Mercurial > libervia-backend
annotate sat_frontends/jp/common.py @ 3088:d1464548055a
plugin file download: meta plugin to handle file download:
- first code in backend to use async/await Python syntax \o/
- plugin with file upload
- URL schemes can be registered
- `http` and `https` schemes are handled by default
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 20 Dec 2019 12:28:04 +0100 |
| parents | d9f328374473 |
| children | 040ca99e25fe |
| rev | line source |
|---|---|
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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 |
| 2771 | 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 |
| 3040 | 20 import json |
| 21 import os | |
| 22 import os.path | |
| 23 import time | |
| 24 import tempfile | |
| 25 import asyncio | |
| 26 import shlex | |
| 27 from pathlib import Path | |
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28 from sat_frontends.jp.constants import Const as C |
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29 from sat.core.i18n import _ |
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30 from sat.core import exceptions |
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31 from sat.tools.common import regex |
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32 from sat.tools.common.ansi import ANSI as A |
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33 from sat.tools.common import uri as xmpp_uri |
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34 from sat.tools import config |
| 3028 | 35 from configparser import NoSectionError, NoOptionError |
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36 from collections import namedtuple |
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37 |
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38 # defaut arguments used for some known editors (editing with metadata) |
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39 VIM_SPLIT_ARGS = "-c 'set nospr|vsplit|wincmd w|next|wincmd w'" |
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40 EMACS_SPLIT_ARGS = '--eval "(split-window-horizontally)"' |
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41 EDITOR_ARGS_MAGIC = { |
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42 "vim": VIM_SPLIT_ARGS + " {content_file} {metadata_file}", |
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43 "gvim": VIM_SPLIT_ARGS + " --nofork {content_file} {metadata_file}", |
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44 "emacs": EMACS_SPLIT_ARGS + " {content_file} {metadata_file}", |
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45 "xemacs": EMACS_SPLIT_ARGS + " {content_file} {metadata_file}", |
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46 "nano": " -F {content_file} {metadata_file}", |
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47 } |
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48 |
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49 SECURE_UNLINK_MAX = 10 |
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50 SECURE_UNLINK_DIR = ".backup" |
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51 METADATA_SUFF = "_metadata.json" |
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52 |
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53 |
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54 def ansi_ljust(s, width): |
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55 """ljust method handling ANSI escape codes""" |
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56 cleaned = regex.ansiRemove(s) |
| 3028 | 57 return s + " " * (width - len(cleaned)) |
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58 |
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59 |
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60 def ansi_center(s, width): |
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61 """ljust method handling ANSI escape codes""" |
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62 cleaned = regex.ansiRemove(s) |
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63 diff = width - len(cleaned) |
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64 half = diff / 2 |
| 3028 | 65 return half * " " + s + (half + diff % 2) * " " |
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66 |
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67 |
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68 def ansi_rjust(s, width): |
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69 """ljust method handling ANSI escape codes""" |
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70 cleaned = regex.ansiRemove(s) |
| 3028 | 71 return " " * (width - len(cleaned)) + s |
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72 |
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73 |
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74 def getTmpDir(sat_conf, cat_dir, sub_dir=None): |
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75 """Return directory used to store temporary files |
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76 |
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77 @param sat_conf(ConfigParser.ConfigParser): instance opened on sat configuration |
| 3040 | 78 @param cat_dir(str): directory of the category (e.g. "blog") |
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79 @param sub_dir(str): sub directory where data need to be put |
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80 profile can be used here, or special directory name |
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81 sub_dir will be escaped to be usable in path (use regex.pathUnescape to find |
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82 initial str) |
| 3040 | 83 @return (Path): path to the dir |
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84 """ |
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85 local_dir = config.getConfig(sat_conf, "", "local_dir", Exception) |
| 3040 | 86 path_elts = [local_dir, cat_dir] |
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87 if sub_dir is not None: |
| 3040 | 88 path_elts.append(regex.pathEscape(sub_dir)) |
| 89 return Path(*path_elts) | |
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90 |
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91 |
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92 def parse_args(host, cmd_line, **format_kw): |
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93 """Parse command arguments |
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94 |
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95 @param cmd_line(unicode): command line as found in sat.conf |
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96 @param format_kw: keywords used for formating |
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97 @return (list(unicode)): list of arguments to pass to subprocess function |
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98 """ |
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99 try: |
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100 # we split the arguments and add the known fields |
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101 # we split arguments first to avoid escaping issues in file names |
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102 return [a.format(**format_kw) for a in shlex.split(cmd_line)] |
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103 except ValueError as e: |
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104 host.disp( |
| 3028 | 105 "Couldn't parse editor cmd [{cmd}]: {reason}".format(cmd=cmd_line, reason=e) |
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106 ) |
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107 return [] |
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108 |
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109 |
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110 class BaseEdit(object): |
| 3028 | 111 """base class for editing commands |
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112 |
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113 This class allows to edit file for PubSub or something else. |
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114 It works with temporary files in SàT local_dir, in a "cat_dir" subdir |
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115 """ |
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116 |
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117 def __init__(self, host, cat_dir, use_metadata=False): |
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118 """ |
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119 @param sat_conf(ConfigParser.ConfigParser): instance opened on sat configuration |
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120 @param cat_dir(unicode): directory to use for drafts |
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121 this will be a sub-directory of SàT's local_dir |
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122 @param use_metadata(bool): True is edition need a second file for metadata |
| 3040 | 123 most of signature change with use_metadata with an additional metadata |
| 124 argument. | |
| 125 This is done to raise error if a command needs metadata but forget the flag, | |
| 126 and vice versa | |
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127 """ |
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128 self.host = host |
| 3040 | 129 self.cat_dir = cat_dir |
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130 self.use_metadata = use_metadata |
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131 |
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132 def secureUnlink(self, path): |
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133 """Unlink given path after keeping it for a while |
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134 |
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135 This method is used to prevent accidental deletion of a draft |
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136 If there are more file in SECURE_UNLINK_DIR than SECURE_UNLINK_MAX, |
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137 older file are deleted |
| 3040 | 138 @param path(Path, str): file to unlink |
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139 """ |
| 3040 | 140 path = Path(path).resolve() |
| 141 if not path.is_file: | |
| 3028 | 142 raise OSError("path must link to a regular file") |
| 3040 | 143 if path.parent != getTmpDir(self.sat_conf, self.cat_dir): |
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144 self.disp( |
| 3040 | 145 f"File {path} is not in SàT temporary hierarchy, we do not remove " |
| 146 f"it", | |
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147 2, |
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148 ) |
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149 return |
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150 # we have 2 files per draft with use_metadata, so we double max |
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151 unlink_max = SECURE_UNLINK_MAX * 2 if self.use_metadata else SECURE_UNLINK_MAX |
| 3040 | 152 backup_dir = getTmpDir(self.sat_conf, self.cat_dir, SECURE_UNLINK_DIR) |
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153 if not os.path.exists(backup_dir): |
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154 os.makedirs(backup_dir) |
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155 filename = os.path.basename(path) |
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156 backup_path = os.path.join(backup_dir, filename) |
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157 # we move file to backup dir |
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158 self.host.disp( |
| 3028 | 159 "Backuping file {src} to {dst}".format( |
| 160 src=path, dst=backup_path | |
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161 ), |
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162 1, |
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163 ) |
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164 os.rename(path, backup_path) |
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165 # and if we exceeded the limit, we remove older file |
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166 backup_files = [os.path.join(backup_dir, f) for f in os.listdir(backup_dir)] |
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167 if len(backup_files) > unlink_max: |
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168 backup_files.sort(key=lambda path: os.stat(path).st_mtime) |
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169 for path in backup_files[: len(backup_files) - unlink_max]: |
| 3028 | 170 self.host.disp("Purging backup file {}".format(path), 2) |
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171 os.unlink(path) |
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172 |
| 3040 | 173 async def runEditor(self, editor_args_opt, content_file_path, content_file_obj, |
| 174 meta_file_path=None, meta_ori=None): | |
| 175 """Run editor to edit content and metadata | |
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176 |
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177 @param editor_args_opt(unicode): option in [jp] section in configuration for |
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178 specific args |
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179 @param content_file_path(str): path to the content file |
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180 @param content_file_obj(file): opened file instance |
| 3040 | 181 @param meta_file_path(str, Path, None): metadata file path |
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182 if None metadata will not be used |
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183 @param meta_ori(dict, None): original cotent of metadata |
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184 can't be used if use_metadata is False |
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185 """ |
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186 if not self.use_metadata: |
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187 assert meta_file_path is None |
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188 assert meta_ori is None |
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189 |
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190 # we calculate hashes to check for modifications |
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191 import hashlib |
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192 |
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193 content_file_obj.seek(0) |
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194 tmp_ori_hash = hashlib.sha1(content_file_obj.read()).digest() |
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195 content_file_obj.close() |
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196 |
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197 # we prepare arguments |
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198 editor = config.getConfig(self.sat_conf, "jp", "editor") or os.getenv( |
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199 "EDITOR", "vi" |
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200 ) |
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201 try: |
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202 # is there custom arguments in sat.conf ? |
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203 editor_args = config.getConfig( |
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204 self.sat_conf, "jp", editor_args_opt, Exception |
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205 ) |
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206 except (NoOptionError, NoSectionError): |
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207 # no, we check if we know the editor and have special arguments |
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208 if self.use_metadata: |
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209 editor_args = EDITOR_ARGS_MAGIC.get(os.path.basename(editor), "") |
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210 else: |
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211 editor_args = "" |
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212 parse_kwargs = {"content_file": content_file_path} |
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213 if self.use_metadata: |
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214 parse_kwargs["metadata_file"] = meta_file_path |
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215 args = parse_args(self.host, editor_args, **parse_kwargs) |
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216 if not args: |
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217 args = [content_file_path] |
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218 |
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219 # actual editing |
| 3040 | 220 editor_process = await asyncio.create_subprocess_exec( |
| 221 editor, *[str(a) for a in args]) | |
| 222 editor_exit = await editor_process.wait() | |
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223 |
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224 # edition will now be checked, and data will be sent if it was a success |
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225 if editor_exit != 0: |
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226 self.disp( |
| 3040 | 227 f"Editor exited with an error code, so temporary file has not be " |
| 228 f"deleted, and item is not published.\nYou can find temporary file " | |
| 229 f"at {content_file_path}", | |
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230 error=True, |
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231 ) |
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232 else: |
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233 # main content |
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234 try: |
| 3040 | 235 with content_file_path.open("rb") as f: |
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236 content = f.read() |
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237 except (OSError, IOError): |
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238 self.disp( |
| 3040 | 239 f"Can read file at {content_file_path}, have it been deleted?\n" |
| 240 f"Cancelling edition", | |
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241 error=True, |
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242 ) |
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243 self.host.quit(C.EXIT_NOT_FOUND) |
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244 |
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245 # metadata |
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246 if self.use_metadata: |
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247 try: |
| 3040 | 248 with meta_file_path.open("rb") as f: |
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249 metadata = json.load(f) |
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250 except (OSError, IOError): |
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251 self.disp( |
| 3040 | 252 f"Can read file at {meta_file_path}, have it been deleted?\n" |
| 253 f"Cancelling edition", | |
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254 error=True, |
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255 ) |
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256 self.host.quit(C.EXIT_NOT_FOUND) |
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257 except ValueError: |
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258 self.disp( |
| 3040 | 259 f"Can't parse metadata, please check it is correct JSON format. " |
| 260 f"Cancelling edition.\nYou can find tmp file at " | |
| 261 f"{content_file_path} and temporary meta file at " | |
| 262 f"{meta_file_path}.", | |
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263 error=True, |
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264 ) |
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265 self.host.quit(C.EXIT_DATA_ERROR) |
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266 |
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267 if self.use_metadata and not metadata.get("publish", True): |
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268 self.disp( |
| 3040 | 269 f'Publication blocked by "publish" key in metadata, cancelling ' |
| 270 f'edition.\n\ntemporary file path:\t{content_file_path}\nmetadata ' | |
| 271 f'file path:\t{meta_file_path}', | |
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272 error=True, |
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273 ) |
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274 self.host.quit() |
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275 |
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276 if len(content) == 0: |
| 3028 | 277 self.disp("Content is empty, cancelling the edition") |
| 3040 | 278 if content_file_path.parent != getTmpDir(self.sat_conf, self.cat_dir): |
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279 self.disp( |
| 3028 | 280 "File are not in SàT temporary hierarchy, we do not remove them", |
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281 2, |
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282 ) |
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283 self.host.quit() |
| 3040 | 284 self.disp(f"Deletion of {content_file_path}", 2) |
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285 os.unlink(content_file_path) |
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286 if self.use_metadata: |
| 3040 | 287 self.disp(f"Deletion of {meta_file_path}".format(meta_file_path), 2) |
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288 os.unlink(meta_file_path) |
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289 self.host.quit() |
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290 |
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291 # time to re-check the hash |
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292 elif tmp_ori_hash == hashlib.sha1(content).digest() and ( |
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293 not self.use_metadata or meta_ori == metadata |
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294 ): |
| 3028 | 295 self.disp("The content has not been modified, cancelling the edition") |
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296 self.host.quit() |
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297 |
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298 else: |
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299 # we can now send the item |
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300 content = content.decode("utf-8-sig") # we use utf-8-sig to avoid BOM |
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301 try: |
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302 if self.use_metadata: |
| 3040 | 303 await self.publish(content, metadata) |
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304 else: |
| 3040 | 305 await self.publish(content) |
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306 except Exception as e: |
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307 if self.use_metadata: |
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308 self.disp( |
| 3040 | 309 f"Error while sending your item, the temporary files have " |
| 310 f"been kept at {content_file_path} and {meta_file_path}: " | |
| 311 f"{e}", | |
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312 error=True, |
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313 ) |
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314 else: |
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315 self.disp( |
| 3040 | 316 f"Error while sending your item, the temporary file has been " |
| 317 f"kept at {content_file_path}: {e}", | |
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318 error=True, |
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319 ) |
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320 self.host.quit(1) |
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321 |
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322 self.secureUnlink(content_file_path) |
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323 if self.use_metadata: |
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324 self.secureUnlink(meta_file_path) |
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325 |
| 3040 | 326 async def publish(self, content): |
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327 # if metadata is needed, publish will be called with it last argument |
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328 raise NotImplementedError |
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329 |
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330 def getTmpFile(self): |
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331 """Create a temporary file |
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332 |
| 3040 | 333 @return (tuple(file, Path)): opened (w+b) file object and file path |
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334 """ |
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335 suff = "." + self.getTmpSuff() |
| 3040 | 336 cat_dir_str = self.cat_dir |
| 337 tmp_dir = getTmpDir(self.sat_conf, self.cat_dir, self.profile) | |
| 338 if not tmp_dir.exists(): | |
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339 try: |
| 3040 | 340 tmp_dir.mkdir(parents=True) |
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341 except OSError as e: |
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342 self.disp( |
| 3040 | 343 f"Can't create {tmp_dir} directory: {e}", |
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344 error=True, |
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345 ) |
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346 self.host.quit(1) |
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347 try: |
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348 fd, path = tempfile.mkstemp( |
| 3040 | 349 suffix=suff, |
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350 prefix=time.strftime(cat_dir_str + "_%Y-%m-%d_%H:%M:%S_"), |
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351 dir=tmp_dir, |
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352 text=True, |
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353 ) |
| 3040 | 354 return os.fdopen(fd, "w+b"), Path(path) |
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355 except OSError as e: |
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356 self.disp( |
| 3040 | 357 f"Can't create temporary file: {e}", error=True |
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358 ) |
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359 self.host.quit(1) |
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360 |
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361 def getCurrentFile(self, profile): |
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362 """Get most recently edited file |
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363 |
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364 @param profile(unicode): profile linked to the draft |
| 3040 | 365 @return(Path): full path of current file |
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366 """ |
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367 # we guess the item currently edited by choosing |
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368 # the most recent file corresponding to temp file pattern |
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369 # in tmp_dir, excluding metadata files |
| 3040 | 370 tmp_dir = getTmpDir(self.sat_conf, self.cat_dir, profile) |
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371 available = [ |
| 3040 | 372 p |
| 373 for p in tmp_dir.glob(f'{self.cat_dir}_*') | |
| 374 if not p.match(f"*{METADATA_SUFF}") | |
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375 ] |
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376 if not available: |
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377 self.disp( |
| 3040 | 378 f"Could not find any content draft in {tmp_dir}", |
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379 error=True, |
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380 ) |
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381 self.host.quit(1) |
| 3040 | 382 return max(available, key=lambda p: p.stat().st_mtime) |
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383 |
| 3040 | 384 async def getItemData(self, service, node, item): |
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385 """return formatted content, metadata (or not if use_metadata is false), and item id""" |
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386 raise NotImplementedError |
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387 |
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388 def getTmpSuff(self): |
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389 """return suffix used for content file""" |
| 3028 | 390 return "xml" |
|
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391 |
| 3040 | 392 async def getItemPath(self): |
| 393 """Retrieve item path (i.e. service and node) from item argument | |
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394 |
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395 This method is obviously only useful for edition of PubSub based features |
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396 """ |
| 2532 | 397 service = self.args.service |
| 398 node = self.args.node | |
| 399 item = self.args.item | |
| 400 last_item = self.args.last_item | |
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401 |
| 2532 | 402 if self.args.current: |
| 403 # user wants to continue current draft | |
| 404 content_file_path = self.getCurrentFile(self.profile) | |
| 3028 | 405 self.disp("Continuing edition of current draft", 2) |
| 3040 | 406 content_file_obj = content_file_path.open("r+b") |
| 2532 | 407 # we seek at the end of file in case of an item already exist |
| 408 # this will write content of the existing item at the end of the draft. | |
| 409 # This way no data should be lost. | |
| 410 content_file_obj.seek(0, os.SEEK_END) | |
| 411 elif self.args.draft_path: | |
| 412 # there is an existing draft that we use | |
| 3040 | 413 content_file_path = self.args.draft_path.expanduser() |
| 414 content_file_obj = content_file_path.open("r+b") | |
| 2532 | 415 # we seek at the end for the same reason as above |
| 416 content_file_obj.seek(0, os.SEEK_END) | |
| 417 else: | |
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418 # we need a temporary file |
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419 content_file_obj, content_file_path = self.getTmpFile() |
| 2532 | 420 |
| 421 if item or last_item: | |
| 3028 | 422 self.disp("Editing requested published item", 2) |
| 2532 | 423 try: |
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424 if self.use_metadata: |
| 3040 | 425 content, metadata, item = await self.getItemData(service, node, item) |
| 2532 | 426 else: |
| 3040 | 427 content, item = await self.getItemData(service, node, item) |
| 2532 | 428 except Exception as e: |
| 429 # FIXME: ugly but we have not good may to check errors in bridge | |
| 3028 | 430 if "item-not-found" in str(e): |
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431 # item doesn't exist, we create a new one with requested id |
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432 metadata = None |
| 2532 | 433 if last_item: |
| 3028 | 434 self.disp(_("no item found at all, we create a new one"), 2) |
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435 else: |
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436 self.disp( |
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437 _( |
| 3040 | 438 f'item "{item}" not found, we create a new item with' |
| 439 f'this id' | |
| 440 ), | |
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441 2, |
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442 ) |
| 2532 | 443 content_file_obj.seek(0) |
| 444 else: | |
| 3040 | 445 self.disp(f"Error while retrieving item: {e}") |
| 2532 | 446 self.host.quit(C.EXIT_ERROR) |
| 447 else: | |
| 448 # item exists, we write content | |
| 449 if content_file_obj.tell() != 0: | |
| 450 # we already have a draft, | |
| 451 # we copy item content after it and add an indicator | |
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452 content_file_obj.write("\n*****\n") |
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453 content_file_obj.write(content.encode("utf-8")) |
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454 content_file_obj.seek(0) |
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455 self.disp( |
| 3040 | 456 _(f'item "{item}" found, we edit it'), 2 |
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457 ) |
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458 else: |
| 3028 | 459 self.disp("Editing a new item", 2) |
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460 if self.use_metadata: |
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461 metadata = None |
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462 |
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463 if self.use_metadata: |
| 2532 | 464 return service, node, item, content_file_path, content_file_obj, metadata |
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465 else: |
| 2532 | 466 return service, node, item, content_file_path, content_file_obj |
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467 |
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468 |
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469 class Table(object): |
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470 def __init__(self, host, data, headers=None, filters=None, use_buffer=False): |
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471 """ |
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472 @param data(iterable[list]): table data |
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473 all lines must have the same number of columns |
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474 @param headers(iterable[unicode], None): names/titles of the columns |
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475 if not None, must have same number of columns as data |
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476 @param filters(iterable[(callable, unicode)], None): values filters |
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477 the callable will get 2 arguments: |
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478 - current column value |
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479 - RowData with all columns values |
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480 if may also only use 1 argument, which will then be current col value. |
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481 the callable must return a string |
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482 if it's unicode, it will be used with .format and must countain u'{}' which will be replaced with the string |
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483 if not None, must have same number of columns as data |
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484 @param use_buffer(bool): if True, bufferise output instead of printing it directly |
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485 """ |
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486 self.host = host |
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487 self._buffer = [] if use_buffer else None |
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488 # headers are columns names/titles, can be None |
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489 self.headers = headers |
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490 # sizes fof columns without headers, |
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491 # headers may be larger |
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492 self.sizes = [] |
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493 # rows countains one list per row with columns values |
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494 self.rows = [] |
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495 |
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496 size = None |
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497 if headers: |
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498 row_cls = namedtuple("RowData", headers) |
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499 else: |
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500 row_cls = tuple |
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501 |
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502 for row_data in data: |
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503 new_row = [] |
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504 row_data_list = list(row_data) |
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505 for idx, value in enumerate(row_data_list): |
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506 if filters is not None and filters[idx] is not None: |
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507 filter_ = filters[idx] |
| 3028 | 508 if isinstance(filter_, str): |
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509 col_value = filter_.format(value) |
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510 else: |
|
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511 try: |
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512 col_value = filter_(value, row_cls(*row_data_list)) |
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513 except TypeError: |
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514 col_value = filter_(value) |
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515 # we count size without ANSI code as they will change length of the string |
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516 # when it's mostly style/color changes. |
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517 col_size = len(regex.ansiRemove(col_value)) |
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518 else: |
| 3028 | 519 col_value = str(value) |
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520 col_size = len(col_value) |
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521 new_row.append(col_value) |
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522 if size is None: |
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523 self.sizes.append(col_size) |
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524 else: |
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525 self.sizes[idx] = max(self.sizes[idx], col_size) |
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526 if size is None: |
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527 size = len(new_row) |
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528 if headers is not None and len(headers) != size: |
| 3028 | 529 raise exceptions.DataError("headers size is not coherent with rows") |
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530 else: |
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531 if len(new_row) != size: |
| 3028 | 532 raise exceptions.DataError("rows size is not coherent") |
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533 self.rows.append(new_row) |
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534 |
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535 if not data and headers is not None: |
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536 # the table is empty, we print headers at their lenght |
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537 self.sizes = [len(h) for h in headers] |
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538 |
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539 @property |
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540 def string(self): |
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541 if self._buffer is None: |
| 3028 | 542 raise exceptions.InternalError("buffer must be used to get a string") |
| 543 return "\n".join(self._buffer) | |
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544 |
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545 @staticmethod |
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546 def readDictValues(data, keys, defaults=None): |
|
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547 if defaults is None: |
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548 defaults = {} |
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549 for key in keys: |
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550 try: |
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551 yield data[key] |
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552 except KeyError as e: |
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553 default = defaults.get(key) |
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554 if default is not None: |
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555 yield default |
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556 else: |
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557 raise e |
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558 |
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559 @classmethod |
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560 def fromDict(cls, host, data, keys=None, headers=None, filters=None, defaults=None): |
|
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561 """Prepare a table to display it |
|
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562 |
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563 the whole data will be read and kept into memory, |
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564 to be printed |
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565 @param data(list[dict[unicode, unicode]]): data to create the table from |
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566 @param keys(iterable[unicode], None): keys to get |
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567 if None, all keys will be used |
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568 @param headers(iterable[unicode], None): name of the columns |
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569 names must be in same order as keys |
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570 @param filters(dict[unicode, (callable,unicode)), None): filter to use on values |
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571 keys correspond to keys to filter, and value is the same as for Table.__init__ |
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572 @param defaults(dict[unicode, unicode]): default value to use |
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573 if None, an exception will be raised if not value is found |
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574 """ |
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575 if keys is None and headers is not None: |
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576 # FIXME: keys are not needed with OrderedDict, |
| 3028 | 577 raise exceptions.DataError("You must specify keys order to used headers") |
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578 if keys is None: |
| 3028 | 579 keys = list(data[0].keys()) |
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580 if headers is None: |
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581 headers = keys |
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582 filters = [filters.get(k) for k in keys] |
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583 return cls( |
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584 host, (cls.readDictValues(d, keys, defaults) for d in data), headers, filters |
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585 ) |
|
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586 |
| 3028 | 587 def _headers(self, head_sep, headers, sizes, alignment="left", style=None): |
|
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588 """Render headers |
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589 |
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590 @param head_sep(unicode): sequence to use as separator |
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591 @param alignment(unicode): how to align, can be left, center or right |
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592 @param style(unicode, iterable[unicode], None): ANSI escape sequences to apply |
|
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593 @param headers(list[unicode]): headers to show |
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594 @param sizes(list[int]): sizes of columns |
|
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595 """ |
|
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596 rendered_headers = [] |
| 3028 | 597 if isinstance(style, str): |
|
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598 style = [style] |
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599 for idx, header in enumerate(headers): |
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600 size = sizes[idx] |
| 3028 | 601 if alignment == "left": |
|
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602 rendered = header[:size].ljust(size) |
| 3028 | 603 elif alignment == "center": |
|
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604 rendered = header[:size].center(size) |
| 3028 | 605 elif alignment == "right": |
|
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606 rendered = header[:size].rjust(size) |
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607 else: |
| 3028 | 608 raise exceptions.InternalError("bad alignment argument") |
|
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609 if style: |
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610 args = style + [rendered] |
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611 rendered = A.color(*args) |
|
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612 rendered_headers.append(rendered) |
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613 return head_sep.join(rendered_headers) |
|
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614 |
|
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615 def _disp(self, data): |
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616 """output data (can be either bufferised or printed)""" |
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617 if self._buffer is not None: |
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618 self._buffer.append(data) |
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619 else: |
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620 self.host.disp(data) |
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621 |
|
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622 def display( |
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623 self, |
| 3028 | 624 head_alignment="left", |
| 625 columns_alignment="left", | |
|
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626 head_style=None, |
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627 show_header=True, |
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628 show_borders=True, |
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629 hide_cols=None, |
| 3028 | 630 col_sep=" │ ", |
| 631 top_left="┌", | |
| 632 top="─", | |
| 633 top_sep="─┬─", | |
| 634 top_right="┐", | |
| 635 left="│", | |
|
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636 right=None, |
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637 head_sep=None, |
| 3028 | 638 head_line="┄", |
| 639 head_line_left="├", | |
| 640 head_line_sep="┄┼┄", | |
| 641 head_line_right="┤", | |
| 642 bottom_left="└", | |
|
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643 bottom=None, |
| 3028 | 644 bottom_sep="─┴─", |
| 645 bottom_right="┘", | |
|
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646 ): |
|
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647 """Print the table |
|
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648 |
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649 @param show_header(bool): True if header need no be shown |
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650 @param show_borders(bool): True if borders need no be shown |
|
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651 @param hide_cols(None, iterable(unicode)): columns which should not be displayed |
|
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652 @param head_alignment(unicode): how to align headers, can be left, center or right |
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653 @param columns_alignment(unicode): how to align columns, can be left, center or right |
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654 @param col_sep(unicode): separator betweens columns |
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655 @param head_line(unicode): character to use to make line under head |
|
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656 @param disp(callable, None): method to use to display the table |
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657 None to use self.host.disp |
|
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658 """ |
|
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659 if not self.sizes: |
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660 # the table is empty |
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661 return |
|
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662 col_sep_size = len(regex.ansiRemove(col_sep)) |
|
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663 |
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664 # if we have columns to hide, we remove them from headers and size |
|
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665 if not hide_cols: |
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666 headers = self.headers |
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667 sizes = self.sizes |
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668 else: |
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669 headers = list(self.headers) |
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670 sizes = self.sizes[:] |
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671 ignore_idx = [headers.index(to_hide) for to_hide in hide_cols] |
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672 for to_hide in hide_cols: |
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673 hide_idx = headers.index(to_hide) |
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674 del headers[hide_idx] |
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675 del sizes[hide_idx] |
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676 |
|
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677 if right is None: |
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678 right = left |
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679 if top_sep is None: |
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680 top_sep = col_sep_size * top |
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681 if head_sep is None: |
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682 head_sep = col_sep |
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683 if bottom is None: |
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684 bottom = top |
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685 if bottom_sep is None: |
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686 bottom_sep = col_sep_size * bottom |
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687 if not show_borders: |
| 3028 | 688 left = right = head_line_left = head_line_right = "" |
|
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689 # top border |
|
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690 if show_borders: |
|
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691 self._disp( |
|
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692 top_left + top_sep.join([top * size for size in sizes]) + top_right |
|
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693 ) |
|
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694 |
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695 # headers |
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696 if show_header: |
|
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697 self._disp( |
|
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698 left |
|
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699 + self._headers(head_sep, headers, sizes, head_alignment, head_style) |
|
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700 + right |
|
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701 ) |
|
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702 # header line |
|
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|
703 self._disp( |
|
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704 head_line_left |
|
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705 + head_line_sep.join([head_line * size for size in sizes]) |
|
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|
706 + head_line_right |
|
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707 ) |
|
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|
708 |
|
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|
709 # content |
| 3028 | 710 if columns_alignment == "left": |
|
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711 alignment = lambda idx, s: ansi_ljust(s, sizes[idx]) |
| 3028 | 712 elif columns_alignment == "center": |
|
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713 alignment = lambda idx, s: ansi_center(s, sizes[idx]) |
| 3028 | 714 elif columns_alignment == "right": |
|
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715 alignment = lambda idx, s: ansi_rjust(s, sizes[idx]) |
|
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716 else: |
| 3028 | 717 raise exceptions.InternalError("bad columns alignment argument") |
|
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|
718 |
|
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|
719 for row in self.rows: |
|
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|
720 if hide_cols: |
|
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721 row = [v for idx, v in enumerate(row) if idx not in ignore_idx] |
|
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|
722 self._disp( |
|
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|
723 left |
|
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|
724 + col_sep.join([alignment(idx, c) for idx, c in enumerate(row)]) |
|
56f94936df1e
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|
725 + right |
|
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|
726 ) |
|
2298
276e546b7619
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changeset
|
727 |
|
276e546b7619
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changeset
|
728 if show_borders: |
|
276e546b7619
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|
729 # bottom border |
|
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|
730 self._disp( |
|
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|
731 bottom_left |
|
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|
732 + bottom_sep.join([bottom * size for size in sizes]) |
|
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|
733 + bottom_right |
|
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734 ) |
|
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|
735 # we return self so string can be used after display (table.display().string) |
|
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|
736 return self |
|
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|
737 |
|
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|
738 def display_blank(self, **kwargs): |
|
276e546b7619
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|
739 """Display table without visible borders""" |
| 3028 | 740 kwargs_ = {"col_sep": " ", "head_line_sep": " ", "show_borders": False} |
|
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|
741 kwargs_.update(kwargs) |
|
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742 return self.display(**kwargs_) |
|
2551
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|
743 |
|
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|
744 |
| 3040 | 745 async def fill_well_known_uri(command, path, key, meta_map=None): |
| 746 """Look for URIs in well-known location and fill appropriate args if suitable | |
| 747 | |
| 748 @param command(CommandBase): command instance | |
| 749 args of this instance will be updated with found values | |
| 750 @param path(unicode): absolute path to use as a starting point to look for URIs | |
| 751 @param key(unicode): key to look for | |
| 752 @param meta_map(dict, None): if not None, map metadata to arg name | |
| 753 key is metadata used attribute name | |
| 754 value is name to actually use, or None to ignore | |
| 755 use empty dict to only retrieve URI | |
| 756 possible keys are currently: | |
| 757 - labels | |
| 758 """ | |
| 759 args = command.args | |
| 760 if args.service or args.node: | |
| 761 # we only look for URIs if a service and a node are not already specified | |
| 762 return | |
| 763 | |
| 764 host = command.host | |
|
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changeset
|
765 |
| 3040 | 766 try: |
| 767 uris_data = await host.bridge.URIFind(path, [key]) | |
| 768 except Exception as e: | |
| 769 host.disp(f"can't find {key} URI: {e}", error=True) | |
| 770 host.quit(C.EXIT_BRIDGE_ERRBACK) | |
|
2551
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diff
changeset
|
771 |
| 3040 | 772 try: |
| 773 uri_data = uris_data[key] | |
| 774 except KeyError: | |
| 775 host.disp( | |
| 776 _(f"No {key} URI specified for this project, please specify service and " | |
| 777 f"node"), | |
| 778 error=True, | |
| 779 ) | |
| 780 host.quit(C.EXIT_NOT_FOUND) | |
|
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changeset
|
781 |
| 3040 | 782 uri = uri_data["uri"] |
| 783 | |
| 784 # set extra metadata if they are specified | |
| 785 for data_key in ['labels']: | |
| 786 new_values_json = uri_data.get(data_key) | |
|
2558
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changeset
|
787 if uri_data is not None: |
| 3040 | 788 if meta_map is None: |
| 789 dest = data_key | |
|
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changeset
|
790 else: |
| 3040 | 791 dest = meta_map.get(data_key) |
|
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|
792 if dest is None: |
| 3040 | 793 continue |
|
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changeset
|
794 |
|
501b0f827f63
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changeset
|
795 try: |
| 3040 | 796 values = getattr(args, data_key) |
|
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changeset
|
797 except AttributeError: |
| 3040 | 798 raise exceptions.InternalError(f'there is no {data_key!r} arguments') |
|
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|
799 else: |
|
501b0f827f63
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changeset
|
800 if values is None: |
|
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|
801 values = [] |
|
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|
802 values.extend(json.loads(new_values_json)) |
| 3040 | 803 setattr(args, dest, values) |
|
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changeset
|
804 |
| 3040 | 805 parsed_uri = xmpp_uri.parseXMPPUri(uri) |
| 806 try: | |
| 807 args.service = parsed_uri["path"] | |
| 808 args.node = parsed_uri["node"] | |
| 809 except KeyError: | |
| 810 host.disp(_(f"Invalid URI found: {uri}"), error=True) | |
| 811 host.quit(C.EXIT_DATA_ERROR) |