masnagam/npm-diet

#!/usr/bin/env node

// Copyright 2018 Masayuki Nagamachi <masayuki.nagamachi@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

'use strict';

const program = require('commander');
const lib = require('../lib');

const HELP = `
  Arguments:

    analysis  JSON file which contains an analysis (optional)

  Description:

    This command loads an analysis JSON data from a file or STDIN, and shows
    a brief summary of the analysis result.
`;

program
  .description(
    'Show a brief summary of an analysis')
  .arguments(
    '[analysis]')
  .on('--help', () => console.log(HELP))
  .action(async (filepath, options) => {
    const json = await lib.cli.utils.readStringFromFileOrStdin(filepath);
    let analysis = JSON.parse(json);
    if (analysis.type === 'measure') {
      const { numPkgs, size } = lib.analyze.duplicate(analysis);
      analysis.numDups = numPkgs;
      analysis.sizeDups = size;
    }
    lib.show.summary(analysis, options);
  })
  .parse(process.argv);