Re: We should bump WC format version number for 1.5.

Let me try to summarize the current discussion:

I think we all agree on:

* We can't store a non-infinite depth in an entries file of a format
that a 1.4 client can write, because that can read to corruption, so
*at the very least* any entries file with non-infinite depth *must*
have a new format (9).

* wc format upgrades are a pain for users who are using multiple tools
or computers to access their wcs.

There are two solutions: make 1.5 upgrade all entries files to 9, or
only those with non-infinite depth. (As usual there will be a #define
to prevent *any* upgrading.)

The advantage to the former is simplicity: it is easier for a tool
author (for example) to say "as soon as you use the new version you
will need to upgrade your other tools" than something more nuanced
like "as soon as you use the new version and use depth features, you
will need to upgrade your other tools".

The advantage to the latter is that users who don't use the depth
features can happily use 1.4 and 1.5 tools together on the same
working copy, making the upgrade much smoother... as long as they
don't use --depth.

--dave

-- 
David Glasser | glasser_at_davidglasser.net | http://www.davidglasser.net/
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