def replay(self, merge_envs=DEFAULT_MERGE_ENVS, target=None):
"""Replays the history specified, returns the history object where the code
was executed.
Parameters
----------
merge_env : tuple of str or Mappings, optional
Describes how to merge the environments, in order of increasing precednce.
Available strings are 'replay' and 'native'. The 'replay' env comes from the
history file that we are replaying. The 'native' env comes from what this
instance of xonsh was started up with. Instead of a string, a dict or other
mapping may be passed in as well. Defaults to ('replay', 'native').
target : str, optional
Path to new history file.
"""
shell = builtins.__xonsh_shell__
re_env = self._lj['env'].load()
new_env = self._merge_envs(merge_envs, re_env)
new_hist = History(env=new_env.detype(), locked=True, ts=[time.time(), None],
gc=False, filename=target)
with swap(builtins, '__xonsh_env__', new_env), \
swap(builtins, '__xonsh_history__', new_hist):
for cmd in self._lj['cmds']:
inp = cmd['inp']
shell.default(inp)
if builtins.__xonsh_exit__: # prevent premature exit
builtins.__xonsh_exit__ = False
new_hist.flush(at_exit=True)
return new_hist
def replay(self, merge_envs=DEFAULT_MERGE_ENVS, target=None):
"""Replays the history specified, returns the history object where the code
was executed.
Parameters
----------
merge_env : tuple of str or Mappings, optional
Describes how to merge the environments, in order of increasing precednce.
Available strings are 'replay' and 'native'. The 'replay' env comes from the
history file that we are replaying. The 'native' env comes from what this
instance of xonsh was started up with. Instead of a string, a dict or other
mapping may be passed in as well. Defaults to ('replay', 'native').
target : str, optional
Path to new history file.
"""
shell = builtins.__xonsh_shell__
re_env = self._lj['env'].load()
new_env = self._merge_envs(merge_envs, re_env)
new_hist = History(env=new_env.detype(),
locked=True,
ts=[time.time(), None],
gc=False,
filename=target)
with swap(builtins, '__xonsh_env__', new_env), \
swap(builtins, '__xonsh_history__', new_hist):
for cmd in self._lj['cmds']:
inp = cmd['inp']
shell.default(inp)
if builtins.__xonsh_exit__: # prevent premature exit
builtins.__xonsh_exit__ = False
new_hist.flush(at_exit=True)
return new_hist
def test_hist_flush():
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
yield assert_true, hf is None
hist.append({'joco': 'still alive'})
hf = hist.flush()
yield assert_true, hf is not None
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
yield assert_equal, 'still alive', obs
os.remove(FNAME)
def test_hist_flush():
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
yield assert_true, hf is None
hist.append({'joco': 'still alive'})
hf = hist.flush()
yield assert_true, hf is not None
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
yield assert_equal, 'still alive', obs
os.remove(FNAME)
def test_hist_flush():
"""Verify explicit flushing of the history works."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
yield assert_is_none, hf
hist.append({'joco': 'still alive'})
hf = hist.flush()
yield assert_is_not_none, hf
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
yield assert_equal, 'still alive', obs
os.remove(FNAME)
def test_hist_flush():
"""Verify explicit flushing of the history works."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
yield assert_is_none, hf
hist.append({'joco': 'still alive'})
hf = hist.flush()
yield assert_is_not_none, hf
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
yield assert_equal, 'still alive', obs
os.remove(FNAME)
def test_hist_flush(xonsh_builtins):
"""Verify explicit flushing of the history works."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
assert hf is None
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hist.append({'joco': 'still alive'})
hf = hist.flush()
assert hf is not None
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
assert 'still alive' == obs
os.remove(FNAME)
def test_hist_flush(xonsh_builtins):
"""Verify explicit flushing of the history works."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.flush'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
hf = hist.flush()
assert hf is None
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hist.append({'joco': 'still alive'})
hf = hist.flush()
assert hf is not None
while hf.is_alive():
pass
with LazyJSON(FNAME) as lj:
obs = lj['cmds'][0]['joco']
assert 'still alive' == obs
os.remove(FNAME)
def test_cmd_field():
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.cmdfield'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
# in-memory
hf = hist.append({'rtn': 1})
yield assert_true, hf is None
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
# slice
yield assert_equal, [1], hist.rtns[:]
# on disk
hf = hist.flush()
yield assert_true, hf is not None
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
os.remove(FNAME)
def test_cmd_field():
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.cmdfield'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
# in-memory
hf = hist.append({'rtn': 1})
yield assert_true, hf is None
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
# slice
yield assert_equal, [1], hist.rtns[:]
# on disk
hf = hist.flush()
yield assert_true, hf is not None
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
os.remove(FNAME)
def test_cmd_field(xonsh_builtins):
"""Test basic history behavior."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.cmdfield'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
# in-memory
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hf = hist.append({'rtn': 1})
assert hf is None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
# slice
assert [1] == hist.rtns[:]
# on disk
hf = hist.flush()
assert hf is not None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
os.remove(FNAME)
def test_cmd_field():
"""Test basic history behavior."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.cmdfield'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
# in-memory
with mock_xonsh_env({'HISTCONTROL': set()}):
hf = hist.append({'rtn': 1})
yield assert_is_none, hf
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
# slice
yield assert_equal, [1], hist.rtns[:]
# on disk
hf = hist.flush()
yield assert_is_not_none, hf
yield assert_equal, 1, hist.rtns[0]
yield assert_equal, 1, hist.rtns[-1]
yield assert_equal, None, hist.outs[-1]
os.remove(FNAME)
def test_cmd_field(xonsh_builtins):
"""Test basic history behavior."""
FNAME = 'xonsh-SESSIONID.json'
FNAME += '.cmdfield'
hist = History(filename=FNAME, here='yup', **HIST_TEST_KWARGS)
# in-memory
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hf = hist.append({'rtn': 1})
assert hf is None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
# slice
assert [1] == hist.rtns[:]
# on disk
hf = hist.flush()
assert hf is not None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
os.remove(FNAME)
