git-gui: Make git-gui lib dir configurable at runime
Introduce the GIT_GUI_LIB_DIR environment variable, to tell git-gui
where to look for TCL libs. This allows a git-gui which has been
built with a prefix of /foo to be run out of directory /bar. This is
the equivalent of GIT_EXEC_PATH or GITPERLLIB but for git-gui's TCL
libraries.
Signed-off-by: David Turner <dturner@twitter.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
diff --git a/git-gui.sh b/git-gui.sh
index b186329..6cbb36e 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -49,7 +49,11 @@
##
## locate our library
-set oguilib {@@GITGUI_LIBDIR@@}
+if { [info exists ::env(GIT_GUI_LIB_DIR) ] } {
+ set oguilib $::env(GIT_GUI_LIB_DIR)
+} else {
+ set oguilib {@@GITGUI_LIBDIR@@}
+}
set oguirel {@@GITGUI_RELATIVE@@}
if {$oguirel eq {1}} {
set oguilib [file dirname [file normalize $argv0]]
