274 lines
8.2 KiB
Python
274 lines
8.2 KiB
Python
# encoding: utf-8
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import os
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import re
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import shutil
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import subprocess
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import tempfile
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import textwrap
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import time
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from test.constant import (ARR_D, ARR_L, ARR_R, ARR_U, BS, ESC, PYTHON3,
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SEQUENCES)
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def wait_until_file_exists(file_path, times=None, interval=0.01):
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while times is None or times:
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if os.path.exists(file_path):
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return True
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time.sleep(interval)
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if times is not None:
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times -= 1
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return False
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def read_text_file(filename):
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"""Reads the contens of a text file."""
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if PYTHON3:
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return open(filename, 'r', encoding='utf-8').read()
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else:
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return open(filename, 'r').read()
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def is_process_running(pid):
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"""Returns true if a process with pid is running, false otherwise."""
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# from
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# http://stackoverflow.com/questions/568271/how-to-check-if-there-exists-a-process-with-a-given-pid
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try:
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os.kill(pid, 0)
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except OSError:
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return False
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else:
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return True
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def silent_call(cmd):
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"""Calls 'cmd' and returns the exit value."""
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return subprocess.call(cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
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def create_directory(dirname):
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"""Creates 'dirname' and its parents if it does not exist."""
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try:
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os.makedirs(dirname)
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except OSError:
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pass
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class TempFileManager(object):
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def __init__(self, name=''):
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self._temp_dir = tempfile.mkdtemp(prefix='UltiSnipsTest_' + name)
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def name_temp(self, file_path):
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return os.path.join(self._temp_dir, file_path)
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def write_temp(self, file_path, content):
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abs_path = self.name_temp(file_path)
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create_directory(os.path.dirname(abs_path))
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if PYTHON3:
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with open(abs_path, 'w', encoding='utf-8') as f:
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f.write(content)
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else:
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with open(abs_path, 'w') as f:
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f.write(content)
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return abs_path
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def unique_name_temp(self, suffix='', prefix=''):
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file_handler, abspath = tempfile.mkstemp(
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suffix, prefix, self._temp_dir)
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os.close(file_handler)
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os.remove(abspath)
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return abspath
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def clear_temp(self):
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shutil.rmtree(self._temp_dir)
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create_directory(self._temp_dir)
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class VimInterface(TempFileManager):
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def __init__(self, name=''):
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TempFileManager.__init__(self, name)
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def get_buffer_data(self):
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buffer_path = self.unique_name_temp(prefix='buffer_')
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self.send(ESC + ':w! %s\n' % buffer_path)
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if wait_until_file_exists(buffer_path, 50):
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return read_text_file(buffer_path)[:-1]
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def send(self, s):
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raise NotImplementedError()
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def launch(self, config=[]):
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pid_file = self.name_temp('vim.pid')
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done_file = self.name_temp('loading_done')
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if os.path.exists(done_file):
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os.remove(done_file)
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post_config = []
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post_config.append('%s << EOF' % ('py3' if PYTHON3 else 'py'))
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post_config.append('import vim')
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post_config.append(
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"with open('%s', 'w') as pid_file: pid_file.write(vim.eval('getpid()'))" %
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pid_file)
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post_config.append(
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"with open('%s', 'w') as done_file: pass" %
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done_file)
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post_config.append('EOF')
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config_path = self.write_temp('vim_config.vim',
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textwrap.dedent(os.linesep.join(config + post_config) + '\n'))
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# Note the space to exclude it from shell history.
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self.send(""" vim -u %s\r\n""" % config_path)
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wait_until_file_exists(done_file)
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self._vim_pid = int(open(pid_file, 'r').read())
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def leave_with_wait(self):
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self.send(3 * ESC + ':qa!\n')
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while is_process_running(self._vim_pid):
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time.sleep(.05)
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class VimInterfaceScreen(VimInterface):
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def __init__(self, session):
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VimInterface.__init__(self, 'Screen')
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self.session = session
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self.need_screen_escapes = 0
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self.detect_parsing()
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def send(self, s):
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if self.need_screen_escapes:
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# escape characters that are special to some versions of screen
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repl = lambda m: '\\' + m.group(0)
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s = re.sub(r"[$^#\\']", repl, s)
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if PYTHON3:
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s = s.encode('utf-8')
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while True:
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rv = 0
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if len(s) > 30:
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rv |= silent_call(
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['screen', '-x', self.session, '-X', 'register', 'S', s])
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rv |= silent_call(
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['screen', '-x', self.session, '-X', 'paste', 'S'])
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else:
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rv |= silent_call(
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['screen', '-x', self.session, '-X', 'stuff', s])
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if not rv:
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break
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time.sleep(.2)
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def detect_parsing(self):
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self.launch()
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# Send a string where the interpretation will depend on version of
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# screen
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string = '$TERM'
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self.send('i' + string + ESC)
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output = self.get_buffer_data()
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# If the output doesn't match the input, need to do additional escaping
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if output != string:
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self.need_screen_escapes = 1
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self.leave_with_wait()
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class VimInterfaceTmux(VimInterface):
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def __init__(self, session):
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VimInterface.__init__(self, 'Tmux')
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self.session = session
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self._check_version()
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def send(self, s):
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# I did not find any documentation on what needs escaping when sending
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# to tmux, but it seems like this is all that is needed for now.
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s = s.replace(';', r'\;')
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if PYTHON3:
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s = s.encode('utf-8')
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silent_call(['tmux', 'send-keys', '-t', self.session, '-l', s])
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def _check_version(self):
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stdout, _ = subprocess.Popen(['tmux', '-V'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
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if PYTHON3:
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stdout = stdout.decode('utf-8')
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m = re.match(r"tmux (\d+).(\d+)", stdout)
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if not m or not (int(m.group(1)), int(m.group(2))) >= (1, 8):
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raise RuntimeError(
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'Need at least tmux 1.8, you have %s.' %
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stdout.strip())
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class VimInterfaceWindows(VimInterface):
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BRACES = re.compile('([}{])')
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WIN_ESCAPES = ['+', '^', '%', '~', '[', ']', '<', '>', '(', ')']
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WIN_REPLACES = [
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(BS, '{BS}'),
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(ARR_L, '{LEFT}'),
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(ARR_R, '{RIGHT}'),
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(ARR_U, '{UP}'),
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(ARR_D, '{DOWN}'),
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('\t', '{TAB}'),
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('\n', '~'),
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(ESC, '{ESC}'),
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# On my system ` waits for a second keystroke, so `+SPACE = "`". On
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# most systems, `+Space = "` ". I work around this, by sending the host
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# ` as `+_+BS. Awkward, but the only way I found to get this working.
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('`', '`_{BS}'),
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('´', '´_{BS}'),
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('{^}', '{^}_{BS}'),
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]
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def __init__(self):
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self.seq_buf = []
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# import windows specific modules
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import win32com.client
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import win32gui
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self.win32gui = win32gui
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self.shell = win32com.client.Dispatch('WScript.Shell')
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def is_focused(self, title=None):
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cur_title = self.win32gui.GetWindowText(
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self.win32gui.GetForegroundWindow())
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if (title or '- GVIM') in cur_title:
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return True
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return False
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def focus(self, title=None):
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if not self.shell.AppActivate(title or '- GVIM'):
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raise Exception('Failed to switch to GVim window')
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time.sleep(1)
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def convert_keys(self, keys):
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keys = self.BRACES.sub(r"{\1}", keys)
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for k in self.WIN_ESCAPES:
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keys = keys.replace(k, '{%s}' % k)
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for f, r in self.WIN_REPLACES:
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keys = keys.replace(f, r)
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return keys
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def send(self, keys):
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self.seq_buf.append(keys)
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seq = ''.join(self.seq_buf)
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for f in SEQUENCES:
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if f.startswith(seq) and f != seq:
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return
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self.seq_buf = []
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seq = self.convert_keys(seq)
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if not self.is_focused():
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time.sleep(2)
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self.focus()
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if not self.is_focused():
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# This is the only way I can find to stop test execution
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raise KeyboardInterrupt('Failed to focus GVIM')
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self.shell.SendKeys(seq)
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