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06/12: installer: Recommended services are pre-selected.


From: guix-commits
Subject: 06/12: installer: Recommended services are pre-selected.
Date: Sun, 28 Apr 2019 16:57:16 -0400 (EDT)

civodul pushed a commit to branch master
in repository guix.

commit 1d9fcdacf90764cf168ecaad5f139e7d21a4d7c6
Author: Ludovic Court├Ęs <address@hidden>
Date:   Sun Apr 28 21:45:16 2019 +0200

    installer: Recommended services are pre-selected.
    
    * gnu/installer/services.scm (<system-service>)[recommended?]: New
    field.
    * gnu/installer/newt/services.scm (run-desktop-environments-cbt-page):
    Pass #:selection to 'run-checkbox-tree-page', computed from the
    'recommended?' field of each service.
    (run-networking-cbt-page): Likewise.
---
 gnu/installer/newt/services.scm | 52 ++++++++++++++++++++++-------------------
 gnu/installer/services.scm      |  4 ++++
 2 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/gnu/installer/newt/services.scm b/gnu/installer/newt/services.scm
index 2a22179..4f32d90 100644
--- a/gnu/installer/newt/services.scm
+++ b/gnu/installer/newt/services.scm
@@ -31,36 +31,40 @@
 (define (run-desktop-environments-cbt-page)
   "Run a page allowing the user to choose between various desktop
 environments."
-  (run-checkbox-tree-page
-   #:info-text (G_ "Please select the desktop(s) environment(s) you wish to \
+  (let ((items (filter desktop-system-service? %system-services)))
+    (run-checkbox-tree-page
+     #:info-text (G_ "Please select the desktop(s) environment(s) you wish to \
 install. If you select multiple desktops environments, you will be able to \
 choose the one to use on the log-in screen.")
-   #:title (G_ "Desktop environment")
-   #:items (filter desktop-system-service? %system-services)
-   #:item->text system-service-name               ;no i18n for DE names
-   #:checkbox-tree-height 5
-   #:exit-button-callback-procedure
-   (lambda ()
-     (raise
-      (condition
-       (&installer-step-abort))))))
+     #:title (G_ "Desktop environment")
+     #:items items
+     #:selection (map system-service-recommended? items)
+     #:item->text system-service-name             ;no i18n for DE names
+     #:checkbox-tree-height 8
+     #:exit-button-callback-procedure
+     (lambda ()
+       (raise
+        (condition
+         (&installer-step-abort)))))))
 
 (define (run-networking-cbt-page)
   "Run a page allowing the user to select networking services."
-  (run-checkbox-tree-page
-   #:info-text (G_ "You can now select networking services to run on your \
+  (let ((items (filter (lambda (service)
+                         (eq? 'networking (system-service-type service)))
+                       %system-services)))
+    (run-checkbox-tree-page
+     #:info-text (G_ "You can now select networking services to run on your \
 system.")
-   #:title (G_ "Network service")
-   #:items (filter (lambda (service)
-                     (eq? 'networking (system-service-type service)))
-                   %system-services)
-   #:item->text (compose G_ system-service-name)
-   #:checkbox-tree-height 5
-   #:exit-button-callback-procedure
-   (lambda ()
-     (raise
-      (condition
-       (&installer-step-abort))))))
+     #:title (G_ "Network service")
+     #:items items
+     #:selection (map system-service-recommended? items)
+     #:item->text (compose G_ system-service-name)
+     #:checkbox-tree-height 5
+     #:exit-button-callback-procedure
+     (lambda ()
+       (raise
+        (condition
+         (&installer-step-abort)))))))
 
 (define (run-network-management-page)
   "Run a page to select among several network management methods."
diff --git a/gnu/installer/services.scm b/gnu/installer/services.scm
index 6d9d65e..0b46006 100644
--- a/gnu/installer/services.scm
+++ b/gnu/installer/services.scm
@@ -23,7 +23,9 @@
   #:export (system-service?
             system-service-name
             system-service-type
+            system-service-recommended?
             system-service-snippet
+            system-service-packages
 
             desktop-system-service?
             networking-system-service?
@@ -36,6 +38,8 @@
   system-service?
   (name            system-service-name)           ;string
   (type            system-service-type)           ;'desktop | 'networking
+  (recommended?    system-service-recommended?    ;Boolean
+                   (default #f))
   (snippet         system-service-snippet         ;list of sexps
                    (default '()))
   (packages        system-service-packages        ;list of sexps



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