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| 1 | <?php |
| 2 | /** |
| 3 | * A filter for PHP CodeSniffer to add support for .phpcsignore files and per-directory configuration files. |
| 4 | * |
| 5 | * @package automattic/jetpack-phpcs-filter |
| 6 | */ |
| 7 | |
| 8 | namespace PHP_CodeSniffer\Filters\Automattic; |
| 9 | |
| 10 | use Automattic\IgnoreFile; |
| 11 | use PHP_CodeSniffer\Config; |
| 12 | use PHP_CodeSniffer\Exceptions\DeepExitException; |
| 13 | use PHP_CodeSniffer\Exceptions\RuntimeException; |
| 14 | use PHP_CodeSniffer\Files\LocalFile; |
| 15 | use PHP_CodeSniffer\Filters\Filter; |
| 16 | use PHP_CodeSniffer\Ruleset; |
| 17 | use PHP_CodeSniffer\Util; |
| 18 | use SplFileInfo; |
| 19 | |
| 20 | /** |
| 21 | * A filter for PHP CodeSniffer to add support for .phpcsignore files and per-directory configuration files. |
| 22 | */ |
| 23 | class JetpackPhpcsFilter extends Filter { |
| 24 | |
| 25 | /** |
| 26 | * Enable generation of LocalFile objects instead of string|SplFileInfo. |
| 27 | * |
| 28 | * @var boolean |
| 29 | */ |
| 30 | protected $produceLocalFileObjects = true; |
| 31 | |
| 32 | /** |
| 33 | * Base directory for the scan. |
| 34 | * |
| 35 | * @var string |
| 36 | */ |
| 37 | protected $filterBaseDir; |
| 38 | |
| 39 | /** |
| 40 | * Per-directory config file name. |
| 41 | * |
| 42 | * @var string |
| 43 | */ |
| 44 | protected $perDirFileName = '.phpcs.dir.xml'; |
| 45 | |
| 46 | /** |
| 47 | * Process ignore files. |
| 48 | * |
| 49 | * @var boolean |
| 50 | */ |
| 51 | protected $doIgnore = true; |
| 52 | |
| 53 | /** |
| 54 | * Process .gitignore files. |
| 55 | * |
| 56 | * @var boolean |
| 57 | */ |
| 58 | protected $useGitignore = true; |
| 59 | |
| 60 | /** |
| 61 | * IgnoreFile instance for processing .phpcsignore. |
| 62 | * |
| 63 | * @var IgnoreFile |
| 64 | */ |
| 65 | protected $ignoreFile; |
| 66 | |
| 67 | /** |
| 68 | * Whether a .phpcsignore was checked for for a path. |
| 69 | * |
| 70 | * @var bool[] |
| 71 | */ |
| 72 | protected $ignoreLoaded = array(); |
| 73 | |
| 74 | /** |
| 75 | * Cache of Config and Ruleset objects by directory. |
| 76 | * |
| 77 | * @var array |
| 78 | */ |
| 79 | protected $configCache = array(); |
| 80 | |
| 81 | /** |
| 82 | * Constructs a filter. |
| 83 | * |
| 84 | * @param \RecursiveIterator $iterator The iterator we are using to get file paths. |
| 85 | * @param string $basedir The top-level path we are filtering. |
| 86 | * @param \PHP_CodeSniffer\Config $config The config data for the run. |
| 87 | * @param \PHP_CodeSniffer\Ruleset $ruleset The ruleset used for the run. |
| 88 | * @param JetpackPhpcsFilter|null $copyFrom Used from getChildren(). |
| 89 | * @throws DeepExitException On error. |
| 90 | */ |
| 91 | public function __construct( $iterator, $basedir, Config $config, Ruleset $ruleset, ?JetpackPhpcsFilter $copyFrom = null ) { |
| 92 | parent::__construct( $iterator, $basedir, $config, $ruleset ); |
| 93 | |
| 94 | if ( $copyFrom ) { |
| 95 | if ( $this->ruleset === $copyFrom->ruleset ) { |
| 96 | // Only copy these if the ruleset is the same. If it changed, these need to be regenerated. |
| 97 | $this->ignoreDirPatterns = $copyFrom->ignoreDirPatterns; |
| 98 | $this->ignoreFilePatterns = $copyFrom->ignoreFilePatterns; |
| 99 | } |
| 100 | $this->acceptedPaths = $copyFrom->acceptedPaths; |
| 101 | $this->filterBaseDir = $copyFrom->filterBaseDir; |
| 102 | $this->perDirFileName = $copyFrom->perDirFileName; |
| 103 | $this->doIgnore = $copyFrom->doIgnore; |
| 104 | $this->useGitignore = $copyFrom->useGitignore; |
| 105 | $this->ignoreFile = $copyFrom->ignoreFile; |
| 106 | $this->ignoreLoaded = &$copyFrom->ignoreLoaded; |
| 107 | $this->configCache = &$copyFrom->configCache; |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | $noIgnore = $config->getConfigData( 'jetpack-filter-no-ignore' ); |
| 112 | if ( null !== $noIgnore ) { |
| 113 | $this->doIgnore = ! $noIgnore; |
| 114 | } |
| 115 | |
| 116 | $useGitignore = $config->getConfigData( 'jetpack-filter-use-gitignore' ); |
| 117 | if ( null !== $useGitignore ) { |
| 118 | $this->useGitignore = (bool) $useGitignore; |
| 119 | } |
| 120 | |
| 121 | $perDirFileName = $config->getConfigData( 'jetpack-filter-perdir-file' ); |
| 122 | if ( null !== $perDirFileName ) { |
| 123 | $this->perDirFileName = $perDirFileName; |
| 124 | } |
| 125 | |
| 126 | $dir = $config->getConfigData( 'jetpack-filter-basedir' ); |
| 127 | if ( null === $dir ) { |
| 128 | $dir = '.'; |
| 129 | } |
| 130 | |
| 131 | $realDir = Util\Common::realpath( $dir ); |
| 132 | // @codeCoverageIgnoreStart |
| 133 | if ( false === $realDir ) { |
| 134 | throw new DeepExitException( 'ERROR: ' . static::class . ": Specified base dir $dir does not exist.", 3 ); |
| 135 | } |
| 136 | if ( ! is_dir( $realDir ) ) { |
| 137 | throw new DeepExitException( 'ERROR: ' . static::class . ": Specified base dir $dir is not a directory.", 3 ); |
| 138 | } |
| 139 | // @codeCoverageIgnoreEnd |
| 140 | $this->filterBaseDir = $realDir; |
| 141 | |
| 142 | // @codeCoverageIgnoreStart |
| 143 | if ( PHP_CODESNIFFER_VERBOSITY > 0 ) { |
| 144 | echo "\n" . static::class . ": Using base directory $this->filterBaseDir\n"; |
| 145 | } |
| 146 | // @codeCoverageIgnoreEnd |
| 147 | |
| 148 | $this->ignoreFile = new IgnoreFile(); |
| 149 | |
| 150 | $this->configCache[ $this->filterBaseDir ] = array( $config, $ruleset ); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Test if we've reached the base directory. |
| 155 | * |
| 156 | * @param string $dir Dir to match. |
| 157 | * @return bool |
| 158 | */ |
| 159 | protected function reachedBaseDir( $dir ) { |
| 160 | $realDir = Util\Common::realpath( $dir ); |
| 161 | return ( $realDir === $this->filterBaseDir || substr( "$this->filterBaseDir/", 0, strlen( $realDir ) + 1 ) === "$realDir/" ); |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Load the .phpcsignore file for a path. |
| 166 | * |
| 167 | * @param string $path Path. |
| 168 | */ |
| 169 | protected function loadIgnoreFiles( $path ) { |
| 170 | if ( ! $this->doIgnore ) { |
| 171 | return; |
| 172 | } |
| 173 | |
| 174 | $dir = is_dir( $path ) ? (string) $path : dirname( $path ); |
| 175 | |
| 176 | // Already cached? |
| 177 | if ( ! empty( $this->ignoreLoaded[ $dir ] ) ) { |
| 178 | return; |
| 179 | } |
| 180 | |
| 181 | // Have we passed the base dir? But still process if this *is* the base dir. |
| 182 | if ( $this->reachedBaseDir( $dir ) && Util\Common::realpath( $dir ) !== $this->filterBaseDir ) { |
| 183 | return; |
| 184 | } |
| 185 | |
| 186 | // Mark as loaded, since we're doing so now. |
| 187 | $this->ignoreLoaded[ $dir ] = true; |
| 188 | |
| 189 | // Load any parent .phpcsignore. |
| 190 | $parent = dirname( $dir ); |
| 191 | if ( $parent !== $dir ) { |
| 192 | $this->loadIgnoreFiles( $parent ); |
| 193 | } |
| 194 | |
| 195 | // Read any .gitignore and .phpcsignore in the current dir now. |
| 196 | if ( $this->useGitignore && file_exists( "$dir/.gitignore" ) ) { |
| 197 | // @codeCoverageIgnoreStart |
| 198 | if ( PHP_CODESNIFFER_VERBOSITY > 0 ) { |
| 199 | echo static::class . ": Loading $dir/.gitignore\n"; |
| 200 | } |
| 201 | // @codeCoverageIgnoreEnd |
| 202 | $data = file_get_contents( "$dir/.gitignore" ); |
| 203 | if ( false === $data ) { |
| 204 | fprintf( STDERR, "WARN: Failed to read gitignore file %s\n", "$dir/.gitignore" ); // @codeCoverageIgnore |
| 205 | } else { |
| 206 | $this->ignoreFile->add( $data, "$dir/" ); |
| 207 | } |
| 208 | } |
| 209 | if ( file_exists( "$dir/.phpcsignore" ) ) { |
| 210 | // @codeCoverageIgnoreStart |
| 211 | if ( PHP_CODESNIFFER_VERBOSITY > 0 ) { |
| 212 | echo static::class . ": Loading $dir/.phpcsignore\n"; |
| 213 | } |
| 214 | // @codeCoverageIgnoreEnd |
| 215 | $data = file_get_contents( "$dir/.phpcsignore" ); |
| 216 | if ( false === $data ) { |
| 217 | fprintf( STDERR, "WARN: Failed to read phpcsignore file %s\n", "$dir/.phpcsignore" ); // @codeCoverageIgnore |
| 218 | } else { |
| 219 | $this->ignoreFile->add( $data, "$dir/" ); |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Fetch the Config and Ruleset for a path. |
| 226 | * |
| 227 | * @param string $path Path. |
| 228 | * @return array [ Config, Ruleset ] |
| 229 | * @throws DeepExitException On error. |
| 230 | */ |
| 231 | public function getConfigAndRuleset( $path ) { |
| 232 | $dir = is_dir( $path ) ? (string) $path : dirname( $path ); |
| 233 | if ( $this->reachedBaseDir( $dir ) ) { |
| 234 | $dir = $this->filterBaseDir; |
| 235 | } |
| 236 | |
| 237 | // Already cached? |
| 238 | if ( isset( $this->configCache[ $dir ] ) ) { |
| 239 | return $this->configCache[ $dir ]; |
| 240 | } |
| 241 | |
| 242 | // Nope. Fetch parent, then possibly modify. |
| 243 | $parent = dirname( $dir ); |
| 244 | list( $config, $ruleset ) = $this->getConfigAndRuleset( $parent === $dir ? $this->filterBaseDir : $parent ); |
| 245 | |
| 246 | // Per directory config file found? Create a new Config and Ruleset for it. |
| 247 | if ( file_exists( "$dir/$this->perDirFileName" ) ) { |
| 248 | // @codeCoverageIgnoreStart |
| 249 | if ( PHP_CODESNIFFER_VERBOSITY > 0 ) { |
| 250 | echo static::class . ": Loading $dir/$this->perDirFileName\n"; |
| 251 | } |
| 252 | // @codeCoverageIgnoreEnd |
| 253 | $config = clone $config; |
| 254 | $config->standards = array_merge( $config->standards, array( "$dir/$this->perDirFileName" ) ); |
| 255 | try { |
| 256 | $ruleset = new Ruleset( $config ); |
| 257 | // @codeCoverageIgnoreStart |
| 258 | } catch ( RuntimeException $e ) { |
| 259 | $error = 'ERROR: ' . $e->getMessage() . PHP_EOL . PHP_EOL; |
| 260 | $error .= $this->config->printShortUsage( true ); |
| 261 | throw new DeepExitException( $error, 3 ); |
| 262 | } |
| 263 | // @codeCoverageIgnoreEnd |
| 264 | } |
| 265 | |
| 266 | $this->configCache[ $dir ] = array( $config, $ruleset ); |
| 267 | return $this->configCache[ $dir ]; |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * Check if a path should be processed. |
| 272 | * |
| 273 | * @param string|SplFileInfo $path The path to the file or directory being checked. |
| 274 | * @return bool |
| 275 | */ |
| 276 | protected function shouldProcessFile( $path ) { |
| 277 | $old = array( $this->config, $this->ruleset ); |
| 278 | try { |
| 279 | list( $this->config, $this->ruleset ) = $this->getConfigAndRuleset( $path ); |
| 280 | $ret = parent::shouldProcessFile( $path ); |
| 281 | } finally { |
| 282 | list( $this->config, $this->ruleset ) = $old; |
| 283 | } |
| 284 | // @phan-suppress-next-line PhanPossiblyUndeclaredVariable,PhanTypeMismatchReturnNullable -- https://github.com/phan/phan/issues/4419 |
| 285 | return $ret; |
| 286 | } |
| 287 | |
| 288 | /** |
| 289 | * Check if a path should be ignored. |
| 290 | * |
| 291 | * @param string|SplFileInfo $path The path to the file or directory being checked. |
| 292 | * @return bool |
| 293 | */ |
| 294 | protected function shouldIgnorePath( $path ) { |
| 295 | $this->loadIgnoreFiles( $path ); |
| 296 | if ( $this->ignoreFile->ignores( is_dir( $path ) ? "$path/" : $path ) ) { |
| 297 | return true; |
| 298 | } |
| 299 | |
| 300 | $old = array( $this->config, $this->ruleset ); |
| 301 | try { |
| 302 | list( $this->config, $this->ruleset ) = $this->getConfigAndRuleset( $path ); |
| 303 | $ret = parent::shouldIgnorePath( $path ); |
| 304 | } finally { |
| 305 | list( $this->config, $this->ruleset ) = $old; |
| 306 | } |
| 307 | // @phan-suppress-next-line PhanPossiblyUndeclaredVariable,PhanTypeMismatchReturnNullable -- https://github.com/phan/phan/issues/4419 |
| 308 | return $ret; |
| 309 | } |
| 310 | |
| 311 | /** |
| 312 | * Map the input string or SplFileInfo into a LocalFile. |
| 313 | * |
| 314 | * @return string|LocalFile |
| 315 | */ |
| 316 | public function current() { |
| 317 | $iterator = $this->getInnerIterator(); |
| 318 | '@phan-var \RecursiveIterator $iterator'; // Phan has the type wrong somehow. This is the iterator passed to `__construct()`. |
| 319 | $filePath = (string) $iterator->current(); |
| 320 | if ( is_dir( $filePath ) ) { |
| 321 | return $filePath; |
| 322 | } |
| 323 | list( $config, $ruleset ) = $this->getConfigAndRuleset( $filePath ); |
| 324 | return new LocalFile( $filePath, $ruleset, $config ); |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * Returns an iterator for the current entry. |
| 329 | * |
| 330 | * @return static |
| 331 | */ |
| 332 | public function getChildren() { |
| 333 | $iterator = $this->getInnerIterator(); |
| 334 | '@phan-var \RecursiveIterator $iterator'; // Phan has the type wrong somehow. This is the iterator passed to `__construct()`. |
| 335 | $filePath = (string) $iterator->current(); |
| 336 | list( $config, $ruleset ) = $this->getConfigAndRuleset( $filePath ); |
| 337 | return new static( |
| 338 | new \RecursiveDirectoryIterator( $filePath, \RecursiveDirectoryIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS ), |
| 339 | $this->basedir, |
| 340 | $config, |
| 341 | $ruleset, |
| 342 | $this |
| 343 | ); |
| 344 | } |
| 345 | } |