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const Minipass = require('minipass')
const Pipeline = require('minipass-pipeline')
const libSearch = require('libnpmsearch')
const log = require('../utils/log-shim.js')
const formatSearchStream = require('../utils/format-search-stream.js')
function filter (data, include, exclude) {
const words = [data.name]
.concat(data.maintainers.map(m => `=${m.username}`))
.concat(data.keywords || [])
.map(f => f && f.trim && f.trim())
.filter(f => f)
.join(' ')
.toLowerCase()
if (exclude.find(e => match(words, e))) {
return false
}
return true
}
function match (words, pattern) {
if (pattern.startsWith('/')) {
if (pattern.endsWith('/')) {
pattern = pattern.slice(0, -1)
}
pattern = new RegExp(pattern.slice(1))
return words.match(pattern)
}
return words.indexOf(pattern) !== -1
}
const BaseCommand = require('../base-command.js')
class Search extends BaseCommand {
static description = 'Search for packages'
static name = 'search'
static params = [
'long',
'json',
'color',
'parseable',
'description',
'searchopts',
'searchexclude',
'registry',
'prefer-online',
'prefer-offline',
'offline',
]
static usage = ['[search terms ...]']
async exec (args) {
const opts = {
...this.npm.flatOptions,
...this.npm.flatOptions.search,
include: args.map(s => s.toLowerCase()).filter(s => s),
exclude: this.npm.flatOptions.search.exclude.split(/\s+/),
}
if (opts.include.length === 0) {
throw new Error('search must be called with arguments')
}
// Used later to figure out whether we had any packages go out
let anyOutput = false
class FilterStream extends Minipass {
write (pkg) {
if (filter(pkg, opts.include, opts.exclude)) {
super.write(pkg)
}
}
}
const filterStream = new FilterStream()
// Grab a configured output stream that will spit out packages in the
// desired format.
const outputStream = formatSearchStream({
args, // --searchinclude options are not highlighted
...opts,
})
log.silly('search', 'searching packages')
const p = new Pipeline(
libSearch.stream(opts.include, opts),
filterStream,
outputStream
)
p.on('data', chunk => {
if (!anyOutput) {
anyOutput = true
}
this.npm.output(chunk.toString('utf8'))
})
await p.promise()
if (!anyOutput && !this.npm.config.get('json') && !this.npm.config.get('parseable')) {
this.npm.output('No matches found for ' + (args.map(JSON.stringify).join(' ')))
}
log.silly('search', 'search completed')
log.clearProgress()
}
}
module.exports = Search