96 lines
2.6 KiB
JavaScript
Executable file
96 lines
2.6 KiB
JavaScript
Executable file
const Fetcher = require('./fetcher.js')
|
|
const fsm = require('fs-minipass')
|
|
const cacache = require('cacache')
|
|
const _tarballFromResolved = Symbol.for('pacote.Fetcher._tarballFromResolved')
|
|
const _exeBins = Symbol('_exeBins')
|
|
const { resolve } = require('path')
|
|
const fs = require('fs')
|
|
const _readPackageJson = Symbol.for('package.Fetcher._readPackageJson')
|
|
|
|
class FileFetcher extends Fetcher {
|
|
constructor (spec, opts) {
|
|
super(spec, opts)
|
|
// just the fully resolved filename
|
|
this.resolved = this.spec.fetchSpec
|
|
}
|
|
|
|
get types () {
|
|
return ['file']
|
|
}
|
|
|
|
manifest () {
|
|
if (this.package) {
|
|
return Promise.resolve(this.package)
|
|
}
|
|
|
|
// have to unpack the tarball for this.
|
|
return cacache.tmp.withTmp(this.cache, this.opts, dir =>
|
|
this.extract(dir)
|
|
.then(() => this[_readPackageJson](dir + '/package.json'))
|
|
.then(mani => this.package = {
|
|
...mani,
|
|
_integrity: this.integrity && String(this.integrity),
|
|
_resolved: this.resolved,
|
|
_from: this.from,
|
|
}))
|
|
}
|
|
|
|
[_exeBins] (pkg, dest) {
|
|
if (!pkg.bin) {
|
|
return Promise.resolve()
|
|
}
|
|
|
|
return Promise.all(Object.keys(pkg.bin).map(k => new Promise(res => {
|
|
const script = resolve(dest, pkg.bin[k])
|
|
// Best effort. Ignore errors here, the only result is that
|
|
// a bin script is not executable. But if it's missing or
|
|
// something, we just leave it for a later stage to trip over
|
|
// when we can provide a more useful contextual error.
|
|
fs.stat(script, (er, st) => {
|
|
if (er) {
|
|
return res()
|
|
}
|
|
const mode = st.mode | 0o111
|
|
if (mode === st.mode) {
|
|
return res()
|
|
}
|
|
fs.chmod(script, mode, res)
|
|
})
|
|
})))
|
|
}
|
|
|
|
extract (dest) {
|
|
// if we've already loaded the manifest, then the super got it.
|
|
// but if not, read the unpacked manifest and chmod properly.
|
|
return super.extract(dest)
|
|
.then(result => this.package ? result
|
|
: this[_readPackageJson](dest + '/package.json').then(pkg =>
|
|
this[_exeBins](pkg, dest)).then(() => result))
|
|
}
|
|
|
|
[_tarballFromResolved] () {
|
|
// create a read stream and return it
|
|
return new fsm.ReadStream(this.resolved)
|
|
}
|
|
|
|
packument () {
|
|
// simulate based on manifest
|
|
return this.manifest().then(mani => ({
|
|
name: mani.name,
|
|
'dist-tags': {
|
|
[this.defaultTag]: mani.version,
|
|
},
|
|
versions: {
|
|
[mani.version]: {
|
|
...mani,
|
|
dist: {
|
|
tarball: `file:${this.resolved}`,
|
|
integrity: this.integrity && String(this.integrity),
|
|
},
|
|
},
|
|
},
|
|
}))
|
|
}
|
|
}
|
|
|
|
module.exports = FileFetcher
|