don't insist $USER needs to be set

Author: domenkozar

install-nix.sh

@@ -20,7 +20,7 @@ add_config() {
 # Set jobs to number of cores
 add_config "max-jobs = auto"
 # Allow binary caches for user
-add_config "trusted-users = root $USER"
+add_config "trusted-users = root ${USER:-}"
 # Add github access token
 if [[ $INPUT_GITHUB_ACCESS_TOKEN != "" ]]; then
   add_config "access-tokens" "github.com=$INPUT_GITHUB_ACCESS_TOKEN"
@@ -86,7 +86,6 @@ fi
 
 # Set paths
 echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
-echo "/nix/var/nix/profiles/per-user/$USER/profile/bin" >> "$GITHUB_PATH"
 # new path for nix 2.14
 echo "$HOME/.nix-profile/bin" >> "$GITHUB_PATH"