Re: [Gnu-arch-users] Revision Library Directory

[John Meinel]

Nikolai Weibull wrote:
> So I figured I was finally going to try out revision libraries (no need
> so far), but I'm a bit on the cautious side for some reason and I would
> like some information beyond that in the tutorial.  The DIR parameter,
> anything special about it?  Preferred location?  Preferred name?
>         nikolai

On my personal machines, I use:
$HOME/.tla-revision-library

At work, I have an NFS mounted home dir, so I use
/tmp/jfmeinel/tla_revision_library

On Cygwin, I use:
$HOME/dev/{revlibs}

But that's because $HOME is on FAT32, while dev is a symlink to NTFS, 
and tla-cygwin needs either {archives}, or {revlibs} to force path 
compression.

I think other things I have seen are:
$HOME/revlib
or
$HOME/ARCHIVES
etc.

The name is quite flexible, it's more a personal preference. And I never 
see it, except really when I first set it up.

I would also say that you probably always want to do:

tla library-config --greedy --sparse `tla my-revision-library`

A normal revlib is only modified when you use a specific library 
command. A greedy one will try and get revisions whenever you do a get, 
update, changes, etc. (With nothing greedy, you still get ++pristine-tree)
As for sparse, a non-sparse tree grabs *every* revision, sparse only 
adds one you will use.

One very weird thing that I've seen with my /tmp revlib, is that every 
so often, the =greedy, and =sparse files disappear. I have no idea why, 
as they are my name, and /tmp/jfmeinel only has me with permissions. 
Also, it's not a temp filesystem, as if it was, the rest of the files 
would disappear as well, wouldn't they? I don't know if this means 
anything, I think it's just a fluke of the machine I'm on.

Anyway, I would say revlibs are pretty stable. I wish you could pass the 
--greedy, --sparse flags in the "my-revision-library" command. And I 
would think that the default should be "--greedy --sparse" if no other 
revlibs exist.

Also, you should be aware of the tlacontrib script "shrink-library". By 
default it removes entries in your library that haven't been accessed 
within 2 weeks, and always leaves the latest version. I tend to run 
"shrink-library 0" which shrinks everything but the latest.

I got it from:
address@hidden
    http://mirrors.sourcecontrol.net/address@hidden

John
=:->

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