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_REF_SORT(sorting_tail),
  71                OPT_SET_INT_F(0, "exit-code", &status,
  72                              N_("exit with exit code 2 if no matching refs are found"),
  73                              2, PARSE_OPT_NOCOMPLETE),
  74                OPT_BOOL(0, "symref", &show_symref_target,
  75                         N_("show underlying ref in addition to the object pointed by it")),
  76                OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
  77                OPT_END()
  78        };
  79
  80        memset(&ref_array, 0, sizeof(ref_array));
  81
  82        argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
  83                             PARSE_OPT_STOP_AT_NON_OPTION);
  84        dest = argv[0];
  85
  86        if (argc > 1) {
  87                int i;
  88                pattern = xcalloc(argc, sizeof(const char *));
  89                for (i = 1; i < argc; i++) {
  90                        pattern[i - 1] = xstrfmt("*/%s", argv[i]);
  91                }
  92        }
  93
  94        if (flags & REF_TAGS)
  95                argv_array_push(&ref_prefixes, "refs/tags/");
  96        if (flags & REF_HEADS)
  97                argv_array_push(&ref_prefixes, "refs/heads/");
  98
  99        remote = remote_get(dest);
 100        if (!remote) {
 101                if (dest)
 102                        die("bad repository '%s'", dest);
 103                die("No remote configured to list refs from.");
 104        }
 105        if (!remote->url_nr)
 106                die("remote %s has no configured URL", dest);
 107
 108        if (get_url) {
 109                printf("%s\n", *remote->url);
 110                UNLEAK(sorting);
 111                return 0;
 112        }
 113
 114        transport = transport_get(remote, NULL);
 115        if (uploadpack != NULL)
 116                transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 117        if (server_options.nr)
 118                transport->server_options = &server_options;
 119
 120        ref = transport_get_remote_refs(transport, &ref_prefixes);
 121        if (transport_disconnect(transport)) {
 122                UNLEAK(sorting);
 123                return 1;
 124        }
 125
 126        if (!dest && !quiet)
 127                fprintf(stderr, "From %s\n", *remote->url);
 128        for ( ; ref; ref = ref->next) {
 129                struct ref_array_item *item;
 130                if (!check_ref_type(ref, flags))
 131                        continue;
 132                if (!tail_match(pattern, ref->name))
 133                        continue;
 134                item = ref_array_push(&ref_array, ref->name, &ref->old_oid);
 135                item->symref = xstrdup_or_null(ref->symref);
 136        }
 137
 138        if (sorting)
 139                ref_array_sort(sorting, &ref_array);
 140
 141        for (i = 0; i < ref_array.nr; i++) {
 142                const struct ref_array_item *ref = ref_array.items[i];
 143                if (show_symref_target && ref->symref)
 144                        printf("ref: %s\t%s\n", ref->symref, ref->refname);
 145                printf("%s\t%s\n", oid_to_hex(&ref->objectname), ref->refname);
 146                status = 0; /* we found something */
 147        }
 148
 149        UNLEAK(sorting);
 150        ref_array_clear(&ref_array);
 151        return status;
 152}