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d466b1fc82
This simplifies OS configuration: users no longer need to be aware of what a given service depends on. See the discussion at <https://lists.gnu.org/archive/html/guix-devel/2018-01/msg00114.html>. * gnu/services.scm (missing-target-error): New procedure. (service-back-edges): Use it. (instantiate-missing-services): New procedure. * gnu/system.scm (operating-system-services): Call 'instantiate-missing-services'. * tests/services.scm ("instantiate-missing-services") ("instantiate-missing-services, no default value"): New tests. * gnu/services/version-control.scm (cgit-service-type)[extensions]: Add FCGIWRAP-SERVICE-TYPE. * gnu/tests/version-control.scm (%cgit-os): Remove NGINX-SERVICE-TYPE and FCGIWRAP-SERVICE-TYPE instances. * doc/guix.texi (Log Rotation): Remove 'mcron-service-type' in example. (Miscellaneous Services): Remove 'nginx-service-type' and 'fcgiwrap-service-type' in Cgit example.
320 lines
12 KiB
Scheme
320 lines
12 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
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;;; Copyright © 2016 Sou Bunnbu <iyzsong@member.fsf.org>
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;;; Copyright © 2017 Oleg Pykhalov <go.wigust@gmail.com>
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;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu services version-control)
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#:use-module (gnu services)
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#:use-module (gnu services base)
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#:use-module (gnu services shepherd)
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#:use-module (gnu services web)
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#:use-module (gnu system shadow)
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#:use-module (gnu packages version-control)
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#:use-module (gnu packages admin)
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#:use-module (guix records)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 match)
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#:export (git-daemon-service
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git-daemon-service-type
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git-daemon-configuration
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git-daemon-configuration?
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<cgit-configuration-file>
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cgit-configuration-file
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cgit-configuration-file?
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cgit-configuration-file-css
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cgit-configuration-file-logo
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cgit-configuration-file-robots
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cgit-configuration-file-virtual-root
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cgit-configuration-file-repository-directory
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<cgit-configuration>
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cgit-configuration
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cgit-configuration?
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cgit-configuration-config-file
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cgit-configuration-package
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%cgit-configuration-nginx
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cgit-configuration-nginx-config
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cgit-service-type
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git-http-configuration
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git-http-configuration?
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git-http-nginx-location-configuration))
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;;; Commentary:
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;;;
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;;; Version Control related services.
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;;;
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;;; Code:
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;;;
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;;; Git daemon.
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;;;
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(define-record-type* <git-daemon-configuration>
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git-daemon-configuration
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make-git-daemon-configuration
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git-daemon-configuration?
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(package git-daemon-configuration-package ;package
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(default git))
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(export-all? git-daemon-configuration-export-all ;boolean
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(default #f))
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(base-path git-daemon-configuration-base-path ;string | #f
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(default "/srv/git"))
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(user-path git-daemon-configuration-user-path ;string | #f
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(default #f))
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(listen git-daemon-configuration-listen ;list of string
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(default '()))
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(port git-daemon-configuration-port ;number | #f
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(default #f))
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(whitelist git-daemon-configuration-whitelist ;list of string
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(default '()))
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(extra-options git-daemon-configuration-extra-options ;list of string
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(default '())))
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(define git-daemon-shepherd-service
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(match-lambda
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(($ <git-daemon-configuration>
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package export-all? base-path user-path
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listen port whitelist extra-options)
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(let* ((git (file-append package "/bin/git"))
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(command `(,git
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"daemon" "--syslog" "--reuseaddr"
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,@(if export-all?
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'("--export-all")
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'())
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,@(if base-path
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`(,(string-append "--base-path=" base-path))
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'())
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,@(if user-path
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`(,(string-append "--user-path=" user-path))
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'())
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,@(map (cut string-append "--listen=" <>) listen)
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,@(if port
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`(,(string-append
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"--port=" (number->string port)))
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'())
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,@extra-options
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,@whitelist)))
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(list (shepherd-service
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(documentation "Run the git-daemon.")
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(requirement '(networking))
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(provision '(git-daemon))
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(start #~(make-forkexec-constructor '#$command
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#:user "git-daemon"
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#:group "git-daemon"))
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(stop #~(make-kill-destructor))))))))
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(define %git-daemon-accounts
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;; User account and group for git-daemon.
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(list (user-group
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(name "git-daemon")
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(system? #t))
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(user-account
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(name "git-daemon")
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(system? #t)
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(group "git-daemon")
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(comment "Git daemon user")
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(home-directory "/var/empty")
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(shell (file-append shadow "/sbin/nologin")))))
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(define (git-daemon-activation config)
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"Return the activation gexp for git-daemon using CONFIG."
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(let ((base-path (git-daemon-configuration-base-path config)))
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#~(begin
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(use-modules (guix build utils))
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;; Create the 'base-path' directory when it's not '#f'.
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(and=> #$base-path mkdir-p))))
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(define git-daemon-service-type
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(service-type
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(name 'git-daemon)
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(extensions
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(list (service-extension shepherd-root-service-type
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git-daemon-shepherd-service)
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(service-extension account-service-type
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(const %git-daemon-accounts))
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(service-extension activation-service-type
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git-daemon-activation)))
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(description
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"Expose Git respositories over the insecure @code{git://} TCP-based
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protocol.")
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(default-value (git-daemon-configuration))))
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(define* (git-daemon-service #:key (config (git-daemon-configuration)))
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"Return a service that runs @command{git daemon}, a simple TCP server to
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expose repositories over the Git protocol for annoymous access.
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The optional @var{config} argument should be a
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@code{<git-daemon-configuration>} object, by default it allows read-only
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access to exported repositories under @file{/srv/git}."
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(service git-daemon-service-type config))
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;;;
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;;; Cgit
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;;;
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(define-record-type* <cgit-configuration-file>
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cgit-configuration-file
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make-cgit-configuration-file
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cgit-configuration-file?
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(css cgit-configuration-file-css ; string
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(default "/share/cgit/cgit.css"))
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(logo cgit-configuration-file-logo ; string
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(default "/share/cgit/cgit.png"))
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(robots cgit-configuration-file-robots ; list
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(default '("noindex" "nofollow")))
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(virtual-root cgit-configuration-file-virtual-root ; string
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(default "/"))
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(repository-directory cgit-configuration-file-repository-directory ; string
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(default "/srv/git")))
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(define (cgit-configuration-robots-string robots)
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(string-join robots ", "))
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(define-gexp-compiler (cgit-configuration-file-compiler
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(file <cgit-configuration-file>) system target)
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(match file
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(($ <cgit-configuration-file> css logo
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robots virtual-root repository-directory)
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(apply text-file* "cgitrc"
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(letrec-syntax ((option (syntax-rules ()
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((_ key value)
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(if value
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`(,key "=" ,value "\n")
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'()))))
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(key/value (syntax-rules ()
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((_ (key value) rest ...)
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(append (option key value)
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(key/value rest ...)))
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((_)
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'()))))
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(key/value ("css" css)
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("logo" logo)
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("robots" (cgit-configuration-robots-string robots))
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("virtual-root" virtual-root)
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("scan-path" repository-directory)))))))
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(define %cgit-configuration-nginx
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(list
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(nginx-server-configuration
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(root cgit)
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(locations
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(list
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(nginx-location-configuration
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(uri "@cgit")
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(body '("fastcgi_param SCRIPT_FILENAME $document_root/lib/cgit/cgit.cgi;"
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"fastcgi_param PATH_INFO $uri;"
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"fastcgi_param QUERY_STRING $args;"
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"fastcgi_param HTTP_HOST $server_name;"
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"fastcgi_pass 127.0.0.1:9000;")))))
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(try-files (list "$uri" "@cgit"))
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(listen '("80"))
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(ssl-certificate #f)
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(ssl-certificate-key #f))))
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(define-record-type* <cgit-configuration>
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cgit-configuration make-cgit-configuration
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cgit-configuration?
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(config-file cgit-configuration-config-file
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(default (cgit-configuration-file)))
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(package cgit-configuration-package
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(default cgit))
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(nginx cgit-configuration-nginx
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(default %cgit-configuration-nginx)))
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(define (cgit-activation config)
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;; Cgit compiled with default configuration path
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#~(begin
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(use-modules (guix build utils))
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(mkdir-p "/var/cache/cgit")
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(copy-file #$(cgit-configuration-config-file config) "/etc/cgitrc")))
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(define (cgit-configuration-nginx-config config)
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(cgit-configuration-nginx config))
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(define cgit-service-type
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(service-type
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(name 'cgit)
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(extensions
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(list (service-extension activation-service-type
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cgit-activation)
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(service-extension nginx-service-type
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cgit-configuration-nginx-config)
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;; Make sure fcgiwrap is instantiated.
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(service-extension fcgiwrap-service-type
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(const #t))))
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(default-value (cgit-configuration))
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(description
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"Run the Cgit web interface, which allows users to browse Git
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repositories.")))
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;;;
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;;; HTTP access. Add the result of calling
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;;; git-http-nginx-location-configuration to an nginx-server-configuration's
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;;; "locations" field.
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;;;
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(define-record-type* <git-http-configuration>
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git-http-configuration
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make-git-http-configuration
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git-http-configuration?
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(package git-http-configuration-package ;package
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(default git))
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(git-root git-http-configuration-git-root ;string
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(default "/srv/git"))
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(export-all? git-http-configuration-export-all? ;boolean
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(default #f))
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(uri-path git-http-configuration-uri-path ;string
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(default "/git/"))
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(fcgiwrap-socket git-http-configuration-fcgiwrap-socket ;string
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(default "127.0.0.1:9000")))
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(define* (git-http-nginx-location-configuration #:optional
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(config
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(git-http-configuration)))
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(match config
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(($ <git-http-configuration> package git-root export-all?
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uri-path fcgiwrap-socket)
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(nginx-location-configuration
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(uri (string-append "~ /" (string-trim-both uri-path #\/) "(/.*)"))
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(body
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(list
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(list "fastcgi_pass " fcgiwrap-socket ";")
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(list "fastcgi_param SCRIPT_FILENAME "
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package "/libexec/git-core/git-http-backend"
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";")
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"fastcgi_param QUERY_STRING $query_string;"
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"fastcgi_param REQUEST_METHOD $request_method;"
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"fastcgi_param CONTENT_TYPE $content_type;"
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"fastcgi_param CONTENT_LENGTH $content_length;"
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(if export-all?
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"fastcgi_param GIT_HTTP_EXPORT_ALL \"\";"
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"")
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(list "fastcgi_param GIT_PROJECT_ROOT " git-root ";")
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"fastcgi_param PATH_INFO $1;"))))))
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