nix-packages/packages/journalctl-last-invocation/package.nix

{ pkgs , stdenv } :

with pkgs ;
with stdenv ;

mkDerivation {
	pname = "journalctl-last-invocation" ;
	version = "2025-03-10" ;

	phases = [ "createSourcesPhase" "installPhase" ] ;

	createSourcesPhase = ''
		# Same directory structure that `unpackPhase` would use
		mkdir -p /build/source

		cat <<- EOF > /build/source/journalctl-last-invocation
			#!${bash}/bin/sh

			exec ${systemd}/bin/journalctl _SYSTEMD_INVOCATION_ID=\$( ${systemd}/bin/systemctl show --value --property=InvocationID \$1 )
		EOF
	'' ;

	installPhase = ''
		mkdir -p $out/bin

		cp /build/source/journalctl-last-invocation $out/bin/

		chmod +x $out/bin/journalctl-last-invocation
	'' ;
}