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annotate libervia/cli/output_xml.py @ 4075:47401850dec6

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refactoring: rename `libervia.frontends.jp` to `libervia.cli`
author Goffi <goffi@goffi.org>
date Fri, 02 Jun 2023 14:54:26 +0200
parents libervia/frontends/jp/output_xml.py@26b7ed2817da
children
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1 #! /usr/bin/env python3
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2
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3 # Libervia CLI frontend
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 """Standard outputs"""
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19
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20
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47401850dec6 refactoring: rename `libervia.frontends.jp` to `libervia.cli`
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21 from libervia.cli.constants import Const as C
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22 from libervia.backend.core.i18n import _
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23 from lxml import etree
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24 from libervia.backend.core.log import getLogger
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25
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26 log = getLogger(__name__)
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27 import sys
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28
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29 try:
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30 import pygments
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31 from pygments.lexers.html import XmlLexer
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32 from pygments.formatters import TerminalFormatter
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33 except ImportError:
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34 pygments = None
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37 __outputs__ = ["XML"]
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38
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39
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40 class XML(object):
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41 """Outputs for XML"""
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42
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43 def __init__(self, host):
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44 self.host = host
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45 host.register_output(C.OUTPUT_XML, C.OUTPUT_NAME_XML, self.pretty, default=True)
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46 host.register_output(
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47 C.OUTPUT_LIST_XML, C.OUTPUT_NAME_XML, self.pretty_list, default=True
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48 )
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49 host.register_output(C.OUTPUT_XML, C.OUTPUT_NAME_XML_RAW, self.raw)
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50 host.register_output(C.OUTPUT_LIST_XML, C.OUTPUT_NAME_XML_RAW, self.list_raw)
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51
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52 def colorize(self, xml):
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53 if pygments is None:
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54 self.host.disp(
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55 _(
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56 "Pygments is not available, syntax highlighting is not possible. "
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57 "Please install if from http://pygments.org or with pip install "
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58 "pygments"
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59 ),
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60 error=True,
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61 )
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62 return xml
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63 if not sys.stdout.isatty():
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64 return xml
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65 lexer = XmlLexer(encoding="utf-8")
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66 formatter = TerminalFormatter(bg="dark")
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67 return pygments.highlight(xml, lexer, formatter)
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68
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69 def format(self, data, pretty=True):
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70 parser = etree.XMLParser(remove_blank_text=True)
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71 tree = etree.fromstring(data, parser)
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72 xml = etree.tostring(tree, encoding="unicode", pretty_print=pretty)
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73 return self.colorize(xml)
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74
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75 def format_no_pretty(self, data):
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76 return self.format(data, pretty=False)
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77
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78 def pretty(self, data):
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79 self.host.disp(self.format(data))
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80
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81 def pretty_list(self, data, separator="\n"):
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82 list_pretty = list(map(self.format, data))
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83 self.host.disp(separator.join(list_pretty))
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84
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85 def raw(self, data):
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86 self.host.disp(self.format_no_pretty(data))
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87
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88 def list_raw(self, data, separator="\n"):
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89 list_no_pretty = list(map(self.format_no_pretty, data))
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90 self.host.disp(separator.join(list_no_pretty))