better handle set but empty environment variable

colcon / colcon-argcomplete

Completion for colcon command lines using argcomplete

http://colcon.readthedocs.io

Apache License 2.0

2 stars 3 forks source link

better handle set but empty environment variable #31

Closed dirk-thomas closed 4 years ago

dirk-thomas commented 4 years ago

Since the environment variable needs to specify a path using an empty value doesn't make sense. Instead consider an empty value to be the same as an unset environment variable.