Recipe package system.

recipe_engine/third_party/setuptools/tests/environment.py

Index: recipe_engine/third_party/setuptools/tests/environment.py
diff --git a/recipe_engine/third_party/setuptools/tests/environment.py b/recipe_engine/third_party/setuptools/tests/environment.py
new file mode 100644
index 0000000000000000000000000000000000000000..c8d0e66921733119fd07fd81c540e0369b3f4ca7
--- /dev/null
+++ b/recipe_engine/third_party/setuptools/tests/environment.py
@@ -0,0 +1,118 @@
+import os
+import zipfile
+import sys
+import tempfile
+import unittest
+import shutil
+import stat
+import unicodedata
+
+from subprocess import Popen as _Popen, PIPE as _PIPE
+
+
+def _remove_dir(target):
+
+    #on windows this seems to a problem
+    for dir_path, dirs, files in os.walk(target):
+        os.chmod(dir_path, stat.S_IWRITE)
+        for filename in files:
+            os.chmod(os.path.join(dir_path, filename), stat.S_IWRITE)
+    shutil.rmtree(target)
+
+
+class ZippedEnvironment(unittest.TestCase):
+
+    datafile = None
+    dataname = None
+    old_cwd = None
+
+    def setUp(self):
+        if self.datafile is None or self.dataname is None:
+            return
+
+        if not os.path.isfile(self.datafile):
+            self.old_cwd = None
+            return
+
+        self.old_cwd = os.getcwd()
+
+        self.temp_dir = tempfile.mkdtemp()
+        zip_file, source, target = [None, None, None]
+        try:
+            zip_file = zipfile.ZipFile(self.datafile)
+            for files in zip_file.namelist():
+                zip_file.extract(files, self.temp_dir)
+        finally:
+            if zip_file:
+                zip_file.close()
+            del zip_file
+
+        os.chdir(os.path.join(self.temp_dir, self.dataname))
+
+    def tearDown(self):
+        #Assume setUp was never completed
+        if self.dataname is None or self.datafile is None:
+            return
+
+        try:
+            if self.old_cwd:
+                os.chdir(self.old_cwd)
+                _remove_dir(self.temp_dir)
+        except OSError:
+            #sigh?
+            pass
+
+
+def _which_dirs(cmd):
+    result = set()
+    for path in os.environ.get('PATH', '').split(os.pathsep):
+        filename = os.path.join(path, cmd)
+        if os.access(filename, os.X_OK):
+            result.add(path)
+    return result
+
+
+def run_setup_py(cmd, pypath=None, path=None,
+                 data_stream=0, env=None):
+    """
+    Execution command for tests, separate from those used by the
+    code directly to prevent accidental behavior issues
+    """
+    if env is None:
+        env = dict()
+        for envname in os.environ:
+            env[envname] = os.environ[envname]
+
+    #override the python path if needed
+    if pypath is not None:
+        env["PYTHONPATH"] = pypath
+
+    #overide the execution path if needed
+    if path is not None:
+        env["PATH"] = path
+    if not env.get("PATH", ""):
+        env["PATH"] = _which_dirs("tar").union(_which_dirs("gzip"))
+        env["PATH"] = os.pathsep.join(env["PATH"])
+
+    cmd = [sys.executable, "setup.py"] + list(cmd)
+
+    # http://bugs.python.org/issue8557
+    shell = sys.platform == 'win32'
+
+    try:
+        proc = _Popen(
+            cmd, stdout=_PIPE, stderr=_PIPE, shell=shell, env=env,
+        )
+
+        data = proc.communicate()[data_stream]
+    except OSError:
+        return 1, ''
+
+    #decode the console string if needed
+    if hasattr(data,  "decode"):
+        # use the default encoding
+        data = data.decode()
+        data = unicodedata.normalize('NFC', data)
+
+    #communciate calls wait()
+    return proc.returncode, data