apeman-tmpl/lib/templating/render_template.js

Template manager for apeman.

/**
 * Render templates.
 * @memberof module:apeman-tmpl/lib/templating
 * @function renderTemplate
 * @returns {Promise}
 */

'use strict'

const coz = require('coz')
const co = require('co')
const path = require('path')
const mkdirp = require('mkdirp')
const RenderLogger = require('../logging/render_logger')
const getTemplates = require('./get_templates')
const apemancwd = require('apemancwd')

/** @lends renderTemplate */
function renderTemplate (configuration, names, options) {
  let tmpls = getTemplates(configuration, names)
  let childTmpls = getTemplates.childTmpls(configuration, names)

  let logger = new RenderLogger({})
  let verbose = options.verbose
  let force = options.force
  if (verbose) {
    logger.logTmpls(tmpls)
  }

  function _render (tmpls) {
    if (force) {
      for (let tmpl of [].concat(tmpls)) {
        tmpl.force = true
      }
    }
    return coz.render(tmpls, {
      prefix: 'apeman-tmpl',
      verbose: verbose
    })
  }

  return co(function * () {
    yield _render(tmpls)
    let cwd = apemancwd.create({ prefix: 'apeman-tmpl' })
    for (let childName of Object.keys(childTmpls || {})) {
      let $child = configuration.get('$children')[ childName ]
      let $cwd = path.resolve($child.$cwd || process.cwd())
      mkdirp.sync($cwd)
      cwd.chdir($cwd)
      logger.trace('Working directory:', $cwd)
      let tmpls = childTmpls[ childName ]
      yield _render(tmpls)
      cwd.restore()
    }
    cwd.restoreAll()
  })
}

module.exports = renderTemplate