StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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99 lines
2.9 KiB
99 lines
2.9 KiB
4 years ago
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const Fetcher = require('./fetcher.js')
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const FileFetcher = require('./file.js')
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const cacache = require('cacache')
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const Minipass = require('minipass')
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const { promisify } = require('util')
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const readPackageJson = require('read-package-json-fast')
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const npm = require('./util/npm.js')
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const isPackageBin = require('./util/is-package-bin.js')
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const packlist = require('npm-packlist')
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const tar = require('tar')
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const _prepareDir = Symbol('_prepareDir')
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const _tarcOpts = Symbol('_tarcOpts')
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const _tarballFromResolved = Symbol.for('pacote.Fetcher._tarballFromResolved')
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class DirFetcher extends Fetcher {
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constructor (spec, opts) {
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super(spec, opts)
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// just the fully resolved filename
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this.resolved = this.spec.fetchSpec
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}
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get types () {
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return ['directory']
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}
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[_prepareDir] () {
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return this.manifest().then(mani => {
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if (!mani.scripts || !mani.scripts.prepare)
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return
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// we *only* run prepare.
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// pre/post-pack is run by the npm CLI for publish and pack,
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// but this function is *also* run when installing git deps
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return npm(
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this.npmBin,
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[].concat(this.npmRunCmd).concat('prepare').concat(this.npmCliConfig),
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this.resolved,
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'directory preparation failed'
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)
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})
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}
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[_tarballFromResolved] () {
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const stream = new Minipass()
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stream.resolved = this.resolved
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stream.integrity = this.integrity
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// run the prepare script, get the list of files, and tar it up
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// pipe to the stream, and proxy errors the chain.
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this[_prepareDir]()
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.then(() => packlist({ path: this.resolved }))
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.then(files => tar.c(this[_tarcOpts](), files)
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.on('error', er => stream.emit('error', er)).pipe(stream))
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.catch(er => stream.emit('error', er))
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return stream
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}
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[_tarcOpts] () {
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return {
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cwd: this.resolved,
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prefix: 'package/',
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portable: true,
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gzip: true,
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// ensure that package bins are always executable
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// Note that npm-packlist is already filtering out
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// anything that is not a regular file, ignored by
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// .npmignore or package.json "files", etc.
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filter: (path, stat) => {
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if (isPackageBin(this.package, path))
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stat.mode |= 0o111
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return true
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},
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// Provide a specific date in the 1980s for the benefit of zip,
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// which is confounded by files dated at the Unix epoch 0.
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mtime: new Date('1985-10-26T08:15:00.000Z'),
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}
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}
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manifest () {
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if (this.package)
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return Promise.resolve(this.package)
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return readPackageJson(this.resolved + '/package.json')
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.then(mani => this.package = {
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...mani,
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_integrity: String(this.integrity),
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_resolved: this.resolved,
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_from: this.from,
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})
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}
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packument () {
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return FileFetcher.prototype.packument.apply(this)
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}
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}
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module.exports = DirFetcher
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