Update from Google.

--
MOE_MIGRATED_REVID=85702957

32 files changed, 2455 insertions, 0 deletions

diff --git a/third_party/java/buck-ios-support/LICENSE b/third_party/java/buck-ios-support/LICENSE
new file mode 100644
index 0000000000..d645695673
--- /dev/null
+++ b/third_party/java/buck-ios-support/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   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.
diff --git a/third_party/java/buck-ios-support/README b/third_party/java/buck-ios-support/README
new file mode 100644
index 0000000000..2799abedba
--- /dev/null
+++ b/third_party/java/buck-ios-support/README
@@ -0,0 +1,15 @@
+URL: https://github.com/facebook/buck/tarball/2ff4f45a971776afcfbe88333d78c4ca6bf03df9
+Version: 2ff4f45a971776afcfbe88333d78c4ca6bf03df9
+License: Apache 2.0
+License File: LICENSE
+
+Description:
+Buck: An Android (and Java!) build tool
+
+This copy is stripped down to only include the files needed for Xcode project generation, specifically:
+com/facebook/buck/apple/{FileTypes,xcode/{xcodeproj/**,GidGenerator,XcodeprojSerializer}}.java
+
+Local Modifications:
+Add FILE_REFERENCE(2) to the PBXContainerItemProxy.ProxyType enum.
+Update LastUpgradeCheck from 600 to 610
+Add logic to automatically detect XCVersionGroup type even if there is no currentVersion set
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/FileTypes.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/FileTypes.java
new file mode 100644
index 0000000000..1ea0c04831
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/FileTypes.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableMultimap;
+import com.google.common.collect.ImmutableSet;
+
+/**
+ * File types used in Apple targets.
+ */
+public final class FileTypes {
+
+  // Utility class. Do not instantiate.
+  private FileTypes() { }
+
+  /**
+   * Map of file extension to Apple UTI (Uniform Type Identifier).
+   */
+  public static final ImmutableMap<String, String> FILE_EXTENSION_TO_UTI =
+      ImmutableMap.<String, String>builder()
+          .put("a", "archive.ar")
+          .put("app", "wrapper.application")
+          .put("appex", "wrapper.app-extension")
+          .put("bdic", "file")
+          .put("bin", "archive.macbinary")
+          .put("bmp", "image.bmp")
+          .put("bundle", "wrapper.cfbundle")
+          .put("c", "sourcecode.c.c")
+          .put("cc", "sourcecode.cpp.cpp")
+          .put("cpp", "sourcecode.cpp.cpp")
+          .put("css", "text.css")
+          .put("cxx", "sourcecode.cpp.cpp")
+          .put("dart", "sourcecode")
+          .put("dylib", "compiled.mach-o.dylib")
+          .put("exp", "sourcecode.exports")
+          .put("framework", "wrapper.framework")
+          .put("fsh", "sourcecode.glsl")
+          .put("gyp", "sourcecode")
+          .put("gypi", "text")
+          .put("h", "sourcecode.c.h")
+          .put("hxx", "sourcecode.cpp.h")
+          .put("icns", "image.icns")
+          .put("java", "sourcecode.java")
+          .put("jar", "archive.jar")
+          .put("jpeg", "image.jpeg")
+          .put("jpg", "image.jpeg")
+          .put("js", "sourcecode.javascript")
+          .put("json", "text.json")
+          .put("m", "sourcecode.c.objc")
+          .put("mm", "sourcecode.cpp.objcpp")
+          .put("nib", "wrapper.nib")
+          .put("o", "compiled.mach-o.objfile")
+          .put("octest", "wrapper.cfbundle")
+          .put("pdf", "image.pdf")
+          .put("pl", "text.script.perl")
+          .put("plist", "text.plist.xml")
+          .put("pm", "text.script.perl")
+          .put("png", "image.png")
+          .put("proto", "text")
+          .put("py", "text.script.python")
+          .put("r", "sourcecode.rez")
+          .put("rez", "sourcecode.rez")
+          .put("rtf", "text.rtf")
+          .put("s", "sourcecode.asm")
+          .put("storyboard", "file.storyboard")
+          .put("strings", "text.plist.strings")
+          .put("tif", "image.tiff")
+          .put("tiff", "image.tiff")
+          .put("tcc", "sourcecode.cpp.cpp")
+          .put("ttf", "file")
+          .put("vsh", "sourcecode.glsl")
+          .put("xcassets", "folder.assetcatalog")
+          .put("xcconfig", "text.xcconfig")
+          .put("xcodeproj", "wrapper.pb-project")
+          .put("xcdatamodel", "wrapper.xcdatamodel")
+          .put("xcdatamodeld", "wrapper.xcdatamodeld")
+          .put("xctest", "wrapper.cfbundle")
+          .put("xib", "file.xib")
+          .put("y", "sourcecode.yacc")
+          .put("zip", "archive.zip")
+          .build();
+
+  /**
+   * Set of UTIs which only work as "lastKnownFileType" and not "explicitFileType"
+   * in a PBXFileReference.
+   *
+   * Yes, really. Because Xcode.
+   */
+  public static final ImmutableSet<String> EXPLICIT_FILE_TYPE_BROKEN_UTIS =
+    ImmutableSet.of("file.xib");
+
+  /**
+   * Multimap of Apple UTI (Uniform Type Identifier) to file extension(s).
+   */
+  public static final ImmutableMultimap<String, String> UTI_TO_FILE_EXTENSIONS;
+
+  static {
+    // Invert the map of (file extension -> UTI) pairs to
+    // (UTI -> [file extension 1, ...]) pairs.
+    ImmutableMultimap.Builder<String, String> builder = ImmutableMultimap.builder();
+    for (ImmutableMap.Entry<String, String> entry : FILE_EXTENSION_TO_UTI.entrySet()) {
+      builder.put(entry.getValue(), entry.getKey());
+    }
+    UTI_TO_FILE_EXTENSIONS = builder.build();
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/GidGenerator.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/GidGenerator.java
new file mode 100644
index 0000000000..03395a05ba
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/GidGenerator.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode;
+
+import com.google.common.collect.Sets;
+
+import java.util.Set;
+
+/**
+ * Generator for Global ID (GID) which are present on every xcode project object.
+ *
+ * The GID is a 96 bit identifier that's unique on a per-project basis.
+ */
+public class GidGenerator {
+  private final Set<String> generatedAndReservedIds;
+
+  public GidGenerator(Set<String> reservedIds) {
+    generatedAndReservedIds = Sets.newHashSet(reservedIds);
+  }
+
+  /**
+   * Generate a stable GID based on the class name and hash of some object info.
+   *
+   * GIDs generated this way will be in the form of
+   *  {@code <class-name-hash-32> <obj-hash-32> <counter-32>}
+   */
+  public String generateGid(String pbxClassName, int hash) {
+    int counter = 0;
+    String gid;
+    do {
+      gid = String.format("%08X%08X%08X", pbxClassName.hashCode(), hash, counter++);
+    } while (generatedAndReservedIds.contains(gid));
+    generatedAndReservedIds.add(gid);
+    return gid;
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/XcodeprojSerializer.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/XcodeprojSerializer.java
new file mode 100644
index 0000000000..b43081f90a
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/XcodeprojSerializer.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode;
+
+import com.dd.plist.NSArray;
+import com.dd.plist.NSDictionary;
+import com.dd.plist.NSObject;
+import com.dd.plist.NSString;
+import com.facebook.buck.log.Logger;
+import com.facebook.buck.apple.xcode.xcodeproj.PBXObject;
+import com.facebook.buck.apple.xcode.xcodeproj.PBXProject;
+
+import java.util.List;
+
+import javax.annotation.concurrent.NotThreadSafe;
+
+/**
+ * Serializer that handles conversion of an in-memory object graph representation of an xcode
+ * project (instances of {@link PBXObject}) into an Apple property list.
+ *
+ * Serialization proceeds from the root object, a ${link PBXProject} instance, to all of its
+ * referenced objects. Each object being visited calls back into this class ({@link #addField}) to
+ * populate the plist representation with its fields.
+ */
+@NotThreadSafe
+public class XcodeprojSerializer {
+  private static final Logger LOG = Logger.get(XcodeprojSerializer.class);
+
+  private final PBXProject rootObject;
+  private final NSDictionary objects;
+  private final GidGenerator gidGenerator;
+  private NSDictionary currentObject;
+
+  public XcodeprojSerializer(GidGenerator gidGenerator, PBXProject project) {
+    rootObject = project;
+    objects = new NSDictionary();
+    this.gidGenerator = gidGenerator;
+  }
+
+  /**
+   * Generate a plist serialization of project bound to this serializer.
+   */
+  public NSDictionary toPlist() {
+    serializeObject(rootObject);
+
+    NSDictionary root = new NSDictionary();
+    root.put("archiveVersion", "1");
+    root.put("classes", new NSDictionary());
+    root.put("objectVersion", "46");
+    root.put("objects", objects);
+    root.put("rootObject", rootObject.getGlobalID());
+
+    return root;
+  }
+
+  /**
+   * Serialize a {@link PBXObject} and its recursive descendants into the object dictionary.
+   *
+   * @return the GID of the serialized object
+   *
+   * @see PBXObject#serializeInto
+   */
+  private String serializeObject(PBXObject obj) {
+    if (obj.getGlobalID() == null) {
+      obj.setGlobalID(obj.generateGid(gidGenerator));
+      LOG.verbose("Set new object GID: %s", obj);
+    } else {
+      // Check that the object has already been serialized.
+      NSObject object = objects.get(obj.getGlobalID());
+      if (object != null) {
+        LOG.verbose("Object %s found, returning existing object %s", obj, object);
+        return obj.getGlobalID();
+      } else {
+        LOG.verbose("Object already had GID set: %s", obj);
+      }
+    }
+
+    // Save the existing object being deserialized.
+    NSDictionary stack = currentObject;
+
+    currentObject = new NSDictionary();
+    currentObject.put("isa", obj.isa());
+    obj.serializeInto(this);
+    objects.put(obj.getGlobalID(), currentObject);
+
+    // Restore the existing object being deserialized.
+    currentObject = stack;
+    return obj.getGlobalID();
+  }
+
+  public void addField(String name, PBXObject obj) {
+    if (obj != null) {
+      String gid = serializeObject(obj);
+      currentObject.put(name, gid);
+    }
+  }
+
+  public void addField(String name, int val) {
+    currentObject.put(name, val);
+  }
+
+  public void addField(String name, String val) {
+    if (val != null) {
+      currentObject.put(name, val);
+    }
+  }
+
+  public void addField(String name, boolean val) {
+    currentObject.put(name, val);
+  }
+
+  public void addField(String name, List<? extends PBXObject> objectList) {
+    NSArray array = new NSArray(objectList.size());
+    for (int i = 0; i < objectList.size(); i++) {
+      String gid = serializeObject(objectList.get(i));
+      array.setValue(i, new NSString(gid));
+    }
+    currentObject.put(name, array);
+  }
+
+  public void addField(String name, NSObject v) {
+    if (v != null) {
+      currentObject.put(name, v);
+    }
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXAggregateTarget.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXAggregateTarget.java
new file mode 100644
index 0000000000..1e6601004f
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXAggregateTarget.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Target backed by shell scripts or nothing (only specifying dependencies).
+ */
+public class PBXAggregateTarget extends PBXTarget {
+  public PBXAggregateTarget(String name, ProductType productType) {
+    super(name, productType);
+  }
+
+  @Override
+  public String isa() {
+    return "PBXAggregateTarget";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildFile.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildFile.java
new file mode 100644
index 0000000000..cdab5b64c7
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildFile.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.dd.plist.NSDictionary;
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+
+/**
+ * File referenced by a build phase, unique to each build phase.
+ *
+ * Contains a dictionary {@link #settings} which holds additional information to be interpreted by
+ * the particular phase referencing this object, e.g.:
+ *
+ *  - {@link PBXHeadersBuildPhase } may read <code>{"ATTRIBUTES": ["Public"]}</code> and interpret
+ *    the build file as a public (exported) header.
+ *  - {@link PBXSourcesBuildPhase } may read <code>{"COMPILER_FLAGS": "-foo"}</code> and interpret
+ *    that this file should be compiled with the additional flag {@code "-foo" }.
+ */
+public class PBXBuildFile extends PBXProjectItem {
+  private final PBXReference fileRef;
+  private Optional<NSDictionary> settings;
+
+  public PBXBuildFile(PBXReference fileRef) {
+    this.fileRef = Preconditions.checkNotNull(fileRef);
+    this.settings = Optional.absent();
+  }
+
+  public PBXReference getFileRef() {
+    return fileRef;
+  }
+
+  public Optional<NSDictionary> getSettings() {
+    return settings;
+  }
+
+  public void setSettings(Optional<NSDictionary> v) {
+    settings = v;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXBuildFile";
+  }
+
+  @Override
+  public int stableHash() {
+    return fileRef.stableHash();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("fileRef", fileRef);
+    if (settings.isPresent()) {
+      s.addField("settings", settings.get());
+    }
+  }
+
+  @Override
+  public String toString() {
+    return String.format("%s fileRef=%s settings=%s", super.toString(), fileRef, settings);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildPhase.java
new file mode 100644
index 0000000000..96d0cd336a
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildPhase.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+/**
+ * Superclass of build phases. Each build phase represents one step in building a target.
+ */
+public abstract class PBXBuildPhase extends PBXProjectItem {
+  private final List<PBXBuildFile> files;
+
+  public PBXBuildPhase() {
+    this.files = Lists.newArrayList();
+  }
+
+  public List<PBXBuildFile> getFiles() {
+    return files;
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("files", files);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildStyle.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildStyle.java
new file mode 100644
index 0000000000..be572d557c
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXBuildStyle.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.dd.plist.NSDictionary;
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Preconditions;
+
+public class PBXBuildStyle extends PBXProjectItem {
+  private final String name;
+  private NSDictionary buildSettings;
+
+  public PBXBuildStyle(String name) {
+    this.name = Preconditions.checkNotNull(name);
+    this.buildSettings = new NSDictionary();
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public NSDictionary getBuildSettings() {
+    return buildSettings;
+  }
+
+  public void setBuildSettings(NSDictionary buildSettings) {
+    this.buildSettings = buildSettings;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXBuildStyle";
+  }
+
+  @Override
+  public int stableHash() {
+    return name.hashCode();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("name", name);
+    s.addField("buildSettings", buildSettings);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainer.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainer.java
new file mode 100644
index 0000000000..6954f7ffed
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainer.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Superclass of all container types. This is here to reflect Xcode's object hierarchy, and does
+ * not implement any special functionality.
+ */
+public abstract class PBXContainer extends PBXObject {
+  @Override
+  public String isa() {
+    return "PBXContainer";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItem.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItem.java
new file mode 100644
index 0000000000..c182b8ad08
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItem.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+
+/**
+ * Superclass in Xcode's object hierarchy, has no non-structural functionality here.
+ */
+public abstract class PBXContainerItem extends PBXObject {
+
+  @Override
+  public String isa() {
+    return "PBXContainerItem";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItemProxy.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItemProxy.java
new file mode 100644
index 0000000000..72badae239
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXContainerItemProxy.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Preconditions;
+
+/**
+ * Reference to another object used by {@link PBXTargetDependency}. Can reference a remote file
+ * by specifying the {@link PBXFileReference} to the remote project file, and the GID of the object
+ * within that file.
+ */
+public class PBXContainerItemProxy extends PBXContainerItem {
+  public enum ProxyType {
+    TARGET_REFERENCE(1),
+    FILE_REFERENCE(2);
+
+    private final int intValue;
+    private ProxyType(int intValue) {
+      this.intValue = intValue;
+    }
+
+    public int getIntValue() {
+      return intValue;
+    }
+  }
+
+  private final PBXFileReference containerPortal;
+  private final String remoteGlobalIDString;
+  private final ProxyType proxyType;
+
+  public PBXContainerItemProxy(
+      PBXFileReference containerPortal,
+      String remoteGlobalIDString,
+      ProxyType proxyType) {
+    Preconditions.checkNotNull(containerPortal);
+    Preconditions.checkNotNull(remoteGlobalIDString);
+    Preconditions.checkNotNull(proxyType);
+    this.containerPortal = containerPortal;
+    this.remoteGlobalIDString = remoteGlobalIDString;
+    this.proxyType = proxyType;
+  }
+
+  public PBXFileReference getContainerPortal() {
+    return containerPortal;
+  }
+
+  public String getRemoteGlobalIDString() {
+    return remoteGlobalIDString;
+  }
+
+  public ProxyType getProxyType() {
+    return proxyType;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXContainerItemProxy";
+  }
+
+  @Override
+  public int stableHash() {
+    return remoteGlobalIDString.hashCode();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("containerPortal", containerPortal);
+    s.addField("remoteGlobalIDString", remoteGlobalIDString);
+    s.addField("proxyType", proxyType.getIntValue());
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXCopyFilesBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXCopyFilesBuildPhase.java
new file mode 100644
index 0000000000..fcf2ed5e1b
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXCopyFilesBuildPhase.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Preconditions;
+
+public class PBXCopyFilesBuildPhase extends PBXBuildPhase {
+  /**
+   * The prefix path, this does not use SourceTreePath and build variables but rather some sort of
+   * enum.
+   */
+  public enum Destination {
+    ABSOLUTE(0),
+    WRAPPER(1),
+    EXECUTABLES(6),
+    RESOURCES(7),
+    FRAMEWORKS(10),
+    SHARED_FRAMEWORKS(11),
+    SHARED_SUPPORT(12),
+    PLUGINS(13),
+    JAVA_RESOURCES(15),
+    PRODUCTS(16),
+    ;
+
+    private int value;
+
+    public int getValue() {
+      return value;
+    }
+
+    private Destination(int value) {
+      this.value = value;
+    }
+  }
+
+  /**
+   * Base path of destination folder.
+   */
+  private Destination dstSubfolderSpec;
+
+  /**
+   * Subdirectory under the destination folder.
+   */
+  private String path;
+
+  public PBXCopyFilesBuildPhase(Destination dstSubfolderSpec, String path) {
+    this.dstSubfolderSpec = Preconditions.checkNotNull(dstSubfolderSpec);
+    this.path = Preconditions.checkNotNull(path);
+  }
+
+  public Destination getDstSubfolderSpec() {
+    return dstSubfolderSpec;
+  }
+
+  public String getPath() {
+    return path;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXCopyFilesBuildPhase";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+    s.addField("dstSubfolderSpec", dstSubfolderSpec.getValue());
+    s.addField("dstPath", path);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFileReference.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFileReference.java
new file mode 100644
index 0000000000..50b9144309
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFileReference.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.FileTypes;
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Optional;
+import com.google.common.io.Files;
+
+/**
+ * Reference to a concrete file.
+ */
+public class PBXFileReference extends PBXReference {
+  private Optional<String> explicitFileType;
+  private Optional<String> lastKnownFileType;
+
+  public PBXFileReference(String name, String path, SourceTree sourceTree) {
+    super(name, path, sourceTree);
+
+    // this is necessary to prevent O(n^2) behavior in xcode project loading
+    String fileType = FileTypes.FILE_EXTENSION_TO_UTI.get(Files.getFileExtension(name));
+    if (FileTypes.EXPLICIT_FILE_TYPE_BROKEN_UTIS.contains(fileType)) {
+      explicitFileType = Optional.absent();
+      lastKnownFileType = Optional.of(fileType);
+    } else {
+      explicitFileType = Optional.fromNullable(fileType);
+      lastKnownFileType = Optional.absent();
+    }
+  }
+
+  public Optional<String> getExplicitFileType() {
+    return explicitFileType;
+  }
+
+  public void setExplicitFileType(Optional<String> explicitFileType) {
+    this.explicitFileType = explicitFileType;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXFileReference";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    if (explicitFileType.isPresent()) {
+      s.addField("explicitFileType", explicitFileType.get());
+    }
+
+    if (lastKnownFileType.isPresent()) {
+      s.addField("lastKnownFileType", lastKnownFileType.get());
+    }
+  }
+
+  @Override
+  public String toString() {
+    return String.format(
+        "%s explicitFileType=%s",
+        super.toString(),
+        getExplicitFileType());
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFrameworksBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFrameworksBuildPhase.java
new file mode 100644
index 0000000000..be4b613bc1
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXFrameworksBuildPhase.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Build phase representing the linking step of a target. Contains references to libraries and
+ * system frameworks. In library targets, it may alter the include path.
+ */
+public class PBXFrameworksBuildPhase extends PBXBuildPhase {
+  @Override
+  public String isa() {
+    return "PBXFrameworksBuildPhase";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXGroup.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXGroup.java
new file mode 100644
index 0000000000..dc636b7969
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXGroup.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.Lists;
+import com.google.common.base.Preconditions;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import javax.annotation.Nullable;
+
+/**
+ * A collection of files in Xcode's virtual filesystem hierarchy.
+ */
+public class PBXGroup extends PBXReference {
+  /**
+   * Method by which group contents will be sorted.
+   */
+  public enum SortPolicy {
+      /**
+       * By name, in default Java sort order.
+       */
+      BY_NAME,
+
+      /**
+       * Group contents will not be sorted, and will remain in the
+       * order they were added.
+       */
+      UNSORTED;
+  }
+
+  // Unfortunately, we can't determine this at constructor time, because CacheBuilder
+  // calls our constructor and it's not easy to pass arguments to it.
+  private SortPolicy sortPolicy;
+
+  private final List<PBXReference> children;
+
+  private final LoadingCache<String, PBXGroup> childGroupsByName;
+  private final LoadingCache<String, PBXVariantGroup> childVariantGroupsByName;
+  private final LoadingCache<SourceTreePath, PBXFileReference> fileReferencesBySourceTreePath;
+  private final LoadingCache<SourceTreePath, XCVersionGroup> childVersionGroupsBySourceTreePath;
+
+  public PBXGroup(String name, @Nullable String path, SourceTree sourceTree) {
+    super(name, path, sourceTree);
+
+    sortPolicy = SortPolicy.BY_NAME;
+    children = Lists.newArrayList();
+
+    childGroupsByName = CacheBuilder.newBuilder().build(
+        new CacheLoader<String, PBXGroup>() {
+          @Override
+          public PBXGroup load(String key) throws Exception {
+            PBXGroup group = new PBXGroup(key, null, SourceTree.GROUP);
+            children.add(group);
+            return group;
+          }
+        });
+
+    childVariantGroupsByName = CacheBuilder.newBuilder().build(
+        new CacheLoader<String, PBXVariantGroup>() {
+          @Override
+          public PBXVariantGroup load(String key) throws Exception {
+            PBXVariantGroup group = new PBXVariantGroup(key, null, SourceTree.GROUP);
+            children.add(group);
+            return group;
+          }
+        });
+
+    fileReferencesBySourceTreePath = CacheBuilder.newBuilder().build(
+        new CacheLoader<SourceTreePath, PBXFileReference>() {
+          @Override
+          public PBXFileReference load(SourceTreePath key) throws Exception {
+            PBXFileReference ref = new PBXFileReference(
+                key.getPath().getFileName().toString(),
+                key.getPath().toString(),
+                key.getSourceTree());
+            children.add(ref);
+            return ref;
+          }
+        });
+
+    childVersionGroupsBySourceTreePath = CacheBuilder.newBuilder().build(
+        new CacheLoader<SourceTreePath, XCVersionGroup>() {
+          @Override
+          public XCVersionGroup load(SourceTreePath key) throws Exception {
+            XCVersionGroup ref = new XCVersionGroup(
+                key.getPath().getFileName().toString(),
+                key.getPath().toString(),
+                key.getSourceTree());
+            children.add(ref);
+            return ref;
+          }
+        });
+  }
+
+  public PBXGroup getOrCreateChildGroupByName(String name) {
+    return childGroupsByName.getUnchecked(name);
+  }
+
+  public PBXVariantGroup getOrCreateChildVariantGroupByName(String name) {
+    return childVariantGroupsByName.getUnchecked(name);
+  }
+
+  public PBXFileReference getOrCreateFileReferenceBySourceTreePath(SourceTreePath sourceTreePath) {
+    return fileReferencesBySourceTreePath.getUnchecked(sourceTreePath);
+  }
+
+  public XCVersionGroup getOrCreateChildVersionGroupsBySourceTreePath(
+      SourceTreePath sourceTreePath) {
+    return childVersionGroupsBySourceTreePath.getUnchecked(sourceTreePath);
+  }
+
+  public List<PBXReference> getChildren() {
+    return children;
+  }
+
+  public void setSortPolicy(SortPolicy sortPolicy) {
+    this.sortPolicy = Preconditions.checkNotNull(sortPolicy);
+  }
+
+  public SortPolicy getSortPolicy() {
+    return sortPolicy;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXGroup";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    if (sortPolicy == SortPolicy.BY_NAME) {
+      Collections.sort(children, new Comparator<PBXReference>() {
+          @Override
+          public int compare(PBXReference o1, PBXReference o2) {
+            return o1.getName().compareTo(o2.getName());
+          }
+        });
+    }
+
+    s.addField("children", children);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXHeadersBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXHeadersBuildPhase.java
new file mode 100644
index 0000000000..3793d2db38
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXHeadersBuildPhase.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Build phase that copies header files into the output headers directory. Does nothing for binary
+ * and test rules.
+ */
+public class PBXHeadersBuildPhase extends PBXBuildPhase {
+  @Override
+  public String isa() {
+    return "PBXHeadersBuildPhase";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXNativeTarget.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXNativeTarget.java
new file mode 100644
index 0000000000..a99c6b76c9
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXNativeTarget.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Concrete target type representing targets built by xcode itself, rather than an external build
+ * system.
+ */
+public class PBXNativeTarget extends PBXTarget {
+  public PBXNativeTarget(String name, ProductType productType) {
+    super(name, productType);
+  }
+
+  @Override
+  public String isa() {
+    return "PBXNativeTarget";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXObject.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXObject.java
new file mode 100644
index 0000000000..d665f7549c
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXObject.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.GidGenerator;
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+
+import javax.annotation.Nullable;
+
+public abstract class PBXObject {
+  @Nullable
+  private String globalID;
+
+  @Nullable
+  public String getGlobalID() {
+    return globalID;
+  }
+
+  public void setGlobalID(String gid) {
+    globalID = gid;
+  }
+
+  /**
+   * @return  Type name of the serialized object.
+   */
+  public abstract String isa();
+
+  /**
+   * Populates the serializer with the fields of this object.
+   */
+  public void serializeInto(@SuppressWarnings("unused") XcodeprojSerializer serializer) {
+  }
+
+  /**
+   * This method is used to generate stable GIDs and must be stable for identical contents.
+   * Returning a constant value is ok but will make the generated project order-dependent.
+   */
+  public int stableHash() {
+    return 0;
+  }
+
+  @Override
+  public String toString() {
+    return String.format("%s isa=%s gid=%s", super.toString(), isa(), getGlobalID());
+  }
+
+  /**
+   * Generate a stable GID.
+   */
+  public final String generateGid(GidGenerator generator) {
+    return generator.generateGid(isa(), stableHash());
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProject.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProject.java
new file mode 100644
index 0000000000..1eec5e9fdd
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProject.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Function;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Ordering;
+import com.dd.plist.NSDictionary;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * The root object representing the project itself.
+ */
+public class PBXProject extends PBXContainer {
+  private String name;
+  private final PBXGroup mainGroup;
+  private final List<PBXTarget> targets;
+  private final XCConfigurationList buildConfigurationList;
+  private final String compatibilityVersion;
+
+  public PBXProject(String name) {
+    this.name = Preconditions.checkNotNull(name);
+    this.mainGroup = new PBXGroup("mainGroup", null, PBXReference.SourceTree.GROUP);
+    this.targets = Lists.newArrayList();
+    this.buildConfigurationList = new XCConfigurationList();
+    this.compatibilityVersion = "Xcode 3.2";
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String v) {
+    name = v;
+  }
+
+  public PBXGroup getMainGroup() {
+    return mainGroup;
+  }
+
+  public List<PBXTarget> getTargets() {
+    return targets;
+  }
+
+  public XCConfigurationList getBuildConfigurationList() {
+    return buildConfigurationList;
+  }
+
+  public String getCompatibilityVersion() {
+    return compatibilityVersion;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXProject";
+  }
+
+  @Override
+  public int stableHash() {
+    return name.hashCode();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("mainGroup", mainGroup);
+
+    Collections.sort(targets, Ordering.natural().onResultOf(new Function<PBXTarget, String>() {
+      @Override
+      public String apply(PBXTarget input) {
+        return input.getName();
+      }
+    }));
+    s.addField("targets", targets);
+    s.addField("buildConfigurationList", buildConfigurationList);
+    s.addField("compatibilityVersion", compatibilityVersion);
+
+    NSDictionary d = new NSDictionary();
+    d.put("LastUpgradeCheck", "0610");
+
+    s.addField("attributes", d);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProjectItem.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProjectItem.java
new file mode 100644
index 0000000000..2b9003427b
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXProjectItem.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+public abstract class PBXProjectItem extends PBXContainerItem {
+  @Override
+  public String isa() {
+    return "PBXProjectItem";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXReference.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXReference.java
new file mode 100644
index 0000000000..a7bed6d35b
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXReference.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.CharMatcher;
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+
+import javax.annotation.Nullable;
+
+/**
+ * Superclass for file, directories, and groups. Xcode's virtual file hierarchy are made of these
+ * objects.
+ */
+public class PBXReference extends PBXContainerItem {
+  public enum SourceTree {
+    /**
+     * Relative to the path of the group containing this.
+     */
+    GROUP("<group>"),
+
+    /**
+     * Absolute system path.
+     */
+    ABSOLUTE("<absolute>"),
+    /**
+     * Relative to the build setting {@code BUILT_PRODUCTS_DIR}.
+     */
+    BUILT_PRODUCTS_DIR("BUILT_PRODUCTS_DIR"),
+
+    /**
+     * Relative to the build setting {@code SDKROOT}.
+     */
+    SDKROOT("SDKROOT"),
+
+    /**
+     * Relative to the directory containing the project file {@code SOURCE_ROOT}.
+     */
+    SOURCE_ROOT("SOURCE_ROOT"),
+
+    /**
+     * Relative to the Developer content directory inside the Xcode application
+     * (e.g. {@code /Applications/Xcode.app/Contents/Developer}).
+     */
+    DEVELOPER_DIR("DEVELOPER_DIR"),
+    ;
+
+    private final String rep;
+
+    SourceTree(String str) {
+      rep = str;
+    }
+
+    @Override
+    public String toString() {
+      return rep;
+    }
+
+    /**
+     * Return a sourceTree given a build setting that is typically used as a source tree prefix.
+     *
+     * The build setting may be optionally prefixed by '$' which will be stripped.
+     */
+    public static Optional<SourceTree> fromBuildSetting(String buildSetting) {
+      switch (CharMatcher.is('$').trimLeadingFrom(buildSetting)) {
+        case "BUILT_PRODUCTS_DIR":
+          return Optional.of(BUILT_PRODUCTS_DIR);
+        case "SDKROOT":
+          return Optional.of(SDKROOT);
+        case "SOURCE_ROOT":
+          return Optional.of(SOURCE_ROOT);
+        case "DEVELOPER_DIR":
+          return Optional.of(DEVELOPER_DIR);
+        default:
+          return Optional.absent();
+      }
+    }
+  }
+
+  private final String name;
+  @Nullable private String path;
+
+  /**
+   * The "base" path of the reference. The absolute path is resolved by prepending the resolved
+   * base path.
+   */
+  private SourceTree sourceTree;
+
+  public PBXReference(String name, @Nullable String path, SourceTree sourceTree) {
+    this.name = Preconditions.checkNotNull(name);
+    this.path = path;
+    this.sourceTree = Preconditions.checkNotNull(sourceTree);
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  @Nullable
+  public String getPath() {
+    return path;
+  }
+  public void setPath(String v) {
+    path = v;
+  }
+  public SourceTree getSourceTree() {
+    return sourceTree;
+  }
+  public void setSourceTree(SourceTree v) {
+    sourceTree = v;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXReference";
+  }
+
+  @Override
+  public int stableHash() {
+    return name.hashCode();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("name", name);
+    if (path != null) {
+      s.addField("path", path);
+    }
+    s.addField("sourceTree", sourceTree.toString());
+  }
+
+  @Override
+  public String toString() {
+    return String.format(
+        "%s name=%s path=%s sourceTree=%s",
+        super.toString(),
+        getName(),
+        getPath(),
+        getSourceTree());
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXResourcesBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXResourcesBuildPhase.java
new file mode 100644
index 0000000000..e0fd771fa2
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXResourcesBuildPhase.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Lists the files to be copied into the output resources directory for the containing
+ * {@link PBXTarget}. Has no effect in library rules.
+ *
+ * A target should contain at most one of this build phase.
+ */
+public class PBXResourcesBuildPhase extends PBXBuildPhase {
+  @Override
+  public String isa() {
+    return "PBXResourcesBuildPhase";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXShellScriptBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXShellScriptBuildPhase.java
new file mode 100644
index 0000000000..7192826a5c
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXShellScriptBuildPhase.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.dd.plist.NSArray;
+import com.dd.plist.NSString;
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+import javax.annotation.Nullable;
+
+/**
+ * Build phase which represents running a shell script.
+ */
+public class PBXShellScriptBuildPhase extends PBXBuildPhase {
+  private List<String> inputPaths;
+  private List<String> outputPaths;
+  @Nullable private String shellPath;
+  @Nullable private String shellScript;
+
+  private static final NSString DEFAULT_SHELL_PATH = new NSString("/bin/sh");
+  private static final NSString DEFAULT_SHELL_SCRIPT = new NSString("");
+
+  public PBXShellScriptBuildPhase() {
+    this.inputPaths = Lists.newArrayList();
+    this.outputPaths = Lists.newArrayList();
+  }
+
+  @Override
+  public String isa() {
+    return "PBXShellScriptBuildPhase";
+  }
+
+  /**
+   * Returns the list (possibly empty) of files passed as input to the shell script.
+   * May not be actual paths, because they can have variable interpolations.
+   */
+  public List<String> getInputPaths() {
+    return inputPaths;
+  }
+
+  /**
+   * Returns the list (possibly empty) of files created as output of the shell script.
+   * May not be actual paths, because they can have variable interpolations.
+   */
+  public List<String> getOutputPaths() {
+    return outputPaths;
+  }
+
+  /**
+   * Returns the path to the shell under which the script is to be executed.
+   * Defaults to "/bin/sh".
+   */
+  @Nullable
+  public String getShellPath() {
+    return shellPath;
+  }
+
+  /**
+   * Sets the path to the shell under which the script is to be executed.
+   */
+  public void setShellPath(String shellPath) {
+    this.shellPath = shellPath;
+  }
+
+  /**
+   * Gets the contents of the shell script to execute under the shell
+   * returned by {@link #getShellPath()}.
+   */
+  @Nullable
+  public String getShellScript() {
+    return shellScript;
+  }
+
+  /**
+   * Sets the contents of the script to execute.
+   */
+  public void setShellScript(String shellScript) {
+    this.shellScript = shellScript;
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    NSArray inputPathsArray = new NSArray(inputPaths.size());
+    for (int i = 0; i < inputPaths.size(); i++) {
+      inputPathsArray.setValue(i, new NSString(inputPaths.get(i)));
+    }
+    s.addField("inputPaths", inputPathsArray);
+
+    NSArray outputPathsArray = new NSArray(outputPaths.size());
+    for (int i = 0; i < outputPaths.size(); i++) {
+      outputPathsArray.setValue(i, new NSString(outputPaths.get(i)));
+    }
+    s.addField("outputPaths", outputPathsArray);
+
+    NSString shellPathString;
+    if (shellPath == null) {
+      shellPathString = DEFAULT_SHELL_PATH;
+    } else {
+      shellPathString = new NSString(shellPath);
+    }
+    s.addField("shellPath", shellPathString);
+
+    NSString shellScriptString;
+    if (shellScript == null) {
+      shellScriptString = DEFAULT_SHELL_SCRIPT;
+    } else {
+      shellScriptString = new NSString(shellScript);
+    }
+    s.addField("shellScript", shellScriptString);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXSourcesBuildPhase.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXSourcesBuildPhase.java
new file mode 100644
index 0000000000..8a43dc7884
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXSourcesBuildPhase.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+/**
+ * Lists the files to be compiled for the containing {@link PBXTarget}.
+ *
+ * A target should contain at most one of this build phase.
+ */
+public class PBXSourcesBuildPhase extends PBXBuildPhase {
+  @Override
+  public String isa() {
+    return "PBXSourcesBuildPhase";
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTarget.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTarget.java
new file mode 100644
index 0000000000..0dc599832c
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTarget.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+import javax.annotation.Nullable;
+
+/**
+ * Information for building a specific artifact (a library, binary, or test).
+ */
+public abstract class PBXTarget extends PBXProjectItem {
+  public enum ProductType {
+    STATIC_LIBRARY("com.apple.product-type.library.static"),
+    DYNAMIC_LIBRARY("com.apple.product-type.library.dynamic"),
+    TOOL("com.apple.product-type.tool"),
+    BUNDLE("com.apple.product-type.bundle"),
+    FRAMEWORK("com.apple.product-type.framework"),
+    STATIC_FRAMEWORK("com.apple.product-type.framework.static"),
+    APPLICATION("com.apple.product-type.application"),
+    UNIT_TEST("com.apple.product-type.bundle.unit-test"),
+    IN_APP_PURCHASE_CONTENT("com.apple.product-type.in-app-purchase-content"),
+    APP_EXTENSION("com.apple.product-type.app-extension");
+
+    public final String identifier;
+    private ProductType(String identifier) {
+      this.identifier = identifier;
+    }
+
+    @Override
+    public String toString() {
+      return identifier;
+    }
+  }
+
+  private final String name;
+  private final ProductType productType;
+  private final List<PBXTargetDependency> dependencies;
+  private final List<PBXBuildPhase> buildPhases;
+  private final XCConfigurationList buildConfigurationList;
+  @Nullable private String productName;
+  @Nullable private PBXFileReference productReference;
+
+  public PBXTarget(String name, ProductType productType) {
+    this.name = Preconditions.checkNotNull(name);
+    this.productType = Preconditions.checkNotNull(productType);
+    this.dependencies = Lists.newArrayList();
+    this.buildPhases = Lists.newArrayList();
+    this.buildConfigurationList = new XCConfigurationList();
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public ProductType getProductType() {
+    return productType;
+  }
+
+  public List<PBXTargetDependency> getDependencies() {
+    return dependencies;
+  }
+
+  public List<PBXBuildPhase> getBuildPhases() {
+    return buildPhases;
+  }
+
+  public XCConfigurationList getBuildConfigurationList() {
+    return buildConfigurationList;
+  }
+
+  @Nullable
+  public String getProductName() {
+    return productName;
+  }
+
+  public void setProductName(String productName) {
+    this.productName = productName;
+  }
+
+  @Nullable
+  public PBXFileReference getProductReference() {
+    return productReference;
+  }
+
+  public void setProductReference(PBXFileReference v) {
+    productReference = v;
+  }
+
+  @Override
+  public String isa() {
+    return "PBXTarget";
+  }
+
+  @Override
+  public int stableHash() {
+    return name.hashCode();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("name", name);
+    if (productType != null) {
+      s.addField("productType", productType.toString());
+    }
+    if (productName != null) {
+      s.addField("productName", productName);
+    }
+    if (productReference != null) {
+      s.addField("productReference", productReference);
+    }
+    s.addField("dependencies", dependencies);
+    s.addField("buildPhases", buildPhases);
+    if (buildConfigurationList != null) {
+      s.addField("buildConfigurationList", buildConfigurationList);
+    }
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTargetDependency.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTargetDependency.java
new file mode 100644
index 0000000000..164e196248
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXTargetDependency.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Preconditions;
+
+/**
+ * Element of the {@link PBXTarget#dependencies}. Represents a dependency of one target upon another
+ * target.
+ */
+public class PBXTargetDependency extends PBXProjectItem {
+  private final PBXContainerItemProxy targetProxy;
+
+  public PBXTargetDependency(PBXContainerItemProxy targetProxy) {
+    this.targetProxy = Preconditions.checkNotNull(targetProxy);
+  }
+
+  @Override
+  public String isa() {
+    return "PBXTargetDependency";
+  }
+
+  public PBXContainerItemProxy getTargetProxy() {
+    return targetProxy;
+  }
+
+  @Override
+  public int stableHash() {
+    return targetProxy.stableHash();
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    s.addField("targetProxy", getTargetProxy());
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXVariantGroup.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXVariantGroup.java
new file mode 100644
index 0000000000..b1e351aeb9
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/PBXVariantGroup.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2014-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.google.common.base.Preconditions;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+
+import java.util.Objects;
+
+import javax.annotation.Nullable;
+
+public class PBXVariantGroup extends PBXGroup {
+
+  private final LoadingCache<VirtualNameAndSourceTreePath, PBXFileReference>
+      variantFileReferencesByNameAndSourceTreePath;
+
+  public PBXVariantGroup(String name, @Nullable String path, SourceTree sourceTree) {
+    super(name, path, sourceTree);
+
+    variantFileReferencesByNameAndSourceTreePath = CacheBuilder.newBuilder().build(
+        new CacheLoader<VirtualNameAndSourceTreePath, PBXFileReference>() {
+          @Override
+          public PBXFileReference load(VirtualNameAndSourceTreePath key) throws Exception {
+            PBXFileReference ref = new PBXFileReference(
+                key.getVirtualName(),
+                key.getSourceTreePath().getPath().toString(),
+                key.getSourceTreePath().getSourceTree());
+            getChildren().add(ref);
+            return ref;
+          }
+        });
+  }
+
+  public PBXFileReference getOrCreateVariantFileReferenceByNameAndSourceTreePath(
+      String virtualName,
+      SourceTreePath sourceTreePath) {
+    VirtualNameAndSourceTreePath key =
+        new VirtualNameAndSourceTreePath(virtualName, sourceTreePath);
+    return variantFileReferencesByNameAndSourceTreePath.getUnchecked(key);
+  }
+
+  @Override
+  public String isa() {
+    return "PBXVariantGroup";
+  }
+
+  private static class VirtualNameAndSourceTreePath {
+    private final String virtualName;
+    private final SourceTreePath sourceTreePath;
+
+    public VirtualNameAndSourceTreePath(String virtualName, SourceTreePath sourceTreePath) {
+      this.virtualName = Preconditions.checkNotNull(virtualName);
+      this.sourceTreePath = Preconditions.checkNotNull(sourceTreePath);
+    }
+
+    public String getVirtualName() {
+      return virtualName;
+    }
+
+    public SourceTreePath getSourceTreePath() {
+      return sourceTreePath;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+      if (!(other instanceof VirtualNameAndSourceTreePath)) {
+        return false;
+      }
+
+      VirtualNameAndSourceTreePath that = (VirtualNameAndSourceTreePath) other;
+      return Objects.equals(this.virtualName, that.virtualName) &&
+          Objects.equals(this.sourceTreePath, that.sourceTreePath);
+    }
+
+    @Override
+    public int hashCode() {
+      return Objects.hash(virtualName, sourceTreePath);
+    }
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/SourceTreePath.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/SourceTreePath.java
new file mode 100644
index 0000000000..dc49f76bb8
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/SourceTreePath.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.google.common.base.Preconditions;
+
+import java.nio.file.Path;
+import java.util.Objects;
+
+/**
+ * Utility class representing a tuple of (SourceTree, Path) used for uniquely describing a file
+ * reference in a group.
+ */
+public class SourceTreePath {
+  private final PBXReference.SourceTree sourceTree;
+  private final Path path;
+
+  public SourceTreePath(PBXReference.SourceTree sourceTree, Path path) {
+    this.sourceTree = Preconditions.checkNotNull(sourceTree);
+    Preconditions.checkState(
+        path != null && path.toString().length() > 0,
+        "A path to a file cannot be null or empty");
+    path = path.normalize();
+    Preconditions.checkState(path.toString().length() > 0, "A path to a file cannot be empty");
+    this.path = path;
+  }
+
+  public PBXReference.SourceTree getSourceTree() {
+    return sourceTree;
+  }
+
+  public Path getPath() {
+    return path;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(sourceTree, path);
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null || !(other instanceof SourceTreePath)) {
+      return false;
+    }
+
+    SourceTreePath that = (SourceTreePath) other;
+    return Objects.equals(this.sourceTree, that.sourceTree) &&
+        Objects.equals(this.path, that.path);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCBuildConfiguration.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCBuildConfiguration.java
new file mode 100644
index 0000000000..f55ccfc933
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCBuildConfiguration.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import javax.annotation.Nullable;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+
+/**
+ * Build configuration containing a file reference ton an xcconfig file and additional inline
+ * settings.
+ */
+public class XCBuildConfiguration extends PBXBuildStyle {
+  @Nullable private PBXFileReference baseConfigurationReference;
+
+  public XCBuildConfiguration(String name) {
+    super(name);
+  }
+
+  @Nullable
+  public PBXFileReference getBaseConfigurationReference() {
+    return baseConfigurationReference;
+  }
+  public void setBaseConfigurationReference(PBXFileReference v) {
+    baseConfigurationReference = v;
+  }
+
+  @Override
+  public String isa() {
+    return "XCBuildConfiguration";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    if (baseConfigurationReference != null) {
+      s.addField("baseConfigurationReference", baseConfigurationReference);
+    }
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCConfigurationList.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCConfigurationList.java
new file mode 100644
index 0000000000..048ffa7aeb
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCConfigurationList.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Optional;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.Lists;
+
+import java.util.Comparator;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * List of build configurations.
+ */
+public class XCConfigurationList extends PBXProjectItem {
+  private List<XCBuildConfiguration> buildConfigurations;
+  private Optional<String> defaultConfigurationName;
+  private boolean defaultConfigurationIsVisible;
+
+  private final LoadingCache<String, XCBuildConfiguration> buildConfigurationsByName;
+
+  public XCConfigurationList() {
+    buildConfigurations = Lists.newArrayList();
+    defaultConfigurationName = Optional.absent();
+    defaultConfigurationIsVisible = false;
+
+    buildConfigurationsByName = CacheBuilder.newBuilder().build(
+        new CacheLoader<String, XCBuildConfiguration>() {
+          @Override
+          public XCBuildConfiguration load(String key) throws Exception {
+            XCBuildConfiguration configuration = new XCBuildConfiguration(key);
+            buildConfigurations.add(configuration);
+            return configuration;
+          }
+        });
+  }
+
+  public LoadingCache<String, XCBuildConfiguration> getBuildConfigurationsByName() {
+    return buildConfigurationsByName;
+  }
+
+  @Override
+  public String isa() {
+    return "XCConfigurationList";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    Collections.sort(buildConfigurations, new Comparator<XCBuildConfiguration>() {
+      @Override
+      public int compare(XCBuildConfiguration o1, XCBuildConfiguration o2) {
+        return o1.getName().compareTo(o2.getName());
+      }
+    });
+    s.addField("buildConfigurations", buildConfigurations);
+
+    if (defaultConfigurationName.isPresent()) {
+      s.addField("defaultConfigurationName", defaultConfigurationName.get());
+    }
+    s.addField("defaultConfigurationIsVisible", defaultConfigurationIsVisible);
+  }
+}
diff --git a/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCVersionGroup.java b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCVersionGroup.java
new file mode 100644
index 0000000000..acd8458a97
--- /dev/null
+++ b/third_party/java/buck-ios-support/java/com/facebook/buck/apple/xcode/xcodeproj/XCVersionGroup.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2013-present Facebook, Inc.
+ *
+ * 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.facebook.buck.apple.xcode.xcodeproj;
+
+import com.facebook.buck.apple.xcode.XcodeprojSerializer;
+import com.google.common.base.Optional;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.CacheLoader;
+import com.google.common.cache.LoadingCache;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+import com.google.common.io.Files;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+public class XCVersionGroup extends PBXReference {
+  private static final ImmutableMap<String, String> FILE_EXTENSION_TO_UTI = ImmutableMap.of(
+      "xcdatamodeld", "wrapper.xcdatamodel");
+
+  private Optional<PBXFileReference> currentVersion;
+
+  private final List<PBXFileReference> children;
+
+  private final LoadingCache<SourceTreePath, PBXFileReference> fileReferencesBySourceTreePath;
+
+  public XCVersionGroup(String name, String path, SourceTree sourceTree) {
+    super(name, path, sourceTree);
+    children = Lists.newArrayList();
+
+    fileReferencesBySourceTreePath = CacheBuilder.newBuilder().build(
+        new CacheLoader<SourceTreePath, PBXFileReference>() {
+          @Override
+          public PBXFileReference load(SourceTreePath key) throws Exception {
+            PBXFileReference ref = new PBXFileReference(
+                key.getPath().getFileName().toString(),
+                key.getPath().toString(),
+                key.getSourceTree());
+            children.add(ref);
+            return ref;
+          }
+        });
+
+    currentVersion = Optional.absent();
+  }
+
+  /**
+   * The file type of the version group, which is the type of each file. If the current version is
+   * set, then this method returns the type of the item that is the current version. Otherwise, it
+   * attempts to autodetect the type based on the name, or {@link Optional#absent()} if it could
+   * not be autodetected.
+   */
+  public Optional<String> getVersionGroupType() {
+    if (currentVersion.isPresent()) {
+      return currentVersion.get().getExplicitFileType();
+    }
+    return Optional.fromNullable(FILE_EXTENSION_TO_UTI.get(Files.getFileExtension(getName())));
+  }
+
+  public Optional<PBXFileReference> getCurrentVersion() { return currentVersion; }
+
+  public void setCurrentVersion(Optional<PBXFileReference> v) { currentVersion = v; }
+
+  public List<PBXFileReference> getChildren() {
+    return children;
+  }
+
+  public PBXFileReference getOrCreateFileReferenceBySourceTreePath(SourceTreePath sourceTreePath) {
+    return fileReferencesBySourceTreePath.getUnchecked(sourceTreePath);
+  }
+
+  @Override
+  public String isa() {
+    return "XCVersionGroup";
+  }
+
+  @Override
+  public void serializeInto(XcodeprojSerializer s) {
+    super.serializeInto(s);
+
+    Collections.sort(children, new Comparator<PBXReference>() {
+          @Override
+          public int compare(PBXReference o1, PBXReference o2) {
+          return o1.getName().compareTo(o2.getName());
+        }
+      });
+    s.addField("children", children);
+
+
+    if (currentVersion.isPresent()) {
+      s.addField("currentVersion", currentVersion.get());
+    }
+
+    Optional<String> versionGroupType = getVersionGroupType();
+    if (versionGroupType.isPresent()) {
+      s.addField("versionGroupType", versionGroupType.get());
+    }
+  }
+}