gitk: Handle external diff tool with spaces in the path

This fixes the launching of external diff to handle a diff tool
that has spaces in the path.  This ensures a correctly formed
tcl list is passed to the open command with a single pipe character
prefixing the list (as per the tcl manual page for open).

The specific fault observed was that selecting WinMerge as the diff
tool from the default installed location in Program Files failed to
be launched from the context menu.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Pat Thoyts 2009-04-15 16:54:19 +01:00 committed by Paul Mackerras
parent c876dbadc2
commit b575b2f1f4

5
gitk
View File

@ -3245,9 +3245,8 @@ proc external_diff {} {
set difftofile [external_diff_get_one_file $diffidto $flist_menu_file $diffdir]
if {$difffromfile ne {} && $difftofile ne {}} {
set cmd [concat | [shellsplit $extdifftool] \
[list $difffromfile $difftofile]]
if {[catch {set fl [open $cmd r]} err]} {
set cmd [list [shellsplit $extdifftool] $difffromfile $difftofile]
if {[catch {set fl [open |$cmd r]} err]} {
file delete -force $diffdir
error_popup "$extdifftool: [mc "command failed:"] $err"
} else {