apemandb/lib/modeling/resolve_model.js

Database for apeman project.

/**
 * Resolve model module path.
 * @function resolveModel
 * @param {string} name - Name of model
 * @param {Object} [options={}] - Optional settings
 * @param {string} [options.modelSearchPath=[]] - Additional search path
 */

'use strict'

const findout = require('findout')
const path = require('path')
const resolveSafely = require('../requiring/resolve_safely')

/** @lends resolveModel */
function resolveModel (name, options = {}) {
  let { modelSearchPath = {} } = options
  let parsers = resolveModel.getParsers({ modelSearchPath })
  for (let parser of parsers) {
    let resolved = resolveSafely(parser(name))
    if (resolved) {
      return Object.assign(require(resolved), {
        $$src: resolved
      })
    }
  }
  return null
}

Object.assign(resolveModel, {
  getParsers ({ modelSearchPath } = {}) {
    const { AP_MODEL_SEARCH_PATH } = process.env
    return [
      (name) => name,
      (name) => path.resolve(name),
      (name) => findout.resolve(name, { safe: true })
    ].concat(
      String(AP_MODEL_SEARCH_PATH || '').trim().split(',')
        .concat(modelSearchPath || [])
        .filter((pathname) => !!pathname)
        .map((pathname) =>
          (name) => path.resolve(pathname, name)
        )
    )
  }
})

module.exports = resolveModel