[darcs-users] no more checkpoints, but hashed repos for GHC in Darcs 2.4?
ganesh at earth.li
Sat Sep 19 00:10:15 UTC 2009
On Thu, 17 Sep 2009, Petr Rockai wrote:
> Eric Kow <kowey at darcs.net> writes:
>>> - dividing the cache into subdirectories to avoid bad filesystem
>>> performance with large directories.
>> That's http://bugs.darcs.net/issue1536 :-)
>> Petr: how do you feel about this? Do you rate this as being easier
>> than packs? Is it realistic to want this in Darcs 2.4? I am also
>> concerned about backward compatibility. How do we handle this? Format
> For cache, this should be quite simple. For repos, this would be
> incompatible change and we probably can't afford to do it just yet.
Isn't it a straightforward format change? Add support to hashed-storage,
add an extra line to the format to lock out older darcs and to drive the
decision to read/write the new format, perhaps add a conversion command to
darcs (otherwise make people re-get to switch formats), and that's it?
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