e11sync-static: fix caching

pkgs/e11sync-caddyfile.nix

@@ -6,7 +6,7 @@
 writeTextFile {
   name = "e11sync-caddyfile";
   text = ''
-    header /static/CACHE/* Cache-Control "public, max-age=31536000, immutable"
+    header /static/* Cache-Control "public, max-age=31536000, immutable"
 
     route /static/* {
       uri strip_prefix /static

pkgs/e11sync-static.nix

@@ -6,6 +6,7 @@
   brotli,
   findutils,
   dart-sass,
+  jq,
 }: let
   self = stdenv.mkDerivation {
     name = "e11sync-static";
@@ -18,14 +19,20 @@
     ];
     patchPhase = ''patchShebangs --build app/manage.py'';
     buildPhase = ''
-      export E11SYNC_DEBUG=
       make -C static style.css
       app/manage.py collectstatic
 
+      # remove unversioned files
+      (cd app/_static;
+        ${jq}/bin/jq -r '.paths | keys[]' staticfiles.json | \
+        xargs rm
+      )
+
       find app/_static \
           -name '*.css' -or \
           -name '*.js' -or \
-          -name '*.svg' | \
+          -name '*.svg' -or \
+          -name '*.txt' | \
           tee >(xargs -n1 -P''$(nproc) ${zopfli}/bin/zopfli) | \
           xargs -n1 -P''$(nproc) ${brotli}/bin/brotli
     '';