Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/test-convert-hg-sink @ 5378:8a2915f57dfc
convert: add a mode where mercurial_sink skips empty revisions.
The getchanges function of some converter_source classes can return
some false positives. I.e. they sometimes claim that a file "foo"
was changed in some revision, even though its contents are still the
same.
convert_svn is particularly bad, but I think this can also happen with
convert_cvs and, at least in theory, with mercurial_source.
For regular conversions this is not really a problem - as long as
getfile returns the right contents, we'll get a converted revision
with the right contents. But when we use --filemap, this could lead
to superfluous revisions being converted.
Instead of fixing every converter_source, I decided to change
mercurial_sink to work around this problem.
When --filemap is used, we're interested only in revisions that touch
some specific files. If a revision doesn't change any of these files,
then we're not interested in it (at least for revisions with a single
parent; merges are special).
For mercurial_sink, we abuse this property and rollback a commit if
the manifest text hasn't changed. This avoids duplicating the logic
from localrepo.filecommit to detect unchanged files.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Thu, 04 Oct 2007 23:21:37 -0300 |
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1 #!/bin/sh |
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2 |
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3 echo "[extensions]" >> $HGRCPATH |
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4 echo "hgext.convert=" >> $HGRCPATH |
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5 |
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6 hg init orig |
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7 cd orig |
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8 echo foo > foo |
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9 echo bar > bar |
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10 hg ci -qAm 'add foo and bar' -d '0 0' |
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11 |
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12 hg rm foo |
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13 hg ci -m 'remove foo' -d '0 0' |
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14 |
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15 mkdir foo |
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16 echo file > foo/file |
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17 hg ci -qAm 'add foo/file' -d '0 0' |
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18 |
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19 hg tag -d '0 0' some-tag |
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20 |
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21 hg log |
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22 cd .. |
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23 |
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24 hg convert orig new 2>&1 | grep -v 'subversion python bindings could not be loaded' |
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25 cd new |
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26 hg out ../orig |
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27 |
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28 echo '% dirstate should be empty:' |
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29 hg debugstate |
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30 hg parents -q |
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31 |
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32 hg up -C |
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33 hg copy bar baz |
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34 echo '% put something in the dirstate:' |
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35 hg debugstate > debugstate |
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36 grep baz debugstate |
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37 |
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38 echo '% add a new revision in the original repo' |
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39 cd ../orig |
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40 echo baz > baz |
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41 hg ci -qAm 'add baz' |
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42 |
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43 cd .. |
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44 hg convert orig new 2>&1 | grep -v 'subversion python bindings could not be loaded' |
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45 cd new |
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46 hg out ../orig |
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47 echo '% dirstate should be the same (no output below):' |
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48 hg debugstate > new-debugstate |
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49 diff debugstate new-debugstate |
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50 |
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51 echo '% no copies' |
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52 hg up -C |
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53 hg debugrename baz |