ask-cli/dist/lib/model/yaml-parser.js

Alexa Skills Kit (ASK) Command Line Interfaces

"use strict";
/**
 * YAML load and dump from/to JSON object.
 * Support the loading of AWS Cloudformation Intrinsic function:
 * https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference.html
 */
const fs = require("fs");
const yaml = require("js-yaml");
// Custom type for "!Ref"
const refYamlType = new yaml.Type("!Ref", {
    kind: "scalar",
    resolve: (data) => !!data && typeof data === "string" && data.trim(),
    construct: (data) => `!Ref ${data}`,
});
// Custom type for "!GetAtt"
const getattYamlType = new yaml.Type("!GetAtt", {
    kind: "scalar",
    resolve: (data) => !!data && typeof data === "string" && data.trim(),
    construct: (data) => `!GetAtt ${data}`,
});
// Create AWS schema for YAML parser
// https://github.com/nodeca/js-yaml/blob/master/migrate_v3_to_v4.md
const awsSchema = yaml.JSON_SCHEMA.extend([refYamlType, getattYamlType]);
/**
 * Load the yaml file with aws's schema
 * @param {String} filePath File path for the yaml file
 */
function load(filePath) {
    const fileData = fs.readFileSync(filePath, "utf-8");
    return yaml.load(fileData, { schema: awsSchema });
}
/**
 * Dump the yaml file by merge the new content to the original file
 * @param {String} filePath File path for the yaml file
 * @param {Object} content Content to be written into filePath
 */
function dump(filePath, content) {
    fs.writeFileSync(filePath, yaml.dump(content).replace(/: *'(.+)'/g, ": $1")); // remove the single quotes for the value
}
module.exports = {
    load,
    dump,
};