Add release task

tasks.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8; -*-
+"""
+Tasks for myweather
+"""
+
+import os
+import json
+
+from invoke import task
+
+
+here = os.path.dirname(__file__)
+
+
+@task
+def release(c):
+    """
+    Release a new version of myweather
+    """
+    # figure out current package version
+    package_json = os.path.join(here, 'package.json')
+    with open(package_json, 'rt') as f:
+        js = json.load(f)
+        version = js['version']
+
+    # build the app, create zip archive
+    c.run('npm run build')
+    os.chdir('dist')
+    filename = f'myweather-{version}.zip'
+    c.run(f'zip --recurse-paths {filename} *')
+    os.chdir(os.pardir)
+
+    # upload zip archive to server
+    c.run(f'scp dist/{filename} weather.edbob.org:/srv/myweather/releases/{filename}')
+    c.run(f"ssh weather.edbob.org 'cd /srv/myweather/releases; ln -sf {filename} latest.zip'")