sig_cloud/diskimage-builder
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Combine compress and save image into one function

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When compressing an image, this is done in the same dir where the raw
image resides, doubling the amount of space needed (scarce when
using tmpfs), and then it's moved to the .cache folder in disk.

Combining these two functions, we reduce the amount of space needed
in the tmpfs partition (when in use), and the compressed image is
created directly on the .cache folder disk, so there is no need to
move the compressed image after the process into disk.

Change-Id: I451d24bdd6fa0983414244135dff5e96c0549833
This commit is contained in:
Ghe Rivero 2013-08-26 09:59:41 +00:00
parent 6687bdd267
commit dbfca7a816
2 changed files with 5 additions and 5 deletions
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3
bin/disk-image-create
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@ -148,8 +148,7 @@ finalise_base
unmount_image
if [ "$IS_RAMDISK" == "0" ]; then
compress_image
save_image $IMAGE_NAME.$IMAGE_TYPE
compress_and_save_image $IMAGE_NAME.$IMAGE_TYPE
else
remove_image
fi

7
lib/img-functions
View File

@ -106,12 +106,13 @@ function finalise_base () {
fi
}
function compress_image () {
function compress_and_save_image () {
# Recreate our image to throw away unnecessary data
test $IMAGE_TYPE != qcow2 && COMPRESS_IMAGE=""
qemu-img convert ${COMPRESS_IMAGE:+-c} -f raw $TMP_IMAGE_PATH -O $IMAGE_TYPE $TMP_IMAGE_PATH-new
qemu-img convert ${COMPRESS_IMAGE:+-c} -f raw $TMP_IMAGE_PATH -O $IMAGE_TYPE $1-new
rm $TMP_IMAGE_PATH
mv $TMP_IMAGE_PATH-new $TMP_IMAGE_PATH
TMP_IMAGE_PATH=$1-new save_image $1
}
function remove_image () {