From: Luke Robison <robison@arlut.utexas.edu>
To: git@vger.kernel.org
Subject: Understanding Binary Deltas within Packfile
Date: Tue, 20 Mar 2018 10:43:50 -0500 [thread overview]
Message-ID: <f301d093-af93-016b-79b9-3102475260cf@arlut.utexas.edu> (raw)
Is there any documentation of the contents of the binary delta datain a
packfile, and how to interpret them? I found
https://github.com/git/git/blob/master/Documentation/technical/pack-format.txt
documenting the packfile itself, but the "compressed delta data" seems
largely undocumented. The source code of
https://github.com/git/git/blob/master/diff-delta.c is pretty dense.
This is what I've got so for:
+-------------+
| Varint src_size
| Varint trg_size
| 1-byte inscnt
| N-bytes up to 16 bytes of trg_buf
|
| A series of Operations
|
+-------------
Any details on how to interpret the opcodes would be greatly appreciated.
Thanks,
Luke
next reply other threads:[~2018-03-20 15:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-20 15:43 Luke Robison [this message]
2018-03-20 16:03 ` Understanding Binary Deltas within Packfile Duy Nguyen
2018-03-20 18:34 ` Luke Robison
2018-03-20 19:12 ` Duy Nguyen
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