Mercurial > hg
annotate tests/test-revlog-v2.t @ 42415:c767e655ffda
narrow: use narrow_widen wireproto command to widen in case of ellipses
Few releases ago, we introduce narrow_widen wireproto command to be used to widen
narrow repositories. Before this patch, that was used in non-ellipses cases
only. In ellipses cases, we still do exchange.pull() which can pull more data
than required.
After this patch, the client will first check whether server supports doing
ellipses widening using wireproto command or not by checking server's wireproto
capability. If the server is upto date and support latest ellipses capability,
we call the wireproto command. Otherwise we fallback to exchange.pull() like
before.
The compat code make sure that things works even if one of the client or server
is old. The initial version of this patch does not had this compat code. It's
added to help Google release things smoothly internally. I plan to drop the
compat code before the upcoming major release.
Due to change to wireproto command, the code looks a bit dirty, next patches
will clean that up.
Differential Revision: https://phab.mercurial-scm.org/D6436
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Wed, 22 May 2019 02:59:48 +0530 |
parents | e7a2cc84dbc0 |
children | 15d35f2ba474 |
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1 #require reporevlogstore |
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2 |
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3 A repo with unknown revlogv2 requirement string cannot be opened |
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4 |
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5 $ hg init invalidreq |
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6 $ cd invalidreq |
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7 $ echo exp-revlogv2.unknown >> .hg/requires |
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8 $ hg log |
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9 abort: repository requires features unknown to this Mercurial: exp-revlogv2.unknown! |
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10 (see https://mercurial-scm.org/wiki/MissingRequirement for more information) |
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11 [255] |
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12 $ cd .. |
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13 |
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14 Can create and open repo with revlog v2 requirement |
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15 |
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16 $ cat >> $HGRCPATH << EOF |
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17 > [experimental] |
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18 > revlogv2 = enable-unstable-format-and-corrupt-my-data |
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19 > EOF |
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20 |
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21 $ hg init empty-repo |
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22 $ cd empty-repo |
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23 $ cat .hg/requires |
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24 dotencode |
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25 exp-revlogv2.1 |
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26 fncache |
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27 sparserevlog |
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28 store |
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29 |
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30 $ hg log |
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31 |
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32 Unknown flags to revlog are rejected |
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33 |
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34 >>> with open('.hg/store/00changelog.i', 'wb') as fh: |
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35 ... fh.write(b'\x00\x04\xde\xad') and None |
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36 |
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37 $ hg log |
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38 abort: unknown flags (0x04) in version 57005 revlog 00changelog.i! |
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39 [255] |
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40 |
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41 $ cd .. |
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42 |
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43 Writing a simple revlog v2 works |
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44 |
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45 $ hg init simple |
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46 $ cd simple |
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47 $ touch foo |
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48 $ hg -q commit -A -m initial |
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49 |
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50 $ hg log |
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51 changeset: 0:96ee1d7354c4 |
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52 tag: tip |
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53 user: test |
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54 date: Thu Jan 01 00:00:00 1970 +0000 |
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55 summary: initial |
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56 |
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57 Header written as expected |
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58 |
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59 $ f --hexdump --bytes 4 .hg/store/00changelog.i |
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60 .hg/store/00changelog.i: |
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61 0000: 00 01 de ad |....| |
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62 |
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63 $ f --hexdump --bytes 4 .hg/store/data/foo.i |
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64 .hg/store/data/foo.i: |
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65 0000: 00 01 de ad |....| |