Mercurial > hg
annotate tests/test-largefiles-small-disk.t @ 23976:344939126579 stable
largefiles: don't interfere with logging normal files
The previous code was adding standin files to the matcher's file list when
neither the standin file nor the original existed in the context. Somehow, this
was confusing the logging code into behaving differently from when the extension
wasn't loaded.
It seems that this was an attempt to support naming a directory that only
contains largefiles, as a test fails if the else clause is dropped entirely.
Therefore, only append the "standin" if it is a directory. This was found by
running the test suite with --config extensions.largefiles=.
The first added test used to log an additional cset that wasn't logged normally.
The only relation it had to file 'a' is that 'a' was the source of a move, but
it isn't clear why having '.hglf/a' in the list causes this change:
@@ -47,6 +47,11 @@
Make sure largefiles doesn't interfere with logging a regular file
$ hg log a --config extensions.largefiles=
+ changeset: 3:2ca5ba701980
+ user: test
+ date: Thu Jan 01 00:00:04 1970 +0000
+ summary: d
+
changeset: 0:9161b9aeaf16
user: test
date: Thu Jan 01 00:00:01 1970 +0000
The second added test used to complain about a file not being in the parent
revision:
@@ -1638,10 +1643,8 @@
Ensure that largefiles doesn't intefere with following a normal file
$ hg --config extensions.largefiles= log -f d -T '{desc}' -G
- @ c
- |
- o a
-
+ abort: cannot follow file not in parent revision: ".hglf/d"
+ [255]
$ hg log -f d/a -T '{desc}' -G
@ c
|
Note that there is still something fishy with the largefiles code, because when
using a glob pattern like this:
$ hg log 'glob:sub/*'
the pattern list would contain '.hglf/glob:sub/*'. None of the tests show this
(this test lives in test-largefiles.t at 1349), it was just something that I
noticed when the code was loaded up with print statements.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Fri, 30 Jan 2015 20:44:11 -0500 |
parents | 8a021cd38719 |
children | 7356e6b1f5b8 |
rev | line source |
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largefiles: write .hg/largefiles/ files atomically
Martin Geisler <mg@aragost.com>
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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 > def copyfileobj(fsrc, fdst, length=16*1024): |
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9 > fdst.write(fsrc.read(4)) |
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10 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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11 > shutil.copyfileobj = copyfileobj |
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12 > # |
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13 > # this makes the rewritten code abort: |
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14 > def filechunkiter(f, size=65536, limit=None): |
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15 > yield f.read(4) |
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16 > raise IOError(errno.ENOSPC, os.strerror(errno.ENOSPC)) |
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17 > util.filechunkiter = filechunkiter |
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18 > # |
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19 > def oslink(src, dest): |
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20 > raise OSError("no hardlinks, try copying instead") |
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21 > util.oslink = oslink |
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22 > EOF |
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23 |
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24 $ echo "[extensions]" >> $HGRCPATH |
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25 $ echo "largefiles =" >> $HGRCPATH |
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26 |
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27 $ hg init alice |
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28 $ cd alice |
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29 $ echo "this is a very big file" > big |
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30 $ hg add --large big |
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31 $ hg commit --config extensions.criple=$TESTTMP/criple.py -m big |
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32 abort: No space left on device |
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33 [255] |
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34 |
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35 The largefile is not created in .hg/largefiles: |
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36 |
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37 $ ls .hg/largefiles |
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38 dirstate |
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39 |
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40 The user cache is not even created: |
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41 |
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42 >>> import os; os.path.exists("$HOME/.cache/largefiles/") |
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43 False |
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44 |
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45 Make the commit with space on the device: |
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46 |
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47 $ hg commit -m big |
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48 |
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49 Now make a clone with a full disk, and make sure lfutil.link function |
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50 makes copies instead of hardlinks: |
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51 |
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52 $ cd .. |
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53 $ hg --config extensions.criple=$TESTTMP/criple.py clone --pull alice bob |
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54 requesting all changes |
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55 adding changesets |
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56 adding manifests |
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57 adding file changes |
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58 added 1 changesets with 1 changes to 1 files |
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59 updating to branch default |
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60 getting changed largefiles |
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61 abort: No space left on device |
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62 [255] |
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63 |
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64 The largefile is not created in .hg/largefiles: |
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65 |
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66 $ ls bob/.hg/largefiles |
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67 dirstate |