GNU bug report logs - #45785
[PATCH 2/4] guix: qt-utils: Wrapped executables honor user's envvars.

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 45785 in the body.
You can then email your comments to 45785 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Hartmut Goebel <h.goebel <at> crazy-compilers.com>
To: 45193 <at> debbugs.gnu.org,
	guix-patches <at> gnu.org
Subject: [PATCH 2/4] guix: qt-utils: Wrapped executables honor user's envvars.
Date: Mon, 11 Jan 2021 15:41:42 +0100

Prior to this change, wrappers did set the specified environment variables to
a fixed value, overwriting any user settings. This inhibited propagating
e.g. XDG_DATA_DIRS from a profile to the application.

Now user environment variables are prefixed (if the variable defines some
"binary" search path, e.g. QT_PLUGIN_PATH) or suffixed (if the variable
defines some config or data search path, e.g. XDG_DATA_DIRS). The code could
also allow to overwrite, anyhow currently no variable is defined like this.

* guix/build/qt-utils.scm (variables-for-wrapping): For each env-var to
  be wrapped, specify whether it should prefix, suffix or overwrite the
  user's variable.
---
 guix/build/qt-utils.scm | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/guix/build/qt-utils.scm b/guix/build/qt-utils.scm
index 3fbdb6be61..030059522d 100644
--- a/guix/build/qt-utils.scm
+++ b/guix/build/qt-utils.scm
@@ -39,14 +39,15 @@
    (lambda (var-to-wrap) (not (null? (last var-to-wrap))))
    (map
     (lambda (var-spec)
-      `(,(first var-spec) = ,(collect-sub-dirs base-directories (last var-spec))))
+      (list (first var-spec) (second var-spec)
+            (collect-sub-dirs base-directories (third var-spec))))
     (list
      ;; these shall match the search-path-specification for Qt and KDE
      ;; libraries
-     '("XDG_DATA_DIRS" "/share")
-     '("XDG_CONFIG_DIRS" "/etc/xdg")
-     '("QT_PLUGIN_PATH" "/lib/qt5/plugins")
-     '("QML2_IMPORT_PATH" "/lib/qt5/qml")))))
+     '("XDG_DATA_DIRS" suffix "/share")
+     '("XDG_CONFIG_DIRS" suffix "/etc/xdg")
+     '("QT_PLUGIN_PATH" prefix "/lib/qt5/plugins")
+     '("QML2_IMPORT_PATH" prefix "/lib/qt5/qml")))))
 
 
 (define* (wrap-qt-program* program #:key inputs output-dir)
-- 
2.21.3

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.