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annotate tests/test-largefiles-small-disk.t @ 33806:dedab036215d

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wireproto: use new peer interface The wirepeer class provides concrete implementations of peer interface methods for calling wire protocol commands. It makes sense for this class to inherit from the peer abstract base class. So we change that. Since httppeer and sshpeer have already been converted to the new interface, peerrepository is no longer adding any value. So it has been removed. httppeer and sshpeer have been updated to reflect the loss of peerrepository and the inheritance of the abstract base class in wirepeer. The code changes in wirepeer are reordering of methods to group by interface. Some Python code in tests was updated to reflect changed APIs. .. api:: peer.peerrepository has been removed. Use repository.peer abstract base class to represent a peer repository. Differential Revision: https://phab.mercurial-scm.org/D338
author Gregory Szorc <gregory.szorc@gmail.com>
date Thu, 10 Aug 2017 20:58:28 -0700
parents 1ef37b16b8e8
children 991134261057
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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 > import os, errno, shutil
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5 > from mercurial import util
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6 > #
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7 > # this makes the original largefiles code abort:
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8 > _origcopyfileobj = shutil.copyfileobj
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9 > def copyfileobj(fsrc, fdst, length=16*1024):
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10 > # allow journal files (used by transaction) to be written
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11 > if 'journal.' in fdst.name:
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12 > return _origcopyfileobj(fsrc, fdst, length)
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13 > fdst.write(fsrc.read(4))
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14 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC))
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15 > shutil.copyfileobj = copyfileobj
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16 > #
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17 > # this makes the rewritten code abort:
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18 > def filechunkiter(f, size=131072, limit=None):
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19 > yield f.read(4)
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20 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC))
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21 > util.filechunkiter = filechunkiter
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22 > #
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23 > def oslink(src, dest):
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24 > raise OSError("no hardlinks, try copying instead")
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25 > util.oslink = oslink
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26 > EOF
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27
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28 $ echo "[extensions]" >> $HGRCPATH
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29 $ echo "largefiles =" >> $HGRCPATH
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30
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31 $ hg init alice
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32 $ cd alice
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33 $ echo "this is a very big file" > big
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34 $ hg add --large big
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35 $ hg commit --config extensions.criple=$TESTTMP/criple.py -m big
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36 abort: No space left on device
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37 [255]
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38
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39 The largefile is not created in .hg/largefiles:
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40
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41 $ ls .hg/largefiles
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42 dirstate
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43
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44 The user cache is not even created:
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45
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46 >>> import os; os.path.exists("$HOME/.cache/largefiles/")
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47 False
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48
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49 Make the commit with space on the device:
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50
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51 $ hg commit -m big
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52
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53 Now make a clone with a full disk, and make sure lfutil.link function
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54 makes copies instead of hardlinks:
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55
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56 $ cd ..
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57 $ hg --config extensions.criple=$TESTTMP/criple.py clone --pull alice bob
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58 requesting all changes
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59 adding changesets
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60 adding manifests
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61 adding file changes
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62 added 1 changesets with 1 changes to 1 files
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63 updating to branch default
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64 getting changed largefiles
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65 abort: No space left on device
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66 [255]
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67
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68 The largefile is not created in .hg/largefiles:
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69
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70 $ ls bob/.hg/largefiles
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71 dirstate