SysBackup/index.js

570 lines
18 KiB
JavaScript

/* eslint-disable max-len */
const prompts = require('prompts');
const path = require('path');
const fs = require('fs');
const glob = require('tiny-glob');
const logger = require('./logger');
const ora = require('ora');
const BackupArchive = require('./archiver');
const mysqldump = require('mysqldump');
const CURRENT_FOLDER = __dirname.startsWith('/snapshot') ?
path.dirname(process.env._) :
__dirname;
const TASKS_DIRECTORY = path.join(CURRENT_FOLDER, 'tasks');
const BACKUPS_DIRECTORY = path.join(CURRENT_FOLDER, 'backups');
const TEMP_DIR = path.join(CURRENT_FOLDER, '.temp');
const run = async (programArgs) => {
const ACTION = programArgs.action.toLowerCase();
switch (ACTION) {
case 'exit':
logger.info('exiting...');
break;
case 'createcrontab':
{
logger.info('not added yet.');
}
break;
case 'backup': {
let taskName = programArgs.filename ? programArgs.filename + '.json' : '';
const AUTO_COMPLETE_ARRAY = [];
const FILES = await glob(path.join('*.json'), {
filesOnly: true,
cwd: TASKS_DIRECTORY,
});
for (const FILE of FILES) {
AUTO_COMPLETE_ARRAY.push({
title: FILE,
value: FILE,
});
}
if (taskName === undefined || taskName === '') {
const PROMPT = await prompts({
type: 'autocomplete',
name: 'filename',
message: 'Select a Task file to use',
choices: AUTO_COMPLETE_ARRAY,
validate: (value) =>
FILES.includes(value + '.json') ?
true :
'Task file does not exist, please specify a valid task file.',
});
taskName = PROMPT.filename;
}
if (taskName === undefined) {
return;
}
if (!fs.existsSync(path.join(TASKS_DIRECTORY, taskName))) {
logger.error('task file does not exist');
process.exit(1);
}
const TASK_FILE_CONTENTS = JSON.parse(
fs.readFileSync(path.join(TASKS_DIRECTORY, taskName), 'utf8'),
);
const VALID_TASK_FILE = validate(TASK_FILE_CONTENTS);
if (VALID_TASK_FILE.length > 0) {
logger.error(
'task file is not valid, ' + VALID_TASK_FILE.length + ' errors found',
);
logger.info(
'check with \'' +
process.argv0 +
' checkTaskConf ' +
path.parse(taskName).name +
'\'',
);
process.exit(1);
}
logger.success('task file is valid');
const TIMER = new (require('./timer'))().startTimer();
const SPINNER = ora('preparing backup... please wait.').start();
const FILE_PATHS = [];
const fsExtra = require('fs-extra');
await Promise.all(TASK_FILE_CONTENTS.filesystem.targets.map(async (file) => {
if (fs.existsSync(file)) {
const newPath = path.join(TEMP_DIR, path.parse(file).name);
FILE_PATHS.push(newPath);
await fsExtra.copySync(file, newPath);
}
}));
if (
!fs.existsSync(path.join(BACKUPS_DIRECTORY, path.parse(taskName).name))
) {
await fs.promises.mkdir(
path.join(BACKUPS_DIRECTORY, path.parse(taskName).name),
);
} else {
if (TASK_FILE_CONTENTS.vacuum.enabled) {
SPINNER.text = 'cleaning up old backups...';
const ALL_FILES = fs.readdirSync(
path.join(BACKUPS_DIRECTORY, path.parse(taskName).name),
);
const CURRENT_DATE = Date.now();
for (const FILE of ALL_FILES) {
const FILE_DATE = new Date(
fs.statSync(
path.join(BACKUPS_DIRECTORY, path.parse(taskName).name, FILE),
).birthtime,
).getTime();
let timeAdd = 0;
switch (TASK_FILE_CONTENTS.vacuum.unit) {
case 'DAYS':
timeAdd = TASK_FILE_CONTENTS.vacuum.time * 24 * 60 * 60 * 1000;
break;
case 'HOURS':
timeAdd = TASK_FILE_CONTENTS.vacuum.time * 60 * 60 * 1000;
break;
case 'MINUTES':
timeAdd = TASK_FILE_CONTENTS.vacuum.time * 60 * 1000;
break;
}
const DELETE_DATE = new Date(FILE_DATE + timeAdd);
if (DELETE_DATE.getTime() < CURRENT_DATE) {
await fs.unlinkSync(
path.join(BACKUPS_DIRECTORY, path.parse(taskName).name, FILE),
);
}
}
}
}
const UNREPLACED_FILENAME = TASK_FILE_CONTENTS.general.outputFile;
const REPLACED_FILENAME = UNREPLACED_FILENAME.replace(
'{date}',
require('moment')().format(TASK_FILE_CONTENTS.general.dateFormat),
).replace('{taskName}', path.parse(taskName).name);
const DB_FILE = path.join(
TEMP_DIR,
require('crypto').randomBytes(16).toString('hex') + '.sql',
);
const ARCHIVE = new BackupArchive(
path.join(
BACKUPS_DIRECTORY,
path.parse(taskName).name,
REPLACED_FILENAME + '.tar.gz',
),
FILE_PATHS,
TASK_FILE_CONTENTS.general.gzip,
TASK_FILE_CONTENTS.general.gzipLevel,
);
ARCHIVE.eventEmitter.on('progress', (progressInfo) => {
const TOTAL = ARCHIVE.totalFiles;
const PROCESSED = progressInfo.entries.processed;
const PERCENTAGE = Math.round((PROCESSED / TOTAL) * 100);
SPINNER.text = `Compressing files... ${PROCESSED}/${TOTAL}(${PERCENTAGE}%)`;
});
ARCHIVE.eventEmitter.on('finish', async () => {
SPINNER.text = 'Cleaning up temporary files...';
if (fs.existsSync(DB_FILE)) {
await fs.unlinkSync(DB_FILE);
}
for (const FILE of FILE_PATHS) {
await fsExtra.removeSync(FILE);
}
SPINNER.succeed('backup complete, took ' + TIMER.endTimer());
});
if (TASK_FILE_CONTENTS.mysql.enabled) {
SPINNER.text = `Dumping Database "${TASK_FILE_CONTENTS.mysql.database}"...`;
try {
await mysqldump({
connection: {
host: TASK_FILE_CONTENTS.mysql.host,
port: TASK_FILE_CONTENTS.mysql.port,
user: TASK_FILE_CONTENTS.mysql.user,
password: TASK_FILE_CONTENTS.mysql.password,
database: TASK_FILE_CONTENTS.mysql.database,
},
dumpToFile: DB_FILE,
});
} catch (err) {
logger.error(err);
await fs.unlinkSync(DB_FILE);
}
}
SPINNER.text = 'Adding Files...';
await ARCHIVE.start();
if (TASK_FILE_CONTENTS.mysql.enabled) {
if (fs.existsSync(DB_FILE)) {
SPINNER.text = 'Adding Database...';
await ARCHIVE.add(DB_FILE);
}
}
ARCHIVE.pack();
break;
}
case 'checktaskconf': {
let taskName = programArgs.filename ? programArgs.filename + '.json' : '';
const AUTO_COMPLETE_ARRAY = [];
const FILES = await glob(path.join('*.json'), {
filesOnly: true,
cwd: TASKS_DIRECTORY,
});
for (const FILE of FILES) {
AUTO_COMPLETE_ARRAY.push({
title: FILE,
value: FILE,
});
}
if (taskName === undefined || taskName === '') {
const PROMPT = await prompts({
type: 'autocomplete',
name: 'filename',
message: 'Select a Task file to check',
choices: AUTO_COMPLETE_ARRAY,
validate: (value) =>
FILES.includes(value + '.json') ?
true :
'Task file does not exist, please specify a valid task file.',
});
taskName = PROMPT.filename;
}
if (taskName === undefined) {
return;
}
const TASK_FILE = path.join(TASKS_DIRECTORY, taskName);
if (!fs.existsSync(TASK_FILE)) {
logger.error('Task file does not exist');
return;
}
const TASK_FILE_CONTENTS = await fs.readFileSync(TASK_FILE, 'utf8');
const TASK_FILE_TO_CHECK = JSON.parse(TASK_FILE_CONTENTS);
const VALIDATION_ERRORS = validate(TASK_FILE_TO_CHECK);
if (VALIDATION_ERRORS.length > 0) {
logger.error(
'task file is not valid, ' +
VALIDATION_ERRORS.length +
' errors found',
);
for (const ERROR of VALIDATION_ERRORS) logger.error(ERROR);
} else {
logger.success('Task file is valid!');
}
break;
}
case 'generatetaskconf': {
let taskName = programArgs.filename ? programArgs.filename : '';
if (taskName === undefined || taskName === '') {
const PROMPT = await prompts({
type: 'text',
name: 'filename',
message: 'Define a name for the new task file',
validate: (value) =>
value.length <= 0 || value == '' ?
'Please specify a valid file name' :
true,
});
taskName = PROMPT.filename;
const TASK_FILE_PATH = path.join(TASKS_DIRECTORY, taskName + '.json');
if (await fs.existsSync(TASK_FILE_PATH)) {
const PROMPT_2 = await prompts({
type: 'toggle',
name: 'overwrite',
message:
'A task file with the same name already exists. Do you want to overwrite it?',
active: 'yes',
inactive: 'no',
initial: false,
});
if (!PROMPT_2.overwrite) {
logger.info('exiting...');
return;
}
}
}
if (taskName === undefined) {
return;
}
const TASK_FILE_PATH = path.join(TASKS_DIRECTORY, taskName + '.json');
const TASK_CONFIG = {
general: {
dateFormat: 'yyyy-MM-DD HH-mm-ss',
outputFile: '{date} - {taskName}',
gzip: true,
gzipLevel: 6,
},
vacuum: {
enabled: true,
unit: 'DAYS',
time: 7,
},
mysql: {
enabled: true,
host: 'localhost',
port: 3306,
user: '',
password: '',
database: '',
},
filesystem: {
enabled: true,
targets: ['/home/magento/', '/home/test/testfile.txt'],
},
};
try {
const SAVE_FILE = fs.createWriteStream(TASK_FILE_PATH);
SAVE_FILE.write(JSON.stringify(TASK_CONFIG, null, 4));
SAVE_FILE.end();
logger.success(
'Task file "' + path.basename(TASK_FILE_PATH) + '" saved successfully',
);
} catch (err) {
logger.error(err);
}
break;
}
default:
logger.warn('Unknown action.');
cli(true);
return;
}
};
const validate = (taskConfig) => {
const ERRORS = [];
if (taskConfig.general && typeof taskConfig.general === 'object') {
if (
taskConfig.general.dateFormat &&
typeof taskConfig.general.dateFormat === 'string'
) {
const DATE_FORMAT = taskConfig.general.dateFormat;
const DATE_FORMAT_REGEX =
/d{1,4}|D{3,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|W{1,2}|[LlopSZN]|"[^"]*"|'[^']*'/g;
if (!DATE_FORMAT_REGEX.test(DATE_FORMAT)) {
ERRORS.push('general.dateFormat is not a valid date format');
}
} else {
ERRORS.push('general.dateFormat is not defined or is not a string');
}
if (
taskConfig.general.outputFile &&
typeof taskConfig.general.outputFile === 'string'
) {
const OUTPUT_FILE = taskConfig.general.outputFile;
const OUTPUT_FILE_REGEX = /^([^.]+)$/g;
if (!OUTPUT_FILE_REGEX.test(OUTPUT_FILE)) {
ERRORS.push(
'general.outputFile is not a valid output file name, maybe you added a file extension?',
);
}
} else {
ERRORS.push('general.outputFile is not defined or is not a string');
}
if (typeof taskConfig.general.gzip === 'boolean') {
if (taskConfig.general.gzip) {
if (
!taskConfig.general.gzipLevel &&
typeof taskConfig.general.gzipLevel !== 'number'
) {
ERRORS.push('general.gzipLevel is not defined or is not a number');
}
}
} else {
ERRORS.push('general.gzip is not defined or is not a boolean');
ERRORS.push('general.gzipLevel is not defined or is not a number');
}
} else {
ERRORS.push('general section is missing or not an object');
ERRORS.push('general.dateFormat is not defined or is not a string');
ERRORS.push('general.outputFile is not defined or is not a string');
}
if (taskConfig.vacuum && typeof taskConfig.vacuum === 'object') {
if (typeof taskConfig.vacuum.enabled !== 'boolean') {
ERRORS.push('vacuum.enabled is not defined or is not a boolean');
} else if (taskConfig.vacuum.enabled) {
if (
taskConfig.vacuum.unit &&
typeof taskConfig.vacuum.unit === 'string'
) {
const UNIT = taskConfig.vacuum.unit;
const UNIT_REGEX = /^(DAYS|HOURS|MINUTES)$/g;
if (!UNIT_REGEX.test(UNIT)) {
ERRORS.push(
'vacuum.unit is not a valid unit, please use DAYS, HOURS or MINUTES',
);
}
} else {
ERRORS.push('vacuum.unit is not defined or is not a string');
}
if (
taskConfig.vacuum.time &&
typeof taskConfig.vacuum.time === 'number'
) {
const TIME = taskConfig.vacuum.time;
if (TIME < 1) {
ERRORS.push(
'vacuum.time is not a valid time, please use a number greater than 0',
);
}
} else {
ERRORS.push('vacuum.time is not defined or is not a number');
}
}
} else {
ERRORS.push('vacuum section is missing or not an object');
ERRORS.push('vacuum.enabled is not defined or is not a boolean');
ERRORS.push('vacuum.unit is not defined or is not a string');
ERRORS.push('vacuum.time is not defined or is not a number');
}
if (taskConfig.mysql && typeof taskConfig.mysql === 'object') {
if (typeof taskConfig.mysql.enabled !== 'boolean') {
ERRORS.push('mysql.enabled is not defined or is not a boolean');
} else if (taskConfig.mysql.enabled) {
if (!taskConfig.mysql.host || typeof taskConfig.mysql.host !== 'string') {
ERRORS.push('mysql.host is not defined or is not a string');
}
if (!taskConfig.mysql.port || typeof taskConfig.mysql.port !== 'number') {
ERRORS.push('mysql.port is not defined or is not a number');
}
if (!taskConfig.mysql.user || typeof taskConfig.mysql.user !== 'string') {
ERRORS.push('mysql.user is not defined or is not a string');
}
if (typeof taskConfig.mysql.password !== 'string') {
ERRORS.push('mysql.password is not defined or is not a string');
}
if (
!taskConfig.mysql.database ||
typeof taskConfig.mysql.database !== 'string'
) {
ERRORS.push('mysql.database is not defined or is not a string');
}
}
} else {
ERRORS.push('mysql section is missing or not an object');
ERRORS.push('mysql.host is not defined or is not a string');
ERRORS.push('mysql.port is not defined or is not a number');
ERRORS.push('mysql.user is not defined or is not a string');
ERRORS.push('mysql.password is not defined or is not a string');
ERRORS.push('mysql.database is not defined or is not a string');
}
if (taskConfig.filesystem && typeof taskConfig.filesystem === 'object') {
if (typeof taskConfig.filesystem.enabled !== 'boolean') {
ERRORS.push('filesystem.enabled is not defined or is not a boolean');
} else if (taskConfig.filesystem.enabled) {
if (
taskConfig.filesystem.targets &&
typeof taskConfig.filesystem.targets === 'object'
) {
const TARGETS = taskConfig.filesystem.targets;
if (TARGETS.length < 1) {
ERRORS.push('filesystem.targets is not defined or is not an array');
} else {
for (const target of TARGETS) {
if (!target || typeof target !== 'string') {
ERRORS.push(
'filesystem.targets[] is not defined or is not a valid path',
);
}
}
}
} else {
ERRORS.push('filesystem.targets is not defined or is not an array');
}
}
} else {
ERRORS.push('filesystem section is missing or not an object');
ERRORS.push('filesystem.enabled is not defined or is not a boolean');
ERRORS.push('filesystem.targets is not defined or is not an array');
}
return ERRORS;
};
const cli = async (forcePrompt) => {
const FIRST_RUN = !fs.existsSync(TASKS_DIRECTORY);
try {
if (!fs.existsSync(TASKS_DIRECTORY)) {
logger.info('tasks directory does not exist, creating it...');
await fs.mkdirSync(TASKS_DIRECTORY);
}
if (!fs.existsSync(BACKUPS_DIRECTORY)) {
logger.info('backups directory does not exist, creating it...');
await fs.mkdirSync(BACKUPS_DIRECTORY);
}
if (!fs.existsSync(TEMP_DIR)) {
await fs.mkdirSync(TEMP_DIR);
}
} catch (err) {
logger.error(err);
}
if (FIRST_RUN) {
const PROMPT = await prompts({
type: 'toggle',
name: 'createTask',
message:
'This is the first time you run this script, do you want to create a new task?',
active: 'yes',
inactive: 'no',
initial: false,
});
if (PROMPT.createTask) {
run({action: 'generateTaskConf'});
} else cli(true);
} else {
const ARGS = process.argv.slice(2);
let action = ARGS[0];
const fileName = ARGS[1];
if (action === undefined || forcePrompt) {
const PROMPT = await prompts({
type: 'select',
name: 'action',
message: 'What would you like to do?',
choices: [
{title: 'Create a new task file', value: 'generateTaskConf'},
{title: 'Check a task file', value: 'checkTaskConf'},
{title: 'Perform a Backup', value: 'backup'},
{title: 'Create a Crontab for a task file', value: 'createCrontab'},
{title: 'Exit', value: 'exit'},
],
});
action = PROMPT.action;
}
const programArgs = {
action,
filename: fileName,
};
run(programArgs);
}
};
cli(false);