core/pkgs/by-name/db/dbus/make-dbus-conf.nix

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{
runCommand,
writeText,
libxslt,
dbus,
findXMLCatalogs,
serviceDirectories ? [ ],
suidHelper ? "/var/setuid-wrappers/dbus-daemon-launch-helper",
apparmor ? "disabled", # one of enabled, disabled, required
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}:
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/*
DBus has two configuration parsers -- normal and "trivial", which is used
for suid helper. Unfortunately the latter doesn't support <include>
directive. That means that we can't just place our configuration to
*-local.conf -- it needs to be in the main configuration file.
*/
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runCommand "dbus-1"
{
inherit serviceDirectories suidHelper apparmor;
preferLocalBuild = true;
allowSubstitutes = false;
nativeBuildInputs = [
libxslt.bin
findXMLCatalogs
];
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buildInputs = [ dbus.out ];
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}
''
mkdir -p $out
xsltproc --nonet \
--stringparam serviceDirectories "$serviceDirectories" \
--stringparam suidHelper "$suidHelper" \
--stringparam apparmor "$apparmor" \
${./make-system-conf.xsl} ${dbus}/share/dbus-1/system.conf \
> $out/system.conf
xsltproc --nonet \
--stringparam serviceDirectories "$serviceDirectories" \
--stringparam apparmor "$apparmor" \
${./make-session-conf.xsl} ${dbus}/share/dbus-1/session.conf \
> $out/session.conf
# check if files are empty or only contain space characters
grep -q '[^[:space:]]' "$out/system.conf" || (echo "\"$out/system.conf\" was generated incorrectly and is empty, try building again." && exit 1)
grep -q '[^[:space:]]' "$out/session.conf" || (echo "\"$out/session.conf\" was generated incorrectly and is empty, try building again." && exit 1)
''