Proper case windows

news/3104.bugfix

@@ -0,0 +1 @@
+Fix the path casing issue that makes `pipenv clean` fail on Windows

pipenv/project.py

@@ -4,6 +4,7 @@
 import os
 import re
 import sys
+import glob
 import base64
 import itertools
 import fnmatch
@@ -53,14 +54,18 @@ def _normalized(p):
     if p is None:
         return None
     loc = vistir.compat.Path(p)
-    if loc.is_absolute():
-        return normalize_drive(str(loc))
-    else:
+    if not loc.is_absolute():
         try:
             loc = loc.resolve()
         except OSError:
             loc = loc.absolute()
-        return normalize_drive(str(loc))
+    # Recase the path properly on Windows. From https://stackoverflow.com/a/35229734/5043728
+    if os.name == 'nt':
+        matches = glob.glob(re.sub(r'([^:/\\])(?=[/\\]|$)', r'[\1]', str(loc)))
+        path_str = matches and matches[0] or str(loc)
+    else:
+        path_str = str(loc)
+    return normalize_drive(path_str)
 
 
 DEFAULT_NEWLINES = u"\n"

tests/integration/test_windows.py

@@ -65,3 +65,16 @@ def test_local_path_windows_forward_slash(PipenvInstance, pypi):
     with PipenvInstance(pypi=pypi, chdir=True) as p:
         c = p.pipenv('install "{0}"'.format(whl.as_posix()))
         assert c.return_code == 0
+
+
+@pytest.mark.cli
+def test_pipenv_clean_windows(PipenvInstance, pypi):
+    with PipenvInstance(pypi=pypi, chdir=True) as p:
+        c = p.pipenv('install requests')
+        assert c.return_code == 0
+        c = p.pipenv('run pip install click')
+        assert c.return_code == 0
+
+        c = p.pipenv('clean --dry-run')
+        assert c.return_code == 0
+        assert 'click' in c.out.strip()