nixos/modules/services/mail/dovecot.nix: nixpkgs-fmt

nixos/modules/services/mail/dovecot.nix

@@ -18,13 +18,20 @@ let
       mail_plugins = $mail_plugins ${concatStringsSep " " cfg.mailPlugins.globally.enable}
     ''
 
-    (concatStringsSep "\n" (mapAttrsToList (protocol: plugins: ''
+    (
+      concatStringsSep "\n" (
+        mapAttrsToList (
+          protocol: plugins: ''
             protocol ${protocol} {
               mail_plugins = $mail_plugins ${concatStringsSep " " plugins.enable}
             }
-    '') cfg.mailPlugins.perProtocol))
+          ''
+        ) cfg.mailPlugins.perProtocol
+      )
+    )
 
-    (if cfg.sslServerCert == null then ''
+    (
+      if cfg.sslServerCert == null then ''
         ssl = no
         disable_plaintext_auth = no
       '' else ''
@@ -33,7 +40,8 @@ let
         ${optionalString (cfg.sslCACert != null) ("ssl_ca = <" + cfg.sslCACert)}
         ssl_dh = <${config.security.dhparams.params.dovecot2.path}
         disable_plaintext_auth = yes
-    '')
+      ''
+    )
 
     ''
       default_internal_user = ${cfg.user}
@@ -53,7 +61,8 @@ let
       }
     ''
 
-    (optionalString cfg.enablePAM ''
+    (
+      optionalString cfg.enablePAM ''
         userdb {
           driver = passwd
         }
@@ -62,24 +71,30 @@ let
           driver = pam
           args = ${optionalString cfg.showPAMFailure "failure_show_msg=yes"} dovecot2
         }
-    '')
+      ''
+    )
 
-    (optionalString (cfg.sieveScripts != {}) ''
+    (
+      optionalString (cfg.sieveScripts != {}) ''
         plugin {
           ${concatStringsSep "\n" (mapAttrsToList (to: from: "sieve_${to} = ${stateDir}/sieve/${to}") cfg.sieveScripts)}
         }
-    '')
+      ''
+    )
 
-    (optionalString (cfg.mailboxes != []) ''
+    (
+      optionalString (cfg.mailboxes != []) ''
         protocol imap {
           namespace inbox {
             inbox=yes
             ${concatStringsSep "\n" (map mailboxConfig cfg.mailboxes)}
           }
         }
-    '')
+      ''
+    )
 
-    (optionalString cfg.enableQuota ''
+    (
+      optionalString cfg.enableQuota ''
         service quota-status {
           executable = ${dovecotPkg}/libexec/dovecot/quota-status -p postfix
           inet_listener {
@@ -96,7 +111,8 @@ let
           quota_status_overquota = "552 5.2.2 Mailbox is full"
           quota_grace = 10%%
         }
-    '')
+      ''
+    )
 
     cfg.extraConfig
   ];
@@ -163,7 +179,7 @@ in
 
     protocols = mkOption {
       type = types.listOf types.str;
-      default = [ ];
+      default = [];
       description = "Additional listeners to start when Dovecot is enabled.";
     };
 
@@ -187,7 +203,8 @@ in
     };
 
     mailPlugins =
-    let plugins = hint: types.submodule {
+      let
+        plugins = hint: types.submodule {
           options = {
             enable = mkOption {
               type = types.listOf types.str;
@@ -217,7 +234,7 @@ in
             globally.enable = [ "acl" ];
             perProtocol.imap.enable = [ "imap_acl" ];
           };
-      default = { globally.enable = []; perProtocol = {};};
+          default = { globally.enable = []; perProtocol = {}; };
         };
 
     configFile = mkOption {
@@ -354,20 +371,21 @@ in
 
     users.users = {
       dovenull =
-        { uid = config.ids.uids.dovenull2;
+        {
+          uid = config.ids.uids.dovenull2;
           description = "Dovecot user for untrusted logins";
           group = "dovenull";
         };
     } // optionalAttrs (cfg.user == "dovecot2") {
       dovecot2 =
-         { uid = config.ids.uids.dovecot2;
+        {
+          uid = config.ids.uids.dovecot2;
           description = "Dovecot user";
           group = cfg.group;
         };
     } // optionalAttrs (cfg.createMailUser && cfg.mailUser != null) {
       ${cfg.mailUser} =
-        { description = "Virtual Mail User"; } //
+        { description = "Virtual Mail User"; } // optionalAttrs (cfg.mailGroup != null)
-        optionalAttrs (cfg.mailGroup != null)
           { group = cfg.mailGroup; };
     };
 
@@ -376,7 +394,7 @@ in
     } // optionalAttrs (cfg.group == "dovecot2") {
       dovecot2.gid = config.ids.gids.dovecot2;
     } // optionalAttrs (cfg.createMailUser && cfg.mailGroup != null) {
-      ${cfg.mailGroup} = { };
+      ${cfg.mailGroup} = {};
     };
 
     environment.etc."dovecot/modules".source = modulesDir;
@@ -405,7 +423,9 @@ in
         rm -rf ${stateDir}/sieve
       '' + optionalString (cfg.sieveScripts != {}) ''
         mkdir -p ${stateDir}/sieve
-        ${concatStringsSep "\n" (mapAttrsToList (to: from: ''
+        ${concatStringsSep "\n" (
+        mapAttrsToList (
+          to: from: ''
             if [ -d '${from}' ]; then
               mkdir '${stateDir}/sieve/${to}'
               cp -p "${from}/"*.sieve '${stateDir}/sieve/${to}'
@@ -413,7 +433,9 @@ in
               cp -p '${from}' '${stateDir}/sieve/${to}'
             fi
             ${pkgs.dovecot_pigeonhole}/bin/sievec '${stateDir}/sieve/${to}'
-        '') cfg.sieveScripts)}
+          ''
+        ) cfg.sieveScripts
+      )}
         chown -R '${cfg.mailUser}:${cfg.mailGroup}' '${stateDir}/sieve'
       '';
     };
@@ -421,17 +443,21 @@ in
     environment.systemPackages = [ dovecotPkg ];
 
     assertions = [
-      { assertion = intersectLists cfg.protocols [ "pop3" "imap" ] != [];
+      {
+        assertion = intersectLists cfg.protocols [ "pop3" "imap" ] != [];
         message = "dovecot needs at least one of the IMAP or POP3 listeners enabled";
       }
-      { assertion = (cfg.sslServerCert == null) == (cfg.sslServerKey == null)
+      {
+        assertion = (cfg.sslServerCert == null) == (cfg.sslServerKey == null)
         && (cfg.sslCACert != null -> !(cfg.sslServerCert == null || cfg.sslServerKey == null));
         message = "dovecot needs both sslServerCert and sslServerKey defined for working crypto";
       }
-      { assertion = cfg.showPAMFailure -> cfg.enablePAM;
+      {
+        assertion = cfg.showPAMFailure -> cfg.enablePAM;
         message = "dovecot is configured with showPAMFailure while enablePAM is disabled";
       }
-      { assertion = cfg.sieveScripts != {} -> (cfg.mailUser != null && cfg.mailGroup != null);
+      {
+        assertion = cfg.sieveScripts != {} -> (cfg.mailUser != null && cfg.mailGroup != null);
         message = "dovecot requires mailUser and mailGroup to be set when sieveScripts is set";
       }
     ];