->server_options = &server_options;
 120
 121        ref = transport_get_remote_refs(transport, &ref_prefixes);
 122        if (transport_disconnect(transport)) {
 123                UNLEAK(sorting);
 124                return 1;
 125        }
 126
 127        if (!dest && !quiet)
 128                fprintf(stderr, "From %s\n", *remote->url);
 129        for ( ; ref; ref = ref->next) {
 130                struct ref_array_item *item;
 131                if (!check_ref_type(ref, flags))
 132                        continue;
 133                if (!tail_match(pattern, ref->name))
 134                        continue;
 135                item = ref_array_push(&ref_array, ref->name, &ref->old_oid);
 136                item->symref = xstrdup_or_null(ref->symref);
 137        }
 138
 139        if (sorting)
 140                ref_array_sort(sorting, &ref_array);
 141
 142        for (i = 0; i < ref_array.nr; i++) {
 143                const struct ref_array_item *ref = ref_array.items[i];
 144                if (show_symref_target && ref->symref)
 145                        printf("ref: %s\t%s\n", ref->symref, ref->refname);
 146                printf("%s\t%s\n", oid_to_hex(&ref->objectname), ref->refname);
 147                status = 0; /* we found something */
 148        }
 149
 150        UNLEAK(sorting);
 151        ref_array_clear(&ref_array);
 152        return status;
 153}