1 files changed, 38 insertions, 0 deletions
diff --git a/docker/credentials/utils.py b/docker/credentials/utils.py
new file mode 100644
index 0000000..3f720ef
--- /dev/null
+++ b/docker/credentials/utils.py
@@ -0,0 +1,38 @@
+import distutils.spawn
+import os
+import sys
+
+
+def find_executable(executable, path=None):
+    """
+    As distutils.spawn.find_executable, but on Windows, look up
+    every extension declared in PATHEXT instead of just `.exe`
+    """
+    if sys.platform != 'win32':
+        return distutils.spawn.find_executable(executable, path)
+
+    if path is None:
+        path = os.environ['PATH']
+
+    paths = path.split(os.pathsep)
+    extensions = os.environ.get('PATHEXT', '.exe').split(os.pathsep)
+    base, ext = os.path.splitext(executable)
+
+    if not os.path.isfile(executable):
+        for p in paths:
+            for ext in extensions:
+                f = os.path.join(p, base + ext)
+                if os.path.isfile(f):
+                    return f
+        return None
+    else:
+        return executable
+
+
+def create_environment_dict(overrides):
+    """
+    Create and return a copy of os.environ with the specified overrides
+    """
+    result = os.environ.copy()
+    result.update(overrides or {})
+    return result