2c55eba8f4
This commit fixes a papercut in nixos-rebuild where people wanting to switch to a specialisation (or test one) were forced to manually figure out the specialisation's path and run its activation script - since now, there's a dedicated option to do just that. This is a backwards-compatible change which doesn't affect the existing behavior, which - to be fair - might still be considered sus by some people, the painful scenario here being: - you boot into specialisation `foo`, - you run `nixos-rebuild switch`, - whoops, you're no longer at specialisation `foo`, but you're rather brought back to the base system. (it's especially painful for cases where specialisation is used to load extra drivers, e.g. Nvidia, since then launching `nixos-rebuild switch`, while forgetting that you're inside a specialisation, can cause some parts of your system to get accidentally unloaded.) I've tried to mitigate that by improving specialisations so that they create a dedicated file somewhere in `/run/current-system` containing the specialisation's name (which `nixos-rebuild` could then use as the default value for `--specialisation`), but I haven't been able to come up with anything working (plus it would be a breaking change then). Closes https://github.com/NixOS/nixpkgs/issues/174065
38 lines
1.0 KiB
Nix
38 lines
1.0 KiB
Nix
{ substituteAll
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, runtimeShell
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, coreutils
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, gnused
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, gnugrep
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, nix
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, lib
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, nixosTests
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}:
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let
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fallback = import ./../../../../nixos/modules/installer/tools/nix-fallback-paths.nix;
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in
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substituteAll {
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name = "nixos-rebuild";
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src = ./nixos-rebuild.sh;
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dir = "bin";
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isExecutable = true;
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inherit runtimeShell nix;
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nix_x86_64_linux = fallback.x86_64-linux;
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nix_i686_linux = fallback.i686-linux;
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nix_aarch64_linux = fallback.aarch64-linux;
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path = lib.makeBinPath [ coreutils gnused gnugrep ];
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# run some a simple installer tests to make sure nixos-rebuild still works for them
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passthru.tests = {
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simple-installer = nixosTests.installer.simple;
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specialisations = nixosTests.nixos-rebuild-specialisations;
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};
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meta = {
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description = "Rebuild your NixOS configuration and switch to it, on local hosts and remote.";
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homepage = "https://github.com/NixOS/nixpkgs/tree/master/pkgs/os-specific/linux/nixos-rebuild";
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license = lib.licenses.mit;
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maintainers = [ lib.maintainers.Profpatsch ];
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mainProgram = "nixos-rebuild";
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};
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}
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