fix: dealing with docker vs non-docker

Author: samrose

.github/workflows/nix-build.yml

@@ -70,7 +70,6 @@ jobs:
           --extra-conf "trusted-public-keys = nix-postgres-artifacts:dGZlQOvKcNEjvT7QEAJbcV6b6uk7VF/hWMjhYleiaLI=% cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
           . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
           cp ./docker/nix/build_nix.sh ./build_nix.sh
-          sed -i '' 's/cd workspace//g' ./build_nix.sh
           sed -i '' '1s|^#!/bin/env bash|#!/usr/bin/env bash|' ./build_nix.sh
           chmod +x ./build_nix.sh
           ./build_nix.sh

docker/nix/build_nix.sh

@@ -2,7 +2,9 @@
 set -eou pipefail
 
 nix --version
-cd /workspace
+if [ -d "/workspace" ]; then
+    cd /workspace
+fi
 nix build .#psql_15/bin -o psql_15
 nix flake check -L 
 nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key ./psql_15