report-basic: convert to VERB_COMMAND and add --introspect-cli

The custom help() is replaced by a COMMAND() description, and
--introspect-cli is added. The abstract gets a trailing period. There is
no man page for this helper, so none is referenced.

src/report/report-basic-server.c

@@ -1,16 +1,20 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include "sd-json.h"
 #include "sd-varlink.h"
 
-#include "ansi-color.h"
 #include "build.h"
-#include "format-table.h"
 #include "log.h"
 #include "main-func.h"
-#include "options.h"
 #include "report-basic.h"
 #include "varlink-io.systemd.Metrics.h"
 #include "varlink-util.h"
+#include "verbs.h"
+
+COMMAND(
+        "systemd-report-basic\0",
+        "Generate a report describing the current system.",
+);
 
 static int vl_server(void) {
         _cleanup_(sd_varlink_server_unrefp) sd_varlink_server *vs = NULL;
@@ -38,26 +42,6 @@ static int vl_server(void) {
         return 0;
 }
 
-static int help(void) {
-        _cleanup_(table_unrefp) Table *options = NULL;
-        int r;
-
-        r = option_parser_get_help_table(&options);
-        if (r < 0)
-                return r;
-
-        printf("%s [OPTIONS...]\n"
-               "\n%sGenerate a report describing the current system%s\n"
-               "\n%sOptions:%s\n",
-               program_invocation_short_name,
-               ansi_highlight(),
-               ansi_normal(),
-               ansi_underline(),
-               ansi_normal());
-
-        return table_print_or_warn(options);
-}
-
 static int parse_argv(int argc, char *argv[]) {
         int r;
 
@@ -69,10 +53,13 @@ static int parse_argv(int argc, char *argv[]) {
         FOREACH_OPTION_OR_RETURN(c, &opts)
                 switch (c) {
                 OPTION_COMMON_HELP:
-                        return help();
+                        return command_print_help("systemd-report-basic");
 
                 OPTION_COMMON_VERSION:
                         return version();
+
+                OPTION_COMMON_INTROSPECT_CLI:
+                        return introspect_cli(SD_JSON_FORMAT_OFF);
                 }
 
         if (option_parser_get_n_args(&opts) > 0)

test/units/TEST-74-AUX-UTILS.introspect-cli.sh

@@ -88,6 +88,7 @@ INTROSPECTABLE=(
     systemd-random-seed
     systemd-repart
     systemd-report
+    systemd-report-basic
     systemd-run
     systemd-sbsign
     systemd-sleep