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| -rw-r--r-- | CHANGES.rst | 4 | ||||
| -rw-r--r-- | coverage/sqldata.py | 9 |
2 files changed, 12 insertions, 1 deletions
diff --git a/CHANGES.rst b/CHANGES.rst index 0c426023..84672e28 100644 --- a/CHANGES.rst +++ b/CHANGES.rst @@ -29,7 +29,11 @@ Unreleased process' file with no suffix when using ``--append``. This is now fixed, closing `issue 880`_. +- Fixed a problem on Windows when the current directory is changed to a + different drive (`issue 895`_). Thanks, Olivier Grisel. + .. _issue 880: https://github.com/nedbat/coveragepy/issues/880 +.. _issue 895: https://github.com/nedbat/coveragepy/issues/895 .. _changes_50: diff --git a/coverage/sqldata.py b/coverage/sqldata.py index 56468e64..01f5ce01 100644 --- a/coverage/sqldata.py +++ b/coverage/sqldata.py @@ -979,7 +979,14 @@ class SqliteDb(SimpleReprMixin): # SQLite on Windows on py2 won't open a file if the filename argument # has non-ascii characters in it. Opening a relative file name avoids # a problem if the current directory has non-ascii. - filename = os.path.relpath(self.filename) + try: + filename = os.path.relpath(self.filename) + except ValueError: + # ValueError can be raised under Windows when os.getcwd() returns a + # folder from a different drive than the drive of self.filename in + # which case we keep the original value of self.filename unchanged, + # hoping that we won't face the non-ascii directory problem. + filename = self.filename # It can happen that Python switches threads while the tracer writes # data. The second thread will also try to write to the data, # effectively causing a nested context. However, given the idempotent |