Mercurial > libervia-backend
annotate sat_frontends/jp/common.py @ 3791:c61233f51b86
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 17 Jun 2022 14:15:23 +0200 |
| parents | 742e466fa000 |
| children | 524856bd7b19 |
| rev | line source |
|---|---|
| 3137 | 1 #!/usr/bin/env python3 |
| 2 | |
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3 |
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4 # jp: a SàT command line tool |
| 3479 | 5 # Copyright (C) 2009-2021 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 | |
| 3121 | 27 import re |
| 3040 | 28 from pathlib import Path |
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29 from sat_frontends.jp.constants import Const as C |
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30 from sat.core.i18n import _ |
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31 from sat.core import exceptions |
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32 from sat.tools.common import regex |
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33 from sat.tools.common.ansi import ANSI as A |
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34 from sat.tools.common import uri as xmpp_uri |
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35 from sat.tools import config |
| 3028 | 36 from configparser import NoSectionError, NoOptionError |
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37 from collections import namedtuple |
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38 |
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39 # default arguments used for some known editors (editing with metadata) |
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40 VIM_SPLIT_ARGS = "-c 'set nospr|vsplit|wincmd w|next|wincmd w'" |
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41 EMACS_SPLIT_ARGS = '--eval "(split-window-horizontally)"' |
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42 EDITOR_ARGS_MAGIC = { |
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43 "vim": VIM_SPLIT_ARGS + " {content_file} {metadata_file}", |
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44 "nvim": VIM_SPLIT_ARGS + " {content_file} {metadata_file}", |
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45 "gvim": VIM_SPLIT_ARGS + " --nofork {content_file} {metadata_file}", |
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46 "emacs": EMACS_SPLIT_ARGS + " {content_file} {metadata_file}", |
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47 "xemacs": EMACS_SPLIT_ARGS + " {content_file} {metadata_file}", |
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48 "nano": " -F {content_file} {metadata_file}", |
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49 } |
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50 |
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51 SECURE_UNLINK_MAX = 10 |
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52 SECURE_UNLINK_DIR = ".backup" |
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53 METADATA_SUFF = "_metadata.json" |
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54 |
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55 |
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56 def format_time(timestamp): |
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57 """Return formatted date for timestamp |
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58 |
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59 @param timestamp(str,int,float): unix timestamp |
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60 @return (unicode): formatted date |
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61 """ |
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62 fmt = "%d/%m/%Y %H:%M:%S %Z" |
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63 return time.strftime(fmt, time.localtime(float(timestamp))) |
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64 |
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65 |
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66 def ansi_ljust(s, width): |
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67 """ljust method handling ANSI escape codes""" |
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68 cleaned = regex.ansiRemove(s) |
| 3028 | 69 return s + " " * (width - len(cleaned)) |
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70 |
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71 |
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72 def ansi_center(s, width): |
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73 """ljust method handling ANSI escape codes""" |
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74 cleaned = regex.ansiRemove(s) |
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75 diff = width - len(cleaned) |
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76 half = diff / 2 |
| 3028 | 77 return half * " " + s + (half + diff % 2) * " " |
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78 |
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79 |
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80 def ansi_rjust(s, width): |
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81 """ljust method handling ANSI escape codes""" |
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82 cleaned = regex.ansiRemove(s) |
| 3028 | 83 return " " * (width - len(cleaned)) + s |
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84 |
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85 |
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86 def getTmpDir(sat_conf, cat_dir, sub_dir=None): |
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87 """Return directory used to store temporary files |
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88 |
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89 @param sat_conf(ConfigParser.ConfigParser): instance opened on sat configuration |
| 3040 | 90 @param cat_dir(str): directory of the category (e.g. "blog") |
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91 @param sub_dir(str): sub directory where data need to be put |
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92 profile can be used here, or special directory name |
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93 sub_dir will be escaped to be usable in path (use regex.pathUnescape to find |
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94 initial str) |
| 3040 | 95 @return (Path): path to the dir |
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96 """ |
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97 local_dir = config.getConfig(sat_conf, "", "local_dir", Exception) |
| 3040 | 98 path_elts = [local_dir, cat_dir] |
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99 if sub_dir is not None: |
| 3040 | 100 path_elts.append(regex.pathEscape(sub_dir)) |
| 101 return Path(*path_elts) | |
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102 |
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103 |
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104 def parse_args(host, cmd_line, **format_kw): |
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105 """Parse command arguments |
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106 |
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107 @param cmd_line(unicode): command line as found in sat.conf |
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108 @param format_kw: keywords used for formating |
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109 @return (list(unicode)): list of arguments to pass to subprocess function |
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110 """ |
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111 try: |
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112 # we split the arguments and add the known fields |
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113 # we split arguments first to avoid escaping issues in file names |
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114 return [a.format(**format_kw) for a in shlex.split(cmd_line)] |
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115 except ValueError as e: |
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116 host.disp( |
| 3028 | 117 "Couldn't parse editor cmd [{cmd}]: {reason}".format(cmd=cmd_line, reason=e) |
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118 ) |
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119 return [] |
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120 |
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121 |
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122 class BaseEdit(object): |
| 3028 | 123 """base class for editing commands |
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124 |
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125 This class allows to edit file for PubSub or something else. |
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126 It works with temporary files in SàT local_dir, in a "cat_dir" subdir |
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127 """ |
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128 |
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129 def __init__(self, host, cat_dir, use_metadata=False): |
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130 """ |
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131 @param sat_conf(ConfigParser.ConfigParser): instance opened on sat configuration |
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132 @param cat_dir(unicode): directory to use for drafts |
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133 this will be a sub-directory of SàT's local_dir |
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134 @param use_metadata(bool): True is edition need a second file for metadata |
| 3040 | 135 most of signature change with use_metadata with an additional metadata |
| 136 argument. | |
| 137 This is done to raise error if a command needs metadata but forget the flag, | |
| 138 and vice versa | |
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139 """ |
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140 self.host = host |
| 3040 | 141 self.cat_dir = cat_dir |
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142 self.use_metadata = use_metadata |
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143 |
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144 def secureUnlink(self, path): |
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145 """Unlink given path after keeping it for a while |
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146 |
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147 This method is used to prevent accidental deletion of a draft |
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148 If there are more file in SECURE_UNLINK_DIR than SECURE_UNLINK_MAX, |
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149 older file are deleted |
| 3040 | 150 @param path(Path, str): file to unlink |
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151 """ |
| 3040 | 152 path = Path(path).resolve() |
| 153 if not path.is_file: | |
| 3028 | 154 raise OSError("path must link to a regular file") |
| 3040 | 155 if path.parent != getTmpDir(self.sat_conf, self.cat_dir): |
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156 self.disp( |
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157 f"File {path} is not in SàT temporary hierarchy, we do not remove " f"it", |
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158 2, |
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159 ) |
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160 return |
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161 # we have 2 files per draft with use_metadata, so we double max |
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162 unlink_max = SECURE_UNLINK_MAX * 2 if self.use_metadata else SECURE_UNLINK_MAX |
| 3040 | 163 backup_dir = getTmpDir(self.sat_conf, self.cat_dir, SECURE_UNLINK_DIR) |
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164 if not os.path.exists(backup_dir): |
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165 os.makedirs(backup_dir) |
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166 filename = os.path.basename(path) |
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167 backup_path = os.path.join(backup_dir, filename) |
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168 # we move file to backup dir |
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169 self.host.disp( |
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170 "Backuping file {src} to {dst}".format(src=path, dst=backup_path), |
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171 1, |
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172 ) |
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173 os.rename(path, backup_path) |
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174 # and if we exceeded the limit, we remove older file |
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175 backup_files = [os.path.join(backup_dir, f) for f in os.listdir(backup_dir)] |
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176 if len(backup_files) > unlink_max: |
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177 backup_files.sort(key=lambda path: os.stat(path).st_mtime) |
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178 for path in backup_files[: len(backup_files) - unlink_max]: |
| 3028 | 179 self.host.disp("Purging backup file {}".format(path), 2) |
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180 os.unlink(path) |
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181 |
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182 async def runEditor( |
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183 self, |
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184 editor_args_opt, |
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185 content_file_path, |
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186 content_file_obj, |
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187 meta_file_path=None, |
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188 meta_ori=None, |
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189 ): |
| 3040 | 190 """Run editor to edit content and metadata |
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191 |
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192 @param editor_args_opt(unicode): option in [jp] section in configuration for |
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193 specific args |
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194 @param content_file_path(str): path to the content file |
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195 @param content_file_obj(file): opened file instance |
| 3040 | 196 @param meta_file_path(str, Path, None): metadata file path |
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197 if None metadata will not be used |
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198 @param meta_ori(dict, None): original cotent of metadata |
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199 can't be used if use_metadata is False |
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200 """ |
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201 if not self.use_metadata: |
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202 assert meta_file_path is None |
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203 assert meta_ori is None |
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204 |
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205 # we calculate hashes to check for modifications |
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206 import hashlib |
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207 |
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208 content_file_obj.seek(0) |
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209 tmp_ori_hash = hashlib.sha1(content_file_obj.read()).digest() |
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210 content_file_obj.close() |
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211 |
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212 # we prepare arguments |
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213 editor = config.getConfig(self.sat_conf, C.CONFIG_SECTION, "editor") or os.getenv( |
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214 "EDITOR", "vi" |
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215 ) |
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216 try: |
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217 # is there custom arguments in sat.conf ? |
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218 editor_args = config.getConfig( |
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219 self.sat_conf, C.CONFIG_SECTION, editor_args_opt, Exception |
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220 ) |
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221 except (NoOptionError, NoSectionError): |
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222 # no, we check if we know the editor and have special arguments |
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223 if self.use_metadata: |
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224 editor_args = EDITOR_ARGS_MAGIC.get(os.path.basename(editor), "") |
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225 else: |
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226 editor_args = "" |
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227 parse_kwargs = {"content_file": content_file_path} |
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228 if self.use_metadata: |
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229 parse_kwargs["metadata_file"] = meta_file_path |
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230 args = parse_args(self.host, editor_args, **parse_kwargs) |
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231 if not args: |
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232 args = [content_file_path] |
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233 |
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234 # actual editing |
| 3040 | 235 editor_process = await asyncio.create_subprocess_exec( |
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236 editor, *[str(a) for a in args] |
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237 ) |
| 3040 | 238 editor_exit = await editor_process.wait() |
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239 |
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240 # edition will now be checked, and data will be sent if it was a success |
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241 if editor_exit != 0: |
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242 self.disp( |
| 3040 | 243 f"Editor exited with an error code, so temporary file has not be " |
| 244 f"deleted, and item is not published.\nYou can find temporary file " | |
| 245 f"at {content_file_path}", | |
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246 error=True, |
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247 ) |
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248 else: |
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249 # main content |
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250 try: |
| 3040 | 251 with content_file_path.open("rb") as f: |
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252 content = f.read() |
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253 except (OSError, IOError): |
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254 self.disp( |
| 3040 | 255 f"Can read file at {content_file_path}, have it been deleted?\n" |
| 256 f"Cancelling edition", | |
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257 error=True, |
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258 ) |
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259 self.host.quit(C.EXIT_NOT_FOUND) |
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260 |
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261 # metadata |
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262 if self.use_metadata: |
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263 try: |
| 3040 | 264 with meta_file_path.open("rb") as f: |
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265 metadata = json.load(f) |
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266 except (OSError, IOError): |
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267 self.disp( |
| 3040 | 268 f"Can read file at {meta_file_path}, have it been deleted?\n" |
| 269 f"Cancelling edition", | |
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270 error=True, |
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271 ) |
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272 self.host.quit(C.EXIT_NOT_FOUND) |
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273 except ValueError: |
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274 self.disp( |
| 3040 | 275 f"Can't parse metadata, please check it is correct JSON format. " |
| 276 f"Cancelling edition.\nYou can find tmp file at " | |
| 277 f"{content_file_path} and temporary meta file at " | |
| 278 f"{meta_file_path}.", | |
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279 error=True, |
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280 ) |
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281 self.host.quit(C.EXIT_DATA_ERROR) |
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282 |
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283 if self.use_metadata and not metadata.get("publish", True): |
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284 self.disp( |
| 3040 | 285 f'Publication blocked by "publish" key in metadata, cancelling ' |
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286 f"edition.\n\ntemporary file path:\t{content_file_path}\nmetadata " |
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287 f"file path:\t{meta_file_path}", |
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288 error=True, |
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289 ) |
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290 self.host.quit() |
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291 |
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292 if len(content) == 0: |
| 3028 | 293 self.disp("Content is empty, cancelling the edition") |
| 3040 | 294 if content_file_path.parent != getTmpDir(self.sat_conf, self.cat_dir): |
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295 self.disp( |
| 3028 | 296 "File are not in SàT temporary hierarchy, we do not remove them", |
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297 2, |
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298 ) |
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299 self.host.quit() |
| 3040 | 300 self.disp(f"Deletion of {content_file_path}", 2) |
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301 os.unlink(content_file_path) |
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302 if self.use_metadata: |
| 3040 | 303 self.disp(f"Deletion of {meta_file_path}".format(meta_file_path), 2) |
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304 os.unlink(meta_file_path) |
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305 self.host.quit() |
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306 |
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307 # time to re-check the hash |
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308 elif tmp_ori_hash == hashlib.sha1(content).digest() and ( |
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309 not self.use_metadata or meta_ori == metadata |
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310 ): |
| 3028 | 311 self.disp("The content has not been modified, cancelling the edition") |
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312 self.host.quit() |
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313 |
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314 else: |
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315 # we can now send the item |
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316 content = content.decode("utf-8-sig") # we use utf-8-sig to avoid BOM |
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317 try: |
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318 if self.use_metadata: |
| 3040 | 319 await self.publish(content, metadata) |
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320 else: |
| 3040 | 321 await self.publish(content) |
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322 except Exception as e: |
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323 if self.use_metadata: |
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324 self.disp( |
| 3040 | 325 f"Error while sending your item, the temporary files have " |
| 326 f"been kept at {content_file_path} and {meta_file_path}: " | |
| 327 f"{e}", | |
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328 error=True, |
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329 ) |
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330 else: |
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331 self.disp( |
| 3040 | 332 f"Error while sending your item, the temporary file has been " |
| 333 f"kept at {content_file_path}: {e}", | |
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334 error=True, |
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335 ) |
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336 self.host.quit(1) |
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337 |
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338 self.secureUnlink(content_file_path) |
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339 if self.use_metadata: |
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340 self.secureUnlink(meta_file_path) |
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341 |
| 3040 | 342 async def publish(self, content): |
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343 # if metadata is needed, publish will be called with it last argument |
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344 raise NotImplementedError |
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345 |
|
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346 def getTmpFile(self): |
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347 """Create a temporary file |
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348 |
| 3040 | 349 @return (tuple(file, Path)): opened (w+b) file object and file path |
|
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350 """ |
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351 suff = "." + self.getTmpSuff() |
| 3040 | 352 cat_dir_str = self.cat_dir |
| 353 tmp_dir = getTmpDir(self.sat_conf, self.cat_dir, self.profile) | |
| 354 if not tmp_dir.exists(): | |
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355 try: |
| 3040 | 356 tmp_dir.mkdir(parents=True) |
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357 except OSError as e: |
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358 self.disp( |
| 3040 | 359 f"Can't create {tmp_dir} directory: {e}", |
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360 error=True, |
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361 ) |
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362 self.host.quit(1) |
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363 try: |
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364 fd, path = tempfile.mkstemp( |
| 3040 | 365 suffix=suff, |
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366 prefix=time.strftime(cat_dir_str + "_%Y-%m-%d_%H:%M:%S_"), |
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367 dir=tmp_dir, |
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368 text=True, |
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369 ) |
| 3040 | 370 return os.fdopen(fd, "w+b"), Path(path) |
|
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371 except OSError as e: |
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372 self.disp(f"Can't create temporary file: {e}", error=True) |
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373 self.host.quit(1) |
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374 |
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375 def getCurrentFile(self, profile): |
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376 """Get most recently edited file |
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377 |
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378 @param profile(unicode): profile linked to the draft |
| 3040 | 379 @return(Path): full path of current file |
|
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380 """ |
|
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381 # we guess the item currently edited by choosing |
|
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382 # the most recent file corresponding to temp file pattern |
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383 # in tmp_dir, excluding metadata files |
| 3040 | 384 tmp_dir = getTmpDir(self.sat_conf, self.cat_dir, profile) |
|
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385 available = [ |
| 3040 | 386 p |
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387 for p in tmp_dir.glob(f"{self.cat_dir}_*") |
| 3040 | 388 if not p.match(f"*{METADATA_SUFF}") |
|
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389 ] |
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390 if not available: |
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391 self.disp( |
| 3040 | 392 f"Could not find any content draft in {tmp_dir}", |
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393 error=True, |
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394 ) |
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395 self.host.quit(1) |
| 3040 | 396 return max(available, key=lambda p: p.stat().st_mtime) |
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397 |
| 3040 | 398 async def getItemData(self, service, node, item): |
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399 """return formatted content, metadata (or not if use_metadata is false), and item id""" |
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400 raise NotImplementedError |
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401 |
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402 def getTmpSuff(self): |
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403 """return suffix used for content file""" |
| 3028 | 404 return "xml" |
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405 |
| 3040 | 406 async def getItemPath(self): |
| 407 """Retrieve item path (i.e. service and node) from item argument | |
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408 |
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409 This method is obviously only useful for edition of PubSub based features |
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410 """ |
| 2532 | 411 service = self.args.service |
| 412 node = self.args.node | |
| 413 item = self.args.item | |
| 414 last_item = self.args.last_item | |
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415 |
| 2532 | 416 if self.args.current: |
| 417 # user wants to continue current draft | |
| 418 content_file_path = self.getCurrentFile(self.profile) | |
| 3028 | 419 self.disp("Continuing edition of current draft", 2) |
| 3040 | 420 content_file_obj = content_file_path.open("r+b") |
| 2532 | 421 # we seek at the end of file in case of an item already exist |
| 422 # this will write content of the existing item at the end of the draft. | |
| 423 # This way no data should be lost. | |
| 424 content_file_obj.seek(0, os.SEEK_END) | |
| 425 elif self.args.draft_path: | |
| 426 # there is an existing draft that we use | |
| 3040 | 427 content_file_path = self.args.draft_path.expanduser() |
| 428 content_file_obj = content_file_path.open("r+b") | |
| 2532 | 429 # we seek at the end for the same reason as above |
| 430 content_file_obj.seek(0, os.SEEK_END) | |
| 431 else: | |
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432 # we need a temporary file |
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433 content_file_obj, content_file_path = self.getTmpFile() |
| 2532 | 434 |
| 435 if item or last_item: | |
| 3028 | 436 self.disp("Editing requested published item", 2) |
| 2532 | 437 try: |
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438 if self.use_metadata: |
| 3040 | 439 content, metadata, item = await self.getItemData(service, node, item) |
| 2532 | 440 else: |
| 3040 | 441 content, item = await self.getItemData(service, node, item) |
| 2532 | 442 except Exception as e: |
| 443 # FIXME: ugly but we have not good may to check errors in bridge | |
| 3028 | 444 if "item-not-found" in str(e): |
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445 # item doesn't exist, we create a new one with requested id |
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446 metadata = None |
| 2532 | 447 if last_item: |
| 3028 | 448 self.disp(_("no item found at all, we create a new one"), 2) |
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449 else: |
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450 self.disp( |
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451 _( |
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452 'item "{item}" not found, we create a new item with' |
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453 "this id" |
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454 ).format(item=item), |
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455 2, |
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456 ) |
| 2532 | 457 content_file_obj.seek(0) |
| 458 else: | |
| 3040 | 459 self.disp(f"Error while retrieving item: {e}") |
| 2532 | 460 self.host.quit(C.EXIT_ERROR) |
| 461 else: | |
| 462 # item exists, we write content | |
| 463 if content_file_obj.tell() != 0: | |
| 464 # we already have a draft, | |
| 465 # we copy item content after it and add an indicator | |
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466 content_file_obj.write("\n*****\n") |
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467 content_file_obj.write(content.encode("utf-8")) |
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468 content_file_obj.seek(0) |
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469 self.disp(_('item "{item}" found, we edit it').format(item=item), 2) |
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470 else: |
| 3028 | 471 self.disp("Editing a new item", 2) |
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472 if self.use_metadata: |
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473 metadata = None |
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474 |
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475 if self.use_metadata: |
| 2532 | 476 return service, node, item, content_file_path, content_file_obj, metadata |
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477 else: |
| 2532 | 478 return service, node, item, content_file_path, content_file_obj |
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479 |
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480 |
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481 class Table(object): |
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482 def __init__(self, host, data, headers=None, filters=None, use_buffer=False): |
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483 """ |
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484 @param data(iterable[list]): table data |
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485 all lines must have the same number of columns |
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486 @param headers(iterable[unicode], None): names/titles of the columns |
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487 if not None, must have same number of columns as data |
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488 @param filters(iterable[(callable, unicode)], None): values filters |
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489 the callable will get 2 arguments: |
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490 - current column value |
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491 - RowData with all columns values |
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492 if may also only use 1 argument, which will then be current col value. |
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493 the callable must return a string |
| 3121 | 494 if it's unicode, it will be used with .format and must countain u'{}' which |
| 495 will be replaced with the string. | |
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496 if not None, must have same number of columns as data |
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497 @param use_buffer(bool): if True, bufferise output instead of printing it directly |
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498 """ |
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499 self.host = host |
|
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500 self._buffer = [] if use_buffer else None |
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501 # headers are columns names/titles, can be None |
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502 self.headers = headers |
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503 # sizes fof columns without headers, |
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504 # headers may be larger |
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505 self.sizes = [] |
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506 # rows countains one list per row with columns values |
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507 self.rows = [] |
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508 |
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509 size = None |
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510 if headers: |
| 3121 | 511 # we use a namedtuple to make the value easily accessible from filters |
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512 headers_safe = [re.sub(r"[^a-zA-Z_]", "_", h) for h in headers] |
| 3121 | 513 row_cls = namedtuple("RowData", headers_safe) |
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514 else: |
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515 row_cls = tuple |
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516 |
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517 for row_data in data: |
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518 new_row = [] |
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519 row_data_list = list(row_data) |
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520 for idx, value in enumerate(row_data_list): |
|
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521 if filters is not None and filters[idx] is not None: |
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522 filter_ = filters[idx] |
| 3028 | 523 if isinstance(filter_, str): |
|
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524 col_value = filter_.format(value) |
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525 else: |
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526 try: |
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527 col_value = filter_(value, row_cls(*row_data_list)) |
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528 except TypeError: |
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529 col_value = filter_(value) |
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530 # we count size without ANSI code as they will change length of the |
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531 # string when it's mostly style/color changes. |
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532 col_size = len(regex.ansiRemove(col_value)) |
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533 else: |
| 3028 | 534 col_value = str(value) |
|
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535 col_size = len(col_value) |
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536 new_row.append(col_value) |
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537 if size is None: |
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538 self.sizes.append(col_size) |
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539 else: |
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540 self.sizes[idx] = max(self.sizes[idx], col_size) |
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541 if size is None: |
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542 size = len(new_row) |
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543 if headers is not None and len(headers) != size: |
| 3028 | 544 raise exceptions.DataError("headers size is not coherent with rows") |
|
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545 else: |
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546 if len(new_row) != size: |
| 3028 | 547 raise exceptions.DataError("rows size is not coherent") |
|
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548 self.rows.append(new_row) |
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549 |
|
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550 if not data and headers is not None: |
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551 # the table is empty, we print headers at their lenght |
|
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552 self.sizes = [len(h) for h in headers] |
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553 |
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554 @property |
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555 def string(self): |
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556 if self._buffer is None: |
| 3028 | 557 raise exceptions.InternalError("buffer must be used to get a string") |
| 558 return "\n".join(self._buffer) | |
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559 |
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560 @staticmethod |
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561 def readDictValues(data, keys, defaults=None): |
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562 if defaults is None: |
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563 defaults = {} |
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564 for key in keys: |
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565 try: |
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566 yield data[key] |
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567 except KeyError as e: |
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568 default = defaults.get(key) |
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569 if default is not None: |
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570 yield default |
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571 else: |
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572 raise e |
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573 |
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574 @classmethod |
| 3121 | 575 def fromListDict( |
|
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576 cls, host, data, keys=None, headers=None, filters=None, defaults=None |
|
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577 ): |
| 3121 | 578 """Create a table from a list of dictionaries |
|
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579 |
| 3121 | 580 each dictionary is a row of the table, keys being columns names. |
| 581 the whole data will be read and kept into memory, to be printed | |
|
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582 @param data(list[dict[unicode, unicode]]): data to create the table from |
|
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583 @param keys(iterable[unicode], None): keys to get |
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584 if None, all keys will be used |
|
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585 @param headers(iterable[unicode], None): name of the columns |
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586 names must be in same order as keys |
|
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587 @param filters(dict[unicode, (callable,unicode)), None): filter to use on values |
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588 keys correspond to keys to filter, and value is the same as for Table.__init__ |
|
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589 @param defaults(dict[unicode, unicode]): default value to use |
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590 if None, an exception will be raised if not value is found |
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591 """ |
|
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592 if keys is None and headers is not None: |
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593 # FIXME: keys are not needed with OrderedDict, |
| 3028 | 594 raise exceptions.DataError("You must specify keys order to used headers") |
|
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595 if keys is None: |
| 3028 | 596 keys = list(data[0].keys()) |
|
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597 if headers is None: |
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598 headers = keys |
| 3121 | 599 if filters is None: |
| 600 filters = {} | |
|
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601 filters = [filters.get(k) for k in keys] |
|
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602 return cls( |
|
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603 host, (cls.readDictValues(d, keys, defaults) for d in data), headers, filters |
|
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604 ) |
|
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|
605 |
| 3028 | 606 def _headers(self, head_sep, headers, sizes, alignment="left", style=None): |
|
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607 """Render headers |
|
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608 |
|
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|
609 @param head_sep(unicode): sequence to use as separator |
|
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610 @param alignment(unicode): how to align, can be left, center or right |
|
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611 @param style(unicode, iterable[unicode], None): ANSI escape sequences to apply |
|
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612 @param headers(list[unicode]): headers to show |
|
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613 @param sizes(list[int]): sizes of columns |
|
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|
614 """ |
|
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|
615 rendered_headers = [] |
| 3028 | 616 if isinstance(style, str): |
|
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|
617 style = [style] |
|
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618 for idx, header in enumerate(headers): |
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|
619 size = sizes[idx] |
| 3028 | 620 if alignment == "left": |
|
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|
621 rendered = header[:size].ljust(size) |
| 3028 | 622 elif alignment == "center": |
|
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|
623 rendered = header[:size].center(size) |
| 3028 | 624 elif alignment == "right": |
|
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625 rendered = header[:size].rjust(size) |
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626 else: |
| 3028 | 627 raise exceptions.InternalError("bad alignment argument") |
|
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628 if style: |
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629 args = style + [rendered] |
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630 rendered = A.color(*args) |
|
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631 rendered_headers.append(rendered) |
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632 return head_sep.join(rendered_headers) |
|
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|
633 |
|
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|
634 def _disp(self, data): |
|
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635 """output data (can be either bufferised or printed)""" |
|
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636 if self._buffer is not None: |
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637 self._buffer.append(data) |
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638 else: |
|
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|
639 self.host.disp(data) |
|
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|
640 |
|
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|
641 def display( |
|
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|
642 self, |
| 3028 | 643 head_alignment="left", |
| 644 columns_alignment="left", | |
|
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645 head_style=None, |
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646 show_header=True, |
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647 show_borders=True, |
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648 hide_cols=None, |
| 3028 | 649 col_sep=" │ ", |
| 650 top_left="┌", | |
| 651 top="─", | |
| 652 top_sep="─┬─", | |
| 653 top_right="┐", | |
| 654 left="│", | |
|
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|
655 right=None, |
|
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|
656 head_sep=None, |
| 3028 | 657 head_line="┄", |
| 658 head_line_left="├", | |
| 659 head_line_sep="┄┼┄", | |
| 660 head_line_right="┤", | |
| 661 bottom_left="└", | |
|
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662 bottom=None, |
| 3028 | 663 bottom_sep="─┴─", |
| 664 bottom_right="┘", | |
|
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|
665 ): |
|
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|
666 """Print the table |
|
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|
667 |
|
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668 @param show_header(bool): True if header need no be shown |
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669 @param show_borders(bool): True if borders need no be shown |
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670 @param hide_cols(None, iterable(unicode)): columns which should not be displayed |
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671 @param head_alignment(unicode): how to align headers, can be left, center or right |
| 3121 | 672 @param columns_alignment(unicode): how to align columns, can be left, center or |
| 673 right | |
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674 @param col_sep(unicode): separator betweens columns |
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675 @param head_line(unicode): character to use to make line under head |
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676 @param disp(callable, None): method to use to display the table |
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677 None to use self.host.disp |
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678 """ |
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679 if not self.sizes: |
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680 # the table is empty |
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681 return |
|
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682 col_sep_size = len(regex.ansiRemove(col_sep)) |
|
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683 |
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684 # if we have columns to hide, we remove them from headers and size |
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685 if not hide_cols: |
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686 headers = self.headers |
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687 sizes = self.sizes |
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688 else: |
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689 headers = list(self.headers) |
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690 sizes = self.sizes[:] |
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691 ignore_idx = [headers.index(to_hide) for to_hide in hide_cols] |
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692 for to_hide in hide_cols: |
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693 hide_idx = headers.index(to_hide) |
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694 del headers[hide_idx] |
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695 del sizes[hide_idx] |
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696 |
|
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697 if right is None: |
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698 right = left |
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699 if top_sep is None: |
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700 top_sep = col_sep_size * top |
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701 if head_sep is None: |
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702 head_sep = col_sep |
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703 if bottom is None: |
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704 bottom = top |
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705 if bottom_sep is None: |
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706 bottom_sep = col_sep_size * bottom |
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|
707 if not show_borders: |
| 3028 | 708 left = right = head_line_left = head_line_right = "" |
|
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|
709 # top border |
|
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|
710 if show_borders: |
|
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|
711 self._disp( |
|
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712 top_left + top_sep.join([top * size for size in sizes]) + top_right |
|
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713 ) |
|
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|
714 |
|
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|
715 # headers |
| 3121 | 716 if show_header and self.headers is not None: |
|
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|
717 self._disp( |
|
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|
718 left |
|
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|
719 + self._headers(head_sep, headers, sizes, head_alignment, head_style) |
|
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|
720 + right |
|
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|
721 ) |
|
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|
722 # header line |
|
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|
723 self._disp( |
|
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|
724 head_line_left |
|
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725 + head_line_sep.join([head_line * size for size in sizes]) |
|
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|
726 + head_line_right |
|
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|
727 ) |
|
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|
728 |
|
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|
729 # content |
| 3028 | 730 if columns_alignment == "left": |
|
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|
731 alignment = lambda idx, s: ansi_ljust(s, sizes[idx]) |
| 3028 | 732 elif columns_alignment == "center": |
|
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|
733 alignment = lambda idx, s: ansi_center(s, sizes[idx]) |
| 3028 | 734 elif columns_alignment == "right": |
|
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|
735 alignment = lambda idx, s: ansi_rjust(s, sizes[idx]) |
|
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|
736 else: |
| 3028 | 737 raise exceptions.InternalError("bad columns alignment argument") |
|
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|
738 |
|
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|
739 for row in self.rows: |
|
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|
740 if hide_cols: |
|
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|
741 row = [v for idx, v in enumerate(row) if idx not in ignore_idx] |
|
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|
742 self._disp( |
|
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|
743 left |
|
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|
744 + col_sep.join([alignment(idx, c) for idx, c in enumerate(row)]) |
|
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|
745 + right |
|
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|
746 ) |
|
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|
747 |
|
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|
748 if show_borders: |
|
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|
749 # bottom border |
|
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|
750 self._disp( |
|
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|
751 bottom_left |
|
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|
752 + bottom_sep.join([bottom * size for size in sizes]) |
|
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|
753 + bottom_right |
|
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|
754 ) |
|
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|
755 # we return self so string can be used after display (table.display().string) |
|
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|
756 return self |
|
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|
757 |
|
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|
758 def display_blank(self, **kwargs): |
|
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|
759 """Display table without visible borders""" |
| 3028 | 760 kwargs_ = {"col_sep": " ", "head_line_sep": " ", "show_borders": False} |
|
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|
761 kwargs_.update(kwargs) |
|
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|
762 return self.display(**kwargs_) |
|
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changeset
|
763 |
|
b27165bf160c
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changeset
|
764 |
| 3040 | 765 async def fill_well_known_uri(command, path, key, meta_map=None): |
| 766 """Look for URIs in well-known location and fill appropriate args if suitable | |
| 767 | |
| 768 @param command(CommandBase): command instance | |
| 769 args of this instance will be updated with found values | |
| 770 @param path(unicode): absolute path to use as a starting point to look for URIs | |
| 771 @param key(unicode): key to look for | |
| 772 @param meta_map(dict, None): if not None, map metadata to arg name | |
| 773 key is metadata used attribute name | |
| 774 value is name to actually use, or None to ignore | |
| 775 use empty dict to only retrieve URI | |
| 776 possible keys are currently: | |
| 777 - labels | |
| 778 """ | |
| 779 args = command.args | |
| 780 if args.service or args.node: | |
| 781 # we only look for URIs if a service and a node are not already specified | |
| 782 return | |
| 783 | |
| 784 host = command.host | |
|
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|
785 |
| 3040 | 786 try: |
| 787 uris_data = await host.bridge.URIFind(path, [key]) | |
| 788 except Exception as e: | |
| 789 host.disp(f"can't find {key} URI: {e}", error=True) | |
| 790 host.quit(C.EXIT_BRIDGE_ERRBACK) | |
|
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|
791 |
| 3040 | 792 try: |
| 793 uri_data = uris_data[key] | |
| 794 except KeyError: | |
| 795 host.disp( | |
|
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|
796 _( |
|
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|
797 "No {key} URI specified for this project, please specify service and " |
|
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|
798 "node" |
|
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|
799 ).format(key=key), |
| 3040 | 800 error=True, |
| 801 ) | |
| 802 host.quit(C.EXIT_NOT_FOUND) | |
|
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803 |
| 3040 | 804 uri = uri_data["uri"] |
| 805 | |
| 806 # set extra metadata if they are specified | |
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807 for data_key in ["labels"]: |
| 3040 | 808 new_values_json = uri_data.get(data_key) |
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809 if uri_data is not None: |
| 3040 | 810 if meta_map is None: |
| 811 dest = data_key | |
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812 else: |
| 3040 | 813 dest = meta_map.get(data_key) |
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814 if dest is None: |
| 3040 | 815 continue |
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parents:
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816 |
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parents:
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817 try: |
| 3040 | 818 values = getattr(args, data_key) |
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819 except AttributeError: |
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parents:
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820 raise exceptions.InternalError(f"there is no {data_key!r} arguments") |
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parents:
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821 else: |
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Goffi <goffi@goffi.org>
parents:
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822 if values is None: |
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parents:
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823 values = [] |
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parents:
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824 values.extend(json.loads(new_values_json)) |
| 3040 | 825 setattr(args, dest, values) |
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parents:
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826 |
| 3040 | 827 parsed_uri = xmpp_uri.parseXMPPUri(uri) |
| 828 try: | |
| 829 args.service = parsed_uri["path"] | |
| 830 args.node = parsed_uri["node"] | |
| 831 except KeyError: | |
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parents:
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832 host.disp(_("Invalid URI found: {uri}").format(uri=uri), error=True) |
| 3040 | 833 host.quit(C.EXIT_DATA_ERROR) |