opentabletdriver.fetch-deps crashes

[gepbird]

Describe the bug

Running opentabletdriver.fetch-deps script crashes after #362278

Steps To Reproduce

Steps to reproduce the behavior:

1. checkout master (12e3af0)
2. $(nix-build -A opentabletdriver.fetch-deps)
3. observe error: /nix/store/vszbrq40jq530xf3022j9zwjanmpgc9d-wrap-gapps-hook/nix-support/setup-hook: line 31: !v: unbound variable

Expected behavior

No crash

Screenshots

Additional context

Bisected to c94c508. Most likely only a few packages are affected that are using wrapGAppsHook3, no issues with for example vrcadvert.fetch-deps or tone.fetch-deps.

Metadata

 - system: `"x86_64-linux"`
 - host os: `Linux 6.11.5-zen1, NixOS, 25.05 (Warbler), 25.05.20241213.3566ab7`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Lix, like Nix) 2.91.1
System type: x86_64-linux
Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux
Features: gc, signed-caches
System configuration file: /etc/nix/nix.conf
User configuration files: /home/gep/.config/nix/nix.conf:/etc/xdg/nix/nix.conf:/home/gep/.nix-profile/etc/xdg/nix/nix.conf:/nix/profile/etc/xdg/nix/nix.conf:/home/gep/.local/state/nix/profile/etc/xdg/nix/nix.conf:/etc/profiles/per-user/gep/etc/xdg/nix/nix.conf:/nix/var/nix/profiles/default/etc/xdg/nix/nix.conf:/run/current-system/sw/etc/xdg/nix/nix.conf
Store directory: /nix/store
State directory: /nix/var/nix
Data directory: /nix/store/smghprxmwyp707kqljlm4fsxm7h5wd72-lix-2.91.1/share`
 - nixpkgs: `/nix/store/22r7q7s9552gn1vpjigkbhfgcvhsrz68-source`

Notify maintainers

@GGG-KILLER

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[gepbird]

Applying the following on master "fixes" this issue:

diff --git a/pkgs/build-support/dotnet/add-nuget-deps/fetch-deps.sh b/pkgs/build-support/dotnet/add-nuget-deps/fetch-deps.sh
index 809f5c4b26d8..c65b666d9d9f 100644
--- a/pkgs/build-support/dotnet/add-nuget-deps/fetch-deps.sh
+++ b/pkgs/build-support/dotnet/add-nuget-deps/fetch-deps.sh
@@ -1,5 +1,5 @@
 # shellcheck shell=bash
-set -euo pipefail
+set -eo pipefail
 
 export PATH="@binPath@:$PATH"

I guess wrapGAppsHook3 script needs to handle undefined variables in a better way.

[GGG-KILLER]

Oh, my bad, I thought that was something that was already happening on master.
Didn't notice that my changes caused it, I'll get a PR up ASAP.

Thanks for finding the solution, I'll put the commit up with you as the author to give you full credit for the solution.

[gepbird]

Fixed by #366556