Mercurial > public > mercurial-scm > hg-stable

annotate tests/logexceptions.py @ 39883:3e896b51aa5d

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storageutil: move metadata parsing and packing from revlog (API) Parsing and writing of revision text metadata is likely identical across storage backends. Let's move the code out of revlog so we don't need to import the revlog module in order to use it. Differential Revision: https://phab.mercurial-scm.org/D4754
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 24 Sep 2018 14:31:31 -0700
parents 8de90e006c78
children 2372284d9457
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1 # logexceptions.py - Write files containing info about Mercurial exceptions
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2 #
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3 # Copyright 2017 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import inspect
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11 import os
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12 import sys
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13 import traceback
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14 import uuid
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15
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16 from mercurial import (
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17 dispatch,
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18 extensions,
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19 )
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20
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21 def handleexception(orig, ui):
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22 res = orig(ui)
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23
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24 if not ui.environ.get(b'HGEXCEPTIONSDIR'):
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25 return res
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26
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27 dest = os.path.join(ui.environ[b'HGEXCEPTIONSDIR'],
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28 str(uuid.uuid4()).encode('ascii'))
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29
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30 exc_type, exc_value, exc_tb = sys.exc_info()
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31
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32 stack = []
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33 tb = exc_tb
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34 while tb:
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35 stack.append(tb)
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36 tb = tb.tb_next
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37 stack.reverse()
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38
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39 hgframe = 'unknown'
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40 hgline = 'unknown'
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41
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42 # Find the first Mercurial frame in the stack.
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43 for tb in stack:
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44 mod = inspect.getmodule(tb)
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45 if not mod.__name__.startswith(('hg', 'mercurial')):
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46 continue
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47
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48 frame = tb.tb_frame
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49
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50 try:
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51 with open(inspect.getsourcefile(tb), 'r') as fh:
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52 hgline = fh.readlines()[frame.f_lineno - 1].strip()
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53 except (IndexError, OSError):
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54 pass
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55
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56 hgframe = '%s:%d' % (frame.f_code.co_filename, frame.f_lineno)
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57 break
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58
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59 primary = traceback.extract_tb(exc_tb)[-1]
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60 primaryframe = '%s:%d' % (primary.filename, primary.lineno)
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61
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62 with open(dest, 'wb') as fh:
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63 parts = [
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64 str(exc_value),
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65 primaryframe,
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66 hgframe,
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67 hgline,
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68 ui.environ[b'TESTNAME'].decode('utf-8', 'replace'),
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69 ]
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70 fh.write(b'\0'.join(p.encode('utf-8', 'replace') for p in parts))
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71
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72 def extsetup(ui):
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73 extensions.wrapfunction(dispatch, 'handlecommandexception',
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74 handleexception)