Official git export
Peter Jeremy
peterjeremy at acm.org
Sun Sep 4 08:37:01 UTC 2011
On 2011-Sep-03 05:11:07 -0700, perryh at pluto.rain.com wrote:
>A few hundred MB of disk space is nothing. Having to _download_
>a few hundred MB of source code, that one already has, is _not_
>"nothing" unless one has a rather large pipe.
If you already have the source code, why would you be downloading
it again? Typically, if you keep a local copy of the repo, you
would be checking out from it, rather than using csup or similar.
>One way to mitigate this would be to provide the ability to
>download and install VCS metadata (back-deltas, commit comments,
>etc.) for particular files and directories "as needed".
Based on the description, I'll take "metadata" to mean the VCS
repository itself, rather than VCS-related metadata that is added
to a checked-out working directory.
Whilst this was fairly easy for CVS, it's not practical for SVN
because the metadata is stored per-commit, rather than per-file.
> If that
>level of granularity is problematic, just splitting the metadata
>into 5 groups would help:
>
> group contents size *
>
> infrastructure all files directly in /usr/src; and 66 MB
> subdirs etc, include, lib, libexec,
> release, rescue, share, tools.
>
> contrib /usr/src/contrib 232 MB
>
> crypto /usr/src/{crypto,kerberos5,secure} 40 MB
>
> kernel /usr/src/sys 143 MB
>
> other /usr/src/{bin,cddl,games,gnu, 50 MB
> sbin,usr.bin,usr.sbin}
I don't believe this is practical given the way FreeBSD and SVN
work. From the SVN perspective, it's not practical to disentagle
the content in that way. From a FreeBSD perspective, I don't think
it'll work - you can't do much without "infrastructure". "contrib"
is referenced from "infrastructure" and "other". "crypto" includes
some historic (but not current) references to "contrib".
>For that matter, FreeBSD could provide the VCS metadata corresponding
>to each release as a separate ISO, so those who need it can obtain
>and install it. Those for whom large downloads are a problem could
>buy it on CD.
Once upon a time, the release CDs did include the CVS tree but it
simply became too big. And, since you can checkout any point in
history I don't believe having a -release repo CD/DVD adds any real
value. You just need a copy of the repo after the relevant release -
this can be downloaded via CTM/ftp or csup for CVS and svn can do it's
own downloading. My guess is that most people for whom large
downloads present a problem know someone who has ready access to the
repo and could burn a CD/DVD for them.
--
Peter Jeremy
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