Add new syncoid tests

Test the new --include-snaps and --exclude-snaps options for syncoid.

tests/syncoid/8_filter_snaps/run.sh

@@ -0,0 +1,142 @@
+#!/bin/bash
+
+# test filtering snapshot names using --include-snaps and --exclude-snaps
+
+set -x
+set -e
+
+. ../../common/lib.sh
+
+POOL_IMAGE="/tmp/syncoid-test-8.zpool"
+MOUNT_TARGET="/tmp/syncoid-test-8.mount"
+POOL_SIZE="100M"
+POOL_NAME="syncoid-test-8"
+
+truncate -s "${POOL_SIZE}" "${POOL_IMAGE}"
+
+zpool create -m none -f "${POOL_NAME}" "${POOL_IMAGE}"
+
+#####
+# Create source snapshots and destroy the destination snaps and dataset.
+#####
+function setup_snaps {
+  # create intermediate snapshots
+  # sleep is needed so creation time can be used for proper sorting
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@monthly1
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@daily1
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@daily2
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@hourly1
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@hourly2
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@daily3
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@hourly3
+  sleep 1
+  zfs snapshot "${POOL_NAME}"/src@hourly4
+}
+
+#####
+# Remove the destination snapshots and dataset so that each test starts with a
+# blank slate.
+#####
+function clean_snaps {
+  zfs destroy "${POOL_NAME}"/dst@%
+  zfs destroy "${POOL_NAME}"/dst
+}
+
+#####
+# Verify that the correct set of snapshots is present on the destination.
+#####
+function verify_checksum {
+  zfs list -r -t snap "${POOL_NAME}"
+
+  checksum=$(zfs list -t snap -r -H -o name "${POOL_NAME}" | sed 's/@syncoid_.*/@syncoid_/' | shasum -a 256)
+
+  echo "Expected checksum: $1"
+  echo "Actual checksum: $checksum"
+  return $( [[ "$checksum" == "$1" ]] )
+}
+
+function cleanUp {
+  zpool export "${POOL_NAME}"
+}
+
+# export pool in any case
+trap cleanUp EXIT
+
+zfs create "${POOL_NAME}"/src
+setup_snaps
+
+#####
+# TEST 1
+#
+# --exclude-snaps is provided and --no-stream is omitted.  Hourly snaps should
+# be missing from the destination, and all other intermediate snaps should be
+# present.
+#####
+
+../../../syncoid --debug --compress=none --no-sync-snap --exclude-snaps='hourly' "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum 'fb408c21b8540b3c1bd04781b6091d77ff9432defef3303c1a34321b45e8b6a9  -'
+clean_snaps
+
+#####
+# TEST 2
+#
+# --exclude-snaps and --no-stream are provided.  Only the daily3 snap should be
+# present on the destination.
+#####
+
+../../../syncoid --debug --compress=none --no-sync-snap --exclude-snaps='hourly' --no-stream "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum 'c9ad1d3e07156847f957509fcd4805edc7d4c91fe955c605ac4335076367d19a  -'
+clean_snaps
+
+#####
+# TEST 3
+#
+# --include-snaps is provided and --no-stream is omitted.  Hourly snaps should
+# be present on the destination, and all other snaps should be missing
+#####
+
+../../../syncoid --debug --compress=none --no-sync-snap --include-snaps='hourly' "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum 'f2fb62a2b475bec85796dbf4f6c02af5b4ccaca01f9995ef3d0909787213cbde  -'
+clean_snaps
+
+#####
+# TEST 4
+#
+# --include-snaps and --no-stream are provided.  Only the hourly4 snap should
+# be present on the destination.
+#####
+
+../../../syncoid --debug --compress=none --no-sync-snap --include-snaps='hourly' --no-stream "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum '194e60e9d635783f7c7d64e2b0d9f0897c926e69a86ffa2858cf0ca874ffeeb4  -'
+clean_snaps
+
+#####
+# TEST 5
+#
+# --include-snaps='hourly' and --exclude-snaps='3' are both provided. The
+# hourly snaps should be present on the destination except for hourly3; daily
+# and monthly snaps should be missing.
+#####
+
+../../../syncoid --debug --compress=none --no-sync-snap --include-snaps='hourly' --exclude-snaps='3' "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum '55267405e346e64d6f7eed29d62bc9bb9ea0e15c9515103a92ee47a7439a99a2  -'
+clean_snaps
+
+#####
+# TEST 6
+#
+# --exclude-snaps='syncoid' and --no-stream are provided, and --no-sync-snap is
+# omitted. The sync snap should be created on the source but not sent to the
+# destination; only hourly4 should be sent.
+#####
+
+../../../syncoid --debug --compress=none --no-stream --exclude-snaps='syncoid' "${POOL_NAME}"/src "${POOL_NAME}"/dst
+verify_checksum '47380e1711d08c46fb1691fa4bd65e5551084fd5b961baa2de7f91feff2cb4b8  -'
+clean_snaps