diff options
Diffstat (limited to 'cmd2.py')
| -rwxr-xr-x | cmd2.py | 47 |
1 files changed, 35 insertions, 12 deletions
@@ -76,6 +76,9 @@ __version__ = '0.7.0' # Pyparsing enablePackrat() can greatly speed up parsing, but problems have been seen in Python 3 in the past pyparsing.ParserElement.enablePackrat() +# TODO: Devise a way to make these next 3 parameters settable upon instantiating a cmd2.Cmd instance. +# They all strongly effect how parsing occurs for commands using the @options decorator. + # Use POSIX or Non-POSIX (Windows) rules for splititng a command-line string into a list of arguments via shlex.split() POSIX_SHLEX = False @@ -219,13 +222,13 @@ def options(option_list, arg_desc="arg"): # if hasattr(arg, 'parsed') and newArgList[0] == arg.parsed.command: # newArgList = newArgList[1:] if USE_ARG_LIST: - newArgs = newArgList + arg = newArgList else: newArgs = remaining_args(arg, newArgList) - if isinstance(arg, ParsedString): - arg = arg.with_args_replaced(newArgs) - else: - arg = newArgs + if isinstance(arg, ParsedString): + arg = arg.with_args_replaced(newArgs) + else: + arg = newArgs except optparse.OptParseError as e: print(e) optionParser.print_help() @@ -485,6 +488,8 @@ class Cmd(cmd.Cmd): locals_in_py = True kept_state = None redirector = '>' # for sending output to file + autorun_on_edit = True # Should files automatically run after editing (doesn't apply to commands) + settable = stubbornDict(''' prompt colors Colorized output (*nix only) @@ -498,6 +503,7 @@ class Cmd(cmd.Cmd): echo Echo command issued into output timing Report execution times abbrev Accept abbreviated commands + autorun_on_edit Automatically run files after editing ''') def poutput(self, msg): @@ -597,6 +603,7 @@ class Cmd(cmd.Cmd): self.keywords = self.reserved_words + [fname[3:] for fname in dir(self) if fname.startswith('do_')] self._init_parser() + self._temp_filename = None def do_shortcuts(self, args): """Lists single-key shortcuts available.""" @@ -950,8 +957,9 @@ class Cmd(cmd.Cmd): self.kept_state = Statekeeper(self, ('stdout',)) self.kept_sys = Statekeeper(sys, ('stdout',)) sys.stdout = self.stdout - # Redirect stdout to a fake file object which is an in-memory text stream - self.stdout = StringIO() + # Redirect stdout to a temporary file + _, self._temp_filename = tempfile.mkstemp() + self.stdout = open(self._temp_filename, 'w') elif statement.parsed.output: if (not statement.parsed.outputTo) and (not can_clip): raise EnvironmentError('Cannot redirect to paste buffer; install ``xclip`` and re-run to enable') @@ -974,9 +982,6 @@ class Cmd(cmd.Cmd): if not statement.parsed.outputTo: self.stdout.seek(0) write_to_paste_buffer(self.stdout.read()) - elif statement.parsed.pipeTo: - # Retreive the output from our internal command - command_output = self.stdout.getvalue() finally: self.stdout.close() self.kept_state.restore() @@ -985,12 +990,14 @@ class Cmd(cmd.Cmd): if statement.parsed.pipeTo: # Pipe output from the command to the shell command via echo - command_line = r'echo "{}" | {}'.format(command_output.rstrip(), statement.parsed.pipeTo) + command_line = r'cat {} | {}'.format(self._temp_filename, statement.parsed.pipeTo) result = subprocess.check_output(command_line, shell=True) if six.PY3: self.stdout.write(result.decode()) else: self.stdout.write(result) + os.remove(self._temp_filename) + self._temp_filename = None def onecmd(self, line): """Interpret the argument as though it had been typed in response @@ -1131,6 +1138,13 @@ class Cmd(cmd.Cmd): @options([make_option('-l', '--long', action="store_true", help="describe function of parameter")]) def do_show(self, arg, opts): '''Shows value of a parameter.''' + # If arguments are being passed as a list instead of as a string + if USE_ARG_LIST: + if arg and len(arg) > 0: + arg = arg[0] + else: + arg = '' + param = arg.strip().lower() result = {} maxlen = 0 @@ -1245,6 +1259,13 @@ class Cmd(cmd.Cmd): | arg is string: string search | arg is /enclosed in forward-slashes/: regular expression search """ + # If arguments are being passed as a list instead of as a string + if USE_ARG_LIST: + if arg and len(arg) > 0: + arg = arg[0] + else: + arg = '' + if arg: history = self.history.get(arg) else: @@ -1306,7 +1327,9 @@ class Cmd(cmd.Cmd): f.close() os.system('%s %s' % (self.editor, filename)) - self.do_load(filename) + + if self.autorun_on_edit or buffer: + self.do_load(filename) saveparser = (pyparsing.Optional(pyparsing.Word(pyparsing.nums) ^ '*')("idx") + pyparsing.Optional(pyparsing.Word(legalChars + '/\\'))("fname") + |