check for blosc on macos 12

bloscSearch.sh

#!/bin/bash

isMac12 () {
    hasSwVers=$(command -v sw_vers)

    if [ ! -z $hasSwVers  ]
    then
        ver=$(sw_vers | grep -Eo '[0-9]+\.[0-9]+\.[0-9]+')
        if [[ $ver =~ ^12\..* ]]
        then
            echo "is macos 12"
        fi
    fi  

    echo "is not macos 12"
}

hasHomebrewBlosc() {
    hasBrew=$(command -v brew)
    echo $hasBrew

    if [ ! -z $hasBrew ]
    then
        echo "homebrew found"
        echo "checking for c-blosc"
        brew search c-blosc
        hasBlosc="$?"
        if [[ $hasBlosc == "0" ]]
        then
            echo "success"
        else
            echo "c-blosc not found, install with:"
            echo "  brew install c-blosc"
        fi
    else
        echo "no homebrew found"
    fi
}

hasCondaBlosc () {
    hasConda=$(command -v conda)
    echo $hasConda

    if [ ! -z $hasConda ]
    then
        echo "conda found"
        echo "checking for blosc"
        conda info | grep 'active environment'
        condaHasBlosc=$(conda list | grep blosc)
        if [[ ! -z $condaHasBlosc ]]
        then
            echo "success"
            conda info | grep 'active env location'
        else
            echo "blosc not found, install with:"
            echo "  conda install blosc"
        fi
    else
        echo "no conda found"
    fi

}
isMac12
echo " "
hasHomebrewBlosc
echo " " 
hasCondaBlosc