145 lines
4.2 KiB
JavaScript
145 lines
4.2 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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var chalk = require('chalk');
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var fs = require('fs');
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var path = require('path');
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var child_process = require('child_process');
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function isTerminalEditor(editor) {
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switch (editor) {
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case 'vim':
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case 'emacs':
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case 'nano':
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return true;
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}
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return false;
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}
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// Map from full process name to binary that starts the process
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// We can't just re-use full process name, because it will spawn a new instance
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// of the app every time
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var COMMON_EDITORS = {
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'/Applications/Atom.app/Contents/MacOS/Atom': 'atom',
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'/Applications/Sublime Text.app/Contents/MacOS/Sublime Text':
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'/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl',
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'/Applications/Sublime Text 2.app/Contents/MacOS/Sublime Text 2':
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'/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl',
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};
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function getArgumentsForLineNumber(editor, fileName, lineNumber) {
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switch (path.basename(editor)) {
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case 'vim':
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case 'mvim':
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return [fileName, '+' + lineNumber];
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case 'atom':
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case 'subl':
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case 'sublime':
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return [fileName + ':' + lineNumber];
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case 'joe':
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case 'emacs':
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case 'emacsclient':
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return ['+' + lineNumber, fileName];
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case 'rmate':
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case 'mate':
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case 'mine':
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return ['--line', lineNumber, fileName];
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}
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// For all others, drop the lineNumber until we have
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// a mapping above, since providing the lineNumber incorrectly
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// can result in errors or confusing behavior.
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return [fileName];
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}
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function guessEditor() {
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// Explicit config always wins
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if (process.env.REACT_EDITOR) {
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return process.env.REACT_EDITOR;
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}
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// Using `ps x` on OSX we can find out which editor is currently running.
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// Potentially we could use similar technique for Windows and Linux
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if (process.platform === 'darwin') {
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try {
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var output = child_process.execSync('ps x').toString();
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var processNames = Object.keys(COMMON_EDITORS);
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for (var i = 0; i < processNames.length; i++) {
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var processName = processNames[i];
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if (output.indexOf(processName) !== -1) {
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return COMMON_EDITORS[processName];
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}
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}
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} catch(error) {
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// Ignore...
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}
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}
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// Last resort, use old skool env vars
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return process.env.VISUAL || process.env.EDITOR;
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}
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function printInstructions(title) {
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console.log([
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'',
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chalk.bgBlue.white.bold(' ' + title + ' '),
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' When you see Red Box with stack trace, you can click any ',
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' stack frame to jump to the source file. The packager will launch your ',
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' editor of choice. It will first look at REACT_EDITOR environment ',
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' variable, then at EDITOR. To set it up, you can add something like ',
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' export REACT_EDITOR=atom to your ~/.bashrc or ~/.zshrc depending on ',
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' which shell you use.',
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''
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].join('\n'));
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}
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var _childProcess = null;
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function launchEditor(fileName, lineNumber) {
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if (!fs.existsSync(fileName)) {
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return;
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}
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var editor = guessEditor();
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if (!editor) {
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printInstructions('PRO TIP');
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return;
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}
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var args = [fileName];
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if (lineNumber) {
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args = getArgumentsForLineNumber(editor, fileName, lineNumber);
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}
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console.log('Opening ' + chalk.underline(fileName) + ' with ' + chalk.bold(editor));
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if (_childProcess && isTerminalEditor(editor)) {
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// There's an existing editor process already and it's attached
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// to the terminal, so go kill it. Otherwise two separate editor
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// instances attach to the stdin/stdout which gets confusing.
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_childProcess.kill('SIGKILL');
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}
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_childProcess = child_process.spawn(editor, args, {stdio: 'inherit'});
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_childProcess.on('exit', function(errorCode) {
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_childProcess = null;
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if (errorCode) {
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console.log(chalk.red('Your editor exited with an error!'));
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printInstructions('Keep these instructions in mind:');
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}
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});
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_childProcess.on('error', function(error) {
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console.log(chalk.red(error.message));
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printInstructions('How to fix:');
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});
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}
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module.exports = launchEditor;
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