saving uncommitted changes in /etc prior to emerge run

etckeeper/uninit.d/._cfg0000_50vcs-uninit

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -e
+
+if [ "$VCS" = git ]; then
+	rm -rf .git
+	file=.gitignore
+elif [ "$VCS" = hg ]; then
+	rm -rf .hg
+	file=.hgignore
+elif [ "$VCS" = bzr ]; then
+	rm -rf .bzr
+	file=.bzrignore
+elif [ "$VCS" = darcs ]; then
+	rm -rf _darcs
+	file=.darcsignore
+fi
+
+managed_by_etckeeper="managed by etckeeper"
+
+if ! grep -q "$managed_by_etckeeper" "$file"; then
+	exit 0
+else
+	realfile="$file"
+	if which tempfile >/dev/null 2>&1 || type -p tempfile >/dev/null 2>&1; then
+		tempfile="tempfile"
+	elif which mktemp >/dev/null 2>&1 || type -p mktemp >/dev/null 2>&1; then
+		tempfile="mktemp"
+	else
+		echo "etckeeper warning: can't find tempfile or mktemp" >&2
+		exit 1
+	fi
+	file=$($tempfile)
+	otherentries=
+	skipping=
+	while read -r line; do
+		if echo "$line" | grep -q "$managed_by_etckeeper"; then
+			if [ ! "$skipping" ]; then
+				skipping=1
+			else
+				skipping=
+			fi
+		elif [ ! "$skipping" ]; then
+			echo "$line" >> "$file"
+			otherentries=1
+		fi
+	done <"$realfile"
+
+	if [ "$otherentries" ]; then
+		mv -f "$file" "$realfile"
+	else
+		rm -f "$file"
+		rm -f "$realfile"
+	fi
+fi

etckeeper/uninit.d/01prompt

@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+
+if [ "$1" != "-f" ]; then
+	echo "** Warning: This will DESTROY all recorded history for $ETCKEEPER_DIR,"
+	echo "** including the $VCS repository."
+	echo ""
+	printf "Are you sure you want to do this? [yN] "
+	read answer
+	case "$answer" in 
+		[Yy]*)
+			echo "Proceeding.."
+			exit 0
+		;;
+		*)
+			echo "Aborting etckeeper uninit."
+			exit 1
+		;;
+	esac
+fi

etckeeper/uninit.d/50remove-metadata

@@ -0,0 +1,6 @@
+#!/bin/sh
+set -e
+
+# Files generated by etckeeper to store metadata the VCS cannot preserve.
+rm -f .etckeeper
+rm -f .metadata # only generated by old versions

etckeeper/uninit.d/50vcs-uninit

@@ -0,0 +1,54 @@
+#!/bin/sh
+set -e
+
+if [ "$VCS" = git ]; then
+	rm -rf .git
+	file=.gitignore
+elif [ "$VCS" = hg ]; then
+	rm -rf .hg
+	file=.hgignore
+elif [ "$VCS" = bzr ]; then
+	rm -rf .bzr
+	file=.bzrignore
+elif [ "$VCS" = darcs ]; then
+	rm -rf _darcs
+	file=.darcsignore
+fi
+
+managed_by_etckeeper="managed by etckeeper"
+
+if ! grep -q "$managed_by_etckeeper" "$file"; then
+	exit 0
+else
+	realfile="$file"
+	if which tempfile >/dev/null 2>&1 || type -p tempfile >/dev/null 2>&1; then
+		tempfile="tempfile"
+	elif which mktemp >/dev/null 2>&1 || type -p mktemp >/dev/null 2>&1; then
+		tempfile="mktemp"
+	else
+		echo "etckeeper warning: can't find tempfile or mktemp" >&2
+		exit 1
+	fi
+	file=$($tempfile)
+	otherentries=
+	skipping=
+	while read line; do
+		if echo "$line" | grep -q "$managed_by_etckeeper"; then
+			if [ ! "$skipping" ]; then
+				skipping=1
+			else
+				skipping=
+			fi
+		elif [ ! "$skipping" ]; then
+			echo "$line" >> "$file"
+			otherentries=1
+		fi
+	done <"$realfile"
+
+	if [ "$otherentries" ]; then
+		mv -f "$file" "$realfile"
+	else
+		rm -f "$file"
+		rm -f "$realfile"
+	fi
+fi

etckeeper/uninit.d/README

@@ -0,0 +1,2 @@
+Executable files in this directory are run to uninitialise the working
+directory, removing files added by `etckeeper init`.