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104/155: services: cuirass: Cache defaults to /var/cache/cuirass.


From: John Darrington
Subject: 104/155: services: cuirass: Cache defaults to /var/cache/cuirass.
Date: Wed, 21 Dec 2016 20:48:37 +0000 (UTC)

jmd pushed a commit to branch wip-installer
in repository guix.

commit 460dfc5658ce180d6881d69dbacac60a40cbb62a
Author: Ludovic Courtès <address@hidden>
Date:   Mon Dec 19 23:29:09 2016 +0100

    services: cuirass: Cache defaults to /var/cache/cuirass.
    
    The previous default value depended on the 'HOME' environment variable,
    which happened to be unset.  Thus, /.cache was being used.
    
    * gnu/services/cuirass.scm (<cuirass-configuration>)[cache-directory]:
    Change default value to "/var/cache/cuirass".
    (cuirass-shepherd-service): Always pass "--cache-directory".
    (cuirass-activation): New procedure.
    (cuirass-service-type): Use it as an extension to
    ACTIVATION-SERVICE-TYPE.
    * doc/guix.texi (Continuous Integration): Adjust accordingly.
---
 doc/guix.texi            |    2 +-
 gnu/services/cuirass.scm |   23 +++++++++++++++++++----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/doc/guix.texi b/doc/guix.texi
index 46d006d..c218209 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -11993,7 +11993,7 @@ Data type representing the configuration of Cuirass.
 @item @code{log-file} (default: @code{"/var/log/cuirass.log"})
 Location of the log file.
 
address@hidden @code{cache-directory} (default: @code{""})
address@hidden @code{cache-directory} (default: @code{"/var/cache/cuirass"})
 Location of the repository cache.
 
 @item @code{user} (default: @code{"cuirass"})
diff --git a/gnu/services/cuirass.scm b/gnu/services/cuirass.scm
index c2fe9d9..d585e26 100644
--- a/gnu/services/cuirass.scm
+++ b/gnu/services/cuirass.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Mathieu Lirzin <address@hidden>
+;;; Copyright © 2016 Ludovic Courtès <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -45,7 +46,7 @@
   (log-file         cuirass-configuration-log-file ;string
                     (default "/var/log/cuirass.log"))
   (cache-directory  cuirass-configuration-cache-directory ;string (dir-name)
-                    (default ""))
+                    (default "/var/cache/cuirass"))
   (user             cuirass-configuration-user ;string
                     (default "cuirass"))
   (group            cuirass-configuration-group ;string
@@ -80,9 +81,7 @@
             (requirement '(guix-daemon))
             (start #~(make-forkexec-constructor
                       (list (string-append #$cuirass "/bin/cuirass")
-                            #$@(if (string=? "" cache-directory)
-                                   '()
-                                   (list "--cache-directory" cache-directory))
+                            "--cache-directory" #$cache-directory
                             #$@(if (null? specs)
                                    '()
                                    (let ((str (format #f "'~S" specs)))
@@ -112,11 +111,27 @@
            (home-directory (string-append "/var/run/" cuirass-user))
            (shell #~(string-append #$shadow "/sbin/nologin"))))))
 
+(define (cuirass-activation config)
+  "Return the activation code for CONFIG."
+  (let ((cache (cuirass-configuration-cache-directory config))
+        (user  (cuirass-configuration-user config))
+        (group (cuirass-configuration-group config)))
+    (with-imported-modules '((guix build utils))
+      #~(begin
+          (use-modules (guix build utils))
+
+          (mkdir-p #$cache)
+
+          (let ((uid (passwd:uid (getpw #$user)))
+                (gid (group:gid (getgr #$group))))
+            (chown #$cache uid gid))))))
+
 (define cuirass-service-type
   (service-type
    (name 'cuirass)
    (extensions
     (list
+     (service-extension activation-service-type cuirass-activation)
      (service-extension shepherd-root-service-type cuirass-shepherd-service)
      (service-extension account-service-type cuirass-account)))))
 



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