Convert remaining email templates to Soy

Building on a change that converted templates used by subclasses of
ReplyToChangeSender, convert the remaining email templates. Add a new
Soy template datum for abbreviated change subjects, replicating a string
manipulation that was formerly implemented inside the ChangeSubject.vm
template.

Feature: Issue 4345
Change-Id: I1bc5574a45ea60bf74c945a5ed81fe2ea7536e7d

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

@@ -100,17 +100,17 @@ public void run() throws Exception {
     chmod(0700, site.tmp_dir);
 
     extractMailExample("Abandoned.soy");
-    extractMailExample("AddKey.vm");
-    extractMailExample("ChangeFooter.vm");
-    extractMailExample("ChangeSubject.vm");
+    extractMailExample("AddKey.soy");
+    extractMailExample("ChangeFooter.soy");
+    extractMailExample("ChangeSubject.soy");
     extractMailExample("Comment.soy");
     extractMailExample("CommentFooter.soy");
     extractMailExample("DeleteReviewer.soy");
     extractMailExample("DeleteVote.soy");
     extractMailExample("Footer.soy");
     extractMailExample("Merged.soy");
-    extractMailExample("NewChange.vm");
-    extractMailExample("RegisterNewEmail.vm");
+    extractMailExample("NewChange.soy");
+    extractMailExample("RegisterNewEmail.soy");
     extractMailExample("ReplacePatchSet.soy");
     extractMailExample("Restored.soy");
     extractMailExample("Reverted.soy");

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

@@ -80,7 +80,7 @@ protected boolean shouldSendMessage() {
 
   @Override
   protected void format() throws EmailException {
-    appendText(velocifyFile("AddKey.vm"));
+    appendText(textTemplate("AddKey"));
   }
 
   public String getEmail() {

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

@@ -121,7 +121,7 @@ public void setChangeMessage(String cm, Timestamp t) {
   @Override
   protected void format() throws EmailException {
     formatChange();
-    appendText(velocifyFile("ChangeFooter.vm"));
+    appendText(textTemplate("ChangeFooter"));
     try {
       TreeSet<String> names = new TreeSet<>();
       for (Account.Id who : changeData.reviewers().all()) {
@@ -200,7 +200,7 @@ private void setCommitIdHeader() {
   }
 
   private void setChangeSubjectHeader() throws EmailException {
-    setHeader("Subject", velocifyFile("ChangeSubject.vm"));
+    setHeader("Subject", textTemplate("ChangeSubject"));
   }
 
   /** Get a link to the change; null if the server doesn't know its own address. */
@@ -455,6 +455,16 @@ protected void setupSoyContext() {
     changeData.put("ownerEmail", getNameEmailFor(change.getOwner()));
     soyContext.put("change", changeData);
 
+    String subject = change.getSubject();
+    changeData.put("subject", subject);
+    // shortSubject is the subject limited to 63 characters, with an ellipsis if
+    // it exceeds that.
+    if (subject.length() < 64) {
+      changeData.put("shortSubject", subject);
+    } else {
+      changeData.put("shortSubject", subject.substring(0, 60) + "...");
+    }
+
     Map<String, Object> patchSetData = new HashMap<>();
     patchSetData.put("patchSetId", patchSet.getPatchSetId());
     patchSetData.put("refName", patchSet.getRefName());

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

@@ -37,12 +37,17 @@ public class MailSoyTofuProvider implements Provider<SoyTofu> {
   // Note: will fail to construct the tofu object if this array is empty.
   private static final String[] TEMPLATES = {
     "Abandoned.soy",
+    "AddKey.soy",
+    "ChangeSubject.soy",
+    "ChangeFooter.soy",
     "Comment.soy",
     "CommentFooter.soy",
     "DeleteReviewer.soy",
     "DeleteVote.soy",
     "Footer.soy",
     "Merged.soy",
+    "NewChange.soy",
+    "RegisterNewEmail.soy",
     "ReplacePatchSet.soy",
     "Restored.soy",
     "Reverted.soy"

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

@@ -67,7 +67,7 @@ protected void init() throws EmailException {
 
   @Override
   protected void formatChange() throws EmailException {
-    appendText(velocifyFile("NewChange.vm"));
+    appendText(textTemplate("NewChange"));
   }
 
   public List<String> getReviewerNames() {

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

@@ -51,7 +51,7 @@ protected void init() throws EmailException {
 
   @Override
   protected void format() throws EmailException {
-    appendText(velocifyFile("RegisterNewEmail.vm"));
+    appendText(textTemplate("RegisterNewEmail"));
   }
 
   public String getUserNameEmail() {

gerrit-server/src/main/resources/com/google/gerrit/server/mail/AddKey.soy

@@ -0,0 +1,71 @@
+/**
+ * Copyright (C) 2016 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.
+ */
+
+{namespace com.google.gerrit.server.mail.template}
+
+/**
+ * The .AddKey template will determine the contents of the email related to
+ * adding a new SSH or GPG key to an account.
+ * @param email
+ */
+{template .AddKey autoescape="strict" kind="text"}
+  One or more new {$email.keyType} keys have been added to Gerrit Code Review at
+  {sp}{$email.gerritHost}:
+
+  {\n}
+  {\n}
+
+  {if $email.sshKey}
+    {$email.sshKey}
+  {elseif $email.gpgKeys}
+    {$email.gpgKeys}
+  {/if}
+
+  {\n}
+  {\n}
+
+  If this is not expected, please contact your Gerrit Administrators
+  immediately.
+
+  {\n}
+  {\n}
+
+  You can also manage your {$email.keyType} keys by visiting
+  {\n}
+  {if $email.sshKey}
+    {$email.gerritUrl}#/settings/ssh-keys
+  {elseif $email.gpgKeys}
+    {$email.gerritUrl}#/settings/gpg-keys
+  {/if}
+  {\n}
+  {if $email.userNameEmail}
+    (while signed in as {$email.userNameEmail})
+  {else}
+    (while signed in as {$email.email})
+  {/if}
+
+  {\n}
+  {\n}
+
+  If clicking the link above does not work, copy and paste the URL in a new
+  browser window instead.
+
+  {\n}
+  {\n}
+
+  This is a send-only email address.  Replies to this message will not be read
+  or answered.
+{/template}

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

@@ -0,0 +1,52 @@
+/**
+ * Copyright (C) 2016 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.
+ */
+
+{namespace com.google.gerrit.server.mail.template}
+
+/**
+ * The .ChangeFooter template will determine the contents of the footer text
+ * that will be appended to ALL emails related to changes.
+ * @param branch
+ * @param change
+ * @param changeId
+ * @param email
+ * @param messageClass
+ * @param patchSet
+ * @param projectName
+ */
+{template .ChangeFooter autoescape="strict" kind="text"}
+  --{sp}
+  {\n}
+
+  {if $email.changeUrl}
+    To view, visit {$email.changeUrl}{\n}
+  {/if}
+
+  {if $email.settingsUrl}
+    To unsubscribe, visit {$email.settingsUrl}{\n}
+  {/if}
+
+  {if $email.changeUrl or $email.settingsUrl}
+    {\n}
+  {/if}
+
+  Gerrit-MessageType: {$messageClass}{\n}
+  Gerrit-Change-Id: {$changeId}{\n}
+  Gerrit-PatchSet: {$patchSet.patchSetId}{\n}
+  Gerrit-Project: {$projectName}{\n}
+  Gerrit-Branch: {$branch.shortName}{\n}
+  Gerrit-Owner: {$change.ownerEmail}{\n}
+{/template}

gerrit-server/src/main/resources/com/google/gerrit/server/mail/ChangeSubject.soy

@@ -0,0 +1,28 @@
+/**
+ * Copyright (C) 2016 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.
+ */
+
+{namespace com.google.gerrit.server.mail.template}
+
+/**
+ * The .ChangeSubject template will determine the contents of the email subject
+ * line for ALL emails related to changes.
+ * @param branch
+ * @param change
+ * @param shortProjectName
+ */
+{template .ChangeSubject autoescape="strict" kind="text"}
+  Change in {$shortProjectName}[{$branch.shortName}]: {$change.shortSubject}
+{/template}