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Add placeholder functions for "repmgr $command --help"

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There are now too many options to sensibly fit into general --help
output; we'll add separate output for each repmgr command, e.g.
"repmgr node --help".
This commit is contained in:
Ian Barwick
2017-08-16 13:24:14 +09:00
parent 00f983dc15
commit 4efc8fb9ce
12 changed files with 131 additions and 33 deletions
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105
repmgr-client.c
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@@ -84,12 +84,14 @@ main(int argc, char **argv)
int optindex;
int c;
char *repmgr_node_type = NULL;
char *repmgr_command = NULL;
char *repmgr_action = NULL;
bool valid_repmgr_node_type_found = true;
bool valid_repmgr_command_found = true;
int action = NO_ACTION;
char *dummy_action = "";
bool help_option = false;
set_progname(argv[0]);
/*
@@ -173,8 +175,10 @@ main(int argc, char **argv)
* these are the only ones which can be executed as root user
*/
case OPT_HELP: /* --help */
do_help();
exit(SUCCESS);
help_option = true;
break;
//do_help();
//exit(SUCCESS);
case '?':
/* Actual help option given */
if (strcmp(argv[optind - 1], "-?") == 0)
@@ -646,7 +650,7 @@ main(int argc, char **argv)
* We check this here to give the root user a chance to execute --help/--version
* options.
*/
if (geteuid() == 0)
if (geteuid() == 0 && help_option == false)
{
fprintf(stderr,
_("%s: cannot be run as root\n"
@@ -679,7 +683,7 @@ main(int argc, char **argv)
*/
if (optind < argc)
{
repmgr_node_type = argv[optind++];
repmgr_command = argv[optind++];
}
if (optind < argc)
@@ -691,11 +695,17 @@ main(int argc, char **argv)
repmgr_action = dummy_action;
}
if (repmgr_node_type != NULL)
if (repmgr_command != NULL)
{
#ifndef BDR_ONLY
if (strcasecmp(repmgr_node_type, "PRIMARY") == 0 || strcasecmp(repmgr_node_type, "MASTER") == 0 )
if (strcasecmp(repmgr_command, "PRIMARY") == 0 || strcasecmp(repmgr_command, "MASTER") == 0 )
{
if (help_option == true)
{
do_primary_help();
exit(SUCCESS);
}
if (strcasecmp(repmgr_action, "REGISTER") == 0)
action = PRIMARY_REGISTER;
else if (strcasecmp(repmgr_action, "UNREGISTER") == 0)
@@ -706,8 +716,14 @@ main(int argc, char **argv)
action = NODE_STATUS;
}
else if (strcasecmp(repmgr_node_type, "STANDBY") == 0)
else if (strcasecmp(repmgr_command, "STANDBY") == 0)
{
if (help_option == true)
{
do_standby_help();
exit(SUCCESS);
}
if (strcasecmp(repmgr_action, "CLONE") == 0)
action = STANDBY_CLONE;
else if (strcasecmp(repmgr_action, "REGISTER") == 0)
@@ -725,11 +741,17 @@ main(int argc, char **argv)
else if (strcasecmp(repmgr_action, "STATUS") == 0)
action = NODE_STATUS;
}
else if (strcasecmp(repmgr_node_type, "BDR") == 0)
else if (strcasecmp(repmgr_command, "BDR") == 0)
#else
if (strcasecmp(repmgr_node_type, "BDR") == 0)
if (strcasecmp(repmgr_command, "BDR") == 0)
#endif
{
if (help_option == true)
{
do_bdr_help();
exit(SUCCESS);
}
if (strcasecmp(repmgr_action, "REGISTER") == 0)
action = BDR_REGISTER;
else if (strcasecmp(repmgr_action, "UNREGISTER") == 0)
@@ -740,8 +762,14 @@ main(int argc, char **argv)
action = NODE_STATUS;
}
else if (strcasecmp(repmgr_node_type, "NODE") == 0)
else if (strcasecmp(repmgr_command, "NODE") == 0)
{
if (help_option == true)
{
do_node_help();
exit(SUCCESS);
}
if (strcasecmp(repmgr_action, "CHECK") == 0)
action = NODE_CHECK;
else if (strcasecmp(repmgr_action, "STATUS") == 0)
@@ -752,8 +780,13 @@ main(int argc, char **argv)
action = NODE_SERVICE;
}
else if (strcasecmp(repmgr_node_type, "CLUSTER") == 0)
else if (strcasecmp(repmgr_command, "CLUSTER") == 0)
{
if (help_option == true)
{
do_cluster_help();
exit(SUCCESS);
}
if (strcasecmp(repmgr_action, "SHOW") == 0)
action = CLUSTER_SHOW;
@@ -769,37 +802,43 @@ main(int argc, char **argv)
}
else
{
valid_repmgr_node_type_found = false;
valid_repmgr_command_found = false;
}
}
if (help_option == true)
{
do_help();
exit(SUCCESS);
}
if (action == NO_ACTION)
{
PQExpBufferData command_error;
initPQExpBuffer(&command_error);
if (repmgr_node_type == NULL)
if (repmgr_command == NULL)
{
appendPQExpBuffer(&command_error,
_("no repmgr command provided"));
}
else if (valid_repmgr_node_type_found == false && repmgr_action[0] == '\0')
else if (valid_repmgr_command_found == false && repmgr_action[0] == '\0')
{
appendPQExpBuffer(&command_error,
_("unknown repmgr node type '%s'"),
repmgr_node_type);
_("unknown repmgr command '%s'"),
repmgr_command);
}
else if (repmgr_action[0] == '\0')
{
appendPQExpBuffer(&command_error,
_("no action provided for node type '%s'"),
repmgr_node_type);
_("no action provided for command '%s'"),
repmgr_command);
}
else
{
appendPQExpBuffer(&command_error,
_("unknown repmgr action '%s %s'"),
repmgr_node_type,
repmgr_command,
repmgr_action);
}
@@ -1565,8 +1604,8 @@ print_error_list(ItemList *error_list, int log_level)
}
static void
do_help(void)
void
print_help_header(void)
{
printf(_("%s: replication management tool for PostgreSQL\n"), progname());
puts("");
@@ -1579,15 +1618,25 @@ do_help(void)
printf(_(" **************************************************\n"));
puts("");
}
}
static void
do_help(void)
{
print_help_header();
printf(_("Usage:\n"));
#ifndef BDR_ONLY
printf(_(" %s [OPTIONS] primary {register|unregister}\n"), progname());
printf(_(" %s [OPTIONS] standby {register|unregister|clone|promote|follow}\n"), progname());
printf(_(" %s [OPTIONS] primary {register|unregister}\n"), progname());
printf(_(" %s [OPTIONS] standby {register|unregister|clone|promote|follow}\n"), progname());
#endif
printf(_(" %s [OPTIONS] bdr {register|unregister}\n"), progname());
printf(_(" %s [OPTIONS] node status\n"), progname());
printf(_(" %s [OPTIONS] cluster {show|event|matrix|crosscheck}\n"), progname());
printf(_(" %s [OPTIONS] bdr {register|unregister}\n"), progname());
printf(_(" %s [OPTIONS] node status\n"), progname());
printf(_(" %s [OPTIONS] cluster {show|event|matrix|crosscheck}\n"), progname());
puts("");
printf(_(" Execute \"%s {primary|standby|bdr|node|cluster} --help\" to see command-specific options\n"), progname());
puts("");