Merge git://repo.or.cz/git-gui

* git://repo.or.cz/git-gui:
  git-gui (Windows): Change wrapper to execdir 'libexec/git-core'
  git-gui (Windows): Switch to relative discovery of oguilib
  git-gui: Correct installation of library to be $prefix/share
  git-gui: Fix gitk search in $PATH to work on Windows
  git-gui: Preserve scroll position on reshow_diff.
  git-gui: Fix the Remote menu separator.

git-gui/Makefile

@@ -34,8 +34,12 @@ ifndef gitexecdir
 endif
 
 ifndef sharedir
+ifeq (git-core,$(notdir $(gitexecdir)))
+	sharedir := $(dir $(patsubst %/,%,$(dir $(gitexecdir))))share
+else
 	sharedir := $(dir $(gitexecdir))share
 endif
+endif
 
 ifndef INSTALL
 	INSTALL = install
@@ -156,6 +160,7 @@ endif
 ifneq (,$(findstring MINGW,$(uname_S)))
 	NO_MSGFMT=1
 	GITGUI_WINDOWS_WRAPPER := YesPlease
+	GITGUI_RELATIVE := 1
 endif
 
 ifdef GITGUI_MACOSXAPP

git-gui/git-gui.sh

@@ -317,7 +317,7 @@ proc _git_cmd {name} {
 	return $v
 }
 
-proc _which {what} {
+proc _which {what args} {
 	global env _search_exe _search_path
 
 	if {$_search_path eq {}} {
@@ -340,8 +340,14 @@ proc _which {what} {
 		}
 	}
 
+	if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
+		set suffix {}
+	} else {
+		set suffix $_search_exe
+	}
+
 	foreach p $_search_path {
-		set p [file join $p $what$_search_exe]
+		set p [file join $p $what$suffix]
 		if {[file exists $p]} {
 			return [file normalize $p]
 		}
@@ -1686,7 +1692,7 @@ proc do_gitk {revs} {
 	# -- Always start gitk through whatever we were loaded with.  This
 	#    lets us bypass using shell process on Windows systems.
 	#
-	set exe [_which gitk]
+	set exe [_which gitk -script]
 	set cmd [list [info nameofexecutable] $exe]
 	if {$exe eq {}} {
 		error_popup [mc "Couldn't find gitk in PATH"]
@@ -2925,6 +2931,7 @@ if {[is_enabled transport]} {
 	populate_fetch_menu
 	set n [expr {[.mbar.remote index end] - $n}]
 	if {$n > 0} {
+		if {[.mbar.remote type 0] eq "tearoff"} { incr n }
 		.mbar.remote insert $n separator
 	}
 	unset n

git-gui/lib/diff.tcl

@@ -19,6 +19,7 @@ proc clear_diff {} {
 proc reshow_diff {} {
 	global file_states file_lists
 	global current_diff_path current_diff_side
+	global ui_diff
 
 	set p $current_diff_path
 	if {$p eq {}} {
@@ -28,7 +29,8 @@ proc reshow_diff {} {
 		|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
 		clear_diff
 	} else {
-		show_diff $p $current_diff_side
+		set save_pos [lindex [$ui_diff yview] 0]
+		show_diff $p $current_diff_side {} $save_pos
 	}
 }
 
@@ -52,7 +54,7 @@ A rescan will be automatically started to find other files which may have the sa
 	rescan ui_ready 0
 }
 
-proc show_diff {path w {lno {}}} {
+proc show_diff {path w {lno {}} {scroll_pos {}}} {
 	global file_states file_lists
 	global is_3way_diff diff_active repo_config
 	global ui_diff ui_index ui_workdir
@@ -151,6 +153,10 @@ proc show_diff {path w {lno {}}} {
 		$ui_diff conf -state disabled
 		set diff_active 0
 		unlock_index
+		if {$scroll_pos ne {}} {
+			update
+			$ui_diff yview moveto $scroll_pos
+		}
 		ui_ready
 		return
 	}
@@ -190,10 +196,10 @@ proc show_diff {path w {lno {}}} {
 		-blocking 0 \
 		-encoding binary \
 		-translation binary
-	fileevent $fd readable [list read_diff $fd]
+	fileevent $fd readable [list read_diff $fd $scroll_pos]
 }
 
-proc read_diff {fd} {
+proc read_diff {fd scroll_pos} {
 	global ui_diff diff_active
 	global is_3way_diff current_diff_header
 
@@ -282,6 +288,10 @@ proc read_diff {fd} {
 		close $fd
 		set diff_active 0
 		unlock_index
+		if {$scroll_pos ne {}} {
+			update
+			$ui_diff yview moveto $scroll_pos
+		}
 		ui_ready
 
 		if {[$ui_diff index end] eq {2.0}} {

git-gui/windows/git-gui.sh

@@ -8,9 +8,12 @@ if { $argc >=2 && [lindex $argv 0] == "--working-dir" } {
 	incr argc -2
 }
 
-set gitguidir [file dirname [info script]]
-regsub -all ";" $gitguidir "\\;" gitguidir
-set env(PATH) "$gitguidir;$env(PATH)"
-unset gitguidir
+set bindir [file dirname \
+            [file dirname \
+             [file dirname [info script]]]]
+set bindir [file join $bindir bin]
+regsub -all ";" $bindir "\\;" bindir
+set env(PATH) "$bindir;$env(PATH)"
+unset bindir
 
 source [file join [file dirname [info script]] git-gui.tcl]