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Date:      Fri, 23 Jan 2015 01:25:41 +1100 (EST)
From:      Ian Smith <smithi@nimnet.asn.au>
To:        Andrew Berg <aberg010@my.hennepintech.edu>
Cc:        Polytropon <freebsd@edvax.de>, freebsd-questions@freebsd.org
Subject:   Re: Request for comments - svnup in base ?
Message-ID:  <20150123001645.Y22179@sola.nimnet.asn.au>
In-Reply-To: <mailman.57.1421668801.42632.freebsd-questions@freebsd.org>
References:  <mailman.57.1421668801.42632.freebsd-questions@freebsd.org>

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In freebsd-questions Digest, Vol 555, Issue 1, Message: 10
On Sun, 18 Jan 2015 12:16:31 -0600 Andrew Berg <aberg010@my.hennepintech.edu> wrote:
 > On 2015.01.18 11:45, Ian Smith wrote:
 > > svnlite only arrived with 10.1, so is not what 8.x and 9.x users need.

 > 10.0, not 10.1. I am a bit surprised that it wasn't backported to 9.3, though.

Hmm, well if that's so, man.cgi hss it wrong; it only shows up when 
selecting 10.1 or 10-stable, not 10.0.  But then, I've found a few odd 
things in man.cgi the last couple of months so I'm not confident I can 
trust it re what versions support various things lately - like this one?

One example; enter 'pkg' with default settings, you get pkg(7) which of 
course has links to pkg(8) - clicking on which meet 'not found' unless 
you select <some version> AND PORTS.  For another, try looking for 'ep'; 
you get nothing unless you know in advance that you have to pick 'i386'; 
I think the 'default' architecture (presumably amd64?) should say 'ANY'.

svn(1) is available as a port for 9.3, but not svnlite(1) .. and I think 
neither deserve their (1) until there's a real 'how to use it' manual.

 > > So just how 'lite' is svnlite?  Could someone running 10.1+ please 
 > > replace svnup with svnlite in equivalents to the following queries:
 > > 
 > > smithi@x200:~ % ll `which svnup`
 > > -r-xr-xr-x  1 root  wheel  47040 Jan 19 01:26 /usr/local/bin/svnup
 > [candace ~]# ls -l $(which svnlite)
 > -r-xr-xr-x  1 root  wheel  3210464 Jan  3 22:26 /usr/bin/svnlite

Yeah, under 1.5% :)

 > > smithi@x200:~ % ldd `which svnup`
 > > /usr/local/bin/svnup:
 > >         libmd.so.5 => /lib/libmd.so.5 (0x800824000)
 > >         libssl.so.6 => /usr/lib/libssl.so.6 (0x800a34000)
 > >         libc.so.7 => /lib/libc.so.7 (0x800c8a000)
 > >         libcrypto.so.6 => /lib/libcrypto.so.6 (0x800fe5000)
 > [candace ~]# ldd $(which svnlite)
 > /usr/bin/svnlite:
 >         libbsdxml.so.4 => /lib/libbsdxml.so.4 (0x800b29000)
 >         libz.so.6 => /lib/libz.so.6 (0x800d50000)
 >         libcrypt.so.5 => /lib/libcrypt.so.5 (0x800f66000)
 >         libmagic.so.4 => /usr/lib/libmagic.so.4 (0x801186000)
 >         libcrypto.so.7 => /lib/libcrypto.so.7 (0x8013a4000)
 >         libssl.so.7 => /usr/lib/libssl.so.7 (0x801798000)
 >         libthr.so.3 => /lib/libthr.so.3 (0x801a03000)
 >         libc.so.7 => /lib/libc.so.7 (0x801c28000)

In both cases, pretty standard libraries.

 > > smithi@x200:~ % ll /lib/libmd.so.5 /usr/lib/libssl.so.6 /lib/libc.so.7 /lib/libcrypto.so.6
 > > -r--r--r--  1 root  wheel  1407536 Jun 25  2014 /lib/libc.so.7
 > > -r--r--r--  1 root  wheel  1748528 Jun 25  2014 /lib/libcrypto.so.6
 > > -r--r--r--  1 root  wheel    69072 Jun 25  2014 /lib/libmd.so.5
 > > -r--r--r--  1 root  wheel   355576 Jun 25  2014 /usr/lib/libssl.so.6
 > [candace ~]# ls -l /lib/libbsdxml.so.4 /lib/libz.so.6 /lib/libcrypt.so.5
 > /usr/lib/libmagic.so.4 /lib/libcrypto.so.7 /usr/lib/libssl.so.7
 > /lib/libthr.so.3 /lib/libc.so.7
 > -r--r--r--  1 root  wheel   161760 Jan  3 22:25 /lib/libbsdxml.so.4
 > -r--r--r--  1 root  wheel  1647720 Jan  3 22:25 /lib/libc.so.7
 > -r--r--r--  1 root  wheel    62008 Jan  3 22:25 /lib/libcrypt.so.5
 > -r--r--r--  1 root  wheel  2038496 Jan  3 22:26 /lib/libcrypto.so.7
 > -r--r--r--  1 root  wheel   106120 Jan  3 22:25 /lib/libthr.so.3
 > -r--r--r--  1 root  wheel    89576 Jan  3 22:25 /lib/libz.so.6
 > -r--r--r--  1 root  wheel   123976 Jan  3 22:25 /usr/lib/libmagic.so.4
 > -r--r--r--  1 root  wheel   439776 Jan  3 22:26 /usr/lib/libssl.so.7

My, how things have grown between 9.3 and 10.1.  But that's not so much 
extra, I guess working out the size of svnlite's installed dependencies 
would be more revealing.  I haven't a 10.x system to check, and I'm not
assuming it carries most of svn's load, but svnup(1) has none at all.

 > > smithi@x200:~ % du -hd0 /usr/src
 > > 830M    /usr/src
 > > smithi@x200:~ % du -hd0 /usr/ports
 > > 1.6G    /usr/ports

Sorry, ports was completely bogus; including over 500MB of distfiles ..

 > [candace ~]# du -hd0 /usr/src
 > 783M    /usr/src

Similar; I've got a few patches and diffs in there.

 > and FWIW:
 > [candace ~]# du -sh /usr/src/.svn
 > 398M    /usr/src/.svn

You mean your /usr/src without .svn/ would only be 385M?  That seems 
small, unless it's compressed?  Also, perhaps .svn/ is compressed now?  
I was saying 'almost double' from the /usr/ports/.svn that accompanied 
the ports distribution with 9.2-R.

 > This is a two-week-old checkout of 10-STABLE (from which the aforementioned
 > binaries were built).
 > I don't have a ports tree from SVN (both trees I use for poudriere are using
 > portsnap at the moment).

I've never had an issue with portsnap, though we see some say they have.  
I wouldn't recommend using svnup for ports either, but haven't tried it.

 > I'm not sure any of the above matters too much, but I might do a speed
 > comparison of svn, svnup, and svnlite, which I think will be the most important
 > for most people if they are indeed that much different from each other in that
 > regard.

If you do, be sure to compare an initial fetch of a tree to small (or 
no change) updates.  svnup used to be kinda slow on initially fetching 
and building a tree, and quite fast enough, for me, for incrementals.

Also check svn vs http vs https methods.  I need to do more tests too.

Again, svnup is specifically for non-developer, more casual updaters.
 
 > On a side note, backticks are bad and you shouldn't use them. :P

Because?

 > > Bottom line: I don't think plugging to get svnup into base is worth 
 > > pursuing.  Few developers took any interest that I noticed, it was 
 > > largely tested by users.  John Mehr has been very responsive to any 
 > > issues.  To one to whom C is mostly read-only, it reads very well.
 > > 
 > > I think it's ok as a port .. perhaps a small section in the Handbook?

 > A mention in the handbook would definitely be good.

Yeah; I wish I wan't so crap at documentation, too verbose by half ..
now if we could convince Warren to check it out .. :)

Polytropon's point about documentation stands.  svn is deep and wide; 
there are primers and wiki pages for those getting their teeth into it, 
but its manpage could at least point to something immediately useful.

Polytropon wrote:

 > Good documentation is an essential point, no matter if
 > you see it as a developer or as a user. Both "man cvs"
 > and "man csup" fulfill that requirement.

As does do svnup(1) and svnup.conf(5).  Pretty painless to check out; 
you can point it elsewhere than /usr/src to play around and compare.

cheers, Ian



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