1 files changed, 99 insertions, 0 deletions
diff --git a/src/objc_tools/xcodegen/java/com/google/devtools/build/xcode/xcodegen/XcodeGen.java b/src/objc_tools/xcodegen/java/com/google/devtools/build/xcode/xcodegen/XcodeGen.java
new file mode 100644
index 0000000000..2c5bca6542
--- /dev/null
+++ b/src/objc_tools/xcodegen/java/com/google/devtools/build/xcode/xcodegen/XcodeGen.java
@@ -0,0 +1,99 @@
+// Copyright 2014 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.xcodegen;
+
+import com.google.common.collect.ImmutableList;
+import com.google.devtools.build.xcode.xcodegen.proto.XcodeGenProtos.Control;
+import com.google.devtools.common.options.Option;
+import com.google.devtools.common.options.Options;
+import com.google.devtools.common.options.OptionsBase;
+import com.google.devtools.common.options.OptionsParser;
+import com.google.devtools.common.options.OptionsParsingException;
+
+import com.facebook.buck.apple.xcode.xcodeproj.PBXProject;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+/**
+ * Entry-point for the command-line Xcode project generator.
+ */
+public class XcodeGen {
+  /**
+   * Options for {@link XcodeGen}.
+   */
+  public static class XcodeGenOptions extends OptionsBase {
+    @Option(
+        name = "control",
+        help = "Path to a control file, which contains only a binary serialized instance of "
+            + "the Control protocol buffer. Required.",
+        defaultValue = "null")
+    public String control;
+  }
+
+  public static void main(String[] args) throws IOException, OptionsParsingException {
+    OptionsParser parser = OptionsParser.newOptionsParser(XcodeGenOptions.class);
+    parser.parse(args);
+    XcodeGenOptions options = parser.getOptions(XcodeGenOptions.class);
+    if (options.control == null) {
+      throw new IllegalArgumentException("--control must be specified\n"
+          + Options.getUsage(XcodeGenOptions.class));
+    }
+    FileSystem fileSystem = FileSystems.getDefault();
+
+    Control controlPb;
+    try (InputStream in = Files.newInputStream(fileSystem.getPath(options.control))) {
+      controlPb = Control.parseFrom(in);
+    }
+    Path pbxprojPath = fileSystem.getPath(controlPb.getPbxproj());
+
+    Path symlinkToInsideWorkspace = fileSystem.getPath("tools/objc/precomp_xcodegen_deploy.jar");
+    Path workspaceRoot;
+    if (!Files.exists(symlinkToInsideWorkspace)) {
+      workspaceRoot = XcodeprojGeneration.relativeWorkspaceRoot(pbxprojPath);
+    } else {
+      // Get the absolute path to the workspace root.
+
+      // TODO(bazel-team): Remove this hack, possibly by converting Xcodegen to be run with
+      // "bazel run" and using RUNFILES to get the workspace root. For now, this is needed to work
+      // around Xcode's handling of symlinks not playing nicely with how Bazel stores output
+      // artifacts in /private/var/tmp. This means a relative path from .xcodeproj in bazel-out to
+      // the workspace root in .xcodeproj will not work properly at certain times during
+      // Xcode/xcodebuild execution.
+      workspaceRoot = symlinkToInsideWorkspace
+          .toRealPath()
+          .resolve("../../..")
+          .normalize();
+    }
+
+    try (OutputStream out = Files.newOutputStream(pbxprojPath)) {
+      // This workspace root here is relative to the PWD, so that the .xccurrentversion
+      // files can actually be read. The other workspaceRoot is relative to the .xcodeproj
+      // root or is absolute.
+      Path relativeWorkspaceRoot = fileSystem.getPath(".");
+      PBXProject project = XcodeprojGeneration.xcodeproj(
+          workspaceRoot, controlPb,
+          ImmutableList.of(
+              new CurrentVersionSetter(relativeWorkspaceRoot),
+              new PbxReferencesGrouper(fileSystem)));
+      XcodeprojGeneration.write(out, project);
+    }
+  }
+}