Files
nexe/src/steps/artifacts.ts
T
2018-09-24 11:28:49 -05:00

70 lines
2.2 KiB
TypeScript

import { join, dirname } from 'path'
import { readdir, unlink } from 'fs'
import { readFileAsync, writeFileAsync, isDirectoryAsync } from '../util'
import * as mkdirp from 'mkdirp'
import { NexeCompiler } from '../compiler'
import pify = require('pify')
const mkdirpAsync = pify(mkdirp)
const unlinkAsync = pify(unlink)
const readdirAsync = pify(readdir)
function readDirAsync(dir: string): Promise<string[]> {
return readdirAsync(dir).then(paths => {
return Promise.all(
paths.map((file: string) => {
const path = join(dir, file)
return isDirectoryAsync(path).then(x => (x ? readDirAsync(path) : (path as any)))
})
).then(result => {
return [].concat(...(result as any))
})
})
}
function maybeReadFileContentsAsync(file: string) {
return readFileAsync(file, 'utf-8').catch(e => {
if (e.code === 'ENOENT') {
return ''
}
throw e
})
}
/**
* The artifacts step is where source patches are committed, or written as "artifacts"
* Steps:
* - A temporary directory is created in the downloaded source
* - On start, any files in that directory are restored into the source tree
* - After the patch functions have run, the temporary directory is emptied
* - Original versions of sources to be patched are written to the temporary directory
* - Finally, The patched files are written into source.
*/
export default async function artifacts(compiler: NexeCompiler, next: () => Promise<void>) {
const { src } = compiler
const temp = join(src, 'nexe')
await mkdirpAsync(temp)
const tmpFiles = await readDirAsync(temp)
await Promise.all(
tmpFiles.map(async path => {
return compiler.writeFileAsync(path.replace(temp, ''), await readFileAsync(path, 'utf-8'))
})
)
await next()
await Promise.all(tmpFiles.map(x => unlinkAsync(x)))
return Promise.all(
compiler.files.map(async file => {
const sourceFile = join(src, file.filename)
const tempFile = join(temp, file.filename)
const fileContents = await maybeReadFileContentsAsync(sourceFile)
await mkdirpAsync(dirname(tempFile))
await writeFileAsync(tempFile, fileContents)
await compiler.writeFileAsync(file.filename, file.contents)
})
)
}