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Help.php
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<?php
/**
* Print the Help information.
*
* ---------------------------------------------------------------------------------------------
* This class is intended for internal use only and is not part of the public API.
* This also means that it has no promise of backward compatibility. Use at your own risk.
* ---------------------------------------------------------------------------------------------
*
* @internal
*
* @author Juliette Reinders Folmer <phpcs_nospam@adviesenzo.nl>
* @copyright 2024 Juliette Reinders Folmer. All rights reserved.
* @license https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
*/
namespace PHP_CodeSniffer\Util;
use InvalidArgumentException;
use PHP_CodeSniffer\Config;
use PHP_CodeSniffer\Util\Common;
final class Help
{
/**
* Short options which are available for both the `phpcs` as well as the `phpcbf` command.
*
* @var string
*/
const DEFAULT_SHORT_OPTIONS = '-hilnpqvw';
/**
* Long options which are available for both the `phpcs` as well as the `phpcbf` command.
*
* {@internal This should be a constant array, but those aren't supported until PHP 5.6.}
*
* @var string Comma-separated list of the option names.
*/
const DEFAULT_LONG_OPTIONS = 'basepath,bootstrap,colors,encoding,error-severity,exclude,extensions,file,file-list,filter,ignore,ignore-annotations,no-colors,parallel,php-ini,report-width,runtime-set,severity,sniffs,standard,stdin-path,tab-width,version,vv,vvv,warning-severity';
/**
* Minimum screen width.
*
* The help info needs room to display, so this is the minimum acceptable width.
*
* @var integer
*/
const MIN_WIDTH = 60;
/**
* Indent option lines.
*
* @var string
*/
const INDENT = ' ';
/**
* Gutter spacing for between the option argument info and the option description.
*
* @var string
*/
const GUTTER = ' ';
/**
* The current PHPCS Configuration.
*
* @var \PHP_CodeSniffer\Config
*/
private $config;
/**
* The options which should be shown for this help screen.
*
* @var array<string>
*/
private $requestedOptions = [];
/**
* Active options per category (after filtering).
*
* @var array<string, array<string, array<string, string>>>
*/
private $activeOptions = [];
/**
* Width of the indent for option lines.
*
* @var integer
*/
private $indentWidth = 0;
/**
* Width of the gutter spacing.
*
* @var integer
*/
private $gutterWidth = 0;
/**
* Width of longest option argument info entry.
*
* @var integer
*/
private $maxOptionNameLength = 0;
/**
* Constructor.
*
* @param \PHP_CodeSniffer\Config $config Configuration object.
* @param array<string> $longOptions The long options which should be shown.
* @param string $shortOptions The short options which should be shown.
*
* @throws \InvalidArgumentException When $shortOptions is not a string.
*/
public function __construct(Config $config, array $longOptions, $shortOptions='')
{
if (is_string($shortOptions) === false) {
throw new InvalidArgumentException('The $shortOptions parameter must be a string');
}
$this->config = $config;
$this->requestedOptions = array_merge($longOptions, str_split($shortOptions));
$this->filterOptions();
$this->indentWidth = strlen(self::INDENT);
$this->gutterWidth = strlen(self::GUTTER);
$this->setMaxOptionNameLength();
}//end __construct()
/**
* Display the help info.
*
* @return void
*/
public function display()
{
$this->printUsage();
$this->printCategories();
}//end display()
/**
* Filter the available options based on the requested options.
*
* @return void
*/
private function filterOptions()
{
$filteredOptions = $this->getAllOptions();
foreach ($filteredOptions as $category => $options) {
// Initial state set to "true" to prevent a spacer at the start of an array.
$lastWasSpacer = true;
$spacerCount = 0;
foreach ($options as $name => $option) {
if ($lastWasSpacer !== true && strpos($name, 'blank-line') === 0) {
++$spacerCount;
$lastWasSpacer = true;
continue;
}
if (in_array($name, $this->requestedOptions, true) === false) {
unset($filteredOptions[$category][$name]);
continue;
}
$lastWasSpacer = false;
}
// Make sure the final array doesn't contain a spacer at the end.
if (empty($filteredOptions[$category]) === false) {
end($filteredOptions[$category]);
$key = key($filteredOptions[$category]);
if (strpos($key, 'blank-line') === 0) {
unset($filteredOptions[$category][$key]);
--$spacerCount;
}
}
// Remove categories now left empty.
if (empty($filteredOptions[$category]) === true || count($filteredOptions[$category]) === $spacerCount) {
unset($filteredOptions[$category]);
}
}//end foreach
$this->activeOptions = $filteredOptions;
}//end filterOptions()
/**
* Determine the length of the longest option argument and store it.
*
* @return void
*/
private function setMaxOptionNameLength()
{
$lengths = [];
foreach ($this->activeOptions as $category => $options) {
foreach ($options as $option) {
if (isset($option['argument']) === false) {
continue;
}
$lengths[] = strlen($option['argument']);
}
}
if (empty($lengths) === false) {
$this->maxOptionNameLength = max($lengths);
}
}//end setMaxOptionNameLength()
/**
* Get the maximum width which can be used to display the help info.
*
* Independently of user preference/auto-determined width of the current screen,
* a minimum width is needed to display information, so don't allow this to get too low.
*
* @return int
*/
private function getMaxWidth()
{
return max(self::MIN_WIDTH, $this->config->reportWidth);
}//end getMaxWidth()
/**
* Get the maximum width for the text in the option description column.
*
* @return int
*/
private function getDescriptionColumnWidth()
{
return ($this->getMaxWidth() - $this->maxOptionNameLength - $this->indentWidth - $this->gutterWidth);
}//end getDescriptionColumnWidth()
/**
* Get the length of the indentation needed for follow up lines when the description does not fit on one line.
*
* @return int
*/
private function getDescriptionFollowupLineIndentLength()
{
return ($this->maxOptionNameLength + $this->indentWidth + $this->gutterWidth);
}//end getDescriptionFollowupLineIndentLength()
/**
* Print basic usage information to the screen.
*
* @return void
*/
private function printUsage()
{
$command = 'phpcs';
if (defined('PHP_CODESNIFFER_CBF') === true && PHP_CODESNIFFER_CBF === true) {
// @codeCoverageIgnore
$command = 'phpcbf';
}
$this->printCategoryHeader('Usage');
echo self::INDENT.$command.' [options] <file|directory>'.PHP_EOL;
}//end printUsage()
/**
* Print details of all the requested options to the screen, sorted by category.
*
* @return void
*/
private function printCategories()
{
foreach ($this->activeOptions as $category => $options) {
$this->printCategoryHeader($category);
$this->printCategoryOptions($options);
}
}//end printCategories()
/**
* Print a category header.
*
* @param string $header The header text.
*
* @return void
*/
private function printCategoryHeader($header)
{
$header .= ':';
if ($this->config->colors === true) {
$header = "\033[33m{$header}\033[0m";
}
echo PHP_EOL.$header.PHP_EOL;
}//end printCategoryHeader()
/**
* Print the options for a category.
*
* @param array<string, array<string, string>> $options The options to display.
*
* @return void
*/
private function printCategoryOptions(array $options)
{
$maxDescriptionWidth = $this->getDescriptionColumnWidth();
$maxTextWidth = ($this->getMaxWidth() - $this->indentWidth);
$secondLineIndent = str_repeat(' ', $this->getDescriptionFollowupLineIndentLength());
$output = '';
foreach ($options as $option) {
if (isset($option['spacer']) === true) {
$output .= PHP_EOL;
}
if (isset($option['text']) === true) {
$text = wordwrap($option['text'], $maxTextWidth, "\n");
$output .= self::INDENT.implode(PHP_EOL.self::INDENT, explode("\n", $text)).PHP_EOL;
}
if (isset($option['argument'], $option['description']) === true) {
$argument = str_pad($option['argument'], $this->maxOptionNameLength);
$argument = $this->colorizeVariableInput($argument);
$output .= self::INDENT."\033[32m{$argument}\033[0m";
$output .= self::GUTTER;
$description = wordwrap($option['description'], $maxDescriptionWidth, "\n");
$output .= implode(PHP_EOL.$secondLineIndent, explode("\n", $description)).PHP_EOL;
}
}
if ($this->config->colors === false) {
$output = Common::stripColors($output);
}
echo $output;
}//end printCategoryOptions()
/**
* Colorize "variable" input in the option argument info.
*
* For the purposes of this method, "variable" input is text between <> brackets.
* The regex allows for multiple tags and nested tags.
*
* @param string $text The text to process.
*
* @return string
*/
private function colorizeVariableInput($text)
{
return preg_replace('`(<(?:(?>[^<>]+)|(?R))*>)`', "\033[36m".'$1'."\033[32m", $text);
}//end colorizeVariableInput()
/**
* Retrieve the help details for all supported CLI arguments per category.
*
* @return array<string, array<string, array<string, string>>>
*/
private function getAllOptions()
{
$options = [];
// phpcs:disable Squiz.Strings.ConcatenationSpacing.PaddingFound -- Readability is more important.
$options['Scan targets'] = [
'file' => [
'argument' => '<file|directory>',
'description' => 'One or more files and/or directories to check, space separated.',
],
'-' => [
'argument' => '-',
'description' => 'Check STDIN instead of local files and directories.',
],
'stdin-path' => [
'argument' => '--stdin-path=<stdinPath>',
'description' => 'If processing STDIN, the file path that STDIN will be processed as.',
],
'file-list' => [
'argument' => '--file-list=<fileList>',
'description' => 'Check the files and/or directories which are defined in the file to which the path is provided (one per line).',
],
'filter' => [
'argument' => '--filter=<filter>',
'description' => 'Check based on a predefined file filter. Use either the "GitModified" or "GitStaged" filter, or specify the path to a custom filter class.',
],
'ignore' => [
'argument' => '--ignore=<patterns>',
'description' => 'Ignore files based on a comma-separated list of patterns matching files and/or directories.',
],
'extensions' => [
'argument' => '--extensions=<extensions>',
'description' => 'Check files with the specified file extensions (comma-separated list). Defaults to php,inc/php,js,css.'."\n"
.'The type of the file can be specified using: ext/type; e.g. module/php,es/js.',
],
'l' => [
'argument' => '-l',
'description' => 'Check local directory only, no recursion.',
],
];
$options['Rule Selection Options'] = [
'standard' => [
'argument' => '--standard=<standard>',
'description' => 'The name of, or the path to, the coding standard to use. Can be a comma-separated list specifying multiple standards. If no standard is specified, PHP_CodeSniffer will look for a [.]phpcs.xml[.dist] custom ruleset file in the current directory and those above it.',
],
'sniffs' => [
'argument' => '--sniffs=<sniffs>',
'description' => 'A comma-separated list of sniff codes to limit the scan to. All sniffs must be part of the standard in use.',
],
'exclude' => [
'argument' => '--exclude=<sniffs>',
'description' => 'A comma-separated list of sniff codes to exclude from the scan. All sniffs must be part of the standard in use.',
],
'blank-line' => ['spacer' => ''],
'i' => [
'argument' => '-i',
'description' => 'Show a list of installed coding standards.',
],
'e' => [
'argument' => '-e',
'description' => 'Explain a standard by showing the names of all the sniffs it includes.',
],
'generator' => [
'argument' => '--generator=<generator>',
'description' => 'Show documentation for a standard. Use either the "HTML", "Markdown" or "Text" generator.',
],
];
$options['Run Options'] = [
'a' => [
'argument' => '-a',
'description' => 'Run in interactive mode, pausing after each file.',
],
'bootstrap' => [
'argument' => '--bootstrap=<bootstrap>',
'description' => 'Run the specified file(s) before processing begins. A list of files can be provided, separated by commas.',
],
'cache' => [
'argument' => '--cache[=<cacheFile>]',
'description' => 'Cache results between runs. Optionally, <cacheFile> can be provided to use a specific file for caching. Otherwise, a temporary file is used.',
],
'no-cache' => [
'argument' => '--no-cache',
'description' => 'Do not cache results between runs (default).',
],
'parallel' => [
'argument' => '--parallel=<processes>',
'description' => 'The number of files to be checked simultaneously. Defaults to 1 (no parallel processing).'."\n"
.'If enabled, this option only takes effect if the PHP PCNTL (Process Control) extension is available.',
],
'suffix' => [
'argument' => '--suffix=<suffix>',
'description' => 'Write modified files to a filename using this suffix ("diff" and "patch" are not used in this mode).',
],
'blank-line' => ['spacer' => ''],
'php-ini' => [
'argument' => '-d <key[=value]>',
'description' => 'Set the [key] php.ini value to [value] or set to [true] if value is omitted.'."\n"
.'Note: only php.ini settings which can be changed at runtime are supported.',
],
];
$options['Reporting Options'] = [
'report' => [
'argument' => '--report=<report>',
'description' => 'Print either the "full", "xml", "checkstyle", "csv", "json", "junit", "emacs", "source", "summary", "diff", "svnblame", "gitblame", "hgblame", "notifysend" or "performance" report or specify the path to a custom report class. By default, the "full" report is displayed.',
],
'report-file' => [
'argument' => '--report-file=<reportFile>',
'description' => 'Write the report to the specified file path.',
],
'report-report' => [
'argument' => '--report-<report>=<reportFile>',
'description' => 'Write the report specified in <report> to the specified file path.',
],
'report-width' => [
'argument' => '--report-width=<reportWidth>',
'description' => 'How many columns wide screen reports should be. Set to "auto" to use current screen width, where supported.',
],
'basepath' => [
'argument' => '--basepath=<basepath>',
'description' => 'Strip a path from the front of file paths inside reports.',
],
'blank-line-1' => ['spacer' => ''],
'w' => [
'argument' => '-w',
'description' => 'Include both warnings and errors (default).',
],
'n' => [
'argument' => '-n',
'description' => 'Do not include warnings. Shortcut for "--warning-severity=0".',
],
'severity' => [
'argument' => '--severity=<severity>',
'description' => 'The minimum severity required to display an error or warning. Defaults to 5.',
],
'error-severity' => [
'argument' => '--error-severity=<severity>',
'description' => 'The minimum severity required to display an error. Defaults to 5.',
],
'warning-severity' => [
'argument' => '--warning-severity=<severity>',
'description' => 'The minimum severity required to display a warning. Defaults to 5.',
],
'blank-line-2' => ['spacer' => ''],
's' => [
'argument' => '-s',
'description' => 'Show sniff error codes in all reports.',
],
'ignore-annotations' => [
'argument' => '--ignore-annotations',
'description' => 'Ignore all "phpcs:..." annotations in code comments.',
],
'colors' => [
'argument' => '--colors',
'description' => 'Use colors in screen output.',
],
'no-colors' => [
'argument' => '--no-colors',
'description' => 'Do not use colors in screen output (default).',
],
'p' => [
'argument' => '-p',
'description' => 'Show progress of the run.',
],
'q' => [
'argument' => '-q',
'description' => 'Quiet mode; disables progress and verbose output.',
],
'm' => [
'argument' => '-m',
'description' => 'Stop error messages from being recorded. This saves a lot of memory but stops many reports from being used.',
],
];
$options['Configuration Options'] = [
'encoding' => [
'argument' => '--encoding=<encoding>',
'description' => 'The encoding of the files being checked. Defaults to "utf-8".',
],
'tab-width' => [
'argument' => '--tab-width=<tabWidth>',
'description' => 'The number of spaces each tab represents.',
],
'blank-line' => ['spacer' => ''],
'config-explain' => [
'text' => 'Default values for a selection of options can be stored in a user-specific CodeSniffer.conf configuration file.'."\n"
.'This applies to the following options: "default_standard", "report_format", "tab_width", "encoding", "severity", "error_severity", "warning_severity", "show_warnings", "report_width", "show_progress", "quiet", "colors", "cache", "parallel".',
],
'config-show' => [
'argument' => '--config-show',
'description' => 'Show the configuration options which are currently stored in the applicable CodeSniffer.conf file.',
],
'config-set' => [
'argument' => '--config-set <key> <value>',
'description' => 'Save a configuration option to the CodeSniffer.conf file.',
],
'config-delete' => [
'argument' => '--config-delete <key>',
'description' => 'Delete a configuration option from the CodeSniffer.conf file.',
],
'runtime-set' => [
'argument' => '--runtime-set <key> <value>',
'description' => 'Set a configuration option to be applied to the current scan run only.',
],
];
$options['Miscellaneous Options'] = [
'h' => [
'argument' => '-h, -?, --help',
'description' => 'Print this help message.',
],
'version' => [
'argument' => '--version',
'description' => 'Print version information.',
],
'v' => [
'argument' => '-v',
'description' => 'Verbose output: Print processed files.',
],
'vv' => [
'argument' => '-vv',
'description' => 'Verbose output: Print ruleset and token output.',
],
'vvv' => [
'argument' => '-vvv',
'description' => 'Verbose output: Print sniff processing information.',
],
];
// phpcs:enable
return $options;
}//end getAllOptions()
}//end class

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Help.php (22 KB)

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