home/mail: fix sieve symlink fiasco

1 files changed, 23 insertions, 2 deletions

diff --git a/home/mail/default.nix b/home/mail/default.nix
index 38bc41e..a6fe8ff 100644
--- a/home/mail/default.nix
+++ b/home/mail/default.nix
@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 with lib; {
   config = mkIf (!config.home.isolation.active) {
     accounts.email = {
@@ -46,6 +46,27 @@ with lib; {
       };
     };
 
-    home.file.".dovecot.sieve".source = ./dovecot.sieve;
+    # .dovecot.sieve tiene que ser un symlink tal que el readlink -f de su
+    # dirname (no del symlink en sí) sea la misma cadena que el readlink -f
+    # de ~/sieve. Dovecot verifica eso y tira "Invalid/unknown path to
+    # storage" si este check frágil falla. Ni siquiera
+    # mkOutOfStoreSymlink funciona. Ver código fuente de Dovecot:
+    # pigeonhole/src/lib-sieve/storage/file/sieve-file-storage-active.c
+    home =
+      let
+        sieve = pkgs.runCommandNoCCLocal "sieve" { src = ./sieve; } ''
+          cp -r $src $out
+          chmod -R u+w $out
+          find $out -name '*.sieve' -exec ${pkgs.dovecot_pigeonhole}/bin/sievec -c /dev/null {} \;
+        '';
+      in
+      {
+        file."sieve".source = sieve;
+
+        activation.sieve = hm.dag.entryBetween [ "linkGeneration" ] [ "writeBoundary" ] ''
+          $DRY_RUN_CMD ln -Tsf ${sieve}/mail.sieve .dovecot.sieve
+          $DRY_RUN_CMD ln -Tsf ${sieve}/mail.svbin .dovecot.svbin
+        '';
+      };
   };
 }