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<?php
/** @file clicommand.inc
* @ingroup Phar
* @brief class CLICommand
* @author Marcus Boerger
* @date 2007 - 2008
*
* Phar Command
*/
/** @ingroup Phar
* @brief Abstract base console command implementation
* @author Marcus Boerger
* @version 1.0
*/
abstract class CLICommand
{
protected $argc;
protected $argv;
protected $cmds = array();
protected $args = array();
protected $typs = array();
function __construct($argc, array $argv)
{
$this->argc = $argc;
$this->argv = $argv;
$this->cmds = self::getCommands($this);
$this->typs = self::getArgTyps($this);
if ($argc < 2) {
self::error("No command given, check ${argv[0]} help\n");
} elseif (!isset($this->cmds[$argv[1]]['run'])) {
self::error("Unknown command '${argv[1]}', check ${argv[0]} help\n");
} else {
$command = $argv[1];
}
if (isset($this->cmds[$command]['arg'])) {
$this->args = call_user_func(array($this, $this->cmds[$command]['arg']));
$i = 1;
$missing = false;
while (++$i < $argc) {
if ($argv[$i][0] == '-') {
if (strlen($argv[$i]) == 2 && isset($this->args[$argv[$i][1]])) {
$arg = $argv[$i][1];
if (++$i >= $argc) {
self::error("Missing argument to parameter '$arg' of command '$command', check ${argv[0]} help\n");
} else {
$this->args[$arg]['val'] = $this->checkArgTyp($arg, $i, $argc, $argv);
}
} else {
self::error("Unknown parameter '${argv[$i]}' to command $command, check ${argv[0]} help\n");
}
} else {
break;
}
}
if (isset($this->args[''])) {
if ($i >= $argc) {
if (isset($this->args['']['require']) && $this->args['']['require']) {
self::error("Missing default trailing arguments to command $command, check ${argv[0]} help\n");
}
} else {
$this->args['']['val'] = array();
while($i < $argc) {
$this->args['']['val'][] = $argv[$i++];
}
}
} else if ($i < $argc) {
self::error("Unexpected default arguments to command $command, check ${argv[0]} help\n");
}
foreach($this->args as $arg => $inf) {
if (strlen($arg) && !isset($inf['val']) && isset($inf['required']) && $inf['required']) {
$missing .= "Missing parameter '-$arg' to command $command, check ${argv[0]} help\n";
}
}
if (strlen($missing)) {
self::error($missing);
}
}
call_user_func(array($this, $this->cmds[$command]['run']), $this->args);
}
static function notice ($msg)
{
fprintf(STDERR, $msg);
}
static function error ($msg, $exit_code = 1)
{
self::notice($msg);
exit($exit_code);
}
function checkArgTyp($arg, $i, $argc, $argv)
{
$typ = $this->args[$arg]['typ'];
if (isset($this->typs[$typ]['typ'])) {
return call_user_func(array($this, $this->typs[$typ]['typ']), $argv[$i], $this->args[$arg], $arg);
} else {
return $argv[$i];
}
}
static function getSubFuncs(CLICommand $cmdclass, $prefix, array $subs)
{
$a = array();
$r = new ReflectionClass($cmdclass);
$l = strlen($prefix);
foreach($r->getMethods() as $m) {
if (substr($m->name, 0, $l) == $prefix) {
foreach($subs as $sub) {
$what = substr($m->name, $l+strlen($sub)+1);
$func = $prefix . $sub . '_' . $what;
$what = str_replace('_', '-', $what);
if ($r->hasMethod($func)) {
if (!isset($a[$what])) {
$a[$what] = array();
}
$a[$what][$sub] = /*$m->class . '::' .*/ $func;
}
}
}
}
return $a;
}
static function getCommands(CLICommand $cmdclass)
{
return self::getSubFuncs($cmdclass, 'cli_cmd_', array('arg','inf','run'));
}
static function getArgTyps(CLICommand $cmdclass)
{
return self::getSubFuncs($cmdclass, 'cli_arg_', array('typ'));
}
static function cli_arg_typ_bool($arg, $cfg, $key)
{
return (bool)$arg;
}
static function cli_arg_typ_int($arg, $cfg, $key)
{
if ((int)$arg != $arg) {
self::error("Argument to -$key must be an integer.\n");
}
return (int)$arg;
}
static function cli_arg_typ_regex($arg, $cfg, $key)
{
if (strlen($arg)) {
if (strlen($arg) > 1 && $arg[0] == $arg[strlen($arg)-1] && strpos('/,', $arg) !== false) {
return $arg;
} else {
return '/' . $arg . '/';
}
} else {
return NULL;
}
}
static function cli_arg_typ_select($arg, $cfg, $key)
{
if (!in_array($arg, array_keys($cfg['select']))) {
self::error("Parameter value '$arg' not one of '" . join("', '", array_keys($cfg['select'])) . "'.\n");
}
return $arg;
}
static function cli_arg_typ_dir($arg, $cfg, $key)
{
$f = realpath($arg);
if ($f===false || !file_exists($f) || !is_dir($f)) {
self::error("Requested path '$arg' does not exist.\n");
}
return $f;
}
static function cli_arg_typ_file($arg)
{
$f = new SplFileInfo($arg);
$f = $f->getRealPath();
if ($f===false || !file_exists($f)) {
echo "Requested file '$arg' does not exist.\n";
exit(1);
}
return $f;
}
static function cli_arg_typ_filenew($arg, $cfg, $key)
{
$d = dirname($arg);
$f = realpath($d);
if ($f === false) {
self::error("Path for file '$arg' does not exist.\n");
}
return $f . '/' . basename($arg);
}
static function cli_arg_typ_filecont($arg, $cfg, $key)
{
return file_get_contents(self::cli_arg_typ_file($arg, $cfg, $key));
}
function cli_get_SP2($l1, $arg_inf)
{
return str_repeat(' ', $l1 + 2 + 4 + 8);
}
function cli_get_SP3($l1, $l2, $arg_inf)
{
return str_repeat(' ', $l1 + 2 + 4 + 8 + 2 + $l2 + 2);
}
static function cli_cmd_inf_help()
{
return "This help or help for a selected command.";
}
private function cli_wordwrap($what, $l, $sp)
{
$p = max(79 - $l, 40); // minimum length for paragraph
$b = substr($what, 0, $l); // strip out initial $l
$r = substr($what, $l); // remainder
$r = str_replace("\n", "\n".$sp, $r); // in remainder replace \n's
return $b . wordwrap($r, $p, "\n".$sp);
}
private function cli_help_get_args($func, $l, $sp, $required)
{
$inf = "";
foreach(call_user_func($func, $l, $sp) as $arg => $conf) {
if ((isset($conf['required']) && $conf['required']) != $required) {
continue;
}
if (strlen($arg)) {
$arg = "-$arg ";
} else {
$arg = "... ";
}
$sp2 = $this->cli_get_SP2($l, $inf);
$l2 = strlen($sp2);
$inf .= $this->cli_wordwrap($sp . $arg . $conf['inf'], $l2, $sp2) . "\n";
if (isset($conf['select']) && count($conf['select'])) {
$ls = 0;
foreach($conf['select'] as $opt => $what) {
$ls = max($ls, strlen($opt));
}
$sp3 = $this->cli_get_SP3($l, $ls, $inf);
$l3 = strlen($sp3);
foreach($conf['select'] as $opt => $what) {
$inf .= $this->cli_wordwrap($sp2 . " " . sprintf("%-${ls}s ", $opt) . $what, $l3, $sp3) . "\n";
}
}
}
if (strlen($inf)) {
if ($required) {
return $sp . "Required arguments:\n\n" . $inf;
} else {
return $sp . "Optional arguments:\n\n". $inf;
}
}
}
function cli_cmd_arg_help()
{
return array('' => array('typ'=>'any','val'=>NULL,'inf'=>'Optional command to retrieve help for.'));
}
function cli_cmd_run_help()
{
$argv = $this->argv;
$which = $this->args['']['val'];
if (isset($which)) {
if (count($which) != 1) {
self::error("More than one command given.\n");
}
$which = $which[0];
if (!array_key_exists($which, $this->cmds)) {
if (strtolower($which) == 'commands') {
self::cli_cmd_run_help_list();
exit(0);
}
self::error("Unknown command, cannot retrieve help.\n");
}
$l = strlen($which);
$cmds = array($which => $this->cmds[$which]);
} else {
echo "\n$argv[0] <command> [options]\n\n";
$l = 0;
ksort($this->cmds);
foreach($this->cmds as $name => $funcs) {
$l = max($l, strlen($name));
}
$inf = "Commands:";
$lst = "";
$ind = strlen($inf) + 1;
foreach($this->cmds as $name => $funcs) {
$lst .= ' ' . $name;
}
echo $this->cli_wordwrap($inf.$lst, $ind, str_repeat(' ', $ind)) . "\n\n";
$cmds = $this->cmds;
}
$sp = str_repeat(' ', $l + 2);
foreach($cmds as $name => $funcs) {
$inf = $name . substr($sp, strlen($name));
if (isset($funcs['inf'])) {
$inf .= $this->cli_wordwrap(call_user_func(array($this, $funcs['inf'])), $l, $sp) . "\n";
if (isset($funcs['arg'])) {
$inf .= "\n";
$inf .= $this->cli_help_get_args(array($this, $funcs['arg']), $l, $sp, true);
$inf .= "\n";
$inf .= $this->cli_help_get_args(array($this, $funcs['arg']), $l, $sp, false);
}
}
echo "$inf\n\n";
}
exit(0);
}
static function cli_cmd_inf_help_list()
{
return "Lists available commands.";
}
function cli_cmd_run_help_list()
{
ksort($this->cmds);
echo join(' ', array_keys($this->cmds)) . "\n";
}
}
?>