Trim whitespace from filename

This avoids an OSError when the book's metadata has whitespace at the end of it.
2020-08-09 01:08:00 -04:00 · 2020-08-09 01:08:00 -04:00 · 969105b205
commit 969105b205
parent 1a1d105fae
1 changed files with 1 additions and 1 deletions
--- a/cps/helper.py
+++ b/cps/helper.py
@ -254,7 +254,7 @@ def get_valid_filename(value, replace_whitespace=True):
        value = re.sub(r'[\*\+:\\\"/<>\?]+', u'_', value, flags=re.U)
        # pipe has to be replaced with comma
        value = re.sub(r'[\|]+', u',', value, flags=re.U)
-    value = value[:128]
+    value = value[:128].strip()
    if not value:
        raise ValueError("Filename cannot be empty")
    if sys.version_info.major == 3: