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Edit File : extract-stream.js \| Size : 2.45 KB
'use strict' const Minipass = require('minipass') const path = require('path') const tar = require('tar') module.exports = extractStream module.exports._computeMode = computeMode class Transformer extends Minipass { constructor (spec, opts) { super() this.spec = spec this.opts = opts this.str = '' } write (data) { this.str += data return true } end () { const replaced = this.str.replace( /}\s$/, `\n,"_resolved": ${ JSON.stringify(this.opts.resolved \|\| '') }\n,"_integrity": ${ JSON.stringify(this.opts.integrity \|\| '') }\n,"_from": ${ JSON.stringify(this.spec.toString()) }\n}` ) super.write(replaced) return super.end() } } function computeMode (fileMode, optMode, umask) { return (fileMode \| optMode) & ~(umask \|\| 0) } function pkgJsonTransform (spec, opts) { return entry => { if (entry.path === 'package.json') { const transformed = new Transformer(spec, opts) return transformed } } } function extractStream (spec, dest, opts) { opts = opts \|\| {} const sawIgnores = new Set() return tar.x({ cwd: dest, filter: (name, entry) => !entry.header.type.match(/^.link$/i), strip: 1, onwarn: msg => opts.log && opts.log.warn('tar', msg), uid: opts.uid, gid: opts.gid, umask: opts.umask, transform: opts.resolved && pkgJsonTransform(spec, opts), onentry (entry) { if (entry.type.toLowerCase() === 'file') { entry.mode = computeMode(entry.mode, opts.fmode, opts.umask) } else if (entry.type.toLowerCase() === 'directory') { entry.mode = computeMode(entry.mode, opts.dmode, opts.umask) } else { entry.mode = computeMode(entry.mode, 0, opts.umask) } // Note: This mirrors logic in the fs read operations that are // employed during tarball creation, in the fstream-npm module. // It is duplicated here to handle tarballs that are created // using other means, such as system tar or git archive. if (entry.type.toLowerCase() === 'file') { const base = path.basename(entry.path) if (base === '.npmignore') { sawIgnores.add(entry.path) } else if (base === '.gitignore') { const npmignore = entry.path.replace(/\.gitignore$/, '.npmignore') if (!sawIgnores.has(npmignore)) { // Rename, may be clobbered later. entry.path = npmignore } } } } }) } Back

Edit File : extract-stream.js | Size : 2.45 KB

'use strict'

const Minipass = require('minipass')
const path = require('path')
const tar = require('tar')

module.exports = extractStream
module.exports._computeMode = computeMode

class Transformer extends Minipass {
  constructor (spec, opts) {
    super()
    this.spec = spec
    this.opts = opts
    this.str = ''
  }
  write (data) {
    this.str += data
    return true
  }
  end () {
    const replaced = this.str.replace(
      /}\s*$/,
      `\n,"_resolved": ${
        JSON.stringify(this.opts.resolved || '')
      }\n,"_integrity": ${
        JSON.stringify(this.opts.integrity || '')
      }\n,"_from": ${
        JSON.stringify(this.spec.toString())
      }\n}`
    )
    super.write(replaced)
    return super.end()
  }
}

function computeMode (fileMode, optMode, umask) {
  return (fileMode | optMode) & ~(umask || 0)
}

function pkgJsonTransform (spec, opts) {
  return entry => {
    if (entry.path === 'package.json') {
      const transformed = new Transformer(spec, opts)
      return transformed
    }
  }
}

function extractStream (spec, dest, opts) {
  opts = opts || {}
  const sawIgnores = new Set()
  return tar.x({
    cwd: dest,
    filter: (name, entry) => !entry.header.type.match(/^.*link$/i),
    strip: 1,
    onwarn: msg => opts.log && opts.log.warn('tar', msg),
    uid: opts.uid,
    gid: opts.gid,
    umask: opts.umask,
    transform: opts.resolved && pkgJsonTransform(spec, opts),
    onentry (entry) {
      if (entry.type.toLowerCase() === 'file') {
        entry.mode = computeMode(entry.mode, opts.fmode, opts.umask)
      } else if (entry.type.toLowerCase() === 'directory') {
        entry.mode = computeMode(entry.mode, opts.dmode, opts.umask)
      } else {
        entry.mode = computeMode(entry.mode, 0, opts.umask)
      }

// Note: This mirrors logic in the fs read operations that are
      // employed during tarball creation, in the fstream-npm module.
      // It is duplicated here to handle tarballs that are created
      // using other means, such as system tar or git archive.
      if (entry.type.toLowerCase() === 'file') {
        const base = path.basename(entry.path)
        if (base === '.npmignore') {
          sawIgnores.add(entry.path)
        } else if (base === '.gitignore') {
          const npmignore = entry.path.replace(/\.gitignore$/, '.npmignore')
          if (!sawIgnores.has(npmignore)) {
            // Rename, may be clobbered later.
            entry.path = npmignore
          }
        }
      }
    }
  })
}

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