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More helpful error messages for missing config

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This commit is contained in:
Mark Haines 2014-09-02 10:48:05 +01:00
parent ab0637c2c3
commit d45f89c95b
3 changed files with 29 additions and 6 deletions
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25
synapse/config/_base.py
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@ -21,6 +21,10 @@ import os
import yaml
class ConfigError(Exception):
pass
class Config(object):
def __init__(self, args):
pass
@ -29,8 +33,25 @@ class Config(object):
def abspath(file_path):
return os.path.abspath(file_path) if file_path else file_path
@staticmethod
def read_file(file_path):
@classmethod
def check_file(cls, file_path, config_name):
if file_path is None:
raise ConfigError(
"Missing config for %s."
" Try running again with --generate-config"
% (config_name,)
)
if not os.path.exists(file_path):
raise ConfigError(
"File % config for %s doesn't exist."
" Try running again with --generate-config"
% (config_name,)
)
return cls.abspath(file_path)
@classmethod
def read_file(cls, file_path, config_name):
cls.check_file(file_path, config_name)
with open(file_path) as file_stream:
return file_stream.read()