wip: #1280

Author: nedbat

coverage/python.py

@@ -151,7 +151,14 @@ def __init__(self, morf, coverage=None):
 
         filename = source_for_morf(morf)
 
-        super().__init__(canonical_filename(filename))
+        fname = filename
+        canonicalize = True
+        if self.coverage is not None:
+            if self.coverage.config.relative_files:
+                canonicalize = False
+        if canonicalize:
+            fname = canonical_filename(filename)
+        super().__init__(fname)
 
         if hasattr(morf, '__name__'):
             name = morf.__name__.replace(".", os.sep)

coverage/xmlreport.py

@@ -149,7 +149,8 @@ def xml_file(self, fr, analysis, has_arcs):
         # are populated later.  Note that a package == a directory.
         filename = fr.filename.replace("\\", "/")
         for source_path in self.source_paths:
-            source_path = files.canonical_filename(source_path)
+            if not self.config.relative_files:
+                source_path = files.canonical_filename(source_path)
             if filename.startswith(source_path.replace("\\", "/") + "/"):
                 rel_name = filename[len(source_path)+1:]
                 break