chore(release): 0.1.0

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+[*.{js,jsx}]
+indent_style = space
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+end_of_line = lf
+# editorconfig-tools is unable to ignore longs strings or urls
+max_line_length = null
+
+[*.{yml,json}]
+indent_style = space
+indent_size = 2
+
+[Makefile]
+indent_style = tab

.eslintrc.json

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+{
+  "extends": ["prettier"],
+  "parserOptions": {
+    "ecmaVersion": 9
+  },
+  "rules": {
+    "quotes": ["error", "single"],
+    "semi": ["error", "always"]
+  }
+}

.prettierrc

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+{
+  "trailingComma": "es5",
+  "semi": true,
+  "singleQuote": true
+}

LICENSE

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+Copyright 2018 Michael Lin <[email protected]>
+
+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.

README.md

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+# better-opn
+
+> A better opn. Reuse the same tab on Chrome for 👨‍💻. Inspire by [create-react-app](https://github.com/facebook/create-react-app)
+
+## Install
+
+`opn` is a peer dependency, make sure you install it as well.
+
+```bash
+yarn add opn better-opn
+```
+
+```bash
+npm install opn better-opn
+```
+
+## Usage
+
+If you wish to overwrite the default browser, override `BROWSER` environment variable to your desire browser name (name is platform dependent).
+
+```js
+const opn = require('better-opn');
+
+opn('http://localhost:3000');
+```
+
+## Author
+
+- [Michael Lin](mailto:[email protected])

index.js

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+const { execSync } = require('child_process');
+
+const OSX_CHROME = 'google chrome';
+
+const Actions = Object.freeze({
+  NONE: 0,
+  BROWSER: 1,
+});
+
+const getBrowserEnv = () => {
+  // Attempt to honor this environment variable.
+  // It is specific to the operating system.
+  // See https://github.com/sindresorhus/opn#app for documentation.
+  const value = process.env.BROWSER;
+  let action;
+  if (!value) {
+    // Default.
+    action = Actions.BROWSER;
+  } else if (value.toLowerCase() === 'none') {
+    action = Actions.NONE;
+  } else {
+    action = Actions.BROWSER;
+  }
+  return { action, value };
+};
+
+// Copy from
+// https://github.com/facebook/create-react-app/blob/master/packages/react-dev-utils/openBrowser.js#L64
+const startBrowserProcess = (browser, url, opts = {}) => {
+  // If we're on OS X, the user hasn't specifically
+  // requested a different browser, we can try opening
+  // Chrome with AppleScript. This lets us reuse an
+  // existing tab when possible instead of creating a new one.
+  const shouldTryOpenChromeWithAppleScript =
+    process.platform === 'darwin' &&
+    (typeof browser !== 'string' || browser === OSX_CHROME);
+
+  if (shouldTryOpenChromeWithAppleScript) {
+    try {
+      // Try our best to reuse existing tab
+      // on OS X Google Chrome with AppleScript
+      execSync('ps cax | grep "Google Chrome"');
+      execSync('osascript openChrome.applescript "' + encodeURI(url) + '"', {
+        cwd: __dirname,
+        stdio: 'ignore',
+      });
+      return true;
+    } catch (err) {
+      // Ignore errors.
+    }
+  }
+
+  // Another special case: on OS X, check if BROWSER has been set to "open".
+  // In this case, instead of passing `open` to `opn` (which won't work),
+  // just ignore it (thus ensuring the intended behavior, i.e. opening the system browser):
+  // https://github.com/facebook/create-react-app/pull/1690#issuecomment-283518768
+  if (process.platform === 'darwin' && browser === 'open') {
+    browser = undefined;
+  }
+
+  // Fallback to opn
+  // (It will always open new tab)
+  try {
+    var options = { app: browser, ...opts };
+    console.debug(options);
+    require('opn')(url, options).catch(() => {}); // Prevent `unhandledRejection` error.
+    return true;
+  } catch (err) {
+    return false;
+  }
+};
+
+module.exports = (target, opts) => {
+  const { action, value } = getBrowserEnv();
+  switch (action) {
+    case Actions.NONE:
+      // Special case: BROWSER="none" will prevent opening completely.
+      return false;
+    case Actions.BROWSER:
+      return startBrowserProcess(value, target, opts);
+    default:
+      throw new Error('Not implemented.');
+  }
+};

openChrome.applescript

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+(*
+Copyright (c) 2015-present, Facebook, Inc.
+
+This source code is licensed under the MIT license found in the
+LICENSE file in the root directory of this source tree.
+*)
+
+property targetTab: null
+property targetTabIndex: -1
+property targetWindow: null
+
+on run argv
+  set theURL to item 1 of argv
+
+  tell application "Chrome"
+
+    if (count every window) = 0 then
+      make new window
+    end if
+
+    -- 1: Looking for tab running debugger
+    -- then, Reload debugging tab if found
+    -- then return
+    set found to my lookupTabWithUrl(theURL)
+    if found then
+      set targetWindow's active tab index to targetTabIndex
+      tell targetTab to reload
+      tell targetWindow to activate
+      set index of targetWindow to 1
+      return
+    end if
+
+    -- 2: Looking for Empty tab
+    -- In case debugging tab was not found
+    -- We try to find an empty tab instead
+    set found to my lookupTabWithUrl("chrome://newtab/")
+    if found then
+      set targetWindow's active tab index to targetTabIndex
+      set URL of targetTab to theURL
+      tell targetWindow to activate
+      return
+    end if
+
+    -- 3: Create new tab
+    -- both debugging and empty tab were not found
+    -- make a new tab with url
+    tell window 1
+      activate
+      make new tab with properties {URL:theURL}
+    end tell
+  end tell
+end run
+
+-- Function:
+-- Lookup tab with given url
+-- if found, store tab, index, and window in properties
+-- (properties were declared on top of file)
+on lookupTabWithUrl(lookupUrl)
+  tell application "Chrome"
+    -- Find a tab with the given url
+    set found to false
+    set theTabIndex to -1
+    repeat with theWindow in every window
+      set theTabIndex to 0
+      repeat with theTab in every tab of theWindow
+        set theTabIndex to theTabIndex + 1
+        if (theTab's URL as string) contains lookupUrl then
+          -- assign tab, tab index, and window to properties
+          set targetTab to theTab
+          set targetTabIndex to theTabIndex
+          set targetWindow to theWindow
+          set found to true
+          exit repeat
+        end if
+      end repeat
+
+      if found then
+        exit repeat
+      end if
+    end repeat
+  end tell
+  return found
+end lookupTabWithUrl

package.json

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+{
+  "name": "better-opn",
+  "version": "0.1.0",
+  "description": "A better opn. Reuse the same tab on Chrome for 👨‍💻.",
+  "main": "index.js",
+  "repository": "[email protected]:ExiaSR/better-opn.git",
+  "author": "Michael Lin <[email protected]>",
+  "license": "MIT",
+  "private": false,
+  "keywords": [
+    "opn",
+    "open",
+    "opener",
+    "launch",
+    "browser"
+  ],
+  "files": [
+    "index.js",
+    "openChrome.applescript",
+    "package.json",
+    "README.md",
+    "yarn.lock"
+  ],
+  "devDependencies": {
+    "eslint": "^5.2.0",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-prettier": "^2.6.2",
+    "opn": "^5.3.0",
+    "prettier": "^1.13.7"
+  },
+  "peerDependencies": {
+    "opn": "^5.3.0"
+  }
+}

test/open.js

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+const opn = require('../index');
+
+opn('http://localhost:8000');