From 086bfa55b40dfdaeb3c0381d876d50081b37c9a3 Mon Sep 17 00:00:00 2001
From: Yvan Sraka <yvan@sraka.xyz>
Date: Mon, 13 May 2024 14:47:07 +0200
Subject: [PATCH] Fix `[: -v: unary operator expected` (#158)

* Fix `[: -v: unary operator expected`

```
/nix/store/1zcy75q3dr61bka5h4r8rf3kv8k18kw3-ghc96-iog-env.sh: line 1944: [: -v: unary operator expected
```
e.g. seen on https://github.com/IntersectMBO/cardano-node/actions/runs/8977554294/job/24656515205?pr=5817, in the Build all step.

* Update quirks.nix
---
 quirks.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/quirks.nix b/quirks.nix
index 5c407aa..fb34a1f 100644
--- a/quirks.nix
+++ b/quirks.nix
@@ -26,12 +26,12 @@
     else
         PREFIX="Hint:"
     fi
-    if [ "$GITHUB_ACTIONS" = "true" ] || [ -v CODESPACE_TOKEN ]; then
+    if [ "$GITHUB_ACTIONS" = "true" ] || [ "$'' + ''{CODESPACE_TOKEN+x}" = "x" ]; then
         echo "$PREFIX to reproduce this environment locally, use either:" \
              "\`nix develop github:input-output-hk/devx#${flavor}\`, or" \
              "\`docker run -it -v \$(pwd):/workspaces ghcr.io/input-output-hk/devx-devcontainer:x86_64-linux.${flavor}\`"
     fi
-    if [ -v CODESPACE_TOKEN ]; then
+    if [ "$'' + ''{CODESPACE_TOKEN+x}" = "x" ]; then
         echo "Quirks:"
         echo -e "\tThe Haskell VSCode extension might ask you \"How do you want the extension to manage/discover HLS and the relevant toolchain?\""
         echo -e "\tChoose \"Manually via PATH\", not \"Automatically via GHCup\""