fix(packages): move to overlays

packages/scripts/dirmir.nix

@@ -0,0 +1,27 @@
+{ writers, coreutils, findutils }:
+let name = "dirmir";
+in writers.writeDashBin name ''
+  export PATH=$PATH:${coreutils}/bin:${findutils}/bin
+
+  SOURCE="$1"
+  TARGET="$2"
+
+  if [ ! -d "$SOURCE" ] || [ $# -ne 2 ]; then
+    echo >/dev/stderr "Usage: ${name} SOURCE TARGET"
+    exit 1
+  fi
+
+  if [ -e "$TARGET" ]; then
+    echo >/dev/stderr "$TARGET" already exists. Please use a different name.
+    exit 1
+  fi
+
+  for entry in $(find "$SOURCE"); do
+    if [ -d "$entry" ]; then
+      mkdir -p "$TARGET/$entry"
+    else
+      # create a file with the same permissions as $entry
+      install -m "$(stat -c %a "$entry")" /dev/null "$TARGET/$entry"
+    fi
+  done
+''