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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.
113 lines
3.2 KiB
Nix
113 lines
3.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.gitDaemon;
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gitUser = "git";
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in
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{
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###### interface
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options = {
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services.gitDaemon = {
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enable = mkOption {
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default = false;
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description = ''
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Enable Git daemon, which allows public hosting of git repositories
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without any access controls. This is mostly intended for read-only access.
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You can allow write access by setting daemon.receivepack configuration
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item of the repository to true. This is solely meant for a closed LAN setting
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where everybody is friendly.
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If you need any access controls, use something else.
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'';
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};
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basePath = mkOption {
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default = "";
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example = "/srv/git/";
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description = ''
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Remap all the path requests as relative to the given path. For example,
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if you set base-path to /srv/git, then if you later try to pull
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git://example.com/hello.git, Git daemon will interpret the path as /srv/git/hello.git.
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'';
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};
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exportAll = mkOption {
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default = false;
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description = ''
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Publish all directories that look like Git repositories (have the objects
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and refs subdirectories), even if they do not have the git-daemon-export-ok file.
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If disabled, you need to touch .git/git-daemon-export-ok in each repository
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you want the daemon to publish.
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Warning: enabling this without a repository whitelist or basePath
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publishes every git repository you have.
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'';
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};
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repositories = mkOption {
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default = [];
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example = [ "/srv/git" "/home/user/git/repo2" ];
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description = ''
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A whitelist of paths of git repositories, or directories containing repositories
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all of which would be published. Paths must not end in "/".
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Warning: leaving this empty and enabling exportAll publishes all
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repositories in your filesystem or basePath if specified.
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'';
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};
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listenAddress = mkOption {
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default = "";
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example = "example.com";
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description = "Listen on a specific IP address or hostname.";
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};
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port = mkOption {
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default = 9418;
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description = "Port to listen on.";
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};
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options = mkOption {
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default = "";
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description = "Extra configuration options to be passed to Git daemon.";
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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.extraUsers = singleton
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{ name = gitUser;
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uid = config.ids.uids.git;
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description = "Git daemon user";
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};
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users.extraGroups = singleton
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{ name = gitUser;
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gid = config.ids.gids.git;
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};
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jobs.gitDaemon = {
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name = "git-daemon";
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startOn = "ip-up";
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exec = "${pkgs.git}/bin/git daemon --reuseaddr "
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+ (optionalString (cfg.basePath != "") "--base-path=${cfg.basePath} ")
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+ (optionalString (cfg.listenAddress != "") "--listen=${cfg.listenAddress} ")
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+ "--port=${toString cfg.port} --user=${gitUser} --group=${gitUser} ${cfg.options} "
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+ "--verbose " + (optionalString cfg.exportAll "--export-all") + concatStringsSep " " cfg.repositories;
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};
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};
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}
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