add version number

app.py

@@ -2,6 +2,7 @@ from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from sqlalchemy import MetaData
 from flask_migrate import Migrate
+import version
 
 app = Flask(__name__)
 
@@ -31,4 +32,4 @@ migrate = Migrate(app, db)
 sentry = None
 if 'SENTRY_DSN' in app.config:
     from raven.contrib.flask import Sentry
-    sentry = Sentry(app, dsn=app.config['SENTRY_DSN'])
+    sentry = Sentry(app, dsn=app.config['SENTRY_DSN'], release=version.version)

tools/post-receive.example

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+while read old new refname; do
+    branch=$(git rev-parse --abbrev-ref=strict ${refname})
+    if [[ $branch == "deploy" ]]; then
+        systemctl --user stop forget
+        GIT_WORK_TREE='/home/codl/forget' git checkout -f deploy
+
+        (
+            cd /home/codl/forget
+            source venv/bin/activate
+            pip install -r requirements.txt
+            tools/write-version.sh
+            FLASK_APP='forget.py' flask db upgrade
+        )
+        systemctl --user start forget
+    fi
+done
+

tools/write-version.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+cd $(dirname $0)/..
+git describe --tags --long --always | python -c 'from jinja2 import Template; print(Template("version=\"{{input}}\"").render(input=input()))' > version.py
+

version.py

@@ -0,0 +1 @@
+version="dev"