nixpkgs/pkgs/development/libraries/dbus/make-dbus-conf.nix

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{ runCommand, writeText, libxslt, dbus
, serviceDirectories ? []
, suidHelper ? "/var/setuid-wrappers/dbus-daemon-launch-helper"
}:
/* 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.
*/
runCommand "dbus-1"
{
inherit serviceDirectories suidHelper;
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preferLocalBuild = true;
allowSubstitutes = false;
XML_CATALOG_FILES = writeText "dbus-catalog.xml" ''
<?xml version="1.0"?>
<!DOCTYPE catalog PUBLIC
"-//OASIS//DTD Entity Resolution XML Catalog V1.0//EN"
"http://www.oasis-open.org/committees/entity/release/1.0/catalog.dtd">
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
<rewriteSystem
systemIdStartString="http://www.freedesktop.org/standards/dbus/1.0/"
rewritePrefix="file://${dbus}/share/xml/dbus/"/>
</catalog>
'';
nativeBuildInputs = [ libxslt.bin ];
}
''
mkdir -p $out
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xsltproc --nonet \
--stringparam serviceDirectories "$serviceDirectories" \
--stringparam suidHelper "$suidHelper" \
${./make-system-conf.xsl} ${dbus}/share/dbus-1/system.conf \
> $out/system.conf
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xsltproc --nonet \
--stringparam serviceDirectories "$serviceDirectories" \
${./make-session-conf.xsl} ${dbus}/share/dbus-1/session.conf \
> $out/session.conf
''