Bash script to check a Pantheon plugin's Tested Up To value against its fixture site's WordPress version and the current WordPress version.

validate-fixture-version.sh

#!/bin/bash
set -euo pipefail
IFS=$'\n\t'

main(){
    export TERMINUS_HIDE_GIT_MODE_WARNING=1
    local DIRNAME
    DIRNAME=$(dirname "$0")

    local CURRENT_WP_VERSION
    CURRENT_WP_VERSION=$(curl -s https://api.wordpress.org/core/version-check/1.7/ | jq -r '.offers[0].current')
    echo "Current WordPress Version: ${CURRENT_WP_VERSION}"

    if [ -z "${TERMINUS_SITE}" ]; then
        echo "TERMINUS_SITE environment variable must be set"
        exit 1
    fi

    if ! terminus whoami > /dev/null; then
        if [ -z "${TERMINUS_TOKEN}" ]; then
            echo "TERMINUS_TOKEN environment variable must be set or terminus already logged in."
            exit 1
        fi
        terminus auth:login --machine-token="${TERMINUS_TOKEN}"
    fi

    # Use find to locate the file with a case-insensitive search
    README_FILE_PATH=$(find "${DIRNAME}"/.. -iname "readme.txt" -print -quit)
    if [[ -z "$README_FILE_PATH" ]]; then
        echo "readme.txt not found."
        exit 1
    fi

    local TESTED_UP_TO
    TESTED_UP_TO=$(grep -i "Tested up to:" "${README_FILE_PATH}" | tr -d '\r\n' | awk -F ': ' '{ print $2 }')
    echo "Tested Up To: ${TESTED_UP_TO}"
    local FIXTURE_VERSION
    FIXTURE_VERSION=$(terminus wp "${TERMINUS_SITE}.dev" -- core version)
    echo "Fixture Version: ${FIXTURE_VERSION}"

    local FIXTURE_VERSION_COMPARE
    FIXTURE_VERSION_COMPARE=$(php -r "exit(version_compare('${FIXTURE_VERSION}', '${CURRENT_WP_VERSION}'));")
    if [[ $FIXTURE_VERSION_COMPARE -eq -1 ]]; then
        echo "Fixture Version: ${FIXTURE_VERSION} is less than Current WordPress Version: ${CURRENT_WP_VERSION}"
        echo "Applying upstream updates on ${TERMINUS_SITE}"
        terminus upstream:updates:apply
    fi

    local WP_VERSION_COMPARE
    WP_VERSION_COMPARE=$(php -r "exit(version_compare('${TESTED_UP_TO}', '${CURRENT_WP_VERSION}'));")

    if [[ $WP_VERSION_COMPARE -eq 0 ]]; then
    	echo "Tested Up To: ${TESTED_UP_TO} matches Current WordPress Version: ${CURRENT_WP_VERSION}"
    elif [[ $WP_VERSION_COMPARE -eq 1 ]]; then
    	echo "Tested Up To: ${TESTED_UP_TO} is greater than Current WordPress Version: ${CURRENT_WP_VERSION}"
    else
    	echo "Tested Up To: ${TESTED_UP_TO} does not match Current WordPress Version: ${CURRENT_WP_VERSION}"
    	echo "Please update ${TESTED_UP_TO} to ${CURRENT_WP_VERSION}"
    	exit 1
    fi

    local VERSION_COMPARE
    VERSION_COMPARE=$(php -r "exit(version_compare('${TESTED_UP_TO}', '${FIXTURE_VERSION}'));")

    if [[ $VERSION_COMPARE -eq 0 ]]; then
    	echo "Tested Up To: ${TESTED_UP_TO} matches Fixture Version: ${FIXTURE_VERSION}"
    	exit 0
    fi

    if [[ $VERSION_COMPARE -eq -1 ]]; then
    	echo "${TESTED_UP_TO} is less than ${FIXTURE_VERSION}"
    	echo "Please update ${TESTED_UP_TO} to ${FIXTURE_VERSION}"
    	exit 1
    fi

    if [[ $VERSION_COMPARE -eq 1 ]]; then
    	echo "${FIXTURE_VERSION} is less than ${TESTED_UP_TO}"

        # Extract major and minor version numbers from the current version
        read -r CURRENT_MAJOR CURRENT_MINOR <<<$(echo "$CURRENT_WP_VERSION" | awk -F. '{print $1, $2}')

        # Predict the next major version (increment minor version by 1)
        NEXT_MAJOR_VERSION="${CURRENT_MAJOR}.$((${CURRENT_MINOR}+1))"

        # Compare TESTED_UP_TO with the predicted next major version
        if [[ "$TESTED_UP_TO" == "$NEXT_MAJOR_VERSION" ]]; then
            echo "Tested Up To: ${TESTED_UP_TO} is the next major version after the Current WordPress Version: ${CURRENT_WP_VERSION}"
            echo "Ensure you have validated that the plugin works on the next major version of WordPress or update ${TERMINUS_SITE} to a pre-release version."
        else
            echo "Tested Up To: ${TESTED_UP_TO} is not the next major version (${NEXT_MAJOR_VERSION}). This seems like an error. Please review."
            exit 1
        fi
    fi
}

main

Hi Chris! I forked this to fix an issue we hit in CI.

When the fixture site's WP version falls behind the current release, version_compare() returns -1. Using exit() to capture that value sets the process exit code to 255 (bash wraps -1), which causes the script to terminate before reaching the comparison logic. Switching to echo lets the value get assigned to the variable so the if block can evaluate it as intended.

Fork with the fix: https://gist.github.com/AnaisPantheor/6f9a3360216b35b2a52cd82c887b1f9f