github.com/muhammedhassanm/blockchain@v0.0.0-20200120143007-697261defd4d/sawtooth-core-master/sdk/javascript/compile_protobuf.js (about)

     1  /**
     2   * Copyright 2016 Intel Corporation
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License")
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   * ------------------------------------------------------------------------------
    16   */
    17  
    18  'use strict'
    19  
    20  const protobuf = require('protobufjs')
    21  const jsonTarget = require('./node_modules/protobufjs/cli/targets/json')
    22  
    23  const path = require('path')
    24  const fs = require('fs')
    25  
    26  let root = new protobuf.Root()
    27  
    28  let files = fs.readdirSync('../../protos')
    29                .map(f => path.resolve('../../protos', f))
    30                .filter(f => f.endsWith('.proto'))
    31  
    32  try {
    33    root = root.loadSync(files)
    34  } catch (e) {
    35    console.log('Unable to load protobuf files!')
    36    throw e
    37  }
    38  
    39  jsonTarget(root, {}, (err, output) => {
    40    if (err) {
    41      throw err
    42    }
    43  
    44    if (output !== '') {
    45      process.stdout.write(output, 'utf8')
    46    }
    47  })