Init

.editorconfig

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+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.yml]
+indent_style = space
+indent_size = 2

.gitattributes

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+* text=auto
+*.js text eol=lf

.gitignore

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+node_modules
+yarn.lock

.npmrc

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+package-lock=false

.travis.yml

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+os: osx
+language: node_js
+node_js:
+  - 'node'

index.js

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+'use strict';
+const path = require('path');
+const electron = require('electron');
+const chokidar = require('chokidar');
+const isDev = require('electron-is-dev');
+
+function getMainProcessPaths(topModuleObj) {
+	const cwd = path.dirname(topModuleObj.filename);
+	const paths = new Set([topModuleObj.filename]);
+
+	const getPaths = moduleObj => {
+		for (const child of moduleObj.children) {
+			if (path.relative(cwd, child.filename).includes('node_modules')) {
+				continue;
+			}
+
+			paths.add(child.filename);
+			getPaths(child);
+		}
+	};
+
+	getPaths(topModuleObj);
+
+	return paths;
+}
+
+module.exports = (moduleObj, options = {}) => {
+	// This module should be a dev dependency, but guard
+	// this in case the user included it as a dependency
+	if (!isDev) {
+		return;
+	}
+
+	if (!moduleObj) {
+		throw new Error('You have to pass the `module` object');
+	}
+
+	const cwd = path.dirname(moduleObj.filename);
+	const mainProcessPaths = getMainProcessPaths(moduleObj);
+
+	const watcher = chokidar.watch(cwd, {
+		cwd,
+		disableGlobbing: true,
+		ignored: [
+			/(^|[/\\])\../, // Dotfiles
+			'node_modules',
+			'**/*.map'
+		].concat(options.ignore)
+	});
+
+	if (options.debug) {
+		watcher.on('ready', () => {
+			console.log('Watched paths:', watcher.getWatched());
+		});
+	}
+
+	watcher.on('change', filePath => {
+		if (options.debug) {
+			console.log('File changed:', filePath);
+		}
+
+		if (mainProcessPaths.has(path.join(cwd, filePath))) {
+			electron.app.relaunch();
+			electron.app.exit(0);
+		} else {
+			for (const win of electron.BrowserWindow.getAllWindows()) {
+				win.webContents.reloadIgnoringCache();
+			}
+		}
+	});
+};

license

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+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package.json

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+{
+	"name": "electron-reloader",
+	"version": "0.0.0",
+	"description": "Simple auto-reloading for Electron apps during development",
+	"license": "MIT",
+	"repository": "sindresorhus/electron-reloader",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"scripts": {
+		"test": "xo",
+		"start": "electron test"
+	},
+	"files": [
+		"index.js"
+	],
+	"keywords": [
+		"electron",
+		"reload",
+		"reloader",
+		"livereload",
+		"auto-reload",
+		"live-reload",
+		"refresh",
+		"restart",
+		"watch",
+		"watcher",
+		"watching",
+		"monitor",
+		"hot",
+		"files",
+		"fs",
+		"dev",
+		"development"
+	],
+	"dependencies": {
+		"chokidar": "^2.0.0",
+		"electron-is-dev": "^0.3.0"
+	},
+	"devDependencies": {
+		"electron": "^1.7.10",
+		"xo": "*"
+	},
+	"xo": {
+		"envs": [
+			"node",
+			"browser"
+		]
+	}
+}

readme.md

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+# electron-reloader [![Build Status](https://travis-ci.org/sindresorhus/electron-reloader.svg?branch=master)](https://travis-ci.org/sindresorhus/electron-reloader)
+
+> Simple auto-reloading for Electron apps during development
+
+It *just works*. When files used in the main process are changed, the app is restarted, and when files used in the browser window are changed, the page is reloaded.
+
+
+## Install
+
+```
+$ npm install --save-dev electron-reloader
+```
+
+
+## Usage
+
+The following must be included in the app entry file, usually named `index.js`:
+
+```js
+try {
+	require('electron-reloader')(module);
+} catch (err) {}
+```
+
+You have to pass the `module` object so we can read the module graph and figure out which files belong to the main process.
+
+The `try/catch` is needed so it doesn't throw `Cannot find module 'electron-reloader'` in production.
+
+
+## API
+
+### reloader(module, [options])
+
+#### module
+
+Type: `Object`
+
+The global `module` object.
+
+#### options
+
+Type: `Object`
+
+##### debug
+
+Type: `boolean`<br>
+Default: `false`
+
+Prints watched paths and when files change. Can be useful to make sure you set it up correctly.
+
+##### ignore
+
+Type: `Array<string|RegExp>`
+
+Ignore patterns passed to [`chokidar`](https://github.com/paulmillr/chokidar#path-filtering). By default, files/directories starting with a `.`, `.map` files, and `node_modules` directories are ignored. This option is additive to those.
+
+
+## Tip
+
+### Using it with webpack watch mode
+
+Just add the source directory to the `ignore` option. The dist directory is already watched, so when a source file changes, webpack will build it and output it to the dist directory, which this module will detect.
+
+
+## Related
+
+- [electron-util](https://github.com/sindresorhus/electron-util) - Useful utilities for developing Electron apps and modules
+- [electron-debug](https://github.com/sindresorhus/electron-debug) - Adds useful debug features to your Electron app
+- [electron-context-menu](https://github.com/sindresorhus/electron-context-menu) - Context menu for your Electron app
+- [electron-dl](https://github.com/sindresorhus/electron-dl) - Simplified file downloads for your Electron app
+- [electron-unhandled](https://github.com/sindresorhus/electron-unhandled) - Catch unhandled errors and promise rejections in your Electron app
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)

test/index.html

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+<!doctype html>
+<html>
+	<head>
+		<meta charset="utf-8">
+	</head>
+	<body>
+		<h1>Test</h1>
+	</body>
+</html>

test/index.js

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+'use strict';
+const electron = require('electron');
+
+require('..')(module, {
+	debug: true
+});
+
+electron.app.on('ready', () => {
+	const win = new electron.BrowserWindow();
+	win.loadURL(`file://${__dirname}/index.html`);
+});

test/readme.md

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+# Testing
+
+The tests are manual as I have no idea how to automate this.
+
+From the root directory, run `npm start`, and then edit `index.html` to see the window refresh and `index.js` to see the app restart.