feat(zipfs): support common ZIP archive formats

.yarn/versions/9438587d.yml

@@ -0,0 +1,2 @@
+releases:
+  vscode-zipfs: patch

packages/vscode-zipfs/README.md

@@ -1,6 +1,6 @@
 # ZipFS
 
-This extension adds support into VSCode to read files directly from zip archives. It's maintained as part of the Yarn toolchain. Using this extension together with the [Yarn SDK](https://yarnpkg.com/getting-started/editor-sdks) will allow you to seamlessly open & edit files from your cache.
+This extension adds support into VSCode to read files directly from zip archives and common ZIP-based package formats, including JAR, WAR, APK, IPA, and CRX files. It's maintained as part of the Yarn toolchain. Using this extension together with the [Yarn SDK](https://yarnpkg.com/getting-started/editor-sdks) will allow you to seamlessly open & edit files from your cache.
 
 ## New protocol: `zip:`
 

packages/vscode-zipfs/package.json

@@ -37,7 +37,13 @@
           "ZIP"
         ],
         "extensions": [
-          ".zip"
+          ".zip",
+          ".jar",
+          ".war",
+          ".apk",
+          ".ipa",
+          ".crx",
+          ".3mf"
         ]
       }
     ],

packages/vscode-zipfs/sources/ZipFSProvider.ts

@@ -1,11 +1,14 @@
-import {VirtualFS, PosixFS, npath} from '@yarnpkg/fslib';
-import {ZipOpenFS}                 from '@yarnpkg/libzip';
-import * as vscode                 from 'vscode';
+import {VirtualFS, PosixFS}             from '@yarnpkg/fslib';
+import {ZipOpenFS}                      from '@yarnpkg/libzip';
+import * as vscode                      from 'vscode';
+
+import {isZipFile, ZIP_FILE_EXTENSIONS} from './zipFileExtensions';
 
 export class ZipFSProvider implements vscode.FileSystemProvider {
   private readonly fs = new PosixFS(
     new VirtualFS({
       baseFs: new ZipOpenFS({
+        fileExtensions: ZIP_FILE_EXTENSIONS,
         useCache: true,
         maxOpenFiles: 80,
       }),
@@ -17,7 +20,7 @@ export class ZipFSProvider implements vscode.FileSystemProvider {
 
     switch (true) {
       case stat.isDirectory():
-      case npath.extname(uri.fsPath) === `.zip`: {
+      case isZipFile(uri.fsPath): {
         stat.type = vscode.FileType.Directory;
       } break;
 

packages/vscode-zipfs/sources/zipFileExtensions.ts

@@ -0,0 +1,15 @@
+import {npath} from '@yarnpkg/fslib';
+
+export const ZIP_FILE_EXTENSIONS = [
+  `.zip`,
+  `.jar`,
+  `.war`,
+  `.apk`,
+  `.ipa`,
+  `.crx`,
+  `.3mf`,
+];
+
+export function isZipFile(path: string): boolean {
+  return ZIP_FILE_EXTENSIONS.includes(npath.extname(path));
+}

packages/vscode-zipfs/tests/zipFileExtensions.test.ts

@@ -0,0 +1,21 @@
+import extensionManifest                from '../package.json';
+import {isZipFile, ZIP_FILE_EXTENSIONS} from '../sources/zipFileExtensions';
+
+describe(`ZipFS archive extensions`, () => {
+  it(`keeps the VS Code language registration in sync with the filesystem`, () => {
+    expect(extensionManifest.contributes.languages[0].extensions).toEqual(ZIP_FILE_EXTENSIONS);
+  });
+
+  it.each([
+    [`archive.zip`, true],
+    [`application.jar`, true],
+    [`service.war`, true],
+    [`app.apk`, true],
+    [`application.ipa`, true],
+    [`extension.crx`, true],
+    [`model.3mf`, true],
+    [`archive.tar.gz`, false],
+  ])(`recognizes %s as %s`, (path, expected) => {
+    expect(isZipFile(path)).toBe(expected);
+  });
+});