52 lines
753 B
Bash
52 lines
753 B
Bash
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#!/bin/bash
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# Increment a version string using Semantic Versioning (SemVer) terminology.
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# Parse command line options.
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while getopts ":Mmp" Option
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do
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case $Option in
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M ) major=true;;
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m ) minor=true;;
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p ) patch=true;;
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esac
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done
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shift $(($OPTIND - 1))
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version=$1
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# Build array from version string.
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a=( ${version//./ } )
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# If version string is missing or has the wrong number of members, show usage message.
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if [ ${#a[@]} -ne 3 ]
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then
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>&2 echo "usage: $(basename $0) [-Mmp] major.minor.patch"
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exit 1
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fi
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# Increment version numbers as requested.
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if [ ! -z $major ]
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then
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((a[0]++))
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a[1]=0
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a[2]=0
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fi
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if [ ! -z $minor ]
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then
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((a[1]++))
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a[2]=0
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fi
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if [ ! -z $patch ]
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then
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((a[2]++))
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fi
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echo "${a[0]}.${a[1]}.${a[2]}"
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