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Use json format when calling qemu-img

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Switch from using the default human readable format to request the json
format from qemu-img as this will provide disk sizes in bytes.

This avoids assuming that the returned size is in GigaBytes.

Fixes #743
This commit is contained in:
Darragh Bailey
2017-03-20 13:23:48 +00:00
parent ea99e07ac1
commit 1633ec25f1
2 changed files with 3 additions and 2 deletions
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2
tools/create_box.sh
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@@ -88,7 +88,7 @@ cd "$TMP_DIR"
#Using the awk int function here to truncate the virtual image size to an
#integer since the fog-libvirt library does not seem to properly handle
#floating point.
IMG_SIZE=$(qemu-img info "$TMP_IMG" | awk '/virtual size/{print int($3)+1;}' | tr -d 'G')
IMG_SIZE=$(qemu-img info --output=json "$TMP_IMG" | awk '/virtual-size/{s=int($2)/(1024^3); print (s == int(s)) ? s : int(s)+1 }')
echo "{$IMG_SIZE}"