remove duplicate code

src/config.ts

@@ -3,7 +3,7 @@ import { resolve } from 'path'
 import yaml from 'js-yaml'
 import { flags } from './autorestic'
 import { Backend, Config } from './types'
-import { makeObjectKeysLowercase, rand } from './utils'
+import { makeArrayIfIsNot, makeObjectKeysLowercase, rand } from './utils'
 import { homedir } from 'os'
 
 
@@ -48,8 +48,8 @@ export const normalizeAndCheckBackups = (config: Config) => {
 				`The backup "${name}" is missing some required attributes`,
 			)
 
-		if (Array.isArray(to)) for (const t of to) checkDestination(t, name)
+		for (const t of makeArrayIfIsNot(to))
-		else checkDestination(to, name)
+			checkDestination(t, name)
 	}
 }
 

src/forget.ts

@@ -3,7 +3,7 @@ import { Writer } from 'clitastic'
 import { config, VERBOSE } from './autorestic'
 import { getEnvFromBackend } from './backend'
 import { Locations, Location, Flags } from './types'
-import { exec, ConfigError, pathRelativeToConfigFile, getFlagsFromLocation } from './utils'
+import { exec, ConfigError, pathRelativeToConfigFile, getFlagsFromLocation, makeArrayIfIsNot } from './utils'
 
 
 
@@ -38,7 +38,7 @@ export const forgetLocation = (name: string, backup: Location, dryRun: boolean)
 	const filler = new Array(name.length + 3).fill(' ').join('')
 	let first = true
 
-	for (const t of Array.isArray(backup.to) ? backup.to : [backup.to]) {
+	for (const t of makeArrayIfIsNot(backup.to)) {
 		const nameOrBlankSpaces: string = first ? display : filler
 		forgetSingle(nameOrBlankSpaces, t, backup, dryRun)
 		if (first) first = false

src/handlers.ts

@@ -8,15 +8,14 @@ import { config, INSTALL_DIR, VERSION } from './autorestic'
 import { checkAndConfigureBackends, getBackendsFromLocations, getEnvFromBackend } from './backend'
 import { backupAll } from './backup'
 import { forgetAll } from './forget'
-import { Backend, Backends, Flags, Locations } from './types'
+import { Backends, Flags, Locations } from './types'
 import {
 	checkIfCommandIsAvailable,
 	checkIfResticIsAvailable,
 	downloadFile,
 	exec,
 	filterObjectByKey,
-	singleToArray,
+	ConfigError, makeArrayIfIsNot,
-	ConfigError,
 } from './utils'
 
 
@@ -35,7 +34,7 @@ const parseBackend = (flags: Flags): Backends => {
 		)
 	if (flags.all) return config.backends
 	else {
-		const backends = singleToArray<string>(flags.backend)
+		const backends = makeArrayIfIsNot<string>(flags.backend)
 		for (const backend of backends)
 			if (!config.backends[backend])
 				throw new Error('Invalid backend: '.red + backend)
@@ -55,7 +54,7 @@ const parseLocations = (flags: Flags): Locations => {
 	if (flags.all) {
 		return config.locations
 	} else {
-		const locations = singleToArray<string>(flags.location)
+		const locations = makeArrayIfIsNot<string>(flags.location)
 		for (const location of locations)
 			if (!config.locations[location])
 				throw new Error('Invalid location: '.red + location)