builtin/bundle.c

   1 #include "builtin.h"
   2 #include "strvec.h"
   3 #include "parse-options.h"
   4 #include "cache.h"
   5 #include "bundle.h"
   6
   7 /*
   8  * Basic handler for bundle files to connect repositories via sneakernet.
   9  * Invocation must include action.
  10  * This function can create a bundle or provide information on an existing
  11  * bundle supporting "fetch", "pull", and "ls-remote".
  12  */
  13
  14 static const char * const builtin_bundle_usage[] = {
  15   N_("git bundle create [<options>] <file> <git-rev-list args>"),
  16   N_("git bundle verify [<options>] <file>"),
  17   N_("git bundle list-heads <file> [<refname>...]"),
  18   N_("git bundle unbundle <file> [<refname>...]"),
  19   NULL
  20 };
  21
  22 static const char * const builtin_bundle_create_usage[] = {
  23   N_("git bundle create [<options>] <file> <git-rev-list args>"),
  24   NULL
  25 };
  26
  27 static const char * const builtin_bundle_verify_usage[] = {
  28   N_("git bundle verify [<options>] <file>"),
  29   NULL
  30 };
  31
  32 static const char * const builtin_bundle_list_heads_usage[] = {
  33   N_("git bundle list-heads <file> [<refname>...]"),
  34   NULL
  35 };
  36
  37 static const char * const builtin_bundle_unbundle_usage[] = {
  38   N_("git bundle unbundle <file> [<refname>...]"),
  39   NULL
  40 };
  41
  42 static int verbose;
  43
  44 static int parse_options_cmd_bundle(int argc,
  45                 const char **argv,
  46                 const char* prefix,
  47                 const char * const usagestr[],
  48                 const struct option options[],
  49                 char **bundle_file) {
  50         int newargc;
  51         newargc = parse_options(argc, argv, NULL, options, usagestr,
  52                              PARSE_OPT_STOP_AT_NON_OPTION);
  53         if (argc < 1)
  54                 usage_with_options(usagestr, options);
  55         *bundle_file = prefix_filename(prefix, argv[0]);
  56         return newargc;
  57 }
  58
  59 static int cmd_bundle_create(int argc, const char **argv, const char *prefix) {
  60         int all_progress_implied = 0;
  61         int progress = isatty(STDERR_FILENO);
  62         struct strvec pack_opts;
  63         int version = -1;
  64         int ret;
  65         struct option options[] = {
  66                 OPT_SET_INT('q', "quiet", &progress,
  67                             N_("do not show progress meter"), 0),
  68                 OPT_SET_INT(0, "progress", &progress,
  69                             N_("show progress meter"), 1),
  70                 OPT_SET_INT(0, "all-progress", &progress,
  71                             N_("show progress meter during object writing phase"), 2),
  72                 OPT_BOOL(0, "all-progress-implied",
  73                          &all_progress_implied,
  74                          N_("similar to --all-progress when progress meter is shown")),
  75                 OPT_INTEGER(0, "version", &version,
  76                             N_("specify bundle format version")),
  77                 OPT_END()
  78         };
  79         char *bundle_file;
  80
  81         argc = parse_options_cmd_bundle(argc, argv, prefix,
  82                         builtin_bundle_create_usage, options, &bundle_file);
  83         /* bundle internals use argv[1] as further parameters */
  84
  85         strvec_init(&pack_opts);
  86         if (progress == 0)
  87                 strvec_push(&pack_opts, "--quiet");
  88         else if (progress == 1)
  89                 strvec_push(&pack_opts, "--progress");
  90         else if (progress == 2)
  91                 strvec_push(&pack_opts, "--all-progress");
  92         if (progress && all_progress_implied)
  93                 strvec_push(&pack_opts, "--all-progress-implied");
  94
  95         if (!startup_info->have_repository)
  96                 die(_("Need a repository to create a bundle."));
  97         ret = !!create_bundle(the_repository, bundle_file, argc, argv, &pack_opts, version);
  98         free(bundle_file);
  99         return ret;
 100 }
 101
 102 static int cmd_bundle_verify(int argc, const char **argv, const char *prefix) {
 103         struct bundle_header header = BUNDLE_HEADER_INIT;
 104         int bundle_fd = -1;
 105         int quiet = 0;
 106         int ret;
 107         struct option options[] = {
 108                 OPT_BOOL('q', "quiet", &quiet,
 109                             N_("do not show bundle details")),
 110                 OPT_END()
 111         };
 112         char *bundle_file;
 113
 114         argc = parse_options_cmd_bundle(argc, argv, prefix,
 115                         builtin_bundle_verify_usage, options, &bundle_file);
 116         /* bundle internals use argv[1] as further parameters */
 117
 118         if ((bundle_fd = read_bundle_header(bundle_file, &header)) < 0) {
 119                 ret = 1;
 120                 goto cleanup;
 121         }
 122         close(bundle_fd);
 123         if (verify_bundle(the_repository, &header, !quiet)) {
 124                 ret = 1;
 125                 goto cleanup;
 126         }
 127
 128         fprintf(stderr, _("%s is okay\n"), bundle_file);
 129         ret = 0;
 130 cleanup:
 131         free(bundle_file);
 132         bundle_header_release(&header);
 133         return ret;
 134 }
 135
 136 static int cmd_bundle_list_heads(int argc, const char **argv, const char *prefix) {
 137         struct bundle_header header = BUNDLE_HEADER_INIT;
 138         int bundle_fd = -1;
 139         int ret;
 140         struct option options[] = {
 141                 OPT_END()
 142         };
 143         char *bundle_file;
 144
 145         argc = parse_options_cmd_bundle(argc, argv, prefix,
 146                         builtin_bundle_list_heads_usage, options, &bundle_file);
 147         /* bundle internals use argv[1] as further parameters */
 148
 149         if ((bundle_fd = read_bundle_header(bundle_file, &header)) < 0) {
 150                 ret = 1;
 151                 goto cleanup;
 152         }
 153         close(bundle_fd);
 154         ret = !!list_bundle_refs(&header, argc, argv);
 155 cleanup:
 156         free(bundle_file);
 157         bundle_header_release(&header);
 158         return ret;
 159 }
 160
 161 static int cmd_bundle_unbundle(int argc, const char **argv, const char *prefix) {
 162         struct bundle_header header = BUNDLE_HEADER_INIT;
 163         int bundle_fd = -1;
 164         int ret;
 165         struct option options[] = {
 166                 OPT_END()
 167         };
 168         char *bundle_file;
 169
 170         argc = parse_options_cmd_bundle(argc, argv, prefix,
 171                         builtin_bundle_unbundle_usage, options, &bundle_file);
 172         /* bundle internals use argv[1] as further parameters */
 173
 174         if ((bundle_fd = read_bundle_header(bundle_file, &header)) < 0) {
 175                 ret = 1;
 176                 goto cleanup;
 177         }
 178         if (!startup_info->have_repository)
 179                 die(_("Need a repository to unbundle."));
 180         ret = !!unbundle(the_repository, &header, bundle_fd, 0) ||
 181                 list_bundle_refs(&header, argc, argv);
 182         bundle_header_release(&header);
 183 cleanup:
 184         free(bundle_file);
 185         return ret;
 186 }
 187
 188 int cmd_bundle(int argc, const char **argv, const char *prefix)
 189 {
 190         struct option options[] = {
 191                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
 192                 OPT_END()
 193         };
 194         int result;
 195
 196         argc = parse_options(argc, argv, prefix, options, builtin_bundle_usage,
 197                 PARSE_OPT_STOP_AT_NON_OPTION);
 198
 199         packet_trace_identity("bundle");
 200
 201         if (argc < 2)
 202                 usage_with_options(builtin_bundle_usage, options);
 203
 204         else if (!strcmp(argv[0], "create"))
 205                 result = cmd_bundle_create(argc, argv, prefix);
 206         else if (!strcmp(argv[0], "verify"))
 207                 result = cmd_bundle_verify(argc, argv, prefix);
 208         else if (!strcmp(argv[0], "list-heads"))
 209                 result = cmd_bundle_list_heads(argc, argv, prefix);
 210         else if (!strcmp(argv[0], "unbundle"))
 211                 result = cmd_bundle_unbundle(argc, argv, prefix);
 212         else {
 213                 error(_("Unknown subcommand: %s"), argv[0]);
 214                 usage_with_options(builtin_bundle_usage, options);
 215         }
 216         return result ? 1 : 0;
 217 }