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fs.js
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fs.js
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// builtin
import { resolve, basename } from 'node:path'
import { rename as _rename } from 'node:fs'
// external
import yaml from 'js-yaml'
import safeps from 'safeps'
import Errlop from 'errlop'
import { isAccessible } from '@bevry/fs-accessible'
import unlink from '@bevry/fs-unlink'
import read from '@bevry/fs-read'
import write from '@bevry/fs-write'
// local
import { status } from './log.js'
import { pwd } from './data.js'
export async function contains(file, data) {
return (await read(file)).toString().includes(data)
}
export async function echoExists(file) {
const e = await isAccessible(file)
return e ? file : ''
}
export async function unlinkIfContains(file, what) {
if (Array.isArray(file)) {
return Promise.all(file.map((i) => unlinkIfContains(i, what)))
}
const path = resolve(pwd, file)
if (await isAccessible(path)) {
if (await contains(path, what)) {
console.log(path, 'will be removed because it contains:', what)
return unlink(path)
} else {
console.log(
path,
'will not be removed because it does not contain:',
what,
)
}
}
}
export function rename(source, target) {
source = resolve(pwd, source)
target = resolve(pwd, target)
return new Promise(function (resolve, reject) {
_rename(source, target, function (error) {
if (error) return reject(error)
return resolve()
})
})
}
export async function readJSON(file) {
const exist = await isAccessible(file)
if (!exist) return {}
const data = await read(file)
return JSON.parse(data)
}
export async function readYAML(file) {
const exist = await isAccessible(file)
if (!exist) return {}
const data = await read(file)
return yaml.load(data)
}
export function writeYAML(file, data) {
return write(file, yaml.dump(data, { noRefs: true }))
}
export function spawn(command, opts = {}) {
opts.cwd = opts.cwd || pwd
opts.stdio = opts.stdio == null ? 'inherit' : opts.stdio
return new Promise(function (resolve, reject) {
safeps.spawn(command, opts, function (err, stdout = '', stderr = '') {
if (err) {
const message = `spawn failed: ${command.join(' ')}`
if (stderr) {
const errorMessage = stderr.toLowerCase()
if (
errorMessage.includes('enoent') ||
errorMessage.includes('etarget') ||
errorMessage.includes('timeout') ||
errorMessage.includes('econn')
) {
console.log(
'trying again due to poor internet connection or caching',
)
return spawn(command, opts).then(resolve).catch(reject)
}
}
return reject(new Errlop(message, err))
}
return resolve(stdout)
})
})
}
export function exec(command, opts = {}) {
opts.cwd = opts.cwd || pwd
return new Promise(function (resolve, reject) {
safeps.exec(command, opts, function (err, stdout) {
if (err) return reject(new Errlop(`exec failed: ${command}`, err))
return resolve(stdout)
})
})
}
export async function parse(file) {
const path = resolve(pwd, file)
const filename = basename(path)
status(`reading the ${filename} file...`)
try {
if (await isAccessible(path)) {
const data = JSON.parse(await read(path))
status(`...read the ${filename} file...`)
return data
} else {
status(`...missing the ${path} file...`)
}
} catch (err) {
status(`...skipped the ${filename} file`)
return null
}
}