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document how evals are executed, closes #20

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Graham Christensen 2017-12-20 07:01:32 -05:00
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README.md
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@ -78,16 +78,36 @@ looks good to me!
as it'll try to build `list` `of` `attrs` `looks` `good` `to` `me!`. as it'll try to build `list` `of` `attrs` `looks` `good` `to` `me!`.
# Why did my build fail? # How does OfBorg call nix-build?
Builds are run like: Builds are run like:
> HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-build ./default.nix \ > HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-build ./default.nix
> --no-out-link --keep-going -A hello \ > --no-out-link --keep-going -A hello
> --option restrict-eval true \ > --option restrict-eval true
> --option build-timeout 1800 \ > --option build-timeout 1800
> --argstr system thesystem > --argstr system thesystem
> --show-trace
# How does OfBorg call nix-instantiate?
NixOS evals are run like:
> HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate ./nixos/release.nix
> -A manual
> --option restrict-eval true
> --option build-timeout 1800
> --argstr system thesystem
> --show-trace
Nixpkgs evals are run like:
> HOME=/homeless-shelter NIX_PATH=nixpkgs=$(pwd) nix-instantiate ./pkgs/top-level/release.nix
> -A manual
> --option restrict-eval true
> --option build-timeout 1800
> --argstr system thesystem
> --show-trace
--- ---