diff options
Diffstat (limited to 'inc/lib/minify/MrClay')
| -rwxr-xr-x | inc/lib/minify/MrClay/Cli.php | 381 | ||||
| -rwxr-xr-x | inc/lib/minify/MrClay/Cli/Arg.php | 181 |
2 files changed, 562 insertions, 0 deletions
diff --git a/inc/lib/minify/MrClay/Cli.php b/inc/lib/minify/MrClay/Cli.php new file mode 100755 index 00000000..ac201582 --- /dev/null +++ b/inc/lib/minify/MrClay/Cli.php @@ -0,0 +1,381 @@ +<?php + +namespace MrClay; + +/** + * Forms a front controller for a console app, handling and validating arguments (options) + * + * Instantiate, add arguments, then call validate(). Afterwards, the user's valid arguments + * and their values will be available in $cli->values. + * + * You may also specify that some arguments be used to provide input/output. By communicating + * solely through the file pointers provided by openInput()/openOutput(), you can make your + * app more flexible to end users. + * + * @author Steve Clay <steve@mrclay.org> + * @license http://www.opensource.org/licenses/mit-license.php MIT License + */ +class Cli { + + /** + * @var array validation errors + */ + public $errors = array(); + + /** + * @var array option values available after validation. + * + * E.g. array( + * 'a' => false // option was missing + * ,'b' => true // option was present + * ,'c' => "Hello" // option had value + * ,'f' => "/home/user/file" // file path from root + * ,'f.raw' => "~/file" // file path as given to option + * ) + */ + public $values = array(); + + /** + * @var array + */ + public $moreArgs = array(); + + /** + * @var array + */ + public $debug = array(); + + /** + * @var bool The user wants help info + */ + public $isHelpRequest = false; + + /** + * @var array of Cli\Arg + */ + protected $_args = array(); + + /** + * @var resource + */ + protected $_stdin = null; + + /** + * @var resource + */ + protected $_stdout = null; + + /** + * @param bool $exitIfNoStdin (default true) Exit() if STDIN is not defined + */ + public function __construct($exitIfNoStdin = true) + { + if ($exitIfNoStdin && ! defined('STDIN')) { + exit('This script is for command-line use only.'); + } + if (isset($GLOBALS['argv'][1]) + && ($GLOBALS['argv'][1] === '-?' || $GLOBALS['argv'][1] === '--help')) { + $this->isHelpRequest = true; + } + } + + /** + * @param Cli\Arg|string $letter + * @return Cli\Arg + */ + public function addOptionalArg($letter) + { + return $this->addArgument($letter, false); + } + + /** + * @param Cli\Arg|string $letter + * @return Cli\Arg + */ + public function addRequiredArg($letter) + { + return $this->addArgument($letter, true); + } + + /** + * @param string $letter + * @param bool $required + * @param Cli\Arg|null $arg + * @return Cli\Arg + * @throws \InvalidArgumentException + */ + public function addArgument($letter, $required, Cli\Arg $arg = null) + { + if (! preg_match('/^[a-zA-Z]$/', $letter)) { + throw new \InvalidArgumentException('$letter must be in [a-zA-z]'); + } + if (! $arg) { + $arg = new Cli\Arg($required); + } + $this->_args[$letter] = $arg; + return $arg; + } + + /** + * @param string $letter + * @return Cli\Arg|null + */ + public function getArgument($letter) + { + return isset($this->_args[$letter]) ? $this->_args[$letter] : null; + } + + /* + * Read and validate options + * + * @return bool true if all options are valid + */ + public function validate() + { + $options = ''; + $this->errors = array(); + $this->values = array(); + $this->_stdin = null; + + if ($this->isHelpRequest) { + return false; + } + + $lettersUsed = ''; + foreach ($this->_args as $letter => $arg) { + /* @var Cli\Arg $arg */ + $options .= $letter; + $lettersUsed .= $letter; + + if ($arg->mayHaveValue || $arg->mustHaveValue) { + $options .= ($arg->mustHaveValue ? ':' : '::'); + } + } + + $this->debug['argv'] = $GLOBALS['argv']; + $argvCopy = array_slice($GLOBALS['argv'], 1); + $o = getopt($options); + $this->debug['getopt_options'] = $options; + $this->debug['getopt_return'] = $o; + + foreach ($this->_args as $letter => $arg) { + /* @var Cli\Arg $arg */ + $this->values[$letter] = false; + if (isset($o[$letter])) { + if (is_bool($o[$letter])) { + + // remove from argv copy + $k = array_search("-$letter", $argvCopy); + if ($k !== false) { + array_splice($argvCopy, $k, 1); + } + + if ($arg->mustHaveValue) { + $this->addError($letter, "Missing value"); + } else { + $this->values[$letter] = true; + } + } else { + // string + $this->values[$letter] = $o[$letter]; + $v =& $this->values[$letter]; + + // remove from argv copy + // first look for -ovalue or -o=value + $pattern = "/^-{$letter}=?" . preg_quote($v, '/') . "$/"; + $foundInArgv = false; + foreach ($argvCopy as $k => $argV) { + if (preg_match($pattern, $argV)) { + array_splice($argvCopy, $k, 1); + $foundInArgv = true; + break; + } + } + if (! $foundInArgv) { + // space separated + $k = array_search("-$letter", $argvCopy); + if ($k !== false) { + array_splice($argvCopy, $k, 2); + } + } + + // check that value isn't really another option + if (strlen($lettersUsed) > 1) { + $pattern = "/^-[" . str_replace($letter, '', $lettersUsed) . "]/i"; + if (preg_match($pattern, $v)) { + $this->addError($letter, "Value was read as another option: %s", $v); + return false; + } + } + if ($arg->assertFile || $arg->assertDir) { + if ($v[0] !== '/' && $v[0] !== '~') { + $this->values["$letter.raw"] = $v; + $v = getcwd() . "/$v"; + } + } + if ($arg->assertFile) { + if ($arg->useAsInfile) { + $this->_stdin = $v; + } elseif ($arg->useAsOutfile) { + $this->_stdout = $v; + } + if ($arg->assertReadable && ! is_readable($v)) { + $this->addError($letter, "File not readable: %s", $v); + continue; + } + if ($arg->assertWritable) { + if (is_file($v)) { + if (! is_writable($v)) { + $this->addError($letter, "File not writable: %s", $v); + } + } else { + if (! is_writable(dirname($v))) { + $this->addError($letter, "Directory not writable: %s", dirname($v)); + } + } + } + } elseif ($arg->assertDir && $arg->assertWritable && ! is_writable($v)) { + $this->addError($letter, "Directory not readable: %s", $v); + } + } + } else { + if ($arg->isRequired()) { + $this->addError($letter, "Missing"); + } + } + } + $this->moreArgs = $argvCopy; + reset($this->moreArgs); + return empty($this->errors); + } + + /** + * Get the full paths of file(s) passed in as unspecified arguments + * + * @return array + */ + public function getPathArgs() + { + $r = $this->moreArgs; + foreach ($r as $k => $v) { + if ($v[0] !== '/' && $v[0] !== '~') { + $v = getcwd() . "/$v"; + $v = str_replace('/./', '/', $v); + do { + $v = preg_replace('@/[^/]+/\\.\\./@', '/', $v, 1, $changed); + } while ($changed); + $r[$k] = $v; + } + } + return $r; + } + + /** + * Get a short list of errors with options + * + * @return string + */ + public function getErrorReport() + { + if (empty($this->errors)) { + return ''; + } + $r = "Some arguments did not pass validation:\n"; + foreach ($this->errors as $letter => $arr) { + $r .= " $letter : " . implode(', ', $arr) . "\n"; + } + $r .= "\n"; + return $r; + } + + /** + * @return string + */ + public function getArgumentsListing() + { + $r = "\n"; + foreach ($this->_args as $letter => $arg) { + /* @var Cli\Arg $arg */ + $desc = $arg->getDescription(); + $flag = " -$letter "; + if ($arg->mayHaveValue) { + $flag .= "[VAL]"; + } elseif ($arg->mustHaveValue) { + $flag .= "VAL"; + } + if ($arg->assertFile) { + $flag = str_replace('VAL', 'FILE', $flag); + } elseif ($arg->assertDir) { + $flag = str_replace('VAL', 'DIR', $flag); + } + if ($arg->isRequired()) { + $desc = "(required) $desc"; + } + $flag = str_pad($flag, 12, " ", STR_PAD_RIGHT); + $desc = wordwrap($desc, 70); + $r .= $flag . str_replace("\n", "\n ", $desc) . "\n\n"; + } + return $r; + } + + /** + * Get resource of open input stream. May be STDIN or a file pointer + * to the file specified by an option with 'STDIN'. + * + * @return resource + */ + public function openInput() + { + if (null === $this->_stdin) { + return STDIN; + } else { + $this->_stdin = fopen($this->_stdin, 'rb'); + return $this->_stdin; + } + } + + public function closeInput() + { + if (null !== $this->_stdin) { + fclose($this->_stdin); + } + } + + /** + * Get resource of open output stream. May be STDOUT or a file pointer + * to the file specified by an option with 'STDOUT'. The file will be + * truncated to 0 bytes on opening. + * + * @return resource + */ + public function openOutput() + { + if (null === $this->_stdout) { + return STDOUT; + } else { + $this->_stdout = fopen($this->_stdout, 'wb'); + return $this->_stdout; + } + } + + public function closeOutput() + { + if (null !== $this->_stdout) { + fclose($this->_stdout); + } + } + + /** + * @param string $letter + * @param string $msg + * @param string $value + */ + protected function addError($letter, $msg, $value = null) + { + if ($value !== null) { + $value = var_export($value, 1); + } + $this->errors[$letter][] = sprintf($msg, $value); + } +} + diff --git a/inc/lib/minify/MrClay/Cli/Arg.php b/inc/lib/minify/MrClay/Cli/Arg.php new file mode 100755 index 00000000..81146a7f --- /dev/null +++ b/inc/lib/minify/MrClay/Cli/Arg.php @@ -0,0 +1,181 @@ +<?php + +namespace MrClay\Cli; + +/** + * An argument for a CLI app. This specifies the argument, what values it expects and + * how it's treated during validation. + * + * By default, the argument will be assumed to be an optional letter flag with no value following. + * + * If the argument may receive a value, call mayHaveValue(). If there's whitespace after the + * flag, the value will be returned as true instead of the string. + * + * If the argument MUST be accompanied by a value, call mustHaveValue(). In this case, whitespace + * is permitted between the flag and its value. + * + * Use assertFile() or assertDir() to indicate that the argument must return a string value + * specifying a file or directory. During validation, the value will be resolved to a + * full file/dir path (not necessarily existing!) and the original value will be accessible + * via a "*.raw" key. E.g. $cli->values['f.raw'] + * + * Use assertReadable()/assertWritable() to cause the validator to test the file/dir for + * read/write permissions respectively. + * + * @method \MrClay\Cli\Arg mayHaveValue() Assert that the argument, if present, may receive a string value + * @method \MrClay\Cli\Arg mustHaveValue() Assert that the argument, if present, must receive a string value + * @method \MrClay\Cli\Arg assertFile() Assert that the argument's value must specify a file + * @method \MrClay\Cli\Arg assertDir() Assert that the argument's value must specify a directory + * @method \MrClay\Cli\Arg assertReadable() Assert that the specified file/dir must be readable + * @method \MrClay\Cli\Arg assertWritable() Assert that the specified file/dir must be writable + * + * @property-read bool mayHaveValue + * @property-read bool mustHaveValue + * @property-read bool assertFile + * @property-read bool assertDir + * @property-read bool assertReadable + * @property-read bool assertWritable + * @property-read bool useAsInfile + * @property-read bool useAsOutfile + * + * @author Steve Clay <steve@mrclay.org> + * @license http://www.opensource.org/licenses/mit-license.php MIT License + */ +class Arg { + /** + * @return array + */ + public function getDefaultSpec() + { + return array( + 'mayHaveValue' => false, + 'mustHaveValue' => false, + 'assertFile' => false, + 'assertDir' => false, + 'assertReadable' => false, + 'assertWritable' => false, + 'useAsInfile' => false, + 'useAsOutfile' => false, + ); + } + + /** + * @var array + */ + protected $spec = array(); + + /** + * @var bool + */ + protected $required = false; + + /** + * @var string + */ + protected $description = ''; + + /** + * @param bool $isRequired + */ + public function __construct($isRequired = false) + { + $this->spec = $this->getDefaultSpec(); + $this->required = (bool) $isRequired; + if ($isRequired) { + $this->spec['mustHaveValue'] = true; + } + } + + /** + * Assert that the argument's value points to a writable file. When + * Cli::openOutput() is called, a write pointer to this file will + * be provided. + * @return Arg + */ + public function useAsOutfile() + { + $this->spec['useAsOutfile'] = true; + return $this->assertFile()->assertWritable(); + } + + /** + * Assert that the argument's value points to a readable file. When + * Cli::openInput() is called, a read pointer to this file will + * be provided. + * @return Arg + */ + public function useAsInfile() + { + $this->spec['useAsInfile'] = true; + return $this->assertFile()->assertReadable(); + } + + /** + * @return array + */ + public function getSpec() + { + return $this->spec; + } + + /** + * @param string $desc + * @return Arg + */ + public function setDescription($desc) + { + $this->description = $desc; + return $this; + } + + /** + * @return string + */ + public function getDescription() + { + return $this->description; + } + + /** + * @return bool + */ + public function isRequired() + { + return $this->required; + } + + /** + * Note: magic methods declared in class PHPDOC + * + * @param string $name + * @param array $args + * @return Arg + * @throws \BadMethodCallException + */ + public function __call($name, array $args = array()) + { + if (array_key_exists($name, $this->spec)) { + $this->spec[$name] = true; + if ($name === 'assertFile' || $name === 'assertDir') { + $this->spec['mustHaveValue'] = true; + } + } else { + throw new \BadMethodCallException('Method does not exist'); + } + return $this; + } + + /** + * Note: magic properties declared in class PHPDOC + * + * @param string $name + * @return bool|null + */ + public function __get($name) + { + if (array_key_exists($name, $this->spec)) { + return $this->spec[$name]; + } + return null; + } +} |
