Flakes: Difference between revisions
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Edit either ~/.config/nix/nix.conf or /etc/nix/nix.conf and add: | Edit either <code>~/.config/nix/nix.conf</code> or <code>/etc/nix/nix.conf</code> and add: | ||
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=== Direnv integration === | === Direnv integration === | ||
Assuming that the flake defines a devShell output attribute and that you are using direnv. Here is how to replace the old use nix stdlib function with the faster flake version: | Assuming that the flake defines a <code>devShell</code> output attribute and that you are using direnv. Here is how to replace the old use nix stdlib function with the faster flake version: | ||
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Copy this in ~/.config/direnv/lib/use_flake.sh or in ~/.config/direnv/direnvrc | Copy this in <code>~/.config/direnv/lib/use_flake.sh</code> or in <code>~/.config/direnv/direnvrc</code> | ||
or directly in your project specific <code>.envrc</code>. | or directly in your project specific <code>.envrc</code>. | ||
With this in place, you can now replace the use nix invocation in the .envrc file with use flake. | With this in place, you can now replace the use nix invocation in the <code>.envrc</code> file with <code>use flake<code>: | ||
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# .envrc | |||
use flake | |||
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The nice thing about this approach is that evaluation is cached, and that the project’s shell is now protected from the nix garbage-collector. | The nice thing about this approach is that evaluation is cached, and that the project’s shell is now protected from the nix garbage-collector. | ||