nixpkgs/pkgs/development/tools/build-managers/cask/default.nix

{ emacsPackagesNg, writeScriptBin }:
let

  emacs = emacsPackagesNg.emacsWithPackages (epkgs: [ epkgs.cask-package-toolset ]);
  cpt = emacsPackagesNg.cask-package-toolset;

in writeScriptBin "cask" ''
#!/bin/sh

exec ${emacs}/bin/emacs --script ${cpt}/share/emacs/site-lisp/elpa/cask-package-toolset-${cpt.version}/cask-package-toolset.el -- "$@"
''
cask: fix evaluation error this was due to an override `emacsPackages = emacsPackagesNg` on my system. https://github.com/NixOS/nixpkgs/commit/5bede1a25280d3ce57d9140babdd2ecac6c1333a 2018-02-16 00:15:37 +00:00			`{ emacsPackagesNg, writeScriptBin }:`
cask: init cask is a build tool for emacs packages cc @ttuegel @mdorman 2016-11-25 03:53:49 +00:00			`let`

cask: fix evaluation error this was due to an override `emacsPackages = emacsPackagesNg` on my system. https://github.com/NixOS/nixpkgs/commit/5bede1a25280d3ce57d9140babdd2ecac6c1333a 2018-02-16 00:15:37 +00:00			`emacs = emacsPackagesNg.emacsWithPackages (epkgs: [ epkgs.cask-package-toolset ]);`
			`cpt = emacsPackagesNg.cask-package-toolset;`
cask: init cask is a build tool for emacs packages cc @ttuegel @mdorman 2016-11-25 03:53:49 +00:00
			`in writeScriptBin "cask" ''`
			`#!/bin/sh`

			`exec ${emacs}/bin/emacs --script ${cpt}/share/emacs/site-lisp/elpa/cask-package-toolset-${cpt.version}/cask-package-toolset.el -- "$@"`
			`''`