Add xcrunwrapper to deal with DEVELOPER_DIR and SDKROOT.

Replace uses of $SDKROOT and $DEVELOPER_DIR values in compile paths with __DEVELOPER_DIR__ and __SDKROOT__ to that xcrunwrapper can deal with them appropriately.

RELNOTES:none

--
MOS_MIGRATED_REVID=107259512

3 files changed, 75 insertions, 0 deletions

diff --git a/src/tools/xcode/xcrunwrapper/BUILD b/src/tools/xcode/xcrunwrapper/BUILD
new file mode 100644
index 0000000000..e8ea8594a8
--- /dev/null
+++ b/src/tools/xcode/xcrunwrapper/BUILD
@@ -0,0 +1,11 @@
+package(default_visibility = ["//src/test:__subpackages__"])
+
+filegroup(
+    name = "srcs",
+    srcs = glob(["**"]),
+)
+
+sh_binary(
+    name = "xcrunwrapper",
+    srcs = ["xcrunwrapper.sh"],
+)
diff --git a/src/tools/xcode/xcrunwrapper/README b/src/tools/xcode/xcrunwrapper/README
new file mode 100644
index 0000000000..d76642186e
--- /dev/null
+++ b/src/tools/xcode/xcrunwrapper/README
@@ -0,0 +1,7 @@
+xcrunwrapper runs the command passed to it using xcrun.
+
+It replaces __DEVELOPER_DIR__ with $DEVELOPER_DIR (or reasonable default)
+and __SDKROOT__ with a valid path based on SDKROOT (or reasonable default).
+
+xcrun only runs on Darwin, so xcrunwrapper only runs on Darwin.
+
diff --git a/src/tools/xcode/xcrunwrapper/xcrunwrapper.sh b/src/tools/xcode/xcrunwrapper/xcrunwrapper.sh
new file mode 100755
index 0000000000..dfb36aa4ef
--- /dev/null
+++ b/src/tools/xcode/xcrunwrapper/xcrunwrapper.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+#
+# Copyright 2015 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# xcrunwrapper runs the command passed to it using xcrun.
+# It replaces __BAZEL_XCODE_DEVELOPER_DIR__ with $DEVELOPER_DIR (or reasonable
+# default) and __BAZEL_XCODE_SDKROOT__ with a valid path based on SDKROOT (or
+# reasonable default).
+# These values (__BAZEL_XCODE_*) are a shared secret withIosSdkCommands.java.
+
+set -eu
+
+# Pick values for DEVELOPER_DIR and SDKROOT as appropriate (if they weren't set)
+
+WRAPPER_DEVDIR="${DEVELOPER_DIR:-}"
+if [[ -z "${WRAPPER_DEVDIR}" ]] ; then
+  WRAPPER_DEVDIR="$(xcode-select -p)"
+fi
+
+# TODO(blaze-team): Remove this once all build environments are setting SDKROOT
+# for us.
+WRAPPER_SDKROOT="${SDKROOT:-}"
+if [[ -z "${WRAPPER_SDKROOT:-}" ]] ; then
+  WRAPPER_SDK=iphonesimulator
+  for ARG in "$@" ; do
+    case "${ARG}" in
+      armv6|armv7|armv7s|arm64)
+        WRAPPER_SDK=iphoneos
+        ;;
+      i386|x86_64)
+        WRAPPER_SDK=iphonesimulator
+        ;;
+    esac
+  done
+  WRAPPER_SDKROOT="$(/usr/bin/xcrun --show-sdk-path --sdk ${WRAPPER_SDK})"
+fi
+
+UPDATEDARGS=()
+for ARG in "$@" ; do
+  ARG="${ARG//__BAZEL_XCODE_DEVELOPER_DIR__/${WRAPPER_DEVDIR}}"
+  ARG="${ARG//__BAZEL_XCODE_SDKROOT__/${WRAPPER_SDKROOT}}"
+  UPDATEDARGS+=("${ARG}")
+done
+
+/usr/bin/xcrun "${UPDATEDARGS[@]}"