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git/git-repack-script
Junio C Hamano d5acdcf18e git-repack-script: Add option to repack all objects.
This originally came from Frank Sorenson, but with a bit of rework to
allow future enhancements without changing the external interface for
pack pruning part.

With the '-a' option, all objects in the current repository are packed
into a single pack.  When the '-d' option is given at the same time,
existing packs that were made redundant by this round of repacking are
deleted.

Since we currently have only two repacking strategies, one with '-a'
(everything into one) and the other without '-a' (incrementally pack
only the unpacked ones), the '-d' option is meaningful only when used
with '-a'; it removes the packs existed before we did the "everything
into one" repacking.  At least for now.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Acked-by: Frank Sorenson <frank@tuxrocks.com>
(cherry picked from bfed505327e31221d8de796b3af880bad696b149 commit)
2005-08-29 17:20:07 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
#
. git-sh-setup-script || die "Not a git archive"
no_update_info= all_into_one= remove_redundant=
while case "$#" in 0) break ;; esac
do
case "$1" in
-n) no_update_info=t ;;
-a) all_into_one=t ;;
-d) remove_redandant=t ;;
*) break ;;
esac
shift
done
rm -f .tmp-pack-*
PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
# There will be more repacking strategies to come...
case ",$all_into_one," in
,,)
rev_list='--unpacked'
rev_parse='--all'
pack_objects='--incremental'
;;
,t,)
rev_list=
rev_parse='--all'
pack_objects=
# This part is a stop-gap until we have proper pack redundancy
# checker.
existing=`cd "$PACKDIR" && \
find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
;;
esac
name=$(git-rev-list --objects $rev_list $(git-rev-parse $rev_parse) |
git-pack-objects --non-empty $pack_objects .tmp-pack) ||
exit 1
if [ -z "$name" ]; then
echo Nothing new to pack.
exit 0
fi
echo "Pack pack-$name created."
mkdir -p "$PACKDIR" || exit
mv .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
mv .tmp-pack-$name.idx "$PACKDIR/pack-$name.idx" ||
exit
if test "$remove_redandant" = t
then
# We know $existing are all redandant only when
# all-into-one is used.
if test "$all_into_one" != '' && test "$existing" != ''
then
( cd "$PACKDIR" && rm -f $existing )
fi
fi
case "$no_update_info" in
t) : ;;
*) git-update-server-info ;;
esac