From 54960f3c7ad389cefb0a9395ed55ba6ba8a877ea Mon Sep 17 00:00:00 2001
From: Johannes Millan <johannes.millan@gmail.com>
Date: Mon, 15 Jul 2019 16:36:23 +0200
Subject: [PATCH] chore: add custom watch task for translation extraction

---
 package.json                 |  3 +-
 tools/extract-i18n-single.js |  3 ++
 tools/extract-i18n-watch.js  |  7 +++++
 tools/extract-i18n.js        | 57 ++++++++++++++++++------------------
 4 files changed, 41 insertions(+), 29 deletions(-)
 create mode 100644 tools/extract-i18n-single.js
 create mode 100644 tools/extract-i18n-watch.js

diff --git a/package.json b/package.json
index 5d5145192..ef38e8415 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,8 @@
     "release.changelog": "conventional-changelog -i CHANGELOG.md -s -p angular",
     "version": "yarn release.changelog && git add -A",
     "buildSchema": "cd tools/schematics && yarn build && cd ../../ && yarn add file:./tools/schematics",
-    "int": "node ./tools/extract-i18n.js",
+    "int": "node ./tools/extract-i18n-single.js",
+    "int:watch": "node ./tools/extract-i18n-watch.js",
     "intFind": "ngx-translate-extract --input ./src --output ./src/assets/i18n/*.json  --sort --format namespaced-json --marker _",
     "intClean": "ngx-translate-extract --input ./src --output ./src/assets/i18n/*.json --clean --sort --format namespaced-json --marker _"
   },
diff --git a/tools/extract-i18n-single.js b/tools/extract-i18n-single.js
new file mode 100644
index 000000000..649cd451b
--- /dev/null
+++ b/tools/extract-i18n-single.js
@@ -0,0 +1,3 @@
+const extractI18n = require('./extract-i18n');
+
+extractI18n();
diff --git a/tools/extract-i18n-watch.js b/tools/extract-i18n-watch.js
new file mode 100644
index 000000000..dfec13158
--- /dev/null
+++ b/tools/extract-i18n-watch.js
@@ -0,0 +1,7 @@
+const extractI18n = require('./extract-i18n');
+const fs = require('fs');
+const MAIN_TRANSLATION_FILE = __dirname + '/../src/assets/i18n/en.json';
+
+fs.watchFile(MAIN_TRANSLATION_FILE, () => {
+  extractI18n();
+});
diff --git a/tools/extract-i18n.js b/tools/extract-i18n.js
index 5d6bee9b2..bdb86bc2c 100644
--- a/tools/extract-i18n.js
+++ b/tools/extract-i18n.js
@@ -1,37 +1,38 @@
 const fs = require('fs');
 const path = __dirname + '/../src/assets/i18n/en.json';
-console.log(path);
 
-const _tr = fs.readFileSync(path);
-const tr = JSON.parse(_tr);
+module.exports = () => {
+  const _tr = fs.readFileSync(path);
+  const tr = JSON.parse(_tr);
 
-const parse = (o, pref = '') => {
-  return Object.keys(o).reduce((acc, key) => {
-    console.log(key);
+  const parse = (o, pref = '') => {
+    return Object.keys(o).reduce((acc, key) => {
+      console.log(key);
 
-    if (typeof o[key] === 'object') {
-      return {
-        ...acc,
-        [key]: parse(o[key], key + '.'),
-      };
-    } else if (typeof o[key] === 'string') {
-      return {
-        ...acc,
-        [key]: pref + key,
-      };
-    } else {
-      throw 'Invalid Data';
-    }
-  }, {});
-};
+      if (typeof o[key] === 'object') {
+        return {
+          ...acc,
+          [key]: parse(o[key], pref + key + '.'),
+        };
+      } else if (typeof o[key] === 'string') {
+        return {
+          ...acc,
+          [key]: pref + key,
+        };
+      } else {
+        throw 'Invalid Data';
+      }
+    }, {});
+  };
 
-const parsed = parse(tr);
-console.log(parsed);
-const string = `export const T = ${JSON.stringify(parsed, null, 2)};
+  const parsed = parse(tr);
+  console.log(parsed);
+  const string = `export const T = ${JSON.stringify(parsed, null, 2)};
 `.replace(/"/g, '\'');
 
 
-fs.writeFileSync(__dirname + '/../src/app/t.const.ts', string, {
-  overwrite: true,
-  flag: 'w'
-});
+  fs.writeFileSync(__dirname + '/../src/app/t.const.ts', string, {
+    overwrite: true,
+    flag: 'w'
+  });
+};