Merge changes Iab3de63e,I83085033 * changes: Add REST API endpoints to mark a change as muted/unmuted New mute-label allows for temporarily unhighlighting changes in dashboard

diff --git a/Documentation/dev-stars.txt b/Documentation/dev-stars.txt
index 553ac5b..1fb871a 100644
--- a/Documentation/dev-stars.txt
+++ b/Documentation/dev-stars.txt

@@ -61,6 +61,19 @@
 
 The ignore star is represented by the special star label 'ignore'.
 
+[[mute-star]]
+== Mute Star
+
+If the "mute/<patchset_id>"-star is set by a user, and <patchset_id>
+matches the current patch set, the change is always reported as "reviewed"
+in the ChangeInfo.
+
+This allows users to "de-highlight" changes in a dashboard until a new
+patchset has been uploaded.
+
+The ChangeInfo muted-field will show if the change is currently in a
+mute state.
+
 [[query-stars]]
 == Query Stars
 

diff --git a/Documentation/rest-api-changes.txt b/Documentation/rest-api-changes.txt
index 5cddf9c..3c3699c 100644
--- a/Documentation/rest-api-changes.txt
+++ b/Documentation/rest-api-changes.txt

@@ -2175,6 +2175,40 @@
   PUT /changes/myProject~master~I8473b95934b5732ac55d26311a706c9c2bde9940/unignore HTTP/1.0
 ----
 
+[[mute]]
+=== Mute
+--
+'PUT /changes/link:#change-id[\{change-id\}]/mute'
+--
+
+Marks a change as muted.
+
+This allows users to "de-highlight" changes in their dashboard until a new
+patch set is uploaded.
+
+This differs from the link:#ignore[ignore] endpoint, which will mute
+emails and hide the change from dashboard completely until it is
+link:#unignore[unignored] again.
+
+
+.Request
+----
+  PUT /changes/myProject~master~I8473b95934b5732ac55d26311a706c9c2bde9940/mute HTTP/1.0
+----
+
+[[unmute]]
+=== Unmute
+--
+'PUT /changes/link:#change-id[\{change-id\}]/unmute'
+--
+
+Unmutes a change.
+
+.Request
+----
+  PUT /changes/myProject~master~I8473b95934b5732ac55d26311a706c9c2bde9940/unmute HTTP/1.0
+----
+
 [[edit-endpoints]]
 == Change Edit Endpoints
 

diff --git a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/api/changes/ChangeApi.java b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/api/changes/ChangeApi.java
index 2d086d3..83d36b1 100644
--- a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/api/changes/ChangeApi.java
+++ b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/api/changes/ChangeApi.java

@@ -95,6 +95,13 @@
   void ignore(boolean ignore) throws RestApiException;
 
   /**
+   * Mute or un-mute this change.
+   *
+   * @param mute mute the change if true
+   */
+  void mute(boolean mute) throws RestApiException;
+
+  /**
    * Create a new change that reverts this change.
    *
    * @see Changes#id(int)
@@ -495,5 +502,10 @@
     public void ignore(boolean ignore) {
       throw new NotImplementedException();
     }
+
+    @Override
+    public void mute(boolean mute) {
+      throw new NotImplementedException();
+    }
   }
 }

diff --git a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/common/ChangeInfo.java b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/common/ChangeInfo.java
index 2cb8384..49e4a05 100644
--- a/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/common/ChangeInfo.java
+++ b/gerrit-extension-api/src/main/java/com/google/gerrit/extensions/common/ChangeInfo.java

@@ -36,6 +36,7 @@
   public Timestamp updated;
   public Timestamp submitted;
   public Boolean starred;
+  public Boolean muted;
   public Collection<String> stars;
   public Boolean reviewed;
   public SubmitType submitType;

diff --git a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/ChangeInfo.java b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/ChangeInfo.java
index 3cac62c..abcfe31 100644
--- a/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/ChangeInfo.java
+++ b/gerrit-gwtui-common/src/main/java/com/google/gerrit/client/info/ChangeInfo.java

@@ -136,6 +136,8 @@
 
   public final native boolean starred() /*-{ return this.starred ? true : false; }-*/;
 
+  public final native boolean muted() /*-{ return this.muted ? true : false; }-*/;
+
   public final native boolean reviewed() /*-{ return this.reviewed ? true : false; }-*/;
 
   public final native boolean isPrivate() /*-{ return this.is_private ? true : false; }-*/;

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/StarredChangesUtil.java b/gerrit-server/src/main/java/com/google/gerrit/server/StarredChangesUtil.java
index 80f84bd..cbaae1e 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/StarredChangesUtil.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/StarredChangesUtil.java

@@ -147,6 +147,7 @@
 
   public static final String DEFAULT_LABEL = "star";
   public static final String IGNORE_LABEL = "ignore";
+  public static final String MUTE_LABEL = "mute";
   public static final ImmutableSortedSet<String> DEFAULT_LABELS =
       ImmutableSortedSet.of(DEFAULT_LABEL);
 
@@ -355,6 +356,34 @@
     return byChange(changeId, IGNORE_LABEL).contains(accountId);
   }
 
+  private static String getMuteLabel(Change change) {
+    return MUTE_LABEL + "/" + change.currentPatchSetId().get();
+  }
+
+  public void mute(Account.Id accountId, Project.NameKey project, Change change)
+      throws OrmException {
+    star(
+        accountId,
+        project,
+        change.getId(),
+        ImmutableSet.of(getMuteLabel(change)),
+        ImmutableSet.of());
+  }
+
+  public void unmute(Account.Id accountId, Project.NameKey project, Change change)
+      throws OrmException {
+    star(
+        accountId,
+        project,
+        change.getId(),
+        ImmutableSet.of(),
+        ImmutableSet.of(getMuteLabel(change)));
+  }
+
+  public boolean isMutedBy(Change change, Account.Id accountId) throws OrmException {
+    return byChange(change.getId(), getMuteLabel(change)).contains(accountId);
+  }
+
   private static StarRef readLabels(Repository repo, String refName) throws IOException {
     Ref ref = repo.exactRef(refName);
     if (ref == null) {

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/api/changes/ChangeApiImpl.java b/gerrit-server/src/main/java/com/google/gerrit/server/api/changes/ChangeApiImpl.java
index edca48f..c6fc67e 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/api/changes/ChangeApiImpl.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/api/changes/ChangeApiImpl.java

@@ -63,6 +63,7 @@
 import com.google.gerrit.server.change.ListChangeDrafts;
 import com.google.gerrit.server.change.ListChangeRobotComments;
 import com.google.gerrit.server.change.Move;
+import com.google.gerrit.server.change.Mute;
 import com.google.gerrit.server.change.PostHashtags;
 import com.google.gerrit.server.change.PostReviewers;
 import com.google.gerrit.server.change.PublishDraftPatchSet;
@@ -77,6 +78,7 @@
 import com.google.gerrit.server.change.SubmittedTogether;
 import com.google.gerrit.server.change.SuggestChangeReviewers;
 import com.google.gerrit.server.change.Unignore;
+import com.google.gerrit.server.change.Unmute;
 import com.google.gerrit.server.permissions.PermissionBackendException;
 import com.google.gerrit.server.project.InvalidChangeOperationException;
 import com.google.gerrit.server.update.UpdateException;
@@ -132,6 +134,8 @@
   private final DeletePrivate deletePrivate;
   private final Ignore ignore;
   private final Unignore unignore;
+  private final Mute mute;
+  private final Unmute unmute;
 
   @Inject
   ChangeApiImpl(
@@ -171,6 +175,8 @@
       DeletePrivate deletePrivate,
       Ignore ignore,
       Unignore unignore,
+      Mute mute,
+      Unmute unmute,
       @Assisted ChangeResource change) {
     this.changeApi = changeApi;
     this.revert = revert;
@@ -208,6 +214,8 @@
     this.deletePrivate = deletePrivate;
     this.ignore = ignore;
     this.unignore = unignore;
+    this.mute = mute;
+    this.unmute = unmute;
     this.change = change;
   }
 
@@ -603,4 +611,13 @@
       unignore.apply(change, new Unignore.Input());
     }
   }
+
+  @Override
+  public void mute(boolean mute) throws RestApiException {
+    if (mute) {
+      this.mute.apply(change, new Mute.Input());
+    } else {
+      unmute.apply(change, new Unmute.Input());
+    }
+  }
 }

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeJson.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeJson.java
index 4724ea1..4dc7d36 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeJson.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeJson.java

@@ -514,6 +514,11 @@
     if (user.isIdentifiedUser()) {
       Collection<String> stars = cd.stars(user.getAccountId());
       out.starred = stars.contains(StarredChangesUtil.DEFAULT_LABEL) ? true : null;
+      out.muted =
+          stars.contains(
+                  StarredChangesUtil.MUTE_LABEL + "/" + cd.currentPatchSet().getPatchSetId())
+              ? true
+              : null;
       if (!stars.isEmpty()) {
         out.stars = stars;
       }
@@ -521,7 +526,11 @@
 
     if (in.getStatus().isOpen() && has(REVIEWED) && user.isIdentifiedUser()) {
       Account.Id accountId = user.getAccountId();
-      out.reviewed = cd.reviewedBy().contains(accountId) ? true : null;
+      if (out.muted != null) {
+        out.reviewed = true;
+      } else {
+        out.reviewed = cd.reviewedBy().contains(accountId) ? true : null;
+      }
     }
 
     out.labels = labelsFor(perm, ctl, cd, has(LABELS), has(DETAILED_LABELS));

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/Module.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/Module.java
index f78f8a8b..5aee90c 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/Module.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/Module.java

@@ -89,6 +89,8 @@
     delete(CHANGE_KIND, "private").to(DeletePrivate.class);
     put(CHANGE_KIND, "ignore").to(Ignore.class);
     put(CHANGE_KIND, "unignore").to(Unignore.class);
+    put(CHANGE_KIND, "mute").to(Mute.class);
+    put(CHANGE_KIND, "unmute").to(Unmute.class);
 
     post(CHANGE_KIND, "reviewers").to(PostReviewers.class);
     get(CHANGE_KIND, "suggest_reviewers").to(SuggestChangeReviewers.class);

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/Mute.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/Mute.java
new file mode 100644
index 0000000..d14fec8
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/Mute.java

@@ -0,0 +1,85 @@
+// Copyright (C) 2017 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.
+
+package com.google.gerrit.server.change;
+
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestApiException;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.extensions.webui.UiAction;
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.server.IdentifiedUser;
+import com.google.gerrit.server.StarredChangesUtil;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@Singleton
+public class Mute implements RestModifyView<ChangeResource, Mute.Input>, UiAction<ChangeResource> {
+  private static final Logger log = LoggerFactory.getLogger(Mute.class);
+
+  public static class Input {}
+
+  private final Provider<IdentifiedUser> self;
+  private final StarredChangesUtil stars;
+
+  @Inject
+  Mute(Provider<IdentifiedUser> self, StarredChangesUtil stars) {
+    this.self = self;
+    this.stars = stars;
+  }
+
+  @Override
+  public Description getDescription(ChangeResource rsrc) {
+    return new UiAction.Description()
+        .setLabel("Mute")
+        .setTitle("Mute the change to unhighlight it in the dashboard")
+        .setVisible(!rsrc.isUserOwner() && isMuteable(rsrc.getChange()));
+  }
+
+  @Override
+  public Response<String> apply(ChangeResource rsrc, Input input) throws RestApiException {
+    try {
+      if (rsrc.isUserOwner() || isMuted(rsrc.getChange())) {
+        // early exit for own changes and already muted changes
+        return Response.ok("");
+      }
+      stars.mute(self.get().getAccountId(), rsrc.getProject(), rsrc.getChange());
+    } catch (OrmException e) {
+      throw new RestApiException("failed to mute change", e);
+    }
+    return Response.ok("");
+  }
+
+  private boolean isMuted(Change change) {
+    try {
+      return stars.isMutedBy(change, self.get().getAccountId());
+    } catch (OrmException e) {
+      log.error("failed to check muted star", e);
+    }
+    return false;
+  }
+
+  private boolean isMuteable(Change change) {
+    try {
+      return !isMuted(change) && !stars.isIgnoredBy(change.getId(), self.get().getAccountId());
+    } catch (OrmException e) {
+      log.error("failed to check ignored star", e);
+    }
+    return false;
+  }
+}

diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/Unmute.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/Unmute.java
new file mode 100644
index 0000000..49b41cb
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/Unmute.java

@@ -0,0 +1,86 @@
+// Copyright (C) 2017 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.
+
+package com.google.gerrit.server.change;
+
+import com.google.gerrit.extensions.restapi.Response;
+import com.google.gerrit.extensions.restapi.RestApiException;
+import com.google.gerrit.extensions.restapi.RestModifyView;
+import com.google.gerrit.extensions.webui.UiAction;
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.server.IdentifiedUser;
+import com.google.gerrit.server.StarredChangesUtil;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@Singleton
+public class Unmute
+    implements RestModifyView<ChangeResource, Unmute.Input>, UiAction<ChangeResource> {
+  private static final Logger log = LoggerFactory.getLogger(Unmute.class);
+
+  public static class Input {}
+
+  private final Provider<IdentifiedUser> self;
+  private final StarredChangesUtil stars;
+
+  @Inject
+  Unmute(Provider<IdentifiedUser> self, StarredChangesUtil stars) {
+    this.self = self;
+    this.stars = stars;
+  }
+
+  @Override
+  public Description getDescription(ChangeResource rsrc) {
+    return new UiAction.Description()
+        .setLabel("Unmute")
+        .setTitle("Unmute the change")
+        .setVisible(!rsrc.isUserOwner() && isUnMuteable(rsrc.getChange()));
+  }
+
+  @Override
+  public Response<String> apply(ChangeResource rsrc, Input input) throws RestApiException {
+    try {
+      if (rsrc.isUserOwner() || !isMuted(rsrc.getChange())) {
+        // early exit for own changes and not muted changes
+        return Response.ok("");
+      }
+      stars.unmute(self.get().getAccountId(), rsrc.getProject(), rsrc.getChange());
+    } catch (OrmException e) {
+      throw new RestApiException("failed to unmute change", e);
+    }
+    return Response.ok("");
+  }
+
+  private boolean isMuted(Change change) {
+    try {
+      return stars.isMutedBy(change, self.get().getAccountId());
+    } catch (OrmException e) {
+      log.error("failed to check muted star", e);
+    }
+    return false;
+  }
+
+  private boolean isUnMuteable(Change change) {
+    try {
+      return isMuted(change) && !stars.isIgnoredBy(change.getId(), self.get().getAccountId());
+    } catch (OrmException e) {
+      log.error("failed to check ignored star", e);
+    }
+    return false;
+  }
+}