/**
* Create a compact version of basic usage instructions
*
* @param boolean $header Whether or not to include a help header
* @return string
*/
public function createUsage($header = false)
{
$ret = '';
$bools = [];
$others = [];
foreach ($this->fields as $field) {
$name = $field->getName();
$usage = $this->createFieldUsage($field);
if ($field instanceof BooleanField) {
$bools[$name] = $usage;
} else {
$others[$name] = $usage;
}
}
$opts = array_merge(array_values($bools), array_values($others));
$cmd = Cli::getScriptName();
$maxWidth = min(Cli::getWidth(), 78);
if ($header === true) {
$ret .= $this->createHeader('usage');
$tmp = " {$cmd}";
} else {
$tmp = "usage: {$cmd}";
}
$indent = strlen($tmp);
foreach ($opts as $opt) {
if (strlen($tmp) + strlen($opt) >= $maxWidth) {
$ret .= "{$tmp}\n";
$tmp = str_pad('', $indent, ' ') . " {$opt}";
} else {
$tmp .= " {$opt}";
}
}
$ret .= $tmp;
return $ret;
}
