Add ability to compile objc_binary targets with Swift sources.

* Swift sources whitelisted
* Swift compilation and module merging actions
* Swift stdlib copying into IPA action
* Special case for signing embedded swift stdlib dylibs during bundle signing
* Works with mixed ObjC/Swift sources
* Doesn't support working with dependencies from Swift code.
* Requires Xcode 6.3.1 for swift compiler and tooling.

--
MOS_MIGRATED_REVID=96141887

4 files changed, 81 insertions, 0 deletions

diff --git a/src/tools/xcode-common/BUILD b/src/tools/xcode-common/BUILD
index b34518bb66..187e8c1dfe 100644
--- a/src/tools/xcode-common/BUILD
+++ b/src/tools/xcode-common/BUILD
@@ -6,6 +6,7 @@ filegroup(
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/actoolzip:srcs",
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/common:srcs",
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/ibtoolzip:srcs",
+        "//src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip:srcs",
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/util:srcs",
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/zip:srcs",
         "//src/tools/xcode-common/java/com/google/devtools/build/xcode/zippingoutput:srcs",
diff --git a/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/BUILD b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/BUILD
new file mode 100644
index 0000000000..b42968804a
--- /dev/null
+++ b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/BUILD
@@ -0,0 +1,17 @@
+package(default_visibility = ["//src:__subpackages__"])
+
+filegroup(
+    name = "srcs",
+    srcs = glob(["**"]),
+)
+
+java_binary(
+    name = "swiftstdlibtoolzip",
+    srcs = ["SwiftStdlibToolZip.java"],
+    main_class = "com.google.devtools.build.xcode.swiftstdlibtoolzip.SwiftStdlibToolZip",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//src/tools/xcode-common/java/com/google/devtools/build/xcode/zippingoutput",
+        "//third_party:guava",
+    ],
+)
diff --git a/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/README b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/README
new file mode 100644
index 0000000000..0c8b3f082d
--- /dev/null
+++ b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/README
@@ -0,0 +1,4 @@
+swiftstdlibtoolzip runs swift-stdlib-tool, which scans executables and copies required Swift
+framework dylibs to the specified path, then zips up the output for further bundle merging.
+
+swift-stdlib-tool only runs on Darwin, so swiftstdlibtoolzip only runs on Darwin.
diff --git a/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/SwiftStdlibToolZip.java b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/SwiftStdlibToolZip.java
new file mode 100644
index 0000000000..2043a08fd3
--- /dev/null
+++ b/src/tools/xcode-common/java/com/google/devtools/build/xcode/swiftstdlibtoolzip/SwiftStdlibToolZip.java
@@ -0,0 +1,59 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// 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.devtools.build.xcode.swiftstdlibtoolzip;
+
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.xcode.zippingoutput.Arguments;
+import com.google.devtools.build.xcode.zippingoutput.Wrapper;
+import com.google.devtools.build.xcode.zippingoutput.Wrappers;
+
+import java.io.IOException;
+
+/**
+ * A tool which wraps swift-stdlib-tool by running and zipping its output. See {@link Wrapper} for
+ * more information.
+ */
+public class SwiftStdlibToolZip implements Wrapper {
+
+  @Override
+  public String name() {
+    return "SwiftStdlibToolZip";
+  }
+
+  @Override
+  public String subtoolName() {
+    return "swift-stdlib-tool";
+  }
+
+  @Override
+  public Iterable<String> subCommand(Arguments arguments, String outputDirectory) {
+    return new ImmutableList.Builder<String>()
+        .add(arguments.subtoolCmd())
+        .addAll(arguments.subtoolExtraArgs())
+        .add("--copy")
+        .add("--verbose")
+        .add("--destination").add(outputDirectory)
+        .build();
+  }
+
+  @Override
+  public boolean outputDirectoryMustExist() {
+    return true;
+  }
+
+  public static void main(String[] args) throws IOException, InterruptedException {
+    Wrappers.executePipingOutput(args, new SwiftStdlibToolZip());
+  }
+}