Only jump to current line if it's not visible

plugin/vim-gdb.vim

@@ -14,15 +14,23 @@ function! Tapi_vimgdb_goto(bufnum, arglist)
     let filename = a:arglist[1]
     let line = a:arglist[2]
     let session = s:sessions[session_id]
-    " Go to source window and jump to current line
+    " Go to source window
     noautocmd call win_gotoid(session['source_winid'])
-    execute 'edit' fnameescape(filename)
-    execute 'normal!' line . 'G'
+    " Open file if needed
+    if filename != expand('%:p')
+        execute 'edit' fnameescape(filename)
+    endif
     " Update highlighted line
     if session['current_line_matchid'] != -1
         call matchdelete(session['current_line_matchid'])
     endif
     let session['current_line_matchid'] = matchaddpos('VimgdbCurrentLine', [line])
+    " Jump to current line if its not visible
+    let first_visible = line('w0')
+    let last_visible = line('w$')
+    if last_visible > first_visible && (line < first_visible || line > last_visible)
+        execute 'keepjumps normal!' line . 'G'
+    endif
     " Switch back to debugger window
     noautocmd call win_gotoid(bufwinid(a:bufnum))
 endfunction