Remove metadata from unlocked packages

remove_metadata.js

metadataElements = [{
    name: 'CGS Score',
    metadataType : 'Custom Field', 
    parentObject : 'Account' // can be undefined

},
{
    name: 'Rating Value',
    metadataType : 'Custom Field', 
    parentObject : 'Account' // can be undefined

}];

function buildPackageRemovalUrl(jsCode){
    decodedJs = decodeURI(jsCode);
    location_index = decodedJs.indexOf('window.location');
    window_location_prefix_length = "window.location%3D".length;
    end_url_index = decodedJs.lastIndexOf('\'');
    location_url = decodedJs.substring(location_index + window_location_prefix_length, end_url_index+1);
    decoded_location_url = decodeURIComponent(location_url);
    return decoded_location_url.substring(1,decoded_location_url.length -1);
}

function isRightMetadataElement(field, parentObjectTdText, metadataTypeTdText){
    let isRight = true;
    if(parentObjectTdText !='' && !field.parentObject || field.parentObject !== parentObjectTdText )
    {
        isRight = false;
    }
    if(field.metadataType != metadataTypeTdText)
        isRight = false;
    return isRight;
}

function removeMetadataElementFromPackage(field, node){
    node = document.evaluate('//a[text()="' + field.name + '"]',document);
    componentDetailHref = node.iterateNext();
    while (componentDetailHref != null){
        row = componentDetailHref.parentNode.parentNode
        parentObject = document.evaluate('td[2]',row).iterateNext().textContent;
        metadataType = document.evaluate('td[3]',row).iterateNext().textContent;
        if(isRightMetadataElement(field, parentObject, metadataType)){
            removeActionHref = row.firstElementChild.firstElementChild;
            jsCode = removeActionHref.attributes['href'].value;             
            decoded_location_url = buildPackageRemovalUrl(jsCode);
            console.log('Opening new window at ' + decoded_location_url + ' for field ' + JSON.stringify(field));
            window.open(decoded_location_url);
        }else
        {
            console.log(row + ' does not contain value for field ' + JSON.stringify(field) + ' moving forward');
        }    
        componentDetailHref = node.iterateNext();
    }
}

metadataElements.forEach( metadataElement => {
    removeMetadataElementFromPackage(metadataElement);    
});