1 files changed, 58 insertions, 0 deletions
diff --git a/modules.d/conf-tgz/hooks/s3-unpack-config-tgz.sh b/modules.d/conf-tgz/hooks/s3-unpack-config-tgz.sh
new file mode 100755
index 00000000..2132423c
--- /dev/null
+++ b/modules.d/conf-tgz/hooks/s3-unpack-config-tgz.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+# -*- coding: utf-8 -*-
+
+type emergency_shell >/dev/null 2>&1 || source /lib/dracut-lib.sh
+
+# tarcopy <source_dir> <target_dir>
+tarcopy() {
+	[ -d "$1" -a -d "$2" ] || return 1
+	cd "$1"
+	local filelist="$(mktemp)"
+	find . \! -type d > "$filelist"
+	tar -c -p -T "$filelist" | tar -xp -C "$2"
+	rm -f -- "$filelist"
+	cd - &>/dev/null
+}
+
+unpack_config_tgz() {
+	local config_tgz="/etc/config.tgz"
+	[ -e "$config_tgz" ] || return 1
+	# create list of overwritten files for debugging purposes
+	mkdir -p "${NEWROOT}/opt/openslx"
+	tar \
+		--list \
+		--verbose \
+		--file="$config_tgz" \
+		> "${NEWROOT}/opt/openslx/config.tgz.list" 2>&1
+	local extract_dir="$(mktemp -d)"
+	tar \
+		--extract \
+		--preserve-permissions \
+		--file="$config_tgz" \
+		--directory="$extract_dir"
+	if [ "$?" -ne 0 ]; then
+		warn "Failed to extract '$config_tgz' to '$extract_dir'."
+		return 1
+	fi
+	# check SLX_LOCAL_CONFIGURATION
+	source "/etc/openslx"
+	if [ -n "$SLX_LOCAL_CONFIGURATION" ]; then
+		if [ ! -d "${extract_dir}/openslx-configs/${SLX_LOCAL_CONFIGURATION}" ]; then
+			warn "Ignoring missing SLX_LOCAL_CONFIGURATION in '$config_tgz'."
+		else
+			tarcopy \
+				"${extract_dir}/openslx-configs/${SLX_LOCAL_CONFIGURATION}" \
+				"${extract_dir}"
+		fi
+	fi
+	# always purge openslx-configs/
+	rm -rf "${extract_dir}/openslx-configs"
+
+	# finally copy the rest into stage4
+	if ! tarcopy "${extract_dir}" "$NEWROOT"; then
+		warn "'tarcopy' from '$extract_dir' to '$NEWROOT' failed."
+	fi
+}
+
+unpack_config_tgz
+: