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index.js
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index.js
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const os = require(`os`)
const fs = require(`fs`)
const cp = require(`child_process`)
const { homedir } = os.userInfo()
const platform = os.platform()
const root = platform === `win32` ? homedir.match(/(.+:)/)[0] : `/`
async function getSafeDate() {
const date = [
tryFn(() => +fs.readFileSync(`${os.tmpdir()}/.d`), 0),
await netDate(),
await dirDate(),
+new Date(),
].sort((a, b) => (b - a))[0]
fs.writeFileSync(`${os.tmpdir()}/.d`, `${date}`)
return date
}
function dirDate() {
const baseLinux = [
() => [[`home 目录`, homedir]],
() => [[`根目录`, `/`]],
() => [[`缓存`, `${homedir}/.cache/`]],
() => [[`本地`, `${homedir}/.local/`]],
() => [[`临时`, os.tmpdir()]],
() => [[`日志`, `/var/log/`]],
() => [[`进程`, `/proc`]],
() => [[`设备`, `/dev/`]],
() => [[`配置`, `${homedir}/.config/`]],
]
const platformMap = {
darwin: [
...baseLinux,
() => [[`程序数据`, `${homedir}/Library/Application Support/`]],
],
linux: [
...baseLinux,
],
win32: [
() => cp.execSync(`wmic logicaldisk get caption`).toString().trim().split(`\n`).slice(1).map(item => item.trim()).map(item => [`根目录`, `${item}/`]),
() => [[`home 目录`, homedir]],
() => [[`临时`, os.tmpdir()]],
() => [[`程序数据`, process.env.LOCALAPPDATA]],
() => [[`x64 程序`, `${root}/Program Files/`]],
() => [[`x32 程序`, `${root}/Program Files (x86)/`]],
() => [[`预读`, `${root}/Windows/Prefetch/`]],
],
}
const dirList = platformMap[platform] || platformMap[`linux`]
const list = dirList.map(item => tryFn(item, []))
.flat()
.filter(([name, dir = ``]) => dir.trim())
.map(([name, dir]) => [
`${name} ${dir}`,
tryFn(() => getNewDate(dir), 0)
])
const newDate = list.sort((a, b) => (b[1] - a[1]))[0]
return newDate[1]
}
function tryFn(fn, defaultVal) {
try {
return fn()
} catch (error) {
return defaultVal
}
}
function getNewDate(dir) {
const list = getList({
root: dir,
}).map(item => +(new Date(item.mtime))).sort((a, b) => (b - a))
return list[0]
}
/**
* 获取网络时间
* @returns
*/
async function netDate() {
let netRes
netRes = await new Promise((resolve, reject) => {
const req = require(`http`).request({
host: `httpbin.org`,
method: `head`,
timeout: 1000,
}, res => {
resolve(+new Date(res.headers.date))
}).on(`error`, () => {
resolve(+new Date())
})
req.end()
}).catch(err => {
netRes = +new Date()
})
return netRes
}
/**
* 获取目录下的内容列表
* @param {*} option
* @param {*} option.root 目录地址
* @param {*} option.sort 排序的 key
* @param {*} option.order 排序方式 asc desc
* @returns
*/
function getList(option) {
const list = fs
.readdirSync(option.root)
.map((name) => {
try {
const stat = fs.statSync(`${option.root}/${name}`)
const isFile = stat.isFile()
const isDirectory = stat.isDirectory()
return isFile || isDirectory
? {
name,
// 文件大小
size: stat.size,
// 修改时间
mtime: stat.mtime,
// 创建时间
birthtime: stat.birthtime,
// 是否是文件
isFile,
// stat,
}
: undefined
} catch (error) {
return undefined
}
})
.filter((item) => item)
return list
}
module.exports = {
getSafeDate
}