Mercurial > hg
annotate tests/test-patch-offset.t @ 47072:4c041c71ec01
revlog: introduce an explicit tracking of what the revlog is about
Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.
In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.
So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.
The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.
Differential Revision: https://phab.mercurial-scm.org/D10352
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 06 Apr 2021 05:20:24 +0200 |
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1 |
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2 $ cat > writepatterns.py <<EOF |
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3 > import sys |
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4 > |
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5 > path = sys.argv[1] |
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6 > patterns = sys.argv[2:] |
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7 > |
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8 > fp = open(path, 'wb') |
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9 > for pattern in patterns: |
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10 > count = int(pattern[0:-1]) |
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11 > char = pattern[-1].encode('utf8') + b'\n' |
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12 > fp.write(char * count) |
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13 > fp.close() |
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14 > EOF |
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15 |
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16 prepare repo |
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17 |
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18 $ hg init a |
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19 $ cd a |
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20 |
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21 These initial lines of Xs were not in the original file used to generate |
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22 the patch. So all the patch hunks need to be applied to a constant offset |
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23 within this file. If the offset isn't tracked then the hunks can be |
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24 applied to the wrong lines of this file. |
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26 $ "$PYTHON" ../writepatterns.py a 34X 10A 1B 10A 1C 10A 1B 10A 1D 10A 1B 10A 1E 10A 1B 10A |
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27 $ hg commit -Am adda |
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28 adding a |
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30 This is a cleaner patch generated via diff |
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31 In this case it reproduces the problem when |
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32 the output of hg export does not |
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33 import patch |
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34 |
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35 $ hg import -v -m 'b' -d '2 0' - <<EOF |
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36 > --- a/a 2009-12-08 19:26:17.000000000 -0800 |
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37 > +++ b/a 2009-12-08 19:26:17.000000000 -0800 |
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38 > @@ -9,7 +9,7 @@ |
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39 > A |
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40 > A |
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41 > B |
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42 > -A |
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43 > +a |
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44 > A |
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45 > A |
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46 > A |
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47 > @@ -53,7 +53,7 @@ |
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48 > A |
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49 > A |
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50 > B |
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51 > -A |
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52 > +a |
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53 > A |
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54 > A |
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55 > A |
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56 > @@ -75,7 +75,7 @@ |
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57 > A |
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58 > A |
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59 > B |
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60 > -A |
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61 > +a |
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62 > A |
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63 > A |
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64 > A |
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65 > EOF |
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66 applying patch from stdin |
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67 patching file a |
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68 Hunk #1 succeeded at 43 (offset 34 lines). |
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69 Hunk #2 succeeded at 87 (offset 34 lines). |
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70 Hunk #3 succeeded at 109 (offset 34 lines). |
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71 committing files: |
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72 a |
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73 committing manifest |
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74 committing changelog |
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75 created 189885cecb41 |
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76 |
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77 compare imported changes against reference file |
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78 |
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79 $ "$PYTHON" ../writepatterns.py aref 34X 10A 1B 1a 9A 1C 10A 1B 10A 1D 10A 1B 1a 9A 1E 10A 1B 1a 9A |
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80 $ diff aref a |
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81 |
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82 $ cd .. |