#!/bin/ksh -p
#
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#
# Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
# Copyright 2019, 2020 by Christian Schwarz. All rights reserved.
#

. $STF_SUITE/include/libtest.shlib

#
# DESCRIPTION:
# 'zfs bookmark' should work with both full and short arguments.
#
# STRATEGY:
# 1. Create initial snapshot
#
# 2. Verify we can create a bookmark specifying snapshot and bookmark full paths
# 3. Verify we can create a bookmark specifying the short snapshot name
# 4. Verify we can create a bookmark specifying the short bookmark name
# 5. Verify at least a full dataset path is required and both snapshot and
#    bookmark name must be valid
#
# 6. Verify we can copy a bookmark by specifying the source bookmark and new
#    bookmark full paths.
# 7. Verify we can copy a bookmark specifying the short source name
# 8. Verify we can copy a bookmark specifying the short new name
# 9. Verify two short paths are not allowed, and test empty paths
# 10. Verify we cannot copy a bookmark if the new bookmark already exists
# 11. Verify that copying a bookmark only works if new and source name
#     have the same dataset
#

verify_runnable "both"

function cleanup
{
	snapexists "$DATASET@$TESTSNAP" && \
		destroy_dataset "$DATASET@$TESTSNAP"

	bkmarkexists "$DATASET#$TESTBM" && \
		destroy_dataset "$DATASET#$TESTBM"

	bkmarkexists "$DATASET#$TESTBMCOPY" && \
		destroy_dataset "$DATASET#$TESTBMCOPY"
}

log_assert "'zfs bookmark' should work only when passed valid arguments."
log_onexit cleanup

DATASET="$TESTPOOL/$TESTFS"
DATASET_TWO="$TESTPOOL/${TESTFS}_two"
TESTSNAP='snapshot'
TESTSNAP2='snapshot2'
TESTBM='bookmark'
TESTBMCOPY='bookmark_copy'


# Create initial snapshot
log_must zfs snapshot "$DATASET@$TESTSNAP"

#
# Bookmark creation tests
#

# Verify we can create a bookmark specifying snapshot and bookmark full paths
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET#$TESTBM"
log_must eval "bkmarkexists $DATASET#$TESTBM"
log_must zfs destroy "$DATASET#$TESTBM"

# Verify we can create a bookmark specifying the snapshot name
log_must zfs bookmark "@$TESTSNAP" "$DATASET#$TESTBM"
log_must eval "bkmarkexists $DATASET#$TESTBM"
log_must zfs destroy "$DATASET#$TESTBM"

# Verify we can create a bookmark specifying the bookmark name
log_must zfs bookmark "$DATASET@$TESTSNAP" "#$TESTBM"
log_must eval "bkmarkexists $DATASET#$TESTBM"
log_must zfs destroy "$DATASET#$TESTBM"

# Verify at least a full dataset path is required and both snapshot and
# bookmark name must be valid
log_mustnot zfs bookmark "@$TESTSNAP" "#$TESTBM"
log_mustnot zfs bookmark "$TESTSNAP" "#$TESTBM"
log_mustnot zfs bookmark "@$TESTSNAP" "$TESTBM"
log_mustnot zfs bookmark "$TESTSNAP" "$TESTBM"
log_mustnot zfs bookmark "$TESTSNAP" "$DATASET#$TESTBM"
log_mustnot zfs bookmark "$DATASET" "$TESTBM"
log_mustnot zfs bookmark "$DATASET@" "$TESTBM"
log_mustnot zfs bookmark "$DATASET" "#$TESTBM"
log_mustnot zfs bookmark "$DATASET@" "#$TESTBM"
log_mustnot zfs bookmark "$DATASET@$TESTSNAP" "$TESTBM"
log_mustnot zfs bookmark "@" "#$TESTBM"
log_mustnot zfs bookmark "@" "#"
log_mustnot zfs bookmark "@$TESTSNAP" "#"
log_mustnot zfs bookmark "@$TESTSNAP" "$DATASET#"
log_mustnot zfs bookmark "@$TESTSNAP" "$DATASET"
log_mustnot zfs bookmark "$TESTSNAP" "$DATASET#"
log_mustnot zfs bookmark "$TESTSNAP" "$DATASET"
log_mustnot eval "bkmarkexists $DATASET#$TESTBM"

# Verify that we can create a bookmarks on another origin filesystem
log_must zfs clone "$DATASET@$TESTSNAP" "$DATASET_TWO"
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET_TWO#$TESTBM"
log_must eval "destroy_dataset $DATASET_TWO"

# Verify that we can cannot create bookmarks on a non-origin filesystem
log_must zfs create "$DATASET_TWO"
log_mustnot_expect "source is not an ancestor of the new bookmark's dataset" zfs bookmark "$DATASET@$TESTSNAP" "$DATASET_TWO#$TESTBM"
log_must zfs destroy "$DATASET_TWO"

# Verify that we can create bookmarks of snapshots on the pool dataset
log_must zfs snapshot "$TESTPOOL@$TESTSNAP"
log_must zfs bookmark "$TESTPOOL@$TESTSNAP" "$TESTPOOL#$TESTBM"
log_must zfs destroy "$TESTPOOL#$TESTBM"
log_must zfs destroy "$TESTPOOL@$TESTSNAP"

#
# Bookmark copying tests
#

# create the source bookmark
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET#$TESTBM"

# Verify we can copy a bookmark by specifying the source bookmark
# and new bookmark full paths.
log_must eval "bkmarkexists $DATASET#$TESTBM"
log_must zfs bookmark "$DATASET#$TESTBM" "$DATASET#$TESTBMCOPY"
log_must eval "bkmarkexists $DATASET#$TESTBMCOPY"
## validate destroy once (should be truly independent bookmarks)
log_must zfs destroy "$DATASET#$TESTBM"
log_mustnot eval "bkmarkexists $DATASET#$TESTBM"
log_must eval "bkmarkexists $DATASET#$TESTBMCOPY"
log_must zfs destroy "$DATASET#$TESTBMCOPY"
log_mustnot eval "bkmarkexists $DATASET#$TESTBMCOPY"
log_mustnot eval "bkmarkexists $DATASET#$TESTBM"
## recreate the source bookmark
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET#$TESTBM"

# Verify we can copy a bookmark specifying the short source name
log_must zfs bookmark "#$TESTBM" "$DATASET#$TESTBMCOPY"
log_must eval "bkmarkexists $DATASET#$TESTBMCOPY"
log_must zfs destroy "$DATASET#$TESTBMCOPY"

# Verify we can copy a bookmark specifying the short bookmark name
log_must zfs bookmark "$DATASET#$TESTBM" "#$TESTBMCOPY"
log_must eval "bkmarkexists $DATASET#$TESTBMCOPY"
log_must zfs destroy "$DATASET#$TESTBMCOPY"

# Verify two short paths are not allowed, and test empty paths
log_mustnot zfs bookmark "#$TESTBM" "#$TESTBMCOPY"
log_mustnot zfs bookmark "#$TESTBM" "#"
log_mustnot zfs bookmark "#"        "#$TESTBMCOPY"
log_mustnot zfs bookmark "#"        "#"
log_mustnot zfs bookmark "#"        ""
log_mustnot zfs bookmark ""         "#"
log_mustnot zfs bookmark ""         ""

# Verify that we can copy bookmarks on another origin filesystem
log_must zfs clone "$DATASET@$TESTSNAP" "$DATASET_TWO"
log_must zfs bookmark "$DATASET#$TESTBM" "$DATASET_TWO#$TESTBMCOPY"
log_must zfs destroy "$DATASET_TWO"

# Verify that we can cannot create bookmarks on another non-origin filesystem
log_must zfs create "$DATASET_TWO"
log_mustnot_expect "source is not an ancestor of the new bookmark's dataset" zfs bookmark "$DATASET#$TESTBM" "$DATASET_TWO#$TESTBMCOPY"
log_must zfs destroy "$DATASET_TWO"

# Verify that we can copy bookmarks on the pool dataset
log_must zfs snapshot "$TESTPOOL@$TESTSNAP"
log_must zfs bookmark "$TESTPOOL@$TESTSNAP" "$TESTPOOL#$TESTBM"
log_must zfs bookmark "$TESTPOOL#$TESTBM" "$TESTPOOL#$TESTBMCOPY"
log_must zfs destroy "$TESTPOOL#$TESTBM"
log_must zfs destroy "$TESTPOOL#$TESTBMCOPY"
log_must zfs destroy "$TESTPOOL@$TESTSNAP"

# Verify that copied 'normal' bookmarks are independent of the source bookmark
log_must zfs bookmark "$DATASET#$TESTBM" "$DATASET#$TESTBMCOPY"
log_must zfs destroy "$DATASET#$TESTBM"
log_must eval "zfs send $DATASET@$TESTSNAP > $TEST_BASE_DIR/zfstest_datastream.$$"
log_must eval "destroy_dataset $TESTPOOL/$TESTFS/recv"
log_must eval "zfs recv -o mountpoint=none $TESTPOOL/$TESTFS/recv < $TEST_BASE_DIR/zfstest_datastream.$$"
log_must zfs snapshot "$DATASET@$TESTSNAP2"
log_must eval "zfs send -i \#$TESTBMCOPY $DATASET@$TESTSNAP2 > $TEST_BASE_DIR/zfstest_datastream.$$"
log_must eval "zfs recv $TESTPOOL/$TESTFS/recv < $TEST_BASE_DIR/zfstest_datastream.$$"
# cleanup
log_must eval "destroy_dataset $DATASET@$TESTSNAP2"
log_must zfs destroy "$DATASET#$TESTBMCOPY"
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET#$TESTBM"

# Verify that copied redaction bookmarks are independent of the source bookmark
## create redaction bookmark
log_must zfs destroy "$DATASET#$TESTBM"
log_must zfs destroy "$DATASET@$TESTSNAP"
log_must eval "echo secret > $TESTDIR/secret"
log_must zfs snapshot "$DATASET@$TESTSNAP"
log_must eval "echo redacted > $TESTDIR/secret"
log_must zfs snapshot "$DATASET@$TESTSNAP2" # TESTSNAP2 is the redaction snapshot
log_must zfs list -t all -o name,createtxg,guid,mountpoint,written
log_must zfs redact "$DATASET@$TESTSNAP" "$TESTBM" "$DATASET@$TESTSNAP2"
# ensure our primitive for testing whether a bookmark is a redaction bookmark works
log_must eval "zfs get all $DATASET#$TESTBM | grep redact_snaps"
## copy the redaction bookmark
log_must zfs bookmark "$DATASET#$TESTBM" "#$TESTBMCOPY"
log_mustnot eval "zfs get all $DATASET#$TESTBMCOPY | grep redact_snaps"
log_must eval "zfs send --redact "$TESTBMCOPY" -i $DATASET@$TESTSNAP $DATASET@$TESTSNAP2 2>&1 | head -n 100 | grep 'not a redaction bookmark'"
# try the above again after destroying the source bookmark, preventive measure for future work
log_must zfs destroy "$DATASET#$TESTBM"
log_mustnot eval "zfs get all $DATASET#$TESTBMCOPY | grep redact_snaps"
log_must eval "zfs send --redact "$TESTBMCOPY" -i $DATASET@$TESTSNAP $DATASET@$TESTSNAP2 2>&1 | head -n 100 | grep 'not a redaction bookmark'"
## cleanup
log_must eval "destroy_dataset $DATASET@$TESTSNAP2"
log_must zfs destroy "$DATASET#$TESTBMCOPY"
log_must eval "destroy_dataset $DATASET@$TESTSNAP"
log_must zfs snapshot "$DATASET@$TESTSNAP"
log_must zfs bookmark "$DATASET@$TESTSNAP" "$DATASET#$TESTBM"

log_pass "'zfs bookmark' works as expected"
