isversion.sh

isversion.sh

#!/usr/bin/env bash

isversion() {
  if [[ $# -lt 2 ]] ; then
    local opd='`=`'
    local ops='`<` or `>` or `=`'

    echo "usage: $0 <versions> <versions> [operator=$opd]"
    echo -e "\tversions - Versions to compare"
    echo -e "\toperator - Operator to compare, $ops. Default to $opd."
    exit 1
  fi

  local arg1=$(echo $1 | cut -d'(' -f1)
  local arg2=$(echo $2 | cut -d'(' -f1)
  local comp=${3:-=}
  local ret=0
  local op=-1

  if [ "$arg1" != "$arg2" ]; then
    local i

    local IFS=.
    local ver1=($arg1)
    local ver2=($arg2)

    for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)); do
      ver1[i]=0
    done

    for ((i=0; i<${#ver1[@]}; i++)); do
      if [[ $ret = 0 ]]; then
        if [[ -z ${ver2[i]} ]]; then
          ver2[i]=0
        fi

        if ((10#${ver1[i]} > 10#${ver2[i]})); then
          ret=1
        fi

        if ((10#${ver1[i]} < 10#${ver2[i]})); then
          ret=2
        fi
      fi
    done
  fi

  case $ret in
    0) op='=';;
    1) op='>';;
    2) op='<';;
  esac

  [[ $op != $comp ]] && return 1

  return 0
}

if [[ $# -ne 0 ]] ; then
  isversion $@
  exit $?
fi

isversion.test.sh

#!/usr/bin/env bash

this=$(basename $0)
func=${this%".test.sh"}
file="$(dirname $0)/$func.sh"

if [ ! -f "$file" ]; then
  echo "$file: File not found"
  exit 1
fi

\. "$file"

if [[ $(type -t $func) != function ]]; then
  echo "$func: Function not found"
  exit 0
fi

while read -r test; do
  $func $test || exit 1
done << EOF
1            1            =
2.1          2.2          <
3.0.4.10     3.0.4.2      >
4.08         4.08.01      <
3.2.1.9.8144 3.2          >
3.2          3.2.1.9.8144 <
1.2          2.1          <
2.1          1.2          >
5.6.7        5.6.7        =
1.01.1       1.1.1        =
1.1.1        1.01.1       =
1            1.0          =
1.0          1            =
1.0.2.0      1.0.2        =
1..0         1.0          =
1.0          1..0         =
5.0      5.0.0(1)-release =
EOF

exit 0