mirror of
https://github.com/NixOS/nixpkgs.git
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2e751c0772
the conversion procedure is simple: - find all things that look like options, ie calls to either `mkOption` or `lib.mkOption` that take an attrset. remember the attrset as the option - for all options, find a `description` attribute who's value is not a call to `mdDoc` or `lib.mdDoc` - textually convert the entire value of the attribute to MD with a few simple regexes (the set from mdize-module.sh) - if the change produced a change in the manual output, discard - if the change kept the manual unchanged, add some text to the description to make sure we've actually found an option. if the manual changes this time, keep the converted description this procedure converts 80% of nixos options to markdown. around 2000 options remain to be inspected, but most of those fail the "does not change the manual output check": currently the MD conversion process does not faithfully convert docbook tags like <code> and <package>, so any option using such tags will not be converted at all.
221 lines
6.2 KiB
Nix
221 lines
6.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.magnetico;
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dataDir = "/var/lib/magnetico";
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credFile = with cfg.web;
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if credentialsFile != null
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then credentialsFile
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else pkgs.writeText "magnetico-credentials"
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(concatStrings (mapAttrsToList
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(user: hash: "${user}:${hash}\n")
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cfg.web.credentials));
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# default options in magneticod/main.go
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dbURI = concatStrings
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[ "sqlite3://${dataDir}/database.sqlite3"
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"?_journal_mode=WAL"
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"&_busy_timeout=3000"
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"&_foreign_keys=true"
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];
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crawlerArgs = with cfg.crawler; escapeShellArgs
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([ "--database=${dbURI}"
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"--indexer-addr=${address}:${toString port}"
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"--indexer-max-neighbors=${toString maxNeighbors}"
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"--leech-max-n=${toString maxLeeches}"
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] ++ extraOptions);
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webArgs = with cfg.web; escapeShellArgs
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([ "--database=${dbURI}"
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(if (cfg.web.credentialsFile != null || cfg.web.credentials != { })
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then "--credentials=${toString credFile}"
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else "--no-auth")
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"--addr=${address}:${toString port}"
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] ++ extraOptions);
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in {
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###### interface
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options.services.magnetico = {
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enable = mkEnableOption "Magnetico, Bittorrent DHT crawler";
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crawler.address = mkOption {
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type = types.str;
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default = "0.0.0.0";
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example = "1.2.3.4";
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description = lib.mdDoc ''
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Address to be used for indexing DHT nodes.
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'';
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};
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crawler.port = mkOption {
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type = types.port;
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default = 0;
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description = lib.mdDoc ''
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Port to be used for indexing DHT nodes.
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This port should be added to
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{option}`networking.firewall.allowedTCPPorts`.
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'';
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};
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crawler.maxNeighbors = mkOption {
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type = types.ints.positive;
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default = 1000;
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description = lib.mdDoc ''
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Maximum number of simultaneous neighbors of an indexer.
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Be careful changing this number: high values can very
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easily cause your network to be congested or even crash
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your router.
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'';
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};
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crawler.maxLeeches = mkOption {
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type = types.ints.positive;
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default = 200;
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description = lib.mdDoc ''
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Maximum number of simultaneous leeches.
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'';
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};
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crawler.extraOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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description = lib.mdDoc ''
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Extra command line arguments to pass to magneticod.
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'';
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};
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web.address = mkOption {
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type = types.str;
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default = "localhost";
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example = "1.2.3.4";
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description = lib.mdDoc ''
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Address the web interface will listen to.
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'';
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};
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web.port = mkOption {
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type = types.port;
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default = 8080;
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description = lib.mdDoc ''
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Port the web interface will listen to.
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'';
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};
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web.credentials = mkOption {
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type = types.attrsOf types.str;
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default = {};
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example = lib.literalExpression ''
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{
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myuser = "$2y$12$YE01LZ8jrbQbx6c0s2hdZO71dSjn2p/O9XsYJpz.5968yCysUgiaG";
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}
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'';
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description = ''
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The credentials to access the web interface, in case authentication is
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enabled, in the format <literal>username:hash</literal>. If unset no
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authentication will be required.
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Usernames must start with a lowercase ([a-z]) ASCII character, might
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contain non-consecutive underscores except at the end, and consists of
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small-case a-z characters and digits 0-9. The
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<command>htpasswd</command> tool from the <package>apacheHttpd
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</package> package may be used to generate the hash: <command>htpasswd
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-bnBC 12 username password</command>
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<warning>
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<para>
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The hashes will be stored world-readable in the nix store.
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Consider using the <literal>credentialsFile</literal> option if you
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don't want this.
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</para>
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</warning>
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'';
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};
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web.credentialsFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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description = ''
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The path to the file holding the credentials to access the web
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interface. If unset no authentication will be required.
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The file must constain user names and password hashes in the format
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<literal>username:hash </literal>, one for each line. Usernames must
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start with a lowecase ([a-z]) ASCII character, might contain
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non-consecutive underscores except at the end, and consists of
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small-case a-z characters and digits 0-9.
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The <command>htpasswd</command> tool from the <package>apacheHttpd
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</package> package may be used to generate the hash:
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<command>htpasswd -bnBC 12 username password</command>
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'';
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};
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web.extraOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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description = lib.mdDoc ''
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Extra command line arguments to pass to magneticow.
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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users.users.magnetico = {
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description = "Magnetico daemons user";
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group = "magnetico";
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isSystemUser = true;
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};
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users.groups.magnetico = {};
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systemd.services.magneticod = {
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description = "Magnetico DHT crawler";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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serviceConfig = {
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User = "magnetico";
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Restart = "on-failure";
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ExecStart = "${pkgs.magnetico}/bin/magneticod ${crawlerArgs}";
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};
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};
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systemd.services.magneticow = {
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description = "Magnetico web interface";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" "magneticod.service"];
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serviceConfig = {
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User = "magnetico";
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StateDirectory = "magnetico";
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Restart = "on-failure";
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ExecStart = "${pkgs.magnetico}/bin/magneticow ${webArgs}";
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};
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};
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assertions =
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[
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{
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assertion = cfg.web.credentialsFile == null || cfg.web.credentials == { };
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message = ''
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The options services.magnetico.web.credentialsFile and
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services.magnetico.web.credentials are mutually exclusives.
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'';
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}
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];
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};
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meta.maintainers = with lib.maintainers; [ rnhmjoj ];
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}
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