fix: */foo matches "foo/x.py", to help with combining relative file names. #991

2 files changed, 3 insertions, 1 deletions

diff --git a/coverage/files.py b/coverage/files.py
index 4475f2f1..87a18bc2 100644
--- a/coverage/files.py
+++ b/coverage/files.py
@@ -296,6 +296,8 @@ def fnmatches_to_regex(patterns, case_insensitive=False, partial=False):
 
     """
     regexes = (fnmatch.translate(pattern) for pattern in patterns)
+    # */ at the start should also match nothing.
+    regexes = (re.sub(r"^\(\?s:\.\*(\\\\|/)", r"(?s:^(.*\1)?", regex) for regex in regexes)
     # Be agnostic: / can mean backslash or slash.
     regexes = (re.sub(r"/", r"[\\\\/]", regex) for regex in regexes)
 
diff --git a/coverage/misc.py b/coverage/misc.py
index e9b1b8eb..98a5d139 100644
--- a/coverage/misc.py
+++ b/coverage/misc.py
@@ -181,7 +181,7 @@ def bool_or_none(b):
 
 
 def join_regex(regexes):
-    """Combine a list of regexes into one that matches any of them."""
+    """Combine a series of regexes into one that matches any of them."""
     return "|".join(f"(?:{r})" for r in regexes)