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iotests: Make _filter_img_create more active
Right now, _filter_img_create just filters out everything that looks format-dependent, and applies some filename filters. That means that we have to add another filter line every time some format gets a new creation option. This can be avoided by instead discarding everything and just keeping what we know is format-independent (format, size, backing file, encryption information[1], preallocation) or just interesting to have in the reference output (external data file path). Furthermore, we probably want to sort these options. Format drivers are not required to define them in any specific order, so the output is effectively random (although this has never bothered us until now). We need a specific order for our reference outputs, though. Unfortunately, just using a plain "sort" would change a lot of existing reference outputs, so we have to pre-filter the option keys to keep our existing order (fmt, size, backing*, data, encryption info, preallocation). Finally, this makes it difficult for _filter_img_create to automagically work for QMP output. Thus, this patch adds a separate _filter_img_create_for_qmp function that echos every line verbatim that does not start with "Formatting", and pipes those "Formatting" lines to _filter_img_create. [1] Actually, the only thing that is really important is whether encryption is enabled or not. A patch by Maxim thus removes all other "encrypt.*" options from the output: https://lists.nongnu.org/archive/html/qemu-block/2020-06/msg00339.html But that patch needs to come later so we can get away with changing as few reference outputs in this patch here as possible. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200625125548.870061-2-mreitz@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
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@ -5,7 +5,7 @@ QA output created by 112
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qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 refcount_bits=-1
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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qemu-img: TEST_DIR/t.IMGFMT: Refcount width must be a power of two and may not exceed 64 bits
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@ -68,7 +68,7 @@ test_blockjob()
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_send_qemu_cmd $QEMU_HANDLE \
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"$1" \
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"$2" \
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| _filter_img_create | _filter_qmp_empty_return
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| _filter_img_create_in_qmp | _filter_qmp_empty_return
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# We want this to return an error because the block job is still running
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_send_qemu_cmd $QEMU_HANDLE \
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@ -167,11 +167,10 @@ done
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echo
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echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir
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(
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}"
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}"
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b"
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) | _filter_img_create
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}" | _filter_img_create
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" | _filter_img_create
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$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" \
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| _filter_img_create
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echo
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echo "== Two devices sharing the same file in backing chain =="
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@ -122,38 +122,99 @@ _filter_actual_image_size()
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# replace driver-specific options in the "Formatting..." line
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_filter_img_create()
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{
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data_file_filter=()
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if data_file=$(_get_data_file "$TEST_IMG"); then
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data_file_filter=(-e "s# data_file=$data_file##")
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# Split the line into the pre-options part ($filename_part, which
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# precedes ", fmt=") and the options part ($options, which starts
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# with "fmt=")
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# (And just echo everything before the first "^Formatting")
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readarray formatting_line < <($SED -e 's/, fmt=/\n/')
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filename_part=''
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options=''
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lines=${#formatting_line[@]}
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for ((i = 0; i < $lines; i++)); do
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line=${formatting_line[i]}
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unset formatting_line[i]
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filename_part="$filename_part$line"
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if echo "$line" | grep -q '^Formatting'; then
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next_i=$((i + 1))
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if [ -n "${formatting_line[next_i]}" ]; then
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options="fmt=${formatting_line[@]}"
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fi
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break
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fi
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done
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# Set grep_data_file to '\|data_file' to keep it; make it empty
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# to drop it.
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# We want to drop it if it is part of the global $IMGOPTS, and we
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# want to keep it otherwise (if the test specifically wants to
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# test data files).
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grep_data_file=(-e data_file)
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if _get_data_file "$TEST_IMG" > /dev/null; then
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grep_data_file=()
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fi
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$SED "${data_file_filter[@]}" \
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filename_filters=(
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-e "s#$REMOTE_TEST_DIR#TEST_DIR#g" \
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-e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
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-e "s#$TEST_DIR#TEST_DIR#g" \
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-e "s#$SOCK_DIR#SOCK_DIR#g" \
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-e "s#$IMGFMT#IMGFMT#g" \
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-e 's#nbd:127.0.0.1:[0-9]\\+#TEST_DIR/t.IMGFMT#g' \
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-e 's#nbd+unix:///\??socket=SOCK_DIR/nbd#TEST_DIR/t.IMGFMT#g' \
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-e "s# encryption=off##g" \
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-e "s# cluster_size=[0-9]\\+##g" \
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-e "s# table_size=[0-9]\\+##g" \
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-e "s# compat=[^ ]*##g" \
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-e "s# compat6=\\(on\\|off\\)##g" \
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-e "s# static=\\(on\\|off\\)##g" \
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-e "s# zeroed_grain=\\(on\\|off\\)##g" \
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-e "s# subformat=[^ ]*##g" \
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-e "s# adapter_type=[^ ]*##g" \
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-e "s# hwversion=[^ ]*##g" \
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-e "s# lazy_refcounts=\\(on\\|off\\)##g" \
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-e "s# block_size=[0-9]\\+##g" \
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-e "s# block_state_zero=\\(on\\|off\\)##g" \
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-e "s# log_size=[0-9]\\+##g" \
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-e "s# refcount_bits=[0-9]\\+##g" \
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-e "s# key-secret=[a-zA-Z0-9]\\+##g" \
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-e "s# iter-time=[0-9]\\+##g" \
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-e "s# force_size=\\(on\\|off\\)##g" \
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-e "s# compression_type=[a-zA-Z0-9]\\+##g"
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-e 's#nbd+unix:///\??socket=SOCK_DIR/nbd#TEST_DIR/t.IMGFMT#g'
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)
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filename_part=$(echo "$filename_part" | $SED "${filename_filters[@]}")
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# Break the option line before each option (preserving pre-existing
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# line breaks by replacing them by \0 and restoring them at the end),
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# then filter out the options we want to keep and sort them according
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# to some order that all block drivers used at the time of writing
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# this function.
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options=$(
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echo "$options" \
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| tr '\n' '\0' \
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| $SED -e 's/ \([a-z0-9_.-]*\)=/\n\1=/g' \
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| grep -a -e '^fmt' -e '^size' -e '^backing' -e '^preallocation' \
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-e '^encrypt' "${grep_data_file[@]}" \
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| $SED "${filename_filters[@]}" \
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-e 's/^\(fmt\)/0-\1/' \
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-e 's/^\(size\)/1-\1/' \
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-e 's/^\(backing\)/2-\1/' \
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-e 's/^\(data_file\)/3-\1/' \
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-e 's/^\(encryption\)/4-\1/' \
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-e 's/^\(encrypt\.format\)/5-\1/' \
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-e 's/^\(encrypt\.key-secret\)/6-\1/' \
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-e 's/^\(encrypt\.iter-time\)/7-\1/' \
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-e 's/^\(preallocation\)/8-\1/' \
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| sort \
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| $SED -e 's/^[0-9]-//' \
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| tr '\n\0' ' \n' \
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| $SED -e 's/^ *$//' -e 's/ *$//'
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)
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if [ -n "$options" ]; then
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echo "$filename_part, $options"
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elif [ -n "$filename_part" ]; then
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echo "$filename_part"
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fi
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}
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# Filter the "Formatting..." line in QMP output (leaving the QMP output
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# untouched)
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# (In contrast to _filter_img_create(), this function does not support
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# multi-line Formatting output)
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_filter_img_create_in_qmp()
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{
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while read -r line; do
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if echo "$line" | grep -q '^Formatting'; then
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echo "$line" | _filter_img_create
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else
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echo "$line"
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fi
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done
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}
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_filter_img_create_size()
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