Many packages have some kind of flag indicating whether or not to build with systemd support. Most of these default to `stdenv.isLinux`, but systemd does not build on (and is marked `broken` for) `isStatic`. Only a few packages have the needed `&& !isStatic` in the default value for their parameter. This commit moves the logic for the default value of these flags into `systemd.meta.{platforms,badPlatforms}` and evaluates those conditions using `lib.meta.availableOn`. This provides three benefits: 1. The default values are set correctly (i.e. including `&& isStatic`) 2. The default values are set consistently 3. The way is paved for any future non-Linux systemd platforms (FreeBSD is reported to have experimental systemd support)
96 lines
3.7 KiB
Nix
96 lines
3.7 KiB
Nix
{ lib, stdenv, fetchurl, pkg-config, python3, bluez
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, tcl, acl, kmod, coreutils, shadow, util-linux, udev
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, alsaSupport ? stdenv.isLinux, alsa-lib
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, systemdSupport ? lib.meta.availableOn stdenv.hostPlatform systemd, systemd
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}:
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stdenv.mkDerivation rec {
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pname = "brltty";
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version = "6.3";
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src = fetchurl {
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url = "https://brltty.app/archive/${pname}-${version}.tar.gz";
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sha256 = "14psxwlvgyi2fj1zh8rfykyjcjaya8xa7yg574bxd8y8n49n8hvb";
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};
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nativeBuildInputs = [ pkg-config python3.pkgs.cython tcl ];
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buildInputs = [ bluez ]
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++ lib.optional alsaSupport alsa-lib
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++ lib.optional systemdSupport systemd;
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meta = {
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description = "Access software for a blind person using a braille display";
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longDescription = ''
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BRLTTY is a background process (daemon) which provides access to the Linux/Unix
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console (when in text mode) for a blind person using a refreshable braille display.
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It drives the braille display, and provides complete screen review functionality.
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Some speech capability has also been incorporated.
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'';
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homepage = "https://brltty.app";
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license = lib.licenses.gpl2Plus;
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maintainers = [ lib.maintainers.bramd ];
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platforms = lib.platforms.all;
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};
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makeFlags = [
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"PYTHON_PREFIX=$(out)"
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"SYSTEMD_UNITS_DIRECTORY=$(out)/lib/systemd/system"
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"SYSTEMD_USERS_DIRECTORY=$(out)/lib/sysusers.d"
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"SYSTEMD_FILES_DIRECTORY=$(out)/lib/tmpfiles.d"
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"UDEV_LIBRARY_DIRECTORY=$(out)/lib/udev"
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"UDEV_RULES_TYPE=all"
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"POLKIT_POLICY_DIR=$(out)/share/polkit-1/actions"
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"POLKIT_RULE_DIR=$(out)/share/polkit-1/rules.d"
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];
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configureFlags = [
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"--with-writable-directory=/run/brltty"
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"--with-updatable-directory=/var/lib/brltty"
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"--with-api-socket-path=/var/lib/BrlAPI"
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];
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installFlags = [ "install-systemd" "install-udev" "install-polkit" ];
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preConfigure = ''
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substituteInPlace configure --replace /sbin/ldconfig ldconfig
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# Some script needs a working tclsh shebang
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patchShebangs .
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# Skip impure operations
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substituteInPlace Programs/Makefile.in \
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--replace install-writable-directory "" \
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--replace install-apisoc-directory "" \
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--replace install-api-key ""
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'';
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postInstall = ''
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# Rewrite absolute paths
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substituteInPlace $out/bin/brltty-mkuser \
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--replace '/sbin/nologin' '${shadow}/bin/nologin'
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(
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cd $out/lib
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substituteInPlace systemd/system/brltty@.service \
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--replace '/usr/lib' "$out/lib" \
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--replace '/sbin/modprobe' '${kmod}/bin/modprobe'
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# Ensure the systemd-wrapper script uses the correct path to the brltty binary
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sed "/^Environment=\"BRLTTY_EXECUTABLE_ARGUMENTS.*/a Environment=\"BRLTTY_EXECUTABLE_PATH=$out/bin/brltty\"" -i systemd/system/brltty@.service
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substituteInPlace systemd/system/brltty-device@.service \
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--replace '/usr/bin/true' '${coreutils}/bin/true'
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substituteInPlace udev/rules.d/90-brltty-uinput.rules \
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--replace '/usr/bin/setfacl' '${acl}/bin/setfacl'
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substituteInPlace tmpfiles.d/brltty.conf \
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--replace "$out/etc" '/etc'
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# Remove unused commands from udev rules
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sed '/initctl/d' -i udev/rules.d/90-brltty-device.rules
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# Remove pulse-access group from systemd unit and sysusers
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substituteInPlace systemd/system/brltty@.service \
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--replace 'SupplementaryGroups=pulse-access' '# SupplementaryGroups=pulse-access'
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substituteInPlace sysusers.d/brltty.conf \
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--replace 'm brltty pulse-access' '# m brltty pulse-access'
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)
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substituteInPlace $out/libexec/brltty/systemd-wrapper \
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--replace 'logger' "${util-linux}/bin/logger" \
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--replace 'udevadm' "${udev}/bin/udevadm"
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'';
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}
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