git/git-repack.sh

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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
#
USAGE='[-a] [-d] [-f] [-l] [-n] [-q]'
. git-sh-setup
no_update_info= all_into_one= remove_redundant=
local= quiet= no_reuse_delta= extra=
while case "$#" in 0) break ;; esac
do
case "$1" in
-n) no_update_info=t ;;
-a) all_into_one=t ;;
-d) remove_redundant=t ;;
-q) quiet=-q ;;
-f) no_reuse_delta=--no-reuse-delta ;;
-l) local=--local ;;
--window=*) extra="$extra $1" ;;
--depth=*) extra="$extra $1" ;;
*) usage ;;
esac
shift
done
rm -f .tmp-pack-*
PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
# There will be more repacking strategies to come...
case ",$all_into_one," in
,,)
rev_list='--unpacked'
pack_objects='--incremental'
;;
,t,)
rev_list=
pack_objects=
# Redundancy check in all-into-one case is trivial.
existing=`cd "$PACKDIR" && \
find . -type f \( -name '*.pack' -o -name '*.idx' \) -print`
;;
esac
pack_objects="$pack_objects $local $quiet $no_reuse_delta$extra"
name=$( { git-rev-list --objects --all $rev_list ||
echo "git-rev-list died with exit code $?"
} |
git-pack-objects --non-empty $pack_objects .tmp-pack) ||
exit 1
if [ -z "$name" ]; then
echo Nothing new to pack.
else
if test "$quiet" != '-q'; then
echo "Pack pack-$name created."
fi
mkdir -p "$PACKDIR" || exit
for sfx in pack idx
do
if test -f "$PACKDIR/pack-$name.$sfx"
then
mv -f "$PACKDIR/pack-$name.$sfx" \
"$PACKDIR/old-pack-$name.$sfx"
fi
done &&
mv -f .tmp-pack-$name.pack "$PACKDIR/pack-$name.pack" &&
mv -f .tmp-pack-$name.idx "$PACKDIR/pack-$name.idx" &&
test -f "$PACKDIR/pack-$name.pack" &&
test -f "$PACKDIR/pack-$name.idx" || {
echo >&2 "Couldn't replace the existing pack with updated one."
echo >&2 "The original set of packs have been saved as"
echo >&2 "old-pack-$name.{pack,idx} in $PACKDIR."
exit 1
}
rm -f "$PACKDIR/old-pack-$name.pack" "$PACKDIR/old-pack-$name.idx"
fi
if test "$remove_redundant" = t
then
# We know $existing are all redundant only when
# all-into-one is used.
if test "$all_into_one" != '' && test "$existing" != ''
then
sync
( cd "$PACKDIR" &&
for e in $existing
do
case "$e" in
./pack-$name.pack | ./pack-$name.idx) ;;
*) rm -f $e ;;
esac
done
)
fi
git-prune-packed
fi
case "$no_update_info" in
t) : ;;
*) git-update-server-info ;;
esac