cleaner error handling & version bump

Fix #2: support pruning and forget via snapshot policies

.gitignore

@@ -3,7 +3,8 @@ package-lock.json
 .idea
 yarn.lock
 
-config.yml
 bin
 lib
-data
+data
+
+.autorestic.yml

README.md

@@ -1,9 +1,331 @@
 # autorestic
-High level CLI utility for restic
+High backup level CLI utility for [restic](https://restic.net/).
 
+Autorestic is a wrapper around the amazing [restic](https://restic.net/). While being amazing the restic cli can be a bit overwhelming and difficoult to manage if you have many different location that you want to backup to multiple locations. This utility is aimed at making this easier 🙂
 
-## Installation
+![Sketch](./docs/Sketch.png)
+
+## 🌈 Features
+
+- Config files, no CLI
+- Predictable
+- Backup locations to multiple backends
+- Snapshot policies and pruning
+- Simple interface
+- Fully encrypted
+
+### 📒 Docs
+
+* [Locations](#-locations)
+  * [Pruning & Deleting old files](#pruning-and-snapshot-policies)
+  * [Excluding files](#excluding-filesfolders)
+  * [Hooks](#before--after-hooks)
+* [Backends](#-backends)
+* [Commands](#-commands)
+
+## 🛳 Installation
+
+Linux & macOS. Windows is not supported.
 
 ```
-curl -s https://raw.githubusercontent.com/CupCakeArmy/autorestic/master/install.sh | sh
+curl -s https://raw.githubusercontent.com/CupCakeArmy/autorestic/master/install.sh | bash
 ```
+
+## 🚀 Quickstart
+
+### Setup
+
+First we need to configure our locations and backends. Simply create a `.autorestic.yml` either in your home directory of in the folder from which you will execute `autorestic`.
+
+Optionally you can specify the location of your config file by passing it as argument: `autorestic -c ../path/config.yml`
+
+```yaml
+locations:
+  home:
+    from: /home/me
+    to: remote
+
+  important:
+    from: /path/to/important/stuff
+    to:
+      - remote
+      - hdd
+
+backends:
+  remote:
+    type: b2
+    path: 'myBucket:backup/home'
+    B2_ACCOUNT_ID: account_id
+    B2_ACCOUNT_KEY: account_key
+
+  hdd:
+    type: local
+    path: /mnt/my_external_storage
+```
+
+Then we check if everything is correct by running the `check` command. We will pass the `-a` (or `--all`) to tell autorestic to check all the locations.
+
+If we would check only one location we could run the following: `autorestic check -l home`. Otherwise simpply check all locations with `autorestic check -a`
+
+##### Note
+
+Note that the data is automatically encrypted on the server. The key will be generated and added to your config file. Every backend will have a separate key. You should keep a copy of the keys somewhere in case your server dies. Otherwise DATA IS LOST!
+
+### 📦 Backup
+
+```
+autorestic backup -a
+```
+
+### 📼 Restore
+
+```
+autorestic restore -l home --from hdd --to /path/where/to/restore
+```
+
+### 📲 Updates
+
+Autorestic can update itself! Super handy right? Simply run `autorestic update` and we will check for you if there are updates for restic and autorestic and install them if necessary.
+
+## 🗂 Locations
+
+A location simply a folder on your machine that restic will backup. The paths can be relative from the config file. A location can have multiple backends, so that the data is secured across multiple servers.
+
+```yaml
+locations:
+  my-location-name:
+    from: path/to/backup
+    to:
+      - name-of-backend
+      - also-backup-to-this-backend
+```
+
+#### Pruning and snapshot policies
+
+Autorestic supports declaring snapshot policies for location to avoid keeping old snapshot around if you don't need them.
+
+This is based on [Restic's snapshots policies](https://restic.readthedocs.io/en/latest/060_forget.html#removing-snapshots-according-to-a-policy), and can be enabled for each location as shown below:
+
+```yaml
+locations:
+  etc:
+    from: /etc
+    to: local
+    options:
+      forget:
+        keep-last: 5             # always keep at least 5 snapshots
+        keep-hourly: 3           # keep 3 last hourly shapshots
+        keep-daily: 4            # keep 4 last daily shapshots
+        keep-weekly: 1           # keep 1 last weekly shapshots
+        keep-monthly: 12         # keep 12 last monthly shapshots
+        keep-yearly: 7           # keep 7 last yearly shapshots
+        keep-within: "2w"        # keep snapshots from the last 2 weeks
+```
+
+Pruning can be triggered using `autorestic forget -a`, for all locations, or selectively with `autorestic forget -l <location>`. **please note that contrary to the restic CLI, `restic forget` will call `restic prune` internally.**
+
+Run with the `--dry-run` flag to only print information about the process without actually pruning the snapshots. This is especially useful for debugging or testing policies:
+```
+$ autorestic forget -a --dry-run --verbose
+
+Configuring Backends
+local : Done ✓
+
+Removing old shapshots according to policy
+etc ▶ local : Removing old spnapshots… ⏳
+etc ▶ local : Running in dry-run mode, not touching data
+etc ▶ local : Forgeting old snapshots… ⏳Applying Policy: all snapshots within 2d of the newest
+keep 3 snapshots:
+ID        Time                 Host        Tags        Reasons    Paths
+-----------------------------------------------------------------------------
+531b692a  2019-12-02 12:07:28  computer                within 2w  /etc
+51659674  2019-12-02 12:08:46  computer                within 2w  /etc
+f8f8f976  2019-12-02 12:11:08  computer                within 2w  /etc
+-----------------------------------------------------------------------------
+3 snapshots
+```
+
+#### Excluding files/folders
+
+If you want to exclude certain files or folders it done easily by specifiyng the right flags in the location you desire to filter. The flags are taken straight from the [restic cli exclude rules](https://restic.readthedocs.io/en/latest/040_backup.html#excluding-files).
+
+```yaml
+locations:
+  my-location:
+    from: /data
+    to:
+      - local
+      - remote
+    options:
+      backup:
+        exclude:
+          - '*.nope'
+          - '*.abc'
+        exclude-file: .gitignore
+
+backends:
+  local:
+    ...
+   remote:
+    ...
+```
+
+#### Before / After hooks
+
+Sometimes you might want to stop an app/db before backing up data and start the service again after the backup has completed. This is what the hooks are made for. Simply add them to your location config. You can have as many commands as you wish.
+
+```yaml
+locations:
+  my-location:
+    from: /data
+    to:
+      - local
+      - remote
+    hooks:
+      before:
+        - echo "Hello"
+        - echo "Human"
+      after:
+        - echo "kthxbye"
+```
+
+## 💽 Backends
+
+Backends are the place where you data will be saved. Backups are incremental and encrypted.
+
+### Fields
+
+##### `type`
+
+Type of the backend see a list [here](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html)
+
+Supported are:
+- [Local](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#local)
+- [Backblaze B2](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#backblaze-b2)
+- [Amazon S3](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#amazon-s3)
+- [Minio](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#minio-server)
+- [Google Cloud Storage](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#google-cloud-storage)
+- [Microsoft Azure Storage](https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html#microsoft-azure-blob-storage)
+
+For each backend you need to specify the right variables as shown in the example below.
+
+##### `path`
+
+The path on the remote server.
+For object storages as
+
+##### Example
+
+```yaml
+backends:
+  name-of-backend:
+    type: b2
+    path: 'myAccount:myBucket/my/path'
+    B2_ACCOUNT_ID: backblaze_account_id
+    B2_ACCOUNT_KEY: backblaze_account_key
+```
+
+## 👉 Commands
+
+* [info](#info)
+* [check](#check)
+* [backup](#backup)
+* [forget](#forget)
+* [restore](#restore)
+* [exec](#exec)
+* [intall](#install)
+* [uninstall](#uninstall)
+* [upgrade](#upgrade)
+
+
+### Info
+
+```
+autorestic info
+```
+
+Shows all the information in the config file. Usefull for a quick overview of what location backups where.
+
+Pro tip: if it gets a bit long you can read it more easily with `autorestic info | less` 😉
+
+### Check
+
+```
+autorestic check [-b, --backend]  [-a, --all]
+```
+
+Checks the backends and configures them if needed. Can be applied to all with the `-a` flag or by specifying one or more backends with the `-b` or `--backend` flag.
+
+
+### Backup
+
+```
+autorestic backup [-l, --location] [-a, --all]
+```
+
+Performes a backup of all locations if the `-a` flag is passed. To only backup some locations pass one or more `-l` or `--location` flags.
+
+
+### Restore
+
+```
+autorestic restore [-l, --location] [--from backend] [--to <out dir>]
+```
+
+This will restore all the locations to the selected target. If for one location there are more than one backends specified autorestic will take the first one.
+
+Lets see a more realistic example (from the config above)
+```
+autorestic restore -l home --from hdd --to /path/where/to/restore
+```
+
+This will restore the location `home` to the `/path/where/to/restore` folder and taking the data from the backend `hdd`
+
+```
+autorestic restore
+```
+
+Performes a backup of all locations if the `-a` flag is passed. To only backup some locations pass one or more `-l` or `--location` flags.
+
+### Forget
+
+
+```
+autorestic forget [-l, --location] [-a, --all] [--dry-run]
+```
+
+This will prune and remove old data form the backends according to the [keep policy you have specified for the location](#pruning-and-snapshot-policies)
+
+The `--dry-run` flag will do a dry run showing what would have been deleted, but won't touch the actual data.
+
+
+### Exec
+
+```
+autorestic exec [-b, --backend]  [-a, --all] <command> -- [native options]
+```
+
+This is avery handy command which enables you to run any native restic command on desired backends. An example would be listing all the snapshots of all your backends:
+
+```
+autorestic exec -a -- snapshots
+```
+
+#### Install
+
+Installs both restic and autorestic
+
+#### Uninstall 
+
+Uninstall both restic and autorestic
+
+#### Upgrade
+
+Upgrades both restic and autorestic automagically
+
+## Contributors
+
+This amazing people helped the project!
+
+- @ChanceM [Docs]
+- @EliotBerriot [Docs, Pruning, S3]

config.sample.yml

@@ -1,18 +0,0 @@
-locations:
-  home:
-    from: /home/myUser
-    to: remote
-  important:
-    from: /path/to/important/stuff
-    to:
-      - remote
-      - hdd
-backends:
-  remote:
-    type: b2
-    path: 'myBucket:backup/home'
-    B2_ACCOUNT_ID: account_id
-    B2_ACCOUNT_KEY: account_key
-  hdd:
-    type: local
-    path: /mnt/my_external_storage

install.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 OUT_FILE=/usr/local/bin/autorestic
 

package.json

@@ -4,22 +4,22 @@
 		"build": "tsc",
 		"build:watch": "tsc -w",
 		"dev": "tsnd --no-notify --respawn ./src/autorestic.ts",
-		"bin": "npm run build && pkg lib/autorestic.js --targets latest-macos-x64,latest-linux-x64 --out-path bin"
+		"bin": "yarn run build && pkg lib/autorestic.js --targets latest-macos-x64,latest-linux-x64 --out-path bin"
 	},
 	"devDependencies": {
-		"@types/decompress": "^4.2.3",
 		"@types/js-yaml": "^3.12.1",
 		"@types/minimist": "^1.2.0",
 		"@types/node": "^12.11.7",
 		"pkg": "^4.4.0",
 		"ts-node-dev": "^1.0.0-pre.40",
-		"typescript": "^3.5.1"
+		"typescript": "^3.7"
 	},
 	"dependencies": {
 		"axios": "^0.19.0",
 		"clitastic": "0.0.1",
 		"colors": "^1.3.3",
 		"js-yaml": "^3.13.1",
-		"minimist": "^1.2.0"
+		"minimist": "^1.2.0",
+		"uhrwerk": "^1.0.0"
 	}
-}
+}

src/autorestic.ts

@@ -3,43 +3,44 @@ import minimist from 'minimist'
 
 import { init } from './config'
 import handlers, { error, help } from './handlers'
-import { Config } from './types'
+
+
 
 process.on('uncaughtException', err => {
-  console.log(err.message)
-  process.exit(1)
+	console.log(err.message)
+	process.exit(1)
 })
 
 export const { _: commands, ...flags } = minimist(process.argv.slice(2), {
-  alias: {
-    c: 'config',
-    v: 'version',
-    h: 'help',
-    a: 'all',
-    l: 'location',
-    b: 'backend',
-  },
-  boolean: ['a'],
-  string: ['l', 'b'],
+	alias: {
+		c: 'config',
+		v: 'version',
+		h: 'help',
+		a: 'all',
+		l: 'location',
+		b: 'backend',
+		d: 'dry-run',
+	},
+	boolean: ['a', 'd'],
+	string: ['l', 'b'],
 })
 
-export const VERSION = '0.5'
+export const VERSION = '0.12'
 export const INSTALL_DIR = '/usr/local/bin'
 export const VERBOSE = flags.verbose
 
-if (flags.version) {
-  console.log('version'.grey, VERSION)
-  process.exit(0)
-}
-
 export const config = init()
 
-function main() {
-  if (commands.length < 1) return help()
 
-  const command: string = commands[0]
-  const args: string[] = commands.slice(1)
-  ;(handlers[command] || error)(args, flags)
+async function main() {
+	if (commands.length < 1) return help()
+
+	const command: string = commands[0]
+	const args: string[] = commands.slice(1)
+
+	const fn = handlers[command] || error
+	await fn(args, flags)
 }
 
-main()
+
+main().catch((e: Error) => console.error(e.message))

src/backend.ts

@@ -1,58 +1,67 @@
 import { Writer } from 'clitastic'
 
 import { config, VERBOSE } from './autorestic'
-import { Backend, Backends } from './types'
+import { Backend, Backends, Locations } from './types'
 import { exec, ConfigError } from './utils'
 
-const ALREADY_EXISTS = /(?=.*exists)(?=.*already)(?=.*config).*/
+
+
+const ALREADY_EXISTS = /(?=.*already)(?=.*config).*/
 
 export const getPathFromBackend = (backend: Backend): string => {
-  switch (backend.type) {
-    case 'local':
-      return backend.path
-    case 'b2':
-    case 'azure':
-    case 'gs':
-    case 's3':
-      return `${backend.type}:${backend.path}`
-    case 'sftp':
-    case 'rest':
-      throw new Error(`Unsupported backend type: "${backend.type}"`)
-    default:
-      throw new Error(`Unknown backend type.`)
-  }
+	switch (backend.type) {
+		case 'local':
+			return backend.path
+		case 'b2':
+		case 'azure':
+		case 'gs':
+		case 's3':
+			return `${backend.type}:${backend.path}`
+		case 'sftp':
+		case 'rest':
+			throw new Error(`Unsupported backend type: "${backend.type}"`)
+		default:
+			throw new Error(`Unknown backend type.`)
+	}
 }
 
 export const getEnvFromBackend = (backend: Backend) => {
-  const { type, path, key, ...rest } = backend
-  return {
-    RESTIC_PASSWORD: key,
-    RESTIC_REPOSITORY: getPathFromBackend(backend),
-    ...rest,
-  }
+	const { type, path, key, ...rest } = backend
+	return {
+		RESTIC_PASSWORD: key,
+		RESTIC_REPOSITORY: getPathFromBackend(backend),
+		...rest,
+	}
+}
+
+export const getBackendsFromLocations = (locations: Locations): string[] => {
+	const backends = new Set<string>()
+	for (const to of Object.values(locations).map(location => location.to))
+		Array.isArray(to) ? to.forEach(t => backends.add(t)) : backends.add(to)
+	return Array.from(backends)
 }
 
 export const checkAndConfigureBackend = (name: string, backend: Backend) => {
-  const writer = new Writer(name.blue + ' : ' + 'Configuring... ⏳')
-  const env = getEnvFromBackend(backend)
+	const writer = new Writer(name.blue + ' : ' + 'Configuring... ⏳')
+	const env = getEnvFromBackend(backend)
 
-  const { out, err } = exec('restic', ['init'], { env })
+	const { out, err } = exec('restic', ['init'], { env })
 
-  if (err.length > 0 && !ALREADY_EXISTS.test(err))
-    throw new Error(`Could not load the backend "${name}": ${err}`)
+	if (err.length > 0 && !ALREADY_EXISTS.test(err))
+		throw new Error(`Could not load the backend "${name}": ${err}`)
 
-  if (VERBOSE && out.length > 0) console.log(out)
+	if (VERBOSE && out.length > 0) console.log(out)
 
-  writer.done(name.blue + ' : ' + 'Done ✓'.green)
+	writer.done(name.blue + ' : ' + 'Done ✓'.green)
 }
 
 export const checkAndConfigureBackends = (backends?: Backends) => {
-  if (!backends) {
-    if (!config) throw ConfigError
-    backends = config.backends
-  }
+	if (!backends) {
+		if (!config) throw ConfigError
+		backends = config.backends
+	}
 
-  console.log('\nConfiguring Backends'.grey.underline)
-  for (const [name, backend] of Object.entries(backends))
-    checkAndConfigureBackend(name, backend)
+	console.log('\nConfiguring Backends'.grey.underline)
+	for (const [name, backend] of Object.entries(backends))
+		checkAndConfigureBackend(name, backend)
 }

src/backup.ts

@@ -3,45 +3,66 @@ import { Writer } from 'clitastic'
 import { config, VERBOSE } from './autorestic'
 import { getEnvFromBackend } from './backend'
 import { Locations, Location } from './types'
-import { exec, ConfigError } from './utils'
-import { CONFIG_FILE } from './config'
-import { resolve, dirname } from 'path'
+import {
+	exec,
+	ConfigError,
+	pathRelativeToConfigFile,
+	getFlagsFromLocation,
+	makeArrayIfIsNot,
+	execPlain,
+	MeasureDuration, fill,
+} from './utils'
 
-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)
 
-  const cmd = exec('restic', ['backup', pathRelativeToConfigFile], {
-    env: getEnvFromBackend(backend),
-  })
 
-  if (VERBOSE) console.log(cmd.out, cmd.err)
-  writer.done(name + to.blue + ' : ' + 'Done ✓'.green)
+export const backupSingle = (name: string, to: string, location: Location) => {
+	if (!config) throw ConfigError
+	const delta = new MeasureDuration()
+	const writer = new Writer(name + to.blue + ' : ' + 'Backing up... ⏳')
+
+	const backend = config.backends[to]
+	const path = pathRelativeToConfigFile(location.from)
+
+	const cmd = exec(
+		'restic',
+		['backup', path, ...getFlagsFromLocation(location, 'backup')],
+		{ env: getEnvFromBackend(backend) },
+	)
+
+	if (VERBOSE) console.log(cmd.out, cmd.err)
+	writer.done(`${name}${to.blue} : ${'Done ✓'.green} (${delta.finished(true)})`)
 }
 
-export const backupLocation = (name: string, backup: Location) => {
-  const display = name.yellow + ' ▶ '
-  if (Array.isArray(backup.to)) {
-    let first = true
-    for (const t of backup.to) {
-      const nameOrBlankSpaces: string = first
-        ? display
-        : new Array(name.length + 3).fill(' ').join('')
-      backupSingle(nameOrBlankSpaces, backup.from, t)
-      if (first) first = false
-    }
-  } else backupSingle(display, backup.from, backup.to)
+export const backupLocation = (name: string, location: Location) => {
+	const display = name.yellow + ' ▶ '
+	const filler = fill(name.length + 3)
+	let first = true
+
+	if (location.hooks && location.hooks.before)
+		for (const command of makeArrayIfIsNot(location.hooks.before)) {
+			const cmd = execPlain(command)
+			if (cmd) console.log(cmd.out, cmd.err)
+		}
+
+	for (const t of makeArrayIfIsNot(location.to)) {
+		backupSingle(first ? display : filler, t, location)
+		if (first) first = false
+	}
+
+	if (location.hooks && location.hooks.after)
+		for (const command of makeArrayIfIsNot(location.hooks.after)) {
+			const cmd = execPlain(command)
+			if (cmd) console.log(cmd.out, cmd.err)
+		}
 }
 
-export const backupAll = (backups?: Locations) => {
-  if (!backups) {
-    if (!config) throw ConfigError
-    backups = config.locations
-  }
+export const backupAll = (locations?: Locations) => {
+	if (!locations) {
+		if (!config) throw ConfigError
+		locations = config.locations
+	}
 
-  console.log('\nBacking Up'.underline.grey)
-  for (const [name, backup] of Object.entries(backups))
-    backupLocation(name, backup)
+	console.log('\nBacking Up'.underline.grey)
+	for (const [name, location] of Object.entries(locations))
+		backupLocation(name, location)
 }

src/config.ts

@@ -1,89 +1,91 @@
 import { readFileSync, writeFileSync, statSync } from 'fs'
 import { resolve } from 'path'
-import yaml from 'js-yaml'
-import { flags } from './autorestic'
-import { Backend, Config } from './types'
-import { makeObjectKeysLowercase, rand } from './utils'
 import { homedir } from 'os'
 
+import yaml from 'js-yaml'
+
+import { flags } from './autorestic'
+import { Backend, Config } from './types'
+import { makeArrayIfIsNot, makeObjectKeysLowercase, rand } from './utils'
+
+
+
 export const normalizeAndCheckBackends = (config: Config) => {
-  config.backends = makeObjectKeysLowercase(config.backends)
+	config.backends = makeObjectKeysLowercase(config.backends)
 
-  for (const [name, { type, path, key, ...rest }] of Object.entries(
-    config.backends
-  )) {
-    if (!type || !path)
-      throw new Error(
-        `The backend "${name}" is missing some required attributes`
-      )
+	for (const [name, { type, path, key, ...rest }] of Object.entries(
+		config.backends,
+	)) {
+		if (!type || !path)
+			throw new Error(
+				`The backend "${name}" is missing some required attributes`,
+			)
 
-    const tmp: any = {
-      type,
-      path,
-      key: key || rand(128),
-    }
-    for (const [key, value] of Object.entries(rest))
-      tmp[key.toUpperCase()] = value
+		const tmp: any = {
+			type,
+			path,
+			key: key || rand(128),
+		}
+		for (const [key, value] of Object.entries(rest))
+			tmp[key.toUpperCase()] = value
 
-    config.backends[name] = tmp as Backend
-  }
+		config.backends[name] = tmp as Backend
+	}
 }
 
 export const normalizeAndCheckBackups = (config: Config) => {
-  config.locations = makeObjectKeysLowercase(config.locations)
-  const backends = Object.keys(config.backends)
+	config.locations = makeObjectKeysLowercase(config.locations)
+	const backends = Object.keys(config.backends)
 
-  const checkDestination = (backend: string, backup: string) => {
-    if (!backends.includes(backend))
-      throw new Error(`Cannot find the backend "${backend}" for "${backup}"`)
-  }
+	const checkDestination = (backend: string, backup: string) => {
+		if (!backends.includes(backend))
+			throw new Error(`Cannot find the backend "${backend}" for "${backup}"`)
+	}
 
-  for (const [name, { from, to, ...rest }] of Object.entries(
-    config.locations
-  )) {
-    if (!from || !to)
-      throw new Error(
-        `The backup "${name}" is missing some required attributes`
-      )
+	for (const [name, { from, to, ...rest }] of Object.entries(
+		config.locations,
+	)) {
+		if (!from || !to)
+			throw new Error(
+				`The backup "${name}" is missing some required attributes`,
+			)
 
-    if (Array.isArray(to)) for (const t of to) checkDestination(t, name)
-    else checkDestination(to, name)
-  }
+		for (const t of makeArrayIfIsNot(to))
+			checkDestination(t, name)
+	}
 }
 
-const findConfigFile = (): string => {
-  const config = '.autorestic.yml'
-  const paths = [
-    resolve(flags.config || ''),
-    resolve('./' + config),
-    homedir() + '/' + config,
-  ]
-  for (const path of paths) {
-    try {
-      const file = statSync(path)
-      if (file.isFile()) return path
-    } catch (e) {}
-  }
-  throw new Error('No Config file found')
+const findConfigFile = (): string | undefined => {
+	const config = '.autorestic.yml'
+	const paths = [
+		resolve(flags.config || ''),
+		resolve('./' + config),
+		homedir() + '/' + config,
+	]
+	for (const path of paths) {
+		try {
+			const file = statSync(path)
+			if (file.isFile()) return path
+		} catch (e) {
+		}
+	}
 }
 
 export let CONFIG_FILE: string = ''
 
 export const init = (): Config | undefined => {
-  try {
-    CONFIG_FILE = findConfigFile()
-  } catch (e) {
-    return
-  }
+	const file = findConfigFile()
+	if (file) CONFIG_FILE = file
+	else return
 
-  const raw: Config = makeObjectKeysLowercase(
-    yaml.safeLoad(readFileSync(CONFIG_FILE).toString())
-  )
+	const raw: Config = makeObjectKeysLowercase(
+		yaml.safeLoad(readFileSync(CONFIG_FILE).toString()),
+	)
 
-  normalizeAndCheckBackends(raw)
-  normalizeAndCheckBackups(raw)
+	normalizeAndCheckBackends(raw)
+	normalizeAndCheckBackups(raw)
 
-  writeFileSync(CONFIG_FILE, yaml.safeDump(raw))
+	writeFileSync(CONFIG_FILE, yaml.safeDump(raw))
 
-  return raw
+	return raw
 }

src/forget.ts

@@ -0,0 +1,67 @@
+import { Writer } from 'clitastic'
+
+import { config, VERBOSE } from './autorestic'
+import { getEnvFromBackend } from './backend'
+import { Locations, Location, Flags } from './types'
+import {
+	exec,
+	ConfigError,
+	pathRelativeToConfigFile,
+	getFlagsFromLocation,
+	makeArrayIfIsNot,
+	fill,
+} from './utils'
+
+
+
+export const forgetSingle = (name: string, to: string, location: Location, dryRun: boolean) => {
+	if (!config) throw ConfigError
+	const base = name + to.blue + ' : '
+	const writer = new Writer(base + 'Removing old snapshots… ⏳')
+
+	const backend = config.backends[to]
+	const path = pathRelativeToConfigFile(location.from)
+	const flags = getFlagsFromLocation(location, 'forget')
+
+	if (flags.length == 0) {
+		writer.done(base + 'skipping, no policy declared')
+		return
+	}
+	if (dryRun) flags.push('--dry-run')
+
+	writer.replaceLn(base + 'Forgetting old snapshots… ⏳')
+	const cmd = exec(
+		'restic',
+		['forget', '--path', path, '--prune', ...flags],
+		{ env: getEnvFromBackend(backend) },
+	)
+
+	if (VERBOSE) console.log(cmd.out, cmd.err)
+	writer.done(base + 'Done ✓'.green)
+}
+
+export const forgetLocation = (name: string, backup: Location, dryRun: boolean) => {
+	const display = name.yellow + ' ▶ '
+	const filler = fill(name.length + 3)
+	let first = true
+
+	for (const t of makeArrayIfIsNot(backup.to)) {
+		const nameOrBlankSpaces: string = first ? display : filler
+		forgetSingle(nameOrBlankSpaces, t, backup, dryRun)
+		if (first) first = false
+	}
+}
+
+export const forgetAll = (backups?: Locations, flags?: Flags) => {
+	if (!config) throw ConfigError
+	if (!backups) {
+		backups = config.locations
+	}
+
+	console.log('\nRemoving old snapshots according to policy'.underline.grey)
+	const dryRun = flags ? flags['dry-run'] : false
+	if (dryRun) console.log('Running in dry-run mode, not touching data\n'.yellow)
+
+	for (const [name, backup] of Object.entries(backups))
+		forgetLocation(name, backup, dryRun)
+}

src/handlers.ts

@@ -1,241 +1,273 @@
-import axios from 'axios'
-import { Writer } from 'clitastic'
-import { unlinkSync } from 'fs'
+import { chmodSync, renameSync, unlinkSync } from 'fs'
 import { tmpdir } from 'os'
 import { join, resolve } from 'path'
 
+import axios from 'axios'
+import { Writer } from 'clitastic'
+
 import { config, INSTALL_DIR, VERSION } from './autorestic'
-import { checkAndConfigureBackends, getEnvFromBackend } from './backend'
+import { checkAndConfigureBackends, getBackendsFromLocations, getEnvFromBackend } from './backend'
 import { backupAll } from './backup'
+import { forgetAll } from './forget'
+import showAll from './info'
 import { Backends, Flags, Locations } from './types'
 import {
-  checkIfCommandIsAvailable,
-  checkIfResticIsAvailable,
-  downloadFile,
-  exec,
-  filterObjectByKey,
-  singleToArray,
-  ConfigError,
+	checkIfCommandIsAvailable,
+	checkIfResticIsAvailable,
+	downloadFile,
+	exec,
+	filterObjectByKey,
+	ConfigError, makeArrayIfIsNot,
 } from './utils'
 
+
+
 export type Handlers = {
-  [command: string]: (args: string[], flags: Flags) => void
+	[command: string]: (args: string[], flags: Flags) => void
 }
 
 const parseBackend = (flags: Flags): Backends => {
-  if (!config) throw ConfigError
-  if (!flags.all && !flags.backend)
-    throw new Error(
-      'No backends specified.'.red +
-        '\n--all [-a]\t\t\t\tCheck all.' +
-        '\n--backend [-b] myBackend\t\tSpecify one or more backend'
-    )
-  if (flags.all) return config.backends
-  else {
-    const backends = singleToArray<string>(flags.backend)
-    for (const backend of backends)
-      if (!config.backends[backend])
-        throw new Error('Invalid backend: '.red + backend)
-    return filterObjectByKey(config.backends, backends)
-  }
+	if (!config) throw ConfigError
+	if (!flags.all && !flags.backend)
+		throw new Error(
+			'No backends specified.'.red +
+			'\n--all [-a]\t\t\t\tCheck all.' +
+			'\n--backend [-b] myBackend\t\tSpecify one or more backend',
+		)
+	if (flags.all) return config.backends
+	else {
+		const backends = makeArrayIfIsNot<string>(flags.backend)
+		for (const backend of backends)
+			if (!config.backends[backend])
+				throw new Error('Invalid backend: '.red + backend)
+		return filterObjectByKey(config.backends, backends)
+	}
 }
 
 const parseLocations = (flags: Flags): Locations => {
-  if (!config) throw ConfigError
-  if (!flags.all && !flags.location)
-    throw new Error(
-      'No locations specified.'.red +
-        '\n--all [-a]\t\t\t\tBackup all.' +
-        '\n--location [-l] site1\t\t\tSpecify one or more locations'
-    )
+	if (!config) throw ConfigError
+	if (!flags.all && !flags.location)
+		throw new Error(
+			'No locations specified.'.red +
+			'\n--all [-a]\t\t\t\tBackup all.' +
+			'\n--location [-l] site1\t\t\tSpecify one or more locations',
+		)
 
-  if (flags.all) {
-    return config.locations
-  } else {
-    const locations = singleToArray<string>(flags.location)
-    for (const location of locations)
-      if (!config.locations[location])
-        throw new Error('Invalid location: '.red + location)
-    return filterObjectByKey(config.locations, locations)
-  }
+	if (flags.all) {
+		return config.locations
+	} else {
+		const locations = makeArrayIfIsNot<string>(flags.location)
+		for (const location of locations)
+			if (!config.locations[location])
+				throw new Error('Invalid location: '.red + location)
+		return filterObjectByKey(config.locations, locations)
+	}
 }
 
 const handlers: Handlers = {
-  check(args, flags) {
-    checkIfResticIsAvailable()
-    const backends = parseBackend(flags)
-    checkAndConfigureBackends(backends)
-  },
-  backup(args, flags) {
-    if (!config) throw ConfigError
-    checkIfResticIsAvailable()
-    const locations: Locations = parseLocations(flags)
+	check(args, flags) {
+		checkIfResticIsAvailable()
+		const backends = parseBackend(flags)
+		checkAndConfigureBackends(backends)
+	},
+	backup(args, flags) {
+		if (!config) throw ConfigError
+		checkIfResticIsAvailable()
+		const locations: Locations = parseLocations(flags)
 
-    const backends = new Set<string>()
-    for (const to of Object.values(locations).map(location => location.to))
-      Array.isArray(to) ? to.forEach(t => backends.add(t)) : backends.add(to)
+		checkAndConfigureBackends(
+			filterObjectByKey(config.backends, getBackendsFromLocations(locations)),
+		)
+		backupAll(locations)
 
-    checkAndConfigureBackends(
-      filterObjectByKey(config.backends, Array.from(backends))
-    )
-    backupAll(locations)
+		console.log('\nFinished!'.underline + ' 🎉')
+	},
+	restore(args, flags) {
+		if (!config) throw ConfigError
+		checkIfResticIsAvailable()
 
-    console.log('\nFinished!'.underline + ' 🎉')
-  },
-  restore(args, flags) {
-    if (!config) throw ConfigError
-    checkIfResticIsAvailable()
-    const locations = parseLocations(flags)
-    for (const [name, location] of Object.entries(locations)) {
-      const w = new Writer(name.green + `\t\tRestoring... ⏳`)
-      const env = getEnvFromBackend(
-        config.backends[
-          Array.isArray(location.to) ? location.to[0] : location.to
-        ]
-      )
+		if (!flags.to) {
+			console.log(`You need to specify the restore path with --to`.red)
+			return
+		}
 
-      exec(
-        'restic',
-        ['restore', 'latest', '--path', resolve(location.from), ...args],
-        { env }
-      )
-      w.done(name.green + '\t\tDone 🎉')
-    }
-  },
-  exec(args, flags) {
-    checkIfResticIsAvailable()
-    const backends = parseBackend(flags)
-    for (const [name, backend] of Object.entries(backends)) {
-      console.log(`\n${name}:\n`.grey.underline)
-      const env = getEnvFromBackend(backend)
+		const locations = parseLocations(flags)
+		for (const [name, location] of Object.entries(locations)) {
+			const baseText = name.green + '\t\t'
+			const w = new Writer(baseText + `Starting...`)
 
-      const { out, err } = exec('restic', args, { env })
-      console.log(out, err)
-    }
-  },
-  async install() {
-    try {
-      checkIfResticIsAvailable()
-      console.log('Restic is already installed')
-      return
-    } catch (e) {}
+			let backend: string = Array.isArray(location.to) ? location.to[0] : location.to
+			if (flags.from) {
+				if (!location.to.includes(flags.from)) {
+					w.done(baseText + `Backend ${flags.from} is not a valid location for ${name}`.red)
+					continue
+				}
+				backend = flags.from
+				w.replaceLn(baseText + `Restoring from ${backend.blue}...`)
+			} else if (Array.isArray(location.to) && location.to.length > 1) {
+				w.replaceLn(baseText + `Restoring from ${backend.blue}...\tTo select a specific backend pass the ${'--from'.blue} flag`)
+			}
+			const env = getEnvFromBackend(config.backends[backend])
 
-    const w = new Writer('Checking latest version... ⏳')
-    checkIfCommandIsAvailable('bzip2')
-    const { data: json } = await axios({
-      method: 'get',
-      url: 'https://api.github.com/repos/restic/restic/releases/latest',
-      responseType: 'json',
-    })
+			exec(
+				'restic',
+				['restore', 'latest', '--path', resolve(location.from), '--target', flags.to],
+				{ env },
+			)
+			w.done(name.green + '\t\tDone 🎉')
+		}
+	},
+	forget(args, flags) {
+		if (!config) throw ConfigError
+		checkIfResticIsAvailable()
+		const locations: Locations = parseLocations(flags)
 
-    const archMap: { [a: string]: string } = {
-      x32: '386',
-      x64: 'amd64',
-    }
+		checkAndConfigureBackends(
+			filterObjectByKey(config.backends, getBackendsFromLocations(locations)),
+		)
+		forgetAll(locations, flags)
 
-    w.replaceLn('Downloading binary... 🌎')
-    const name = `${json.name.replace(' ', '_')}_${process.platform}_${
-      archMap[process.arch]
-    }.bz2`
-    const dl = json.assets.find((asset: any) => asset.name === name)
-    if (!dl)
-      return console.log(
-        'Cannot get the right binary.'.red,
-        'Please see https://bit.ly/2Y1Rzai'
-      )
+		console.log('\nFinished!'.underline + ' 🎉')
+	},
+	exec(args, flags) {
+		checkIfResticIsAvailable()
+		const backends = parseBackend(flags)
+		for (const [name, backend] of Object.entries(backends)) {
+			console.log(`\n${name}:\n`.grey.underline)
+			const env = getEnvFromBackend(backend)
 
-    const tmp = join(tmpdir(), name)
-    const extracted = tmp.slice(0, -4) //without the .bz2
+			const { out, err } = exec('restic', args, { env })
+			console.log(out, err)
+		}
+	},
+	async info() {
+		showAll()
+	},
+	async install() {
+		try {
+			checkIfResticIsAvailable()
+			console.log('Restic is already installed')
+			return
+		} catch {
+		}
 
-    await downloadFile(dl.browser_download_url, tmp)
+		const w = new Writer('Checking latest version... ⏳')
+		checkIfCommandIsAvailable('bzip2')
+		const { data: json } = await axios({
+			method: 'get',
+			url: 'https://api.github.com/repos/restic/restic/releases/latest',
+			responseType: 'json',
+		})
 
-    // TODO: Native bz2
-    // Decompress
-    w.replaceLn('Decompressing binary... 📦')
-    exec('bzip2', ['-dk', tmp])
-    unlinkSync(tmp)
+		const archMap: { [a: string]: string } = {
+			x32: '386',
+			x64: 'amd64',
+		}
 
-    w.replaceLn(`Moving to ${INSTALL_DIR} 🚙`)
-    exec('chmod', ['+x', extracted])
-    exec('mv', [extracted, INSTALL_DIR + '/restic'])
+		w.replaceLn('Downloading binary... 🌎')
+		const name = `${json.name.replace(' ', '_')}_${process.platform}_${archMap[process.arch]}.bz2`
+		const dl = json.assets.find((asset: any) => asset.name === name)
+		if (!dl)
+			return console.log(
+				'Cannot get the right binary.'.red,
+				'Please see https://bit.ly/2Y1Rzai',
+			)
 
-    w.done(
-      `\nFinished! restic is installed under: ${INSTALL_DIR}`.underline + ' 🎉'
-    )
-  },
-  uninstall() {
-    for (const bin of ['restic', 'autorestic'])
-      try {
-        unlinkSync(INSTALL_DIR + '/' + bin)
-        console.log(`Finished! ${bin} was uninstalled`)
-      } catch (e) {
-        console.log(`${bin} is already uninstalled`.red)
-      }
-  },
-  async update() {
-    checkIfResticIsAvailable()
-    const w = new Writer('Checking for latest restic version... ⏳')
-    exec('restic', ['self-update'])
+		const tmp = join(tmpdir(), name)
+		const extracted = tmp.slice(0, -4) //without the .bz2
 
-    w.replaceLn('Checking for latest autorestic version... ⏳')
-    const { data: json } = await axios({
-      method: 'get',
-      url:
-        'https://api.github.com/repos/cupcakearmy/autorestic/releases/latest',
-      responseType: 'json',
-    })
+		await downloadFile(dl.browser_download_url, tmp)
 
-    if (json.tag_name != VERSION) {
-      const platformMap: { [key: string]: string } = {
-        darwin: 'macos',
-      }
+		w.replaceLn('Decompressing binary... 📦')
+		exec('bzip2', ['-dk', tmp])
+		unlinkSync(tmp)
 
-      const name = `autorestic_${platformMap[process.platform] ||
-        process.platform}_${process.arch}`
-      const dl = json.assets.find((asset: any) => asset.name === name)
+		w.replaceLn(`Moving to ${INSTALL_DIR} 🚙`)
+		chmodSync(extracted, 0o755)
+		renameSync(extracted, INSTALL_DIR + '/restic')
 
-      const to = INSTALL_DIR + '/autorestic'
-      w.replaceLn('Downloading binary... 🌎')
-      await downloadFile(dl.browser_download_url, to)
+		w.done(
+			`\nFinished! restic is installed under: ${INSTALL_DIR}`.underline + ' 🎉',
+		)
+	},
+	uninstall() {
+		for (const bin of ['restic', 'autorestic'])
+			try {
+				unlinkSync(INSTALL_DIR + '/' + bin)
+				console.log(`Finished! ${bin} was uninstalled`)
+			} catch (e) {
+				console.log(`${bin} is already uninstalled`.red)
+			}
+	},
+	async update() {
+		checkIfResticIsAvailable()
+		const w = new Writer('Checking for latest restic version... ⏳')
+		exec('restic', ['self-update'])
 
-      exec('chmod', ['+x', to])
-    }
+		w.replaceLn('Checking for latest autorestic version... ⏳')
+		const { data: json } = await axios({
+			method: 'get',
+			url:
+				'https://api.github.com/repos/cupcakearmy/autorestic/releases/latest',
+			responseType: 'json',
+		})
 
-    w.done('All up to date! 🚀')
-  },
+		if (json.tag_name != VERSION) {
+			const platformMap: { [key: string]: string } = {
+				darwin: 'macos',
+			}
+
+			const name = `autorestic_${platformMap[process.platform] || process.platform}_${process.arch}`
+			const dl = json.assets.find((asset: any) => asset.name === name)
+
+			const to = INSTALL_DIR + '/autorestic'
+			w.replaceLn('Downloading binary... 🌎')
+			await downloadFile(dl.browser_download_url, to)
+
+			exec('chmod', ['+x', to])
+		}
+
+		w.done('All up to date! 🚀')
+	},
+	version() {
+		console.log('version'.grey, VERSION)
+	},
 }
 
 export const help = () => {
-  console.log(
-    '\nAutorestic'.blue +
-      ` - ${VERSION} - Easy Restic CLI Utility` +
-      '\n' +
-      '\nOptions:'.yellow +
-      `\n  -c, --config                                                          Specify config file. Default: .autorestic.yml` +
-      '\n' +
-      '\nCommands:'.yellow +
-      '\n  check    [-b, --backend]  [-a, --all]                                 Check backends' +
-      '\n  backup   [-l, --location] [-a, --all]                                 Backup all or specified locations' +
-      '\n  restore  [-l, --location] [-- --target <out dir>]                     Restore all or specified locations' +
-      '\n' +
-      '\n  exec     [-b, --backend]  [-a, --all] <command> -- [native options]   Execute native restic command' +
-      '\n' +
-      '\n  install                                                               install restic' +
-      '\n  uninstall                                                             uninstall restic' +
-      '\n  update                                                                update restic' +
-      '\n  help                                                                  Show help' +
-      '\n' +
-      '\nExamples: '.yellow +
-      'https://git.io/fjVbg' +
-      '\n'
-  )
+	console.log(
+		'\nAutorestic'.blue +
+		` - ${VERSION} - Easy Restic CLI Utility` +
+		'\n' +
+		'\nOptions:'.yellow +
+		`\n  -c, --config                                                          Specify config file. Default: .autorestic.yml` +
+		'\n' +
+		'\nCommands:'.yellow +
+		'\n  info                                                                  Show all locations and backends' +
+		'\n  check    [-b, --backend]  [-a, --all]                                 Check backends' +
+		'\n  backup   [-l, --location] [-a, --all]                                 Backup all or specified locations' +
+		'\n  forget   [-l, --location] [-a, --all] [--dry-run]                     Forget old snapshots according to declared policies' +
+		'\n  restore  [-l, --location] [--from backend] [--to <out dir>]           Restore all or specified locations' +
+		'\n' +
+		'\n  exec     [-b, --backend]  [-a, --all] <command> -- [native options]   Execute native restic command' +
+		'\n' +
+		'\n  install                                                               install restic' +
+		'\n  uninstall                                                             uninstall restic' +
+		'\n  update                                                                update restic' +
+		'\n  help                                                                  Show help' +
+		'\n' +
+		'\nExamples: '.yellow +
+		'https://git.io/fjVbg' +
+		'\n',
+	)
 }
+
 export const error = () => {
-  help()
-  console.log(
-    `Invalid Command:`.red.underline,
-    `${process.argv.slice(2).join(' ')}`
-  )
+	help()
+	console.log(
+		`Invalid Command:`.red.underline,
+		`${process.argv.slice(2).join(' ')}`,
+	)
 }
 
 export default handlers

src/info.ts

@@ -0,0 +1,28 @@
+import { config } from './autorestic'
+import { ConfigError, fill, treeToString } from './utils'
+
+
+
+const showAll = () => {
+	if (!config) throw ConfigError
+
+	console.log('\n\n' + fill(32, '_') + 'LOCATIONS:'.underline)
+	for (const [key, data] of Object.entries(config.locations)) {
+		console.log(`\n${key.blue.underline}:`)
+		console.log(treeToString(
+			data,
+			['to:', 'from:', 'hooks:', 'options:'],
+		))
+	}
+
+	console.log('\n\n' + fill(32, '_') + 'BACKENDS:'.underline)
+	for (const [key, data] of Object.entries(config.backends)) {
+		console.log(`\n${key.blue.underline}:`)
+		console.log(treeToString(
+			data,
+			['type:', 'path:', 'key:'],
+		))
+	}
+}
+
+export default showAll

src/types.ts

@@ -1,77 +1,94 @@
+export type StringOrArray = string | string[]
+
+// BACKENDS
+
 type BackendLocal = {
-  type: 'local'
-  key: string
-  path: string
+	type: 'local'
+	key: string
+	path: string
 }
 
 type BackendSFTP = {
-  type: 'sftp'
-  key: string
-  path: string
-  password?: string
+	type: 'sftp'
+	key: string
+	path: string
+	password?: string
 }
 
 type BackendREST = {
-  type: 'rest'
-  key: string
-  path: string
-  user?: string
-  password?: string
+	type: 'rest'
+	key: string
+	path: string
+	user?: string
+	password?: string
 }
 
 type BackendS3 = {
-  type: 's3'
-  key: string
-  path: string
-  aws_access_key_id: string
-  aws_secret_access_key: string
+	type: 's3'
+	key: string
+	path: string
+	aws_access_key_id: string
+	aws_secret_access_key: string
 }
 
 type BackendB2 = {
-  type: 'b2'
-  key: string
-  path: string
-  b2_account_id: string
-  b2_account_key: string
+	type: 'b2'
+	key: string
+	path: string
+	b2_account_id: string
+	b2_account_key: string
 }
 
 type BackendAzure = {
-  type: 'azure'
-  key: string
-  path: string
-  azure_account_name: string
-  azure_account_key: string
+	type: 'azure'
+	key: string
+	path: string
+	azure_account_name: string
+	azure_account_key: string
 }
 
 type BackendGS = {
-  type: 'gs'
-  key: string
-  path: string
-  google_project_id: string
-  google_application_credentials: string
+	type: 'gs'
+	key: string
+	path: string
+	google_project_id: string
+	google_application_credentials: string
 }
 
 export type Backend =
-  | BackendAzure
-  | BackendB2
-  | BackendGS
-  | BackendLocal
-  | BackendREST
-  | BackendS3
-  | BackendSFTP
+	| BackendAzure
+	| BackendB2
+	| BackendGS
+	| BackendLocal
+	| BackendREST
+	| BackendS3
+	| BackendSFTP
 
 export type Backends = { [name: string]: Backend }
 
+// LOCATIONS
+
 export type Location = {
-  from: string
-  to: string | string[]
+	from: string
+	to: StringOrArray
+	hooks?: {
+		before?: StringOrArray
+		after?: StringOrArray
+	}
+	options?: {
+		[key: string]: {
+			[key: string]: StringOrArray
+		}
+	}
 }
 
 export type Locations = { [name: string]: Location }
 
+// OTHER
+
 export type Config = {
-  locations: Locations
-  backends: Backends
+	locations: Locations
+	backends: Backends
 }
 
 export type Flags = { [arg: string]: any }

src/utils.ts

@@ -1,77 +1,177 @@
-import axios from 'axios'
 import { spawnSync, SpawnSyncOptions } from 'child_process'
 import { randomBytes } from 'crypto'
-import { createWriteStream } from 'fs'
+import { createWriteStream, unlinkSync, renameSync } from 'fs'
+import { dirname, isAbsolute, join, resolve } from 'path'
+import { homedir, tmpdir } from 'os'
+
+import axios from 'axios'
+import { Duration, Humanizer } from 'uhrwerk'
+
+import { CONFIG_FILE } from './config'
+import { Location } from './types'
+
+
 
 export const exec = (
-  command: string,
-  args: string[],
-  { env, ...rest }: SpawnSyncOptions = {}
+	command: string,
+	args: string[],
+	{ env, ...rest }: SpawnSyncOptions = {},
 ) => {
-  const cmd = spawnSync(command, args, {
-    ...rest,
-    env: {
-      ...process.env,
-      ...env,
-    },
-  })
+	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()
+	const out = cmd.stdout && cmd.stdout.toString().trim()
+	const err = cmd.stderr && cmd.stderr.toString().trim()
 
-  return { out, err }
+	return { out, err }
+}
+
+export const execPlain = (command: string, opt: SpawnSyncOptions = {}) => {
+	const split = command.split(' ')
+	if (split.length < 1) {
+		console.log(`The command ${command} is not valid`.red)
+		return
+	}
+
+	return exec(split[0], split.slice(1), opt)
 }
 
 export const checkIfResticIsAvailable = () =>
-  checkIfCommandIsAvailable(
-    'restic',
-    'Restic is not installed'.red +
-      ' https://restic.readthedocs.io/en/latest/020_installation.html#stable-releases'
-  )
+	checkIfCommandIsAvailable(
+		'restic',
+		'restic is not installed'.red +
+		'\nEither run ' + 'autorestic install'.green +
+		'\nOr go to 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 : `"${errorMsg}" is not installed`.red)
+	if (spawnSync(cmd).error)
+		throw new Error(errorMsg ? errorMsg : `"${cmd}" is not installed`.red)
 }
 
 export const makeObjectKeysLowercase = (object: Object): any =>
-  Object.fromEntries(
-    Object.entries(object).map(([key, value]) => [key.toLowerCase(), value])
-  )
+	Object.fromEntries(
+		Object.entries(object).map(([key, value]) => [key.toLowerCase(), value]),
+	)
+
 
 export function rand(length = 32): string {
-  return randomBytes(length / 2).toString('hex')
+	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
+	obj: { [key: string]: T },
+	filter: (item: [string, T]) => boolean,
 ): { [key: string]: T } =>
-  Object.fromEntries(Object.entries(obj).filter(filter))
+	Object.fromEntries(Object.entries(obj).filter(filter))
 
 export const filterObjectByKey = <T>(
-  obj: { [key: string]: T },
-  keys: string[]
+	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',
-    })
+	new Promise<void>(async res => {
+		const { data: file } = await axios({
+			method: 'get',
+			url: url,
+			responseType: 'stream',
+		})
 
-    const stream = createWriteStream(to)
+		const tmp = join(tmpdir(), rand(64))
+		const stream = createWriteStream(tmp)
 
-    const writer = file.pipe(stream)
-    writer.on('close', () => {
-      stream.close()
-      res()
-    })
-  })
+		const writer = file.pipe(stream)
+		writer.on('close', () => {
+			stream.close()
+			try {
+				// Delete file if already exists. Needed if the binary wants to replace itself.
+				// Unix does not allow to overwrite a file that is being executed, but you can remove it and save other one at its place
+				unlinkSync(to)
+			} catch {
+			}
+			renameSync(tmp, to)
+			res()
+		})
+	})
+
+// Check if is an absolute path, otherwise get the path relative to the config file
+export const pathRelativeToConfigFile = (path: string): string => isAbsolute(path)
+	? path
+	: resolve(dirname(CONFIG_FILE), path)
+
+export const resolveTildePath = (path: string): string | null =>
+	(path.length === 0 || path[0] !== '~')
+		? null
+		: join(homedir(), path.slice(1))
 
 export const ConfigError = new Error('Config file not found')
+
+export const getFlagsFromLocation = (location: Location, command?: string): string[] => {
+	if (!location.options) return []
+
+	const all = {
+		...location.options.global,
+		...(location.options[command || ''] || {}),
+	}
+
+	let flags: string[] = []
+	// Map the flags to an array for the exec function.
+	for (let [flag, values] of Object.entries(all))
+		for (const value of makeArrayIfIsNot(values)) {
+			const stringValue = String(value)
+			const resolvedTilde = resolveTildePath(stringValue)
+			flags = [...flags, `--${String(flag)}`, resolvedTilde === null ? stringValue : resolvedTilde]
+		}
+
+	return flags
+}
+
+export const makeArrayIfIsNot = <T>(maybeArray: T | T[]): T[] => Array.isArray(maybeArray) ? maybeArray : [maybeArray]
+
+export const fill = (length: number, filler = ' '): string => new Array(length).fill(filler).join('')
+
+export const capitalize = (string: string): string => string.charAt(0).toUpperCase() + string.slice(1)
+
+export const treeToString = (obj: Object, highlight = [] as string[]): string => {
+	let cleaned = JSON.stringify(obj, null, 2)
+		.replace(/[{}"\[\],]/g, '')
+		.replace(/^ {2}/mg, '')
+		.replace(/\n\s*\n/g, '\n')
+		.trim()
+
+	for (const word of highlight)
+		cleaned = cleaned.replace(word, capitalize(word).green)
+
+	return cleaned
+}
+
+
+export class MeasureDuration {
+	private static Humanizer: Humanizer = [
+		[d => d.hours() > 0, d => `${d.hours()}h ${d.minutes()}min`],
+		[d => d.minutes() > 0, d => `${d.minutes()}min ${d.seconds()}s`],
+		[d => d.seconds() > 0, d => `${d.seconds()}s`],
+		[() => true, d => `${d.milliseconds()}ms`],
+	]
+
+	private start = Date.now()
+
+
+	finished(human?: false): number
+	finished(human?: true): string
+	finished(human?: boolean): number | string {
+		const delta = Date.now() - this.start
+
+		return human
+			? new Duration(delta, 'ms').humanize(MeasureDuration.Humanizer)
+			: delta
+	}
+
+}