version bump

Fix #2: support pruning and forget via snapshot policies

.gitignore

@@ -1,8 +1,10 @@
 node_modules/
 package-lock.json
 .idea
+yarn.lock
 
-config.yml
 bin
 lib
 data
+
+.autorestic.yml

.prettierrc

@@ -0,0 +1,3 @@
+semi: false
+singleQuote: true
+trailingComma: 'es5'

README.md

@@ -1,9 +1,193 @@
 # 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 🙂
+
+![Sketch](./docs/Sketch.png)
+
+## 🌈 Features
+
+- Config files, no CLI
+- Predictable
+- Backup locations to multiple backends
+- Snapshot policies and pruning
+- Simple interface
+- Fully encrypted
 
 ## Installation
 
 ```
-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.
+
+Lets see a more realistic example (from the config above)
+
+```
+autorestic check -l important
+```
+
+If we would check only one location we could run the following: `autorestic -l home check`.
+
+### Backup
+
+```
+autorestic backup -a
+```
+
+### Restore
+
+```
+autorestic restore -a --to /path/where/to/restore
+```
+
+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.
+
+```
+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`
+
+
+## 🗂 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
+```
+
+## 💽 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
+```
+
+## 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
+    keep:
+      # options matches the --keep-* options used in the restic forget CLI
+      # cf https://restic.readthedocs.io/en/latest/060_forget.html#removing-snapshots-according-to-a-policy
+      last: 5             # always keep at least 5 snapshots
+      hourly: 3           # keep 3 last hourly shapshots
+      daily: 4            # keep 4 last daily shapshots
+      weekly: 1           # keep 1 last weekly shapshots
+      monthly: 12         # keep 12 last monthly shapshots
+      yearly: 7           # keep 7 last yearly shapshots
+      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
+```
+
+##### 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!
+
+## 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

@@ -4,12 +4,12 @@
 		"build": "tsc",
 		"build:watch": "tsc -w",
 		"dev": "tsnd --no-notify --respawn ./src/autorestic.ts",
-		"bin": "npm run build && pkg lib/autorestic.js --out-path bin"
+		"bin": "npm 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"

src/autorestic.ts

@@ -1,13 +1,12 @@
 import 'colors'
 import minimist from 'minimist'
-import { homedir } from 'os'
-import { resolve } from 'path'
 
 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)
@@ -15,29 +14,32 @@ process.on('uncaughtException', err => {
 
 export const { _: commands, ...flags } = minimist(process.argv.slice(2), {
 	alias: {
-		'c': 'config',
-		'v': 'verbose',
-		'h': 'help',
-		'a': 'all',
-		'l': 'location',
-		'b': 'backend',
+		c: 'config',
+		v: 'version',
+		h: 'help',
+		a: 'all',
+		l: 'location',
+		b: 'backend',
+		d: 'dry-run',
 	},
-	boolean: ['a'],
+	boolean: ['a', 'd'],
 	string: ['l', 'b'],
 })
 
-export const VERSION = '0.1'
-export const DEFAULT_CONFIG = '/.autorestic.yml'
+export const VERSION = '0.7'
 export const INSTALL_DIR = '/usr/local/bin'
-export const CONFIG_FILE: string = resolve(flags.config || homedir() + DEFAULT_CONFIG)
 export const VERBOSE = flags.verbose
 
-export const config: Config = init()
+export const config = init()
+
+
+function main() {
+	if (commands.length < 1) return help()
 
-if (commands.length < 1)
-	help()
-else {
 	const command: string = commands[0]
 	const args: string[] = commands.slice(1)
 	;(handlers[command] || error)(args, flags)
 }
+
+
+main()

src/backend.ts

@@ -1,12 +1,13 @@
 import { Writer } from 'clitastic'
 
 import { config, VERBOSE } from './autorestic'
-import { Backend, Backends } from './types'
-import { exec } from './utils'
+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':
@@ -24,7 +25,6 @@ export const getPathFromBackend = (backend: Backend): string => {
 	}
 }
 
-
 export const getEnvFromBackend = (backend: Backend) => {
 	const { type, path, key, ...rest } = backend
 	return {
@@ -34,6 +34,12 @@ export const getEnvFromBackend = (backend: Backend) => {
 	}
 }
 
+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... ⏳')
@@ -49,8 +55,12 @@ 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

@@ -3,35 +3,46 @@ 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, pathRelativeToConfigFile, getFlagsFromLocation } from './utils'
 
 
-export const backupSingle = (name: string, from: string, to: string) => {
+
+export const backupSingle = (name: string, to: string, location: Location) => {
+	if (!config) throw ConfigError
 	const writer = new Writer(name + to.blue + ' : ' + 'Backing up... ⏳')
 	const backend = config.backends[to]
-	const cmd = exec('restic', ['backup', from], { env: getEnvFromBackend(backend) })
+
+	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)
 }
 
-
-export const backupLocation = (name: string, backup: Location) => {
+export const backupLocation = (name: string, location: Location) => {
 	const display = name.yellow + ' ▶ '
-	if (Array.isArray(backup.to)) {
+	const filler = new Array(name.length + 3).fill(' ').join('')
+	if (Array.isArray(location.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)
+		for (const t of location.to) {
+			backupSingle(first ? display : filler, t, location)
 			if (first) first = false
 		}
-	} else
-		backupSingle(display, backup.from, backup.to)
+	} else backupSingle(display, location.from, location)
 }
 
+export const backupAll = (locations?: Locations) => {
+	if (!locations) {
+		if (!config) throw ConfigError
+		locations = config.locations
+	}
 
-export const backupAll = (backups: Locations = config.locations) => {
 	console.log('\nBacking Up'.underline.grey)
-	for (const [name, backup] of Object.entries(backups))
-		backupLocation(name, backup)
+	for (const [name, location] of Object.entries(locations))
+		backupLocation(name, location)
 }

src/config.ts

@@ -1,16 +1,23 @@
-import { readFileSync, writeFileSync } from 'fs'
+import { readFileSync, writeFileSync, statSync } from 'fs'
+import { resolve } from 'path'
 import yaml from 'js-yaml'
-import { CONFIG_FILE } from './autorestic'
+import { flags } from './autorestic'
 import { Backend, Config } from './types'
 import { makeObjectKeysLowercase, rand } from './utils'
+import { homedir } from 'os'
+
 
 
 export const normalizeAndCheckBackends = (config: Config) => {
 	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,
@@ -24,7 +31,6 @@ export const normalizeAndCheckBackends = (config: Config) => {
 	}
 }
 
-
 export const normalizeAndCheckBackups = (config: Config) => {
 	config.locations = makeObjectKeysLowercase(config.locations)
 	const backends = Object.keys(config.backends)
@@ -34,20 +40,45 @@ export const normalizeAndCheckBackups = (config: Config) => {
 			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)
+		if (Array.isArray(to)) for (const t of to) checkDestination(t, name)
+		else checkDestination(to, name)
 	}
 }
 
+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 const init = (): Config => {
-	const raw: Config = makeObjectKeysLowercase(yaml.safeLoad(readFileSync(CONFIG_FILE).toString()))
+export let CONFIG_FILE: string = ''
+
+export const init = (): Config | undefined => {
+	const file = findConfigFile()
+	if (file) CONFIG_FILE = file
+	else return
+
+	const raw: Config = makeObjectKeysLowercase(
+		yaml.safeLoad(readFileSync(CONFIG_FILE).toString()),
+	)
 
 	normalizeAndCheckBackends(raw)
 	normalizeAndCheckBackups(raw)

src/forget.ts

@@ -0,0 +1,62 @@
+import { Writer } from 'clitastic'
+
+import { config, VERBOSE } from './autorestic'
+import { getEnvFromBackend } from './backend'
+import { Locations, Location, ForgetPolicy, Flags } from './types'
+import { exec, ConfigError } from './utils'
+
+
+
+export const forgetSingle = (dryRun: boolean, name: string, from: string, to: string, policy: ForgetPolicy) => {
+	if (!config) throw ConfigError
+	const writer = new Writer(name + to.blue + ' : ' + 'Removing old spnapshots… ⏳')
+	const backend = config.backends[to]
+	const flags = [] as any[]
+	for (const [name, value] of Object.entries(policy)) {
+		flags.push(`--keep-${name}`)
+		flags.push(value)
+	}
+	if (dryRun) {
+		flags.push('--dry-run')
+	}
+	const env = getEnvFromBackend(backend)
+	writer.replaceLn(name + to.blue + ' : ' + 'Forgeting old snapshots… ⏳')
+	const cmd = exec('restic', ['forget', '--path', from, '--prune', ...flags], { env })
+
+	if (VERBOSE) console.log(cmd.out, cmd.err)
+	writer.done(name + to.blue + ' : ' + 'Done ✓'.green)
+}
+
+export const forgetLocation = (dryRun: boolean, name: string, backup: Location, policy?: ForgetPolicy) => {
+	const display = name.yellow + ' ▶ '
+	if (!policy) {
+		console.log(display + 'skipping, no policy declared')
+	} else {
+		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('')
+				forgetSingle(dryRun, nameOrBlankSpaces, backup.from, t, policy)
+				if (first) first = false
+			}
+		} else forgetSingle(dryRun, display, backup.from, backup.to, policy)
+	}
+}
+
+export const forgetAll = (backups?: Locations, flags?: Flags) => {
+	if (!config) throw ConfigError
+	if (!backups) {
+		backups = config.locations
+	}
+
+	console.log('\nRemoving old shapshots 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)) {
+		const policy = config.locations[name].keep
+		forgetLocation(dryRun, name, backup, policy)
+	}
+}

src/handlers.ts

@@ -4,10 +4,11 @@ import { unlinkSync } from 'fs'
 import { tmpdir } from 'os'
 import { join, resolve } from 'path'
 
-import { config, CONFIG_FILE, INSTALL_DIR, VERSION } from './autorestic'
-import { checkAndConfigureBackends, getEnvFromBackend } from './backend'
+import { config, INSTALL_DIR, VERSION } from './autorestic'
+import { checkAndConfigureBackends, getBackendsFromLocations, getEnvFromBackend } from './backend'
 import { backupAll } from './backup'
-import { Backends, Flags, Locations } from './types'
+import { forgetAll } from './forget'
+import { Backend, Backends, Flags, Locations } from './types'
 import {
 	checkIfCommandIsAvailable,
 	checkIfResticIsAvailable,
@@ -15,18 +16,24 @@ import {
 	exec,
 	filterObjectByKey,
 	singleToArray,
+	ConfigError,
 } from './utils'
 
-export type Handlers = { [command: string]: (args: string[], flags: Flags) => void }
+
+
+export type Handlers = {
+	[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',
+		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
+	if (flags.all) return config.backends
 	else {
 		const backends = singleToArray<string>(flags.backend)
 		for (const backend of backends)
@@ -37,10 +44,12 @@ 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
-			+ '\n--all [-a]\t\t\t\tBackup all.'
-			+ '\n--location [-l] site1\t\t\tSpecify one or more locations',
+		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) {
@@ -61,33 +70,64 @@ const handlers: Handlers = {
 		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, Array.from(backends)))
+		checkAndConfigureBackends(
+			filterObjectByKey(config.backends, getBackendsFromLocations(locations)),
+		)
 		backupAll(locations)
 
 		console.log('\nFinished!'.underline + ' 🎉')
 	},
 	restore(args, flags) {
+		if (!config) throw ConfigError
 		checkIfResticIsAvailable()
+
+		if (!flags.to) {
+			console.log(`You need to specify the restore path with --to`.red)
+			return
+		}
+
 		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])
+			const baseText = name.green + '\t\t'
+			const w = new Writer(baseText + `Starting...`)
+
+			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])
 
 			exec(
 				'restic',
-				['restore', 'latest', '--path', resolve(location.from), ...args],
+				['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)
+
+		checkAndConfigureBackends(
+			filterObjectByKey(config.backends, getBackendsFromLocations(locations)),
+		)
+		forgetAll(locations, flags)
+
+		console.log('\nFinished!'.underline + ' 🎉')
+	},
 	exec(args, flags) {
 		checkIfResticIsAvailable()
 		const backends = parseBackend(flags)
@@ -116,14 +156,17 @@ const handlers: Handlers = {
 		})
 
 		const archMap: { [a: string]: string } = {
-			'x32': '386',
-			'x64': 'amd64',
+			x32: '386',
+			x64: 'amd64',
 		}
 
 		w.replaceLn('Downloading binary... 🌎')
-		const name = `${json.name.replace(' ', '_')}_${process.platform}_${archMap[process.arch]}.bz2`
+		const name = `${json.name.replace(' ', '_')}_${process.platform}_${
+			archMap[process.arch]
+		}.bz2`
 		const dl = json.assets.find((asset: any) => asset.name === name)
-		if (!dl) return console.log(
+		if (!dl)
+			return console.log(
 				'Cannot get the right binary.'.red,
 				'Please see https://bit.ly/2Y1Rzai',
 			)
@@ -133,8 +176,6 @@ const handlers: Handlers = {
 
 		await downloadFile(dl.browser_download_url, tmp)
 
-		// TODO: Native bz2
-		// Decompress
 		w.replaceLn('Decompressing binary... 📦')
 		exec('bzip2', ['-dk', tmp])
 		unlinkSync(tmp)
@@ -143,7 +184,9 @@ const handlers: Handlers = {
 		exec('chmod', ['+x', extracted])
 		exec('mv', [extracted, INSTALL_DIR + '/restic'])
 
-		w.done(`\nFinished! restic is installed under: ${INSTALL_DIR}`.underline + ' 🎉')
+		w.done(
+			`\nFinished! restic is installed under: ${INSTALL_DIR}`.underline + ' 🎉',
+		)
 	},
 	uninstall() {
 		for (const bin of ['restic', 'autorestic'])
@@ -159,20 +202,21 @@ const handlers: Handlers = {
 		const w = new Writer('Checking for latest restic version... ⏳')
 		exec('restic', ['self-update'])
 
-
 		w.replaceLn('Checking for latest autorestic version... ⏳')
 		const { data: json } = await axios({
 			method: 'get',
-			url: 'https://api.github.com/repos/cupcakearmy/autorestic/releases/latest',
+			url:
+				'https://api.github.com/repos/cupcakearmy/autorestic/releases/latest',
 			responseType: 'json',
 		})
 
 		if (json.tag_name != VERSION) {
 			const platformMap: { [key: string]: string } = {
-				'darwin': 'macos',
+				darwin: 'macos',
 			}
 
-			const name = `autorestic_${platformMap[process.platform] || process.platform}_${process.arch}`
+			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'
@@ -184,33 +228,44 @@ const handlers: Handlers = {
 
 		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: ${CONFIG_FILE}`
-		+ '\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>]                     Check backends'
-		+ '\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 +
+		` - ${VERSION} - Easy Restic CLI Utility` +
+		'\n' +
+		'\nOptions:'.yellow +
+		`\n  -c, --config                                                          Specify config file. Default: .autorestic.yml` +
+		'\n' +
+		'\nCommands:'.yellow +
+		'\n  check    [-b, --backend]  [-a, --all]                                 Check backends' +
+		'\n  backup   [-l, --location] [-a, --all]                                 Backup all or specified locations' +
+		'\n  forget   [-l, --location] [-a, --all] [--dry-run]                     Forget old snapshots according to declared policies' +
+		'\n  restore  [-l, --location] [--from backend] [--to <out dir>]           Restore all or specified locations' +
+		'\n' +
+		'\n  exec     [-b, --backend]  [-a, --all] <command> -- [native options]   Execute native restic command' +
+		'\n' +
+		'\n  install                                                               install restic' +
+		'\n  uninstall                                                             uninstall restic' +
+		'\n  update                                                                update restic' +
+		'\n  help                                                                  Show help' +
+		'\n' +
+		'\nExamples: '.yellow +
+		'https://git.io/fjVbg' +
+		'\n',
 	)
 }
+
 export const error = () => {
 	help()
-	console.log(`Invalid Command:`.red.underline, `${process.argv.slice(2).join(' ')}`)
+	console.log(
+		`Invalid Command:`.red.underline,
+		`${process.argv.slice(2).join(' ')}`,
+	)
 }
 
 export default handlers

src/types.ts

@@ -1,63 +1,87 @@
 type BackendLocal = {
-	type: 'local',
-	key: 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,
+	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,
+	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,
+	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,
+	type: 'gs'
+	key: string
+	path: 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 ForgetPolicy = {
+	last?: number,
+	hourly?: number,
+	daily?: number,
+	weekly?: number,
+	monthly?: number,
+	yearly?: number,
+	within?: string,
+	tags?: string[],
+}
+
 export type Location = {
-	from: string,
+	from: string
 	to: string | string[]
+	keep?: ForgetPolicy
+	options?: {
+		[key: string]: {
+			[key: string]: string | string[]
+		}
+	}
 }
 
 export type Locations = { [name: string]: Location }

src/utils.ts

@@ -2,9 +2,17 @@ import axios from 'axios'
 import { spawnSync, SpawnSyncOptions } from 'child_process'
 import { randomBytes } from 'crypto'
 import { createWriteStream } from 'fs'
+import { isAbsolute, resolve, dirname } from 'path'
+import { CONFIG_FILE } from './config'
+import { Location } from './types'
 
-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 +27,12 @@ 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)
@@ -31,8 +41,7 @@ export const checkIfCommandIsAvailable = (cmd: string, errorMsg?: string) => {
 
 export const makeObjectKeysLowercase = (object: Object): any =>
 	Object.fromEntries(
-		Object.entries(object)
-			.map(([key, value]) => [key.toLowerCase(), value]),
+		Object.entries(object).map(([key, value]) => [key.toLowerCase(), value]),
 	)
 
 
@@ -40,13 +49,23 @@ 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 singleToArray = <T>(singleOrArray: T | T[]): T[] =>
+	Array.isArray(singleOrArray) ? singleOrArray : [singleOrArray]
 
-export const filterObjectByKey = <T>(obj: { [key: string]: T }, keys: string[]) => filterObject(obj, ([key]) => keys.includes(key))
+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 downloadFile = async (url: string, to: string) => new Promise<void>(async res => {
+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,
@@ -60,4 +79,31 @@ export const downloadFile = async (url: string, to: string) => new Promise<void>
 			stream.close()
 			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 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)) {
+		if (!Array.isArray(values))
+			values = [values]
+
+		for (const value of values)
+			flags = [...flags, `--${flag}`, value]
+	}
+	return flags
+}