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convert/svn: do not try converting empty head revisions (issue3347)...
convert/svn: do not try converting empty head revisions (issue3347) Subversion conversion works by picking trunk and branches heads, computing a revision graph from them and converting the selected commits. By design we fail to convert empty revisions so we have to be careful when discovering the revision graph. In this particular issue, the source svn repository was a partial mirror made by svnsync. The funny part is svnsync preserves all revisions including empty ones. Also, we trusted ra.stat(path, stop).created_rev to give us the latest revision with changes in path history up to stop. This assumption broke at least when path is '', that is the repository root, which always returned 'stop' revision despited being empty. The workaround is to first trust ra.stat() but if the returned revision appear empty, search the whole path history from stop to r1 until some changes are found.
Patrick Mezard - - Load All Authors

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r16466:c53a49c3 stable
r16466:c53a49c3 stable
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empty.svndump
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svn:date
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2012-04-18T11:35:14.752409Z
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svn:sync-from-url
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file:///Users/pmezard/dev/hg/hg-pmezard/tests/svn/temp/svn-repo/trunk/dir
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svn:sync-from-uuid
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2012-04-18T11:35:14.769622Z
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init projA
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