Mercurial > libervia-backend
annotate sat_frontends/jp/cmd_input.py @ 3198:08151c103636
core (memory/cache): added some metadata:
- creation/last_access are now set
- use filename to guess MIME type when suitable
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 01 Mar 2020 18:31:45 +0100 |
| parents | 559a625a236b |
| children | 2f0be2b7de68 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 2278 | 3 |
| 4 # jp: a SàT command line tool | |
| 3136 | 5 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org) |
| 2278 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 | |
| 3040 | 21 import subprocess |
| 22 import argparse | |
| 23 import sys | |
| 24 import shlex | |
| 25 import asyncio | |
| 3028 | 26 from . import base |
| 2278 | 27 from sat.core.i18n import _ |
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28 from sat.core import exceptions |
| 2278 | 29 from sat_frontends.jp.constants import Const as C |
| 30 from sat.tools.common.ansi import ANSI as A | |
| 31 | |
| 32 __commands__ = ["Input"] | |
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33 OPT_STDIN = "stdin" |
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34 OPT_SHORT = "short" |
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35 OPT_LONG = "long" |
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36 OPT_POS = "positional" |
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37 OPT_IGNORE = "ignore" |
| 2278 | 38 OPT_TYPES = (OPT_STDIN, OPT_SHORT, OPT_LONG, OPT_POS, OPT_IGNORE) |
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39 OPT_EMPTY_SKIP = "skip" |
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40 OPT_EMPTY_IGNORE = "ignore" |
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41 OPT_EMPTY_CHOICES = (OPT_EMPTY_SKIP, OPT_EMPTY_IGNORE) |
| 2278 | 42 |
| 43 | |
| 44 class InputCommon(base.CommandBase): | |
| 45 def __init__(self, host, name, help): | |
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46 base.CommandBase.__init__( |
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47 self, host, name, use_verbose=True, use_profile=False, help=help |
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48 ) |
| 2278 | 49 self.idx = 0 |
| 50 self.reset() | |
| 51 | |
| 52 def reset(self): | |
| 53 self.args_idx = 0 | |
| 54 self._stdin = [] | |
| 55 self._opts = [] | |
| 56 self._pos = [] | |
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57 self._values_ori = [] |
| 2278 | 58 |
| 59 def add_parser_options(self): | |
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60 self.parser.add_argument( |
| 3028 | 61 "--encoding", default="utf-8", help=_("encoding of the input data") |
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62 ) |
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63 self.parser.add_argument( |
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64 "-i", |
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65 "--stdin", |
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66 action="append_const", |
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67 const=(OPT_STDIN, None), |
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68 dest="arguments", |
| 3028 | 69 help=_("standard input"), |
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70 ) |
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71 self.parser.add_argument( |
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72 "-s", |
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73 "--short", |
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74 type=self.opt(OPT_SHORT), |
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75 action="append", |
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76 dest="arguments", |
| 3028 | 77 help=_("short option"), |
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78 ) |
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79 self.parser.add_argument( |
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80 "-l", |
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81 "--long", |
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82 type=self.opt(OPT_LONG), |
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83 action="append", |
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84 dest="arguments", |
| 3028 | 85 help=_("long option"), |
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86 ) |
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87 self.parser.add_argument( |
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88 "-p", |
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89 "--positional", |
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90 type=self.opt(OPT_POS), |
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91 action="append", |
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92 dest="arguments", |
| 3028 | 93 help=_("positional argument"), |
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94 ) |
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95 self.parser.add_argument( |
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96 "-x", |
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97 "--ignore", |
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98 action="append_const", |
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99 const=(OPT_IGNORE, None), |
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100 dest="arguments", |
| 3028 | 101 help=_("ignore value"), |
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102 ) |
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103 self.parser.add_argument( |
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104 "-D", |
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105 "--debug", |
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106 action="store_true", |
| 3028 | 107 help=_("don't actually run commands but echo what would be launched"), |
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108 ) |
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109 self.parser.add_argument( |
| 3040 | 110 "--log", type=argparse.FileType("w"), help=_("log stdout to FILE") |
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111 ) |
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112 self.parser.add_argument( |
| 3040 | 113 "--log-err", type=argparse.FileType("w"), help=_("log stderr to FILE") |
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114 ) |
| 2278 | 115 self.parser.add_argument("command", nargs=argparse.REMAINDER) |
| 116 | |
| 117 def opt(self, type_): | |
| 118 return lambda s: (type_, s) | |
| 119 | |
| 120 def addValue(self, value): | |
| 121 """add a parsed value according to arguments sequence""" | |
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122 self._values_ori.append(value) |
| 2278 | 123 arguments = self.args.arguments |
| 124 try: | |
| 125 arg_type, arg_name = arguments[self.args_idx] | |
| 126 except IndexError: | |
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127 self.disp( |
| 3028 | 128 _("arguments in input data and in arguments sequence don't match"), |
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129 error=True, |
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130 ) |
| 2278 | 131 self.host.quit(C.EXIT_DATA_ERROR) |
| 132 self.args_idx += 1 | |
| 133 while self.args_idx < len(arguments): | |
| 134 next_arg = arguments[self.args_idx] | |
| 135 if next_arg[0] not in OPT_TYPES: | |
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136 # value will not be used if False or None, so we skip filter |
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137 if value not in (False, None): |
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138 # we have a filter |
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139 filter_type, filter_arg = arguments[self.args_idx] |
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140 value = self.filter(filter_type, filter_arg, value) |
| 2278 | 141 else: |
| 142 break | |
| 143 self.args_idx += 1 | |
| 144 | |
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145 if value is None: |
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146 # we ignore this argument |
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147 return |
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148 |
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149 if value is False: |
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150 # we skip the whole row |
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151 if self.args.debug: |
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152 self.disp( |
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153 A.color( |
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154 C.A_SUBHEADER, |
| 3028 | 155 _("values: "), |
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156 A.RESET, |
| 3028 | 157 ", ".join(self._values_ori), |
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158 ), |
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159 2, |
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160 ) |
| 3028 | 161 self.disp(A.color(A.BOLD, _("**SKIPPING**\n"))) |
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162 self.reset() |
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163 self.idx += 1 |
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164 raise exceptions.CancelError |
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165 |
| 2278 | 166 if not isinstance(value, list): |
| 167 value = [value] | |
| 168 | |
| 169 for v in value: | |
| 170 if arg_type == OPT_STDIN: | |
| 3040 | 171 self._stdin.append(v) |
| 2278 | 172 elif arg_type == OPT_SHORT: |
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173 self._opts.append("-{}".format(arg_name)) |
| 3040 | 174 self._opts.append(v) |
| 2278 | 175 elif arg_type == OPT_LONG: |
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176 self._opts.append("--{}".format(arg_name)) |
| 3040 | 177 self._opts.append(v) |
| 2278 | 178 elif arg_type == OPT_POS: |
| 3040 | 179 self._pos.append(v) |
| 2278 | 180 elif arg_type == OPT_IGNORE: |
| 181 pass | |
| 182 else: | |
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183 self.parser.error( |
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184 _( |
| 3028 | 185 "Invalid argument, an option type is expected, got {type_}:{name}" |
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186 ).format(type_=arg_type, name=arg_name) |
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187 ) |
| 2278 | 188 |
| 3040 | 189 async def runCommand(self): |
| 2278 | 190 """run requested command with parsed arguments""" |
| 191 if self.args_idx != len(self.args.arguments): | |
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192 self.disp( |
| 3028 | 193 _("arguments in input data and in arguments sequence don't match"), |
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194 error=True, |
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195 ) |
| 2278 | 196 self.host.quit(C.EXIT_DATA_ERROR) |
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197 self.disp( |
| 3028 | 198 A.color(C.A_HEADER, _("command {idx}").format(idx=self.idx)), |
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199 no_lf=not self.args.debug, |
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200 ) |
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201 stdin = "".join(self._stdin) |
| 2278 | 202 if self.args.debug: |
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203 self.disp( |
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204 A.color( |
| 3040 | 205 C.A_SUBHEADER, |
| 206 _("values: "), | |
| 207 A.RESET, | |
| 208 ", ".join([shlex.quote(a) for a in self._values_ori]) | |
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209 ), |
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210 2, |
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211 ) |
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212 |
| 2278 | 213 if stdin: |
| 3028 | 214 self.disp(A.color(C.A_SUBHEADER, "--- STDIN ---")) |
| 215 self.disp(stdin) | |
| 216 self.disp(A.color(C.A_SUBHEADER, "-------------")) | |
| 3040 | 217 |
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218 self.disp( |
| 3028 | 219 "{indent}{prog} {static} {options} {positionals}".format( |
| 220 indent=4 * " ", | |
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221 prog=sys.argv[0], |
| 3028 | 222 static=" ".join(self.args.command), |
| 3040 | 223 options=" ".join(shlex.quote(o) for o in self._opts), |
| 224 positionals=" ".join(shlex.quote(p) for p in self._pos), | |
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225 ) |
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226 ) |
| 3028 | 227 self.disp("\n") |
| 2278 | 228 else: |
| 3028 | 229 self.disp(" (" + ", ".join(self._values_ori) + ")", 2, no_lf=True) |
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230 args = [sys.argv[0]] + self.args.command + self._opts + self._pos |
| 3040 | 231 p = await asyncio.create_subprocess_exec( |
| 232 *args, | |
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233 stdin=subprocess.PIPE, |
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234 stdout=subprocess.PIPE, |
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235 stderr=subprocess.PIPE, |
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236 ) |
| 3040 | 237 stdout, stderr = await p.communicate(stdin.encode('utf-8')) |
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238 log = self.args.log |
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239 log_err = self.args.log_err |
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240 log_tpl = "{command}\n{buff}\n\n" |
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241 if log: |
| 3040 | 242 log.write(log_tpl.format( |
| 243 command=" ".join(shlex.quote(a) for a in args), | |
| 244 buff=stdout.decode('utf-8', 'replace'))) | |
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245 if log_err: |
| 3040 | 246 log_err.write(log_tpl.format( |
| 247 command=" ".join(shlex.quote(a) for a in args), | |
| 248 buff=stderr.decode('utf-8', 'replace'))) | |
| 249 ret = p.returncode | |
| 2278 | 250 if ret == 0: |
| 3028 | 251 self.disp(A.color(C.A_SUCCESS, _("OK"))) |
| 2278 | 252 else: |
| 3028 | 253 self.disp(A.color(C.A_FAILURE, _("FAILED"))) |
| 2278 | 254 |
| 255 self.reset() | |
| 256 self.idx += 1 | |
| 257 | |
| 258 def filter(self, filter_type, filter_arg, value): | |
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259 """change input value |
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260 |
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261 @param filter_type(unicode): name of the filter |
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262 @param filter_arg(unicode, None): argument of the filter |
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263 @param value(unicode): value to filter |
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264 @return (unicode, False, None): modified value |
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265 False to skip the whole row |
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266 None to ignore this argument (but continue row with other ones) |
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267 """ |
| 2278 | 268 raise NotImplementedError |
| 269 | |
| 270 | |
| 271 class Csv(InputCommon): | |
| 272 def __init__(self, host): | |
| 3028 | 273 super(Csv, self).__init__(host, "csv", _("comma-separated values")) |
| 2278 | 274 |
| 275 def add_parser_options(self): | |
| 276 InputCommon.add_parser_options(self) | |
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277 self.parser.add_argument( |
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278 "-r", |
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279 "--row", |
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280 type=int, |
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281 default=0, |
| 3028 | 282 help=_("starting row (previous ones will be ignored)"), |
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283 ) |
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284 self.parser.add_argument( |
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285 "-S", |
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286 "--split", |
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287 action="append_const", |
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288 const=("split", None), |
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289 dest="arguments", |
| 3028 | 290 help=_("split value in several options"), |
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291 ) |
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292 self.parser.add_argument( |
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293 "-E", |
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294 "--empty", |
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295 action="append", |
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296 type=self.opt("empty"), |
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297 dest="arguments", |
| 3028 | 298 help=_("action to do on empty value ({choices})").format( |
| 299 choices=", ".join(OPT_EMPTY_CHOICES) | |
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300 ), |
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301 ) |
| 2278 | 302 |
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303 def filter(self, filter_type, filter_arg, value): |
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304 if filter_type == "split": |
| 2278 | 305 return value.split() |
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306 elif filter_type == "empty": |
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307 if filter_arg == OPT_EMPTY_IGNORE: |
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308 return value if value else None |
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309 elif filter_arg == OPT_EMPTY_SKIP: |
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310 return value if value else False |
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311 else: |
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312 self.parser.error( |
| 3028 | 313 _("--empty value must be one of {choices}").format( |
| 314 choices=", ".join(OPT_EMPTY_CHOICES) | |
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315 ) |
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316 ) |
| 2278 | 317 |
| 318 super(Csv, self).filter(filter_type, filter_arg, value) | |
| 319 | |
| 3040 | 320 async def start(self): |
| 2278 | 321 import csv |
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322 |
| 3040 | 323 if self.args.encoding: |
| 324 sys.stdin.reconfigure(encoding=self.args.encoding, errors="replace") | |
| 2278 | 325 reader = csv.reader(sys.stdin) |
| 326 for idx, row in enumerate(reader): | |
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327 try: |
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328 if idx < self.args.row: |
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329 continue |
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330 for value in row: |
| 3040 | 331 self.addValue(value) |
| 332 await self.runCommand() | |
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333 except exceptions.CancelError: |
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334 # this row has been cancelled, we skip it |
| 2278 | 335 continue |
| 336 | |
| 3040 | 337 self.host.quit() |
| 338 | |
| 2278 | 339 |
| 340 class Input(base.CommandBase): | |
| 341 subcommands = (Csv,) | |
| 342 | |
| 343 def __init__(self, host): | |
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344 super(Input, self).__init__( |
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345 host, |
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346 "input", |
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347 use_profile=False, |
| 3028 | 348 help=_("launch command with external input"), |
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349 ) |