nemesis: a rake like task management tool

[ bsd3, library, tools ] [ Propose Tags ]
Versions 2009.6.12, 2009.6.13, 2009.6.13.1, 2009.6.13.2, 2009.6.14, 2009.6.14.1, 2009.6.14.2, 2009.6.14.3, 2009.6.24, 2009.6.25, 2009.8.4, 2009.8.16, 2009.8.17, 2009.8.18, 2009.10.7, 2010.10.4, 2010., 2011.6.12, 2011.6.19, 2011.10.12, 2012.5.24, 2012.5.24.1, 2012.12.18, 2013.6.13, 2013.6.16, 2013.6.22, 2013.7.27, 2014.5.19, 2015.5.4, 2016.3.19, 2018.1.27
Change log
Dependencies base (==4.*), containers, data‑default, directory, Glob (>=0.4), haskell98, mps (>=2009.7.4), mtl, old‑time, process, time [details]
License BSD-3-Clause
Author Wang, Jinjing
Maintainer Wang, Jinjing <>
Category Web
Home page
Uploaded by JinjingWang at Mon Aug 3 19:06:48 UTC 2009
Distributions NixOS:2018.1.27
Executables nemesis
Downloads 9151 total (87 in the last 30 days)
Rating (no votes yet) [estimated by rule of succession]
Your Rating
  • λ
  • λ
  • λ
Status Docs uploaded by user
Build status unknown [no reports yet]
Hackage Matrix CI

a rake like task management tool

[Skip to Readme]




Maintainer's Corner

For package maintainers and hackage trustees

Readme for nemesis-2009.8.4

[back to package description]

Nemesis: a rake like task management tool for haskell


nemesis = do

    [ "**/*.hi"
    , "**/*.o"
    , "manifest"
  task "dist" $ do
    sh "cabal clean"
    sh "cabal configure"
    sh "cabal sdist"

  task "i" (sh "ghci -isrc src/System/Nemesis.hs")

  task "manifest" $ do
    sh "find . | grep 'hs$' > manifest"



cabal update; cabal install nemesis


Put the following code into a file named Nemesis

nemesis = do

  -- desc is optional, it gives some description to the following task
  desc "Hunter attack macro"

  -- syntax: task "keyword: dependencies" io-action
  task "attack: pet-attack auto-attack" (putStrLn "attack macro done!")

  desc "Pet attack"
  task "pet-attack: mark" $ do
    sh "echo 'pet attack'"

  desc "Hunter's mark"
  task "mark" $ do
    sh "echo \"casting hunter's mark\""

  desc "Auto attack"
  task "auto-attack" $ do
    sh "echo 'auto shoot'"


run nemesis

attack                            : Hunter attack macro
auto-attack                       : Auto attack
mark                              : Hunter's mark
pet-attack                        : Pet attack

run nemesis attack

casting hunter's mark
pet attack
auto shoot
attack macro done!


Suppose you have the following tasks

nemesis = do

  namespace "eat" $ do

    task "bread: salad" $ putStrLn "eating bread"
    task "salad: /drink/coke" $ putStrLn "nice salad"

  namespace "drink" $ do

    task "coke" $ putStrLn "drinking coke"


nemesis bread =>
.nemesis: bread does not exist!

nemesis eat/bread =>
drinking coke
nice salad
eating bread

Advance usage


Use a separator below language extensions, e.g.

{-# LANGUAGE QuasiQuotes #-}

-- Nem

nemesis = do
  task "i" (sh "ghci -isrc src/System/Nemesis.hs")

currently the separator -- Nem is hard coded

Build it yourself

If you don't want nemesis to compile Nemesis through intermediate nemesis-tmp.hs file, rename your Nemesis to Nemesis.hs, then start with this template.

import System.Nemesis (run)
import System.Nemesis.DSL

nemesis = do
  task "i" (sh "ghci -isrc src/System/Nemesis.hs")
main = run nemesis

The logic is that whenever main is defined in Nemesis.hs, nemesis will act as ghc --make wrapper, so you can get nice error messages.

That's it!


OK, she's actually mnemosyne, a cool goddess none the less.