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13/15: scripts: system: Add 'container' subcommand.


From: David Thompson
Subject: 13/15: scripts: system: Add 'container' subcommand.
Date: Thu, 02 Jul 2015 00:59:01 +0000

davexunit pushed a commit to branch wip-container
in repository guix.

commit 3e0b532a67099c8e69f0f92e71f16c77b96d99af
Author: David Thompson <address@hidden>
Date:   Mon Jun 8 09:04:38 2015 -0400

    scripts: system: Add 'container' subcommand.
    
    * guix/scripts/system.scm (show-help): Display 'container' subcommand.
      (system-derivation-for-action, guix-system): Add 'container' case.
      (perform-action): Skip GRUB config generation when building a container.
---
 guix/scripts/system.scm |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 6084ab8..6e36ae3 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -31,6 +31,7 @@
   #:use-module (gnu build install)
   #:use-module (gnu system)
   #:use-module (gnu system file-systems)
+  #:use-module (gnu system linux-container)
   #:use-module (gnu system vm)
   #:use-module (gnu system grub)
   #:use-module (gnu packages grub)
@@ -285,6 +286,8 @@ it atomically, and then run OS's activation script."
   (case action
     ((build init reconfigure)
      (operating-system-derivation os))
+    ((container)
+     (linux-container-script os #:mappings mappings))
     ((vm-image)
      (system-qemu-image os #:disk-image-size image-size))
     ((vm)
@@ -324,10 +327,12 @@ boot directly to the kernel or to the bootloader."
                                                 #:full-boot? full-boot?
                                                 #:mappings mappings))
        (grub      (package->derivation grub))
-       (grub.cfg  (operating-system-grub.cfg os
-                                             (if (eq? 'init action)
-                                                 '()
-                                                 (previous-grub-entries))))
+       (grub.cfg  (if (eq? 'container action)
+                      (return #f)
+                      (operating-system-grub.cfg os
+                                                 (if (eq? 'init action)
+                                                     '()
+                                                     
(previous-grub-entries)))))
        (drvs   -> (if (and grub? (memq action '(init reconfigure)))
                       (list sys grub grub.cfg)
                       (list sys)))
@@ -382,6 +387,8 @@ Build the operating system declared in FILE according to 
ACTION.\n"))
   (display (_ "\
    build            build the operating system without installing anything\n"))
   (display (_ "\
+  container         build a Linux container that shares the host's store\n"))
+  (display (_ "\
    vm               build a virtual machine image that shares the host's 
store\n"))
   (display (_ "\
    vm-image         build a freestanding virtual machine image\n"))
@@ -491,7 +498,7 @@ Build the operating system declared in FILE according to 
ACTION.\n"))
         (alist-cons 'argument arg result)
         (let ((action (string->symbol arg)))
           (case action
-            ((build vm vm-image disk-image reconfigure init)
+            ((build container vm vm-image disk-image reconfigure init)
              (alist-cons 'action action result))
             (else (leave (_ "~a: unknown action~%") action))))))
 
@@ -512,7 +519,7 @@ Build the operating system declared in FILE according to 
ACTION.\n"))
                action))
 
       (case action
-        ((build vm vm-image disk-image reconfigure)
+        ((build container vm vm-image disk-image reconfigure)
          (unless (= count 1)
            (fail)))
         ((init)



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