Move logging configuration to main().

[pkaleta]

The problem with the current code is that it fails w/ the following message when diff-cover tool is executed after fresh installation:

% diff-cover coverage/coverage.xml
No handlers could be found for logger "diff_cover.tool"

The reason is that the default logger is configured at the module level, when the diff_cover.tool is executed as a standalone script:

if __name__ == "__main__":
    logging.basicConfig(format='%(message)s')
    exit(main())

However the script that is present in bin after installation using pip install diff-cover==0.9.6 imports the main function, which doesn't contain the basicConfig call.

Also, in #42, it was suggested that basicConfig call is moved to the main.

Alternative would be to perform logger configuration in bin/diff-cover, if there's a reason not to place it in main?

[coveralls]

Coverage remained the same at 98.988% when pulling 7341031 on pkaleta:master into ebc4239 on Bachmann1234:master.

[pkaleta]

@Bachmann1234 Care to comment why this has been refused? I'd really like to get the underlying issue fixed.

[Bachmann1234]

Oh crap. Think I hit a button. I'll fix that

[Bachmann1234]

Sorry about that. Yeah, I'll mere and release tonight

[coveralls]

Coverage increased (+0.05%) to 99.036% when pulling 7341031 on pkaleta:master into ebc4239 on Bachmann1234:master.

[pkaleta]

Thanks!

[Bachmann1234]

Released! https://pypi.python.org/pypi/diff_cover/0.9.7 Thanks for the PR and sorry for the early confusion