nixpkgs/pkgs/development/tools/misc/help2man/default.nix
2021-01-23 20:30:03 +07:00

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{ lib, stdenv, fetchurl, perlPackages, gettext }:
# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
stdenv.mkDerivation rec {
name = "help2man-1.47.16";
src = fetchurl {
url = "mirror://gnu/help2man/${name}.tar.xz";
sha256 = "1x586h7wvripcay35kdh2kvydx84y8yy93ffjah2rqw6bc65iy1y";
};
nativeBuildInputs = [ gettext perlPackages.LocaleGettext ];
buildInputs = [ perlPackages.perl perlPackages.LocaleGettext ];
doCheck = false; # target `check' is missing
patches = if stdenv.hostPlatform.isCygwin then [ ./1.40.4-cygwin-nls.patch ] else null;
# We don't use makeWrapper here because it uses substitutions our
# bootstrap shell can't handle.
postInstall = ''
mv $out/bin/help2man $out/bin/.help2man-wrapped
cat > $out/bin/help2man <<EOF
#! $SHELL -e
export PERL5LIB=\''${PERL5LIB:+:}${perlPackages.LocaleGettext}/${perlPackages.perl.libPrefix}
${lib.optionalString stdenv.hostPlatform.isCygwin
''export PATH=\''${PATH:+:}${gettext}/bin''}
exec -a \$0 $out/bin/.help2man-wrapped "\$@"
EOF
chmod +x $out/bin/help2man
'';
meta = with lib; {
description = "Generate man pages from `--help' output";
longDescription =
'' help2man produces simple manual pages from the --help and
--version output of other commands.
'';
homepage = "https://www.gnu.org/software/help2man/";
license = licenses.gpl3Plus;
platforms = platforms.all;
maintainers = with maintainers; [ pSub ];
};
}