Save GWT compile time by avoiding javac

GWT only needs the rebind code for CSS and ServerLinker to be
precompiled as bytecode. Save build time by passing no source
files to the java_library() used by gwt_module().

For a full draft build of ui_safari this cuts the refresh time
down from 32.015s to 26.158s on my MacBook. Saving 6s on each
UI reload adds up during development.

The common annotations need to be provided as bytecode, avoiding
spurious warnings from GWT when there is a Java syntax error.

Change-Id: I37826498650c65c05303e7d4d1177d05781c56f6

gerrit-acceptance-tests/BUCK

@@ -4,6 +4,7 @@ java_library(
   name = 'lib',
   srcs = glob(['src/test/java/com/google/gerrit/acceptance/*.java']),
   exported_deps = [
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-launcher:launcher',

gerrit-common/BUCK

@@ -1,5 +1,17 @@
 SRC = 'src/main/java/com/google/gerrit/'
 
+ANNOTATIONS = [
+  SRC + 'common/Nullable.java',
+  SRC + 'common/audit/Audit.java',
+  SRC + 'common/auth/SignInRequired.java',
+]
+
+java_library(
+  name = 'annotations',
+  srcs = ANNOTATIONS,
+  visibility = ['PUBLIC'],
+)
+
 gwt_module(
   name = 'client',
   srcs = glob([SRC + 'common/**/*.java']),
@@ -8,6 +20,9 @@ gwt_module(
     '//gerrit-patch-jgit:client',
     '//gerrit-prettify:client',
     '//gerrit-reviewdb:client',
+  ],
+  compile_deps = [
+    ':annotations',
     '//lib:gwtjsonrpc',
     '//lib:gwtorm',
     '//lib/jgit:jgit',
@@ -17,8 +32,9 @@ gwt_module(
 
 java_library(
   name = 'server',
-  srcs = glob([SRC + 'common/**/*.java']),
+  srcs = glob([SRC + 'common/**/*.java'], excludes = ANNOTATIONS),
   deps = [
+    ':annotations',
     '//gerrit-patch-jgit:server',
     '//gerrit-prettify:server',
     '//gerrit-reviewdb:server',

gerrit-common/src/main/java/com/google/gerrit/common/auth/SignInRequired.java

@@ -14,8 +14,6 @@
 
 package com.google.gerrit.common.auth;
 
-import com.google.gerrit.common.errors.NotSignedInException;
-
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -24,8 +22,9 @@ import java.lang.annotation.Target;
 /**
  * Annotation indicating a service method requires a current user.
  * <p>
- * If there is no current user then {@link NotSignedInException} will be given
- * to the callback's onFailure method.
+ * If there is no current user then
+ * {@code com.google.gerrit.common.errors.NotSignedInException} will be given to
+ * the callback's onFailure method.
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.METHOD)

gerrit-gwtexpui/BUCK

@@ -11,16 +11,18 @@ gwt_module(
   deps = [
     ':SafeHtml',
     ':UserAgent',
+  ],
+  compile_deps = [
     '//lib/gwt:user',
     '//lib:LICENSE-clippy',
   ],
   visibility = ['PUBLIC'],
 )
 
-gwt_module(
+java_library(
   name = 'CSS',
   srcs = glob([SRC + 'css/rebind/*.java']),
-  gwtxml = SRC + 'css/CSS.gwt.xml',
+  resources = [SRC + 'css/CSS.gwt.xml'],
   deps = ['//lib/gwt:dev'],
   visibility = ['PUBLIC'],
 )
@@ -36,15 +38,15 @@ gwt_module(
   deps = [
     ':SafeHtml',
     ':UserAgent',
-    '//lib/gwt:user',
   ],
+  compile_deps = ['//lib/gwt:user'],
   visibility = ['PUBLIC'],
 )
 
-gwt_module(
+java_library(
   name = 'Linker',
   srcs = glob([SRC + 'linker/rebind/*.java']),
-  gwtxml = SRC + 'linker/ServerPlannedIFrameLinker.gwt.xml',
+  resources = [SRC + 'linker/ServerPlannedIFrameLinker.gwt.xml'],
   deps = ['//lib/gwt:dev'],
   visibility = ['PUBLIC'],
 )
@@ -61,7 +63,7 @@ gwt_module(
   srcs = glob([SRC + 'progress/client/*.java']),
   gwtxml = SRC + 'progress/Progress.gwt.xml',
   resources = [SRC + 'progress/client/progress.css'],
-  deps = ['//lib/gwt:user'],
+  compile_deps = ['//lib/gwt:user'],
   visibility = ['PUBLIC'],
 )
 
@@ -70,7 +72,7 @@ gwt_module(
   srcs = glob([SRC + 'safehtml/client/*.java']),
   gwtxml = SRC + 'safehtml/SafeHtml.gwt.xml',
   resources = [SRC + 'safehtml/client/safehtml.css'],
-  deps = ['//lib/gwt:user'],
+  compile_deps = ['//lib/gwt:user'],
   visibility = ['PUBLIC'],
 )
 
@@ -80,19 +82,19 @@ java_test(
     'src/test/java/com/google/gwtexpui/safehtml/client/**/*.java',
   ]),
   deps = [
-    ':SafeHtml',
+    ':SafeHtml_lib',
     '//lib:junit',
     '//lib/gwt:user',
     '//lib/gwt:dev',
   ],
-  source_under_test = [':SafeHtml'],
+  source_under_test = [':SafeHtml_lib'],
 )
 
 gwt_module(
   name = 'UserAgent',
   srcs = glob([SRC + 'user/client/*.java']),
   gwtxml = SRC + 'user/User.gwt.xml',
-  deps = ['//lib/gwt:user'],
+  compile_deps = ['//lib/gwt:user'],
   visibility = ['PUBLIC'],
 )
 

gerrit-gwtui/BUCK

@@ -56,11 +56,8 @@ gwt_module(
   gwtxml = 'src/main/java/%s.gwt.xml' % MODULE.replace('.', '/'),
   resources = glob(['src/main/java/**/*'], excludes = DIFFY),
   deps = [
-    ':diffy_logo',
     '//gerrit-gwtexpui:Clippy',
-    '//gerrit-gwtexpui:CSS',
     '//gerrit-gwtexpui:GlobalKey',
-    '//gerrit-gwtexpui:Linker',
     '//gerrit-gwtexpui:Progress',
     '//gerrit-gwtexpui:SafeHtml',
     '//gerrit-gwtexpui:UserAgent',
@@ -69,6 +66,11 @@ gwt_module(
     '//gerrit-patch-jgit:client',
     '//gerrit-prettify:client',
     '//gerrit-reviewdb:client',
+  ],
+  compile_deps = [
+    ':diffy_logo',
+    '//gerrit-gwtexpui:CSS',
+    '//gerrit-gwtexpui:Linker',
     '//lib:gwtjsonrpc',
     '//lib:gwtjsonrpc_src',
     '//lib:gwtorm',
@@ -111,16 +113,16 @@ java_test(
     'src/main/java/com/google/gerrit/GerritGwtUI.gwt.xml',
   ],
   deps = [
-    ':ui_module',
-    '//gerrit-common:client',
-    '//gerrit-extension-api:client',
+    ':ui_module_lib',
+    '//gerrit-common:client_lib',
+    '//gerrit-extension-api:client_lib',
     '//lib:junit',
     '//lib/gwt:dev',
     '//lib/gwt:user',
     '//lib/gwt:gwt-test-utils',
     '//lib/jgit:jgit',
   ],
-  source_under_test = [':ui_module'],
+  source_under_test = [':ui_module_lib'],
   vm_args = ['-Xmx512m'],
   visibility = ['//tools/eclipse:classpath'],
 )

gerrit-httpd/BUCK

@@ -9,6 +9,7 @@ java_library2(
   resources = RESOURCES,
   deps = [
     '//gerrit-antlr:query_exception',
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-gwtexpui:linker_server',

gerrit-lucene/BUCK

@@ -22,6 +22,7 @@ java_library(
   deps = [
     ':query_builder',
     '//gerrit-antlr:query_exception',
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-reviewdb:server',

gerrit-openid/BUCK

@@ -3,6 +3,7 @@ java_library2(
   srcs = glob(['src/main/java/**/*.java']),
   resources = glob(['src/main/resources/**/*']),
   deps = [
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-gwtexpui:server',

gerrit-patch-jgit/BUCK

@@ -7,7 +7,7 @@ gwt_module(
     SRC + 'diff/ReplaceEdit.java',
   ],
   gwtxml = SRC + 'JGit.gwt.xml',
-  deps = [
+  compile_deps = [
     '//lib:gwtjsonrpc',
     '//lib/gwt:user',
     '//lib/jgit:jgit',

gerrit-pgm/BUCK

@@ -14,6 +14,7 @@ java_library(
   name = 'init-api',
   srcs = INIT_API_SRCS,
   deps = [
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-server:server',
     '//lib/guice:guice',

gerrit-plugin-api/BUCK

@@ -20,6 +20,7 @@ java_binary(
 java_library(
   name = 'lib',
   exported_deps = PLUGIN_API + [
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-reviewdb:server',

gerrit-prettify/BUCK

@@ -11,10 +11,12 @@ gwt_module(
     'src/main/java/com/google/gerrit/prettify/client/*.properties',
   ]),
   deps = [
-    ':google-code-prettify',
     '//gerrit-patch-jgit:client',
     '//gerrit-reviewdb:client',
     '//gerrit-gwtexpui:SafeHtml',
+  ],
+  compile_deps = [
+    ':google-code-prettify',
     '//lib:guava',
     '//lib:gwtjsonrpc',
     '//lib/gwt:user',

gerrit-reviewdb/BUCK

@@ -4,7 +4,7 @@ gwt_module(
   name = 'client',
   srcs = glob([SRC + 'client/**/*.java']),
   gwtxml = SRC + 'ReviewDB.gwt.xml',
-  deps = [
+  compile_deps = [
     '//lib:gwtorm',
     '//lib:gwtorm_src'
   ],

gerrit-server/BUCK

@@ -25,6 +25,7 @@ java_library2(
     ':constants',
     '//gerrit-antlr:query_exception',
     '//gerrit-antlr:query_parser',
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-patch-commonsnet:commons-net',
@@ -148,6 +149,7 @@ java_test(
     ':testutil',
     '//gerrit-antlr:query_exception',
     '//gerrit-antlr:query_parser',
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-extension-api:api',
     '//gerrit-reviewdb:server',

gerrit-sshd/BUCK

@@ -6,6 +6,7 @@ java_library2(
   deps = [
     '//gerrit-extension-api:api',
     '//gerrit-cache-h2:cache-h2',
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//gerrit-patch-jgit:server',
     '//gerrit-reviewdb:server',

gerrit-util-cli/BUCK

@@ -2,6 +2,7 @@ java_library(
   name = 'cli',
   srcs = glob(['src/main/java/**/*.java']),
   deps = [
+    '//gerrit-common:annotations',
     '//gerrit-common:server',
     '//lib:args4j',
     '//lib:guava',

tools/default.defs

@@ -38,15 +38,20 @@ def gwt_module(
     gwtxml = None,
     resources = [],
     deps = [],
+    compile_deps = [],
     visibility = []):
   if gwtxml:
     resources = resources + [gwtxml]
-  resources = resources + srcs
   java_library(
     name = name,
+    deps = deps + compile_deps,
+    resources = srcs + resources,
+    visibility = visibility,
+  )
+  java_library(
+    name = name + '_lib',
     srcs = srcs,
-    deps = deps,
-    resources = resources,
+    deps = [':' + name] + [d + '_lib' for d in deps] + compile_deps,
     visibility = visibility,
   )