Sparse file support: create an empty sparse file for in-place restore

integration_tests/sparse_test.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Testing backup and restore of sparse files
+
+. ./test_functions.sh
+
+fixture
+
+pushd ${TEST_REPO}
+${DUPLICACY} init integration-tests $TEST_STORAGE -c 1m
+
+for i in `seq 1 10`; do
+    dd if=/dev/urandom of=file3 bs=1000 count=1000 seek=$((100000 * $i))
+done
+
+ls -lsh file3
+
+${DUPLICACY} backup 
+${DUPLICACY} check --files -stats
+
+rm file1 file3
+
+${DUPLICACY} restore -r 1
+
+ls -lsh file3
+
+popd