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Malcolm authoredd3e85364
/** * Copyright (c) 2015-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */'use strict';var fs = require('fs');var path = require('path');var child_process = require('child_process');var os = require('os');var chalk = require('chalk');var shellQuote = require('shell-quote');function isTerminalEditor(editor) { switch (editor) { case 'vim': case 'emacs': case 'nano': return true; } return false;}// Map from full process name to binary that starts the process// We can't just re-use full process name, because it will spawn a new instance// of the app every timevar COMMON_EDITORS = { '/Applications/Atom.app/Contents/MacOS/Atom': 'atom', '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta': '/Applications/Atom Beta.app/Contents/MacOS/Atom Beta', '/Applications/Sublime Text.app/Contents/MacOS/Sublime Text': '/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl', '/Applications/Sublime Text 2.app/Contents/MacOS/Sublime Text 2': '/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl', '/Applications/Visual Studio Code.app/Contents/MacOS/Electron': 'code',};function addWorkspaceToArgumentsIfExists(args, workspace) { if (workspace) { args.unshift(workspace); } return args;}function getArgumentsForLineNumber(editor, fileName, lineNumber, workspace) { var editorBasename = path.basename(editor).replace(/\.(exe|cmd|bat)$/i, ''); switch (editorBasename) { case 'vim': case 'mvim': return [fileName, '+' + lineNumber]; case 'atom': case 'Atom': case 'Atom Beta': case 'subl': case 'sublime': case 'wstorm': case 'appcode': case 'charm': case 'idea': return [fileName + ':' + lineNumber]; case 'joe': case 'emacs': case 'emacsclient': return ['+' + lineNumber, fileName]; case 'rmate': case 'mate': case 'mine': return ['--line', lineNumber, fileName]; case 'code':7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
return addWorkspaceToArgumentsIfExists(
['-g', fileName + ':' + lineNumber],
workspace
);
}
// For all others, drop the lineNumber until we have
// a mapping above, since providing the lineNumber incorrectly
// can result in errors or confusing behavior.
return [fileName];
}
function guessEditor() {
// Explicit config always wins
if (process.env.REACT_EDITOR) {
return shellQuote.parse(process.env.REACT_EDITOR);
}
// Using `ps x` on OSX we can find out which editor is currently running.
// Potentially we could use similar technique for Windows and Linux
if (process.platform === 'darwin') {
try {
var output = child_process.execSync('ps x').toString();
var processNames = Object.keys(COMMON_EDITORS);
for (var i = 0; i < processNames.length; i++) {
var processName = processNames[i];
if (output.indexOf(processName) !== -1) {
return [COMMON_EDITORS[processName]];
}
}
} catch (error) {
// Ignore...
}
}
// Last resort, use old skool env vars
if (process.env.VISUAL) {
return [process.env.VISUAL];
} else if (process.env.EDITOR) {
return [process.env.EDITOR];
}
return [null];
}
function printInstructions(fileName, errorMessage) {
console.log();
console.log(
chalk.red('Could not open ' + path.basename(fileName) + ' in the editor.')
);
if (errorMessage) {
if (errorMessage[errorMessage.length - 1] !== '.') {
errorMessage += '.';
}
console.log(
chalk.red('The editor process exited with an error: ' + errorMessage)
);
}
console.log();
console.log(
'To set up the editor integration, add something like ' +
chalk.cyan('REACT_EDITOR=atom') +
' to the ' +
chalk.green('.env.local') +
' file in your project folder ' +
'and restart the development server.'
);
console.log();
}
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var _childProcess = null;
function launchEditor(fileName, lineNumber) {
if (!fs.existsSync(fileName)) {
return;
}
// Sanitize lineNumber to prevent malicious use on win32
// via: https://github.com/nodejs/node/blob/c3bb4b1aa5e907d489619fb43d233c3336bfc03d/lib/child_process.js#L333
if (lineNumber && isNaN(lineNumber)) {
return;
}
let [editor, ...args] = guessEditor();
if (!editor) {
printInstructions(fileName, null);
return;
}
if (
process.platform === 'linux' &&
fileName.startsWith('/mnt/') &&
/Microsoft/i.test(os.release())
) {
// Assume WSL / "Bash on Ubuntu on Windows" is being used, and
// that the file exists on the Windows file system.
// `os.release()` is "4.4.0-43-Microsoft" in the current release
// build of WSL, see: https://github.com/Microsoft/BashOnWindows/issues/423#issuecomment-221627364
// When a Windows editor is specified, interop functionality can
// handle the path translation, but only if a relative path is used.
fileName = path.relative('', fileName);
}
var workspace = null;
if (lineNumber) {
args = args.concat(
getArgumentsForLineNumber(editor, fileName, lineNumber, workspace)
);
} else {
args.push(fileName);
}
if (_childProcess && isTerminalEditor(editor)) {
// There's an existing editor process already and it's attached
// to the terminal, so go kill it. Otherwise two separate editor
// instances attach to the stdin/stdout which gets confusing.
_childProcess.kill('SIGKILL');
}
if (process.platform === 'win32') {
// On Windows, launch the editor in a shell because spawn can only
// launch .exe files.
_childProcess = child_process.spawn(
'cmd.exe',
['/C', editor].concat(args),
{ stdio: 'inherit' }
);
} else {
_childProcess = child_process.spawn(editor, args, { stdio: 'inherit' });
}
_childProcess.on('exit', function(errorCode) {
_childProcess = null;
if (errorCode) {
printInstructions(fileName, '(code ' + errorCode + ')');
}
});
_childProcess.on('error', function(error) {
printInstructions(fileName, error.message);
});
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}
module.exports = launchEditor;