Add support for "restore --sparse"

[bup.git] / t / test-sparse-files.sh

diff --git a/t/test-sparse-files.sh b/t/test-sparse-files.sh
new file mode 100755 (executable)
index 0000000..884c6b9
--- /dev/null
+++ b/t/test-sparse-files.sh
@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+. ./wvtest-bup.sh
+
+set -o pipefail
+
+readonly mb=1048576
+readonly top="$(WVPASS pwd)" || exit $?
+readonly tmpdir="$(WVPASS wvmktempdir)" || exit $?
+
+export BUP_DIR="$tmpdir/bup"
+export GIT_DIR="$tmpdir/bup"
+
+bup() { "$top/bup" "$@"; }
+
+WVPASS cd "$tmpdir"
+
+WVPASS dd if=/dev/zero of=test-sparse seek=$((1024 * 256)) bs=1 count=1
+restore_size=$(WVPASS du -k -s test-sparse | WVPASS cut -f1) || exit $?
+if ! [ "$restore_size" -lt 256 ]; then
+    WVSTART "no sparse support detected -- skipping tests"
+    exit 0
+fi
+
+WVPASS bup init
+WVPASS mkdir src
+
+WVPASS dd if=/dev/zero of=src/foo seek=$mb bs=1 count=1
+WVPASS bup index src
+WVPASS bup save -n src src
+
+WVSTART "sparse file restore (all sparse)"
+WVPASS bup restore -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -gt 1000 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --no-sparse (all sparse)"
+WVPASS rm -r restore
+WVPASS bup restore --no-sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -gt 1000 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (all sparse)"
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -lt 100 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (sparse end)"
+WVPASS echo "start" > src/foo
+WVPASS dd if=/dev/zero of=src/foo seek=$mb bs=1 count=1 conv=notrunc
+WVPASS bup index src
+WVPASS bup save -n src src
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -lt 100 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (sparse middle)"
+WVPASS echo "end" >> src/foo
+WVPASS bup index src
+WVPASS bup save -n src src
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -lt 100 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (sparse start)"
+WVPASS dd if=/dev/zero of=src/foo seek=$mb bs=1 count=1
+WVPASS echo "end" >> src/foo
+WVPASS bup index src
+WVPASS bup save -n src src
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -lt 100 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (sparse start and end)"
+WVPASS dd if=/dev/zero of=src/foo seek=$mb bs=1 count=1
+WVPASS echo "middle" >> src/foo
+WVPASS dd if=/dev/zero of=src/foo seek=$((2 * mb)) bs=1 count=1 conv=notrunc
+WVPASS bup index src
+WVPASS bup save -n src src
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+restore_size=$(WVPASS du -k -s restore | WVPASS cut -f1) || exit $?
+WVPASS [ "$restore_size" -lt 100 ]
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVSTART "sparse file restore --sparse (random)"
+WVPASS bup random 512k > src/foo
+WVPASS bup index src
+WVPASS bup save -n src src
+WVPASS rm -r restore
+WVPASS bup restore --sparse -C restore "src/latest/$(pwd)/"
+WVPASS "$top/t/compare-trees" -c src/ restore/src/
+
+WVPASS rm -rf "$tmpdir"