Do not compress output image for uncompressed input image

Respecting this way always the input type (compressed or not) by
default, allowing the user to override behaviour if desired.

For the tests, removed the unnecessary duplication on rerunning all
tests on uncompressed versions, and added instead an explicit test only
for qemu-x86_64.

Changelog: Title

Signed-off-by: Lluis Campos <lluis.campos@northern.tech>

mender-convert

@@ -123,10 +123,10 @@ parse_cli_options "$@"
 compression_type=$(compression_type "${disk_image}")
 if [[ ${compression_type} != "none" ]]; then
   uncompressed_disk_image=$(decompress_image "${disk_image}" "./work")
-  echo "MENDER_COMPRESS_DISK_IMAGE=${compression_type}" > ${ocfile}
-  prepend_extraargs="--config ${ocfile}"
   append_extraargs="--disk-image ${uncompressed_disk_image}"
 fi
+echo "MENDER_COMPRESS_DISK_IMAGE=${compression_type}" > ${ocfile}
+prepend_extraargs="--config ${ocfile}"
 
 ./mender-convert-extract ${prepend_extraargs} "$@" ${append_extraargs}
 ./mender-convert-modify  ${prepend_extraargs} "$@" ${append_extraargs}

scripts/test/run-tests.sh

@@ -61,10 +61,12 @@ else
     echo >&2 "----------------------------------------"
     rm -rf deploy
     gunzip --force "input/Ubuntu-Bionic-x86-64.img.gz"
-    convert_and_test "qemux86_64" \
+    run_convert "release-2" \
-                     "release-1" \
                 "input/Ubuntu-Bionic-x86-64.img" \
                 "--config configs/qemux86-64_config" || test_result=$?
+    ret=0
+    test -f deploy/Ubuntu-Bionic-x86-64-qemux86_64-mender.img || ret=$?
+    assert "${ret}" "0" "Expected uncompressed file deploy/Ubuntu-Bionic-x86-64-qemux86_64-mender.img"
   fi
 
   if [ "$1" == "--all" -o "$1" == "--only" -a "$2" == "raspberrypi3" ]; then
@@ -73,16 +75,6 @@ else
                      "release-1" \
                      "input/2019-09-26-raspbian-buster-lite.zip" \
                      "--config configs/raspberrypi3_config" || test_result=$?
-
-    echo >&2 "----------------------------------------"
-    echo >&2 "Running the uncompressed test"
-    echo >&2 "----------------------------------------"
-    rm -rf deploy
-    unzip -o "input/2019-09-26-raspbian-buster-lite.zip" -d "./input"
-    convert_and_test "raspberrypi3" \
-                     "release-1" \
-                     "input/2019-09-26-raspbian-buster-lite.img" \
-                     "--config configs/raspberrypi3_config" || test_result=$?
   fi
 
   if [ "$1" == "--all" -o "$1" == "--only" -a "$2" == "linaro-alip" ]; then
@@ -101,17 +93,6 @@ else
                      "release-1" \
                      "input/bone-debian-10.3-iot-armhf-2020-04-06-4gb.img.xz" \
                      "--config configs/beaglebone_black_debian_sdcard_config" || test_result=$?
-
-    echo >&2 "----------------------------------------"
-    echo >&2 "Running the uncompressed test"
-    echo >&2 "----------------------------------------"
-    rm -rf deploy
-    wget --progress=dot:giga -N ${BBB_DEBIAN_EMMC_IMAGE_URL} -P input/
-    unxz --force "input/bone-debian-10.5-console-armhf-2020-09-21-1gb.img.xz"
-    convert_and_test "beaglebone-emmc" \
-                     "release-1" \
-                     "input/bone-debian-10.5-console-armhf-2020-09-21-1gb.img" \
-                     "--config configs/beaglebone_black_debian_emmc_config" || test_result=$?
   fi
 
   if [ "$1" == "--all" -o "$1" == "--only" -a "$2" == "ubuntu" ]; then
@@ -120,16 +101,6 @@ else
                      "release-1" \
                      "input/ubuntu-18.04.5-preinstalled-server-armhf+raspi3.img.xz" \
                      "--config configs/raspberrypi3_config" || test_result=$?
-
-    echo >&2 "----------------------------------------"
-    echo >&2 "Running the uncompressed test"
-    echo >&2 "----------------------------------------"
-    rm -rf deploy
-    unxz --force "input/ubuntu-18.04.5-preinstalled-server-armhf+raspi3.img.xz"
-    convert_and_test "raspberrypi3" \
-                     "release-1" \
-                     "input/ubuntu-18.04.5-preinstalled-server-armhf+raspi3.img" \
-                     "--config configs/raspberrypi3_config" || test_result=$?
   fi
 
   exit $test_result

scripts/test/test-utils.sh

@@ -105,14 +105,6 @@ run_tests() {
     html_report_args="--html=${MENDER_CONVERT_DIR}/report_${device_type}.html --self-contained-html"
   fi
 
-  # Need to decompress images built with MENDER_COMPRESS_DISK_IMAGE=gzip before
-  # running tests.
-  if [ -f "deploy/${converted_image_name}.img.gz" ]; then
-    # sudo is needed because the image is created using docker-mender-convert
-    # which sets root permissions on the image
-    sudo gunzip --force "deploy/${converted_image_name}.img.gz"
-  fi
-
   # MEN-3051: Rename the files back to .sdimg, as the sdimg extension has meaning
   # in the test-infrastructure.
   for file in ${MENDER_CONVERT_DIR}/deploy/*.img; do