refactor: rewrite typescript-deno-plugin

typescript-deno-plugin/src/configuration.ts

@@ -0,0 +1,36 @@
+import merge from "deepmerge";
+
+export type DenoPluginConfig = {
+  enable: boolean;
+  dtsFilepaths?: string[];
+  import_map: string;
+};
+
+export class ConfigurationManager {
+  private static readonly defaultConfiguration: DenoPluginConfig = {
+    enable: true,
+    dtsFilepaths: [],
+    import_map: ""
+  };
+
+  private readonly _configUpdatedListeners = new Set<() => void>();
+
+  public get config(): DenoPluginConfig {
+    return this._configuration;
+  }
+
+  private _configuration: DenoPluginConfig = ConfigurationManager
+    .defaultConfiguration;
+
+  public update(c: DenoPluginConfig) {
+    this._configuration = merge(this.config, c);
+
+    for (const listener of this._configUpdatedListeners) {
+      listener();
+    }
+  }
+
+  public onUpdatedConfig(listener: () => void) {
+    this._configUpdatedListeners.add(listener);
+  }
+}

typescript-deno-plugin/src/deno.ts

@@ -0,0 +1,35 @@
+import * as path from "path";
+
+export class Deno {
+  static get DENO_DEPS(): string {
+    return path.join(Deno.DENO_DIR, "deps");
+  }
+  static get DENO_DIR(): string {
+    // ref https://deno.land/manual.html
+    // On Linux/Redox: $XDG_CACHE_HOME/deno or $HOME/.cache/deno
+    // On Windows: %LOCALAPPDATA%/deno (%LOCALAPPDATA% = FOLDERID_LocalAppData)
+    // On macOS: $HOME/Library/Caches/deno
+    // If something fails, it falls back to $HOME/.deno
+    let denoDir = process.env.DENO_DIR;
+    if (denoDir === undefined) {
+      switch (process.platform) {
+        case "win32":
+          denoDir = `${process.env.LOCALAPPDATA}\\deno`;
+          break;
+        case "darwin":
+          denoDir = `${process.env.HOME}/Library/Caches/deno`;
+          break;
+        case "linux":
+          denoDir = `${process.env.HOME}/.cache/deno`;
+          break;
+        default:
+          denoDir = `${process.env.HOME}/.deno`;
+      }
+    }
+
+    return denoDir;
+  }
+  static get declarationFile(): string[] {
+    return ["lib.deno_runtime.d.ts"].map(v => path.join(Deno.DENO_DIR, v));
+  }
+}