Mercurial > hg
annotate tests/test-largefiles-small-disk.t @ 32120:8ca9b3add033
cleanup: drop the deprecated 'localrepo.wfile' method
This was deprecated in favor of 'localrepo.wvfs.join'. We can now drop it for the
future 4.3.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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date | Tue, 02 May 2017 02:04:55 +0200 |
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 |