feat: new mjs scanner

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/plugin/src/scanner/js-scanner.ts

@@ -0,0 +1,55 @@
+import { plugin } from "@ccms/api"
+import * as fs from '@ccms/common/dist/fs'
+import { provideSingletonNamed } from "@ccms/container"
+
+const SCANNER_TYPE_NAME = 'js'
+
+@provideSingletonNamed(plugin.PluginScanner, SCANNER_TYPE_NAME)
+export class JSFileScanner implements plugin.PluginScanner {
+    type: string = SCANNER_TYPE_NAME
+
+    scan(target: any): plugin.PluginLoadMetadata[] {
+        return this.scanFolder(fs.concat(root, target)).map((file) => this.read(file))
+    }
+
+    read(file: any): plugin.PluginLoadMetadata {
+        return { file, type: this.type, scanner: this, loaded: false }
+    }
+
+    load(metadata: plugin.PluginLoadMetadata): plugin.PluginLoadMetadata {
+        if (metadata.type !== this.type) { return }
+        this.updatePlugin(metadata.file)
+        //@ts-ignore load plugin not use cache
+        metadata.instance = require(metadata.file.toString(), { cache: false })
+        return metadata
+    }
+
+    private scanFolder(folder: any): string[] {
+        var files = []
+        this.checkUpdateFolder(folder)
+        // must check file is exist maybe is a illegal symbolic link file
+        fs.list(folder).forEach((path: any) => {
+            let file = path.toFile()
+            if (file.exists() && file.getName().endsWith(".js")) {
+                files.push(file)
+            }
+        })
+        return files
+    }
+
+    private checkUpdateFolder(path: any) {
+        var update = fs.file(path, "update")
+        if (!update.exists()) {
+            update.mkdirs()
+        }
+    }
+
+    private updatePlugin(file: any) {
+        var update = fs.file(fs.file(fs.file(file).parentFile, 'update'), file.name)
+        if (update.exists()) {
+            console.i18n("ms.plugin.manager.build.update", { name: file.name })
+            fs.move(update, file, true)
+        }
+    }
+
+}