Function valueOfFile

bin/utils.js:126–161

(path, format)

// read the file found at path with the given format
async function valueOfFile(path, format) {
  switch (format) {
    case "csv":
      return csvParse(rw.readFileSync(path));
    case "ndjson":
      let data = [];
      return await new Promise((resolve, reject) => {
        readline
          .createInterface({
            input: rw.createReadStream(path),
            output: null,
          })
          .on("line", (line) => {
            try {
              data.push(JSON.parse(line));
            } catch (error) {
              reject(error);
            }
          })
          .on("close", () => {
            resolve(data);
          });
      }).catch((error) => {
        console.error(`SyntaxError when reading ${path} as ndjson: `);
        console.error(error.message);
        process.exit(1);
      });
    case "json":
      return JSON.parse(rw.readFileSync(path, "utf8"));
    case "string":
      return rw.readFileSync(path, "utf8");
    default:
      console.error(`Unknown format passed in: ${format}`);
      process.exit(1);
  }
}

// parse list of --redefine flags
function parseArgRedefines(argRedefines) {