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Implemented validation on CHEAT_HIGHLIGHT

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Implemnted an assertion that `CHEAT_HIGHLIGHT` (if set) contains a value
that is acceptible to `termcolors`. This happens only once, upon the
invokation of `__main__`. If the assertion fails, `cheat` terminates
with an exit code of `1`.
This commit is contained in:
Chris Lane 2019-01-11 16:26:57 -05:00
parent 730c488854
commit 28a2902e20
1 changed files with 14 additions and 0 deletions
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@ -37,10 +37,24 @@ Examples:
# require the dependencies
from cheat import sheets, sheet
from cheat.utils import colorize
from cheat.utils import die
from docopt import docopt
import os
if __name__ == '__main__':
# validate CHEAT_HIGHLIGHT values if set
colors = [
'grey' , 'red' , 'green' , 'yellow' ,
'blue' , 'magenta' , 'cyan' , 'white' ,
]
if (
os.environ.get('CHEAT_HIGHLIGHT') and
os.environ.get('CHEAT_HIGHLIGHT') not in colors
):
die("%s %s" %('CHEAT_HIGHLIGHT must be one of:', colors))
# parse the command-line options
options = docopt(__doc__, version='cheat 2.3.1')