Merge pull request #59 from davidfokkema/fix-tomldecodeerror

Fix unicode decoding errors on Windows in TOML config

src/tailor/config.py

@@ -18,8 +18,12 @@ def read_config():
  """Read configuration file."""
  config_path = get_config_path()
  if config_path.is_file():
- with open(config_path, "rb") as f:
- return tomli.load(f)
+ try:
+ with open(config_path, "rb") as f:
+ return tomli.load(f)
+ except (tomli.TOMLDecodeError, UnicodeDecodeError):
+ # error parsing TOML
+ return {}
  else:
  return {}
 
@@ -32,11 +36,13 @@ def write_config(config):
  """
  create_config_dir()
  config_path = get_config_path()
- toml_config = tomli_w.dumps(config)
- with open(config_path, "w") as f:
+ # make sure that TOML conversion works before opening file
+ tomli_w.dumps(config)
+ with open(config_path, "wb") as f:
  # separate TOML generation from writing to file, or an exception
  # generating TOML will result in an empty file
- f.write(toml_config)
+ # correct TOML unicode handling requires writing bytes
+ tomli_w.dump(config, f)
 
 
 def get_config_path():