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annotate sat_frontends/jp/output_xml.py @ 3019:c9f03b1eb64d

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plugin XEP-0198: catch and log an error if buffer is unexpectedly empty
author Goffi <goffi@goffi.org>
date Sat, 20 Jul 2019 20:55:17 +0200
parents 003b8b4b56a7
children ab2696e34d29
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1 #! /usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # jp: a SàT command line tool
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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 """Standard outputs"""
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20
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21
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22 from sat_frontends.jp.constants import Const as C
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23 from sat.core.i18n import _
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24 from lxml import etree
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25 from sat.core.log import getLogger
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26
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27 log = getLogger(__name__)
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28 import sys
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29
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30 try:
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31 import pygments
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32 from pygments.lexers.html import XmlLexer
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33 from pygments.formatters import TerminalFormatter
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34 except ImportError:
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35 pygments = None
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37
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38 __outputs__ = ["XML"]
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39 RAW = u"xml_raw"
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40 PRETTY = u"xml_pretty"
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43 class XML(object):
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44 """Outputs for XML"""
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46 def __init__(self, host):
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47 self.host = host
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48 host.register_output(C.OUTPUT_XML, PRETTY, self.pretty, default=True)
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49 host.register_output(C.OUTPUT_LIST_XML, PRETTY, self.pretty_list, default=True)
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50 host.register_output(C.OUTPUT_XML, RAW, self.raw)
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51 host.register_output(C.OUTPUT_LIST_XML, RAW, self.list_raw)
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52
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53 def colorize(self, xml):
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54 if pygments is None:
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55 self.host.disp(
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56 _(
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57 u"Pygments is not available, syntax highlighting is not possible. Please install if from http://pygments.org or with pip install pygments"
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58 ),
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59 error=True,
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60 )
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61 return xml
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62 if not sys.stdout.isatty():
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63 return xml
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64 lexer = XmlLexer(encoding="utf-8")
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65 formatter = TerminalFormatter(bg=u"dark")
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66 return pygments.highlight(xml, lexer, formatter)
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67
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68 def format(self, data, pretty=True):
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69 parser = etree.XMLParser(remove_blank_text=True)
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70 tree = etree.fromstring(data, parser)
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71 xml = etree.tostring(tree, encoding="unicode", pretty_print=pretty)
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72 return self.colorize(xml)
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73
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74 def format_no_pretty(self, data):
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75 return self.format(data, pretty=False)
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77 def pretty(self, data):
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78 self.host.disp(self.format(data))
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79
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80 def pretty_list(self, data, separator=u"\n"):
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81 list_pretty = map(self.format, data)
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82 self.host.disp(separator.join(list_pretty))
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83
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84 def raw(self, data):
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85 self.host.disp(self.format_no_pretty(data))
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86
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87 def list_raw(self, data, separator=u"\n"):
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88 list_no_pretty = map(self.format_no_pretty, data)
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89 self.host.disp(separator.join(list_no_pretty))