@boost/log/mjs/Transport.mjs

Lightweight level based logging system.

import os from 'node:os';
import { Contract } from '@boost/common';
import { LOG_LEVELS } from './constants.mjs';
import { debug } from './formats.mjs';
class Transport extends Contract {
  constructor(options) {
    super(options);
    this.levels = [];
    this.levels = this.options.levels;
  }
  blueprint(schemas) {
    const array = schemas.array,
      func = schemas.func,
      string = schemas.string;
    return {
      eol: string(os.EOL),
      format: func(),
      levels: array().of(string().oneOf(LOG_LEVELS))
    };
  }

  /**
   * Format the log item into a message string, and append a trailing newline if missing.
   */
  format(item) {
    const _this$options = this.options,
      eol = _this$options.eol,
      format = _this$options.format;
    let output = typeof format === 'function' ? format(item) : debug(item);
    if (eol && !output.endsWith(eol)) {
      output += String(eol);
    }
    return output;
  }

  /**
   * Write the formatted message according to the transport.
   */
}
export { Transport };
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