feat: write the default environment files

Currently writing the default prod, dev and local files, as explained
in the React starter kit.

closes #16

src/config.js

@@ -1,3 +1,6 @@
-// todo: remove when more items are exported
-// eslint-disable-next-line import/prefer-default-export
 export const DEFAULT_STARTER = 'graasp/graasp-app-starter-react';
+
+// environments
+export const LOCAL = 'local';
+export const DEV = 'dev';
+export const PROD = 'prod';

src/initStarter.js

@@ -5,6 +5,7 @@ import fs from 'fs-extra';
 import HostedGitInfo from 'hosted-git-info';
 import { sync as existsSync } from 'fs-exists-cached';
 import { DEFAULT_STARTER } from './config';
+import writeEnvFiles from './writeEnvFiles';
 
 // use execa to spawn a better child process
 const spawn = (cmd, opts = { stdio: 'inherit' }) => {
@@ -114,6 +115,8 @@ const clone = async (hostInfo, rootPath) => {
 
   await install(rootPath);
 
+  await writeEnvFiles(rootPath);
+
   await commit(rootPath);
 };
 

src/writeEnvFiles.js

@@ -0,0 +1,73 @@
+import fs from 'fs-extra';
+import path from 'path';
+import { DEV, LOCAL, PROD } from './config';
+
+const writeRemoteEnvFile = async (
+  env,
+  rootPath,
+  {
+    graaspDeveloperId = '',
+    graaspAppId = '',
+    awsAccessKeyId = '',
+    awsSecretAccessKey = '',
+  } = {},
+) => {
+  const host = env === PROD ? 'apps.graasp.eu' : 'apps.dev.graasp.eu';
+  const bucket = `graasp-apps-${env}`;
+  const string = `
+    REACT_APP_GRAASP_DEVELOPER_ID=${graaspDeveloperId}
+    REACT_APP_GRAASP_APP_ID=${graaspAppId}
+    REACT_APP_GRAASP_DOMAIN=graasp.eu
+    REACT_APP_HOST=${host}
+    REACT_APP_VERSION=latest
+    REACT_APP_BASE=//$REACT_APP_HOST/$REACT_APP_GRAASP_DEVELOPER_ID/$REACT_APP_GRAASP_APP_ID/$REACT_APP_VERSION/
+    NODE_ENV=production
+    BUCKET=${bucket}
+    AWS_DEFAULT_REGION=us-east-1
+    AWS_ACCESS_KEY_ID=${awsAccessKeyId}
+    AWS_SECRET_ACCESS_KEY=${awsSecretAccessKey}
+  `;
+  try {
+    await fs.writeFile(path.join(rootPath, `.env.${env}`), string, 'utf8');
+  } catch (e) {
+    console.error(e);
+  }
+};
+
+const writeLocalEnvFile = async (env, rootPath) => {
+  const string = `
+    REACT_APP_GRAASP_DEVELOPER_ID=
+    REACT_APP_GRAASP_APP_ID=
+    REACT_APP_GRAASP_DOMAIN=localhost
+    REACT_APP_HOST=
+    REACT_APP_VERSION=
+    REACT_APP_BASE=
+  `;
+  try {
+    await fs.writeFile(path.join(rootPath, '.env.local'), string, 'utf8');
+  } catch (e) {
+    console.error(e);
+  }
+};
+
+
+const writeEnvFile = async (env, rootPath) => {
+  switch (env) {
+    case LOCAL:
+      return writeLocalEnvFile(env, rootPath);
+    case DEV:
+    case PROD:
+      return writeRemoteEnvFile(env, rootPath);
+    default:
+      return false;
+  }
+};
+
+
+const writeEnvFiles = async (rootPath) => {
+  console.log('writing environment files...');
+  await Promise.all([LOCAL, DEV, PROD].map(env => writeEnvFile(env, rootPath)));
+  console.log('wrote environment files');
+};
+
+export default writeEnvFiles;