nixpkgs/nixos/modules/services/misc/gollum.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.gollum;
in
{
options.services.gollum = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable the Gollum service.";
};
address = mkOption {
type = types.str;
default = "0.0.0.0";
description = "IP address on which the web server will listen.";
};
port = mkOption {
type = types.int;
default = 4567;
description = "Port on which the web server will run.";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Content of the configuration file";
};
mathjax = mkOption {
type = types.bool;
default = false;
description = "Enable support for math rendering using MathJax";
};
allowUploads = mkOption {
type = types.nullOr (types.enum [ "dir" "page" ]);
default = null;
description = "Enable uploads of external files";
};
emoji = mkOption {
type = types.bool;
default = false;
description = "Parse and interpret emoji tags";
};
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branch = mkOption {
type = types.str;
default = "master";
example = "develop";
description = "Git branch to serve";
};
stateDir = mkOption {
type = types.path;
default = "/var/lib/gollum";
description = "Specifies the path of the repository directory. If it does not exist, Gollum will create it on startup.";
};
};
config = mkIf cfg.enable {
users.users.gollum = {
group = config.users.users.gollum.name;
description = "Gollum user";
createHome = false;
};
users.groups.gollum = { };
systemd.services.gollum = {
description = "Gollum wiki";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = [ pkgs.git ];
preStart = let
userName = config.users.users.gollum.name;
groupName = config.users.groups.gollum.name;
in ''
# All of this is safe to be run on an existing repo
mkdir -p ${cfg.stateDir}
git init ${cfg.stateDir}
chmod 755 ${cfg.stateDir}
chown -R ${userName}:${groupName} ${cfg.stateDir}
'';
serviceConfig = {
User = config.users.users.gollum.name;
Group = config.users.groups.gollum.name;
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PermissionsStartOnly = true;
ExecStart = ''
${pkgs.gollum}/bin/gollum \
--port ${toString cfg.port} \
--host ${cfg.address} \
--config ${builtins.toFile "gollum-config.rb" cfg.extraConfig} \
--ref ${cfg.branch} \
${optionalString cfg.mathjax "--mathjax"} \
${optionalString cfg.emoji "--emoji"} \
${optionalString (cfg.allowUploads != null) "--allow-uploads ${cfg.allowUploads}"} \
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${cfg.stateDir}
'';
};
};
};
}