feat(ci): report webpack bundle size diffs on PRs

scripts/gist-get.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+
+import json
+import os
+import sys
+import urllib2
+
+
+def downloadFile(workdir, path, uri, token):
+    req = urllib2.Request(uri)
+    req.add_header('Authorization', 'token %s' % token)
+    try:
+        response = urllib2.urlopen(req)
+    except Exception as e:
+        print("Request to '%s' failed: %s" % (uri, e))
+    else:
+        with open(os.path.join(workdir, path), "wb") as local_file:
+            local_file.write(response.read())
+
+
+def getGist(workdir, gist_id, token):
+    api = 'api.github.com'
+    uri = 'https://{api}/gists/{gist_id}'.format(api=api, gist_id=gist_id)
+
+    req = urllib2.Request(uri)
+    req.add_header('Authorization', 'token %s' % token)
+    try:
+        response = urllib2.urlopen(req)
+    except Exception as e:
+        print("Request to '%s' failed: %s" % (uri, e))
+    else:
+        data = json.load(response)
+        for filename, meta in data['files'].items():
+            print('Fetching {filename} from {uri}'.format(
+                filename=filename, uri=meta['raw_url']))
+            downloadFile(workdir, filename, meta['raw_url'], token)
+
+
+if __name__ == '__main__':
+    if len(sys.argv) != 3:
+        print('Usage: GIST_ID WORKDIR')
+        sys.exit(1)
+
+    token = os.getenv('GITHUB_TOKEN')
+    if not token:
+        print('GITHUB_TOKEN env variable is missing')
+        sys.exit(1)
+
+    gist_id = sys.argv[1]
+    workdir = sys.argv[2]
+    if not gist_id or not workdir:
+        print('Usage: GIST_ID WORKDIR')
+        sys.exit(1)
+
+    getGist(workdir, gist_id, token)