nemesis: a task management tool for Haskell

This is a package candidate release! Here you can preview how this package release will appear once published to the main package index (which can be accomplished via the 'maintain' link below). Please note that once a package has been published to the main package index it cannot be undone! Please consult the package uploading documentation for more information.


Organize common shell tasks into a meaningful tree like structure with dependency tracking

[Skip to ReadMe]


Versions2009.6.12, 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, 2018.1.27
Dependenciesbase (>4 && <=6), containers, directory, dlist, Glob (>=0.9), lens, mtl, process, time [details]
AuthorJinjing Wang
MaintainerJinjing Wang <>
Home page
Source repositoryhead: git clone
UploadedSat Jan 27 11:41:21 UTC 2018 by JinjingWang




Maintainers' corner

For package maintainers and hackage trustees

Readme for nemesis-2018.1.27

[back to package description]

Nemesis: a task management tool for Haskell


import System.Nemesis

main = run $ 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


Create a file named Nemesis

import System.Nemesis
import System.Nemesis.Utils ((-))
import Prelude hiding ((-))

main = run - do

  -- desc is optional, it gives some description to the task
  -- task syntax: task "keyword: space seperated dependencies" io-action
  desc "Hunter attack macro"
  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'"


runghc Nemesis

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

runghc Nemesis attack

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


Create namespaces for tasks with the keyword namespace

import System.Nemesis
import System.Nemesis.Utils ((-))
import Prelude hiding ((-))

main = run - do

  namespace "eat" - do

    task "bread: salad" - putStrLn "eating bread"
    task "salad: /drink/coke" - putStrLn "eating salad"

  namespace "drink" - do

    task "coke" - putStrLn "drinking coke"

Namespaces are referenced as path components.

runghc Nemesis bread

Nemesis: bread does not exist!

runghc Nemesis eat/bread

drinking coke
eating salad
eating bread