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scripts/getver.sh: prevent asking for negative rev-parse
With the case of asking an invalid version that is too big, getver.sh might return an invalid output in the form of HEAD~-2260475641. This is caused by BASE_REV - GET_REV using a negative number. Prevent this by checking if BASE_REV - GET_REV actually return 0 or a positive number and set REV variable accordingly. With the following change, invalid revision number will result in unknown printed instead of the invalid HEAD~-NUMBERS output. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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@ -21,7 +21,7 @@ try_git() {
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r*)
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r*)
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GET_REV="$(echo $GET_REV | tr -d 'r')"
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GET_REV="$(echo $GET_REV | tr -d 'r')"
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BASE_REV="$(git rev-list ${REBOOT}..HEAD 2>/dev/null | wc -l | awk '{print $1}')"
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BASE_REV="$(git rev-list ${REBOOT}..HEAD 2>/dev/null | wc -l | awk '{print $1}')"
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REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
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[ $((BASE_REV - GET_REV)) -ge 0 ] && REV="$(git rev-parse HEAD~$((BASE_REV - GET_REV)))"
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;;
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;;
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*)
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*)
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BRANCH="$(git rev-parse --abbrev-ref HEAD)"
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BRANCH="$(git rev-parse --abbrev-ref HEAD)"
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