Mercurial > libervia-backend

annotate sat_frontends/jp/cmd_input.py @ 3035:25af53e2990a

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install (setup.py): updated `python_requires`
author Goffi <goffi@goffi.org>
date Sun, 25 Aug 2019 09:53:03 +0200
parents ab2696e34d29
children fee60f17ebac
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # jp: a SàT command line tool
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 from . import base
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22 from sat.core.i18n import _
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23 from sat.core import exceptions
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24 from sat_frontends.jp.constants import Const as C
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25 from sat.tools.common.ansi import ANSI as A
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26 import subprocess
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27 import argparse
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28 import sys
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29
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30 __commands__ = ["Input"]
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31 OPT_STDIN = "stdin"
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32 OPT_SHORT = "short"
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33 OPT_LONG = "long"
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34 OPT_POS = "positional"
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35 OPT_IGNORE = "ignore"
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36 OPT_TYPES = (OPT_STDIN, OPT_SHORT, OPT_LONG, OPT_POS, OPT_IGNORE)
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37 OPT_EMPTY_SKIP = "skip"
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38 OPT_EMPTY_IGNORE = "ignore"
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39 OPT_EMPTY_CHOICES = (OPT_EMPTY_SKIP, OPT_EMPTY_IGNORE)
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41
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42 class InputCommon(base.CommandBase):
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43 def __init__(self, host, name, help):
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44 base.CommandBase.__init__(
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45 self, host, name, use_verbose=True, use_profile=False, help=help
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46 )
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47 self.idx = 0
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48 self.reset()
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49
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50 def reset(self):
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51 self.args_idx = 0
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52 self._stdin = []
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53 self._opts = []
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54 self._pos = []
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55 self._values_ori = []
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56
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57 def add_parser_options(self):
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58 self.parser.add_argument(
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59 "--encoding", default="utf-8", help=_("encoding of the input data")
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60 )
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61 self.parser.add_argument(
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62 "-i",
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63 "--stdin",
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64 action="append_const",
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65 const=(OPT_STDIN, None),
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66 dest="arguments",
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67 help=_("standard input"),
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68 )
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69 self.parser.add_argument(
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70 "-s",
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71 "--short",
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72 type=self.opt(OPT_SHORT),
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73 action="append",
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74 dest="arguments",
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75 help=_("short option"),
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76 )
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77 self.parser.add_argument(
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78 "-l",
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79 "--long",
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80 type=self.opt(OPT_LONG),
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81 action="append",
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82 dest="arguments",
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83 help=_("long option"),
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84 )
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85 self.parser.add_argument(
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86 "-p",
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87 "--positional",
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88 type=self.opt(OPT_POS),
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89 action="append",
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90 dest="arguments",
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91 help=_("positional argument"),
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92 )
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93 self.parser.add_argument(
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94 "-x",
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95 "--ignore",
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96 action="append_const",
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97 const=(OPT_IGNORE, None),
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98 dest="arguments",
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99 help=_("ignore value"),
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100 )
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101 self.parser.add_argument(
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102 "-D",
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103 "--debug",
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104 action="store_true",
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105 help=_("don't actually run commands but echo what would be launched"),
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106 )
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107 self.parser.add_argument(
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108 "--log", type=argparse.FileType("wb"), help=_("log stdout to FILE")
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109 )
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110 self.parser.add_argument(
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111 "--log-err", type=argparse.FileType("wb"), help=_("log stderr to FILE")
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112 )
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113 self.parser.add_argument("command", nargs=argparse.REMAINDER)
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114
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115 def opt(self, type_):
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116 return lambda s: (type_, s)
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117
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118 def addValue(self, value):
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119 """add a parsed value according to arguments sequence"""
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120 self._values_ori.append(value)
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121 arguments = self.args.arguments
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122 try:
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123 arg_type, arg_name = arguments[self.args_idx]
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124 except IndexError:
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125 self.disp(
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126 _("arguments in input data and in arguments sequence don't match"),
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127 error=True,
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128 )
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129 self.host.quit(C.EXIT_DATA_ERROR)
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130 self.args_idx += 1
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131 while self.args_idx < len(arguments):
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132 next_arg = arguments[self.args_idx]
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133 if next_arg[0] not in OPT_TYPES:
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134 # value will not be used if False or None, so we skip filter
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135 if value not in (False, None):
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136 # we have a filter
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137 filter_type, filter_arg = arguments[self.args_idx]
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138 value = self.filter(filter_type, filter_arg, value)
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139 else:
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140 break
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141 self.args_idx += 1
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142
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143 if value is None:
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144 # we ignore this argument
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145 return
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parents: 2278
diff changeset
146
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diff changeset
147 if value is False:
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diff changeset
148 # we skip the whole row
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diff changeset
149 if self.args.debug:
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150 self.disp(
56f94936df1e code style reformatting using black
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diff changeset
151 A.color(
56f94936df1e code style reformatting using black
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152 C.A_SUBHEADER,
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diff changeset
153 _("values: "),
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diff changeset
154 A.RESET,
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diff changeset
155 ", ".join(self._values_ori),
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diff changeset
156 ),
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parents: 2562
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157 2,
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diff changeset
158 )
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ab2696e34d29 Python 3 port:
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159 self.disp(A.color(A.BOLD, _("**SKIPPING**\n")))
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160 self.reset()
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diff changeset
161 self.idx += 1
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162 raise exceptions.CancelError
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163
2278
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164 if not isinstance(value, list):
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165 value = [value]
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166
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167 for v in value:
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168 if arg_type == OPT_STDIN:
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169 self._stdin.append(v.encode("utf-8"))
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170 elif arg_type == OPT_SHORT:
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171 self._opts.append("-{}".format(arg_name))
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172 self._opts.append(v.encode("utf-8"))
2278
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173 elif arg_type == OPT_LONG:
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174 self._opts.append("--{}".format(arg_name))
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175 self._opts.append(v.encode("utf-8"))
2278
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176 elif arg_type == OPT_POS:
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177 self._pos.append(v.encode("utf-8"))
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178 elif arg_type == OPT_IGNORE:
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179 pass
489efbda377c jp (input): input command first draft:
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180 else:
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181 self.parser.error(
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182 _(
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183 "Invalid argument, an option type is expected, got {type_}:{name}"
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184 ).format(type_=arg_type, name=arg_name)
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185 )
2278
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186
489efbda377c jp (input): input command first draft:
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187 def runCommand(self):
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188 """run requested command with parsed arguments"""
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189 if self.args_idx != len(self.args.arguments):
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190 self.disp(
3028
ab2696e34d29 Python 3 port:
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diff changeset
191 _("arguments in input data and in arguments sequence don't match"),
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diff changeset
192 error=True,
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193 )
2278
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parents:
diff changeset
194 self.host.quit(C.EXIT_DATA_ERROR)
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diff changeset
195 self.disp(
3028
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
196 A.color(C.A_HEADER, _("command {idx}").format(idx=self.idx)),
2624
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diff changeset
197 no_lf=not self.args.debug,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
198 )
56f94936df1e code style reformatting using black
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diff changeset
199 stdin = "".join(self._stdin)
2278
489efbda377c jp (input): input command first draft:
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parents:
diff changeset
200 if self.args.debug:
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diff changeset
201 self.disp(
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
202 A.color(
3028
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
203 C.A_SUBHEADER, _("values: "), A.RESET, ", ".join(self._values_ori)
2624
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diff changeset
204 ),
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
205 2,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
206 )
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
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diff changeset
207
2278
489efbda377c jp (input): input command first draft:
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diff changeset
208 if stdin:
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ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
209 self.disp(A.color(C.A_SUBHEADER, "--- STDIN ---"))
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
210 self.disp(stdin)
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
211 self.disp(A.color(C.A_SUBHEADER, "-------------"))
2624
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parents: 2562
diff changeset
212 self.disp(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
213 "{indent}{prog} {static} {options} {positionals}".format(
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
214 indent=4 * " ",
2624
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parents: 2562
diff changeset
215 prog=sys.argv[0],
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
216 static=" ".join(self.args.command),
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
217 options=" ".join([o for o in self._opts]),
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
218 positionals=" ".join([p for p in self._pos]),
2624
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parents: 2562
diff changeset
219 )
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
220 )
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
221 self.disp("\n")
2278
489efbda377c jp (input): input command first draft:
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parents:
diff changeset
222 else:
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ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
223 self.disp(" (" + ", ".join(self._values_ori) + ")", 2, no_lf=True)
2282
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diff changeset
224 args = [sys.argv[0]] + self.args.command + self._opts + self._pos
2624
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parents: 2562
diff changeset
225 p = subprocess.Popen(
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
226 args,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
227 stdin=subprocess.PIPE,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
228 stdout=subprocess.PIPE,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
229 stderr=subprocess.PIPE,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
230 )
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
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parents: 2278
diff changeset
231 (stdout, stderr) = p.communicate(stdin)
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
232 log = self.args.log
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
233 log_err = self.args.log_err
2624
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parents: 2562
diff changeset
234 log_tpl = "{command}\n{buff}\n\n"
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
235 if log:
2624
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parents: 2562
diff changeset
236 log.write(log_tpl.format(command=" ".join(args), buff=stdout))
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
237 if log_err:
2624
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parents: 2562
diff changeset
238 log_err.write(log_tpl.format(command=" ".join(args), buff=stderr))
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
239 ret = p.wait()
2278
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
240 if ret == 0:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
241 self.disp(A.color(C.A_SUCCESS, _("OK")))
2278
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
242 else:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
243 self.disp(A.color(C.A_FAILURE, _("FAILED")))
2278
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
244
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
245 self.reset()
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 self.idx += 1
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
247
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 def filter(self, filter_type, filter_arg, value):
2282
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
249 """change input value
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
250
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
251 @param filter_type(unicode): name of the filter
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
252 @param filter_arg(unicode, None): argument of the filter
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
253 @param value(unicode): value to filter
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
254 @return (unicode, False, None): modified value
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
255 False to skip the whole row
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
256 None to ignore this argument (but continue row with other ones)
d8e48c850ad2 jp (input): log improvments + empty filter:
Goffi <goffi@goffi.org>
parents: 2278
diff changeset
257 """
2278
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
258 raise NotImplementedError
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
259
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
260
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
261 class Csv(InputCommon):
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
262 def __init__(self, host):
3028
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
263 super(Csv, self).__init__(host, "csv", _("comma-separated values"))
2278
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
264
489efbda377c jp (input): input command first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
265 def add_parser_options(self):
489efbda377c jp (input): input command first draft:
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parents:
diff changeset
266 InputCommon.add_parser_options(self)
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diff changeset
267 self.parser.add_argument(
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
268 "-r",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
269 "--row",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
270 type=int,
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
271 default=0,
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
272 help=_("starting row (previous ones will be ignored)"),
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parents: 2562
diff changeset
273 )
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
274 self.parser.add_argument(
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
275 "-S",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
276 "--split",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
277 action="append_const",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
278 const=("split", None),
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
279 dest="arguments",
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
280 help=_("split value in several options"),
2624
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parents: 2562
diff changeset
281 )
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
282 self.parser.add_argument(
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
283 "-E",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
284 "--empty",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
285 action="append",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
286 type=self.opt("empty"),
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
287 dest="arguments",
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
288 help=_("action to do on empty value ({choices})").format(
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
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289 choices=", ".join(OPT_EMPTY_CHOICES)
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290 ),
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291 )
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292
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293 def filter(self, filter_type, filter_arg, value):
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294 if filter_type == "split":
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295 return value.split()
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296 elif filter_type == "empty":
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297 if filter_arg == OPT_EMPTY_IGNORE:
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298 return value if value else None
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299 elif filter_arg == OPT_EMPTY_SKIP:
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300 return value if value else False
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301 else:
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302 self.parser.error(
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303 _("--empty value must be one of {choices}").format(
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304 choices=", ".join(OPT_EMPTY_CHOICES)
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305 )
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306 )
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307
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308 super(Csv, self).filter(filter_type, filter_arg, value)
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309
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310 def start(self):
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311 import csv
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312
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313 reader = csv.reader(sys.stdin)
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314 for idx, row in enumerate(reader):
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315 try:
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316 if idx < self.args.row:
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317 continue
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318 for value in row:
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319 self.addValue(value.decode(self.args.encoding))
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320 self.runCommand()
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321 except exceptions.CancelError:
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322 #  this row has been cancelled, we skip it
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323 continue
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324
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325
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326 class Input(base.CommandBase):
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327 subcommands = (Csv,)
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328
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329 def __init__(self, host):
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330 super(Input, self).__init__(
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331 host,
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332 "input",
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333 use_profile=False,
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334 help=_("launch command with external input"),
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335 )