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autorestic/src/utils.ts

78 lines
2.1 KiB

import axios from 'axios'
import { spawnSync, SpawnSyncOptions } from 'child_process'
import { randomBytes } from 'crypto'
import { createWriteStream } from 'fs'
export const exec = (
command: string,
args: string[],
{ env, ...rest }: SpawnSyncOptions = {}
) => {
const cmd = spawnSync(command, args, {
...rest,
env: {
...process.env,
...env,
},
})
const out = cmd.stdout && cmd.stdout.toString().trim()
const err = cmd.stderr && cmd.stderr.toString().trim()
return { out, err }
}
export const checkIfResticIsAvailable = () =>
checkIfCommandIsAvailable(
'restic',
'Restic is not installed'.red +
' https://restic.readthedocs.io/en/latest/020_installation.html#stable-releases'
)
export const checkIfCommandIsAvailable = (cmd: string, errorMsg?: string) => {
if (require('child_process').spawnSync(cmd).error)
throw new Error(errorMsg ? errorMsg : `"${errorMsg}" is not installed`.red)
}
export const makeObjectKeysLowercase = (object: Object): any =>
Object.fromEntries(
Object.entries(object).map(([key, value]) => [key.toLowerCase(), value])
)
export function rand(length = 32): string {
return randomBytes(length / 2).toString('hex')
}
export const singleToArray = <T>(singleOrArray: T | T[]): T[] =>
Array.isArray(singleOrArray) ? singleOrArray : [singleOrArray]
export const filterObject = <T>(
obj: { [key: string]: T },
filter: (item: [string, T]) => boolean
): { [key: string]: T } =>
Object.fromEntries(Object.entries(obj).filter(filter))
export const filterObjectByKey = <T>(
obj: { [key: string]: T },
keys: string[]
) => filterObject(obj, ([key]) => keys.includes(key))
export const downloadFile = async (url: string, to: string) =>
new Promise<void>(async res => {
const { data: file } = await axios({
method: 'get',
url: url,
responseType: 'stream',
})
const stream = createWriteStream(to)
const writer = file.pipe(stream)
writer.on('close', () => {
stream.close()
res()
})
})
export const ConfigError = new Error('Config file not found')