mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-01 15:11:25 +00:00
e2589b3ca2
This version should have more conventional regexes that work across many platforms and regex engines. This is an issue because up until Nix 1.11, Nix called out to the libc regex matcher, which behaved differently on Darwin and Linux. And in Nix 1.12, we're moving to std::regex which will also behave differently here. And yes, I do actually evaluate make-disk-image.nix on Darwin ;)
46 lines
1.5 KiB
Nix
46 lines
1.5 KiB
Nix
# Provide an initial copy of the NixOS channel so that the user
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# doesn't need to run "nix-channel --update" first.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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nixpkgs = lib.cleanSource pkgs.path;
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# We need a copy of the Nix expressions for Nixpkgs and NixOS on the
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# CD. These are installed into the "nixos" channel of the root
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# user, as expected by nixos-rebuild/nixos-install. FIXME: merge
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# with make-channel.nix.
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channelSources = pkgs.runCommand "nixos-${config.system.nixosVersion}"
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{ }
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''
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mkdir -p $out
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cp -prd ${nixpkgs} $out/nixos
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chmod -R u+w $out/nixos
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if [ ! -e $out/nixos/nixpkgs ]; then
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ln -s . $out/nixos/nixpkgs
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fi
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echo -n ${config.system.nixosVersionSuffix} > $out/nixos/.version-suffix
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'';
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in
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{
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# Provide the NixOS/Nixpkgs sources in /etc/nixos. This is required
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# for nixos-install.
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boot.postBootCommands = mkAfter
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''
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if ! [ -e /var/lib/nixos/did-channel-init ]; then
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echo "unpacking the NixOS/Nixpkgs sources..."
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mkdir -p /nix/var/nix/profiles/per-user/root
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${config.nix.package.out}/bin/nix-env -p /nix/var/nix/profiles/per-user/root/channels \
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-i ${channelSources} --quiet --option build-use-substitutes false
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mkdir -m 0700 -p /root/.nix-defexpr
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ln -s /nix/var/nix/profiles/per-user/root/channels /root/.nix-defexpr/channels
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mkdir -m 0755 -p /var/lib/nixos
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touch /var/lib/nixos/did-channel-init
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fi
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'';
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}
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