Mercurial > libervia-backend
view sat_frontends/jp/cmd_input.py @ 3987:9089cf6c9684
install: get `urwid-satext` directly from repos
author | Goffi <goffi@goffi.org> |
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date | Tue, 22 Nov 2022 12:03:36 +0100 |
parents | be6d91572633 |
children | 524856bd7b19 |
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#!/usr/bin/env python3 # jp: a SàT command line tool # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import subprocess import argparse import sys import shlex import asyncio from . import base from sat.core.i18n import _ from sat.core import exceptions from sat_frontends.jp.constants import Const as C from sat.tools.common.ansi import ANSI as A __commands__ = ["Input"] OPT_STDIN = "stdin" OPT_SHORT = "short" OPT_LONG = "long" OPT_POS = "positional" OPT_IGNORE = "ignore" OPT_TYPES = (OPT_STDIN, OPT_SHORT, OPT_LONG, OPT_POS, OPT_IGNORE) OPT_EMPTY_SKIP = "skip" OPT_EMPTY_IGNORE = "ignore" OPT_EMPTY_CHOICES = (OPT_EMPTY_SKIP, OPT_EMPTY_IGNORE) class InputCommon(base.CommandBase): def __init__(self, host, name, help): base.CommandBase.__init__( self, host, name, use_verbose=True, use_profile=False, help=help ) self.idx = 0 self.reset() def reset(self): self.args_idx = 0 self._stdin = [] self._opts = [] self._pos = [] self._values_ori = [] def add_parser_options(self): self.parser.add_argument( "--encoding", default="utf-8", help=_("encoding of the input data") ) self.parser.add_argument( "-i", "--stdin", action="append_const", const=(OPT_STDIN, None), dest="arguments", help=_("standard input"), ) self.parser.add_argument( "-s", "--short", type=self.opt(OPT_SHORT), action="append", dest="arguments", help=_("short option"), ) self.parser.add_argument( "-l", "--long", type=self.opt(OPT_LONG), action="append", dest="arguments", help=_("long option"), ) self.parser.add_argument( "-p", "--positional", type=self.opt(OPT_POS), action="append", dest="arguments", help=_("positional argument"), ) self.parser.add_argument( "-x", "--ignore", action="append_const", const=(OPT_IGNORE, None), dest="arguments", help=_("ignore value"), ) self.parser.add_argument( "-D", "--debug", action="store_true", help=_("don't actually run commands but echo what would be launched"), ) self.parser.add_argument( "--log", type=argparse.FileType("w"), help=_("log stdout to FILE") ) self.parser.add_argument( "--log-err", type=argparse.FileType("w"), help=_("log stderr to FILE") ) self.parser.add_argument("command", nargs=argparse.REMAINDER) def opt(self, type_): return lambda s: (type_, s) def addValue(self, value): """add a parsed value according to arguments sequence""" self._values_ori.append(value) arguments = self.args.arguments try: arg_type, arg_name = arguments[self.args_idx] except IndexError: self.disp( _("arguments in input data and in arguments sequence don't match"), error=True, ) self.host.quit(C.EXIT_DATA_ERROR) self.args_idx += 1 while self.args_idx < len(arguments): next_arg = arguments[self.args_idx] if next_arg[0] not in OPT_TYPES: # value will not be used if False or None, so we skip filter if value not in (False, None): # we have a filter filter_type, filter_arg = arguments[self.args_idx] value = self.filter(filter_type, filter_arg, value) else: break self.args_idx += 1 if value is None: # we ignore this argument return if value is False: # we skip the whole row if self.args.debug: self.disp( A.color( C.A_SUBHEADER, _("values: "), A.RESET, ", ".join(self._values_ori), ), 2, ) self.disp(A.color(A.BOLD, _("**SKIPPING**\n"))) self.reset() self.idx += 1 raise exceptions.CancelError if not isinstance(value, list): value = [value] for v in value: if arg_type == OPT_STDIN: self._stdin.append(v) elif arg_type == OPT_SHORT: self._opts.append("-{}".format(arg_name)) self._opts.append(v) elif arg_type == OPT_LONG: self._opts.append("--{}".format(arg_name)) self._opts.append(v) elif arg_type == OPT_POS: self._pos.append(v) elif arg_type == OPT_IGNORE: pass else: self.parser.error( _( "Invalid argument, an option type is expected, got {type_}:{name}" ).format(type_=arg_type, name=arg_name) ) async def runCommand(self): """run requested command with parsed arguments""" if self.args_idx != len(self.args.arguments): self.disp( _("arguments in input data and in arguments sequence don't match"), error=True, ) self.host.quit(C.EXIT_DATA_ERROR) end = '\n' if self.args.debug else ' ' self.disp( A.color(C.A_HEADER, _("command {idx}").format(idx=self.idx)), end = end, ) stdin = "".join(self._stdin) if self.args.debug: self.disp( A.color( C.A_SUBHEADER, _("values: "), A.RESET, ", ".join([shlex.quote(a) for a in self._values_ori]) ), 2, ) if stdin: self.disp(A.color(C.A_SUBHEADER, "--- STDIN ---")) self.disp(stdin) self.disp(A.color(C.A_SUBHEADER, "-------------")) self.disp( "{indent}{prog} {static} {options} {positionals}".format( indent=4 * " ", prog=sys.argv[0], static=" ".join(self.args.command), options=" ".join(shlex.quote(o) for o in self._opts), positionals=" ".join(shlex.quote(p) for p in self._pos), ) ) self.disp("\n") else: self.disp(" (" + ", ".join(self._values_ori) + ")", 2, end=' ') args = [sys.argv[0]] + self.args.command + self._opts + self._pos p = await asyncio.create_subprocess_exec( *args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, ) stdout, stderr = await p.communicate(stdin.encode('utf-8')) log = self.args.log log_err = self.args.log_err log_tpl = "{command}\n{buff}\n\n" if log: log.write(log_tpl.format( command=" ".join(shlex.quote(a) for a in args), buff=stdout.decode('utf-8', 'replace'))) if log_err: log_err.write(log_tpl.format( command=" ".join(shlex.quote(a) for a in args), buff=stderr.decode('utf-8', 'replace'))) ret = p.returncode if ret == 0: self.disp(A.color(C.A_SUCCESS, _("OK"))) else: self.disp(A.color(C.A_FAILURE, _("FAILED"))) self.reset() self.idx += 1 def filter(self, filter_type, filter_arg, value): """change input value @param filter_type(unicode): name of the filter @param filter_arg(unicode, None): argument of the filter @param value(unicode): value to filter @return (unicode, False, None): modified value False to skip the whole row None to ignore this argument (but continue row with other ones) """ raise NotImplementedError class Csv(InputCommon): def __init__(self, host): super(Csv, self).__init__(host, "csv", _("comma-separated values")) def add_parser_options(self): InputCommon.add_parser_options(self) self.parser.add_argument( "-r", "--row", type=int, default=0, help=_("starting row (previous ones will be ignored)"), ) self.parser.add_argument( "-S", "--split", action="append_const", const=("split", None), dest="arguments", help=_("split value in several options"), ) self.parser.add_argument( "-E", "--empty", action="append", type=self.opt("empty"), dest="arguments", help=_("action to do on empty value ({choices})").format( choices=", ".join(OPT_EMPTY_CHOICES) ), ) def filter(self, filter_type, filter_arg, value): if filter_type == "split": return value.split() elif filter_type == "empty": if filter_arg == OPT_EMPTY_IGNORE: return value if value else None elif filter_arg == OPT_EMPTY_SKIP: return value if value else False else: self.parser.error( _("--empty value must be one of {choices}").format( choices=", ".join(OPT_EMPTY_CHOICES) ) ) super(Csv, self).filter(filter_type, filter_arg, value) async def start(self): import csv if self.args.encoding: sys.stdin.reconfigure(encoding=self.args.encoding, errors="replace") reader = csv.reader(sys.stdin) for idx, row in enumerate(reader): try: if idx < self.args.row: continue for value in row: self.addValue(value) await self.runCommand() except exceptions.CancelError: # this row has been cancelled, we skip it continue self.host.quit() class Input(base.CommandBase): subcommands = (Csv,) def __init__(self, host): super(Input, self).__init__( host, "input", use_profile=False, help=_("launch command with external input"), )