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Merge pull request #237040 from roberth/flexible-activation
nixos/system: Support pre-activated images
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| { config, lib, pkgs, ... }: | ||
|
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||
| let | ||
| inherit (lib) | ||
| mkOption | ||
| optionalString | ||
| types | ||
| ; | ||
|
|
||
| perlWrapped = pkgs.perl.withPackages (p: with p; [ ConfigIniFiles FileSlurp ]); | ||
|
|
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| systemBuilderArgs = { | ||
| activationScript = config.system.activationScripts.script; | ||
| dryActivationScript = config.system.dryActivationScript; | ||
| }; | ||
|
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||
| systemBuilderCommands = '' | ||
| echo "$activationScript" > $out/activate | ||
| echo "$dryActivationScript" > $out/dry-activate | ||
| substituteInPlace $out/activate --subst-var-by out ''${!toplevelVar} | ||
| substituteInPlace $out/dry-activate --subst-var-by out ''${!toplevelVar} | ||
| chmod u+x $out/activate $out/dry-activate | ||
| unset activationScript dryActivationScript | ||
| mkdir $out/bin | ||
| substitute ${./switch-to-configuration.pl} $out/bin/switch-to-configuration \ | ||
| --subst-var out \ | ||
| --subst-var-by toplevel ''${!toplevelVar} \ | ||
| --subst-var-by coreutils "${pkgs.coreutils}" \ | ||
| --subst-var-by distroId ${lib.escapeShellArg config.system.nixos.distroId} \ | ||
| --subst-var-by installBootLoader ${lib.escapeShellArg config.system.build.installBootLoader} \ | ||
| --subst-var-by localeArchive "${config.i18n.glibcLocales}/lib/locale/locale-archive" \ | ||
| --subst-var-by perl "${perlWrapped}" \ | ||
| --subst-var-by shell "${pkgs.bash}/bin/sh" \ | ||
| --subst-var-by su "${pkgs.shadow.su}/bin/su" \ | ||
| --subst-var-by systemd "${config.systemd.package}" \ | ||
| --subst-var-by utillinux "${pkgs.util-linux}" \ | ||
| ; | ||
| chmod +x $out/bin/switch-to-configuration | ||
| ${optionalString (pkgs.stdenv.hostPlatform == pkgs.stdenv.buildPlatform) '' | ||
| if ! output=$(${perlWrapped}/bin/perl -c $out/bin/switch-to-configuration 2>&1); then | ||
| echo "switch-to-configuration syntax is not valid:" | ||
| echo "$output" | ||
| exit 1 | ||
| fi | ||
| ''} | ||
| ''; | ||
|
|
||
| in | ||
| { | ||
| options = { | ||
| system.activatable = mkOption { | ||
| type = types.bool; | ||
| default = true; | ||
| description = '' | ||
| Whether to add the activation script to the system profile. | ||
| The default, to have the script available all the time, is what we normally | ||
| do, but for image based systems, this may not be needed or not be desirable. | ||
| ''; | ||
| }; | ||
| system.build.separateActivationScript = mkOption { | ||
| type = types.package; | ||
| description = '' | ||
| A separate activation script package that's not part of the system profile. | ||
| This is useful for configurations where `system.activatable` is `false`. | ||
| Otherwise, you can just use `system.build.toplevel`. | ||
| ''; | ||
| }; | ||
| }; | ||
| config = { | ||
| system.systemBuilderCommands = lib.mkIf config.system.activatable systemBuilderCommands; | ||
| system.systemBuilderArgs = lib.mkIf config.system.activatable | ||
| (systemBuilderArgs // { | ||
| toplevelVar = "out"; | ||
| }); | ||
|
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||
| system.build.separateActivationScript = | ||
| pkgs.runCommand | ||
| "separate-activation-script" | ||
| (systemBuilderArgs // { | ||
| toplevelVar = "toplevel"; | ||
| toplevel = config.system.build.toplevel; | ||
| }) | ||
| '' | ||
| mkdir $out | ||
| ${systemBuilderCommands} | ||
| ''; | ||
| }; | ||
| } |
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