Add script to get homebrew and snapcraft metrics

.gitignore

@@ -22,6 +22,7 @@ snap
 stage
 *.snap
 *.xdelta3
+meta/metrics/snapcraft.cfg
 
 # flatpak files
 .flatpak-builder

meta/metrics/homebrew_metrics.py

@@ -0,0 +1,13 @@
+import requests
+
+days = 30
+
+# https://formulae.brew.sh/api/formula/cointop.json
+url = f'https://formulae.brew.sh/api/analytics/install/{days}d.json'
+
+r = requests.get(url)
+data = r.json()
+entry = [x for x in data['items'] if x['formula'] == 'cointop'][0]
+total = entry['count']
+
+print(total)

meta/metrics/snapcraft_metrics.py

@@ -0,0 +1,60 @@
+import configparser
+import pymacaroons
+import requests
+import json
+from datetime import date, timedelta
+
+# Generate config with "package_metrics" ACL:
+# $ snapcraft export-login --snaps cointop --acls package_metrics --expires '2020-12-01 00:00:00' snapcraft.cfg
+config_path = 'snapcraft.cfg'
+days = 30
+
+today = date.today()
+start = (today - timedelta(days=days)).strftime("%Y-%m-%d")
+end = today.strftime("%Y-%m-%d")
+
+config = configparser.ConfigParser()
+config.read(config_path)
+
+macaroon = config['login.ubuntu.com']['macaroon']
+unbound_discharge = config['login.ubuntu.com']['unbound_discharge']
+
+root_macaroon = pymacaroons.Macaroon.deserialize(macaroon)
+unbound = pymacaroons.Macaroon.deserialize(unbound_discharge)
+bound = root_macaroon.prepare_for_request(unbound)
+discharge_macaroon_raw = bound.serialize()
+auth = "Macaroon root={}, discharge={}".format(macaroon, discharge_macaroon_raw)
+
+# https://dashboard.snapcraft.io/docs/api/snap.html#obtaining-information-about-a-snap
+url = 'https://dashboard.snapcraft.io/dev/api/snaps/info/cointop'
+r = requests.get(url, headers={'Authorization': auth, 'Content-Type': 'application/json'})
+data = r.json()
+snap_id = data['snap_id']
+
+# https://dashboard.snapcraft.io/docs/api/snap.html#post--dev-api-snaps-metrics
+url = 'https://dashboard.snapcraft.io/dev/api/snaps/metrics'
+payload = {
+    'filters': [
+        {
+            'snap_id': snap_id,
+            'metric_name': 'installed_base_by_channel',
+            'start': start,
+            'end': end
+        }
+    ]
+}
+r = requests.post(
+        url,
+        data=json.dumps(payload),
+        headers={
+            'Authorization': auth,
+            'Content-Type': 'application/json',
+            'Accept': 'application/json'
+        }
+    )
+data = r.json()
+series = data['metrics'][0]['series']
+values = [x for x in series if x['name'] == 'stable'][0]['values']
+total = sum(values)
+
+print(total)