1 files changed, 15 insertions, 1 deletions
diff --git a/modules/ejabberd/default.nix b/modules/ejabberd/default.nix
index 02c060d..9607741 100644
--- a/modules/ejabberd/default.nix
+++ b/modules/ejabberd/default.nix
@@ -131,6 +131,9 @@ in {
     systemd.services.ejabberd = {
       wantedBy = [ "multi-user.target" ];
       after = [ "network.target" ];
+      environment = {
+        HOME = cfg.stateDir;
+      };
       reloadTriggers = [
         config.environment.etc."ejabberd/ejabberd.yaml".source
         config.environment.etc."ejabberd/ejabberdctl.cfg".source
@@ -139,6 +142,17 @@ in {
         ExecStartPre = [
           "${pkgs.coreutils}/bin/ln -s \${CREDENTIALS_DIRECTORY} /tmp/credentials"
           "${gen-dhparam} ${cfg.stateDir}/dhfile"
+          (pkgs.writeDash "ejabberd-ensure-PREVIOUS.LOG" ''
+            set -efu
+            cd ${cfg.stateDir}
+            if ! test -e PREVIOUS.LOG; then
+              if test -f LATEST.LOG; then
+                ${pkgs.coreutils}/bin/ln LATEST.LOG PREVIOUS.LOG
+              else
+                ${pkgs.coreutils}/bin/touch PREVIOUS.LOG
+              fi
+            fi
+          '')
         ];
         ExecStart = "${cfg.pkgs.ejabberd}/bin/ejabberdctl foreground";
         ExecStop = [
@@ -155,7 +169,7 @@ in {
         PrivateDevices = true;
         PrivateTmp = true;
         SyslogIdentifier = "ejabberd";
-        StateDirectory = "ejabberd";
+        StateDirectory = lib.removePrefix "/var/lib/" cfg.stateDir;
         User = "ejabberd";
         DynamicUser = true;
         TimeoutSec = 60;