Parse additional output for xterm size reporting (#843)

(cherry picked from commit ca98a02d4858114ac55ba841784e9ce3bc75fe9d)

1 files changed, 10 insertions, 2 deletions

diff --git a/library/pippy/console.py b/library/pippy/console.py
index 29ef2d5..c185ce9 100644
--- a/library/pippy/console.py
+++ b/library/pippy/console.py
@@ -26,8 +26,16 @@ def size():
     os.write(fd, '\x1B[18t')        # write the 'query screen size' command
     read_to_delimit('\x1b')         # parse response.
     read_to_delimit('[')
-    rows = int(read_to_delimit(';'))
-    cols = int(read_to_delimit('t'))
+    size = read_to_delimit('t')
+    # Output can be '8;rows;cols' or 'rows;cols' depending on vte version.
+    # (SL #843)
+    values = size.split(';')
+    if len(values) == 3:
+        rows = int(values[1])
+        cols = int(values[2])
+    else:
+        rows = int(values[0])
+        cols = int(values[1])
     termios.tcsetattr(fd, termios.TCSANOW, oldattr) # reset tty
     return cols, rows