fix(deploy): misc. re-arrange scripts and organize

tools/scripts/build/ensure-env.js

@@ -0,0 +1,65 @@
+const fs = require('fs');
+const path = require('path');
+const debug = require('debug');
+
+const env = require('../../../config/env');
+
+const { getChallengesForLang } = require('../../../curriculum/getChallenges');
+const { createPathMigrationMap } = require('../seed/createPathMigrationMap');
+
+const { createRedirects } = require('./createRedirects');
+
+const log = debug('fcc:tools:ensure-env');
+
+const { NODE_ENV } = process.env;
+
+const {
+  apiLocation: api,
+  forumLocation: forum,
+  locale,
+  newsLocation: news
+} = env;
+
+const apiPath = path.resolve(__dirname, '../../../api-server');
+const clientPath = path.resolve(__dirname, '../../../client');
+const clientStaticPath = path.resolve(clientPath, 'static');
+const globalConfigPath = path.resolve(__dirname, '../../../config');
+
+if (NODE_ENV === 'production') {
+  const redirects = createRedirects({ api, news, forum });
+  fs.writeFile(`${clientStaticPath}/_redirects`, redirects, function(err) {
+    if (err) {
+      log('Error');
+      console.error(err);
+    }
+    log('_redirects written');
+  });
+} else {
+  log(`ignoring creation of redirect file in ${NODE_ENV}`);
+}
+
+const migrationMapPath = `${apiPath}/server/resources/pathMigration.json`;
+fs.access(migrationMapPath, err => {
+  if (err && NODE_ENV !== 'production') {
+    log('creating pathMigration');
+    return fs.writeFileSync(migrationMapPath, '{}');
+  }
+  if (NODE_ENV === 'production') {
+    return getChallengesForLang(locale)
+      .then(createPathMigrationMap)
+      .then(map => {
+        fs.writeFileSync(migrationMapPath, JSON.stringify(map));
+        log('pathMigration has been written');
+      })
+      .catch(err => {
+        console.error(err);
+        // eslint-disable-next-line
+        process.exit(1);
+      });
+  }
+  log('pathMigration present');
+  return null;
+});
+
+fs.writeFileSync(`${clientPath}/config/env.json`, JSON.stringify(env));
+fs.writeFileSync(`${globalConfigPath}/env.json`, JSON.stringify(env));