add-disable-eslint-comment.js

const ESLINT_RULE_NAME = 'intercom/no-mockjax';
const AST_TYPE = 'MemberExpression';

function shouldAddDisableComment(path) {
  return path.object && path.object.name === '$' && path.property.name === 'mockjax';
}

function closestAncestorOfType(startPath, typeRegex) {
  let current = startPath.parentPath;
  while (current.parentPath && !typeRegex.test(current.value.type)) {
    current = current.parentPath;
  }
  return current || null;
}

export default function transformer(file, api) {
  let j = api.jscodeshift;

  let comment = j.commentLine(` eslint-disable-next-line ${ESLINT_RULE_NAME}`, true, false);

  return j(file.source)
    .find(j[AST_TYPE], path => {
      return shouldAddDisableComment(path);
    })
    .forEach(path => {
      let ancestor = closestAncestorOfType(path, /VariableDeclaration|Statement/);
      ancestor.node.comments = ancestor.node.comments || [];
      ancestor.node.comments.push(comment);
    })
    .toSource();
}