Handle dist-info installed wheel directories

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

pkginfo/utils.py

@@ -51,7 +51,13 @@ def get_metadata(path_or_module, metadata_version=None):
             pass
 
     if os.path.isdir(path_or_module):
+        try:
+            return Wheel(path_or_module, metadata_version)
+        except (ValueError, IOError): #pragma NO COVER
+            pass
+
         try:
             return Develop(path_or_module, metadata_version)
         except (ValueError, IOError): #pragma NO COVER
             pass
+

pkginfo/wheel.py

@@ -26,8 +26,19 @@ def read(self):
 
             def read_file(name):
                 return archive.read(name)
+
+            close = archive.close
+
+        elif fqn.endswith('.dist-info'):
+            names = [os.path.join(fqn, p) for p in os.listdir(fqn)]
+
+            def read_file(name):
+                return open(name).read()
+
+            close = lambda : 0
+
         else:
-            raise ValueError('Not a known archive format: %s' % fqn)
+            raise ValueError('Not a known wheel archive format or installed .dist-info: %s' % fqn)
 
         try:
             tuples = [x.split('/') for x in names if 'METADATA' in x]
@@ -38,7 +49,7 @@ def read_file(name):
                 if b'Metadata-Version' in data:
                     return data
         finally:
-            archive.close()
+            close()
 
         raise ValueError('No METADATA in archive: %s' % fqn)