cli is a library for implementing powerful command-line interfaces in Go. cli is the library that powers the CLI for Packer and Serf.
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Easy sub-command based CLIs:
cli foo,cli bar, etc. -
Automatic help generation for listing subcommands
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Automatic help flag recognition of
-h,--help, etc. -
Helpers for interacting with the terminal, such as outputting information, asking for input, etc. These are optional, you can always interact with the terminal however you choose.
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Use of Go interfaces/types makes augmenting various parts of the library a piece of cake.