config optional if not required for current operation

src/autorestic.ts

@@ -32,7 +32,7 @@ if (flags.version) {
   process.exit(0)
 }
 
-export const config: Config = init()
+export const config = init()
 
 function main() {
   if (commands.length < 1) return help()

src/backend.ts

@@ -2,11 +2,10 @@ import { Writer } from 'clitastic'
 
 import { config, VERBOSE } from './autorestic'
 import { Backend, Backends } from './types'
-import { exec } from './utils'
+import { exec, ConfigError } from './utils'
 
 const ALREADY_EXISTS = /(?=.*exists)(?=.*already)(?=.*config).*/
 
-
 export const getPathFromBackend = (backend: Backend): string => {
   switch (backend.type) {
     case 'local':
@@ -24,7 +23,6 @@ export const getPathFromBackend = (backend: Backend): string => {
   }
 }
 
-
 export const getEnvFromBackend = (backend: Backend) => {
   const { type, path, key, ...rest } = backend
   return {
@@ -34,7 +32,6 @@ export const getEnvFromBackend = (backend: Backend) => {
   }
 }
 
-
 export const checkAndConfigureBackend = (name: string, backend: Backend) => {
   const writer = new Writer(name.blue + ' : ' + 'Configuring... ⏳')
   const env = getEnvFromBackend(backend)
@@ -49,8 +46,12 @@ export const checkAndConfigureBackend = (name: string, backend: Backend) => {
   writer.done(name.blue + ' : ' + 'Done ✓'.green)
 }
 
+export const checkAndConfigureBackends = (backends?: Backends) => {
+  if (!backends) {
+    if (!config) throw ConfigError
+    backends = config.backends
+  }
 
-export const checkAndConfigureBackends = (backends: Backends = config.backends) => {
   console.log('\nConfiguring Backends'.grey.underline)
   for (const [name, backend] of Object.entries(backends))
     checkAndConfigureBackend(name, backend)

src/backup.ts

@@ -3,11 +3,12 @@ import { Writer } from 'clitastic'
 import { config, VERBOSE } from './autorestic'
 import { getEnvFromBackend } from './backend'
 import { Locations, Location } from './types'
-import { exec } from './utils'
+import { exec, ConfigError } from './utils'
 import { CONFIG_FILE } from './config'
 import { resolve, dirname } from 'path'
 
 export const backupSingle = (name: string, from: string, to: string) => {
+  if (!config) throw ConfigError
   const writer = new Writer(name + to.blue + ' : ' + 'Backing up... ⏳')
   const backend = config.backends[to]
   const pathRelativeToConfigFile = resolve(dirname(CONFIG_FILE), from)
@@ -34,7 +35,12 @@ export const backupLocation = (name: string, backup: Location) => {
   } else backupSingle(display, backup.from, backup.to)
 }
 
-export const backupAll = (backups: Locations = config.locations) => {
+export const backupAll = (backups?: Locations) => {
+  if (!backups) {
+    if (!config) throw ConfigError
+    backups = config.locations
+  }
+
   console.log('\nBacking Up'.underline.grey)
   for (const [name, backup] of Object.entries(backups))
     backupLocation(name, backup)

src/config.ts

@@ -69,8 +69,13 @@ const findConfigFile = (): string => {
 
 export let CONFIG_FILE: string = ''
 
-export const init = (): Config => {
+export const init = (): Config | undefined => {
+  try {
     CONFIG_FILE = findConfigFile()
+  } catch (e) {
+    return
+  }
+
   const raw: Config = makeObjectKeysLowercase(
     yaml.safeLoad(readFileSync(CONFIG_FILE).toString())
   )

src/handlers.ts

@@ -15,6 +15,7 @@ import {
   exec,
   filterObjectByKey,
   singleToArray,
+  ConfigError,
 } from './utils'
 
 export type Handlers = {
@@ -22,6 +23,7 @@ export type Handlers = {
 }
 
 const parseBackend = (flags: Flags): Backends => {
+  if (!config) throw ConfigError
   if (!flags.all && !flags.backend)
     throw new Error(
       'No backends specified.'.red +
@@ -39,6 +41,7 @@ const parseBackend = (flags: Flags): Backends => {
 }
 
 const parseLocations = (flags: Flags): Locations => {
+  if (!config) throw ConfigError
   if (!flags.all && !flags.location)
     throw new Error(
       'No locations specified.'.red +
@@ -64,6 +67,7 @@ const handlers: Handlers = {
     checkAndConfigureBackends(backends)
   },
   backup(args, flags) {
+    if (!config) throw ConfigError
     checkIfResticIsAvailable()
     const locations: Locations = parseLocations(flags)
 
@@ -79,6 +83,7 @@ const handlers: Handlers = {
     console.log('\nFinished!'.underline + ' 🎉')
   },
   restore(args, flags) {
+    if (!config) throw ConfigError
     checkIfResticIsAvailable()
     const locations = parseLocations(flags)
     for (const [name, location] of Object.entries(locations)) {

src/types.ts

@@ -1,62 +1,69 @@
 type BackendLocal = {
-	type: 'local',
+  type: 'local'
-	key: string,
+  key: string
   path: string
 }
 
 type BackendSFTP = {
-	type: 'sftp',
+  type: 'sftp'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	password?: string,
+  password?: string
 }
 
 type BackendREST = {
-	type: 'rest',
+  type: 'rest'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	user?: string,
+  user?: string
   password?: string
 }
 
 type BackendS3 = {
-	type: 's3',
+  type: 's3'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	aws_access_key_id: string,
+  aws_access_key_id: string
-	aws_secret_access_key: string,
+  aws_secret_access_key: string
 }
 
 type BackendB2 = {
-	type: 'b2',
+  type: 'b2'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	b2_account_id: string,
+  b2_account_id: string
   b2_account_key: string
 }
 
 type BackendAzure = {
-	type: 'azure',
+  type: 'azure'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	azure_account_name: string,
+  azure_account_name: string
   azure_account_key: string
 }
 
 type BackendGS = {
-	type: 'gs',
+  type: 'gs'
-	key: string,
+  key: string
-	path: string,
+  path: string
-	google_project_id: string,
+  google_project_id: string
   google_application_credentials: string
 }
 
-export type Backend = BackendAzure | BackendB2 | BackendGS | BackendLocal | BackendREST | BackendS3 | BackendSFTP
+export type Backend =
+  | BackendAzure
+  | BackendB2
+  | BackendGS
+  | BackendLocal
+  | BackendREST
+  | BackendS3
+  | BackendSFTP
 
 export type Backends = { [name: string]: Backend }
 
 export type Location = {
-	from: string,
+  from: string
   to: string | string[]
 }
 

src/utils.ts

@@ -3,8 +3,11 @@ import { spawnSync, SpawnSyncOptions } from 'child_process'
 import { randomBytes } from 'crypto'
 import { createWriteStream } from 'fs'
 
-export const exec = (command: string, args: string[], { env, ...rest }: SpawnSyncOptions = {}) => {
+export const exec = (
-
+  command: string,
+  args: string[],
+  { env, ...rest }: SpawnSyncOptions = {}
+) => {
   const cmd = spawnSync(command, args, {
     ...rest,
     env: {
@@ -19,10 +22,12 @@ export const exec = (command: string, args: string[], { env, ...rest }: SpawnSyn
   return { out, err }
 }
 
-export const checkIfResticIsAvailable = () => checkIfCommandIsAvailable(
+export const checkIfResticIsAvailable = () =>
+  checkIfCommandIsAvailable(
     'restic',
-	'Restic is not installed'.red + ' https://restic.readthedocs.io/en/latest/020_installation.html#stable-releases',
+    '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)
@@ -31,22 +36,29 @@ export const checkIfCommandIsAvailable = (cmd: string, errorMsg?: string) => {
 
 export const makeObjectKeysLowercase = (object: Object): any =>
   Object.fromEntries(
-		Object.entries(object)
+    Object.entries(object).map(([key, value]) => [key.toLowerCase(), value])
-			.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 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 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 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 => {
+export const downloadFile = async (url: string, to: string) =>
+  new Promise<void>(async res => {
     const { data: file } = await axios({
       method: 'get',
       url: url,
@@ -60,4 +72,6 @@ export const downloadFile = async (url: string, to: string) => new Promise<void>
       stream.close()
       res()
     })
-})
+  })
+
+export const ConfigError = new Error('Config file not found')