git-commit-vandalism/vcs-svn
Jonathan Nieder c846e41078 vcs-svn: let deltas use data from preimage
The copyfrom_source instruction appends data from the preimage buffer
to the end of output.  Its arguments are a length and an offset
relative to the beginning of the source view.

With this change, the delta applier is able to reproduce all 5,636,613
blobs in the early history of the ASF repository.  Tested with

	mkfifo backflow
	svn-fe <svn-asf-public-r0:940166 3<backflow |
	git fast-import --cat-blob-fd=3 3>backflow

with svn-asf-public-r0:940166 produced by whatever version of
Subversion the dumps in /dump/ on svn.apache.org use (presumably
1.6.something).

Improved-by: Ramkumar Ramachandra <artagnon@gmail.com>
Improved-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Ramkumar Ramachandra <artagnon@gmail.com>
2011-03-28 00:33:48 -05:00
..
fast_export.c vcs-svn: add missing cast to printf argument 2011-03-27 12:21:12 -05:00
fast_export.h vcs-svn: handle log message with embedded NUL 2011-03-26 00:49:37 -05:00
LICENSE vcs-svn: learn to maintain a sliding view of a file 2011-03-27 20:23:32 -05:00
line_buffer.c vcs-svn: make buffer_read_binary API more convenient 2011-03-27 22:37:05 -05:00
line_buffer.h vcs-svn: make buffer_read_binary API more convenient 2011-03-27 22:37:05 -05:00
line_buffer.txt vcs-svn: remove buffer_read_string 2011-03-26 00:17:35 -05:00
obj_pool.h
repo_tree.c vcs-svn: handle log message with embedded NUL 2011-03-26 00:49:37 -05:00
repo_tree.h vcs-svn: handle log message with embedded NUL 2011-03-26 00:49:37 -05:00
sliding_window.c vcs-svn: learn to maintain a sliding view of a file 2011-03-27 20:23:32 -05:00
sliding_window.h vcs-svn: learn to maintain a sliding view of a file 2011-03-27 20:23:32 -05:00
string_pool.c Add string-specific memory pool 2010-08-14 19:35:37 -07:00
string_pool.h Add string-specific memory pool 2010-08-14 19:35:37 -07:00
string_pool.txt Add string-specific memory pool 2010-08-14 19:35:37 -07:00
svndiff.c vcs-svn: let deltas use data from preimage 2011-03-28 00:33:48 -05:00
svndiff.h vcs-svn: skeleton of an svn delta parser 2011-03-27 22:41:38 -05:00
svndump.c vcs-svn: handle log message with embedded NUL 2011-03-26 00:49:37 -05:00
svndump.h vcs-svn: Check for errors from open() 2010-11-24 14:51:42 -08:00
trp.h treap: make treap_insert return inserted node 2010-12-07 16:03:55 -08:00
trp.txt treap: make treap_insert return inserted node 2010-12-07 16:03:55 -08:00