Rollback of commit 87a58589d6770a6e9a0f998274bfe69f1feb6014.

*** Reason for rollback ***

The sandbox fix did not fix. More work is needed.

Fixes #1239

*** Original change description ***

Automated [] rollback of commit b4549fe8dfb29f87fd37b38bf21a5b4bef818b12.

*** Reason for rollback ***

Rollforward with fixes:
  - Quote single-quote in the environment exports
  - Exclude the following environment variables: _ and dotted names
  - Add the wrapper to the dependency of the crosstool chain so it gets shipped to the sandbox.

Hopefully after that we can cut a new release and have a homebrew package again #1177.

*** Original change description ***

Automated [] rollback of commit f1f24fc4b5aa83b7a4b872ec8f1c3a369799c081.

*** Reason...

***

--
MOS_MIGRATED_REVID=121665313

tools/cpp/BUILD.tpl

diff --git a/tools/cpp/BUILD.tpl b/tools/cpp/BUILD.tpl
index a67d049..036c7ec 100644
--- a/tools/cpp/BUILD.tpl
+++ b/tools/cpp/BUILD.tpl
@@ -13,11 +13,6 @@
     srcs = [],
 )
 
-filegroup(
-    name = "cc_wrapper",
-    srcs = ["cc_wrapper.sh"],
-)
-
 # This is the entry point for --crosstool_top.  Toolchains are found
 # by lopping off the name of --crosstool_top and searching for
 # the "${CPU}" entry in the toolchains attribute.
@@ -32,11 +27,11 @@
 cc_toolchain(
     name = "cc-compiler-%{name}",
     all_files = ":empty",
-    compiler_files = ":cc_wrapper",
+    compiler_files = ":empty",
     cpu = "local",
     dwp_files = ":empty",
     dynamic_runtime_libs = [":empty"],
-    linker_files = ":cc_wrapper",
+    linker_files = ":empty",
     objcopy_files = ":empty",
     static_runtime_libs = [":empty"],
     strip_files = ":empty",

tools/cpp/cc_configure.bzl

diff --git a/tools/cpp/cc_configure.bzl b/tools/cpp/cc_configure.bzl
index 18b8130..1250d23 100644
--- a/tools/cpp/cc_configure.bzl
+++ b/tools/cpp/cc_configure.bzl
@@ -50,7 +50,7 @@
   return default if result == None else str(result)
 
 
-def _get_tool_paths(repository_ctx, darwin):
+def _get_tool_paths(repository_ctx, darwin, cc):
   """Compute the path to the various tools."""
   return {k: _which(repository_ctx, k, "/usr/bin/" + k)
           for k in [
@@ -63,7 +63,7 @@
               "objdump",
               "strip",
           ]} + {
-              "gcc": "cc_wrapper.sh",
+              "gcc": cc,
               "ar": "/usr/bin/libtool"
                     if darwin else _which(repository_ctx, "ar", "/usr/bin/ar")
           }
@@ -289,24 +289,13 @@
   return cc
 
 
-def _tpl(repository_ctx, tpl, substitutions={}, out=None):
-  if not out:
-    out = tpl
+def _tpl(repository_ctx, tpl, substitutions={}):
   repository_ctx.template(
-      out,
+      tpl,
       Label("@bazel_tools//tools/cpp:%s.tpl" % tpl),
       substitutions)
 
 
-def _get_env(repository_ctx):
-  """Convert the environment in a list of export."""
-  env = repository_ctx.os.environ
-  return "\n".join([
-      "export %s='%s'" % (k, env[k].replace("'", "'\\''"))
-      for k in env
-      if k != "_" and k.find(".") == -1
-  ])
-
 def _impl(repository_ctx):
   repository_ctx.file("tools/cpp/empty.cc")
   cpu_value = _get_cpu_value(repository_ctx)
@@ -322,8 +311,9 @@
   else:
     darwin = cpu_value == "darwin"
     cc = _find_cc(repository_ctx)
+    crosstool_cc = "osx_cc_wrapper.sh" if darwin else str(cc)
     darwin = cpu_value == "darwin"
-    tool_paths = _get_tool_paths(repository_ctx, darwin)
+    tool_paths = _get_tool_paths(repository_ctx, darwin, crosstool_cc)
     crosstool_content = _crosstool_content(repository_ctx, cc, cpu_value, darwin)
     opt_content = _opt_content(darwin)
     dbg_content = _dbg_content()
@@ -331,10 +321,7 @@
         "%{name}": cpu_value,
         "%{supports_param_files}": "0" if darwin else "1"
     })
-    _tpl(repository_ctx,
-        "osx_cc_wrapper.sh" if darwin else "linux_cc_wrapper.sh",
-        {"%{cc}": str(cc), "%{env}": _get_env(repository_ctx)},
-        "cc_wrapper.sh")
+    _tpl(repository_ctx, "osx_cc_wrapper.sh", {"%{cc}": str(cc)})
     _tpl(repository_ctx, "CROSSTOOL", {
         "%{cpu}": cpu_value,
         "%{content}": _build_crosstool(crosstool_content) + "\n" +

tools/cpp/linux_cc_wrapper.sh.tpl

diff --git a/tools/cpp/linux_cc_wrapper.sh.tpl b/tools/cpp/linux_cc_wrapper.sh.tpl
deleted file mode 100644
index a83be50..0000000
--- a/tools/cpp/linux_cc_wrapper.sh.tpl
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/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.
-#
-# Ship the environment to the C++ action
-#
-set -eu
-
-# Set-up the environment
-%{env}
-
-# Call the C++ compiler
-%{cc} "$@"

tools/cpp/osx_cc_wrapper.sh.tpl

diff --git a/tools/cpp/osx_cc_wrapper.sh.tpl b/tools/cpp/osx_cc_wrapper.sh.tpl
index 5ea4b52c..5e66680 100644
--- a/tools/cpp/osx_cc_wrapper.sh.tpl
+++ b/tools/cpp/osx_cc_wrapper.sh.tpl
@@ -52,9 +52,6 @@
     fi
 done
 
-# Set-up the environment
-%{env}
-
 # Call the C++ compiler
 %{cc} "$@"