How to Install asdf with Nix Home-manager

install_asdf_with_nix.md

How to Install asdf with Nix Home-manager

1. First, add asdf to the Nix configuration with the package named asdf-vm. Add the following line to your configuration.nix file:

   environment.systemPackages = with pkgs; [
     asdf-vm
   ];

2. Next, add the following lines to your .bashrc file:

   . "$HOME/.nix-profile/share/asdf-vm/asdf.sh"
   . "$HOME/.nix-profile/share/bash-completion/completions/asdf.bash"

   These lines will load asdf into your shell.

3. Reload your .bashrc or open a new terminal to apply the changes.

4. Verify that asdf is properly installed by running the following command:

   asdf --version

   This should output the version number of asdf.

That's it! Now you can use asdf with Nix.

Thanks for this, It's really useful.

For anyone that's using fish, do this on step 2:

## Loads asdf definitions
source "$HOME/.nix-profile/share/asdf-vm/asdf.fish"

In my case, the installation did not create the paths inside ".nix-profile" like:

.nix-profile/share/asdf-vm/

So I put it in my .bashrc:

. "/run/current-system/sw/share/asdf-vm/asdf.sh"
. "/run/current-system/sw/share/bash-completion/completions/asdf.bash"

Using home-manager with bash I used something like this to ensure it always looked in the right place:

programs.bash = {
  enable = true;
  # ... other things here
  initExtra = ''
    . "${pkgs.asdf-vm}/share/asdf-vm/asdf.sh"
    . "${pkgs.asdf-vm}/share/asdf-vm/completions/asdf.bash"
  '';
};