[master,v3] image_types: Add 7-Zip support in conversion types and commands

s=20181004; d=freemail.hu;

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From: Benjamin Sz=C5=91ke <egyszeregy@freemail.hu>

Add 7-Zip support in conversion types and commands. Default arguments of =
7-Zip are compression level: 9, method: BZip2, extension: 7z. All these a=
re overridable from local.con for any other use case in user side. First =
goal was to make an alternative zip conversion which can operate faster i=
n multi-thread systems (on many CPU cores), normal zip is just a single t=
hread compression. 7-Zip can do a compression in multi-thread processing,=
 so it is fine to use and speed up it and 7-Zip is supported also in many=
 platform to use.

Signed-off-by: Benjamin Sz=C5=91ke <egyszeregy@freemail.hu>
---
 meta/classes-recipe/image_types.bbclass | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

 qcow2 base64 gzsync zsync ${COMPRESSIONTYPES}"
 CONVERSION_CMD:lzma =3D "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}=
.${type}"
 CONVERSION_CMD:gz =3D "gzip -f -9 -n -c --rsyncable ${IMAGE_NAME}${IMAGE=
_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
 CONVERSION_CMD:bz2 =3D "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$=
{type}"
@@ -312,6 +316,7 @@ CONVERSION_CMD:xz =3D "xz -f -k -c ${XZ_COMPRESSION_L=
EVEL} ${XZ_DEFAULTS} --check=3D
 CONVERSION_CMD:lz4 =3D "lz4 -9 -z -l ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$=
{type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
 CONVERSION_CMD:lzo =3D "lzop -9 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type=
}"
 CONVERSION_CMD:zip =3D "zip ${ZIP_COMPRESSION_LEVEL} ${IMAGE_NAME}${IMAG=
E_NAME_SUFFIX}.${type}.zip ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
+CONVERSION_CMD:7zip =3D "7za a -mx=3D${7ZIP_COMPRESSION_LEVEL} -mm=3D${7=
ZIP_COMPRESSION_METHOD} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.${7ZIP_=
EXTENSION} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_CMD:zst =3D "zstd -f -k -T0 -c ${ZSTD_COMPRESSION_LEVEL} ${IM=
AGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}=
.${type}.zst"
 CONVERSION_CMD:sum =3D "sumtool -i ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${t=
ype} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sum ${JFFS2_SUM_EXTRA_A=
RGS}"
 CONVERSION_CMD:md5sum =3D "md5sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${ty=
pe} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.md5sum"
@@ -337,6 +342,7 @@ CONVERSION_DEPENDS_xz =3D "xz-native"
 CONVERSION_DEPENDS_lz4 =3D "lz4-native"
 CONVERSION_DEPENDS_lzo =3D "lzop-native"
 CONVERSION_DEPENDS_zip =3D "zip-native"
+CONVERSION_DEPENDS_7zip =3D "p7zip-native"
 CONVERSION_DEPENDS_zst =3D "zstd-native"
 CONVERSION_DEPENDS_sum =3D "mtd-utils-native"
 CONVERSION_DEPENDS_bmap =3D "bmap-tools-native"
--=20
2.38.1.windows.1