Fix infinite loop that happens when using direnv

[wkordalski]

Do you know about https://direnv.net/?

It is a nice tool that activates nix flake dev shell when entering project directory and at the same time preserving current shell (instead of executing bash subshell).

Unfortunately it enters infinite loop when shellHook executes inner zsh subshell.
(Direnv activates the development shell, which calls shell hook and creates subshell, in which direnv activates the development shell, which calls shell hook and creates subshell, and so on... )

I think that running zsh in a shell hook is a wrong direction. Most probably direnv is the right solution to your problem.

In short about direnv:

• set proper NixOS options (or see installation instructions for other OSes)

  programs.direnv = {
    enable = true;
    enableZshIntegration = true;
    enableBashIntegration = true;
    nix-direnv.enable = true;
  };
  

• create .envrc file with content use flake in the project root directory

• "allow" direnv to run project's .envrc automatically by executing direnv allow in the project root directory

• now when entering project directory the "dev shell mode" will be activated (but without running subshell, and thus preserving current shell)

---

Important

Removes shellHook in flake.nix to fix infinite loop with direnv by preventing zsh subshell execution.

• Behavior:
  • Removes shellHook in flake.nix that executed zsh, which caused an infinite loop with direnv.
• Compatibility:
  • Ensures compatibility with direnv by preventing subshell execution.

^{This description was created by for a532069. It will automatically update as commits are pushed.}

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