474 lines
16 KiB
Nix
474 lines
16 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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inherit (lib) mkDefault mkEnableOption mkForce mkIf mkMerge mkOption;
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inherit (lib) concatStringsSep literalExample mapAttrsToList optional optionals optionalString types;
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cfg = config.services.mediawiki;
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fpm = config.services.phpfpm.pools.mediawiki;
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user = "mediawiki";
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group = config.services.httpd.group;
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cacheDir = "/var/cache/mediawiki";
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stateDir = "/var/lib/mediawiki";
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pkg = pkgs.stdenv.mkDerivation rec {
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pname = "mediawiki-full";
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version = src.version;
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src = cfg.package;
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installPhase = ''
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mkdir -p $out
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cp -r * $out/
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rm -rf $out/share/mediawiki/skins/*
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rm -rf $out/share/mediawiki/extensions/*
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${concatStringsSep "\n" (mapAttrsToList (k: v: ''
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ln -s ${v} $out/share/mediawiki/skins/${k}
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'') cfg.skins)}
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${concatStringsSep "\n" (mapAttrsToList (k: v: ''
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ln -s ${if v != null then v else "$src/share/mediawiki/extensions/${k}"} $out/share/mediawiki/extensions/${k}
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'') cfg.extensions)}
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'';
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};
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mediawikiScripts = pkgs.runCommand "mediawiki-scripts" {
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buildInputs = [ pkgs.makeWrapper ];
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preferLocalBuild = true;
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} ''
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mkdir -p $out/bin
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for i in changePassword.php createAndPromote.php userOptions.php edit.php nukePage.php update.php; do
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makeWrapper ${pkgs.php}/bin/php $out/bin/mediawiki-$(basename $i .php) \
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--set MEDIAWIKI_CONFIG ${mediawikiConfig} \
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--add-flags ${pkg}/share/mediawiki/maintenance/$i
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done
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'';
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mediawikiConfig = pkgs.writeText "LocalSettings.php" ''
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<?php
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# Protect against web entry
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if ( !defined( 'MEDIAWIKI' ) ) {
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exit;
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}
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$wgSitename = "${cfg.name}";
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$wgMetaNamespace = false;
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## The URL base path to the directory containing the wiki;
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## defaults for all runtime URL paths are based off of this.
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## For more information on customizing the URLs
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## (like /w/index.php/Page_title to /wiki/Page_title) please see:
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## https://www.mediawiki.org/wiki/Manual:Short_URL
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$wgScriptPath = "";
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## The protocol and server name to use in fully-qualified URLs
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$wgServer = "${if cfg.virtualHost.addSSL || cfg.virtualHost.forceSSL || cfg.virtualHost.onlySSL then "https" else "http"}://${cfg.virtualHost.hostName}";
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## The URL path to static resources (images, scripts, etc.)
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$wgResourceBasePath = $wgScriptPath;
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## The URL path to the logo. Make sure you change this from the default,
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## or else you'll overwrite your logo when you upgrade!
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$wgLogo = "$wgResourceBasePath/resources/assets/wiki.png";
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## UPO means: this is also a user preference option
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$wgEnableEmail = true;
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$wgEnableUserEmail = true; # UPO
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$wgEmergencyContact = "${if cfg.virtualHost.adminAddr != null then cfg.virtualHost.adminAddr else config.services.httpd.adminAddr}";
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$wgPasswordSender = $wgEmergencyContact;
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$wgEnotifUserTalk = false; # UPO
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$wgEnotifWatchlist = false; # UPO
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$wgEmailAuthentication = true;
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## Database settings
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$wgDBtype = "${cfg.database.type}";
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$wgDBserver = "${cfg.database.host}:${if cfg.database.socket != null then cfg.database.socket else toString cfg.database.port}";
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$wgDBname = "${cfg.database.name}";
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$wgDBuser = "${cfg.database.user}";
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${optionalString (cfg.database.passwordFile != null) "$wgDBpassword = file_get_contents(\"${cfg.database.passwordFile}\");"}
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${optionalString (cfg.database.type == "mysql" && cfg.database.tablePrefix != null) ''
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# MySQL specific settings
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$wgDBprefix = "${cfg.database.tablePrefix}";
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''}
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${optionalString (cfg.database.type == "mysql") ''
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# MySQL table options to use during installation or update
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$wgDBTableOptions = "ENGINE=InnoDB, DEFAULT CHARSET=binary";
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''}
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## Shared memory settings
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$wgMainCacheType = CACHE_NONE;
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$wgMemCachedServers = [];
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${optionalString (cfg.uploadsDir != null) ''
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$wgEnableUploads = true;
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$wgUploadDirectory = "${cfg.uploadsDir}";
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''}
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$wgUseImageMagick = true;
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$wgImageMagickConvertCommand = "${pkgs.imagemagick}/bin/convert";
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# InstantCommons allows wiki to use images from https://commons.wikimedia.org
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$wgUseInstantCommons = false;
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# Periodically send a pingback to https://www.mediawiki.org/ with basic data
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# about this MediaWiki instance. The Wikimedia Foundation shares this data
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# with MediaWiki developers to help guide future development efforts.
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$wgPingback = true;
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## If you use ImageMagick (or any other shell command) on a
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## Linux server, this will need to be set to the name of an
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## available UTF-8 locale
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$wgShellLocale = "C.UTF-8";
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## Set $wgCacheDirectory to a writable directory on the web server
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## to make your wiki go slightly faster. The directory should not
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## be publically accessible from the web.
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$wgCacheDirectory = "${cacheDir}";
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# Site language code, should be one of the list in ./languages/data/Names.php
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$wgLanguageCode = "en";
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$wgSecretKey = file_get_contents("${stateDir}/secret.key");
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# Changing this will log out all existing sessions.
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$wgAuthenticationTokenVersion = "";
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## For attaching licensing metadata to pages, and displaying an
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## appropriate copyright notice / icon. GNU Free Documentation
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## License and Creative Commons licenses are supported so far.
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$wgRightsPage = ""; # Set to the title of a wiki page that describes your license/copyright
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$wgRightsUrl = "";
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$wgRightsText = "";
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$wgRightsIcon = "";
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# Path to the GNU diff3 utility. Used for conflict resolution.
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$wgDiff = "${pkgs.diffutils}/bin/diff";
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$wgDiff3 = "${pkgs.diffutils}/bin/diff3";
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# Enabled skins.
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${concatStringsSep "\n" (mapAttrsToList (k: v: "wfLoadSkin('${k}');") cfg.skins)}
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# Enabled extensions.
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${concatStringsSep "\n" (mapAttrsToList (k: v: "wfLoadExtension('${k}');") cfg.extensions)}
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# End of automatically generated settings.
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# Add more configuration options below.
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${cfg.extraConfig}
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'';
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in
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{
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# interface
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options = {
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services.mediawiki = {
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enable = mkEnableOption "MediaWiki";
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package = mkOption {
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type = types.package;
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default = pkgs.mediawiki;
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description = "Which MediaWiki package to use.";
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};
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name = mkOption {
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type = types.str;
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default = "MediaWiki";
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example = "Foobar Wiki";
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description = "Name of the wiki.";
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};
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uploadsDir = mkOption {
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type = types.nullOr types.path;
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default = "${stateDir}/uploads";
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description = ''
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This directory is used for uploads of pictures. The directory passed here is automatically
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created and permissions adjusted as required.
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'';
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};
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passwordFile = mkOption {
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type = types.path;
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description = "A file containing the initial password for the admin user.";
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example = "/run/keys/mediawiki-password";
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};
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skins = mkOption {
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default = {};
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type = types.attrsOf types.path;
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description = ''
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Attribute set of paths whose content is copied to the <filename>skins</filename>
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subdirectory of the MediaWiki installation in addition to the default skins.
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'';
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};
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extensions = mkOption {
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default = {};
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type = types.attrsOf (types.nullOr types.path);
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description = ''
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Attribute set of paths whose content is copied to the <filename>extensions</filename>
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subdirectory of the MediaWiki installation and enabled in configuration.
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Use <literal>null</literal> instead of path to enable extensions that are part of MediaWiki.
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'';
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example = literalExample ''
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{
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Matomo = pkgs.fetchzip {
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url = "https://github.com/DaSchTour/matomo-mediawiki-extension/archive/v4.0.1.tar.gz";
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sha256 = "0g5rd3zp0avwlmqagc59cg9bbkn3r7wx7p6yr80s644mj6dlvs1b";
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};
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ParserFunctions = null;
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}
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'';
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};
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database = {
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type = mkOption {
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type = types.enum [ "mysql" "postgres" "sqlite" "mssql" "oracle" ];
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default = "mysql";
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description = "Database engine to use. MySQL/MariaDB is the database of choice by MediaWiki developers.";
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};
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host = mkOption {
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type = types.str;
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default = "localhost";
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description = "Database host address.";
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};
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port = mkOption {
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type = types.port;
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default = 3306;
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description = "Database host port.";
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};
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name = mkOption {
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type = types.str;
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default = "mediawiki";
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description = "Database name.";
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};
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user = mkOption {
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type = types.str;
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default = "mediawiki";
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description = "Database user.";
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};
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passwordFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/run/keys/mediawiki-dbpassword";
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description = ''
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A file containing the password corresponding to
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<option>database.user</option>.
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'';
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};
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tablePrefix = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = ''
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If you only have access to a single database and wish to install more than
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one version of MediaWiki, or have other applications that also use the
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database, you can give the table names a unique prefix to stop any naming
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conflicts or confusion.
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See <link xlink:href='https://www.mediawiki.org/wiki/Manual:$wgDBprefix'/>.
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'';
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};
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socket = mkOption {
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type = types.nullOr types.path;
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default = if cfg.database.createLocally then "/run/mysqld/mysqld.sock" else null;
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defaultText = "/run/mysqld/mysqld.sock";
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description = "Path to the unix socket file to use for authentication.";
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};
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createLocally = mkOption {
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type = types.bool;
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default = cfg.database.type == "mysql";
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defaultText = "true";
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description = ''
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Create the database and database user locally.
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This currently only applies if database type "mysql" is selected.
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'';
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};
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};
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virtualHost = mkOption {
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type = types.submodule (import ../web-servers/apache-httpd/vhost-options.nix);
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example = literalExample ''
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{
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hostName = "mediawiki.example.org";
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adminAddr = "webmaster@example.org";
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forceSSL = true;
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enableACME = true;
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}
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'';
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description = ''
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Apache configuration can be done by adapting <option>services.httpd.virtualHosts</option>.
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See <xref linkend="opt-services.httpd.virtualHosts"/> for further information.
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'';
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};
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poolConfig = mkOption {
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type = with types; attrsOf (oneOf [ str int bool ]);
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default = {
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"pm" = "dynamic";
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"pm.max_children" = 32;
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"pm.start_servers" = 2;
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"pm.min_spare_servers" = 2;
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"pm.max_spare_servers" = 4;
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"pm.max_requests" = 500;
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};
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description = ''
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Options for the MediaWiki PHP pool. See the documentation on <literal>php-fpm.conf</literal>
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for details on configuration directives.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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description = ''
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Any additional text to be appended to MediaWiki's
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LocalSettings.php configuration file. For configuration
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settings, see <link xlink:href="https://www.mediawiki.org/wiki/Manual:Configuration_settings"/>.
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'';
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default = "";
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example = ''
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$wgEnableEmail = false;
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'';
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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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assertions = [
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{ assertion = cfg.database.createLocally -> cfg.database.type == "mysql";
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message = "services.mediawiki.createLocally is currently only supported for database type 'mysql'";
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}
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{ assertion = cfg.database.createLocally -> cfg.database.user == user;
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message = "services.mediawiki.database.user must be set to ${user} if services.mediawiki.database.createLocally is set true";
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}
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{ assertion = cfg.database.createLocally -> cfg.database.socket != null;
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message = "services.mediawiki.database.socket must be set if services.mediawiki.database.createLocally is set to true";
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}
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{ assertion = cfg.database.createLocally -> cfg.database.passwordFile == null;
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message = "a password cannot be specified if services.mediawiki.database.createLocally is set to true";
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}
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];
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services.mediawiki.skins = {
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MonoBook = "${cfg.package}/share/mediawiki/skins/MonoBook";
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Timeless = "${cfg.package}/share/mediawiki/skins/Timeless";
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Vector = "${cfg.package}/share/mediawiki/skins/Vector";
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};
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services.mysql = mkIf cfg.database.createLocally {
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enable = true;
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package = mkDefault pkgs.mariadb;
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ensureDatabases = [ cfg.database.name ];
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ensureUsers = [
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{ name = cfg.database.user;
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ensurePermissions = { "${cfg.database.name}.*" = "ALL PRIVILEGES"; };
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}
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];
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};
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services.phpfpm.pools.mediawiki = {
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inherit user group;
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phpEnv.MEDIAWIKI_CONFIG = "${mediawikiConfig}";
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settings = {
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"listen.owner" = config.services.httpd.user;
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"listen.group" = config.services.httpd.group;
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} // cfg.poolConfig;
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};
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services.httpd = {
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enable = true;
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extraModules = [ "proxy_fcgi" ];
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virtualHosts.${cfg.virtualHost.hostName} = mkMerge [ cfg.virtualHost {
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documentRoot = mkForce "${pkg}/share/mediawiki";
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extraConfig = ''
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<Directory "${pkg}/share/mediawiki">
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<FilesMatch "\.php$">
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<If "-f %{REQUEST_FILENAME}">
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SetHandler "proxy:unix:${fpm.socket}|fcgi://localhost/"
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</If>
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</FilesMatch>
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Require all granted
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DirectoryIndex index.php
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AllowOverride All
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</Directory>
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'' + optionalString (cfg.uploadsDir != null) ''
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Alias "/images" "${cfg.uploadsDir}"
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<Directory "${cfg.uploadsDir}">
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Require all granted
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</Directory>
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'';
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} ];
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};
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systemd.tmpfiles.rules = [
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"d '${stateDir}' 0750 ${user} ${group} - -"
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"d '${cacheDir}' 0750 ${user} ${group} - -"
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] ++ optionals (cfg.uploadsDir != null) [
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"d '${cfg.uploadsDir}' 0750 ${user} ${group} - -"
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"Z '${cfg.uploadsDir}' 0750 ${user} ${group} - -"
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];
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systemd.services.mediawiki-init = {
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wantedBy = [ "multi-user.target" ];
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before = [ "phpfpm-mediawiki.service" ];
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after = optional cfg.database.createLocally "mysql.service";
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script = ''
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if ! test -e "${stateDir}/secret.key"; then
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tr -dc A-Za-z0-9 </dev/urandom 2>/dev/null | head -c 64 > ${stateDir}/secret.key
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fi
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echo "exit( wfGetDB( DB_MASTER )->tableExists( 'user' ) ? 1 : 0 );" | \
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${pkgs.php}/bin/php ${pkg}/share/mediawiki/maintenance/eval.php --conf ${mediawikiConfig} && \
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${pkgs.php}/bin/php ${pkg}/share/mediawiki/maintenance/install.php \
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--confpath /tmp \
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--scriptpath / \
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--dbserver ${cfg.database.host}${optionalString (cfg.database.socket != null) ":${cfg.database.socket}"} \
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--dbport ${toString cfg.database.port} \
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--dbname ${cfg.database.name} \
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${optionalString (cfg.database.tablePrefix != null) "--dbprefix ${cfg.database.tablePrefix}"} \
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--dbuser ${cfg.database.user} \
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${optionalString (cfg.database.passwordFile != null) "--dbpassfile ${cfg.database.passwordFile}"} \
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--passfile ${cfg.passwordFile} \
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${cfg.name} \
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admin
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${pkgs.php}/bin/php ${pkg}/share/mediawiki/maintenance/update.php --conf ${mediawikiConfig} --quick
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'';
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serviceConfig = {
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Type = "oneshot";
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User = user;
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Group = group;
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PrivateTmp = true;
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};
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};
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systemd.services.httpd.after = optional (cfg.database.createLocally && cfg.database.type == "mysql") "mysql.service";
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users.users.${user} = {
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group = group;
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isSystemUser = true;
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};
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environment.systemPackages = [ mediawikiScripts ];
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};
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}
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