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{ lib, stdenv, fetchurl, readline, bison }:
stdenv.mkDerivation rec {
pname = "es";
version = "0.9.2";
src = fetchurl {
url = "https://github.com/wryun/es-shell/releases/download/v${version}/es-${version}.tar.gz";
sha256 = "sha256-ySZIK0IITpA+uHHuHrDO/Ana5vGt64QI3Z6TMDXE9d0=";
};
# The distribution tarball does not have a single top-level directory.
preUnpack = ''
mkdir $name
cd $name
sourceRoot=.
'';
strictDeps = true;
nativeBuildInputs = [ bison ];
buildInputs = [ readline ];
configureFlags = [ "--with-readline" ];
meta = with lib; {
description = "Extensible shell with higher order functions";
mainProgram = "es";
longDescription =
''
Es is an extensible shell. The language was derived
from the Plan 9 shell, rc, and was influenced by
functional programming languages, such as Scheme,
and the Tcl embeddable programming language.
'';
homepage = "http://wryun.github.io/es-shell/";
license = licenses.publicDomain;
maintainers = with maintainers; [ sjmackenzie ttuegel ];
platforms = platforms.all;
};
passthru = {
shellPath = "/bin/es";
};
}
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