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psalm/src/command_functions.php

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<?php
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namespace Psalm;
use Composer\Autoload\ClassLoader;
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use Phar;
use Psalm\Internal\Composer;
use function basename;
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use function dirname;
use function getenv;
use function pathinfo;
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use function strpos;
use function realpath;
use const DIRECTORY_SEPARATOR;
use function file_exists;
use function in_array;
use const PATHINFO_EXTENSION;
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use const PHP_EOL;
use function fwrite;
use const STDERR;
use function implode;
use function define;
use function json_decode;
use function file_get_contents;
use function is_array;
use function is_string;
use function count;
use function strlen;
use function substr;
use function stream_get_meta_data;
use const STDIN;
use function stream_set_blocking;
use function fgets;
use function preg_split;
use function trim;
use function is_dir;
use function preg_replace;
use function substr_replace;
use function file_put_contents;
use function ini_get;
use function preg_match;
use function strtoupper;
function requireAutoloaders(string $current_dir, bool $has_explicit_root, string $vendor_dir): ?ClassLoader
{
$autoload_roots = [$current_dir];
$psalm_dir = dirname(__DIR__);
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/** @psalm-suppress UndefinedConstant */
$in_phar = Phar::running() || strpos(__NAMESPACE__, 'HumbugBox');
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if ($in_phar) {
require_once(__DIR__ . '/../vendor/autoload.php');
// hack required for JsonMapper
require_once __DIR__ . '/../vendor/netresearch/jsonmapper/src/JsonMapper.php';
require_once __DIR__ . '/../vendor/netresearch/jsonmapper/src/JsonMapper/Exception.php';
}
if (realpath($psalm_dir) !== realpath($current_dir) && !$in_phar) {
$autoload_roots[] = $psalm_dir;
}
$autoload_files = [];
foreach ($autoload_roots as $autoload_root) {
$has_autoloader = false;
$nested_autoload_file = dirname($autoload_root, 2). DIRECTORY_SEPARATOR . 'autoload.php';
// note: don't realpath $nested_autoload_file, or phar version will fail
if (file_exists($nested_autoload_file)) {
if (!in_array($nested_autoload_file, $autoload_files, false)) {
$autoload_files[] = $nested_autoload_file;
}
$has_autoloader = true;
}
$vendor_autoload_file =
$autoload_root . DIRECTORY_SEPARATOR . $vendor_dir . DIRECTORY_SEPARATOR . 'autoload.php';
// note: don't realpath $vendor_autoload_file, or phar version will fail
if (file_exists($vendor_autoload_file)) {
if (!in_array($vendor_autoload_file, $autoload_files, false)) {
$autoload_files[] = $vendor_autoload_file;
}
$has_autoloader = true;
}
$composer_json_file = Composer::getJsonFilePath($autoload_root);
if (!$has_autoloader && file_exists($composer_json_file)) {
$error_message = 'Could not find any composer autoloaders in ' . $autoload_root;
if (!$has_explicit_root) {
$error_message .= PHP_EOL . 'Add a --root=[your/project/directory] flag '
. 'to specify a particular project to run Psalm on.';
}
fwrite(STDERR, $error_message . PHP_EOL);
exit(1);
}
}
$first_autoloader = null;
foreach ($autoload_files as $file) {
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/**
* @psalm-suppress UnresolvableInclude
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*
* @var mixed
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*/
$autoloader = require_once $file;
if (!$first_autoloader
&& $autoloader instanceof ClassLoader
) {
$first_autoloader = $autoloader;
}
}
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if ($first_autoloader === null && !$in_phar) {
if (!$autoload_files) {
fwrite(STDERR, 'Failed to find a valid Composer autoloader' . "\n");
} else {
fwrite(STDERR, 'Failed to find a valid Composer autoloader in ' . implode(', ', $autoload_files) . "\n");
}
fwrite(
STDERR,
'Please make sure youve run `composer install` in the current directory before using Psalm.' . "\n"
);
exit(1);
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}
define('PSALM_VERSION', (string)\PackageVersions\Versions::getVersion('vimeo/psalm'));
define('PHP_PARSER_VERSION', \PackageVersions\Versions::getVersion('nikic/php-parser'));
return $first_autoloader;
}
/**
* @psalm-suppress MixedArrayAccess
* @psalm-suppress MixedAssignment
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* @psalm-suppress PossiblyUndefinedStringArrayOffset
*/
function getVendorDir(string $current_dir): string
{
$composer_json_path = Composer::getJsonFilePath($current_dir);
if (!file_exists($composer_json_path)) {
return 'vendor';
}
if (!$composer_json = json_decode(file_get_contents($composer_json_path), true)) {
fwrite(
STDERR,
'Invalid composer.json at ' . $composer_json_path . "\n"
);
exit(1);
}
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if (isset($composer_json['config'])
&& is_array($composer_json['config'])
&& isset($composer_json['config']['vendor-dir'])
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&& is_string($composer_json['config']['vendor-dir'])
) {
return $composer_json['config']['vendor-dir'];
}
return 'vendor';
}
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/**
* @return string[]
*/
function getArguments() : array
{
global $argv;
if (!$argv) {
return [];
}
$filtered_input_paths = [];
for ($i = 0; $i < count($argv); ++$i) {
$input_path = $argv[$i];
if (realpath($input_path) !== false) {
continue;
}
if ($input_path[0] === '-' && strlen($input_path) === 2) {
if ($input_path[1] === 'c' || $input_path[1] === 'f') {
++$i;
}
continue;
}
if ($input_path[0] === '-' && $input_path[2] === '=') {
continue;
}
$filtered_input_paths[] = $input_path;
}
return $filtered_input_paths;
}
/**
* @param string|array|null|false $f_paths
*
* @return string[]|null
*/
function getPathsToCheck($f_paths): ?array
{
global $argv;
$paths_to_check = [];
if ($f_paths) {
$input_paths = is_array($f_paths) ? $f_paths : [$f_paths];
} else {
$input_paths = $argv ? $argv : null;
}
if ($input_paths) {
$filtered_input_paths = [];
for ($i = 0; $i < count($input_paths); ++$i) {
/** @var string */
$input_path = $input_paths[$i];
if (realpath($input_path) === realpath(dirname(__DIR__) . DIRECTORY_SEPARATOR . 'psalm')
|| realpath($input_path) === realpath(dirname(__DIR__) . DIRECTORY_SEPARATOR . 'psalter')
|| realpath($input_path) === realpath(Phar::running(false))
) {
continue;
}
if ($input_path[0] === '-' && strlen($input_path) === 2) {
if ($input_path[1] === 'c' || $input_path[1] === 'f') {
++$i;
}
continue;
}
if ($input_path[0] === '-' && $input_path[2] === '=') {
continue;
}
if (substr($input_path, 0, 2) === '--' && strlen($input_path) > 2) {
continue;
}
$filtered_input_paths[] = $input_path;
}
if ($filtered_input_paths === ['-']) {
$meta = stream_get_meta_data(STDIN);
stream_set_blocking(STDIN, false);
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if ($stdin = fgets(STDIN)) {
$filtered_input_paths = preg_split('/\s+/', trim($stdin));
}
$blocked = $meta['blocked'];
stream_set_blocking(STDIN, $blocked);
}
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foreach ($filtered_input_paths as $path_to_check) {
if ($path_to_check[0] === '-') {
fwrite(STDERR, 'Invalid usage, expecting psalm [options] [file...]' . PHP_EOL);
exit(1);
}
if (!file_exists($path_to_check)) {
fwrite(STDERR, 'Cannot locate ' . $path_to_check . PHP_EOL);
exit(1);
}
$path_to_check = realpath($path_to_check);
if (!$path_to_check) {
fwrite(STDERR, 'Error getting realpath for file' . PHP_EOL);
exit(1);
}
$paths_to_check[] = $path_to_check;
}
if (!$paths_to_check) {
$paths_to_check = null;
}
}
return $paths_to_check;
}
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/**
* @psalm-pure
*/
function getPsalmHelpText(): string
{
return <<<HELP
Usage:
psalm [options] [file...]
Basic configuration:
-c, --config=psalm.xml
Path to a psalm.xml configuration file. Run psalm --init to create one.
--use-ini-defaults
Use PHP-provided ini defaults for memory and error display
--memory-limit=LIMIT
Use a specific memory limit. Cannot be combined with --use-ini-defaults
--disable-extension=[extension]
Used to disable certain extensions while Psalm is running.
--threads=INT
If greater than one, Psalm will run analysis on multiple threads, speeding things up.
--diff
Runs Psalm in diff mode, only checking files that have changed since last run (and their dependents)
--diff-methods
Only checks methods that have changed since last run (and their dependents)
Surfacing issues:
--show-info[=BOOLEAN]
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Show non-exception parser findings (defaults to false).
--show-snippet[=true]
Show code snippets with errors. Options are 'true' or 'false'
--find-dead-code[=auto]
--find-unused-code[=auto]
Look for unused code. Options are 'auto' or 'always'. If no value is specified, default is 'auto'
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--find-unused-psalm-suppress
Finds all @psalm-suppress annotations that arent used
--find-references-to=[class|method|property]
Searches the codebase for references to the given fully-qualified class or method,
where method is in the format class::methodName
--no-suggestions
Hide suggestions
--taint-analysis
Run Psalm in taint analysis mode see https://psalm.dev/docs/security_analysis for more info
Issue baselines:
--set-baseline=PATH
Save all current error level issues to a file, to mark them as info in subsequent runs
Add --include-php-versions to also include a list of PHP extension versions
--use-baseline=PATH
Allows you to use a baseline other than the default baseline provided in your config
--ignore-baseline
Ignore the error baseline
--update-baseline
Update the baseline by removing fixed issues. This will not add new issues to the baseline
Add --include-php-versions to also include a list of PHP extension versions
Plugins:
--plugin=PATH
Executes a plugin, an alternative to using the Psalm config
Output:
-m, --monochrome
Enable monochrome output
--output-format=console
Changes the output format.
Available formats: compact, console, text, emacs, json, pylint, xml, checkstyle, junit, sonarqube, github,
phpstorm
--no-progress
Disable the progress indicator
--long-progress
Use a progress indicator suitable for Continuous Integration logs
--stats
Shows a breakdown of Psalm's ability to infer types in the codebase
Reports:
--report=PATH
The path where to output report file. The output format is based on the file extension.
(Currently supported formats: ".json", ".xml", ".txt", ".emacs", ".pylint", ".console",
"checkstyle.xml", "sonarqube.json", "summary.json", "junit.xml")
--report-show-info[=BOOLEAN]
Whether the report should include non-errors in its output (defaults to true)
Caching:
--clear-cache
Clears all cache files that Psalm uses for this specific project
--clear-global-cache
Clears all cache files that Psalm uses for all projects
--no-cache
Runs Psalm without using cache
--no-reflection-cache
Runs Psalm without using cached representations of unchanged classes and files.
Useful if you want the afterClassLikeVisit plugin hook to run every time you visit a file.
--no-file-cache
Runs Psalm without using caching every single file for later diffing.
This reduces the space Psalm uses on disk and file I/O.
Miscellaneous:
-h, --help
Display this help message
-v, --version
Display the Psalm version
-i, --init [source_dir=src] [level=3]
Create a psalm config file in the current directory that points to [source_dir]
at the required level, from 1, most strict, to 8, most permissive.
--debug
Debug information
--debug-by-line
Debug information on a line-by-line level
--debug-emitted-issues
Print a php backtrace to stderr when emitting issues.
-r, --root
If running Psalm globally you'll need to specify a project root. Defaults to cwd
--generate-json-map=PATH
Generate a map of node references and types in JSON format, saved to the given path.
--generate-stubs=PATH
Generate stubs for the project and dump the file in the given path
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--shepherd[=host]
Send data to Shepherd, Psalm's GitHub integration tool.
--alter
Run Psalter
--language-server
Run Psalm Language Server
HELP;
}
function initialiseConfig(
?string $path_to_config,
string $current_dir,
string $output_format,
?ClassLoader $first_autoloader
): Config {
try {
if ($path_to_config) {
$config = Config::loadFromXMLFile($path_to_config, $current_dir);
} else {
$config = Config::getConfigForPath($current_dir, $current_dir, $output_format);
}
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} catch (\Psalm\Exception\ConfigException $e) {
fwrite(STDERR, $e->getMessage() . PHP_EOL);
exit(1);
}
$config->setComposerClassLoader($first_autoloader);
return $config;
}
function update_config_file(Config $config, string $config_file_path, string $baseline_path) : void
{
if ($config->error_baseline === $baseline_path) {
return;
}
$configFile = $config_file_path;
if (is_dir($config_file_path)) {
$configFile = Config::locateConfigFile($config_file_path);
}
if (!$configFile) {
fwrite(STDERR, "Don't forget to set errorBaseline=\"{$baseline_path}\" to your config.");
return;
}
$configFileContents = file_get_contents($configFile);
if ($config->error_baseline) {
$amendedConfigFileContents = preg_replace(
'/errorBaseline=".*?"/',
"errorBaseline=\"{$baseline_path}\"",
$configFileContents
);
} else {
$endPsalmOpenTag = strpos($configFileContents, '>', (int)strpos($configFileContents, '<psalm'));
if (!$endPsalmOpenTag) {
fwrite(STDERR, " Don't forget to set errorBaseline=\"{$baseline_path}\" in your config.");
return;
}
if ($configFileContents[$endPsalmOpenTag - 1] === "\n") {
$amendedConfigFileContents = substr_replace(
$configFileContents,
" errorBaseline=\"{$baseline_path}\"\n>",
$endPsalmOpenTag,
1
);
} else {
$amendedConfigFileContents = substr_replace(
$configFileContents,
" errorBaseline=\"{$baseline_path}\">",
$endPsalmOpenTag,
1
);
}
}
file_put_contents($configFile, $amendedConfigFileContents);
}
function get_path_to_config(array $options): ?string
{
$path_to_config = isset($options['c']) && is_string($options['c']) ? realpath($options['c']) : null;
if ($path_to_config === false) {
fwrite(STDERR, 'Could not resolve path to config ' . (string) ($options['c'] ?? '') . PHP_EOL);
exit(1);
}
return $path_to_config;
}
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/**
* @psalm-pure
*/
function getMemoryLimitInBytes(): int
{
$limit = ini_get('memory_limit');
// for unlimited = -1
if ($limit < 0) {
return -1;
}
if (preg_match('/^(\d+)(\D?)$/', $limit, $matches)) {
$limit = (int)$matches[1];
switch (strtoupper($matches[2] ?? '')) {
case 'G':
$limit *= 1024 * 1024 * 1024;
break;
case 'M':
$limit *= 1024 * 1024;
break;
case 'K':
$limit *= 1024;
break;
}
}
return (int)$limit;
}