pull_request action "edited": changes

src/main/java/org/kohsuke/github/GHEventPayload.java

@@ -360,6 +360,7 @@ public static class PullRequest extends GHEventPayload {
         private int number;
         private GHPullRequest pullRequest;
         private GHLabel label;
+        private GHPullRequestChanges changes;
 
         /**
          * Gets number.
@@ -389,6 +390,15 @@ public GHLabel getLabel() {
             return label;
         }
 
+        /**
+         * Get changes (for action="edited")
+         *
+         * @return changes
+         */
+        public GHPullRequestChanges getChanges() {
+            return changes;
+        }
+
         @Override
         void wrapUp(GitHub root) {
             super.wrapUp(root);

src/main/java/org/kohsuke/github/GHPullRequestChanges.java

@@ -0,0 +1,86 @@
+package org.kohsuke.github;
+
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
+/**
+ * Wrapper to define changed fields on pull_request action="edited"
+ *
+ * @see GHEventPayload.PullRequest
+ */
+@SuppressFBWarnings("UWF_UNWRITTEN_FIELD")
+public class GHPullRequestChanges {
+
+    private GHCommitPointer base;
+    private GHFrom title;
+    private GHFrom body;
+
+    /**
+     * Old target branch for pull request.
+     *
+     * @return old target branch info (or null if not changed)
+     */
+    public GHCommitPointer getBase() {
+        return base;
+    }
+
+    /**
+     * Old pull request title.
+     *
+     * @return old pull request title (or null if not changed)
+     */
+    public GHFrom getTitle() {
+        return title;
+    }
+
+    /**
+     * Old pull request body.
+     *
+     * @return old pull request body (or null if not changed)
+     */
+    public GHFrom getBody() {
+        return body;
+    }
+
+    /**
+     * @see org.kohsuke.github.GHCommitPointer
+     */
+    public static class GHCommitPointer {
+        private GHFrom ref;
+        private GHFrom sha;
+
+        /**
+         * Named ref to the commit. This (from value) appears to be a "short ref" that doesn't include "refs/heads/"
+         * portion.
+         *
+         * @return the ref
+         */
+        public GHFrom getRef() {
+            return ref;
+        }
+
+        /**
+         * SHA1 of the commit.
+         *
+         * @return sha
+         */
+        public GHFrom getSha() {
+            return sha;
+        }
+    }
+
+    /**
+     * Wrapper for changed values.
+     */
+    public static class GHFrom {
+        private String from;
+
+        /**
+         * Previous value that was changed.
+         *
+         * @return previous value
+         */
+        public String getFrom() {
+            return from;
+        }
+    }
+}

src/test/java/org/kohsuke/github/GHEventPayloadTest.java

@@ -214,6 +214,33 @@ public void pull_request() throws Exception {
         assertThat(event.getSender().getLogin(), is("baxterthehacker"));
     }
 
+    @Test
+    public void pull_request_edited_base() throws Exception {
+        GHEventPayload.PullRequest event = GitHub.offline()
+                .parseEventPayload(payload.asReader(), GHEventPayload.PullRequest.class);
+
+        assertThat(event.getAction(), is("edited"));
+        assertThat(event.getChanges().getTitle(), nullValue());
+        assertThat(event.getPullRequest().getTitle(), is("REST-276 - easy-random"));
+        assertThat(event.getChanges().getBase().getRef().getFrom(), is("develop"));
+        assertThat(event.getChanges().getBase().getSha().getFrom(), is("4b0f3b9fd582b071652ccfccd10bfc8c143cff96"));
+        assertThat(event.getPullRequest().getBody(), startsWith("**JIRA Ticket URL:**"));
+        assertThat(event.getChanges().getBody(), nullValue());
+    }
+
+    @Test
+    public void pull_request_edited_title() throws Exception {
+        GHEventPayload.PullRequest event = GitHub.offline()
+                .parseEventPayload(payload.asReader(), GHEventPayload.PullRequest.class);
+
+        assertThat(event.getAction(), is("edited"));
+        assertThat(event.getChanges().getTitle().getFrom(), is("REST-276 - easy-random"));
+        assertThat(event.getPullRequest().getTitle(), is("REST-276 - easy-random 4.3.0"));
+        assertThat(event.getChanges().getBase(), nullValue());
+        assertThat(event.getPullRequest().getBody(), startsWith("**JIRA Ticket URL:**"));
+        assertThat(event.getChanges().getBody(), nullValue());
+    }
+
     @Test
     public void pull_request_labeled() throws Exception {
         GHEventPayload.PullRequest event = GitHub.offline()