build: workaround yarn tgz bug

Author: filipesilva

.circleci/config.yml

@@ -102,7 +102,7 @@ jobs:
       - attach_workspace: *attach_options
       - restore_cache: *benchmark_aio_package_lock_key      
       - run: yarn admin -- build --local
-      - run: npm install --global ./dist/@angular-devkit_benchmark.tgz
+      - run: npm install --global ./dist/_angular-devkit_benchmark.tgz
       - run: cd benchmark/aio && yarn initialize
       - run: cd benchmark/aio && yarn benchmark
       - save_cache:

benchmark/aio/package.json

@@ -8,7 +8,7 @@
     "clone": "(git clone https://github.com/angular/angular || true) && cd angular && git fetch origin && git reset --hard dd2a650c3455f3bc0a88f8181758a84aacb25fea",
     "setup": "cd angular && yarn && cd aio && yarn && yarn setup",
     "//": "Shouldn't need to install the package twice, but the first install seems to leave two @ngtools/webpack installs around.",
-    "update": "cd angular/aio && yarn add ../../../../dist/@angular-devkit_build-angular.tgz --dev && yarn add ../../../../dist/_angular-devkit_build-angular.tgz --dev",
+    "update": "cd angular/aio && yarn add ../../../../dist/_angular-devkit_build-angular.tgz --dev && yarn add ../../../../dist/_angular-devkit_build-angular.tgz --dev",
     "benchmark": "cd angular/aio && benchmark --verbose -- yarn ~~build --configuration=stable"
   },
   "keywords": [],

lib/packages.ts

@@ -212,7 +212,9 @@ export const packages: PackageMap =
         relative: path.relative(path.dirname(__dirname), pkgRoot),
         main: path.resolve(pkgRoot, 'src/index.ts'),
         private: packageJson.private,
-        tar: path.join(distRoot, name.replace('/', '_') + '.tgz'),
+        // yarn doesn't take kindly to @ in tgz filenames
+        // https://github.com/yarnpkg/yarn/issues/6339
+        tar: path.join(distRoot, name.replace(/\/|@/g, '_') + '.tgz'),
         bin,
         name,
         packageJson,