Re: svn - but smaller?

On CTM,

On Jan 27, 2013, at 10:54 PM, Stephen Montgomery-Smith wrote:
> On 01/27/2013 09:24 PM, Isaac (.ike) Levy wrote:
>> On Jan 24, 2013, at 6:13 AM, Peter Jeremy wrote:
>>> On 2013-Jan-23 15:40:50 +0100, Oliver Brandmueller <ob@e-Gitt.NET> wrot=
e:
>>>> in ancient times there was cvsup.
>> =

>> Thank you for adding the ctm bits in the page, I'm deeply intrigued by p=
ossibly solving this problem with bits *already* in base?!!
....
>> - does CTM go away with the CVS servers?
>> - do CTM-compatable patch/delta files exist on project repos?
>> - what is the cleanest path to using CTM? (e.g. is the patch you mention=
 required)
....
>> Say I have a bare 9.1 install, no ports, haven't downloaded any base/src=
 or ports yet.
>> How do I go about using ctm(1) to fetch REL or STABLE to /usr/src, comma=
nd by command?
> =

> First, you don't need any patches to get started.
> =

> Suppose you want to keep up with 9.x-stable.  Then you look at the ftp
> site ftp://ftp.freebsd.org/pub/FreeBSD/CTM/src-9/, look at the latest
> xEmpty file, and fetch it.  Then create an empty directory /usr/src, and
> then do
> cd /usr/src && ctm the-xEmpty-file-you-downloaded.
> No need to decompress the file first.
> Then fetch from the same web site all the files whose number is greater
> than the xEmpty file you downloaded and do
> cd /usr/src && ctm the-rest-of-the-files*
> =

> Now in /usr/src, you will have a reasonably up to date version of
> 9.x-stable.
> =

> You can keep it up to date by getting more files, either from the ftp
> site, or by email, and doing again
> cd /usr/src && ctm the-rest-of-the-files*
> It will automatically ignore the files already applied.
> =

> Similar instructions for all the other stable/currents and ports.  Main
> thing to remember - start with an empty directory.
> =

> Also making local changes is not permitted.  If ctm tries to modify a
> file whose md5 checksum has changed, it will quit with an error message.
> (But it won't leave your system in an unusable state - if you put that
> file back to its original state, then ctm will work again.)
> =

> Now, if you want something not offered by ctm (e.g. 8.2-release), then
> you need to use svn.  You can get svn via ctm.  But you (1) need to
> apply the patch, (2) install the svn port, and (3) install the xz port
> if your FreeBSD is really old.

Thank you Stephen, ctm(1) is quite rad, but I see now how it doesn't really=
 replace the 'one-liner' pull of c[v]sup=85

I updated the wiki page with an example from your notes,
https://wiki.freebsd.org/UsersFetchingSource

--
With that, 2 questions:

- I'm wondering if there is a clean/reliable way to pull an index of the CT=
M deltas?  (This is still very far from the one-liner c[v]sup had become, i=
t would be great to check for new delta files in a simple automated manner.)

- does CTM go away with the CVS servers, e.g. who/how is it supported suppo=
rted and maintained going foreword under SVN?

Best,
..ike

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