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Check for write permission to image before boxing.

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This commit is contained in:
Jakob Aarøe Dam 2015-03-17 10:27:04 +01:00
parent 88991f0c1c
commit e7c7d70c3a
1 changed files with 4 additions and 0 deletions
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4
tools/create_box.sh
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@ -1,4 +1,5 @@
#!/usr/bin/env bash
#set -xu
error() {
local msg="${1}"
@ -59,6 +60,8 @@ TMP_IMG="$TMP_DIR/box.img"
mkdir -p "$TMP_DIR"
[[ ! -w "$IMG" ]] && error "'$IMG': Permission denied"
# We move / copy (when the image has master) the image to the tempdir
# ensure that it's moved back / removed again
if [[ -n $(backing "$IMG") ]]; then
@ -67,6 +70,7 @@ if [[ -n $(backing "$IMG") ]]; then
cp "$IMG" "$TMP_IMG"
rebase "$TMP_IMG"
else
# move the image to get a speed-up and use less space on disk
trap 'mv "$TMP_IMG" "$IMG"; rm -rf "$TMP_DIR"' EXIT
mv "$IMG" "$TMP_IMG"
fi