完成日志模块

.gitignore

@@ -0,0 +1,12 @@
+
+.Spotlight-V100
+.Trashes
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+.idea
+.vscode
+
+
+node_modules/

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Readme.md

@@ -0,0 +1,35 @@
+![module info](https://nodei.co/npm/@gm5/logs.png?downloads=true&downloadRank=true&stars=true)
+
+# @gm5/logs
+
+> 日志存储拓展。
+
+## 安装
+
+```bash
+npm install @gm5/logs
+```
+
+## 使用
+
+```js
+import Logs from '@gm5/logs'
+
+// 安装时传入日志目录
+app.install(Logs, './data/logs')
+
+
+app.$$logs.info('hello world')
+
+```
+
+
+## API
+
+安装之后, 有3个对外的方法, 对应3个等级的日志, 即
+
++ .info(msg`<String>`)
++ .warn(msg`<String>`)
++ .error(msg`<String>`)
+
+

index.js

@@ -0,0 +1,53 @@
+/**
+ * 日志记录
+ * @author yutent<yutent.io@gmail.com>
+ * @date 2020/10/06 20:20:30
+ */
+
+import { fork } from 'child_process'
+import url from 'url'
+import path from 'path'
+
+var __dirname = path.dirname(url.fileURLToPath(import.meta.url))
+var child = fork(path.join(__dirname, 'logs.js'))
+
+export default {
+  name: 'logs',
+  install(dir) {
+    // 在初始化之前写入的日志, 会失败, 所以要先扔进临时队列中
+    // 初始化之后再写入
+    var queue = []
+    var ready = false
+
+    child.on('message', _ => {
+      child.send({ type: 'init', dir })
+      ready = true
+      post()
+    })
+
+    // 发送日志
+    function post(item) {
+      if (item) {
+        queue.push(item)
+      }
+
+      if (ready) {
+        while (queue.length) {
+          child.send(queue.shift())
+        }
+      }
+    }
+
+    return {
+      info(msg) {
+        post({ type: 'info', msg })
+      },
+      warn(msg) {
+        post({ type: 'warn', msg })
+      },
+      error(msg) {
+        post({ type: 'error', msg })
+      }
+    }
+  }
+}

logs.js

@@ -0,0 +1,69 @@
+import fs from 'fs'
+import path from 'path'
+
+import Queue from './queue.js'
+
+var list = new Queue()
+var file
+var currSize = 0
+var ws
+var ready = false
+
+list.on('data', _ => {
+  while (list.size) {
+    ws.write(list.shift())
+  }
+})
+
+process.on('message', _ => {
+  //
+  switch (_.type) {
+    case 'init':
+      file = path.resolve(_.dir, 'app_debug.log')
+      ws = fs.createWriteStream(file, { flags: 'a' })
+      ws.once('ready', _ => {
+        ready = true
+        list.emit('data')
+        currSize = fs.statSync(file).size
+      })
+      break
+    default:
+      var now = new Date().toISOString()
+      var data = `[${_.type}] ${now} ${_.msg}\n`
+      var len = Buffer.byteLength(data)
+      var id = 1
+
+      list.append(data)
+
+      if (ready) {
+        // 日志文件大于512MB, 自动分割文件
+        if (currSize + len > 1024 * 1024 * 512) {
+          ready = false
+          ws.close()
+
+          try {
+            // fs.constants.F_OK
+            while (fs.accessSync(`${file}.${id}`, 0) === undefined) {
+              id++
+            }
+          } catch (e) {}
+
+          fs.renameSync(file, `${file}.${id}`)
+          ws = fs.createWriteStream(file, { flags: 'a' })
+
+          currSize = len
+          ws.once('ready', _ => {
+            ready = true
+            list.emit('data')
+          })
+        } else {
+          currSize += len
+          list.emit('data')
+        }
+      }
+      break
+  }
+})
+
+// 发送一个空消息, 通知主进程已经就绪
+process.send(null)

package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@gm5/logs",
+  "version": "1.0.0",
+  "type": "module",
+  "description": "日志存储拓展",
+  "main": "index.js",
+  "author": "yutent",
+  "keywords": [
+    "fivejs",
+    "logs"
+  ],
+  "repository": "https://github.com/bytedo/gmf.logs.git",
+  "license": "MIT"
+}

queue.js

@@ -0,0 +1,28 @@
+/**
+ * 简易版队列
+ * @author yutent<yutent.io@gmail.com>
+ * @date 2020/10/07 00:22:26
+ */
+
+import { EventEmitter } from 'events'
+import { inherits } from 'util'
+
+export default class Queue {
+  constructor() {
+    this.__store__ = []
+  }
+
+  get size() {
+    return this.__store__.length
+  }
+
+  append(item) {
+    this.__store__.push(item)
+  }
+
+  shift() {
+    return this.__store__.shift()
+  }
+}
+
+inherits(Queue, EventEmitter)