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build-machine: use ccache for some large packages

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Colin 2023-03-05 03:13:11 +00:00
parent 16e84cae9d
commit 59e4c84800
1 changed files with 19 additions and 0 deletions
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19
hosts/modules/roles/build-machine.nix
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@ -16,5 +16,24 @@ in
# enable cross compilation
boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
# nixpkgs.config.allowUnsupportedSystem = true;
# granular compilation cache
# docs: <https://nixos.wiki/wiki/CCache>
# investigate the cache with `nix-cache --show-stats`
programs.ccache.enable = true;
sane.persist.sys.plaintext = [
{ group = "nixbld"; mode = "0775"; directory = config.programs.ccache.cacheDir; }
];
nix.settings.extra-sandbox-paths = [ config.programs.ccache.cacheDir ];
programs.ccache.packageNames = [
# these have to exist in toplevel package set:
# nixpkgs config creates an overlay which overrides each of these packages to build with ccache
# note a potential bootstrapping problem: if the cache directory above hasn't yet been created, then this blocks deployment.
# solution is to manually disable all these entries on the first deployment
# TODO: distribute these elsewhere; make sure it works on cross-compiled builds
"firefox-esr"
# "qtwebengine"
"webkitgtk"
];
};
}