image_types: Add 7-Zip support in conversion types and commands

Add 7-Zip support in conversion types and commands. Default arguments of
7-Zip are compression level: 9, method: BZip2, extension: 7z. All these are
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 in
multi-thread systems (on many CPU cores), normal zip is just a single
thread 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 Szőke <egyszeregy@freemail.hu>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/meta/classes-recipe/image_types.bbclass b/meta/classes-recipe/image_types.bbclass
index 764e6a5574c638845d43288b7c4070144164d523..ae00728a74da948bdece46082bafd54586b331cf 100644 (file)
--- a/meta/classes-recipe/image_types.bbclass
+++ b/meta/classes-recipe/image_types.bbclass
@@ -59,6 +59,10 @@ XZ_INTEGRITY_CHECK ?= "crc32"
 
 ZIP_COMPRESSION_LEVEL ?= "-9"
 
+7ZIP_COMPRESSION_LEVEL ?= "9"
+7ZIP_COMPRESSION_METHOD ?= "BZip2"
+7ZIP_EXTENSION ?= "7z"
+
 ZSTD_COMPRESSION_LEVEL ?= "-3"
 
 JFFS2_SUM_EXTRA_ARGS ?= ""
@@ -304,7 +308,7 @@ IMAGE_TYPES:append:x86-64 = " hddimg iso"
 # CONVERSION_CMD/DEPENDS.
 COMPRESSIONTYPES ?= ""
 
-CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip zst sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2 base64 gzsync zsync ${COMPRESSIONTYPES}"
+CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip 7zip zst sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap u-boot vmdk vhd vhdx vdi qcow2 base64 gzsync zsync ${COMPRESSIONTYPES}"
 CONVERSION_CMD:lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_CMD:gz = "gzip -f -9 -n -c --rsyncable ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
 CONVERSION_CMD:bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
@@ -312,6 +316,7 @@ CONVERSION_CMD:xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_DEFAULTS} --check=
 CONVERSION_CMD:lz4 = "lz4 -9 -z -l ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
 CONVERSION_CMD:lzo = "lzop -9 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_CMD:zip = "zip ${ZIP_COMPRESSION_LEVEL} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.zip ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
+CONVERSION_CMD:7zip = "7za a -mx=${7ZIP_COMPRESSION_LEVEL} -mm=${7ZIP_COMPRESSION_METHOD} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.${7ZIP_EXTENSION} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_CMD:zst = "zstd -f -k -T0 -c ${ZSTD_COMPRESSION_LEVEL} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.zst"
 CONVERSION_CMD:sum = "sumtool -i ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sum ${JFFS2_SUM_EXTRA_ARGS}"
 CONVERSION_CMD:md5sum = "md5sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.md5sum"
@@ -337,6 +342,7 @@ CONVERSION_DEPENDS_xz = "xz-native"
 CONVERSION_DEPENDS_lz4 = "lz4-native"
 CONVERSION_DEPENDS_lzo = "lzop-native"
 CONVERSION_DEPENDS_zip = "zip-native"
+CONVERSION_DEPENDS_7zip = "p7zip-native"
 CONVERSION_DEPENDS_zst = "zstd-native"
 CONVERSION_DEPENDS_sum = "mtd-utils-native"
 CONVERSION_DEPENDS_bmap = "bmap-tools-native"