fix: automatically write env.json with contents from env

closes #116

README.md

@@ -39,6 +39,7 @@ REACT_APP_GRAASP_API_HOST=https://api.graasp.eu
 REACT_APP_GRAASP_HOST=https://graasp.eu
 REACT_APP_GOOGLE_ANALYTICS_ID=
 REACT_APP_SENTRY_DSN=
+SENTRY_DSN=
 GOOGLE_API_KEY=
 BROWSER=none
 ```
@@ -60,8 +61,10 @@ you can get [here](https://developers.google.com/maps/documentation/geolocation/
 The `BROWSER=none` assignment simply tells Electron not to use a browser to load, but instead to
 use the native OS windows.
 
-Currently you also need to create a file in the `public/` folder called `env.json` with the
-following contents.
+When you first run or build the application, a file called `env.json` will be created under the
+`public/` folder. If you update your `.env.local` and `.env` file with values for the variables
+below, the contents of this file will also update the next time you run or build. This process is
+handled by `scripts/setup.js`.
 
 ```json
 {

package.json

@@ -22,25 +22,27 @@
   },
   "scripts": {
     "dev": "yarn react-scripts start",
-    "build": "env-cmd ./.env react-scripts build",
-    "start": "concurrently \"env-cmd ./.env.local react-scripts start\" \"wait-on http://localhost:3000 && env-cmd ./.env.local electron .\"",
+    "build": "env-cmd -f ./.env react-scripts build",
+    "start": "concurrently \"env-cmd -f ./.env.local react-scripts start\" \"wait-on http://localhost:3000 && env-cmd -f ./.env.local electron .\"",
     "pack": "electron-builder --dir",
     "postinstall": "electron-builder install-app-deps",
+    "prestart": "env-cmd -f ./.env.local node scripts/setup.js",
+    "prebuild": "env-cmd -f ./.env node scripts/setup.js",
     "predist": "yarn build",
     "lint": "eslint .",
     "prettier:check": "prettier --check '{src,public}/**/*.js'",
     "prettier:write": "prettier --write '{src,public}/**/*.js'",
     "test": "react-scripts test",
-    "dist": "env-cmd ./.env electron-builder",
+    "dist": "env-cmd -f ./.env electron-builder",
     "prerelease": "yarn test:once && yarn build",
-    "release": "git add CHANGELOG.md && standard-version -a && env-cmd ./.env build -mwl",
+    "release": "git add CHANGELOG.md && standard-version -a && env-cmd -f ./.env build -mwl",
     "hooks:uninstall": "node node_modules/husky/husky.js uninstall",
     "hooks:install": "node node_modules/husky/husky.js install",
     "postrelease": "git push --follow-tags origin master",
-    "test:once": "cross-env CI=true env-cmd ./.env.test react-scripts test --env=jsdom",
-    "test:coverage": "cross-env CI=true env-cmd ./.env.test react-scripts test --env=jsdom --coverage",
+    "test:once": "cross-env CI=true env-cmd -f ./.env.test react-scripts test --env=jsdom",
+    "test:coverage": "cross-env CI=true env-cmd -f ./.env.test react-scripts test --env=jsdom --coverage",
     "test:ci": "run-s test:coverage report",
-    "report": "cat ./coverage/lcov.info | env-cmd ./.env.test codacy-coverage"
+    "report": "cat ./coverage/lcov.info | env-cmd -f ./.env.test codacy-coverage"
   },
   "dependencies": {
     "@material-ui/core": "4.1.1",
@@ -102,7 +104,7 @@
     "cross-env": "5.2.0",
     "electron": "5.0.3",
     "electron-builder": "20.43.0",
-    "env-cmd": "8.0.2",
+    "env-cmd": "9.0.3",
     "eslint-config-airbnb": "17.1.0",
     "eslint-config-prettier": "4.2.0",
     "husky": "2.1.0",

scripts/setup.js

@@ -0,0 +1,14 @@
+const fs = require('fs');
+const path = require('path');
+
+const DEFAULT_PATH = './public/';
+const NAME = 'env.json';
+
+const { SENTRY_DSN = '', GOOGLE_API_KEY = '' } = process.env;
+
+const env = JSON.stringify({
+  SENTRY_DSN,
+  GOOGLE_API_KEY,
+});
+
+fs.writeFileSync(path.join(DEFAULT_PATH, NAME), env, { encoding: 'utf8' });

yarn.lock

@@ -3558,7 +3558,7 @@ commander@2.17.x:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
   integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
 
-commander@^2.11.0, commander@^2.19.0, commander@^2.x, commander@~2.20.0:
+commander@^2.0.0, commander@^2.11.0, commander@^2.19.0, commander@^2.x, commander@~2.20.0:
   version "2.20.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
   integrity sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==
@@ -5139,12 +5139,13 @@ entities@^1.1.1, entities@~1.1.1:
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
   integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
 
-env-cmd@8.0.2:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/env-cmd/-/env-cmd-8.0.2.tgz#e3bf53b8e4676781bdc3a0b1a2f7612cbcda4da4"
-  integrity sha512-gHX8MnQXw1iS7dc2KeJdBdxca7spIkxkNwIuORLwm8kDg6xHh5wWnv1Yv3pc64nLZR6kufQSCmwTz16sRmd/rg==
+env-cmd@9.0.3:
+  version "9.0.3"
+  resolved "https://registry.yarnpkg.com/env-cmd/-/env-cmd-9.0.3.tgz#b85265f5a9fd4c5fc7d7eff34e341dc28c3f9801"
+  integrity sha512-DXNeSkLMlYOmq9At+GyvqpdIDuy3gRvz2Z77kN4cAhRbAGVmeiYaqdWqgHSTJ9wCck6ZD0rtbhHVcN7cc2j7rw==
   dependencies:
-    cross-spawn "^6.0.5"
+    commander "^2.0.0"
+    cross-spawn "^6.0.0"
 
 env-paths@^1.0.0:
   version "1.0.0"