On 14/01/2015 03:55, Warren Toomey wrote:

On Tue, Jan 13, 2015 at 05:42:56PM -0800, Larry McVoy wrote:

Aren't the SCCS sources for the real history online?  I know Kirk made
them available on his CD, I have them somewhere.

In a previous private e-mail I received from Kirk, he said:
        The folks at UC
        Berkeley have always required me to track distributions of the SCCS
        files as they somehow think of them as still sensitive.

which implies that the SCCS files cannot be released publicly. However,
the SVN version is a "derivative" of the SCCS files and, on that basis,
is publicly available. Go figure :)

Here's another data point: when I asked Kirk regarding the public availability of the SCCS repo he pointed me to http://svnweb.freebsd.org/csrg/.

At https://github.com/dspinellis/unix-history-repo you can find a single 1GB repository that integrates many of the snapshots and version control repositories available through TUHS and other sources (including the CSRG data).  Its commit history starts on Jun 20th 1972 with the First Research Edition and ends with FreeBSD 10 in 2015.  Git blame works across all the history's commits.

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