codekingpro/portable-devtools

1const Pipeline = require('minipass-pipeline')
2const libSearch = require('libnpmsearch')
3const { log, output } = require('proc-log')
4const formatSearchStream = require('../utils/format-search-stream.js')
5const BaseCommand = require('../base-cmd.js')
6
7class Search extends BaseCommand {
8  static description = 'Search for packages'
9  static name = 'search'
10  static params = [
11    'json',
12    'color',
13    'parseable',
14    'description',
15    'searchlimit',
16    'searchopts',
17    'searchexclude',
18    'registry',
19    'prefer-online',
20    'prefer-offline',
21    'offline',
22  ]
23
24  static usage = ['<search term> [<search term> ...]']
25
26  async exec (args) {
27    const opts = {
28      ...this.npm.flatOptions,
29      ...this.npm.flatOptions.search,
30      include: args.map(s => s.toLowerCase()).filter(Boolean),
31      exclude: this.npm.flatOptions.search.exclude.split(/\s+/),
32    }
33
34    if (opts.include.length === 0) {
35      throw new Error('search must be called with arguments')
36    }
37
38    // Used later to figure out whether we had any packages go out
39    let anyOutput = false
40
41    // Grab a configured output stream that will spit out packages in the desired format.
42    const outputStream = formatSearchStream({
43      args, // --searchinclude options are not highlighted
44      ...opts,
45      npm: this.npm,
46    })
47
48    log.silly('search', 'searching packages')
49    const p = new Pipeline(
50      libSearch.stream(opts.include, opts),
51      outputStream
52    )
53
54    p.on('data', chunk => {
55      if (!anyOutput) {
56        anyOutput = true
57      }
58      output.standard(chunk.toString('utf8'))
59    })
60
61    await p.promise()
62    if (!anyOutput && !this.npm.config.get('json') && !this.npm.config.get('parseable')) {
63      output.standard('No matches found for ' + (args.map(JSON.stringify).join(' ')))
64    }
65
66    log.silly('search', 'search completed')
67  }
68}
69
70module.exports = Search
71