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git/git-gui--askpass
Alexander Gavrilov 8c76212529 git-gui: Add a simple implementation of SSH_ASKPASS.
OpenSSH allows specifying an external program to use
for direct user interaction. While most Linux systems
already have such programs, some environments, for
instance, msysgit, lack it. This patch adds a simple
fallback Tcl implementation of the tool.

In msysgit it is also necessary to set a fake value of
the DISPLAY variable, because otherwise ssh won't even
try to use SSH_ASKPASS handlers.

Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
Acked-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-11-01 16:01:34 -07:00

60 lines
1.3 KiB
Tcl
Executable File

#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
exec wish "$0" -- "$@"
# This is a trivial implementation of an SSH_ASKPASS handler.
# Git-gui uses this script if none are already configured.
set answer {}
set yesno 0
set rc 255
if {$argc < 1} {
set prompt "Enter your OpenSSH passphrase:"
} else {
set prompt [join $argv " "]
if {[regexp -nocase {\(yes\/no\)\?\s*$} $prompt]} {
set yesno 1
}
}
message .m -text $prompt -justify center -aspect 4000
pack .m -side top -fill x -padx 20 -pady 20 -expand 1
entry .e -textvariable answer -width 50
pack .e -side top -fill x -padx 10 -pady 10
if {!$yesno} {
.e configure -show "*"
}
frame .b
button .b.ok -text OK -command finish
button .b.cancel -text Cancel -command {destroy .}
pack .b.ok -side left -expand 1
pack .b.cancel -side right -expand 1
pack .b -side bottom -fill x -padx 10 -pady 10
bind . <Visibility> {focus -force .e}
bind . <Key-Return> finish
bind . <Key-Escape> {destroy .}
bind . <Destroy> {exit $rc}
proc finish {} {
if {$::yesno} {
if {$::answer ne "yes" && $::answer ne "no"} {
tk_messageBox -icon error -title "Error" -type ok \
-message "Only 'yes' or 'no' input allowed."
return
}
}
set ::rc 0
puts $::answer
destroy .
}
wm title . "OpenSSH"
tk::PlaceWindow .