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Fix for unzip on OSX

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Bash<4.2 doesn't support negative offset

OSX 10 Sierra is delivered with Bash 3.2 so it can't extract the
'.gz'-less filename for unzipping.

OSX and old Bash:
https://www.reddit.com/r/bash/comments/393oqv/why_is_the_version_of_bash_included_in_os_x_so_old/

Negativ offsets and compatibility:
http://tldp.org/LDP/abs/html/abs-guide.html#NEGOFFSET

You can create a better removal tool based on this guide:
http://tldp.org/LDP/abs/html/string-manipulation.html
This commit is contained in:
Zoltan Takacs 2017-10-25 11:07:12 +02:00
parent 9fc0451def
commit 30c36c81a8
1 changed files with 2 additions and 2 deletions
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4
writeimage.sh
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@ -80,8 +80,8 @@ gunzip=$(which unpigz 2> /dev/null || which gunzip 2> /dev/null)
if [[ $DISK_IMG == *.gz ]]; then
msg "decompressing the gzipped image"
$gunzip -c $DISK_IMG > ${DISK_IMG::-3}
DISK_IMG=${DISK_IMG::-3}
$gunzip -c $DISK_IMG > ${DISK_IMG%???}
DISK_IMG=${DISK_IMG%???}
fi
umount ${SDCARD_DEV}* 2>/dev/null || true