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nixpkgs/pkgs/tools/misc/txt2man/default.nix

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Nix

{ lib, stdenv, fetchFromGitHub, coreutils, gawk }:
stdenv.mkDerivation rec {
pname = "txt2man";
version = "1.7.1";
src = fetchFromGitHub {
owner = "mvertes";
repo = "txt2man";
rev = "${pname}-${version}";
hash = "sha256-Aqi5PNNaaM/tr9A/7vKeafYKYIs/kHbwHzE7+R/9r9s=";
};
makeFlags = [
"prefix=${placeholder "out"}"
];
postPatch = ''
for f in bookman src2man txt2man; do
substituteInPlace $f \
--replace "gawk" "${gawk}/bin/gawk" \
--replace "(date" "(${coreutils}/bin/date" \
--replace "=cat" "=${coreutils}/bin/cat" \
--replace "cat <<" "${coreutils}/bin/cat <<" \
--replace "expand" "${coreutils}/bin/expand" \
--replace "(uname" "(${coreutils}/bin/uname"
done
'';
doCheck = true;
checkPhase = ''
# gawk and coreutils are part of stdenv but will not
# necessarily be in PATH at runtime.
sh -c 'unset PATH; printf hello | ./txt2man'
'';
meta = with lib; {
description = "Convert flat ASCII text to man page format";
homepage = "http://mvertes.free.fr/";
license = licenses.gpl2;
platforms = platforms.unix;
maintainers = with maintainers; [ bjornfor ];
};
}