From ac9e718ef148ddd673aaa7e6461f1630422d2aa3 Mon Sep 17 00:00:00 2001
From: softsimon <softsimon@protonmail.com>
Date: Sat, 2 May 2020 14:04:33 +0700
Subject: [PATCH] Sync asset registry on build. refs #37

---
 frontend/.gitignore             |  4 ++++
 frontend/package.json           |  6 ++++--
 frontend/sync-asset-registry.js | 21 +++++++++++++++++++++
 3 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 frontend/sync-asset-registry.js

diff --git a/frontend/.gitignore b/frontend/.gitignore
index f4f46a5fe..ac5637d7b 100644
--- a/frontend/.gitignore
+++ b/frontend/.gitignore
@@ -44,3 +44,7 @@ testem.log
 # System Files
 .DS_Store
 Thumbs.db
+
+src/assets/assets.json
+src/assets/assets.minimal.json
+src/assets/asset.icons.json
diff --git a/frontend/package.json b/frontend/package.json
index e95f7bd0a..71591436f 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -21,8 +21,10 @@
   "main": "index.ts",
   "scripts": {
     "ng": "ng",
-    "start": "ng serve --proxy-config proxy.conf.json",
-    "build": "ng build --prod",
+    "start": "npm run sync-assets-dev && ng serve --proxy-config proxy.conf.json",
+    "build": "ng build --prod && npm run sync-assets",
+    "sync-assets": "node sync-asset-registry.js",
+    "sync-assets-dev": "node sync-asset-registry.js dev",
     "test": "ng test",
     "lint": "ng lint",
     "e2e": "ng e2e"
diff --git a/frontend/sync-asset-registry.js b/frontend/sync-asset-registry.js
new file mode 100644
index 000000000..71dab5d42
--- /dev/null
+++ b/frontend/sync-asset-registry.js
@@ -0,0 +1,21 @@
+var https = require('https');
+var fs = require('fs');
+
+var PATH = 'dist/mempool/assets/';
+if (process.argv[2] && process.argv[2] === 'dev') {
+  PATH = 'src/assets/';
+}
+
+function download(filename, url) {
+  var file = fs.createWriteStream(filename);
+  https.get(url, function(response) {
+    response.pipe(file);
+  });
+}
+
+console.log('Downloading assets');
+download(PATH + 'assets.json', 'https://raw.githubusercontent.com/Blockstream/asset_registry_db/master/index.json');
+console.log('Downloading assets minimal');
+download(PATH + 'assets.minimal.json', 'https://raw.githubusercontent.com/Blockstream/asset_registry_db/master/index.minimal.json');
+console.log('Downloading asset icons');
+download(PATH + 'asset.icons.json', 'https://raw.githubusercontent.com/Blockstream/asset_registry_db/master/icons.json');