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Re: [PATCH v2 21/21] iotests: Allow check -o data_file
From: |
Maxim Levitsky |
Subject: |
Re: [PATCH v2 21/21] iotests: Allow check -o data_file |
Date: |
Wed, 06 Nov 2019 17:52:33 +0200 |
On Tue, 2019-10-15 at 16:27 +0200, Max Reitz wrote:
> The problem with allowing the data_file option is that you want to use a
> different data file per image used in the test. Therefore, we need to
> allow patterns like -o data_file='$TEST_IMG.data_file'.
>
> Then, we need to filter it out from qemu-img map, qemu-img create, and
> remove the data file in _rm_test_img.
>
> Signed-off-by: Max Reitz <address@hidden>
> ---
> tests/qemu-iotests/common.filter | 23 +++++++++++++++++++++--
> tests/qemu-iotests/common.rc | 22 +++++++++++++++++++++-
> 2 files changed, 42 insertions(+), 3 deletions(-)
>
> diff --git a/tests/qemu-iotests/common.filter
> b/tests/qemu-iotests/common.filter
> index 63bc6f6f26..9dd05689d1 100644
> --- a/tests/qemu-iotests/common.filter
> +++ b/tests/qemu-iotests/common.filter
> @@ -121,7 +121,13 @@ _filter_actual_image_size()
> # replace driver-specific options in the "Formatting..." line
> _filter_img_create()
> {
> - $SED -e "s#$REMOTE_TEST_DIR#TEST_DIR#g" \
> + data_file_filter=()
> + if data_file=$(_get_data_file "$TEST_IMG"); then
> + data_file_filter=(-e "s# data_file=$data_file##")
> + fi
> +
> + $SED "${data_file_filter[@]}" \
> + -e "s#$REMOTE_TEST_DIR#TEST_DIR#g" \
> -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
> -e "s#$TEST_DIR#TEST_DIR#g" \
> -e "s#$IMGFMT#IMGFMT#g" \
> @@ -204,9 +210,22 @@ _filter_img_info()
> # human and json output
> _filter_qemu_img_map()
> {
> + # Assuming the data_file value in $IMGOPTS contains a '$TEST_IMG',
> + # create a filter that replaces the data file name by $TEST_IMG.
> + # Example:
> + # In $IMGOPTS: 'data_file=$TEST_IMG.data_file'
> + # Then data_file_pattern == '\(.*\).data_file'
> + # And data_file_filter == -e 's#\(.*\).data_file#\1#
> + data_file_filter=()
> + if data_file_pattern=$(_get_data_file '\\(.*\\)'); then
> + data_file_filter=(-e "s#$data_file_pattern#\\1#")
> + fi
> +
> $SED -e 's/\([0-9a-fx]* *[0-9a-fx]* *\)[0-9a-fx]* */\1/g' \
> -e 's/"offset": [0-9]\+/"offset": OFFSET/g' \
> - -e 's/Mapped to *//' | _filter_testdir | _filter_imgfmt
> + -e 's/Mapped to *//' \
> + "${data_file_filter[@]}" \
> + | _filter_testdir | _filter_imgfmt
> }
>
> _filter_nbd()
> diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
> index f3784077de..bed789a691 100644
> --- a/tests/qemu-iotests/common.rc
> +++ b/tests/qemu-iotests/common.rc
> @@ -277,6 +277,20 @@ _stop_nbd_server()
> fi
> }
>
> +# Gets the data_file value from IMGOPTS and replaces the '$TEST_IMG'
> +# pattern by '$1'
> +# Caution: The replacement is done with sed, so $1 must be escaped
> +# properly. (The delimiter is '#'.)
> +_get_data_file()
> +{
> + if ! echo "$IMGOPTS" | grep -q 'data_file='; then
> + return 1
> + fi
> +
> + echo "$IMGOPTS" | sed -e 's/.*data_file=\([^,]*\).*/\1/' \
> + | sed -e "s#\\\$TEST_IMG#$1#"
> +}
> +
> _make_test_img()
> {
> # extra qemu-img options can be added by tests
> @@ -297,7 +311,8 @@ _make_test_img()
> fi
>
> if [ -n "$IMGOPTS" ]; then
> - optstr=$(_optstr_add "$optstr" "$IMGOPTS")
> + imgopts_expanded=$(echo "$IMGOPTS" | sed -e
> "s#\\\$TEST_IMG#$img_name#")
> + optstr=$(_optstr_add "$optstr" "$imgopts_expanded")
> fi
> if [ -n "$IMGKEYSECRET" ]; then
> object_options="--object secret,id=keysec0,data=$IMGKEYSECRET"
> @@ -376,6 +391,11 @@ _rm_test_img()
> # Remove all the extents for vmdk
> "$QEMU_IMG" info "$img" 2>/dev/null | grep 'filename:' | cut -f 2
> -d: \
> | xargs -I {} rm -f "{}"
> + elif [ "$IMGFMT" = "qcow2" ]; then
> + # Remove external data file
> + if data_file=$(_get_data_file "$img"); then
> + rm -f "$data_file"
> + fi
> fi
> rm -f "$img"
> }
Reviewed-by: Maxim Levitsky <address@hidden>
Best regards,
Maxim Levitsky
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