git-gui: show command-line errors in a messagebox on Windows

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>

diff --git a/git-gui.sh b/git-gui.sh
index 422d4ff5bd9157d64dce272608203f91d6765854..ed0904d9935c0d143cb624a651e24667fffd457b 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -2863,7 +2863,8 @@ proc usage {} {
        set s "usage: $::argv0 $::subcommand $::subcommand_args"
        if {[tk windowingsystem] eq "win32"} {
                wm withdraw .
-               tk_messageBox -icon info -title "Usage" -message $s
+               tk_messageBox -icon info -message $s \
+                       -title [mc "Usage"]
        } else {
                puts stderr $s
        }
@@ -2936,7 +2937,11 @@ blame {
                        if {[catch {
                                        set head [git rev-parse --verify $head]
                                } err]} {
-                               puts stderr $err
+                               if {[tk windowingsystem] eq "win32"} {
+                                       tk_messageBox -icon error -title [mc Error] -message $err
+                               } else {
+                                       puts stderr $err
+                               }
                                exit 1
                        }
                }
@@ -2975,18 +2980,19 @@ blame {
 citool -
 gui {
        if {[llength $argv] != 0} {
-               puts -nonewline stderr "usage: $argv0"
-               if {$subcommand ne {gui}
-                       && [file tail $argv0] ne "git-$subcommand"} {
-                       puts -nonewline stderr " $subcommand"
-               }
-               puts stderr {}
-               exit 1
+               usage
        }
        # fall through to setup UI for commits
 }
 default {
-       puts stderr "usage: $argv0 \[{blame|browser|citool}\]"
+       set err "usage: $argv0 \[{blame|browser|citool}\]"
+       if {[tk windowingsystem] eq "win32"} {
+               wm withdraw .
+               tk_messageBox -icon error -message $err \
+                       -title [mc "Usage"]
+       } else {
+               puts stderr $err
+       }
        exit 1
 }
 }