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khosb/includes/kohana/modules/minion/classes/Kohana/Minion/CLI.php
2012-12-21 12:59:09 +11:00

316 lines
7.2 KiB
PHP

<?php defined('SYSPATH') or die('No direct script access.');
class Kohana_Minion_CLI {
public static $wait_msg = 'Press any key to continue...';
protected static $foreground_colors = array(
'black' => '0;30',
'dark_gray' => '1;30',
'blue' => '0;34',
'light_blue' => '1;34',
'green' => '0;32',
'light_green' => '1;32',
'cyan' => '0;36',
'light_cyan' => '1;36',
'red' => '0;31',
'light_red' => '1;31',
'purple' => '0;35',
'light_purple' => '1;35',
'brown' => '0;33',
'yellow' => '1;33',
'light_gray' => '0;37',
'white' => '1;37',
);
protected static $background_colors = array(
'black' => '40',
'red' => '41',
'green' => '42',
'yellow' => '43',
'blue' => '44',
'magenta' => '45',
'cyan' => '46',
'light_gray' => '47',
);
/**
* Returns one or more command-line options. Options are specified using
* standard CLI syntax:
*
* php index.php --username=john.smith --password=secret --var="some value with spaces"
*
* // Get the values of "username" and "password"
* $auth = Minion_CLI::options('username', 'password');
*
* @param string $options,... option name
* @return array
*/
public static function options($options = NULL)
{
// Get all of the requested options
$options = func_get_args();
// Found option values
$values = array();
// Skip the first option, it is always the file executed
for ($i = 1; $i < $_SERVER['argc']; $i++)
{
if ( ! isset($_SERVER['argv'][$i]))
{
// No more args left
break;
}
// Get the option
$opt = $_SERVER['argv'][$i];
if (substr($opt, 0, 2) !== '--')
{
// This is a positional argument
$values[] = $opt;
continue;
}
// Remove the "--" prefix
$opt = substr($opt, 2);
if (strpos($opt, '='))
{
// Separate the name and value
list ($opt, $value) = explode('=', $opt, 2);
}
else
{
$value = NULL;
}
$values[$opt] = $value;
}
if ($options)
{
foreach ($values as $opt => $value)
{
if ( ! in_array($opt, $options))
{
// Set the given value
unset($values[$opt]);
}
}
}
return count($options) == 1 ? array_pop($values) : $values;
}
/**
* Reads input from the user. This can have either 1 or 2 arguments.
*
* Usage:
*
* // Waits for any key press
* Minion_CLI::read();
*
* // Takes any input
* $color = Minion_CLI::read('What is your favorite color?');
*
* // Will only accept the options in the array
* $ready = Minion_CLI::read('Are you ready?', array('y','n'));
*
* @param string $text text to show user before waiting for input
* @param array $options array of options the user is shown
* @return string the user input
*/
public static function read($text = '', array $options = NULL)
{
// If a question has been asked with the read
$options_output = '';
if ( ! empty($options))
{
$options_output = ' [ '.implode(', ', $options).' ]';
}
fwrite(STDOUT, $text.$options_output.': ');
// Read the input from keyboard.
$input = trim(fgets(STDIN));
// If options are provided and the choice is not in the array, tell them to try again
if ( ! empty($options) && ! in_array($input, $options))
{
Minion_CLI::write('This is not a valid option. Please try again.');
$input = Minion_CLI::read($text, $options);
}
// Read the input
return $input;
}
/**
* Experimental feature.
*
* Reads hidden input from the user
*
* Usage:
*
* $password = Minion_CLI::password('Enter your password');
*
* @author Mathew Davies.
* @return string
*/
public static function password($text = '')
{
$text .= ': ';
if (Kohana::$is_windows)
{
$vbscript = sys_get_temp_dir().'Minion_CLI_Password.vbs';
// Create temporary file
file_put_contents($vbscript, 'wscript.echo(InputBox("'.addslashes($text).'"))');
$password = shell_exec('cscript //nologo '.escapeshellarg($command));
// Remove temporary file.
unlink($vbscript);
}
else
{
$password = shell_exec('/usr/bin/env bash -c \'read -s -p "'.escapeshellcmd($text).'" var && echo $var\'');
}
Minion_CLI::write();
return trim($password);
}
/**
* Outputs a string to the cli. If you send an array it will implode them
* with a line break.
*
* @param string|array $text the text to output, or array of lines
*/
public static function write($text = '')
{
if (is_array($text))
{
foreach ($text as $line)
{
Minion_CLI::write($line);
}
}
else
{
fwrite(STDOUT, $text.PHP_EOL);
}
}
/**
* Outputs a replacable line to the cli. You can continue replacing the
* line until `TRUE` is passed as the second parameter in order to indicate
* you are done modifying the line.
*
* // Sample progress indicator
* Minion_CLI::write_replace('0%');
* Minion_CLI::write_replace('25%');
* Minion_CLI::write_replace('50%');
* Minion_CLI::write_replace('75%');
* // Done writing this line
* Minion_CLI::write_replace('100%', TRUE);
*
* @param string $text the text to output
* @param boolean $end_line whether the line is done being replaced
*/
public static function write_replace($text = '', $end_line = FALSE)
{
// Append a newline if $end_line is TRUE
$text = $end_line ? $text.PHP_EOL : $text;
fwrite(STDOUT, "\r\033[K".$text);
}
/**
* Waits a certain number of seconds, optionally showing a wait message and
* waiting for a key press.
*
* @author Fuel Development Team
* @license MIT License
* @copyright 2010 - 2011 Fuel Development Team
* @link http://fuelphp.com
* @param int $seconds number of seconds
* @param bool $countdown show a countdown or not
*/
public static function wait($seconds = 0, $countdown = false)
{
if ($countdown === true)
{
$time = $seconds;
while ($time > 0)
{
fwrite(STDOUT, $time.'... ');
sleep(1);
$time--;
}
Minion_CLI::write();
}
else
{
if ($seconds > 0)
{
sleep($seconds);
}
else
{
Minion_CLI::write(Minion_CLI::$wait_msg);
Minion_CLI::read();
}
}
}
/**
* Returns the given text with the correct color codes for a foreground and
* optionally a background color.
*
* @author Fuel Development Team
* @license MIT License
* @copyright 2010 - 2011 Fuel Development Team
* @link http://fuelphp.com
* @param string $text the text to color
* @param atring $foreground the foreground color
* @param string $background the background color
* @return string the color coded string
*/
public static function color($text, $foreground, $background = null)
{
if (Kohana::$is_windows)
{
return $text;
}
if (!array_key_exists($foreground, Minion_CLI::$foreground_colors))
{
throw new Kohana_Exception('Invalid CLI foreground color: '.$foreground);
}
if ($background !== null and !array_key_exists($background, Minion_CLI::$background_colors))
{
throw new Kohana_Exception('Invalid CLI background color: '.$background);
}
$string = "\033[".Minion_CLI::$foreground_colors[$foreground]."m";
if ($background !== null)
{
$string .= "\033[".Minion_CLI::$background_colors[$background]."m";
}
$string .= $text."\033[0m";
return $string;
}
}