salt/tests/console.py
2012-11-12 21:08:04 -07:00

101 lines
2.8 KiB
Python

# -*- coding: utf-8 -*-
# vim: sw=4 ts=4 fenc=utf-8
'''
getTerminalSize()
- get width and height of console
- works on linux,os x,windows,cygwin(windows)
- taken from http://stackoverflow.com/questions/566746/how-to-get-console-window-width-in-python
'''
# Import python libs
import os
import platform
import struct
import ctypes
import subprocess
import fcntl
import termios
__all__ = ['getTerminalSize']
def getTerminalSize():
current_os = platform.system()
tuple_xy=None
if current_os == 'Windows':
tuple_xy = _getTerminalSize_windows()
if tuple_xy is None:
tuple_xy = _getTerminalSize_tput()
# needed for window's python in cygwin's xterm!
if current_os == 'Linux' or current_os == 'Darwin' or current_os.startswith('CYGWIN'):
tuple_xy = _getTerminalSize_linux()
if tuple_xy is None:
print 'default'
tuple_xy = (80, 25) # default value
return tuple_xy
def _getTerminalSize_windows():
res=None
try:
# stdin handle is -10
# stdout handle is -11
# stderr handle is -12
h = ctypes.windll.kernel32.GetStdHandle(-12)
csbi = ctypes.create_string_buffer(22)
res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
except Exception:
return None
if res:
(bufx, bufy, curx, cury, wattr,
left, top, right, bottom, maxx, maxy) = struct.unpack('hhhhHhhhhhh', csbi.raw)
sizex = right - left + 1
sizey = bottom - top + 1
return sizex, sizey
else:
return None
def _getTerminalSize_tput():
# get terminal width
# src: http://stackoverflow.com/questions/263890/how-do-i-find-the-width-height-of-a-terminal-window
try:
proc=subprocess.Popen(['tput', 'cols'],stdin=subprocess.PIPE,stdout=subprocess.PIPE)
output=proc.communicate(input=None)
cols=int(output[0])
proc=subprocess.Popen(['tput', 'lines'],stdin=subprocess.PIPE,stdout=subprocess.PIPE)
output=proc.communicate(input=None)
rows=int(output[0])
return (cols,rows)
except Exception:
return None
def _getTerminalSize_linux():
def ioctl_GWINSZ(fd):
try:
cr = struct.unpack('hh', fcntl.ioctl(fd, termios.TIOCGWINSZ,'1234'))
except Exception:
return None
return cr
cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
if not cr:
try:
fd = os.open(os.ctermid(), os.O_RDONLY)
cr = ioctl_GWINSZ(fd)
os.close(fd)
except Exception:
pass
if not cr:
try:
cr = (os.environ['LINES'], os.environ['COLUMNS'])
except Exception:
return None
return int(cr[1]), int(cr[0])
if __name__ == '__main__':
sizex,sizey=getTerminalSize()
print 'width =',sizex,'height =',sizey