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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | namespace MediaWiki\Maintenance; |
| 22 | |
| 23 | use UnexpectedValueException; |
| 24 | |
| 25 | /** |
| 26 | * Command line parameter handling for maintenance scripts. |
| 27 | * |
| 28 | * @since 1.39 |
| 29 | * @ingroup Maintenance |
| 30 | */ |
| 31 | class MaintenanceParameters { |
| 32 | |
| 33 | /** |
| 34 | * Array of desired/allowed params |
| 35 | * @var array<string,array> |
| 36 | * @phan-var array<string,array{desc:string,require:bool,withArg:string,shortName:string|bool,multiOccurrence:bool}> |
| 37 | */ |
| 38 | private $mOptDefs = []; |
| 39 | |
| 40 | /** @var array<string,string> Mapping short options to long ones */ |
| 41 | private $mShortOptionMap = []; |
| 42 | |
| 43 | /** @var array<int,array> Desired/allowed args */ |
| 44 | private $mArgDefs = []; |
| 45 | |
| 46 | /** @var array<string,int> Map of arg names to offsets */ |
| 47 | private $mArgOffsets = []; |
| 48 | |
| 49 | /** @var bool Allow arbitrary options to be passed, or only specified ones? */ |
| 50 | private $mAllowUnregisteredOptions = false; |
| 51 | |
| 52 | /** @var string|null Name of the script currently running */ |
| 53 | private $mName = null; |
| 54 | |
| 55 | /** @var string|null A description of the script, children should change this via addDescription() */ |
| 56 | private $mDescription = null; |
| 57 | |
| 58 | /** @var array<string,string> This is the list of options that were actually passed */ |
| 59 | private $mOptions = []; |
| 60 | |
| 61 | /** @var array<int,string> This is the list of arguments that were actually passed */ |
| 62 | private $mArgs = []; |
| 63 | |
| 64 | /** @var array<string,array> maps group names to lists of option names */ |
| 65 | private $mOptionGroups = []; |
| 66 | |
| 67 | /** |
| 68 | * Used to read the options in the order they were passed. |
| 69 | * This is an array of arrays where |
| 70 | * 0 => the option name and 1 => option value. |
| 71 | * |
| 72 | * @var array |
| 73 | */ |
| 74 | private $optionsSequence = []; |
| 75 | |
| 76 | /** @var string[] */ |
| 77 | private $errors = []; |
| 78 | |
| 79 | /** @var string */ |
| 80 | private $usagePrefix = 'php maintenance/run.php'; |
| 81 | |
| 82 | /** |
| 83 | * Returns a reference to a member field. |
| 84 | * This is a backwards compatibility hack, it should be removed as soon as possible! |
| 85 | * |
| 86 | * @param string $fieldName |
| 87 | * |
| 88 | * @return mixed A reference to a member field |
| 89 | * @internal For use by the Maintenance class, for backwards compatibility support. |
| 90 | */ |
| 91 | public function &getFieldReference( string $fieldName ) { |
| 92 | return $this->$fieldName; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Assigns a list of options to the given group. |
| 97 | * The given options will be shown as part of the given group |
| 98 | * in the help message. |
| 99 | * |
| 100 | * @param string $groupName |
| 101 | * @param array $paramNames |
| 102 | */ |
| 103 | public function assignGroup( string $groupName, array $paramNames ) { |
| 104 | $this->mOptionGroups[ $groupName ] = array_merge( |
| 105 | $this->mOptionGroups[ $groupName ] ?? [], |
| 106 | $paramNames |
| 107 | ); |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Checks to see if a particular option in supported. Normally this means it |
| 112 | * has been registered by the script via addOption. |
| 113 | * @param string $name The name of the option<string,string> |
| 114 | * @return bool true if the option exists, false otherwise |
| 115 | */ |
| 116 | public function supportsOption( string $name ) { |
| 117 | return isset( $this->mOptDefs[$name] ); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Add a option to the script. Will be displayed on --help |
| 122 | * with the associated description |
| 123 | * |
| 124 | * @param string $name The name of the param (help, version, etc) |
| 125 | * @param string $description The description of the param to show on --help |
| 126 | * @param bool $required Is the param required? |
| 127 | * @param bool $withArg Is an argument required with this option? |
| 128 | * @param string|bool $shortName Character to use as short name |
| 129 | * @param bool $multiOccurrence Can this option be passed multiple times? |
| 130 | */ |
| 131 | public function addOption( string $name, string $description, bool $required = false, |
| 132 | bool $withArg = false, $shortName = false, bool $multiOccurrence = false |
| 133 | ) { |
| 134 | $this->mOptDefs[$name] = [ |
| 135 | 'desc' => $description, |
| 136 | 'require' => $required, |
| 137 | 'withArg' => $withArg, |
| 138 | 'shortName' => $shortName, |
| 139 | 'multiOccurrence' => $multiOccurrence |
| 140 | ]; |
| 141 | |
| 142 | if ( $shortName !== false ) { |
| 143 | $this->mShortOptionMap[$shortName] = $name; |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Checks to see if a particular option was set. |
| 149 | * |
| 150 | * @param string $name The name of the option |
| 151 | * @return bool |
| 152 | */ |
| 153 | public function hasOption( string $name ): bool { |
| 154 | return isset( $this->mOptions[$name] ); |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Get the value of an option, or return the default. |
| 159 | * |
| 160 | * If the option was defined to support multiple occurrences, |
| 161 | * this will return an array. |
| 162 | * |
| 163 | * @param string $name The name of the param |
| 164 | * @param mixed|null $default Anything you want, default null |
| 165 | * @return mixed |
| 166 | * @return-taint none |
| 167 | */ |
| 168 | public function getOption( string $name, $default = null ) { |
| 169 | if ( $this->hasOption( $name ) ) { |
| 170 | return $this->mOptions[$name]; |
| 171 | } else { |
| 172 | return $default; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Define a positional argument. getArg() can later be used to get the value given |
| 178 | * for the argument, by index or by name. |
| 179 | * |
| 180 | * @param string $arg Name of the arg, like 'start' |
| 181 | * @param string $description Short description of the arg |
| 182 | * @param bool $required Is this required? |
| 183 | * @param bool $multi Does it allow multiple values? (Last arg only) |
| 184 | * @return int the offset of the argument |
| 185 | */ |
| 186 | public function addArg( string $arg, string $description, bool $required = true, bool $multi = false ): int { |
| 187 | if ( isset( $this->mArgOffsets[$arg] ) ) { |
| 188 | throw new UnexpectedValueException( "Argument already defined: $arg" ); |
| 189 | } |
| 190 | |
| 191 | $argCount = count( $this->mArgDefs ); |
| 192 | if ( $argCount ) { |
| 193 | $prevArg = $this->mArgDefs[ $argCount - 1 ]; |
| 194 | if ( !$prevArg['require'] && $required ) { |
| 195 | throw new UnexpectedValueException( |
| 196 | "Required argument {$arg} cannot follow an optional argument {$prevArg['name']}" |
| 197 | ); |
| 198 | } |
| 199 | |
| 200 | if ( $prevArg['multi'] ) { |
| 201 | throw new UnexpectedValueException( |
| 202 | "Argument {$arg} cannot follow multi-value argument {$prevArg['name']}" |
| 203 | ); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | $this->mArgDefs[] = [ |
| 208 | 'name' => $arg, |
| 209 | 'desc' => $description, |
| 210 | 'require' => $required, |
| 211 | 'multi' => $multi, |
| 212 | ]; |
| 213 | |
| 214 | $ofs = count( $this->mArgDefs ) - 1; |
| 215 | $this->mArgOffsets[$arg] = $ofs; |
| 216 | return $ofs; |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Remove an option. Useful for removing options that won't be used in your script. |
| 221 | * @param string $name The option to remove. |
| 222 | */ |
| 223 | public function deleteOption( string $name ) { |
| 224 | unset( $this->mOptDefs[$name] ); |
| 225 | unset( $this->mOptions[$name] ); |
| 226 | |
| 227 | foreach ( $this->optionsSequence as $i => [ $opt, ] ) { |
| 228 | if ( $opt === $name ) { |
| 229 | unset( $this->optionsSequence[$i] ); |
| 230 | break; |
| 231 | } |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Sets whether to allow unknown options to be passed to the script. |
| 237 | * Per default, unknown options cause an error. |
| 238 | * @param bool $allow Should we allow? |
| 239 | */ |
| 240 | public function setAllowUnregisteredOptions( bool $allow ) { |
| 241 | $this->mAllowUnregisteredOptions = $allow; |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Set a short description of what the script does. |
| 246 | * @param string $text |
| 247 | */ |
| 248 | public function setDescription( string $text ) { |
| 249 | $this->mDescription = $text; |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Was a value for the given argument provided? |
| 254 | * @param int|string $argId The index (from zero) of the argument, or |
| 255 | * the name declared for the argument by addArg(). |
| 256 | * @return bool |
| 257 | */ |
| 258 | public function hasArg( $argId ): bool { |
| 259 | // arg lookup by name |
| 260 | if ( is_string( $argId ) && isset( $this->mArgOffsets[$argId] ) ) { |
| 261 | $argId = $this->mArgOffsets[$argId]; |
| 262 | } |
| 263 | |
| 264 | return isset( $this->mArgs[$argId] ); |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * Get an argument. |
| 269 | * @param int|string $argId The index (from zero) of the argument, or |
| 270 | * the name declared for the argument by addArg(). |
| 271 | * @param string|null $default The default if it doesn't exist |
| 272 | * @return string|null |
| 273 | * @return-taint none |
| 274 | */ |
| 275 | public function getArg( $argId, ?string $default = null ): ?string { |
| 276 | // arg lookup by name |
| 277 | if ( is_string( $argId ) && isset( $this->mArgOffsets[$argId] ) ) { |
| 278 | $argId = $this->mArgOffsets[$argId]; |
| 279 | } |
| 280 | |
| 281 | return $this->mArgs[$argId] ?? $default; |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Get arguments. |
| 286 | * @param int|string $offset The index (from zero) of the first argument, or |
| 287 | * the name declared for the argument by addArg(). |
| 288 | * @return string[] |
| 289 | */ |
| 290 | public function getArgs( $offset = 0 ): array { |
| 291 | if ( is_string( $offset ) && isset( $this->mArgOffsets[$offset] ) ) { |
| 292 | $offset = $this->mArgOffsets[$offset]; |
| 293 | } |
| 294 | |
| 295 | return array_slice( $this->mArgs, $offset ); |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * Get the name of an argument at the given index. |
| 300 | * |
| 301 | * @param int $argIndex The integer value (from zero) for the arg |
| 302 | * |
| 303 | * @return ?string the name of the argument, or null if no name is defined for that argument |
| 304 | */ |
| 305 | public function getArgName( int $argIndex ): ?string { |
| 306 | return $this->mArgDefs[ $argIndex ]['name'] ?? null; |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Programmatically set the value of the given option. |
| 311 | * Useful for setting up child scripts, see runChild(). |
| 312 | * |
| 313 | * @param string $name |
| 314 | * @param mixed|null $value |
| 315 | */ |
| 316 | public function setOption( string $name, $value ): void { |
| 317 | $this->mOptions[$name] = $value; |
| 318 | } |
| 319 | |
| 320 | /** |
| 321 | * Programmatically set the value of the given argument. |
| 322 | * Useful for setting up child scripts, see runChild(). |
| 323 | * |
| 324 | * @param string|int $argId |
| 325 | * @param string $value |
| 326 | */ |
| 327 | public function setArg( $argId, $value ): void { |
| 328 | // arg lookup by name |
| 329 | if ( is_string( $argId ) && isset( $this->mArgOffsets[$argId] ) ) { |
| 330 | $argId = $this->mArgOffsets[$argId]; |
| 331 | } |
| 332 | $this->mArgs[$argId] = $value; |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * Clear all parameter values. |
| 337 | * Note that all parameter definitions remain intact. |
| 338 | */ |
| 339 | public function clear() { |
| 340 | $this->mOptions = []; |
| 341 | $this->mArgs = []; |
| 342 | $this->optionsSequence = []; |
| 343 | $this->errors = []; |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Merge options declarations from $other into this instance. |
| 348 | * |
| 349 | * @param MaintenanceParameters $other |
| 350 | */ |
| 351 | public function mergeOptions( MaintenanceParameters $other ) { |
| 352 | $this->mOptDefs = $other->mOptDefs + $this->mOptDefs; |
| 353 | $this->mShortOptionMap = $other->mShortOptionMap + $this->mShortOptionMap; |
| 354 | |
| 355 | $this->mOptionGroups = array_merge_recursive( $this->mOptionGroups, $other->mOptionGroups ); |
| 356 | |
| 357 | $this->clear(); |
| 358 | } |
| 359 | |
| 360 | /** |
| 361 | * Load params and arguments from a given array |
| 362 | * of command-line arguments |
| 363 | * |
| 364 | * @param array $argv The argument array. |
| 365 | * @param int $skip Skip that many elements at the beginning of $argv. |
| 366 | */ |
| 367 | public function loadWithArgv( array $argv, int $skip = 0 ) { |
| 368 | $this->clear(); |
| 369 | |
| 370 | $options = []; |
| 371 | $args = []; |
| 372 | $this->optionsSequence = []; |
| 373 | |
| 374 | // Ignore a number of arguments at the beginning of the array. |
| 375 | // Typically used to ignore the script name at index 0. |
| 376 | $argv = array_slice( $argv, $skip ); |
| 377 | |
| 378 | # Parse arguments |
| 379 | for ( $arg = reset( $argv ); $arg !== false; $arg = next( $argv ) ) { |
| 380 | if ( $arg == '--' ) { |
| 381 | # End of options, remainder should be considered arguments |
| 382 | $arg = next( $argv ); |
| 383 | while ( $arg !== false ) { |
| 384 | $args[] = $arg; |
| 385 | $arg = next( $argv ); |
| 386 | } |
| 387 | break; |
| 388 | } elseif ( substr( $arg, 0, 2 ) == '--' ) { |
| 389 | # Long options |
| 390 | $option = substr( $arg, 2 ); |
| 391 | if ( isset( $this->mOptDefs[$option] ) && $this->mOptDefs[$option]['withArg'] ) { |
| 392 | $param = next( $argv ); |
| 393 | if ( $param === false ) { |
| 394 | $this->error( "Option --$option needs a value after it!" ); |
| 395 | } |
| 396 | |
| 397 | $this->setOptionValue( $options, $option, $param ); |
| 398 | } else { |
| 399 | $bits = explode( '=', $option, 2 ); |
| 400 | $this->setOptionValue( $options, $bits[0], $bits[1] ?? 1 ); |
| 401 | } |
| 402 | } elseif ( $arg == '-' ) { |
| 403 | # Lonely "-", often used to indicate stdin or stdout. |
| 404 | $args[] = $arg; |
| 405 | } elseif ( substr( $arg, 0, 1 ) == '-' ) { |
| 406 | # Short options |
| 407 | $argLength = strlen( $arg ); |
| 408 | for ( $p = 1; $p < $argLength; $p++ ) { |
| 409 | $option = $arg[$p]; |
| 410 | if ( !isset( $this->mOptDefs[$option] ) && isset( $this->mShortOptionMap[$option] ) ) { |
| 411 | $option = $this->mShortOptionMap[$option]; |
| 412 | } |
| 413 | |
| 414 | if ( isset( $this->mOptDefs[$option]['withArg'] ) && $this->mOptDefs[$option]['withArg'] ) { |
| 415 | $param = next( $argv ); |
| 416 | if ( $param === false ) { |
| 417 | $this->error( "Option --$option needs a value after it!" ); |
| 418 | } |
| 419 | $this->setOptionValue( $options, $option, $param ); |
| 420 | } else { |
| 421 | $this->setOptionValue( $options, $option, 1 ); |
| 422 | } |
| 423 | } |
| 424 | } else { |
| 425 | $args[] = $arg; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | $this->mOptions = $options; |
| 430 | $this->mArgs = $args; |
| 431 | } |
| 432 | |
| 433 | /** |
| 434 | * Helper function used solely by loadWithArgv |
| 435 | * to prevent code duplication |
| 436 | * |
| 437 | * This sets the param in the options array based on |
| 438 | * whether or not it can be specified multiple times. |
| 439 | * |
| 440 | * @param array &$options |
| 441 | * @param string $option |
| 442 | * @param mixed $value |
| 443 | */ |
| 444 | private function setOptionValue( array &$options, string $option, $value ) { |
| 445 | $this->optionsSequence[] = [ $option, $value ]; |
| 446 | |
| 447 | if ( isset( $this->mOptDefs[$option] ) ) { |
| 448 | $multi = $this->mOptDefs[$option]['multiOccurrence']; |
| 449 | } else { |
| 450 | $multi = false; |
| 451 | } |
| 452 | $exists = array_key_exists( $option, $options ); |
| 453 | if ( $multi && $exists ) { |
| 454 | $options[$option][] = $value; |
| 455 | } elseif ( $multi ) { |
| 456 | $options[$option] = [ $value ]; |
| 457 | } elseif ( !$exists ) { |
| 458 | $options[$option] = $value; |
| 459 | } else { |
| 460 | $this->error( "Option --$option given twice" ); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | private function error( string $msg ) { |
| 465 | $this->errors[] = $msg; |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * Get any errors encountered while processing parameters. |
| 470 | * |
| 471 | * @return string[] |
| 472 | */ |
| 473 | public function getErrors(): array { |
| 474 | return $this->errors; |
| 475 | } |
| 476 | |
| 477 | /** |
| 478 | * Whether any errors have been recorded so far. |
| 479 | * |
| 480 | * @return bool |
| 481 | */ |
| 482 | public function hasErrors(): bool { |
| 483 | return (bool)$this->errors; |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Set the script name, for use in the help message |
| 488 | * |
| 489 | * @param string $name |
| 490 | */ |
| 491 | public function setName( string $name ) { |
| 492 | $this->mName = $name; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Get the script name, as shown in the help message |
| 497 | * |
| 498 | * @return string |
| 499 | */ |
| 500 | public function getName(): string { |
| 501 | return $this->mName; |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * Force option and argument values. |
| 506 | * |
| 507 | * @internal |
| 508 | * |
| 509 | * @param array $opts |
| 510 | * @param array $args |
| 511 | */ |
| 512 | public function setOptionsAndArgs( array $opts, array $args ) { |
| 513 | $this->mOptions = $opts; |
| 514 | $this->mArgs = $args; |
| 515 | |
| 516 | $this->optionsSequence = []; |
| 517 | foreach ( $opts as $name => $value ) { |
| 518 | $array = (array)$value; |
| 519 | |
| 520 | foreach ( $array as $v ) { |
| 521 | $this->optionsSequence[] = [ $name, $v ]; |
| 522 | } |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | /** |
| 527 | * Run some validation checks on the params, etc. |
| 528 | * |
| 529 | * Error details can be obtained via getErrors(). |
| 530 | * |
| 531 | * @return bool |
| 532 | */ |
| 533 | public function validate() { |
| 534 | $valid = true; |
| 535 | # Check to make sure we've got all the required options |
| 536 | foreach ( $this->mOptDefs as $opt => $info ) { |
| 537 | if ( $info['require'] && !$this->hasOption( $opt ) ) { |
| 538 | $this->error( "Option --$opt is required!" ); |
| 539 | $valid = false; |
| 540 | } |
| 541 | } |
| 542 | # Check arg list too |
| 543 | foreach ( $this->mArgDefs as $k => $info ) { |
| 544 | if ( $info['require'] && !$this->hasArg( $k ) ) { |
| 545 | $this->error( 'Argument <' . $info['name'] . '> is required!' ); |
| 546 | $valid = false; |
| 547 | } |
| 548 | } |
| 549 | if ( !$this->mAllowUnregisteredOptions ) { |
| 550 | # Check for unexpected options |
| 551 | foreach ( $this->mOptions as $opt => $val ) { |
| 552 | if ( !$this->supportsOption( $opt ) ) { |
| 553 | $this->error( "Unexpected option --$opt!" ); |
| 554 | $valid = false; |
| 555 | } |
| 556 | } |
| 557 | } |
| 558 | |
| 559 | return $valid; |
| 560 | } |
| 561 | |
| 562 | /** |
| 563 | * Get help text. |
| 564 | * |
| 565 | * @return string |
| 566 | */ |
| 567 | public function getHelp(): string { |
| 568 | $screenWidth = 80; // TODO: Calculate this! |
| 569 | $tab = " "; |
| 570 | $descWidth = $screenWidth - ( 2 * strlen( $tab ) ); |
| 571 | |
| 572 | ksort( $this->mOptDefs ); |
| 573 | |
| 574 | $output = []; |
| 575 | |
| 576 | // Description ... |
| 577 | if ( $this->mDescription ) { |
| 578 | $output[] = "\n" . wordwrap( $this->mDescription, $screenWidth ) . "\n"; |
| 579 | } |
| 580 | $output[] = "\nUsage: {$this->usagePrefix} " . basename( $this->mName ); |
| 581 | |
| 582 | // ... append options ... |
| 583 | if ( $this->mOptDefs ) { |
| 584 | $output[] = ' [OPTION]...'; |
| 585 | |
| 586 | foreach ( $this->mOptDefs as $name => $opt ) { |
| 587 | if ( $opt['require'] ) { |
| 588 | $output[] = " --$name"; |
| 589 | |
| 590 | if ( $opt['withArg'] ) { |
| 591 | $vname = strtoupper( $name ); |
| 592 | $output[] = " <$vname>"; |
| 593 | } |
| 594 | } |
| 595 | } |
| 596 | } |
| 597 | |
| 598 | // ... and append arguments. |
| 599 | if ( $this->mArgDefs ) { |
| 600 | $args = ''; |
| 601 | foreach ( $this->mArgDefs as $arg ) { |
| 602 | $argRepr = $this->getArgRepresentation( $arg ); |
| 603 | |
| 604 | $args .= ' '; |
| 605 | $args .= $argRepr; |
| 606 | } |
| 607 | $output[] = $args; |
| 608 | } |
| 609 | $output[] = "\n\n"; |
| 610 | |
| 611 | // Go through the declared groups and output the options for each group separately. |
| 612 | // Maintain the remaining options in $params. |
| 613 | $params = $this->mOptDefs; |
| 614 | foreach ( $this->mOptionGroups as $groupName => $groupOptions ) { |
| 615 | $output[] = $this->formatHelpItems( |
| 616 | array_intersect_key( $params, array_flip( $groupOptions ) ), |
| 617 | $groupName, |
| 618 | $descWidth, $tab |
| 619 | ); |
| 620 | $params = array_diff_key( $params, array_flip( $groupOptions ) ); |
| 621 | } |
| 622 | |
| 623 | $output[] = $this->formatHelpItems( |
| 624 | $params, |
| 625 | 'Script specific options', |
| 626 | $descWidth, $tab |
| 627 | ); |
| 628 | |
| 629 | // Print arguments |
| 630 | if ( count( $this->mArgDefs ) > 0 ) { |
| 631 | $output[] = "Arguments:\n"; |
| 632 | // Arguments description |
| 633 | foreach ( $this->mArgDefs as $info ) { |
| 634 | $argRepr = $this->getArgRepresentation( $info ); |
| 635 | $output[] = |
| 636 | wordwrap( |
| 637 | "$tab$argRepr: " . $info['desc'], |
| 638 | $descWidth, |
| 639 | "\n$tab$tab" |
| 640 | ) . "\n"; |
| 641 | } |
| 642 | $output[] = "\n"; |
| 643 | } |
| 644 | |
| 645 | return implode( '', $output ); |
| 646 | } |
| 647 | |
| 648 | private function formatHelpItems( array $items, $heading, $descWidth, $tab ) { |
| 649 | if ( $items === [] ) { |
| 650 | return ''; |
| 651 | } |
| 652 | |
| 653 | $output = []; |
| 654 | |
| 655 | $output[] = "$heading:\n"; |
| 656 | |
| 657 | foreach ( $items as $name => $info ) { |
| 658 | if ( $info['shortName'] !== false ) { |
| 659 | $name .= ' (-' . $info['shortName'] . ')'; |
| 660 | } |
| 661 | if ( $info['withArg'] ) { |
| 662 | $vname = strtoupper( $name ); |
| 663 | $name .= " <$vname>"; |
| 664 | } |
| 665 | |
| 666 | $output[] = |
| 667 | wordwrap( |
| 668 | "$tab--$name: " . strtr( $info['desc'], [ "\n" => "\n$tab$tab" ] ), |
| 669 | $descWidth, |
| 670 | "\n$tab$tab" |
| 671 | ) . "\n"; |
| 672 | } |
| 673 | |
| 674 | $output[] = "\n"; |
| 675 | |
| 676 | return implode( '', $output ); |
| 677 | } |
| 678 | |
| 679 | /** |
| 680 | * Returns the names of defined options |
| 681 | * @return string[] |
| 682 | */ |
| 683 | public function getOptionNames(): array { |
| 684 | return array_keys( $this->mOptDefs ); |
| 685 | } |
| 686 | |
| 687 | /** |
| 688 | * Returns any option values |
| 689 | * @return array |
| 690 | */ |
| 691 | public function getOptions(): array { |
| 692 | return $this->mOptions; |
| 693 | } |
| 694 | |
| 695 | /** |
| 696 | * Returns option values as an ordered sequence. |
| 697 | * Useful for option chaining (Ex. dumpBackup.php). |
| 698 | * @return array[] a list of pairs of like [ $option, $value ] |
| 699 | */ |
| 700 | public function getOptionsSequence(): array { |
| 701 | return $this->optionsSequence; |
| 702 | } |
| 703 | |
| 704 | /** |
| 705 | * @param string $usagePrefix |
| 706 | */ |
| 707 | public function setUsagePrefix( string $usagePrefix ) { |
| 708 | $this->usagePrefix = $usagePrefix; |
| 709 | } |
| 710 | |
| 711 | /** |
| 712 | * @param array $argInfo |
| 713 | * |
| 714 | * @return string |
| 715 | */ |
| 716 | private function getArgRepresentation( array $argInfo ): string { |
| 717 | if ( $argInfo['require'] ) { |
| 718 | $rep = '<' . $argInfo['name'] . '>'; |
| 719 | } else { |
| 720 | $rep = '[' . $argInfo['name'] . ']'; |
| 721 | } |
| 722 | |
| 723 | if ( $argInfo['multi'] ) { |
| 724 | $rep .= '...'; |
| 725 | } |
| 726 | |
| 727 | return $rep; |
| 728 | } |
| 729 | |
| 730 | } |