/**
* Initialize PLUG CLI environment
* @todo research CGI environment, differences to cli
* @return Void
*/
static function init()
{
switch (PHP_SAPI) {
// Ideally we want to be runnning as CLI
case 'cli':
break;
// Special conditions to ensure CGI runs as CLI
// Special conditions to ensure CGI runs as CLI
case 'cgi':
// Ensure resource constants are defined
if (!defined('STDERR')) {
define('STDERR', fopen('php://stderr', 'w'));
}
if (!defined('STDOUT')) {
define('STDOUT', fopen('php://stdout', 'w'));
}
break;
default:
echo "Command line only\n";
exit(1);
}
// Default error logger function
PLUG::set_error_logger(array(__CLASS__, 'format_logline'));
// parse command line arguments from argv global
global $argv, $argc;
// first cli arg is always current script. second arg will be script arg passed to shell wrapper
for ($i = 1; $i < $argc; $i++) {
$arg = $argv[$i];
// Each command line argument may take following forms:
// 1. "Any single argument", no point parsing this unless it follows #2 below
// 2. "-aBCD", one or more switches, parse into 'a'=>true, 'B'=>true, and so on
// 3. "-a value", flag used with following value, parsed to 'a'=>'value'
// 4. "--longoption", GNU style long option, parse into 'longoption'=>true
// 5. "--longoption=value", as above, but parse into 'longoption'=>'value'
// 6."any variable name = any value"
$pair = explode('=', $arg, 2);
if (isset($pair[1])) {
$name = trim($pair[0]);
if (strpos($name, '--') === 0) {
// #5. trimming "--" from option, tough luck if you only used one "-"
$name = trim($name, '-');
}
// else is #6, any pair
$name and self::$args[$name] = trim($pair[1]);
} else {
if (strpos($arg, '--') === 0) {
// #4. long option, no value
$name = trim($arg, "-\n\r\t ");
$name and self::$args[$name] = true;
} else {
if ($arg && $arg[0] === '-') {
$flags = preg_split('//', trim($arg, "-\n\r\t "), -1, PREG_SPLIT_NO_EMPTY);
foreach ($flags as $flag) {
self::$args[$flag] = true;
}
// leave $flag set incase a value follows.
continue;
} else {
if (isset($flag)) {
self::$args[$flag] = trim($arg);
}
}
}
}
// dispose of last flag
unset($flag);
// next arg
}
}