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nixpkgs/pkgs/tools/misc/brltty/default.nix
Bram 13375265e4
brltty: fix systemd-wrapper script
- Use absolute paths to logger and udev.
- Pass the absolute path to the brltty binary to the wrapper.
- Include generic USB devices in udev rules.
- Remove pulse-access group from systemd unit and sysusers.
2021-04-11 10:35:16 +02:00

96 lines
3.6 KiB
Nix

{ lib, stdenv, fetchurl, pkg-config, python3, bluez
, tcl, acl, kmod, coreutils, shadow, util-linux, udev
, alsaSupport ? stdenv.isLinux, alsaLib
, systemdSupport ? stdenv.isLinux, systemd
}:
stdenv.mkDerivation rec {
pname = "brltty";
version = "6.3";
src = fetchurl {
url = "https://brltty.app/archive/${pname}-${version}.tar.gz";
sha256 = "14psxwlvgyi2fj1zh8rfykyjcjaya8xa7yg574bxd8y8n49n8hvb";
};
nativeBuildInputs = [ pkg-config python3.pkgs.cython tcl ];
buildInputs = [ bluez ]
++ lib.optional alsaSupport alsaLib
++ lib.optional systemdSupport systemd;
meta = {
description = "Access software for a blind person using a braille display";
longDescription = ''
BRLTTY is a background process (daemon) which provides access to the Linux/Unix
console (when in text mode) for a blind person using a refreshable braille display.
It drives the braille display, and provides complete screen review functionality.
Some speech capability has also been incorporated.
'';
homepage = "https://brltty.app";
license = lib.licenses.gpl2Plus;
maintainers = [ lib.maintainers.bramd ];
platforms = lib.platforms.all;
};
makeFlags = [
"PYTHON_PREFIX=$(out)"
"SYSTEMD_UNITS_DIRECTORY=$(out)/lib/systemd/system"
"SYSTEMD_USERS_DIRECTORY=$(out)/lib/sysusers.d"
"SYSTEMD_FILES_DIRECTORY=$(out)/lib/tmpfiles.d"
"UDEV_LIBRARY_DIRECTORY=$(out)/lib/udev"
"UDEV_RULES_TYPE=all"
"POLKIT_POLICY_DIR=$(out)/share/polkit-1/actions"
"POLKIT_RULE_DIR=$(out)/share/polkit-1/rules.d"
];
configureFlags = [
"--with-writable-directory=/run/brltty"
"--with-updatable-directory=/var/lib/brltty"
"--with-api-socket-path=/var/lib/BrlAPI"
];
installFlags = [ "install-systemd" "install-udev" "install-polkit" ];
preConfigure = ''
substituteInPlace configure --replace /sbin/ldconfig ldconfig
# Some script needs a working tclsh shebang
patchShebangs .
# Skip impure operations
substituteInPlace Programs/Makefile.in \
--replace install-writable-directory "" \
--replace install-apisoc-directory "" \
--replace install-api-key ""
'';
postInstall = ''
# Rewrite absolute paths
substituteInPlace $out/bin/brltty-mkuser \
--replace '/sbin/nologin' '${shadow}/bin/nologin'
(
cd $out/lib
substituteInPlace systemd/system/brltty@.service \
--replace '/usr/lib' "$out/lib" \
--replace '/sbin/modprobe' '${kmod}/bin/modprobe'
# Ensure the systemd-wrapper script uses the correct path to the brltty binary
sed "/^Environment=\"BRLTTY_EXECUTABLE_ARGUMENTS.*/a Environment=\"BRLTTY_EXECUTABLE_PATH=$out/bin/brltty\"" -i systemd/system/brltty@.service
substituteInPlace systemd/system/brltty-device@.service \
--replace '/usr/bin/true' '${coreutils}/bin/true'
substituteInPlace udev/rules.d/90-brltty-uinput.rules \
--replace '/usr/bin/setfacl' '${acl}/bin/setfacl'
substituteInPlace tmpfiles.d/brltty.conf \
--replace "$out/etc" '/etc'
# Remove unused commands from udev rules
sed '/initctl/d' -i udev/rules.d/90-brltty-device.rules
# Remove pulse-access group from systemd unit and sysusers
substituteInPlace systemd/system/brltty@.service \
--replace 'SupplementaryGroups=pulse-access' '# SupplementaryGroups=pulse-access'
substituteInPlace sysusers.d/brltty.conf \
--replace 'm brltty pulse-access' '# m brltty pulse-access'
)
substituteInPlace $out/libexec/brltty/systemd-wrapper \
--replace 'logger' "${util-linux}/bin/logger" \
--replace 'udevadm' "${udev}/bin/udevadm"
'';
}