53 lines
1.6 KiB
Nix
53 lines
1.6 KiB
Nix
# generate the script used to activate the configuration.
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{pkgs, config, ...}:
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let
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inherit (pkgs.stringsWithDeps) textClosureMap noDepEntry;
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inherit (pkgs.lib) mkOption mergeTypedOption mergeAttrs mapRecordFlatten
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mapAttrs addErrorContext fold id filter;
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inherit (builtins) attrNames;
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addAttributeName = mapAttrs (a: v: v // {
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text = ''
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#### actionScripts snippet ${a} :
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# ========================================
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${v.text}
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'';
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});
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in
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{
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system = {
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activationScripts = mkOption {
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default = [];
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example = {
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stdio = {
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text = "
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# Needed by some programs.
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ln -sfn /proc/self/fd /dev/fd
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ln -sfn /proc/self/fd/0 /dev/stdin
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ln -sfn /proc/self/fd/1 /dev/stdout
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ln -sfn /proc/self/fd/2 /dev/stderr
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";
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deps = [];
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};
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};
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description = ''
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Activate the new configuration (i.e., update /etc, make accounts,
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and so on).
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'';
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merge = mergeTypedOption "script" builtins.isAttrs (fold mergeAttrs {});
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apply = set:
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let withHeadlines = addAttributeName set;
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activateLib = removeAttrs withHeadlines ["activate"];
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activateLibNames = attrNames activateLib;
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in {
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script = pkgs.writeScript "nixos-activation-script"
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("#!/bin/sh\n"
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+ textClosureMap id activateLib activateLibNames + "\n"
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# make sure that the activate snippet is added last.
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+ withHeadlines.activate.text);
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};
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};
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};
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}
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