feat(console): add clish command

src/Console/ClishCommand.php

@@ -0,0 +1,98 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the CLI-SYNTAX package.
+ *
+ * (c) Jitendra Adhikari <jiten.adhikary@gmail.com>
+ *     <https://github.com/adhocore>
+ *
+ * Licensed under MIT license.
+ */
+
+namespace Ahc\CliSyntax\Console;
+
+use Ahc\Cli\Input\Command;
+use Ahc\Cli\IO\Interactor;
+use Ahc\CliSyntax\Exporter;
+use Ahc\CliSyntax\Highlighter;
+
+class ClishCommand extends Command
+{
+    public function __construct()
+    {
+        parent::__construct('clish', 'PHP CLI syntax highlight and/or export.');
+
+        $this
+            ->option('-o --output', 'Output filepath where PNG image is exported')
+            ->option('-e --echo', 'Forces echo to STDOUT when --output is passed')
+            ->option('-f --file', \implode("\n", [
+                'Input PHP file to highlight and/or export',
+                '(will read from piped input if file not given)',
+            ]))
+            ->option('-F --font', 'Font to use for export to png')
+            ->usage(
+                '<bold>  $0</end> <comment>--file file.php</end> ## print<eol/>'
+                . '<bold>  cat file.php | $0</end> ## from piped stream<eol/>'
+                . '<bold>  $0</end> <comment>< file.php ## from redirected stdin<eol/>'
+                . '<bold>  $0</end> <comment>--file file.php --output file.png</end> ## export<eol/>'
+                . '<bold>  $0</end> <comment>--file file.php --output file.png --echo</end> ## print + export<eol/>'
+                . '<bold>  $0</end> <comment>-f file.php -o file.png -F dejavu</end> ## export in dejavu font<eol/>'
+            );
+    }
+
+    public function interact(Interactor $io)
+    {
+        if ($this->file) {
+            return;
+        }
+
+        $code = $io->readPiped(function ($reader) use ($io) {
+            $io->warn('Type in or paste PHP Code below, Press Ctrl+D when done.', true);
+            $io->warn('(Opening tag `<?php` will be prepended as required):', true);
+
+            return $reader->readAll();
+        });
+
+        if ('' !== $code && \substr($code, 0, 5) != '<?php') {
+            $eol  = \substr_count(\rtrim($code), "\n") ? "\n\n" : '';
+            $code = '<?php ' . $eol . $code;
+        }
+
+        $this->set('code', $code);
+    }
+
+    public function execute()
+    {
+        $code = $this->file ? \file_get_contents($this->file) : $this->code;
+        $code = \trim($code);
+
+        if ('' === $code) {
+            return;
+        }
+
+        $this->doExport($code);
+        $this->doHighlight($code);
+    }
+
+    protected function doHighlight(string $code = null)
+    {
+        if (!$this->output || $this->echo) {
+            echo new Highlighter($code);
+        }
+    }
+
+    protected function doExport(string $code = null)
+    {
+        if (!$this->output) {
+            return;
+        }
+
+        if (!\is_dir(\dirname($this->output))) {
+            \mkdir(\dirname($this->output), 0755, true);
+        }
+
+        (new Exporter($code))->export($this->output, \array_filter(['font' => $this->font]));
+    }
+}