29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
148 lines
4 KiB
Nix
148 lines
4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.solr;
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# Assemble all jars needed for solr
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solrJars = pkgs.stdenv.mkDerivation {
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name = "solr-jars";
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src = pkgs.fetchurl {
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url = http://archive.apache.org/dist/tomcat/tomcat-5/v5.5.36/bin/apache-tomcat-5.5.36.tar.gz;
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sha256 = "01mzvh53wrs1p2ym765jwd00gl6kn8f9k3nhdrnhdqr8dhimfb2p";
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};
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buildPhases = [ "unpackPhase" "installPhase" ];
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installPhase = ''
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mkdir -p $out/lib
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cp common/lib/*.jar $out/lib/
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ln -s ${pkgs.ant}/lib/ant/lib/ant.jar $out/lib/
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ln -s ${cfg.solrPackage}/lib/ext/* $out/lib/
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ln -s ${pkgs.openjdk}/lib/openjdk/lib/tools.jar $out/lib/
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'' + optionalString (cfg.extraJars != []) ''
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for f in ${concatStringsSep " " cfg.extraJars}; do
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cp $f $out/lib
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done
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'';
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};
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in {
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options = {
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services.solr = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enables the solr service.
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'';
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};
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javaPackage = mkOption {
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type = types.package;
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default = pkgs.openjre;
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description = ''
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Which Java derivation to use for running solr.
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'';
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};
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solrPackage = mkOption {
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type = types.package;
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default = pkgs.solr;
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description = ''
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Which solr derivation to use for running solr.
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'';
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};
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extraJars = mkOption {
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type = types.listOf types.path;
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default = [];
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description = ''
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List of paths pointing to jars. Jars are copied to commonLibFolder to be available to java/solr.
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'';
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};
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log4jConfiguration = mkOption {
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type = types.lines;
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default = ''
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log4j.rootLogger=INFO, stdout
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log4j.appender.stdout=org.apache.log4j.ConsoleAppender
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log4j.appender.stdout.Target=System.out
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log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
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log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
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'';
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description = ''
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Contents of the <literal>log4j.properties</literal> used. By default,
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everything is logged to stdout (picked up by systemd) with level INFO.
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'';
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};
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user = mkOption {
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type = types.str;
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description = ''
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The user that should run the solr process and.
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the working directories.
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'';
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};
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group = mkOption {
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type = types.str;
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description = ''
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The group that will own the working directory.
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'';
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};
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solrHome = mkOption {
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type = types.str;
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description = ''
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The solr home directory. It is your own responsibility to
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make sure this directory contains a working solr configuration,
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and is writeable by the the user running the solr service.
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Failing to do so, the solr will not start properly.
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'';
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};
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extraJavaOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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Extra command line options given to the java process running
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solr.
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'';
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};
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extraWinstoneOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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Extra command line options given to the Winstone, which is
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the servlet container hosting solr.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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services.winstone.solr = {
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serviceName = "solr";
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inherit (cfg) user group javaPackage;
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warFile = "${cfg.solrPackage}/lib/solr.war";
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extraOptions = [
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"--commonLibFolder=${solrJars}/lib"
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"--useJasper"
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] ++ cfg.extraWinstoneOptions;
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extraJavaOptions = [
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"-Dsolr.solr.home=${cfg.solrHome}"
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"-Dlog4j.configuration=file://${pkgs.writeText "log4j.properties" cfg.log4jConfiguration}"
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] ++ cfg.extraJavaOptions;
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};
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};
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}
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