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#!/bin/bash
# given in disk version information, return 0 if an update is available
NEED_UPDATE=false
VERFILE=/var/run/.ncp-latest-version
if test -f $VERFILE && grep -qP "v\d+\.\d+\.\d+" $VERFILE; then
MAJOR=$( grep -oP "\d+\.\d+\.\d+" $VERFILE | cut -d. -f1 )
MINOR=$( grep -oP "\d+\.\d+\.\d+" $VERFILE | cut -d. -f2 )
PATCH=$( grep -oP "\d+\.\d+\.\d+" $VERFILE | cut -d. -f3 )
MAJ=$( grep -oP "\d+\.\d+\.\d+" /usr/local/etc/ncp-version | cut -d. -f1 )
MIN=$( grep -oP "\d+\.\d+\.\d+" /usr/local/etc/ncp-version | cut -d. -f2 )
PAT=$( grep -oP "\d+\.\d+\.\d+" /usr/local/etc/ncp-version | cut -d. -f3 )
if [[ $MAJOR > $MAJ ]]; then
NEED_UPDATE=true
elif [[ $MAJOR == $MAJ ]] && [[ $MINOR > $MIN ]]; then
NEED_UPDATE=true
elif [[ $MAJOR == $MAJ ]] && [[ $MINOR == $MIN ]] && [[ $PATCH > $PAT ]]; then
NEED_UPDATE=true
fi
fi
[[ "$NEED_UPDATE" == "true" ]] && exit 0
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