| 265 | } |
| 266 | |
| 267 | int execute_diff(const po::variables_map &vm, |
| 268 | const std::vector<std::string> &ceph_global_init_args) { |
| 269 | size_t arg_index = 0; |
| 270 | std::string pool_name; |
| 271 | std::string namespace_name; |
| 272 | std::string image_name; |
| 273 | std::string snap_name; |
| 274 | int r = utils::get_pool_image_snapshot_names( |
| 275 | vm, at::ARGUMENT_MODIFIER_SOURCE, &arg_index, &pool_name, &namespace_name, |
| 276 | &image_name, &snap_name, true, utils::SNAPSHOT_PRESENCE_PERMITTED, |
| 277 | utils::SPEC_VALIDATION_NONE); |
| 278 | if (r < 0) { |
| 279 | return r; |
| 280 | } |
| 281 | |
| 282 | std::string path; |
| 283 | r = utils::get_path(vm, &arg_index, &path); |
| 284 | if (r < 0) { |
| 285 | return r; |
| 286 | } |
| 287 | |
| 288 | std::string from_snap_name; |
| 289 | if (vm.count(at::FROM_SNAPSHOT_NAME)) { |
| 290 | from_snap_name = vm[at::FROM_SNAPSHOT_NAME].as<std::string>(); |
| 291 | } |
| 292 | |
| 293 | librados::Rados rados; |
| 294 | librados::IoCtx io_ctx; |
| 295 | librbd::Image image; |
| 296 | r = utils::init_and_open_image(pool_name, namespace_name, image_name, "", |
| 297 | snap_name, true, &rados, &io_ctx, &image); |
| 298 | if (r < 0) { |
| 299 | return r; |
| 300 | } |
| 301 | |
| 302 | r = do_export_diff(image, |
| 303 | from_snap_name.empty() ? nullptr : from_snap_name.c_str(), |
| 304 | snap_name.empty() ? nullptr : snap_name.c_str(), |
| 305 | vm[at::WHOLE_OBJECT].as<bool>(), path.c_str(), |
| 306 | vm[at::NO_PROGRESS].as<bool>()); |
| 307 | if (r < 0) { |
| 308 | std::cerr << "rbd: export-diff error: " << cpp_strerror(r) << std::endl; |
| 309 | return r; |
| 310 | } |
| 311 | return 0; |
| 312 | } |
| 313 | |
| 314 | Shell::Action action_diff( |
| 315 | {"export-diff"}, {}, "Export incremental diff to file.", "", |
nothing calls this directly
no test coverage detected