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authorCarlo Zancanaro <carlo@zancanaro.id.au>2017-02-19 10:32:58 +1100
committerLudovic Courtès <ludo@gnu.org>2017-03-10 14:48:05 +0100
commit82ccc499f7262982beb2da9827d5706967a334f0 (patch)
tree10c86f5b4f39e03e0b6ac23f82b3d3a24b0ef5d6 /gnu/services/mail.scm
parent79f09fa2394c5de06668406222a655eac39c36f6 (diff)
downloadguix-82ccc499f7262982beb2da9827d5706967a334f0.tar
guix-82ccc499f7262982beb2da9827d5706967a334f0.tar.gz
services: Add exim-service-type.
* gnu/services/mail.scm (<exim-configuration>): New record type. (exim-computed-config-file, exim-shepherd-service, exim-activation, exim-etc, exim-profile): New procedures. (exim-service-type, %exim-accounts): New variables. * doc/guix.text (Mail Services): Document it. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'gnu/services/mail.scm')
-rw-r--r--gnu/services/mail.scm102
1 files changed, 101 insertions, 1 deletions
diff --git a/gnu/services/mail.scm b/gnu/services/mail.scm
index 30b1672d33..b211ab61a5 100644
--- a/gnu/services/mail.scm
+++ b/gnu/services/mail.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
+;;; Copyright © 2017 Carlo Zancanaro <carlo@zancanaro.id.au>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -33,6 +34,7 @@
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (ice-9 match)
+ #:use-module (ice-9 format)
#:export (dovecot-service
dovecot-service-type
dovecot-configuration
@@ -53,7 +55,12 @@
opensmtpd-configuration
opensmtpd-configuration?
opensmtpd-service-type
- %default-opensmtpd-config-file))
+ %default-opensmtpd-config-file
+
+ exim-configuration
+ exim-configuration?
+ exim-service-type
+ %default-exim-config-file))
;;; Commentary:
;;;
@@ -1620,3 +1627,96 @@ accept from local for any relay
(compose list opensmtpd-configuration-package))
(service-extension shepherd-root-service-type
opensmtpd-shepherd-service)))))
+
+
+;;;
+;;; Exim.
+;;;
+
+(define-record-type* <exim-configuration> exim-configuration
+ make-exim-configuration
+ exim-configuration?
+ (package exim-configuration-package ;<package>
+ (default exim))
+ (config-file exim-configuration-config-file ;file-like
+ (default #f))
+ (aliases exim-configuration-aliases ;; list of lists
+ (default '())))
+
+(define %exim-accounts
+ (list (user-group
+ (name "exim")
+ (system? #t))
+ (user-account
+ (name "exim")
+ (group "exim")
+ (system? #t)
+ (comment "Exim Daemon")
+ (home-directory "/var/empty")
+ (shell (file-append shadow "/sbin/nologin")))))
+
+(define (exim-computed-config-file package config-file)
+ (computed-file "exim.conf"
+ #~(call-with-output-file #$output
+ (lambda (port)
+ (format port "
+exim_user = exim
+exim_group = exim
+.include ~a"
+ #$(or config-file
+ (file-append package "/etc/exim.conf")))))))
+
+(define exim-shepherd-service
+ (match-lambda
+ (($ <exim-configuration> package config-file aliases)
+ (list (shepherd-service
+ (provision '(exim mta))
+ (documentation "Run the exim daemon.")
+ (requirement '(networking))
+ (start #~(make-forkexec-constructor
+ '(#$(file-append package "/bin/exim")
+ "-bd" "-v" "-C"
+ #$(exim-computed-config-file package config-file))))
+ (stop #~(make-kill-destructor)))))))
+
+(define exim-activation
+ (match-lambda
+ (($ <exim-configuration> package config-file aliases)
+ (with-imported-modules '((guix build utils))
+ #~(begin
+ (use-modules (guix build utils))
+
+ (let ((uid (passwd:uid (getpw "exim")))
+ (gid (group:gid (getgr "exim"))))
+ (mkdir-p "/var/spool/exim")
+ (chown "/var/spool/exim" uid gid))
+
+ (zero? (system* #$(file-append package "/bin/exim")
+ "-bV" "-C" #$(exim-computed-config-file package config-file))))))))
+
+(define exim-etc
+ (match-lambda
+ (($ <exim-configuration> package config-file aliases)
+ `(("aliases" ,(plain-file "aliases"
+ ;; Ideally we'd use a format string like
+ ;; "~:{~a: ~{~a~^,~}\n~}", but it gives a
+ ;; warning that I can't figure out how to fix,
+ ;; so we'll just use string-join below instead.
+ (format #f "~:{~a: ~a\n~}"
+ (map (lambda (entry)
+ (list (car entry)
+ (string-join (cdr entry) ",")))
+ aliases))))))))
+
+(define exim-profile
+ (compose list exim-configuration-package))
+
+(define exim-service-type
+ (service-type
+ (name 'exim)
+ (extensions
+ (list (service-extension shepherd-root-service-type exim-shepherd-service)
+ (service-extension account-service-type (const %exim-accounts))
+ (service-extension activation-service-type exim-activation)
+ (service-extension profile-service-type exim-profile)
+ (service-extension etc-service-type exim-etc)))))