hg_delta_editor: register copies only if files are unchanged between source and dest Handle copies of items from revision X into revision Y where X is not the parent of Y. This cannot happen in Mercurial because copies always happen between parents and children. A file copy is recorded if: 1- Source and destination revs are in the same branch. 2- The file is unchanged (content, type, removal) through all revisions between destination and source, not including source and destination. Directory copies are registered only if the previous rules apply on all copied items. [1] is there because file copies across branches are meaningless in Mercurial world. We could have tried to remap the source rev to a similar one in the correct branch, but anyway the intent is wrong. [2] is more questionable but I think it's better this way for we live in a non-perfect svn world. In theory, 99% of copies out there should come from the direct parent. But the direct parent is a fuzzy notion when you can have a working directory composed of different directory at different revisions. So we assume that stuff copied from past revisions exactly matching the content of the direct parent revision is really copied from the parent revision. The alternative would be to discard the copy, which would always happen unless people kept updating the working directory after every commit (see tests).

SVN-fs-dump-format-version: 2

UUID: df2126f7-00ab-4d49-b42c-7e981dde0bcf

Revision-number: 0
Prop-content-length: 56
Content-length: 56

K 8
svn:date
V 27
2008-10-07T22:49:12.059692Z
PROPS-END

Revision-number: 1
Prop-content-length: 111
Content-length: 111

K 7
svn:log
V 11
Empty dirs.
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-07T22:49:41.118037Z
PROPS-END

Node-path: branches
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Node-path: tags
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Node-path: trunk
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Revision-number: 2
Prop-content-length: 108
Content-length: 108

K 7
svn:log
V 9
Add alpha
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-07T23:23:02.991743Z
PROPS-END

Node-path: trunk/alpha
Node-kind: file
Node-action: add
Prop-content-length: 10
Text-content-length: 12
Text-content-md5: 3c72ebf8bbd7fa88b1fdcee5398b5a17
Content-length: 22

PROPS-END
file: alpha