Junio C Hamano f4204ab9f6 Store peeled refs in packed-refs (take 2). ...

This fixes the previous implementation which failed to optimize
repositories with tons of lightweight tags.  The updated
packed-refs format begins with "# packed-refs with:" line that
lists the kind of extended data the file records.  Currently,
there is only one such extension defined, "peeled".  This stores
the "peeled tag" on a line that immediately follows a line for a
tag object itself in the format "^<sha-1>".

The header line itself and any extended data are ignored by
older implementation, so packed-refs file generated with this
version can still be used by older git.  packed-refs made by
older git can of course be used with this version.

Signed-off-by: Junio C Hamano <junkio@cox.net>

2006-11-21 23:37:35 -08:00

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