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Mini Shell
Mini Shell
'use strict'
const BB = require('bluebird')
const binLink = require('bin-links')
const buildLogicalTree = require('npm-logical-tree')
const extract = require('./lib/extract.js')
const figgyPudding = require('figgy-pudding')
const fs = require('graceful-fs')
const getPrefix = require('find-npm-prefix')
const lifecycle = require('npm-lifecycle')
const lockVerify = require('lock-verify')
const mkdirp = BB.promisify(require('mkdirp'))
const npa = require('npm-package-arg')
const path = require('path')
const readPkgJson = BB.promisify(require('read-package-json'))
const rimraf = BB.promisify(require('rimraf'))
const readFileAsync = BB.promisify(fs.readFile)
const statAsync = BB.promisify(fs.stat)
const symlinkAsync = BB.promisify(fs.symlink)
const writeFileAsync = BB.promisify(fs.writeFile)
const LifecycleOpts = figgyPudding({
config: {},
'script-shell': {},
scriptShell: 'script-shell',
'ignore-scripts': {},
ignoreScripts: 'ignore-scripts',
'ignore-prepublish': {},
ignorePrepublish: 'ignore-prepublish',
'scripts-prepend-node-path': {},
scriptsPrependNodePath: 'scripts-prepend-node-path',
'unsafe-perm': {},
unsafePerm: 'unsafe-perm',
prefix: {},
dir: 'prefix',
failOk: { default: false }
}, { other () { return true } })
class Installer {
constructor (opts) {
this.opts = opts
// Stats
this.startTime = Date.now()
this.runTime = 0
this.timings = { scripts: 0 }
this.pkgCount = 0
// Misc
this.log = this.opts.log || require('./lib/silentlog.js')
this.pkg = null
this.tree = null
this.failedDeps = new Set()
}
timedStage (name) {
const start = Date.now()
return BB.resolve(this[name].apply(this, [].slice.call(arguments, 1)))
.tap(() => {
this.timings[name] = Date.now() - start
this.log.info(name, `Done in ${this.timings[name] / 1000}s`)
})
}
run () {
return this.timedStage('prepare')
.then(() => this.timedStage('extractTree', this.tree))
.then(() => this.timedStage('updateJson', this.tree))
.then(pkgJsons => this.timedStage('buildTree', this.tree, pkgJsons))
.then(() => this.timedStage('garbageCollect', this.tree))
.then(() => this.timedStage('runScript', 'prepublish', this.pkg, this.prefix))
.then(() => this.timedStage('runScript', 'prepare', this.pkg, this.prefix))
.then(() => this.timedStage('teardown'))
.then(() => {
this.runTime = Date.now() - this.startTime
this.log.info(
'run-scripts',
`total script time: ${this.timings.scripts / 1000}s`
)
this.log.info(
'run-time',
`total run time: ${this.runTime / 1000}s`
)
})
.catch(err => {
this.timedStage('teardown')
if (err.message.match(/aggregate error/)) {
throw err[0]
} else {
throw err
}
})
.then(() => this)
}
prepare () {
this.log.info('prepare', 'initializing installer')
this.log.level = this.opts.loglevel
this.log.verbose('prepare', 'starting workers')
extract.startWorkers()
return (
this.opts.prefix && this.opts.global
? BB.resolve(this.opts.prefix)
// There's some Specialâ„¢ logic around the `--prefix` config when it
// comes from a config file or env vs when it comes from the CLI
: process.argv.some(arg => arg.match(/^\s*--prefix\s*/i))
? BB.resolve(this.opts.prefix)
: getPrefix(process.cwd())
)
.then(prefix => {
this.prefix = prefix
this.log.verbose('prepare', 'installation prefix: ' + prefix)
return BB.join(
readJson(prefix, 'package.json'),
readJson(prefix, 'package-lock.json', true),
readJson(prefix, 'npm-shrinkwrap.json', true),
(pkg, lock, shrink) => {
if (shrink) {
this.log.verbose('prepare', 'using npm-shrinkwrap.json')
} else if (lock) {
this.log.verbose('prepare', 'using package-lock.json')
}
pkg._shrinkwrap = shrink || lock
this.pkg = pkg
}
)
})
.then(() => statAsync(
path.join(this.prefix, 'node_modules')
).catch(err => { if (err.code !== 'ENOENT') { throw err } }))
.then(stat => {
stat && this.log.warn(
'prepare', 'removing existing node_modules/ before installation'
)
return BB.join(
this.checkLock(),
stat && rimraf(path.join(this.prefix, 'node_modules/*'))
)
}).then(() => {
// This needs to happen -after- we've done checkLock()
this.tree = buildLogicalTree(this.pkg, this.pkg._shrinkwrap)
this.log.silly('tree', this.tree)
this.expectedTotal = 0
this.tree.forEach((dep, next) => {
this.expectedTotal++
next()
})
})
}
teardown () {
this.log.verbose('teardown', 'shutting down workers.')
return extract.stopWorkers()
}
checkLock () {
this.log.verbose('checkLock', 'verifying package-lock data')
const pkg = this.pkg
const prefix = this.prefix
if (!pkg._shrinkwrap || !pkg._shrinkwrap.lockfileVersion) {
return BB.reject(
new Error(`cipm can only install packages with an existing package-lock.json or npm-shrinkwrap.json with lockfileVersion >= 1. Run an install with npm@5 or later to generate it, then try again.`)
)
}
return lockVerify(prefix).then(result => {
if (result.status) {
result.warnings.forEach(w => this.log.warn('lockfile', w))
} else {
throw new Error(
'cipm can only install packages when your package.json and package-lock.json or ' +
'npm-shrinkwrap.json are in sync. Please update your lock file with `npm install` ' +
'before continuing.\n\n' +
result.warnings.map(w => 'Warning: ' + w).join('\n') + '\n' +
result.errors.join('\n') + '\n'
)
}
}).catch(err => {
throw err
})
}
extractTree (tree) {
this.log.verbose('extractTree', 'extracting dependencies to node_modules/')
const cg = this.log.newItem('extractTree', this.expectedTotal)
return tree.forEachAsync((dep, next) => {
if (!this.checkDepEnv(dep)) { return }
const depPath = dep.path(this.prefix)
const spec = npa.resolve(dep.name, dep.version, this.prefix)
if (dep.isRoot) {
return next()
} else if (spec.type === 'directory') {
const relative = path.relative(path.dirname(depPath), spec.fetchSpec)
this.log.silly('extractTree', `${dep.name}@${spec.fetchSpec} -> ${depPath} (symlink)`)
return mkdirp(path.dirname(depPath))
.then(() => symlinkAsync(relative, depPath, 'junction'))
.catch(
() => rimraf(depPath)
.then(() => symlinkAsync(relative, depPath, 'junction'))
).then(() => next())
.then(() => {
this.pkgCount++
cg.completeWork(1)
})
} else {
this.log.silly('extractTree', `${dep.name}@${dep.version} -> ${depPath}`)
return (
dep.bundled
? statAsync(path.join(depPath, 'package.json')).catch(err => {
if (err.code !== 'ENOENT') { throw err }
})
: BB.resolve(false)
)
.then(wasBundled => {
// Don't extract if a bundled dep is actually present
if (wasBundled) {
cg.completeWork(1)
return next()
} else {
return BB.resolve(extract.child(
dep.name, dep, depPath, this.opts
))
.then(() => cg.completeWork(1))
.then(() => { this.pkgCount++ })
.then(next)
}
})
}
}, {concurrency: 50, Promise: BB})
.then(() => cg.finish())
}
checkDepEnv (dep) {
const includeDev = (
// Covers --dev and --development (from npm config itself)
this.opts.dev ||
(
!/^prod(uction)?$/.test(this.opts.only) &&
!this.opts.production
) ||
/^dev(elopment)?$/.test(this.opts.only) ||
/^dev(elopment)?$/.test(this.opts.also)
)
const includeProd = !/^dev(elopment)?$/.test(this.opts.only)
const includeOptional = includeProd && this.opts.optional
return (dep.dev && includeDev) ||
(dep.optional && includeOptional) ||
(!dep.dev && !dep.optional && includeProd)
}
updateJson (tree) {
this.log.verbose('updateJson', 'updating json deps to include _from')
const pkgJsons = new Map()
return tree.forEachAsync((dep, next) => {
if (!this.checkDepEnv(dep)) { return }
const spec = npa.resolve(dep.name, dep.version)
const depPath = dep.path(this.prefix)
return next()
.then(() => readJson(depPath, 'package.json'))
.then(pkg => (spec.registry || spec.type === 'directory')
? pkg
: this.updateFromField(dep, pkg).then(() => pkg)
)
.then(pkg => (pkg.scripts && pkg.scripts.install)
? pkg
: this.updateInstallScript(dep, pkg).then(() => pkg)
)
.tap(pkg => { pkgJsons.set(dep, pkg) })
}, {concurrency: 100, Promise: BB})
.then(() => pkgJsons)
}
buildTree (tree, pkgJsons) {
this.log.verbose('buildTree', 'finalizing tree and running scripts')
return tree.forEachAsync((dep, next) => {
if (!this.checkDepEnv(dep)) { return }
const spec = npa.resolve(dep.name, dep.version)
const depPath = dep.path(this.prefix)
const pkg = pkgJsons.get(dep)
this.log.silly('buildTree', `linking ${spec}`)
return this.runScript('preinstall', pkg, depPath)
.then(next) // build children between preinstall and binLink
// Don't link root bins
.then(() => {
if (
dep.isRoot ||
!(pkg.bin || pkg.man || (pkg.directories && pkg.directories.bin))
) {
// We skip the relatively expensive readPkgJson if there's no way
// we'll actually be linking any bins or mans
return
}
return readPkgJson(path.join(depPath, 'package.json'))
.then(pkg => binLink(pkg, depPath, false, {
force: this.opts.force,
ignoreScripts: this.opts['ignore-scripts'],
log: Object.assign({}, this.log, { info: () => {} }),
name: pkg.name,
pkgId: pkg.name + '@' + pkg.version,
prefix: this.prefix,
prefixes: [this.prefix],
umask: this.opts.umask
}), e => {
this.log.verbose('buildTree', `error linking ${spec}: ${e.message} ${e.stack}`)
})
})
.then(() => this.runScript('install', pkg, depPath))
.then(() => this.runScript('postinstall', pkg, depPath))
.then(() => this)
.catch(e => {
if (dep.optional) {
this.failedDeps.add(dep)
} else {
throw e
}
})
}, {concurrency: 1, Promise: BB})
}
updateFromField (dep, pkg) {
const depPath = dep.path(this.prefix)
const depPkgPath = path.join(depPath, 'package.json')
const parent = dep.requiredBy.values().next().value
return readJson(parent.path(this.prefix), 'package.json')
.then(ppkg =>
(ppkg.dependencies && ppkg.dependencies[dep.name]) ||
(ppkg.devDependencies && ppkg.devDependencies[dep.name]) ||
(ppkg.optionalDependencies && ppkg.optionalDependencies[dep.name])
)
.then(from => npa.resolve(dep.name, from))
.then(from => { pkg._from = from.toString() })
.then(() => writeFileAsync(depPkgPath, JSON.stringify(pkg, null, 2)))
.then(() => pkg)
}
updateInstallScript (dep, pkg) {
const depPath = dep.path(this.prefix)
return statAsync(path.join(depPath, 'binding.gyp'))
.catch(err => { if (err.code !== 'ENOENT') { throw err } })
.then(stat => {
if (stat) {
if (!pkg.scripts) {
pkg.scripts = {}
}
pkg.scripts.install = 'node-gyp rebuild'
}
})
.then(() => pkg)
}
// A cute little mark-and-sweep collector!
garbageCollect (tree) {
if (!this.failedDeps.size) { return }
return sweep(
tree,
this.prefix,
mark(tree, this.failedDeps)
)
.then(purged => {
this.purgedDeps = purged
this.pkgCount -= purged.size
})
}
runScript (stage, pkg, pkgPath) {
const start = Date.now()
if (!this.opts['ignore-scripts']) {
// TODO(mikesherov): remove pkg._id when npm-lifecycle no longer relies on it
pkg._id = pkg.name + '@' + pkg.version
return BB.resolve(lifecycle(
pkg, stage, pkgPath, LifecycleOpts(this.opts).concat({
// TODO: can be removed once npm-lifecycle is updated to modern
// config practices.
config: Object.assign({}, this.opts, {
log: null,
dirPacker: null
}),
dir: this.prefix
}))
).tap(() => { this.timings.scripts += Date.now() - start })
}
return BB.resolve()
}
}
module.exports = Installer
function mark (tree, failed) {
const liveDeps = new Set()
tree.forEach((dep, next) => {
if (!failed.has(dep)) {
liveDeps.add(dep)
next()
}
})
return liveDeps
}
function sweep (tree, prefix, liveDeps) {
const purged = new Set()
return tree.forEachAsync((dep, next) => {
return next().then(() => {
if (
!dep.isRoot && // never purge root! 🙈
!liveDeps.has(dep) &&
!purged.has(dep)
) {
purged.add(dep)
return rimraf(dep.path(prefix))
}
})
}, {concurrency: 50, Promise: BB}).then(() => purged)
}
function stripBOM (str) {
return str.replace(/^\uFEFF/, '')
}
module.exports._readJson = readJson
function readJson (jsonPath, name, ignoreMissing) {
return readFileAsync(path.join(jsonPath, name), 'utf8')
.then(str => JSON.parse(stripBOM(str)))
.catch({code: 'ENOENT'}, err => {
if (!ignoreMissing) {
throw err
}
})
}
Zerion Mini Shell 1.0