Remove support for refs/publish/

Support for drafts has been completely removed in Gerrit 2.15
(released in March 2018), and as a side effect refs/publish/ has
become deprecated.

Change Ifcd35dfdc (2017-10-09) introduced a deprecation warning.

The last known script user of this feature (git-review) was migrated
in https://review.openstack.org/#/c/584607/ , released in 1.27.1.0a1

Change-Id: Iac8adf5caf5186837ff11bcd0842b077a5fc33fb

java/com/google/gerrit/server/git/receive/ReceiveCommits.java

@@ -611,7 +611,6 @@ class ReceiveCommits {
       newProgress.end();
       replaceProgress.end();
       queueSuccessMessages(newChanges);
-      refsPublishDeprecationWarning();
 
       logger.atFine().log(
           "Command results: %s",
@@ -619,13 +618,6 @@ class ReceiveCommits {
     }
   }
 
-  private void refsPublishDeprecationWarning() {
-    // TODO(xchangcheng): remove after migrating tools which are using this magic branch.
-    if (magicBranch != null && magicBranch.publish) {
-      addMessage("Pushing to refs/publish/* is deprecated, use refs/for/* instead.");
-    }
-  }
-
   private void sendErrorMessages() {
     if (!errors.isEmpty()) {
       logger.atFine().log("Handling error conditions: %s", errors.keySet());
@@ -1362,8 +1354,6 @@ class ReceiveCommits {
                 + "for new changes and '--edit' for existing changes")
     boolean draft;
 
-    boolean publish;
-
     @Option(name = "--private", usage = "mark new/updated change as private")
     boolean isPrivate;
 
@@ -1501,7 +1491,6 @@ class ReceiveCommits {
       this.deprecatedTopicSeen = false;
       this.cmd = cmd;
       this.draft = cmd.getRefName().startsWith(MagicBranch.NEW_DRAFT_CHANGE);
-      this.publish = cmd.getRefName().startsWith(MagicBranch.NEW_PUBLISH_CHANGE);
       this.labelTypes = labelTypes;
       this.notesMigration = notesMigration;
       GeneralPreferencesInfo prefs = user.state().getGeneralPreferences();

java/com/google/gerrit/server/util/MagicBranch.java

@@ -28,25 +28,19 @@ public final class MagicBranch {
   public static final String NEW_CHANGE = "refs/for/";
   // TODO(xchangcheng): remove after 'repo' supports private/wip changes.
   public static final String NEW_DRAFT_CHANGE = "refs/drafts/";
-  // TODO(xchangcheng): remove after migrating tools which are using this magic branch.
-  public static final String NEW_PUBLISH_CHANGE = "refs/publish/";
 
   /** Extracts the destination from a ref name */
   public static String getDestBranchName(String refName) {
     String magicBranch = NEW_CHANGE;
     if (refName.startsWith(NEW_DRAFT_CHANGE)) {
       magicBranch = NEW_DRAFT_CHANGE;
-    } else if (refName.startsWith(NEW_PUBLISH_CHANGE)) {
-      magicBranch = NEW_PUBLISH_CHANGE;
     }
     return refName.substring(magicBranch.length());
   }
 
   /** Checks if the supplied ref name is a magic branch */
   public static boolean isMagicBranch(String refName) {
-    return refName.startsWith(NEW_DRAFT_CHANGE)
-        || refName.startsWith(NEW_PUBLISH_CHANGE)
-        || refName.startsWith(NEW_CHANGE);
+    return refName.startsWith(NEW_DRAFT_CHANGE) || refName.startsWith(NEW_CHANGE);
   }
 
   /** Returns the ref name prefix for a magic branch, {@code null} if the branch is not magic */
@@ -54,9 +48,6 @@ public final class MagicBranch {
     if (refName.startsWith(NEW_DRAFT_CHANGE)) {
       return NEW_DRAFT_CHANGE;
     }
-    if (refName.startsWith(NEW_PUBLISH_CHANGE)) {
-      return NEW_PUBLISH_CHANGE;
-    }
     if (refName.startsWith(NEW_CHANGE)) {
       return NEW_CHANGE;
     }
@@ -80,11 +71,6 @@ public final class MagicBranch {
     if (result != Capable.OK) {
       return result;
     }
-    result = checkMagicBranchRef(NEW_PUBLISH_CHANGE, repo, project);
-    if (result != Capable.OK) {
-      return result;
-    }
-
     return Capable.OK;
   }
 

javatests/com/google/gerrit/acceptance/git/AbstractPushForReview.java

@@ -2297,16 +2297,6 @@ public abstract class AbstractPushForReview extends AbstractDaemonTest {
         .isEqualTo(Iterables.getLast(commits).name());
   }
 
-  @Test
-  public void pushToPublishMagicBranchIsAllowed() throws Exception {
-    // Push to "refs/publish/*" will be a synonym of "refs/for/*".
-    createChange("refs/publish/master");
-    PushOneCommit.Result result = pushTo("refs/publish/master");
-    result.assertOkStatus();
-    assertThat(result.getMessage())
-        .endsWith("Pushing to refs/publish/* is deprecated, use refs/for/* instead.\n");
-  }
-
   @Test
   public void pushNoteDbRef() throws Exception {
     String ref = "refs/changes/34/1234/meta";