Mercurial > hg > mercurial-crew-with-dirclash
annotate tests/printenv.py @ 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 # simple script to be used in hooks |
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2 # copy it to the current directory when the test starts: |
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3 # |
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4 # cp "$TESTDIR"/printenv.py . |
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5 # |
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6 # put something like this in the repo .hg/hgrc: |
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7 # |
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8 # [hooks] |
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9 # changegroup = python ../printenv.py <hookname> [exit] [output] |
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10 # |
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11 # - <hookname> is a mandatory argument (e.g. "changegroup") |
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12 # - [exit] is the exit code of the hook (default: 0) |
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13 # - [output] is the name of the output file (default: use sys.stdout) |
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14 # the file will be opened in append mode. |
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15 # |
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16 import os |
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17 import sys |
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18 |
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19 exitcode = 0 |
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20 out = sys.stdout |
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21 |
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22 name = sys.argv[1] |
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23 if len(sys.argv) > 2: |
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24 exitcode = int(sys.argv[2]) |
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25 if len(sys.argv) > 3: |
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26 out = open(sys.argv[3], "ab") |
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27 |
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28 # variables with empty values may not exist on all platforms, filter |
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29 # them now for portability sake. |
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30 env = [k for k, v in os.environ.iteritems() |
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31 if k.startswith("HG_") and v] |
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32 env.sort() |
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33 |
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34 # edit the variable part of the variable |
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35 url = os.environ.get("HG_URL", "") |
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36 if url.startswith("file:"): |
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37 os.environ["HG_URL"] = "file:" |
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38 elif url.startswith("remote:http"): |
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39 os.environ["HG_URL"] = "remote:http" |
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40 |
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41 out.write("%s hook: " % name) |
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42 for v in env: |
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43 out.write("%s=%s " % (v, os.environ[v])) |
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44 out.write("\n") |
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45 out.close() |
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46 |
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47 sys.exit(exitcode) |