stockholm/krebs/5pkgs/simple/eximlog.nix
2021-10-12 20:53:45 +02:00

29 lines
610 B
Nix

{ jq, stockholm, systemd, writeDashBin }:
let
lib = stockholm.lib;
user = "exim"; # TODO make this configurable
in
# TODO execute eximlog only if journalctl doesn't fail
# bash's set -o pipefail isn't enough
writeDashBin "eximlog" ''
${systemd}/bin/journalctl \
-u ${lib.shell.escape user} \
-o short-unix \
"$@" \
|
${jq}/bin/jq -Rr '
# Only select lines that start with a timestamp
select(test("^[0-9]")) |
split(" ") |
(.[0] | tonumber) as $time |
(.[3:] | join(" ")) as $message |
"\($time | strftime("%Y-%m-%d %H:%M:%S %z")) \($message)"
'
''