Merge pull request #2650 from Tyriar/378_add_usage

Add -h/-v command line args and unified launch scripts

resources/common/bin/code.sh

+#!/usr/bin/env bash
+#
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+	if [ -x "/Applications/Visual Studio Code.app" ]; then
+		VSCODE_DIR="/Applications/Visual Studio Code.app/Contents/MacOS"
+	elif [ -x "$HOME/Applications/Visual Studio Code.app" ]; then
+		VSCODE_DIR="$HOME/Applications/Visual Studio Code.app/Contents/MacOS"
+	else
+		echo "Could not locate Visual Studio Code.app"
+		exit 1
+	fi
+	ELECTRON_FILE="Electron"
+else
+	VSCODE_DIR="/usr/share/code"
+	if [ -x "$VSCODE_DIR/Code" ]; then
+		ELECTRON_FILE="Code"
+	elif [ -x "$VSCODE_DIR/Code - OSS" ]; then
+		ELECTRON_FILE="Code - OSS"
+	else
+		echo "Could not locate Visual Studio Code executable."
+		exit 1
+	fi
+fi
+
+VSCODE_LAUNCHER="$VSCODE_DIR/launcher.js"
+
+ATOM_SHELL_INTERNAL_RUN_AS_NODE=1 VSCODE_PATH="$VSCODE_DIR/$ELECTRON_FILE" \
+	"$VSCODE_DIR/$ELECTRON_FILE" $VSCODE_LAUNCHER "$@"
+exit $?

resources/common/bin/launcher.js

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+/* global process */
+
+var packageJson = require('../../../package.json');
+var os = require('os');
+var spawn = require('child_process').spawn;
+
+function ArgParser(args) {
+	this.args = args;
+}
+
+ArgParser.prototype.hasFlag = function (flag, alias) {
+	return (flag && this.args.indexOf('--' + flag) >= 0) ||
+		(alias && this.args.indexOf('-' + alias) >= 0);
+}
+
+ArgParser.prototype.printHelp = function () {
+	var executable = 'code' + (os.platform() == 'win32' ? '.exe' : '');
+	console.log(
+		'Visual Studio Code v' + packageJson.version + '\n' +
+		'\n' +
+		'Usage: ' + executable + ' [arguments] [paths...]\n' +
+		'\n' +
+		'Options:\n' +
+		'  -h, --help     Print usage.\n' +
+		'  --locale       Use a specific locale.\n' +
+		'  -n             Force a new instance of code.\n' +
+		'  -v, --version  Print version.');
+}
+
+function parseArgs() {
+	var argParser = new ArgParser(process.argv.slice(2));
+	if (argParser.hasFlag('help', 'h')) {
+		argParser.printHelp();
+		process.exit(0);
+	}
+	if (argParser.hasFlag('version', 'v')) {
+		console.log(packageJson.version);
+		process.exit(0);
+	}
+}
+
+function launchCode() {
+	delete process.env['ATOM_SHELL_INTERNAL_RUN_AS_NODE'];
+	spawn(process.env['VSCODE_PATH'], process.argv.slice(2), { detached: true, stdio: 'ignore' });
+}
+
+function main() {
+	parseArgs();
+	launchCode();
+	process.exit(0);
+}
+
+main();