Remove dependency of NaCl untarred toolchain from NaCl SDK Tests.

native_client_sdk/src/test_all.py

Index: native_client_sdk/src/test_all.py
diff --git a/native_client_sdk/src/test_all.py b/native_client_sdk/src/test_all.py
index c91e64e59c98eafa0aec8aef9da2c029b367b956..034be0db656190beb0c011d104fdab7f723f8c50 100755
--- a/native_client_sdk/src/test_all.py
+++ b/native_client_sdk/src/test_all.py
@@ -4,14 +4,26 @@
 # found in the LICENSE file.
 
 import os
+import shutil
 import sys
+import tarfile
 import unittest
 
 # add tools folder to sys.path
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
-sys.path.append(os.path.join(SCRIPT_DIR, 'tools', 'tests'))
-sys.path.append(os.path.join(SCRIPT_DIR, 'tools', 'lib', 'tests'))
-sys.path.append(os.path.join(SCRIPT_DIR, 'build_tools', 'tests'))
+TOOLS_DIR = os.path.join(SCRIPT_DIR, 'tools')
+BUILD_TOOLS_DIR = os.path.join(SCRIPT_DIR, 'build_tools')
+sys.path.append(TOOLS_DIR)
+sys.path.append(os.path.join(TOOLS_DIR, 'tests'))
+sys.path.append(os.path.join(TOOLS_DIR, 'lib', 'tests'))
+sys.path.append(BUILD_TOOLS_DIR)
+sys.path.append(os.path.join(BUILD_TOOLS_DIR, 'tests'))
+
+import build_paths
+import getos
+
+TOOLCHAIN_OUT = os.path.join(build_paths.OUT_DIR, 'sdk_tests', 'toolchain')
+NACL_X86_GLIBC_TOOLCHAIN = os.path.join(TOOLCHAIN_OUT, 'nacl_x86_glibc')
 
 TEST_MODULES = [
     'create_html_test',
@@ -35,7 +47,45 @@ TEST_MODULES = [
     'verify_ppapi_test',
 ]
 
+def ExtractToolchain():
+  # TODO(dyen): This function is basically all temporary code. After the DEPS
+  # roll, replace this untar with package_version.py which will do the
+  # untarring and be able to check whether or not the toolchain is out of date.
+  platform_name = getos.GetPlatform()
+  nacl_x86_glibc_tar = os.path.join(build_paths.NACL_DIR, 'toolchain', '.tars',
+                                    'toolchain_%s_x86.tar.bz2' % platform_name)
+  assert os.path.isfile(nacl_x86_glibc_tar), 'Could not locate toolchain tar'
+
+  stamp_file = os.path.join(NACL_X86_GLIBC_TOOLCHAIN, 'extract.stamp')
+  if (not os.path.isfile(stamp_file) or
+      os.path.getmtime(stamp_file) < os.path.getmtime(nacl_x86_glibc_tar)):
+
+    print 'Extracting nacl_x86_glibc...'
+    temp_dir = os.path.join(TOOLCHAIN_OUT, 'temp')
+    if os.path.isdir(temp_dir):
+      shutil.rmtree(temp_dir)
+    os.makedirs(temp_dir)
+    with tarfile.open(nacl_x86_glibc_tar) as f:
+      f.extractall(temp_dir)
+
+    if os.path.isdir(NACL_X86_GLIBC_TOOLCHAIN):
+      shutil.rmtree(NACL_X86_GLIBC_TOOLCHAIN)
+    parent_dir = os.path.dirname(NACL_X86_GLIBC_TOOLCHAIN)
+    if not os.path.isdir(parent_dir):
+      os.makedirs(parent_dir)
+
+    extracted_path = os.path.join(temp_dir, 'toolchain',
+                                  '%s_x86' % platform_name)
+    os.rename(extracted_path, NACL_X86_GLIBC_TOOLCHAIN)
+
+    with open(stamp_file, 'wt') as f:
+      f.write(nacl_x86_glibc_tar)
+
 def main():
+  # Some of the unit tests utilize nacl_x86_glibc. Untar a copy in the output
+  # directory for the tests to use.
+  ExtractToolchain()
+
   suite = unittest.TestSuite()
   for module_name in TEST_MODULES:
     module = __import__(module_name)