Merge changes from topic "proto-gen-binary"

* changes:
  Add test for Java API built from generated reviewdb.proto
  ProtoGenHeader.txt: Remove java_api_version option
  Move ProtoGen out of gerrit.war
  Add missing runtime_deps to gwtorm

java/com/google/gerrit/proto/BUILD

@@ -0,0 +1,14 @@
+java_binary(
+    name = "ProtoGen",
+    srcs = ["ProtoGen.java"],
+    resource_strip_prefix = "resources",
+    resources = ["//resources/com/google/gerrit/proto"],
+    visibility = ["//proto:__pkg__"],
+    deps = [
+        "//java/com/google/gerrit/reviewdb:server",
+        "//lib:args4j",
+        "//lib:guava",
+        "//lib:gwtorm",
+        "//lib/jgit/org.eclipse.jgit:jgit",
+    ],
+)

java/com/google/gerrit/proto/ProtoGen.java

@@ -12,11 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.google.gerrit.pgm;
+package com.google.gerrit.proto;
 
+import static com.google.common.base.Preconditions.checkState;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
-import com.google.gerrit.pgm.util.AbstractProgram;
 import com.google.gerrit.reviewdb.server.ReviewDb;
 import com.google.gwtorm.schema.java.JavaSchemaModel;
 import java.io.BufferedWriter;
@@ -28,23 +28,37 @@ import java.io.PrintWriter;
 import java.nio.ByteBuffer;
 import org.eclipse.jgit.internal.storage.file.LockFile;
 import org.eclipse.jgit.util.IO;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
 import org.kohsuke.args4j.Option;
 
-public class ProtoGen extends AbstractProgram {
+public class ProtoGen {
   @Option(
-      name = "--output",
-      aliases = {"-o"},
-      required = true,
-      metaVar = "FILE",
-      usage = "File to write .proto into")
+    name = "--output",
+    aliases = {"-o"},
+    required = true,
+    metaVar = "FILE",
+    usage = "File to write .proto into"
+  )
   private File file;
 
-  @Override
-  public int run() throws Exception {
-    LockFile lock = new LockFile(file.getAbsoluteFile());
-    if (!lock.lock()) {
-      throw die("Cannot lock " + file);
+  public static void main(String[] argv) throws Exception {
+    System.exit(new ProtoGen().run(argv));
+  }
+
+  private int run(String[] argv) throws Exception {
+    CmdLineParser parser = new CmdLineParser(this);
+    try {
+      parser.parseArgument(argv);
+    } catch (CmdLineException e) {
+      System.err.println(e.getMessage());
+      System.err.println(getClass().getSimpleName() + " -o output.proto");
+      parser.printUsage(System.err);
+      return 1;
     }
+
+    LockFile lock = new LockFile(file.getAbsoluteFile());
+    checkState(lock.lock(), "cannot lock %s", file);
     try {
       JavaSchemaModel jsm = new JavaSchemaModel(ReviewDb.class);
       try (OutputStream o = lock.getOutputStream();
@@ -61,9 +75,7 @@ public class ProtoGen extends AbstractProgram {
         jsm.generateProto(out);
         out.flush();
       }
-      if (!lock.commit()) {
-        throw die("Could not write to " + file);
-      }
+      checkState(lock.commit(), "Could not write to %s", file);
     } finally {
       lock.unlock();
     }

javatests/com/google/gerrit/proto/BUILD

@@ -0,0 +1,17 @@
+load("//tools/bzl:junit.bzl", "junit_tests")
+
+junit_tests(
+    name = "proto_tests",
+    srcs = glob(["*.java"]),
+    deps = [
+        "//lib/truth:truth-proto-extension",
+        "//proto:reviewdb_java_proto",
+
+        # TODO(dborowitz): These are already runtime_deps of
+        # truth-proto-extension, but either omitting them or adding them as
+        # runtime_deps to this target fails with:
+        #   class file for com.google.common.collect.Multimap not found
+        "//lib:guava",
+        "//lib/truth",
+    ],
+)

javatests/com/google/gerrit/proto/ReviewDbProtoTest.java

@@ -0,0 +1,31 @@
+// Copyright (C) 2018 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.proto;
+
+import static com.google.common.truth.extensions.proto.ProtoTruth.assertThat;
+
+import com.google.gerrit.proto.reviewdb.Reviewdb.Change;
+import com.google.gerrit.proto.reviewdb.Reviewdb.Change_Id;
+import org.junit.Test;
+
+public class ReviewDbProtoTest {
+  @Test
+  public void generatedProtoApi() {
+    Change c1 = Change.newBuilder().setChangeId(Change_Id.newBuilder().setId(1234).build()).build();
+    Change c2 = Change.newBuilder().setChangeId(Change_Id.newBuilder().setId(5678).build()).build();
+    assertThat(c1).isEqualTo(c1);
+    assertThat(c1).isNotEqualTo(c2);
+  }
+}

lib/BUILD

@@ -72,7 +72,11 @@ java_library(
     name = "gwtorm",
     visibility = ["//visibility:public"],
     exports = [":gwtorm-client"],
-    runtime_deps = [":protobuf"],
+    runtime_deps = [
+        ":protobuf",
+        "//lib/antlr:java-runtime",
+        "//lib/ow2:ow2-asm",
+    ],
 )
 
 java_library(

proto/BUILD

@@ -8,3 +8,21 @@ java_proto_library(
     visibility = ["//visibility:public"],
     deps = [":cache_proto"],
 )
+
+genrule(
+    name = "gen_reviewdb_proto",
+    outs = ["reviewdb.proto"],
+    cmd = "$(location //java/com/google/gerrit/proto:ProtoGen) -o $@",
+    tools = ["//java/com/google/gerrit/proto:ProtoGen"],
+)
+
+proto_library(
+    name = "reviewdb_proto",
+    srcs = [":reviewdb.proto"],
+)
+
+java_proto_library(
+    name = "reviewdb_java_proto",
+    visibility = ["//javatests/com/google/gerrit/proto:__pkg__"],
+    deps = [":reviewdb_proto"],
+)

resources/com/google/gerrit/proto/BUILD

@@ -0,0 +1,8 @@
+filegroup(
+    name = "proto",
+    srcs = glob(
+        ["**/*"],
+        exclude = ["BUILD"],
+    ),
+    visibility = ["//visibility:public"],
+)

resources/com/google/gerrit/proto/ProtoGenHeader.txt

@@ -14,7 +14,6 @@
 
 syntax = "proto2";
 
-option java_api_version = 2;
 option java_package = "com.google.gerrit.proto.reviewdb";
 
 package devtools.gerritcodereview;