jyapayne/compose
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Make environment variables without a value the same as docker-cli.

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Signed-off-by: Daniel Nephin <dnephin@docker.com>
This commit is contained in:
Daniel Nephin 2016-02-22 17:47:51 -08:00
commit d451578152
7 changed files with 28 additions and 12 deletions
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compose/config/config.py
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@ -827,7 +827,7 @@ def resolve_env_var(key, val):
elif key in os.environ:
return key, os.environ[key]
else:
return key, ''
return key, None
def env_vars_from_file(filename):