Mercurial > hg
annotate tests/test-largefiles-small-disk.t @ 50916:98b8836d0e82
hgweb: use sysstr to set attribute on diff option
Attribute identifier should be `str` not `bytes`.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 01 Sep 2023 12:09:54 +0200 |
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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 errno |
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5 > import os |
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6 > import shutil |
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7 > from mercurial import util |
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8 > # |
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9 > # this makes the original largefiles code abort: |
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10 > _origcopyfileobj = shutil.copyfileobj |
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11 > def copyfileobj(fsrc, fdst, length=16 * 1024): |
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12 > # allow journal files (used by transaction) to be written |
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13 > if b'journal.' in fdst.name or b'backup.' in fdst.name: |
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14 > return _origcopyfileobj(fsrc, fdst, length) |
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15 > fdst.write(fsrc.read(4)) |
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16 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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17 > shutil.copyfileobj = copyfileobj |
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18 > # |
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19 > # this makes the rewritten code abort: |
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20 > def filechunkiter(f, size=131072, limit=None): |
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21 > yield f.read(4) |
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22 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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23 > util.filechunkiter = filechunkiter |
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24 > # |
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25 > def oslink(src, dest): |
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26 > raise OSError("no hardlinks, try copying instead") |
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27 > util.oslink = oslink |
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28 > EOF |
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29 |
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30 $ echo "[extensions]" >> $HGRCPATH |
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31 $ echo "largefiles =" >> $HGRCPATH |
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32 |
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33 $ hg init alice |
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34 $ cd alice |
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35 $ echo "this is a very big file" > big |
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36 $ hg add --large big |
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37 $ hg commit --config extensions.criple=$TESTTMP/criple.py -m big |
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38 abort: No space left on device |
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39 [255] |
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40 |
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41 The largefile is not created in .hg/largefiles: |
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42 |
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43 $ ls .hg/largefiles |
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44 dirstate |
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45 |
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46 The user cache is not even created: |
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47 |
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48 >>> import os; os.path.exists("$HOME/.cache/largefiles/") |
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49 False |
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50 |
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51 Make the commit with space on the device: |
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52 |
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53 $ hg commit -m big |
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54 |
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55 Now make a clone with a full disk, and make sure lfutil.link function |
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56 makes copies instead of hardlinks: |
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57 |
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58 $ cd .. |
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59 $ hg --config extensions.criple=$TESTTMP/criple.py clone --pull alice bob |
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60 requesting all changes |
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61 adding changesets |
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62 adding manifests |
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63 adding file changes |
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64 added 1 changesets with 1 changes to 1 files |
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65 new changesets 390cf214e9ac |
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66 updating to branch default |
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67 getting changed largefiles |
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68 abort: No space left on device |
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69 [255] |
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70 |
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71 The largefile is not created in .hg/largefiles: |
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72 |
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73 $ ls bob/.hg/largefiles |
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74 dirstate |