add detach command

common/users/homeModules/scripts/default.nix

@@ -19,6 +19,7 @@ let
       executable = true;
       destination = "/bin/${name}";
       text = ''
+        export PATH=""
         for i in ${lib.concatStringsSep " " env}; do
           export PATH="$i/bin:$PATH"
         done
@@ -78,6 +79,13 @@ in
           direnv
         ];
       })
+      (mkScript {
+        name = "detach";
+        file = ./detach.sh;
+        env = with pkgs; [
+          coreutils
+        ];
+      })
       # impl for the cloneRepo command
     ];
     file = {

common/users/homeModules/scripts/detach.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+function echoe() {
+    echo $@ 1>&2
+}
+
+function printUsage() {
+    echoe "Usage: ${0} FILE"
+    echoe "Unlink a file by copying the original file to the link path"
+    echoe "Shorthand for cp -P \$(readlink \$FILE) $FILE"
+}
+
+if [[ -z $1 ]]; then
+    echoe "${0}: missing file"
+    printUsage
+    exit 1
+fi
+
+cp -P $(readlink $1) $1