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guix: qt-utils: Wrapped executables honor user's envvars.

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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.
This commit is contained in:
Hartmut Goebel 2020-08-19 10:44:27 +02:00
parent 9085260fcc
commit 4ecc2a2493
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GPG key ID: 634A8DFFD3F631DF
1 changed files with 6 additions and 5 deletions
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11
guix/build/qt-utils.scm
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@ -39,14 +39,15 @@ (define (collect-sub-dirs base-directories subdirectory)
(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)