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<?php
/**
* Hoa
*
*
* @license
*
* New BSD License
*
* Copyright © 2007-2017, Hoa community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Hoa nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
namespace Psy\Readline\Hoa;
/**
* Class \Hoa\Console.
*
* A set of utils and helpers about the console.
*/
class Console
{
/**
* Pipe mode: FIFO.
*/
const IS_FIFO = 0;
/**
* Pipe mode: character.
*/
const IS_CHARACTER = 1;
/**
* Pipe mode: directory.
*/
const IS_DIRECTORY = 2;
/**
* Pipe mode: block.
*/
const IS_BLOCK = 3;
/**
* Pipe mode: regular.
*/
const IS_REGULAR = 4;
/**
* Pipe mode: link.
*/
const IS_LINK = 5;
/**
* Pipe mode: socket.
*/
const IS_SOCKET = 6;
/**
* Pipe mode: whiteout.
*/
const IS_WHITEOUT = 7;
/**
* Advanced interaction is on.
*/
private static $_advanced = null;
/**
* Previous STTY configuration.
*/
private static $_old = null;
/**
* Mode.
*/
protected static $_mode = [];
/**
* Input.
*/
protected static $_input = null;
/**
* Output.
*/
protected static $_output = null;
/**
* Tput.
*/
protected static $_tput = null;
/**
* Prepare the environment for advanced interactions.
*/
public static function advancedInteraction(bool $force = false): bool
{
if (null !== self::$_advanced) {
return self::$_advanced;
}
if (\defined('PHP_WINDOWS_VERSION_PLATFORM')) {
return self::$_advanced = false;
}
if (false === $force &&
true === \defined('STDIN') &&
false === self::isDirect(\STDIN)) {
return self::$_advanced = false;
}
self::$_old = ConsoleProcessus::execute('stty -g < /dev/tty', false);
ConsoleProcessus::execute('stty -echo -icanon min 1 time 0 < /dev/tty', false);
return self::$_advanced = true;
}
/**
* Restore previous interaction options.
*/
public static function restoreInteraction()
{
if (null === self::$_old) {
return;
}
ConsoleProcessus::execute('stty '.self::$_old.' < /dev/tty', false);
return;
}
/**
* Get mode of a certain pipe.
* Inspired by sys/stat.h.
*/
public static function getMode($pipe = \STDIN): int
{
$_pipe = (int) $pipe;
if (isset(self::$_mode[$_pipe])) {
return self::$_mode[$_pipe];
}
$stat = \fstat($pipe);
switch ($stat['mode'] & 0170000) {
// named pipe (fifo).
case 0010000:
$mode = self::IS_FIFO;
break;
// character special.
case 0020000:
$mode = self::IS_CHARACTER;
break;
// directory.
case 0040000:
$mode = self::IS_DIRECTORY;
break;
// block special.
case 0060000:
$mode = self::IS_BLOCK;
break;
// regular.
case 0100000:
$mode = self::IS_REGULAR;
break;
// symbolic link.
case 0120000:
$mode = self::IS_LINK;
break;
// socket.
case 0140000:
$mode = self::IS_SOCKET;
break;
// whiteout.
case 0160000:
$mode = self::IS_WHITEOUT;
break;
default:
$mode = -1;
}
return self::$_mode[$_pipe] = $mode;
}
/**
* Check whether a certain pipe is a character device (keyboard, screen
* etc.).
* For example:
* $ php Mode.php
* In this case, self::isDirect(STDOUT) will return true.
*/
public static function isDirect($pipe): bool
{
return self::IS_CHARACTER === self::getMode($pipe);
}
/**
* Check whether a certain pipe is a pipe.
* For example:
* $ php Mode.php | foobar
* In this case, self::isPipe(STDOUT) will return true.
*/
public static function isPipe($pipe): bool
{
return self::IS_FIFO === self::getMode($pipe);
}
/**
* Check whether a certain pipe is a redirection.
* For example:
* $ php Mode.php < foobar
* In this case, self::isRedirection(STDIN) will return true.
*/
public static function isRedirection($pipe): bool
{
$mode = self::getMode($pipe);
return
self::IS_REGULAR === $mode ||
self::IS_DIRECTORY === $mode ||
self::IS_LINK === $mode ||
self::IS_SOCKET === $mode ||
self::IS_BLOCK === $mode;
}
/**
* Set input layer.
*/
public static function setInput(ConsoleInput $input)
{
$old = static::$_input;
static::$_input = $input;
return $old;
}
/**
* Get input layer.
*/
public static function getInput(): ConsoleInput
{
if (null === static::$_input) {
static::$_input = new ConsoleInput();
}
return static::$_input;
}
/**
* Set output layer.
*/
public static function setOutput(ConsoleOutput $output)
{
$old = static::$_output;
static::$_output = $output;
return $old;
}
/**
* Get output layer.
*/
public static function getOutput(): ConsoleOutput
{
if (null === static::$_output) {
static::$_output = new ConsoleOutput();
}
return static::$_output;
}
/**
* Set tput.
*/
public static function setTput(ConsoleTput $tput)
{
$old = static::$_tput;
static::$_tput = $tput;
return $old;
}
/**
* Get the current tput instance of the current process.
*/
public static function getTput(): ConsoleTput
{
if (null === static::$_tput) {
static::$_tput = new ConsoleTput();
}
return static::$_tput;
}
/**
* Check whether we are running behind TMUX(1).
*/
public static function isTmuxRunning(): bool
{
return isset($_SERVER['TMUX']);
}
}
/*
* Restore interaction.
*/
\register_shutdown_function([Console::class, 'restoreInteraction']);
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