Add an email footer.

app/config/styles.json

@@ -86,5 +86,12 @@
         "float": "right"
       }
     }
+  },
+  "email-footer": {
+    "color": "#999",
+    "font-size": "9pt",
+    "paragraph": {
+      "margin": "0.5em 0"
+    }
   }
 }

app/retrogit.go

@@ -95,6 +95,19 @@ func initTemplates() {
 			}
 			return url.String(), nil
 		},
+		"absoluteRouteUrl": func(name string) (string, error) {
+			url, err := router.Get(name).URL()
+			if err != nil {
+				return "", err
+			}
+			var baseUrl string
+			if appengine.IsDevAppServer() {
+				baseUrl = "http://localhost:8080"
+			} else {
+				baseUrl = "https://www.retrogit.com"
+			}
+			return baseUrl + url.String(), nil
+		},
 		"style": func(names ...string) (result template.CSS) {
 			for _, name := range names {
 				result += styles[name]
@@ -125,7 +138,7 @@ func initTemplates() {
 		_, templateFileName = filepath.Split(fileNames[0])
 		templates[templateName], err = template.New(templateFileName).Funcs(funcMap).ParseFiles(fileNames...)
 		if err != nil {
-			log.Panicf("Could not parse template files for %s: %s", templateFileName, err.Error())
+			log.Printf("Could not parse template files for %s: %s", templateFileName, err.Error())
 		}
 	}
 }

app/templates/digest-email.html

@@ -1 +1,22 @@
 {{template "digest" .Digest}}
+
+<hr noshade size="1" color="#ccc">
+
+<div style="{{style "proportional" "email-footer"}}">
+
+  <p style="{{style "email-footer.paragraph"}}">
+    You are receiving this email because you set up a
+    <a href="{{absoluteRouteUrl "index"}}">RetroGit</a> account.
+  </p>
+
+  <p style="{{style "email-footer.paragraph"}}">
+   <a href="{{absoluteRouteUrl "settings"}}">Update your email preferences</a>
+   | <a href="{{absoluteRouteUrl "view-digest"}}">View digest in browser</a>
+  </p>
+
+  <p style="{{style "email-footer.paragraph"}}">
+    RetroGit is a project by
+    <a href="http://persistent.info">Mihai Parparita</a>.
+  </p>
+
+</div>