88 lines
1.7 KiB
Nix
88 lines
1.7 KiB
Nix
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{pkgs, config}:
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# Show the NixOS manual on tty7
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# Originally used only by installation CD
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let
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inherit (pkgs.lib) mkOption;
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options = {
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services = {
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showManual = {
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enable = mkOption {
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default = false;
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description = "
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Whether to show the NixOS manual on the tty7
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";
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};
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ttyNumber = mkOption {
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default = "7";
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description = "
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TTY number name to show the manual on
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";
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};
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browserPackage = mkOption {
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default = pkgs.w3m;
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description = "
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Package containing the browser to be used
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";
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};
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browserCommand = mkOption {
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default = "bin/w3m";
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description = "
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Command (command path is relative to browserPackage) to run the browser
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";
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};
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manualFile = mkOption {
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default = null;
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description = "
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NixOS manual HTML file
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";
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};
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};
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};
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};
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inherit(pkgs.lib) optional;
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inherit (config.services.showManual) enable ttyNumber browserPackage browserCommand
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manualFile;
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realManualFile = if manualFile == null then
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(import ../doc/manual {nixpkgs = pkgs;})+"/manual.html"
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else manualFile;
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in
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{
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require = [
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options
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];
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boot = {
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extraTTYs = optional enable ttyNumber;
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};
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services = {
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extraJobs = optional enable {
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name = "showManual";
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job = ''
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description "NixOS manual"
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start on udev
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stop on shutdown
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respawn ${browserPackage}/${browserCommand} ${realManualFile} < /dev/tty${toString ttyNumber} > /dev/tty${toString ttyNumber} 2>&1
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'';
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};
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ttyBackgrounds = {
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specificThemes = optional enable {
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tty = ttyNumber;
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theme = pkgs.themes "green";
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};
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};
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mingetty = {
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helpLine = if enable then "\nPress <Alt-F${toString ttyNumber}> for NixOS manual." else "";
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};
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};
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}
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