[oe-commits] [openembedded-core] 01/20: image_types.bbclass: ignore tar exit code 1

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit b84e4769748944649cd9887354a463576a9f3463
Author: Ed Bartosh <ed.bartosh at linux.intel.com>
AuthorDate: Fri Jul 28 12:29:22 2017 +0300

    image_types.bbclass: ignore tar exit code 1
    
    tar exists with 1 and produces warning "file changed as we read it"
    if content is changed while tar archives it. Even hardlinking content
    causes tar to fail this way as it changes file ctime.
    
    Other tasks running in parallel with do_image_tar may need to hardlink
    rootfs content in order to change it, e.g. do_image_wic does this to
    update etc/fstab.
    
    Ignored tar exit code 1 to be able to hardlink rootfs content while
    do_rootfs_tar is tarring it.
    
    [RP: Removed bashism]
    
    Signed-off-by: Ed Bartosh <ed.bartosh at linux.intel.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/classes/image_types.bbclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index cf946a6..ae4ed4f 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -119,7 +119,8 @@ IMAGE_CMD_squashfs-lzo = "mksquashfs ${IMAGE_ROOTFS} ${IMGDEPLOYDIR}/${IMAGE_NAM
 # In practice, it turned out to be not needed when creating archives and
 # required when extracting, but it seems prudent to use it in both cases.
 IMAGE_CMD_TAR ?= "tar"
-IMAGE_CMD_tar = "${IMAGE_CMD_TAR} -cvf ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.tar -C ${IMAGE_ROOTFS} ."
+# ignore return code 1 "file changed as we read it" as other tasks(e.g. do_image_wic) may be hardlinking rootfs
+IMAGE_CMD_tar = "${IMAGE_CMD_TAR} -cf ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.tar -C ${IMAGE_ROOTFS} . || [ $? -eq 1 ]"
 
 do_image_cpio[cleandirs] += "${WORKDIR}/cpio_append"
 IMAGE_CMD_cpio () {

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