Add support for editing Gists.

Fixes issue hub4j#466

NOTE: I could not get the deleteFile() method to work. Possibly an
issue with the underlying API itself.

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

@@ -6,6 +6,7 @@
 import java.net.URL;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
@@ -159,6 +160,27 @@ public void delete() throws IOException {
  new Requester(root).method("DELETE").to("/gists/" + id);
  }
 
+ private String getApiRoute() {
+ return "/gists/" + id;
+ }
+
+ private void edit(String key, Object value) throws IOException {
+ new Requester(root)._with(key, value).method("PATCH").to(getApiRoute());
+ }
+
+ public void setDescription(String value) throws IOException {
+ edit("description",value);
+ }
+
+ // NOTE: This does NOT work, even when using CURL!
+ // I suspect it's a bug in the API itself...
+ // I should raise a ticket with Gibhub...
+ public void deleteFile(String fileName) throws IOException {
+ LinkedHashMap<String,Object> files = new LinkedHashMap<String, Object>();
+ files.put(fileName, Collections.singletonMap("filename", null));
+ edit("files",files);
+ }
+
  @Override
  public boolean equals(Object o) {
  if (this == o) return true;