#!/bin/sh
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# prevent shift error
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[ $# -lt 2 ] && exit 1
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major_min="${1%.*}"
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minor_min="${1#*.}"
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shift
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for candidate; do
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# Try to locate the candidate. Discard it if not located.
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cmake=`which "${candidate}" 2>/dev/null`
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[ -n "${cmake}" ] || continue
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# Extract version X.Y from versions in the form X.Y or X.Y.Z
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# with X, Y and Z numbers with one or more digits each, e.g.
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# 3.2 -> 3.2
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# 3.2.3 -> 3.2
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# 3.2.42 -> 3.2
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# 3.10 -> 3.10
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# 3.10.4 -> 3.10
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# 3.10.42 -> 3.10
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# Discard the candidate if no version can be obtained
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version="$(${cmake} --version \
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|sed -r -e '/.* ([[:digit:]]+\.[[:digit:]]+).*$/!d;' \
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-e 's//\1/'
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)"
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[ -n "${version}" ] || continue
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major="${version%.*}"
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minor="${version#*.}"
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if [ ${major} -gt ${major_min} ]; then
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echo "${cmake}"
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exit
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elif [ ${major} -eq ${major_min} -a ${minor} -ge ${minor_min} ]; then
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echo "${cmake}"
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exit
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fi
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done
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# echo nothing: no suitable cmake found
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exit 1
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