gitk: Fallback to selecting the head commit upon load

Try selecting the head, if the previously selected commit
is not available in the new view.

Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/gitk b/gitk
index 5021437d6548ed7599580ade4ef47b0f3fe6403a..d093a39506798c750cc838f0085f6721e0f733a9 100755 (executable)
--- a/gitk
+++ b/gitk
@@ -1506,8 +1506,15 @@ proc chewcommits {} {
        global numcommits startmsecs
 
        if {[info exists pending_select]} {
        global numcommits startmsecs
 
        if {[info exists pending_select]} {

-           set row [first_real_row]
-           selectline $row 1
+           update
+           reset_pending_select {}
+
+           if {[commitinview $pending_select $curview]} {
+               selectline [rowofcommit $pending_select] 1
+           } else {
+               set row [first_real_row]
+               selectline $row 1
+           }

        }
        if {$commitidx($curview) > 0} {
            #set ms [expr {[clock clicks -milliseconds] - $startmsecs}]
        }
        if {$commitidx($curview) > 0} {
            #set ms [expr {[clock clicks -milliseconds] - $startmsecs}]


@@ -3372,14 +3379,18 @@ proc showview {n} {
     drawvisible
     if {$row ne {}} {
        selectline $row 0
     drawvisible
     if {$row ne {}} {
        selectline $row 0

-    } elseif {$mainheadid ne {} && [commitinview $mainheadid $curview]} {
-       selectline [rowofcommit $mainheadid] 1

     } elseif {!$viewcomplete($n)} {
        reset_pending_select $selid
     } else {
     } elseif {!$viewcomplete($n)} {
        reset_pending_select $selid
     } else {

-       set row [first_real_row]
-       if {$row < $numcommits} {
-           selectline $row 0
+       reset_pending_select {}
+
+       if {[commitinview $pending_select $curview]} {
+           selectline [rowofcommit $pending_select] 1
+       } else {
+           set row [first_real_row]
+           if {$row < $numcommits} {
+               selectline $row 0
+           }

        }
     }
     if {!$viewcomplete($n)} {
        }
     }
     if {!$viewcomplete($n)} {