def Run(self, cmd_val):
# type: (cmd_value__Argv) -> int
attrs, arg_r = flag_spec.ParseCmdVal('shopt', cmd_val)
arg = arg_types.shopt(attrs.attrs)
opt_names = arg_r.Rest()
if arg.p: # print values
if arg.o: # use set -o names
self.mutable_opts.ShowOptions(opt_names)
else:
self.mutable_opts.ShowShoptOptions(opt_names)
return 0
if arg.q: # query values
for name in opt_names:
index = match.MatchOption(name)
if index == 0:
return 2 # bash gives 1 for invalid option; 2 is better
if not self.mutable_opts.opt0_array[index]:
return 1 # at least one option is not true
return 0 # all options are true
if arg.s:
b = True
elif arg.u:
b = False
else:
# If no flags are passed, print the options. bash prints uses a
# different format for 'shopt', but we use the same format as 'shopt
# -p'.
self.mutable_opts.ShowShoptOptions(opt_names)
return 0
if cmd_val.block:
opt_nums = [] # type: List[int]
for name in opt_names:
index = match.MatchOption(name)
if index == 0:
# TODO: compute span_id
e_usage('got invalid option %r' % name)
opt_nums.append(index)
with state.ctx_Option(self.mutable_opts, opt_nums, b):
unused = self.cmd_ev.EvalBlock(cmd_val.block)
return 0 # cd also returns 0
# Otherwise, set options.
for name in opt_names:
#if arg.o:
# self.mutable_opts.SetOption(name, b)
#else:
# We allow set -o options here
self.mutable_opts.SetShoptOption(name, b)
return 0
def Run(self, cmd_val):
# type: (cmd_value__Argv) -> int
arg, i = SHOPT_SPEC.ParseCmdVal(cmd_val)
opt_names = cmd_val.argv[i:]
if arg.p: # print values
if arg.o: # use set -o names
self.exec_opts.ShowOptions(opt_names)
else:
self.exec_opts.ShowShoptOptions(opt_names)
return 0
if arg.q: # query values
for name in opt_names:
index = match.MatchOption(name)
if index == 0:
return 2 # bash gives 1 for invalid option; 2 is better
if not self.exec_opts.opt_array[index]:
return 1 # at least one option is not true
return 0 # all options are true
b = None
if arg.s:
b = True
elif arg.u:
b = False
if b is None: # Print options
# bash prints uses a different format for 'shopt', but we use the
# same format as 'shopt -p'.
self.exec_opts.ShowShoptOptions(opt_names)
return 0
# Otherwise, set options.
for name in opt_names:
if arg.o:
self.exec_opts.SetOption(name, b)
else:
self.exec_opts.SetShoptOption(name, b)
return 0
def Run(self, cmd_val):
# type: (cmd_value__Argv) -> int
attrs, arg_r = flag_spec.ParseCmdVal('shopt', cmd_val)
arg = arg_types.shopt(attrs.attrs)
opt_names = arg_r.Rest()
if arg.p: # print values
if arg.o: # use set -o names
self.exec_opts.ShowOptions(opt_names)
else:
self.exec_opts.ShowShoptOptions(opt_names)
return 0
if arg.q: # query values
for name in opt_names:
index = match.MatchOption(name)
if index == 0:
return 2 # bash gives 1 for invalid option; 2 is better
if not self.exec_opts.opt_array[index]:
return 1 # at least one option is not true
return 0 # all options are true
if arg.s:
b = True
elif arg.u:
b = False
else:
# bash prints uses a different format for 'shopt', but we use the
# same format as 'shopt -p'.
self.exec_opts.ShowShoptOptions(opt_names)
return 0
# Otherwise, set options.
for name in opt_names:
if arg.o:
self.exec_opts.SetOption(name, b)
else:
self.exec_opts.SetShoptOption(name, b)
return 0
def Eval(self, node):
# type: (bool_expr_t) -> bool
UP_node = node
with tagswitch(node) as case:
if case(bool_expr_e.WordTest):
node = cast(bool_expr__WordTest, UP_node)
s = self._EvalCompoundWord(node.w)
return bool(s)
elif case(bool_expr_e.LogicalNot):
node = cast(bool_expr__LogicalNot, UP_node)
b = self.Eval(node.child)
return not b
elif case(bool_expr_e.LogicalAnd):
node = cast(bool_expr__LogicalAnd, UP_node)
# Short-circuit evaluation
if self.Eval(node.left):
return self.Eval(node.right)
else:
return False
elif case(bool_expr_e.LogicalOr):
node = cast(bool_expr__LogicalOr, UP_node)
if self.Eval(node.left):
return True
else:
return self.Eval(node.right)
elif case(bool_expr_e.Unary):
node = cast(bool_expr__Unary, UP_node)
op_id = node.op_id
s = self._EvalCompoundWord(node.child)
# Now dispatch on arg type
arg_type = consts.BoolArgType(
op_id) # could be static in the LST?
if arg_type == bool_arg_type_e.Path:
return bool_stat.DoUnaryOp(op_id, s)
if arg_type == bool_arg_type_e.Str:
if op_id == Id.BoolUnary_z:
return not bool(s)
if op_id == Id.BoolUnary_n:
return bool(s)
raise AssertionError(op_id) # should never happen
if arg_type == bool_arg_type_e.Other:
if op_id == Id.BoolUnary_t:
try:
fd = int(s)
except ValueError:
# TODO: Need location information of [
e_die('Invalid file descriptor %r',
s,
word=node.child)
return bool_stat.isatty(fd, s, node.child)
# See whether 'set -o' options have been set
if op_id == Id.BoolUnary_o:
index = match.MatchOption(s)
if index == 0:
return False
else:
return self.exec_opts.opt_array[index]
e_die("%s isn't implemented",
ui.PrettyId(op_id)) # implicit location
raise AssertionError(arg_type) # should never happen
elif case(bool_expr_e.Binary):
node = cast(bool_expr__Binary, UP_node)
op_id = node.op_id
# Whether to glob escape
with switch(op_id) as case2:
if case2(Id.BoolBinary_GlobEqual, Id.BoolBinary_GlobDEqual,
Id.BoolBinary_GlobNEqual):
quote_kind = quote_e.FnMatch
elif case2(Id.BoolBinary_EqualTilde):
quote_kind = quote_e.ERE
else:
quote_kind = quote_e.Default
s1 = self._EvalCompoundWord(node.left)
s2 = self._EvalCompoundWord(node.right, quote_kind=quote_kind)
# Now dispatch on arg type
arg_type = consts.BoolArgType(op_id)
if arg_type == bool_arg_type_e.Path:
return bool_stat.DoBinaryOp(op_id, s1, s2)
if arg_type == bool_arg_type_e.Int:
# NOTE: We assume they are constants like [[ 3 -eq 3 ]].
# Bash also allows [[ 1+2 -eq 3 ]].
i1 = self._StringToIntegerOrError(s1, blame_word=node.left)
i2 = self._StringToIntegerOrError(s2,
blame_word=node.right)
if op_id == Id.BoolBinary_eq:
return i1 == i2
if op_id == Id.BoolBinary_ne:
return i1 != i2
if op_id == Id.BoolBinary_gt:
return i1 > i2
if op_id == Id.BoolBinary_ge:
return i1 >= i2
if op_id == Id.BoolBinary_lt:
return i1 < i2
if op_id == Id.BoolBinary_le:
return i1 <= i2
raise AssertionError(op_id) # should never happen
if arg_type == bool_arg_type_e.Str:
if op_id in (Id.BoolBinary_GlobEqual,
Id.BoolBinary_GlobDEqual):
#log('Matching %s against pattern %s', s1, s2)
return libc.fnmatch(s2, s1)
if op_id == Id.BoolBinary_GlobNEqual:
return not libc.fnmatch(s2, s1)
if op_id in (Id.BoolBinary_Equal, Id.BoolBinary_DEqual):
return s1 == s2
if op_id == Id.BoolBinary_NEqual:
return s1 != s2
if op_id == Id.BoolBinary_EqualTilde:
# TODO: This should go to --debug-file
#log('Matching %r against regex %r', s1, s2)
try:
matches = libc.regex_match(s2, s1)
except RuntimeError:
# Status 2 indicates a regex parse error. This is fatal in OSH but
# not in bash, which treats [[ like a command with an exit code.
e_die("Invalid regex %r",
s2,
word=node.right,
status=2)
if matches is None:
return False
self._SetRegexMatches(matches)
return True
if op_id == Id.Op_Less:
return s1 < s2
if op_id == Id.Op_Great:
return s1 > s2
raise AssertionError(op_id) # should never happen
raise AssertionError(node.tag_())
def __init__(self, opt0_array, opt_stacks, opt_name): # type: (List[bool], List[List[bool]], str) -> None self.opt0_array = opt0_array self.opt_stacks = opt_stacks self.num = match.MatchOption(opt_name) assert self.num != 0, opt_name
