1 files changed, 125 insertions, 0 deletions
diff --git a/git-repack.sh b/git-repack.sh
new file mode 100755
index 0000000000..156c5e8f4a
--- /dev/null
+++ b/git-repack.sh
@@ -0,0 +1,125 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Linus Torvalds
+#
+
+USAGE='[-a] [-d] [-f] [-l] [-n] [-q] [--max-pack-size=N] [--window=N] [--window-memory=N] [--depth=N]'
+SUBDIRECTORY_OK='Yes'
+. git-sh-setup
+
+no_update_info= all_into_one= remove_redundant=
+local= quiet= no_reuse= extra=
+while case "$#" in 0) break ;; esac
+do
+	case "$1" in
+	-n)	no_update_info=t ;;
+	-a)	all_into_one=t ;;
+	-d)	remove_redundant=t ;;
+	-q)	quiet=-q ;;
+	-f)	no_reuse=--no-reuse-object ;;
+	-l)	local=--local ;;
+	--max-pack-size=*) extra="$extra $1" ;;
+	--window=*) extra="$extra $1" ;;
+	--window-memory=*) extra="$extra $1" ;;
+	--depth=*) extra="$extra $1" ;;
+	*)	usage ;;
+	esac
+	shift
+done
+
+# Later we will default repack.UseDeltaBaseOffset to true
+default_dbo=false
+
+case "`git config --bool repack.usedeltabaseoffset ||
+       echo $default_dbo`" in
+true)
+	extra="$extra --delta-base-offset" ;;
+esac
+
+PACKDIR="$GIT_OBJECT_DIRECTORY/pack"
+PACKTMP="$GIT_OBJECT_DIRECTORY/.tmp-$$-pack"
+rm -f "$PACKTMP"-*
+trap 'rm -f "$PACKTMP"-*' 0 1 2 3 15
+
+# There will be more repacking strategies to come...
+case ",$all_into_one," in
+,,)
+	args='--unpacked --incremental'
+	;;
+,t,)
+	if [ -d "$PACKDIR" ]; then
+		for e in `cd "$PACKDIR" && find . -type f -name '*.pack' \
+			| sed -e 's/^\.\///' -e 's/\.pack$//'`
+		do
+			if [ -e "$PACKDIR/$e.keep" ]; then
+				: keep
+			else
+				args="$args --unpacked=$e.pack"
+				existing="$existing $e"
+			fi
+		done
+	fi
+	[ -z "$args" ] && args='--unpacked --incremental'
+	;;
+esac
+
+args="$args $local $quiet $no_reuse$extra"
+names=$(git pack-objects --non-empty --all --reflog $args </dev/null "$PACKTMP") ||
+	exit 1
+if [ -z "$names" ]; then
+	if test -z "$quiet"; then
+		echo Nothing new to pack.
+	fi
+fi
+for name in $names ; do
+	fullbases="$fullbases pack-$name"
+	chmod a-w "$PACKTMP-$name.pack"
+	chmod a-w "$PACKTMP-$name.idx"
+	if test "$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.$sfx"
+		fi
+	done &&
+	mv -f "$PACKTMP-$name.pack" "$PACKDIR/pack-$name.pack" &&
+	mv -f "$PACKTMP-$name.idx"  "$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-$name.idx"
+done
+
+if test "$remove_redundant" = t
+then
+	# We know $existing are all redundant.
+	if [ -n "$existing" ]
+	then
+		sync
+		( cd "$PACKDIR" &&
+		  for e in $existing
+		  do
+			case " $fullbases " in
+			*" $e "*) ;;
+			*)	rm -f "$e.pack" "$e.idx" "$e.keep" ;;
+			esac
+		  done
+		)
+	fi
+	git prune-packed $quiet
+fi
+
+case "$no_update_info" in
+t) : ;;
+*) git-update-server-info ;;
+esac