[OE-core] [PATCH] image_types: use compress framework to produce checksums for images

[Alexander D. Kanevskiy]

Existing compress framework for producing various compressed versions
of images is powerfull enough to be extended for other uses, e.g. to
convert types of images.

It is possible to use it also to produce image checksums at the time
of image generation. This commit adds support for all supported
at the moment coreutils hashing algorithms: md5, sha1, sha224,
sha256, sha384 and sha512

Usage:
IMAGE_FSTYPES_append = " hddimg.sha256sum"

Signed-off-by: Alexander D. Kanevskiy <kad at kad.name>
---
 meta/classes/image_types.bbclass | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 22719ad..3e98024 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -259,13 +259,19 @@ IMAGE_TYPES = " \
     wic wic.gz wic.bz2 wic.lzma \
 "
 
-COMPRESSIONTYPES = "gz bz2 lzma xz lz4 sum"
+COMPRESSIONTYPES = "gz bz2 lzma xz lz4 sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum"
 COMPRESS_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 COMPRESS_CMD_gz = "gzip -f -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
 COMPRESS_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 COMPRESS_CMD_xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_THREADS} --check=${XZ_INTEGRITY_CHECK} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.xz"
 COMPRESS_CMD_lz4 = "lz4c -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
 COMPRESS_CMD_sum = "sumtool -i ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sum ${JFFS2_SUM_EXTRA_ARGS}"
+COMPRESS_CMD_md5sum = "md5sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.md5sum"
+COMPRESS_CMD_sha1sum = "sha1sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha1sum"
+COMPRESS_CMD_sha224sum = "sha224sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha224sum"
+COMPRESS_CMD_sha256sum = "sha256sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha256sum"
+COMPRESS_CMD_sha384sum = "sha384sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha384sum"
+COMPRESS_CMD_sha512sum = "sha512sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha512sum"
 COMPRESS_DEPENDS_lzma = "xz-native"
 COMPRESS_DEPENDS_gz = ""
 COMPRESS_DEPENDS_bz2 = "pbzip2-native"
-- 
2.7.4