[gentoo-portage-dev] [PATCH] rsync metadata cache patch (obsoletes metadata transfer on sync)

[Zac Medico]

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Hi,

I was playing with the metadata cache stuff this weekend and decided to write a patch that obsoletes metadata transfers on sync.  Simply apply this patch to portage-2.1_preX and add "metadb" to FEATURES in make.conf.  Side note: this feature should resolve bug 90518.

I also wrote a script that tests consistency between regenerated metadata and the pre-generated metadata from the rsync mirrors.  Actually, writing this script taught me what I needed to know to write the patch.  If you want to try this script, you need to remove /var/cache/edb/dep/${PORTDIR} in order to force a regen.  Also, the script will not work as designed when FEATURES="metadb" is enabled.

Zac
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