multicall: migrate execution options to common code

cmd/multicall-exec-options.c

@@ -0,0 +1,77 @@
+/*
+ * cmd/multicall-exec-options.c
+ * Purpose: multi-call binary frontend -- option handling
+ *
+ * Copyright (c) 2020 Ariadne Conill <ariadne@dereferenced.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * This software is provided 'as is' and without any warranty, express or
+ * implied.  In no event shall the authors be liable for any damages arising
+ * from the use of this software.
+ */
+
+#define _GNU_SOURCE
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include "cmd/multicall.h"
+
+struct lif_execute_opts exec_opts = {
+	.interfaces_file = INTERFACES_FILE,
+	.executor_path = EXECUTOR_PATH,
+	.state_file = STATE_FILE
+};
+
+static void handle_exec(int short_opt, const struct if_option *opt, const char *opt_arg, const struct if_applet *applet)
+{
+	(void) opt;
+	(void) applet;
+
+	switch (short_opt)
+	{
+		case 'i':
+			exec_opts.interfaces_file = opt_arg;
+			break;
+		case 'S':
+			exec_opts.state_file = opt_arg;
+			break;
+		case 'n':
+			exec_opts.mock = true;
+			exec_opts.verbose = true;
+			break;
+		case 'v':
+			exec_opts.verbose = true;
+			break;
+		case 'E':
+			exec_opts.executor_path = opt_arg;
+			break;
+		case 'f':
+			break;
+		case 'L':
+			exec_opts.no_lock = true;
+			break;
+		default:
+			break;
+	}
+}
+
+static struct if_option exec_options[] = {
+	{'f', "force", NULL, "force (de)configuration", true, handle_exec},
+	{'i', "interfaces", "interfaces FILE", "use FILE for interface definitions", true, handle_exec},
+	{'n', "no-act", NULL, "do not actually run any commands", false, handle_exec},
+	{'v', "verbose", NULL, "show what commands are being run", false, handle_exec},
+	{'E', "executor-path", "executor-path PATH", "use PATH for executor directory", true, handle_exec},
+	{'L', "no-lock", NULL, "do not use a lockfile to serialize state changes", false, handle_exec},
+	{'S', "state-file", "state-file FILE", "use FILE for state", true, handle_exec},
+};
+
+struct if_option_group exec_option_group = {
+	.desc = "Execution",
+	.group_size = ARRAY_SIZE(exec_options),
+	.group = exec_options
+};