try fix nix pre-installed path variable

Signed-off-by: Thing-han, Lim <[email protected]>

.github/actions/setup-nix/action.yml

@@ -21,15 +21,15 @@ runs:
       id: pre-check-nix
       continue-on-error: true
       if: ${{ inputs.nix-pre-installed == 'true' }}
-      shell: bash
+      shell: bash -e -o pipefail {0}
       run: |
         nix --version
         nix config show | grep -E "^trusted-users = .*$USER"
         nix config show | grep -E "^experimental-features = .*flakes"
         nix config show | grep -E "^experimental-features = .*nix-command"
 
     - name: Install nix
-      if: steps.pre-check-nix.outcome != 'success' && ${{ inputs.nix-pre-installed == 'true' }}
+      if: needs.pre-check-nix.result != 'success' && ${{ inputs.nix-pre-installed == 'true' }}
 
       shell: bash
       run: |
@@ -38,7 +38,7 @@ runs:
         --extra-conf "experimental-features = nix-command flakes" \
     - name: Post-check nix
       if: ${{ inputs.nix-pre-installed == 'true' }}
-      shell: bash
+      shell: bash -e -o pipefail {0}
       run: |
         nix config check
     - uses: DeterminateSystems/magic-nix-cache-action@v8