[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7459/8267] image_types.bbclass: improve reproducibility of .gz files

[Emmanuele Bassi <ebassi src gnome org>]

commit 52d71c17ffd2d58699bf05bc85e0dd0d49e51021
Author: Juro Bystricky <juro bystricky intel com>
Date:   Mon Aug 28 13:28:25 2017 -0700

    image_types.bbclass: improve reproducibility of .gz files
    
    When compressing with "gzip", do not save the time stamp in
    the compressed file metadata.
    
    (From OE-Core rev: a88c16c2dc5dd7e2fbf7ca908a8b48da7be8b34c)
    
    Signed-off-by: Juro Bystricky <juro bystricky intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/image_types.bbclass |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index e0368c7..9b646e9 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -268,7 +268,7 @@ COMPRESSIONTYPES ?= ""
 
 CONVERSIONTYPES = "gz bz2 lzma xz lz4 lzo zip sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum 
bmap u-boot vmdk vdi qcow2 ${COMPRESSIONTYPES}"
 CONVERSION_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
-CONVERSION_CMD_gz = "gzip -f -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > 
${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
+CONVERSION_CMD_gz = "gzip -f -9 -n -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > 
${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
 CONVERSION_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
 CONVERSION_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"
 CONVERSION_CMD_lz4 = "lz4 -9 -z ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} 
${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"