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< ? php
/*
* This file is part of the Symfony package .
*
* ( c ) Fabien Potencier < fabien @ symfony . com >
*
* For the full copyright and license information , please view the LICENSE
* file that was distributed with this source code .
*/
namespace Symfony\Component\Yaml\Command ;
use Symfony\Component\Console\CI\GithubActionReporter ;
use Symfony\Component\Console\Command\Command ;
use Symfony\Component\Console\Completion\CompletionInput ;
use Symfony\Component\Console\Completion\CompletionSuggestions ;
use Symfony\Component\Console\Exception\InvalidArgumentException ;
use Symfony\Component\Console\Exception\RuntimeException ;
use Symfony\Component\Console\Input\InputArgument ;
use Symfony\Component\Console\Input\InputInterface ;
use Symfony\Component\Console\Input\InputOption ;
use Symfony\Component\Console\Output\OutputInterface ;
use Symfony\Component\Console\Style\SymfonyStyle ;
use Symfony\Component\Yaml\Exception\ParseException ;
use Symfony\Component\Yaml\Parser ;
use Symfony\Component\Yaml\Yaml ;
/**
* Validates YAML files syntax and outputs encountered errors .
*
* @ author Grégoire Pineau < lyrixx @ lyrixx . info >
* @ author Robin Chalas < robin . chalas @ gmail . com >
*/
class LintCommand extends Command
{
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protected static $defaultName = 'lint:yaml' ;
protected static $defaultDescription = 'Lint a YAML file and outputs encountered errors' ;
private $parser ;
private $format ;
private $displayCorrectFiles ;
private $directoryIteratorProvider ;
private $isReadableProvider ;
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public function __construct ( ? string $name = null , ? callable $directoryIteratorProvider = null , ? callable $isReadableProvider = null )
{
parent :: __construct ( $name );
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$this -> directoryIteratorProvider = $directoryIteratorProvider ;
$this -> isReadableProvider = $isReadableProvider ;
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}
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/**
* { @ inheritdoc }
*/
protected function configure ()
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{
$this
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-> setDescription ( self :: $defaultDescription )
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-> addArgument ( 'filename' , InputArgument :: IS_ARRAY , 'A file, a directory or "-" for reading from STDIN' )
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-> addOption ( 'format' , null , InputOption :: VALUE_REQUIRED , 'The output format' )
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-> addOption ( 'exclude' , null , InputOption :: VALUE_REQUIRED | InputOption :: VALUE_IS_ARRAY , 'Path(s) to exclude' )
-> addOption ( 'parse-tags' , null , InputOption :: VALUE_NEGATABLE , 'Parse custom tags' , null )
-> setHelp ( <<< EOF
The < info >% command . name %</ info > command lints a YAML file and outputs to STDOUT
the first encountered syntax error .
You can validates YAML contents passed from STDIN :
< info > cat filename | php % command . full_name % -</ info >
You can also validate the syntax of a file :
< info > php % command . full_name % filename </ info >
Or of a whole directory :
< info > php % command . full_name % dirname </ info >
< info > php % command . full_name % dirname -- format = json </ info >
You can also exclude one or more specific files :
< info > php % command . full_name % dirname -- exclude = " dirname/foo.yaml " -- exclude = " dirname/bar.yaml " </ info >
EOF
)
;
}
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protected function execute ( InputInterface $input , OutputInterface $output )
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{
$io = new SymfonyStyle ( $input , $output );
$filenames = ( array ) $input -> getArgument ( 'filename' );
$excludes = $input -> getOption ( 'exclude' );
$this -> format = $input -> getOption ( 'format' );
$flags = $input -> getOption ( 'parse-tags' );
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if ( 'github' === $this -> format && ! class_exists ( GithubActionReporter :: class )) {
throw new \InvalidArgumentException ( 'The "github" format is only available since "symfony/console" >= 5.3.' );
}
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if ( null === $this -> format ) {
// Autodetect format according to CI environment
$this -> format = class_exists ( GithubActionReporter :: class ) && GithubActionReporter :: isGithubActionEnvironment () ? 'github' : 'txt' ;
}
$flags = $flags ? Yaml :: PARSE_CUSTOM_TAGS : 0 ;
$this -> displayCorrectFiles = $output -> isVerbose ();
if ([ '-' ] === $filenames ) {
return $this -> display ( $io , [ $this -> validate ( file_get_contents ( 'php://stdin' ), $flags )]);
}
if ( ! $filenames ) {
throw new RuntimeException ( 'Please provide a filename or pipe file content to STDIN.' );
}
$filesInfo = [];
foreach ( $filenames as $filename ) {
if ( ! $this -> isReadable ( $filename )) {
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throw new RuntimeException ( sprintf ( 'File or directory "%s" is not readable.' , $filename ));
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}
foreach ( $this -> getFiles ( $filename ) as $file ) {
if ( ! \in_array ( $file -> getPathname (), $excludes , true )) {
$filesInfo [] = $this -> validate ( file_get_contents ( $file ), $flags , $file );
}
}
}
return $this -> display ( $io , $filesInfo );
}
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private function validate ( string $content , int $flags , ? string $file = null )
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{
$prevErrorHandler = set_error_handler ( function ( $level , $message , $file , $line ) use ( & $prevErrorHandler ) {
if ( \E_USER_DEPRECATED === $level ) {
throw new ParseException ( $message , $this -> getParser () -> getRealCurrentLineNb () + 1 );
}
return $prevErrorHandler ? $prevErrorHandler ( $level , $message , $file , $line ) : false ;
});
try {
$this -> getParser () -> parse ( $content , Yaml :: PARSE_CONSTANT | $flags );
} catch ( ParseException $e ) {
return [ 'file' => $file , 'line' => $e -> getParsedLine (), 'valid' => false , 'message' => $e -> getMessage ()];
} finally {
restore_error_handler ();
}
return [ 'file' => $file , 'valid' => true ];
}
private function display ( SymfonyStyle $io , array $files ) : int
{
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switch ( $this -> format ) {
case 'txt' :
return $this -> displayTxt ( $io , $files );
case 'json' :
return $this -> displayJson ( $io , $files );
case 'github' :
return $this -> displayTxt ( $io , $files , true );
default :
throw new InvalidArgumentException ( sprintf ( 'The format "%s" is not supported.' , $this -> format ));
}
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}
private function displayTxt ( SymfonyStyle $io , array $filesInfo , bool $errorAsGithubAnnotations = false ) : int
{
$countFiles = \count ( $filesInfo );
$erroredFiles = 0 ;
$suggestTagOption = false ;
if ( $errorAsGithubAnnotations ) {
$githubReporter = new GithubActionReporter ( $io );
}
foreach ( $filesInfo as $info ) {
if ( $info [ 'valid' ] && $this -> displayCorrectFiles ) {
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$io -> comment ( '<info>OK</info>' . ( $info [ 'file' ] ? sprintf ( ' in %s' , $info [ 'file' ]) : '' ));
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} elseif ( ! $info [ 'valid' ]) {
++ $erroredFiles ;
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$io -> text ( '<error> ERROR </error>' . ( $info [ 'file' ] ? sprintf ( ' in %s' , $info [ 'file' ]) : '' ));
$io -> text ( sprintf ( '<error> >> %s</error>' , $info [ 'message' ]));
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if ( false !== strpos ( $info [ 'message' ], 'PARSE_CUSTOM_TAGS' )) {
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$suggestTagOption = true ;
}
if ( $errorAsGithubAnnotations ) {
$githubReporter -> error ( $info [ 'message' ], $info [ 'file' ] ? ? 'php://stdin' , $info [ 'line' ]);
}
}
}
if ( 0 === $erroredFiles ) {
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$io -> success ( sprintf ( 'All %d YAML files contain valid syntax.' , $countFiles ));
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} else {
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$io -> warning ( sprintf ( '%d YAML files have valid syntax and %d contain errors.%s' , $countFiles - $erroredFiles , $erroredFiles , $suggestTagOption ? ' Use the --parse-tags option if you want parse custom tags.' : '' ));
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}
return min ( $erroredFiles , 1 );
}
private function displayJson ( SymfonyStyle $io , array $filesInfo ) : int
{
$errors = 0 ;
array_walk ( $filesInfo , function ( & $v ) use ( & $errors ) {
$v [ 'file' ] = ( string ) $v [ 'file' ];
if ( ! $v [ 'valid' ]) {
++ $errors ;
}
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if ( isset ( $v [ 'message' ]) && false !== strpos ( $v [ 'message' ], 'PARSE_CUSTOM_TAGS' )) {
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$v [ 'message' ] .= ' Use the --parse-tags option if you want parse custom tags.' ;
}
});
$io -> writeln ( json_encode ( $filesInfo , \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES ));
return min ( $errors , 1 );
}
private function getFiles ( string $fileOrDirectory ) : iterable
{
if ( is_file ( $fileOrDirectory )) {
yield new \SplFileInfo ( $fileOrDirectory );
return ;
}
foreach ( $this -> getDirectoryIterator ( $fileOrDirectory ) as $file ) {
if ( ! \in_array ( $file -> getExtension (), [ 'yml' , 'yaml' ])) {
continue ;
}
yield $file ;
}
}
private function getParser () : Parser
{
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if ( ! $this -> parser ) {
$this -> parser = new Parser ();
}
return $this -> parser ;
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}
private function getDirectoryIterator ( string $directory ) : iterable
{
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$default = function ( $directory ) {
return new \RecursiveIteratorIterator (
new \RecursiveDirectoryIterator ( $directory , \FilesystemIterator :: SKIP_DOTS | \FilesystemIterator :: FOLLOW_SYMLINKS ),
\RecursiveIteratorIterator :: LEAVES_ONLY
);
};
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if ( null !== $this -> directoryIteratorProvider ) {
return ( $this -> directoryIteratorProvider )( $directory , $default );
}
return $default ( $directory );
}
private function isReadable ( string $fileOrDirectory ) : bool
{
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$default = function ( $fileOrDirectory ) {
return is_readable ( $fileOrDirectory );
};
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if ( null !== $this -> isReadableProvider ) {
return ( $this -> isReadableProvider )( $fileOrDirectory , $default );
}
return $default ( $fileOrDirectory );
}
public function complete ( CompletionInput $input , CompletionSuggestions $suggestions ) : void
{
if ( $input -> mustSuggestOptionValuesFor ( 'format' )) {
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$suggestions -> suggestValues ([ 'txt' , 'json' , 'github' ]);
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}
}
}