simple-cmd-args: Simple command args parsing and execution

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This a smaller wrapper over optparse-applicative which which allows combining the args parsers directly with IO commands, avoiding typical command type boilerplate. Also provides a few option Mod functions.

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Versions 0.1.0, 0.1.0,, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7
Change log
Dependencies base (>=4 && <5), optparse-applicative, semigroups [details]
License BSD-3-Clause
Copyright 2019 Jens Petersen
Author Jens Petersen
Category System
Home page
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Source repo head: git clone
Uploaded by JensPetersen at 2019-02-20T04:33:27Z



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Readme for simple-cmd-args-0.1.0

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Hackage BSD license Stackage Lts Stackage Nightly Build status

A thin layer over optparse-applicative that avoids type plumbing for the common use case of a commandline tool with subcommands, by using Parser (IO ())




import SimpleCmdArgs
import Control.Applicative (some)
import SimpleCmd (cmd_)

main =
  simpleCmdArgs Nothing "my example tool" "Longer description..." $
    [ Subcommand "echo" (putStrLn <$> strArg "NAME") "Print name"
    , Subcommand "ls" (cmd_ "ls" <$> some (strArg "FILE...")) "Touch FILE"