Mercurial > hg
annotate tests/test-largefiles-small-disk.t @ 39548:7ce9dea3a14a
localrepo: move repo creation logic out of localrepository.__init__ (API)
It has long bothered me that local repository creation is handled as
part of localrepository.__init__. Upcoming changes I want to make
around how repositories are initialized and instantiated will make
the continued existence of repository creation code in
localrepository.__init__ even more awkward.
localrepository instances are almost never constructed directly:
instead, callers are supposed to go through hg.repository() to obtain
a handle on a repository. And hg.repository() calls
localrepo.instance() to return a new repo instance.
This commit teaches localrepo.instance() to handle the create=True
logic. Most of the code for repo construction has been moved to a
standalone function. This allows extensions to monkeypatch the function
to further customize freshly-created repositories.
A few calls to localrepo.localrepository.__init__ that were passing
create=True were converted to call localrepo.instance().
.. api:: local repo creation moved out of constructor
``localrepo.localrepository.__init__`` no longer accepts a
``create`` argument to create a new repository. New repository
creation is now performed as part of ``localrepo.instance()``
and the bulk of the work is performed by
``localrepo.createrepository()``.
Differential Revision: https://phab.mercurial-scm.org/D4534
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Tue, 11 Sep 2018 13:46:59 -0700 |
parents | 556984ae0005 |
children | c70bdd222dcd |
rev | line source |
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1 Test how largefiles abort in case the disk runs full |
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2 |
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3 $ cat > criple.py <<EOF |
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4 > from __future__ import absolute_import |
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5 > import errno |
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6 > import os |
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7 > import shutil |
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8 > from mercurial import util |
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9 > # |
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10 > # this makes the original largefiles code abort: |
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11 > _origcopyfileobj = shutil.copyfileobj |
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12 > def copyfileobj(fsrc, fdst, length=16*1024): |
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13 > # allow journal files (used by transaction) to be written |
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14 > if b'journal.' in fdst.name: |
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15 > return _origcopyfileobj(fsrc, fdst, length) |
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16 > fdst.write(fsrc.read(4)) |
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17 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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18 > shutil.copyfileobj = copyfileobj |
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19 > # |
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20 > # this makes the rewritten code abort: |
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21 > def filechunkiter(f, size=131072, limit=None): |
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22 > yield f.read(4) |
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23 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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24 > util.filechunkiter = filechunkiter |
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25 > # |
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26 > def oslink(src, dest): |
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27 > raise OSError("no hardlinks, try copying instead") |
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28 > util.oslink = oslink |
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29 > EOF |
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30 |
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31 $ echo "[extensions]" >> $HGRCPATH |
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32 $ echo "largefiles =" >> $HGRCPATH |
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33 |
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34 $ hg init alice |
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35 $ cd alice |
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36 $ echo "this is a very big file" > big |
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37 $ hg add --large big |
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38 $ hg commit --config extensions.criple=$TESTTMP/criple.py -m big |
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39 abort: No space left on device |
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40 [255] |
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41 |
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42 The largefile is not created in .hg/largefiles: |
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43 |
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44 $ ls .hg/largefiles |
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45 dirstate |
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46 |
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47 The user cache is not even created: |
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48 |
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49 >>> import os; os.path.exists("$HOME/.cache/largefiles/") |
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50 False |
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51 |
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52 Make the commit with space on the device: |
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53 |
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54 $ hg commit -m big |
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55 |
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56 Now make a clone with a full disk, and make sure lfutil.link function |
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57 makes copies instead of hardlinks: |
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58 |
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59 $ cd .. |
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60 $ hg --config extensions.criple=$TESTTMP/criple.py clone --pull alice bob |
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61 requesting all changes |
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62 adding changesets |
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63 adding manifests |
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64 adding file changes |
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65 added 1 changesets with 1 changes to 1 files |
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66 new changesets 390cf214e9ac |
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67 updating to branch default |
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68 getting changed largefiles |
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69 abort: No space left on device |
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70 [255] |
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71 |
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72 The largefile is not created in .hg/largefiles: |
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73 |
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74 $ ls bob/.hg/largefiles |
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75 dirstate |