Choose site to run based on a list of fixed site codes

choose-site-to-run-expected.txt

❌ Error for site 'site1' because filter is 'gibberish'
✅ Testing site 'site1' because filter is ''
✅ Testing site 'site1' because filter is 'site1'
🙈 Skipping site 'site1' because filter is 'site2'
🙈 Skipping site 'site1' because filter is 'site3'
🙈 Skipping site 'site1' because filter is 'site4'

❌ Error for site 'site2' because filter is 'gibberish'
✅ Testing site 'site2' because filter is ''
🙈 Skipping site 'site2' because filter is 'site1'
✅ Testing site 'site2' because filter is 'site2'
🙈 Skipping site 'site2' because filter is 'site3'
🙈 Skipping site 'site2' because filter is 'site4'

❌ Error for site 'site3' because filter is 'gibberish'
✅ Testing site 'site3' because filter is ''
🙈 Skipping site 'site3' because filter is 'site1'
🙈 Skipping site 'site3' because filter is 'site2'
✅ Testing site 'site3' because filter is 'site3'
🙈 Skipping site 'site3' because filter is 'site4'

❌ Error for site 'site4' because filter is 'gibberish'
✅ Testing site 'site4' because filter is ''
🙈 Skipping site 'site4' because filter is 'site1'
🙈 Skipping site 'site4' because filter is 'site2'
🙈 Skipping site 'site4' because filter is 'site3'
✅ Testing site 'site4' because filter is 'site4'

choose-site-to-run-test.sh

#!/usr/bin/env bash

set -u

ACTION=./choose-site-to-run.sh
EXPECTED=./choose-site-to-run-expected.txt
RESULT=$(mktemp)

$ACTION > $RESULT
if diff -u $EXPECTED $RESULT; then
    echo "Success: all results match"
fi

choose-site-to-run.sh

#!/usr/bin/env bash

set -u

choose_site () {
    # choose_site_with_if ${1:-} ${2:-}
    # choose_site_with_case ${1:-} ${2:-}
    choose_site_with_guard ${1:-} ${2:-}
}

choose_site_with_if () {
    local SITE_CODE=${1:-}
    local FILTER=${2:-}

    if [[ "$FILTER" == "" || "$FILTER" == "$SITE_CODE" ]]; then
        echo "✅ Testing site '$SITE_CODE' because filter is '$FILTER'"
    elif [[ "$FILTER" == "site1" || "$FILTER" == "site2" || "$FILTER" == "site3" || "$FILTER" == "site4" ]]; then
        echo "🙈 Skipping site '$SITE_CODE' because filter is '$FILTER'"
    else
        echo "❌ Error for site '$SITE_CODE' because filter is '$FILTER'"
        # exit 1
    fi
}

choose_site_with_case () {
    local SITE_CODE=${1:-}
    local FILTER=${2:-}

    case $FILTER in
        "" | $SITE_CODE) 
            echo "✅ Testing site '$SITE_CODE' because filter is '$FILTER'";;
        site1 | site2 | site3 | site4) 
            echo "🙈 Skipping site '$SITE_CODE' because filter is '$FILTER'";;
        *) 
            echo "❌ Error for site '$SITE_CODE' because filter is '$FILTER'"
            # exit 1
            ;;
    esac
}

choose_site_with_guard () {
    local SITE_CODE=${1:-}
    local FILTER=${2:-}
    local ALLOWED_SITE_CODES="^(site1|site2|site3|site4)$"

    if ! [[ $FILTER == "" || "$FILTER" =~ $ALLOWED_SITE_CODES ]]; then
        echo "❌ Error for site '$SITE_CODE' because filter is '$FILTER'"
        return  # exit 1
    fi
    
    case $FILTER in
        "" | $SITE_CODE) echo "✅ Testing site '$SITE_CODE' because filter is '$FILTER'";;
        *) echo "🙈 Skipping site '$SITE_CODE' because filter is '$FILTER'";;
    esac
}

choose_site site1 gibberish
choose_site site1 
choose_site site1 site1
choose_site site1 site2
choose_site site1 site3
choose_site site1 site4
echo
choose_site site2 gibberish
choose_site site2 
choose_site site2 site1
choose_site site2 site2
choose_site site2 site3
choose_site site2 site4
echo
choose_site site3 gibberish
choose_site site3 
choose_site site3 site1
choose_site site3 site2
choose_site site3 site3
choose_site site3 site4
echo
choose_site site4 gibberish
choose_site site4 
choose_site site4 site1
choose_site site4 site2
choose_site site4 site3
choose_site site4 site4