fix bash script handling

modules/apps/kate/check-theme-name-free.sh

@@ -13,14 +13,13 @@ NORMAL=$(tput sgr0)
 # #
 # # https://www.baeldung.com/linux/bash-check-script-arguments
 
-if [[ "$#" -ne 2 ]]; then
+if [[ "$#" -ne 1 ]]; then
   # https://stackoverflow.com/questions/3005963/how-can-i-have-a-newline-in-a-string-in-sh/3182519#3182519
-  >&2 printf "${RED}${BOLD}Incorrect number of arguments.${NORMAL}${RED} Expected three:\n * Name of the theme that should not already be in use\n * the path to the jq executable"
+  >&2 printf "%sIncorrect number of arguments.%s Expected one: The name of the theme that should not already be in use" "${RED}${BOLD}" "${NORMAL}${RED}"
   exit 1
 fi
 
 THEMENAME=$1
-jqexec=$2
 
 
 # =====================================
@@ -30,17 +29,16 @@ jqexec=$2
 
 THEME_DIR="${XDG_DATA_HOME:-$HOME/.local/share}/org.kde.syntax-highlighting/themes/"
 
-ls "${THEME_DIR}" | while read -r themefile; do
-  FULL_PATH="${THEME_DIR}/${themefile}"
-  THIS_THEMENAME=$(${jqexec} -r .metadata.name "${FULL_PATH}")
-  # TODO skip if file is a symlink to /nix/store"
+# TODO and symlinks! (or: skip over dirs)
+find "${THEME_DIR}" \( -type f -o -type l \) | while read -r themefile; do
+  THIS_THEMENAME=$(jq -r .metadata.name "${themefile}")
 
-  if [[ "${THIS_THEMENAME}" == "${THEMENAME}" ]]; then
+  if [[ "${THIS_THEMENAME}" == "${themefile}" ]]; then
     # make sure to not look at symbolic links to the nix store
     # https://stackoverflow.com/questions/17918367/linux-shell-verify-whether-a-file-exists-and-is-a-soft-link/17918442#17918442
     # https://stackoverflow.com/questions/2172352/in-bash-how-can-i-check-if-a-string-begins-with-some-value/2172367#2172367
-    if [[ ! ( -L "${FULL_PATH}"  &&  $(readlink -f "${FULL_PATH}") == /nix/store/* ) ]]; then
-      >&2 printf "${RED}${BOLD}In ${THEME_DIR} there is already a theme with the name ${THEMENAME} (${themefile}).${NORMAL}${RED} You could rename the theme given in config.programs.kate.editor.theme.src by changing the value for metadta.name inside the theme."
+    if [[ ! ( -L "${themefile}"  &&  $(readlink -f "${themefile}") == /nix/store/* ) ]]; then
+      >&2 printf "%s In %s there is already a theme with the name %s (%s).%s You could rename the theme given in config.programs.kate.editor.theme.src by changing the value for metadata.name inside the theme." "${RED}${BOLD}" "${THEME_DIR}" "${THEMENAME}" "${themefile}" "${NORMAL}${RED}"
       exit 1 # even on dryrun
      fi
   fi

modules/apps/kate/default.nix

@@ -13,6 +13,19 @@ let
       if (indentSettings.undoByShiftTab && indentSettings.tabFromEverywhere) then 1 else
       2
     );
+
+    checkThemeNameScript = pkgs.writeShellApplication {
+      name = "checkThemeName";
+      runtimeInputs = with pkgs; [ jq ];
+      text = builtins.readFile ./check-theme-name-free.sh;
+    };
+
+    checkThemeName = name:
+    ''
+      ${checkThemeNameScript}/bin/checkThemeName ${name}
+    '';
+
+    script = pkgs.writeScript "kate-check" (checkThemeName cfg.editor.theme.name);
 in
 {
   options.programs.kate = {
@@ -167,9 +180,13 @@ in
     # In case of using a custom theme, check that there is no name collision
     home.activation.checkKateTheme = lib.mkIf (cfg.enable && cfg.editor.theme.src != null) (lib.hm.dag.entryBefore [ "writeBoundary" ]
     ''
-      ${./check-theme-name-free.sh} ${cfg.editor.theme.name} ${pkgs.jq}/bin/jq
+      $DRY_RUN_CMD ${script}
     '');
+#       ${./check-theme-name-free.sh} ${cfg.editor.theme.name} ${pkgs.jq}/bin/jq
 
     # In case of using a system theme, there should be a check that there exists such a theme
+    # but I could not figure out where to find them
+    # That's why there is no check for now
+    # See also [the original PR](https://github.com/pjones/plasma-manager/pull/95#issue-2206192839)
   };
 }