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importd: add command to list downloaded images
It's a bit weird we allow importing/pulling/exporting images, but we have no scheme for showing what#s already downloaded. Hence let's add this, it's easy to add after all.
This commit is contained in:
Lennart Poettering
parent
5a985dd05a
commit
5b7bfe0637
@ -884,6 +884,98 @@ static int cancel_transfer(int argc, char *argv[], void *userdata) {
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return 0;
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}
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static int list_images(int argc, char *argv[], void *userdata) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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_cleanup_(table_unrefp) Table *t = NULL;
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sd_bus *bus = ASSERT_PTR(userdata);
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int r;
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pager_open(arg_pager_flags);
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r = bus_call_method(bus, bus_import_mgr, "ListImages", &error, &reply, "st", image_class_to_string(arg_image_class), UINT64_C(0));
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if (r < 0)
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return log_error_errno(r, "Could not list images: %s", bus_error_message(&error, r));
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r = sd_bus_message_enter_container(reply, 'a', "(ssssbtttttt)");
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if (r < 0)
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return bus_log_parse_error(r);
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t = table_new("class", "name", "type", "path", "ro", "crtime", "mtime", "usage", "usage-exclusive", "limit", "limit-exclusive");
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if (!t)
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return log_oom();
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(void) table_set_sort(t, (size_t) 0, (size_t) 1);
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table_set_ersatz_string(t, TABLE_ERSATZ_DASH);
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/* Hide the exclusive columns for now */
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(void) table_hide_column_from_display(t, 8);
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(void) table_hide_column_from_display(t, 10);
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for (;;) {
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uint64_t crtime, mtime, usage, usage_exclusive, limit, limit_exclusive;
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const char *class, *name, *type, *path;
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int read_only;
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r = sd_bus_message_read(reply, "(ssssbtttttt)", &class, &name, &type, &path, &read_only, &crtime, &mtime, &usage, &usage_exclusive, &limit, &limit_exclusive);
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if (r < 0)
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return bus_log_parse_error(r);
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if (r == 0)
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break;
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r = table_add_many(
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t,
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TABLE_STRING, class,
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TABLE_STRING, name,
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TABLE_STRING, type,
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TABLE_PATH, path);
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if (r < 0)
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return table_log_add_error(r);
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if (FLAGS_SET(arg_json_format_flags, JSON_FORMAT_OFF))
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r = table_add_many(
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t,
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TABLE_STRING, read_only ? "ro" : "rw",
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TABLE_SET_COLOR, read_only ? ANSI_HIGHLIGHT_RED : ANSI_HIGHLIGHT_GREEN);
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else
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r = table_add_many(
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t,
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TABLE_BOOLEAN, read_only);
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if (r < 0)
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return table_log_add_error(r);
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r = table_add_many(
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t,
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TABLE_TIMESTAMP, crtime,
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TABLE_TIMESTAMP, mtime,
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TABLE_SIZE, usage,
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TABLE_SIZE, usage_exclusive,
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TABLE_SIZE, limit,
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TABLE_SIZE, limit_exclusive);
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if (r < 0)
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return table_log_add_error(r);
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}
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r = sd_bus_message_exit_container(reply);
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if (r < 0)
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return bus_log_parse_error(r);
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if (!table_isempty(t)) {
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r = table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend);
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if (r < 0)
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return log_error_errno(r, "Failed to output table: %m");
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}
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if (arg_legend) {
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if (!table_isempty(t))
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printf("\n%zu images listed.\n", table_get_rows(t) - 1);
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else
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printf("No images.\n");
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}
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return 0;
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}
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static int help(int argc, char *argv[], void *userdata) {
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_cleanup_free_ char *link = NULL;
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int r;
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@ -906,6 +998,7 @@ static int help(int argc, char *argv[], void *userdata) {
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" export-raw NAME [FILE] Export a RAW container or VM image locally\n"
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" list-transfers Show list of transfers in progress\n"
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" cancel-transfer [ID...] Cancel a transfer\n"
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" list-images Show list of installed images\n"
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"\n%3$sOptions:%4$s\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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@ -1122,6 +1215,7 @@ static int importctl_main(int argc, char *argv[], sd_bus *bus) {
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{ "pull-raw", 2, 3, 0, pull_raw },
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{ "list-transfers", VERB_ANY, 1, VERB_DEFAULT, list_transfers },
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{ "cancel-transfer", 2, VERB_ANY, 0, cancel_transfer },
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{ "list-images", VERB_ANY, 1, 0, list_images },
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{}
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};
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@ -1296,6 +1296,86 @@ static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_er
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return sd_bus_reply_method_return(msg, NULL);
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}
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static int method_list_images(sd_bus_message *msg, void *userdata, sd_bus_error *error) {
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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ImageClass class = _IMAGE_CLASS_INVALID;
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int r;
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assert(msg);
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const char *sclass;
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uint64_t flags;
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r = sd_bus_message_read(msg, "st", &sclass, &flags);
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if (r < 0)
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return r;
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if (!isempty(sclass)) {
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class = image_class_from_string(sclass);
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if (class < 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
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"Image class '%s' not known", sclass);
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}
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if (flags != 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
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"Flags 0x%" PRIx64 " invalid", flags);
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r = sd_bus_message_new_method_return(msg, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_open_container(reply, 'a', "(ssssbtttttt)");
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if (r < 0)
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return r;
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for (ImageClass c = class < 0 ? 0 : class;
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class < 0 ? (c < _IMAGE_CLASS_MAX) : (c == class);
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c++) {
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_cleanup_(hashmap_freep) Hashmap *h = NULL;
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h = hashmap_new(&image_hash_ops);
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if (!h)
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return -ENOMEM;
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r = image_discover(c, /* root= */ NULL, h);
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if (r < 0) {
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if (class >= 0)
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return r;
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log_warning_errno(r, "Failed to discover images of type %s: %m", image_class_to_string(c));
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continue;
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}
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Image *i;
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HASHMAP_FOREACH(i, h) {
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r = sd_bus_message_append(
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reply,
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"(ssssbtttttt)",
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image_class_to_string(i->class),
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i->name,
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image_type_to_string(i->type),
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i->path,
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i->read_only,
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i->crtime,
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i->mtime,
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i->usage,
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i->usage_exclusive,
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i->limit,
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i->limit_exclusive);
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if (r < 0)
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return r;
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}
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}
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r = sd_bus_message_close_container(reply);
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if (r < 0)
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return r;
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return sd_bus_send(NULL, reply, NULL);
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}
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static int property_get_progress(
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sd_bus *bus,
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const char *path,
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@ -1592,6 +1672,14 @@ static const sd_bus_vtable manager_vtable[] = {
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NULL,,
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method_cancel_transfer,
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SD_BUS_VTABLE_UNPRIVILEGED),
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SD_BUS_METHOD_WITH_NAMES("ListImages",
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"st",
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SD_BUS_PARAM(class)
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SD_BUS_PARAM(flags),
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"a(ssssbtttttt)",
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SD_BUS_PARAM(images),
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method_list_images,
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SD_BUS_VTABLE_UNPRIVILEGED),
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SD_BUS_SIGNAL_WITH_NAMES("TransferNew",
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"uo",
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@ -110,6 +110,10 @@
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send_interface="org.freedesktop.import1.Transfer"
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send_member="Cancel"/>
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<allow send_destination="org.freedesktop.import1"
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send_interface="org.freedesktop.import1.Transfer"
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send_member="ListImages"/>
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<allow receive_sender="org.freedesktop.import1"/>
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</policy>
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