from __future__ import absolute_import
import sys
import code
import logging
from optparse import Option
import curtsies
import curtsies.window
import curtsies.terminal
import curtsies.events
Window = curtsies.window.Window
Terminal = curtsies.terminal.Terminal
from bpython.curtsiesfrontend.repl import Repl
from bpython.curtsiesfrontend.coderunner import SystemExitFromCodeGreenlet
from bpython import args as bpargs
from bpython.translations import _
from bpython.importcompletion import find_iterator
def main(args=None, locals_=None, banner=None):
config, options, exec_args = bpargs.parse(args, (
'scroll options', None, [
Option('--log', '-L', action='store_true',
help=_("log debug messages to bpython.log")),
Option('--type', '-t', action='store_true',
help=_("enter lines of file as though interactively typed")),
]))
if options.log:
handler = logging.FileHandler(filename='bpython.log')
logging.getLogger('curtsies').setLevel(logging.DEBUG)
logging.getLogger('curtsies').addHandler(handler)
logging.getLogger('curtsies').propagate = False
logging.getLogger('bpython').setLevel(logging.DEBUG)
logging.getLogger('bpython').addHandler(handler)
logging.getLogger('bpython').propagate = False
else:
logging.getLogger('bpython').setLevel(logging.WARNING)
interp = None
paste = None
if exec_args:
assert options, "don't pass in exec_args without options"
exit_value = 0
if options.type:
paste = curtsies.events.PasteEvent()
sourcecode = open(exec_args[0]).read()
paste.events.extend(sourcecode)
else:
try:
interp = code.InteractiveInterpreter(locals=locals_)
bpargs.exec_code(interp, exec_args)
except SystemExit, e:
exit_value = e.args
if not options.interactive:
raise SystemExit(exit_value)
else:
sys.path.insert(0, '') # expected for interactive sessions (vanilla python does it)
mainloop(config, locals_, banner, interp, paste)
def mainloop(config, locals_, banner, interp=None, paste=None):
with Terminal(paste_mode=True) as tc:
with Window(tc, keep_last_line=True, hide_cursor=False) as term:
with Repl(config=config,
locals_=locals_,
request_refresh=tc.stuff_a_refresh_request,
banner=banner,
interp=interp) as repl:
rows, columns = tc.get_screen_size()
repl.width = columns
repl.height = rows
def process_event(e):
try:
repl.process_event(e)
except (SystemExitFromCodeGreenlet, SystemExit) as err:
array, cursor_pos = repl.paint(about_to_exit=True, user_quit=isinstance(err, SystemExitFromCodeGreenlet))
scrolled = term.render_to_terminal(array, cursor_pos)
repl.scroll_offset += scrolled
raise
else:
array, cursor_pos = repl.paint()
scrolled = term.render_to_terminal(array, cursor_pos)
repl.scroll_offset += scrolled
if paste:
repl.process_event(term.get_annotated_event()) #first event will always be a window size set
process_event(paste)
while True:
process_event(term.get_annotated_event(idle=find_iterator))
if __name__ == '__main__':
sys.exit(main())