Mercurial > libervia-backend
annotate sat_frontends/jp/cmd_input.py @ 3513:753d151da886
XEP-0277: new preview/mbPreview method:
This method does more or less the same thing as sending, but without actually sending the
item, and parse the generated element just after. This way, the triggers are run, and a
preview of the item can be made for the resulting microblog data.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 29 Apr 2021 15:49:59 +0200 |
| parents | be6d91572633 |
| children | 524856bd7b19 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
| 2278 | 3 |
| 4 # jp: a SàT command line tool | |
| 3479 | 5 # Copyright (C) 2009-2021 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 end = '\n' if self.args.debug else ' ' |
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198 self.disp( |
| 3028 | 199 A.color(C.A_HEADER, _("command {idx}").format(idx=self.idx)), |
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200 end = end, |
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201 ) |
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202 stdin = "".join(self._stdin) |
| 2278 | 203 if self.args.debug: |
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204 self.disp( |
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205 A.color( |
| 3040 | 206 C.A_SUBHEADER, |
| 207 _("values: "), | |
| 208 A.RESET, | |
| 209 ", ".join([shlex.quote(a) for a in self._values_ori]) | |
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210 ), |
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211 2, |
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212 ) |
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213 |
| 2278 | 214 if stdin: |
| 3028 | 215 self.disp(A.color(C.A_SUBHEADER, "--- STDIN ---")) |
| 216 self.disp(stdin) | |
| 217 self.disp(A.color(C.A_SUBHEADER, "-------------")) | |
| 3040 | 218 |
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219 self.disp( |
| 3028 | 220 "{indent}{prog} {static} {options} {positionals}".format( |
| 221 indent=4 * " ", | |
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222 prog=sys.argv[0], |
| 3028 | 223 static=" ".join(self.args.command), |
| 3040 | 224 options=" ".join(shlex.quote(o) for o in self._opts), |
| 225 positionals=" ".join(shlex.quote(p) for p in self._pos), | |
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226 ) |
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227 ) |
| 3028 | 228 self.disp("\n") |
| 2278 | 229 else: |
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230 self.disp(" (" + ", ".join(self._values_ori) + ")", 2, end=' ') |
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231 args = [sys.argv[0]] + self.args.command + self._opts + self._pos |
| 3040 | 232 p = await asyncio.create_subprocess_exec( |
| 233 *args, | |
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234 stdin=subprocess.PIPE, |
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235 stdout=subprocess.PIPE, |
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236 stderr=subprocess.PIPE, |
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237 ) |
| 3040 | 238 stdout, stderr = await p.communicate(stdin.encode('utf-8')) |
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239 log = self.args.log |
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240 log_err = self.args.log_err |
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241 log_tpl = "{command}\n{buff}\n\n" |
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242 if log: |
| 3040 | 243 log.write(log_tpl.format( |
| 244 command=" ".join(shlex.quote(a) for a in args), | |
| 245 buff=stdout.decode('utf-8', 'replace'))) | |
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246 if log_err: |
| 3040 | 247 log_err.write(log_tpl.format( |
| 248 command=" ".join(shlex.quote(a) for a in args), | |
| 249 buff=stderr.decode('utf-8', 'replace'))) | |
| 250 ret = p.returncode | |
| 2278 | 251 if ret == 0: |
| 3028 | 252 self.disp(A.color(C.A_SUCCESS, _("OK"))) |
| 2278 | 253 else: |
| 3028 | 254 self.disp(A.color(C.A_FAILURE, _("FAILED"))) |
| 2278 | 255 |
| 256 self.reset() | |
| 257 self.idx += 1 | |
| 258 | |
| 259 def filter(self, filter_type, filter_arg, value): | |
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260 """change input value |
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261 |
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262 @param filter_type(unicode): name of the filter |
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263 @param filter_arg(unicode, None): argument of the filter |
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264 @param value(unicode): value to filter |
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265 @return (unicode, False, None): modified value |
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266 False to skip the whole row |
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267 None to ignore this argument (but continue row with other ones) |
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268 """ |
| 2278 | 269 raise NotImplementedError |
| 270 | |
| 271 | |
| 272 class Csv(InputCommon): | |
| 273 def __init__(self, host): | |
| 3028 | 274 super(Csv, self).__init__(host, "csv", _("comma-separated values")) |
| 2278 | 275 |
| 276 def add_parser_options(self): | |
| 277 InputCommon.add_parser_options(self) | |
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278 self.parser.add_argument( |
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279 "-r", |
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280 "--row", |
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281 type=int, |
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282 default=0, |
| 3028 | 283 help=_("starting row (previous ones will be ignored)"), |
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284 ) |
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285 self.parser.add_argument( |
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286 "-S", |
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287 "--split", |
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288 action="append_const", |
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289 const=("split", None), |
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290 dest="arguments", |
| 3028 | 291 help=_("split value in several options"), |
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292 ) |
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293 self.parser.add_argument( |
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294 "-E", |
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295 "--empty", |
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296 action="append", |
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297 type=self.opt("empty"), |
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298 dest="arguments", |
| 3028 | 299 help=_("action to do on empty value ({choices})").format( |
| 300 choices=", ".join(OPT_EMPTY_CHOICES) | |
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301 ), |
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302 ) |
| 2278 | 303 |
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304 def filter(self, filter_type, filter_arg, value): |
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305 if filter_type == "split": |
| 2278 | 306 return value.split() |
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307 elif filter_type == "empty": |
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308 if filter_arg == OPT_EMPTY_IGNORE: |
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309 return value if value else None |
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310 elif filter_arg == OPT_EMPTY_SKIP: |
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311 return value if value else False |
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312 else: |
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313 self.parser.error( |
| 3028 | 314 _("--empty value must be one of {choices}").format( |
| 315 choices=", ".join(OPT_EMPTY_CHOICES) | |
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316 ) |
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317 ) |
| 2278 | 318 |
| 319 super(Csv, self).filter(filter_type, filter_arg, value) | |
| 320 | |
| 3040 | 321 async def start(self): |
| 2278 | 322 import csv |
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323 |
| 3040 | 324 if self.args.encoding: |
| 325 sys.stdin.reconfigure(encoding=self.args.encoding, errors="replace") | |
| 2278 | 326 reader = csv.reader(sys.stdin) |
| 327 for idx, row in enumerate(reader): | |
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328 try: |
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329 if idx < self.args.row: |
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330 continue |
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331 for value in row: |
| 3040 | 332 self.addValue(value) |
| 333 await self.runCommand() | |
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334 except exceptions.CancelError: |
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335 # this row has been cancelled, we skip it |
| 2278 | 336 continue |
| 337 | |
| 3040 | 338 self.host.quit() |
| 339 | |
| 2278 | 340 |
| 341 class Input(base.CommandBase): | |
| 342 subcommands = (Csv,) | |
| 343 | |
| 344 def __init__(self, host): | |
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345 super(Input, self).__init__( |
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346 host, |
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347 "input", |
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348 use_profile=False, |
| 3028 | 349 help=_("launch command with external input"), |
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350 ) |