nixpkgs/pkgs/development/libraries/dbus/make-dbus-conf.nix
Artturin a6138b750e makeDBusConf: fail if xsltproc generates empty files
A few people have reported empty files in /etc/dbus-1 which can cause obscure issues.
With this change, users can retry and get non-empty files.

can be tested with
`makeDBusConf { suidHelper = ""; serviceDirectories = []; }`

and adding

```
    rm $out/session.conf
    echo -n "" > $out/session.conf
    # or
    echo "" > $out/session.conf
```
2023-07-11 22:16:39 +03:00

49 lines
1.6 KiB
Nix

{ runCommand
, writeText
, libxslt
, dbus
, findXMLCatalogs
, serviceDirectories ? []
, suidHelper ? "/var/setuid-wrappers/dbus-daemon-launch-helper"
, apparmor ? "disabled" # one of enabled, disabled, required
}:
/* 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 apparmor;
preferLocalBuild = true;
allowSubstitutes = false;
nativeBuildInputs = [
libxslt.bin
findXMLCatalogs
];
buildInputs = [
dbus.out
];
}
''
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)
''