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convert: playlist: Handle errors on read/write

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operations of a playlist in M3UFile class, by catching any "OSError" and
raising util.FilesystemError.
This commit is contained in:
J0J0 Todos 2023-03-05 13:31:26 +01:00
parent 952aa0badd
commit 0884e67d35
1 changed files with 17 additions and 6 deletions
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23
beets/util/m3u.py
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@ -14,8 +14,9 @@
"""Provides utilities to read, write and manipulate m3u playlist files."""
import traceback
from beets.util import syspath, normpath, mkdirall
from beets.util import syspath, normpath, mkdirall, FilesystemError
class EmptyPlaylistError(Exception):
@ -39,8 +40,14 @@ class M3UFile():
def load(self):
"""Reads the m3u file from disk and sets the object's attributes."""
with open(syspath(self.path), "r", encoding="utf-8") as playlist_file:
raw_contents = playlist_file.readlines()
pl_normpath = normpath(self.path)
try:
with open(syspath(pl_normpath), "r", encoding="utf-8") as pl_file:
raw_contents = pl_file.readlines()
except OSError as exc:
raise FilesystemError(exc, 'read', (pl_normpath, ),
traceback.format_exc())
self.extm3u = True if raw_contents[0] == "#EXTM3U\n" else False
for line in raw_contents[1:]:
if line.startswith("#"):
@ -76,6 +83,10 @@ class M3UFile():
pl_normpath = normpath(self.path)
mkdirall(pl_normpath)
with open(syspath(pl_normpath), "w", encoding="utf-8") as playlist_file:
playlist_file.writelines('\n'.join(contents))
playlist_file.write('\n') # Final linefeed to prevent noeol file.
try:
with open(syspath(pl_normpath), "w", encoding="utf-8") as pl_file:
pl_file.writelines('\n'.join(contents))
pl_file.write('\n') # Final linefeed to prevent noeol file.
except OSError as exc:
raise FilesystemError(exc, 'create', (pl_normpath, ),
traceback.format_exc())