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const fs = require('fs')
const ini = require('ini')
const {isNumeric} = require('./util')
let config = {}
function readFile(file) {
if (!fs.existsSync(file))
throw new Error(`file ${file} not found`)
return ini.parse(fs.readFileSync(file, 'utf-8'))
}
function processScheme(source, scheme) {
const result = {}
for (let key in scheme) {
let opts = scheme[key]
let ne = !(key in source) || !source[key]
if (opts.required === true && ne)
throw new Error(`'${key}' is not defined`)
let value = source[key] ?? opts.default ?? null
if (value !== null) {
switch (opts.type) {
case 'int':
if (!isNumeric(value))
throw new Error(`'${key}' must be an integer`)
value = parseInt(value, 10)
break
case 'float':
if (!isNumeric(value))
throw new Error(`'${key}' must be a float`)
value = parseFloat(value)
break
case 'object':
if (typeof value !== 'object')
throw new Error(`'${key}' must be an object`)
break
case 'boolean':
if (typeof value === 'string') {
value = value.trim()
value = ['true', '1'].includes(value)
} else {
value = !!value
}
break
}
}
result[key] = value
}
return result
}
function parseWorkerConfig(file) {
config = {}
const raw = readFile(file)
const scheme = {
host: {required: true},
port: {required: true, type: 'int'},
password: {},
always_allow_localhost: {type: 'boolean', default: false},
master_host: {},
master_port: {type: 'int', default: 0},
master_reconnect_timeout: {type: 'int', default: 10},
log_file: {},
log_level_file: {default: 'warn'},
log_level_console: {default: 'warn'},
mysql_host: {required: true},
mysql_port: {required: true, type: 'int'},
mysql_user: {required: true},
mysql_password: {required: true},
mysql_database: {required: true},
mysql_table: {required: true, default: 'jobs'},
mysql_fetch_limit: {default: 100, type: 'int'},
launcher: {required: true},
max_output_buffer: {default: 1024*1024, type: 'int'},
targets: {required: true, type: 'object'},
}
Object.assign(config, processScheme(raw, scheme))
config.targets = {}
for (let target in raw.targets) {
if (target === 'null')
throw new Error('word \'null\' is reserved, please don\'t use it as a target name')
if (!isNumeric(raw.targets[target]))
throw new Error(`value of target '${target}' must be a number`)
let value = parseInt(raw.targets[target], 10)
if (value < 1)
throw new Error(`target '${target}' has invalid value`)
config.targets[target] = value
}
}
function parseMasterConfig(file) {
config = {}
const raw = readFile(file)
const scheme = {
host: {required: true},
port: {required: true, type: 'int'},
password: {},
always_allow_localhost: {type: 'boolean', default: false},
ping_interval: {default: 30, type: 'int'},
poke_throttle_interval: {default: 0.5, type: 'float'},
log_file: {},
log_level_file: {default: 'warn'},
log_level_console: {default: 'warn'},
}
Object.assign(config, processScheme(raw, scheme))
}
/**
* @param {string} file
*/
function parseJobctlConfig(file) {
config = {}
const raw = readFile(file)
Object.assign(config, processScheme(raw, {
master: {type: 'boolean'},
password: {},
log_level: {default: 'warn'},
}))
// if (inputOptions.master)
// config.master = inputOptions.master
Object.assign(config, processScheme(raw, {
host: {default: '127.0.0.1'},
port: {/*default: config.master ? 7081 : 7080,*/ type: 'int'}
}))
// for (let key of ['log_level', 'host', 'port']) {
// if (inputOptions[key])
// config[key] = inputOptions[key]
// }
// console.log('parseJobctlConfig [2]', config)
}
/**
* @param {string|null} key
* @return {string|number|object}
*/
function get(key = null) {
if (key === null)
return config
return config[key] || null
}
/**
* @param {object|string} key
* @param value
*/
function set(key, value) {
if (!config)
config = {}
if (typeof key === 'object') {
Object.assign(config, key)
} else {
config[key] = value
}
}
module.exports = {
parseWorkerConfig,
parseMasterConfig,
parseJobctlConfig,
get,
set,
}
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