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annotate tests/fixtures/unrelatedbranch.sh @ 1550:67b28d657f62

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sqliterevmap: break ".hashes()" cycle in a safer way The `fromsvn()` revset implementation could cause weakref error when using sqliterevmap like: File "hgsubversion/util.py", line 357, in <lambda> return subset.filter(lambda r: tonode(r) in hashes) File "hgsubversion/maps.py", line 542, in __contains__ return self.get(key) != None File "hgsubversion/maps.py", line 533, in get for row in self.revmap._query( ReferenceError: weakly-referenced object no longer exists Basically the seemingly harmless assignment could break surprisingly: # dangerous: `hashes` does not have a reference of `meta.revmap` and may # become unavailable after `meta`, `revmap` being released by refcount. hashes = meta.revmap.hashes() The above syntax is nice to support while avoiding cycles is also nice. This patch removes `revmap._hashes` so the revmap no longer owns a reference of a `ReverseRevMap` object so the `ReverseRevMap` object no longer needs to use weakref for `self.revmap`. This could actually be caught by `comprehensive/test_sqlite_revmap.py`. I was not careful enough verifying the "fromsvn()" patch.
author Jun Wu <quark@fb.com>
date Thu, 21 Dec 2017 17:39:52 -0800
parents ea65fe2b0856
children
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1 #!/bin/sh
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2 #
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3 # Generate unrelatedbranch.svndump
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4 #
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5
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6 mkdir temp
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7 cd temp
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8
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9 mkdir project-orig
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10 cd project-orig
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11 mkdir trunk
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12 mkdir branches
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13 cd ..
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14
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15 svnadmin create testrepo
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16 svnurl=file://`pwd`/testrepo
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17 svn import project-orig $svnurl -m "init project"
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18
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19 svn co $svnurl project
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20 cd project/trunk
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21 echo a > a
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22 svn add a
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23 svn ci -m "add a in trunk"
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24 cd ../branches
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25 # Create an unrelated branch with another file. It used to lead the converter
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26 # to think branch1 was a copy of trunk, even without copy information.
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27 mkdir branch1
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28 echo b > branch1/b
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29 svn add branch1
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30 svn ci -m "add b in branch1"
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31 # Make a real branch too for comparison
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32 svn cp ../trunk branch2
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33 echo b > branch2/b
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34 svn add branch2/b
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35 svn ci -m "add b to branch2"
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36 # Add a file in the branch root for fun
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37 echo c > c
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38 svn add c
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39 svn ci -m "add c in branches/"
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40 # Even update it
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41 echo c >> c
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42 svn ci -m "change c"
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43 cd ../..
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44
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45 svnadmin dump testrepo > ../unrelatedbranch.svndump