Mercurial > hg
annotate tests/logexceptions.py @ 44311:2b72c4ff8ed1
nodemap: use an intermediate "docket" file to carry small metadata
This intermediate file will make mmapping, transaction and content validation
easier. (Most of this usefulness will arrive gradually in later changeset). In
particular it will become very useful to append new data are the end of raw file
instead of rewriting on the file on each transaction.
See in code comments for details.
Differential Revision: https://phab.mercurial-scm.org/D7838
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 15 Jan 2020 15:47:50 +0100 |
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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 |
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22 def handleexception(orig, ui): |
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23 res = orig(ui) |
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24 |
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25 if not ui.environ.get(b'HGEXCEPTIONSDIR'): |
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26 return res |
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27 |
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28 dest = os.path.join( |
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29 ui.environ[b'HGEXCEPTIONSDIR'], str(uuid.uuid4()).encode('ascii') |
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30 ) |
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31 |
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32 exc_type, exc_value, exc_tb = sys.exc_info() |
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33 |
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34 stack = [] |
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35 tb = exc_tb |
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36 while tb: |
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37 stack.append(tb) |
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38 tb = tb.tb_next |
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39 stack.reverse() |
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40 |
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41 hgframe = 'unknown' |
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42 hgline = 'unknown' |
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43 |
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44 # Find the first Mercurial frame in the stack. |
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45 for tb in stack: |
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46 mod = inspect.getmodule(tb) |
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47 if not mod.__name__.startswith(('hg', 'mercurial')): |
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48 continue |
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49 |
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50 frame = tb.tb_frame |
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51 |
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52 try: |
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53 with open(inspect.getsourcefile(tb), 'r') as fh: |
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54 hgline = fh.readlines()[frame.f_lineno - 1].strip() |
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55 except (IndexError, OSError): |
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56 pass |
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57 |
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58 hgframe = '%s:%d' % (frame.f_code.co_filename, frame.f_lineno) |
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59 break |
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60 |
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61 primary = traceback.extract_tb(exc_tb)[-1] |
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62 primaryframe = '%s:%d' % (primary.filename, primary.lineno) |
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63 |
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64 with open(dest, 'wb') as fh: |
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65 parts = [ |
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66 str(exc_value), |
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67 primaryframe, |
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68 hgframe, |
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69 hgline, |
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70 ui.environ[b'TESTNAME'].decode('utf-8', 'replace'), |
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71 ] |
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72 fh.write(b'\0'.join(p.encode('utf-8', 'replace') for p in parts)) |
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73 |
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74 |
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75 def extsetup(ui): |
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76 extensions.wrapfunction(dispatch, 'handlecommandexception', handleexception) |