Use a template to set the footer on ChangeEmails.

Add an admin editable ChangeFooter.vm template used to
format the footer in ChangeEmails.

Change-Id: I8f6f80b7a3e1fdb39ee1ea20aa84738286bce826

Documentation/config-mail.txt

@@ -25,6 +25,12 @@ are listed below.  Change emails are influenced by two additional templates,
 one to set the subject line, and one to set the footer which gets appended to
 all the change emails (see `ChangeSubject.vm` and `ChangeFooter.vm` below.)
 
+ChangeFooter.vm
+~~~~~~~~~~~~~~~
+
+The `ChangeFooter.vm` template will determine the contents of the footer
+text that will be appended to emails related to changes (all `ChangeEmails)`.
+
 ChangeSubject.vm
 ~~~~~~~~~~~~~~~~
 

gerrit-pgm/src/main/java/com/google/gerrit/pgm/init/SitePathInitializer.java

@@ -85,6 +85,7 @@ public class SitePathInitializer {
     extract(site.gerrit_sh, Init.class, "gerrit.sh");
     chmod(0755, site.gerrit_sh);
 
+    extractMailExample("ChangeFooter.vm");
     extractMailExample("ChangeSubject.vm");
     extractMailExample("Merged.vm");
 

gerrit-server/src/main/java/com/google/gerrit/server/mail/ChangeEmail.java

@@ -52,7 +52,6 @@ public abstract class ChangeEmail extends OutgoingEmail {
 
   private ProjectState projectState;
   protected ChangeData changeData;
-  private boolean inFooter;
 
   protected ChangeEmail(EmailArguments ea, final Change c, final String mc) {
     super(ea, mc);
@@ -76,29 +75,7 @@ public abstract class ChangeEmail extends OutgoingEmail {
   /** Format the message body by calling {@link #appendText(String)}. */
   protected void format() throws EmailException {
     formatChange();
-    if (getChangeUrl() != null) {
+    appendText(velocifyFile("ChangeFooter.vm"));
-      openFooter();
-      appendText("To view visit ");
-      appendText(getChangeUrl());
-      appendText("\n");
-    }
-    if (getSettingsUrl() != null) {
-      openFooter();
-      appendText("To unsubscribe, visit ");
-      appendText(getSettingsUrl());
-      appendText("\n");
-    }
-
-    if (inFooter) {
-      appendText("\n");
-    } else {
-      openFooter();
-    }
-    appendText("Gerrit-MessageType: " + messageClass + "\n");
-    appendText("Gerrit-Project: " + projectName + "\n");
-    appendText("Gerrit-Branch: " + change.getDest().getShortName() + "\n");
-    appendText("Gerrit-Owner: " + getNameEmailFor(change.getOwner()) + "\n");
-
     try {
       HashSet<Account.Id> reviewers = new HashSet<Account.Id>();
       for (PatchSetApproval p : args.db.get().patchSetApprovals().byChange(
@@ -158,8 +135,6 @@ public abstract class ChangeEmail extends OutgoingEmail {
     setListIdHeader();
     setChangeUrlHeader();
     setCommitIdHeader();
-
-    inFooter = false;
   }
 
   private void setListIdHeader() {
@@ -223,13 +198,6 @@ public abstract class ChangeEmail extends OutgoingEmail {
     return r.toString();
   }
 
-  private void openFooter() {
-    if (!inFooter) {
-      inFooter = true;
-      appendText("-- \n");
-    }
-  }
-
   /** Format the sender's "cover letter", {@link #getCoverLetter()}. */
   protected void formatCoverLetter() {
     final String cover = getCoverLetter();

gerrit-server/src/main/java/com/google/gerrit/server/mail/OutgoingEmail.java

@@ -168,7 +168,7 @@ public abstract class OutgoingEmail {
     }
   }
 
-  protected String getGerritHost() {
+  public String getGerritHost() {
     if (getGerritUrl() != null) {
       try {
         return new URL(getGerritUrl()).getHost();
@@ -194,7 +194,7 @@ public abstract class OutgoingEmail {
     return null;
   }
 
-  protected String getGerritUrl() {
+  public String getGerritUrl() {
     return args.urlProvider.get();
   }
 
@@ -237,7 +237,7 @@ public abstract class OutgoingEmail {
     return name;
   }
 
-  protected String getNameEmailFor(Account.Id accountId) {
+  public String getNameEmailFor(Account.Id accountId) {
     AccountState who = args.accountCache.get(accountId);
     String name = who.getAccount().getFullName();
     String email = who.getAccount().getPreferredEmail();

gerrit-server/src/main/resources/com/google/gerrit/server/mail/ChangeFooter.vm

@@ -0,0 +1,49 @@
+## Copyright (C) 2010 The Android Open Source Project
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+##
+## Template Type:
+## -------------
+## This is a velocity mail template, see: http://velocity.apache.org and the
+## gerrit-docs:config-mail.txt for more info on modifying gerrit mail templates.
+##
+## Template File Names and extensions:
+## ----------------------------------
+## Gerrit will use templates ending in ".vm" but will ignore templates ending
+## in ".vm.example".  If a .vm template does not exist, the default internal
+## gerrit template which is the same as the .vm.example will be used.  If you
+## want to override the default template, copy the .vm.exmaple file to a .vm
+## file and edit it appropriately.
+##
+## This Template:
+## --------------
+## The ChangeFooter.vm template will determine the contents of the footer
+## text that will be appended to ALL emails related to changes.
+##
+--
+#if ($email.changeUrl)
+To view, visit $email.changeUrl
+#set ($notblank = 1)
+#end
+#if ($email.settingsUrl)
+To unsubscribe, visit $email.settingsUrl
+#set ($notblank = 1)
+#end
+#if ($notblank == 1)
+
+#end
+Gerrit-MessageType: $messageClass
+Gerrit-Project: $projectName
+Gerrit-Branch: $branch.shortName
+Gerrit-Owner: $email.getNameEmailFor($change.owner)