Add --version cli option (#172)

README.md

@@ -79,6 +79,7 @@ This tool reads your `composer.json` and scans all paths listed in `autoload` &
 - `--composer-json path/to/composer.json` for custom path to composer.json
 - `--dump-usages symfony/console` to show usages of certain package(s), `*` placeholder is supported
 - `--config path/to/config.php` for custom path to config file
+- `--version` display version
 - `--help` display usage & cli options
 - `--verbose` to see more example classes & usages
 - `--show-all-usages` to see all usages

bin/composer-dependency-analyser

@@ -2,6 +2,7 @@
 <?php declare(strict_types=1);
 
 use ShipMonk\ComposerDependencyAnalyser\Analyser;
+use ShipMonk\ComposerDependencyAnalyser\Exception\AbortException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidCliException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidConfigException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidPathException;
@@ -52,6 +53,9 @@ try {
 ) {
     $stdErrPrinter->printLine("\n<red>{$e->getMessage()}</red>" . PHP_EOL);
     exit(255);
+
+} catch (AbortException $e) {
+    exit(0);
 }
 
 exit($exitCode);

src/Cli.php

@@ -13,6 +13,7 @@ class Cli
 {
 
     private const OPTIONS = [
+        'version' => false,
         'help' => false,
         'verbose' => false,
         'ignore-shadow-deps' => false,
@@ -126,6 +127,10 @@ public function getProvidedOptions(): CliOptions
     {
         $options = new CliOptions();
 
+        if (isset($this->providedOptions['version'])) {
+            $options->version = true;
+        }
+
         if (isset($this->providedOptions['help'])) {
             $options->help = true;
         }

src/CliOptions.php

@@ -5,6 +5,11 @@
 class CliOptions
 {
 
+    /**
+     * @var true|null
+     */
+    public $version = null;
+
     /**
      * @var true|null
      */

src/Exception/AbortException.php

@@ -0,0 +1,13 @@
+<?php declare(strict_types = 1);
+
+namespace ShipMonk\ComposerDependencyAnalyser\Exception;
+
+class AbortException extends RuntimeException
+{
+
+    public function __construct()
+    {
+        parent::__construct('');
+    }
+
+}

src/Initializer.php

@@ -3,15 +3,19 @@
 namespace ShipMonk\ComposerDependencyAnalyser;
 
 use Composer\Autoload\ClassLoader;
+use Composer\InstalledVersions;
+use OutOfBoundsException;
 use ShipMonk\ComposerDependencyAnalyser\Config\Configuration;
 use ShipMonk\ComposerDependencyAnalyser\Config\ErrorType;
+use ShipMonk\ComposerDependencyAnalyser\Exception\AbortException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidCliException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidConfigException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidPathException;
 use ShipMonk\ComposerDependencyAnalyser\Result\ConsoleFormatter;
 use ShipMonk\ComposerDependencyAnalyser\Result\JunitFormatter;
 use ShipMonk\ComposerDependencyAnalyser\Result\ResultFormatter;
 use Throwable;
+use function class_exists;
 use function count;
 use function get_class;
 use function is_file;
@@ -28,6 +32,7 @@ class Initializer
     vendor/bin/composer-dependency-analyser
 
 Options:
+    --version                   Print analyser version.
     --help                      Print this help text and exit.
     --verbose                   Print more usage examples
     --show-all-usages           Removes the limit of showing only few usages
@@ -220,6 +225,7 @@ public function initComposerClassLoaders(): array
 
     /**
      * @param list<string> $argv
+     * @throws AbortException
      * @throws InvalidCliException
      */
     public function initCliOptions(string $cwd, array $argv): CliOptions
@@ -228,7 +234,12 @@ public function initCliOptions(string $cwd, array $argv): CliOptions
 
         if ($cliOptions->help !== null) {
             $this->stdOutPrinter->printLine(self::$help);
-            throw new InvalidCliException(''); // just exit
+            throw new AbortException();
+        }
+
+        if ($cliOptions->version !== null) {
+            $this->stdOutPrinter->printLine($this->deduceVersion());
+            throw new AbortException();
         }
 
         return $cliOptions;
@@ -256,4 +267,19 @@ public function initFormatter(CliOptions $options): ResultFormatter
         throw new InvalidConfigException("Invalid format option provided, allowed are 'console' or 'junit'.");
     }
 
+    private function deduceVersion(): string
+    {
+        try {
+            /** @throws OutOfBoundsException */
+            $version = class_exists(InstalledVersions::class)
+                ? InstalledVersions::getPrettyVersion('shipmonk/composer-dependency-analyser')
+                : 'unknown';
+
+        } catch (OutOfBoundsException $e) {
+            $version = 'not found';
+        }
+
+        return "Version: $version";
+    }
+
 }

tests/BinTest.php

@@ -24,6 +24,7 @@ public function test(): void
         $okOutput = 'No composer issues found';
         $dumpingOutput = 'Dumping sample usages of';
         $helpOutput = 'Usage:';
+        $versionOutput = 'Version:';
 
         $usingConfig = 'Using config';
 
@@ -32,8 +33,9 @@ public function test(): void
         $this->runCommand('php bin/composer-dependency-analyser', $rootDir, 0, $okOutput, $usingConfig);
         $this->runCommand('php bin/composer-dependency-analyser --verbose', $rootDir, 0, $okOutput, $usingConfig);
         $this->runCommand('php ../bin/composer-dependency-analyser', $testsDir, 255, null, $noComposerJsonError);
-        $this->runCommand('php bin/composer-dependency-analyser --help', $rootDir, 255, $helpOutput);
-        $this->runCommand('php ../bin/composer-dependency-analyser --help', $testsDir, 255, $helpOutput);
+        $this->runCommand('php bin/composer-dependency-analyser --help', $rootDir, 0, $helpOutput);
+        $this->runCommand('php ../bin/composer-dependency-analyser --help', $testsDir, 0, $helpOutput);
+        $this->runCommand('php ../bin/composer-dependency-analyser --version', $testsDir, 0, $versionOutput);
         $this->runCommand('php bin/composer-dependency-analyser --composer-json=composer.json', $rootDir, 0, $okOutput, $usingConfig);
         $this->runCommand('php bin/composer-dependency-analyser --composer-json=composer.lock', $rootDir, 255, null, $noPackagesError);
         $this->runCommand('php bin/composer-dependency-analyser --composer-json=README.md', $rootDir, 255, null, $parseError);

tests/InitializerTest.php

@@ -5,7 +5,7 @@
 use PHPUnit\Framework\TestCase;
 use ShipMonk\ComposerDependencyAnalyser\Config\ErrorType;
 use ShipMonk\ComposerDependencyAnalyser\Config\PathToScan;
-use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidCliException;
+use ShipMonk\ComposerDependencyAnalyser\Exception\AbortException;
 use ShipMonk\ComposerDependencyAnalyser\Exception\InvalidConfigException;
 use ShipMonk\ComposerDependencyAnalyser\Result\ConsoleFormatter;
 use ShipMonk\ComposerDependencyAnalyser\Result\JunitFormatter;
@@ -114,7 +114,7 @@ public function testInitCliOptionsHelp(): void
 
         $initializer = new Initializer(__DIR__, $printer, $printer);
 
-        $this->expectException(InvalidCliException::class);
+        $this->expectException(AbortException::class);
         $initializer->initCliOptions(__DIR__, ['script.php', '--help']);
     }