Get licenses check deps from gclient rather than pub

DEPS

@@ -394,10 +394,14 @@ deps = {
    'src/third_party/abseil-cpp':
    Var('chromium_git') + '/chromium/src/third_party/abseil-cpp.git' + '@' + '2d8c1340f0350828f1287c4eaeebefcf317bcfc9',
 
+   # Dart packages
+  'src/third_party/pkg/archive':
+  Var('github_git') + '/brendan-duncan/archive.git' + '@' + '3.1.2',
+
   'src/third_party/pkg/when':
-   Var('dart_git') + '/when.git' + '@' + '0.2.0',
+  Var('dart_git') + '/when.git' + '@' + '0.2.0',
 
-   'src/third_party/android_tools/ndk': {
+  'src/third_party/android_tools/ndk': {
      'packages': [
        {
         'package': 'flutter/android/ndk/${{platform}}',

ci/licenses.sh

@@ -62,7 +62,6 @@ dart --version
 # Runs in a subshell.
 function collect_licenses() (
   cd "$SRC_DIR/flutter/tools/licenses"
-  pub get
   dart --enable-asserts lib/main.dart         \
     --src ../../..                            \
     --out ../../../out/license_script_output  \

ci/licenses_golden/tool_signature

@@ -1,2 +1,2 @@
-Signature: d165688a88dd53153d8e32bd26d3fa6d
+Signature: dd0af3be798528c3303ec68043c4785c
 

tools/licenses/lib/main.dart

@@ -1662,6 +1662,11 @@ class _RepositoryLibWebpDirectory extends _RepositoryDirectory {
 class _RepositoryPkgDirectory extends _RepositoryDirectory {
   _RepositoryPkgDirectory(_RepositoryDirectory parent, fs.Directory io) : super(parent, io);
 
+  @override
+  bool shouldRecurse(fs.IoNode entry) {
+    return entry.name != 'archive';  // contains nothing that ends up in the binary executable
+  }
+
   @override
   _RepositoryDirectory createSubdirectory(fs.Directory entry) {
     if (entry.name == 'when')

tools/licenses/pubspec.yaml

@@ -1,10 +1,40 @@
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
 name: licenses
+publish_to: none
 environment:
   sdk: '>=2.8.0 <3.0.0'
 
+# Do not add any dependencies that require more than what is provided in
+# //third_party.pkg, //third_party/dart/pkg, or
+# //third_party/dart/third_party/pkg. In particular, package:test is not usable
+# here.
+
+# If you do add packages here, make sure you can run `pub get --offline`, and
+# check the .packages and .package_config to make sure all the paths are
+# relative to this directory into //third_party/dart
+
 dependencies:
-  archive: ^2.0.4
-  args: 1.5.0
-  crypto: ^2.0.2+1
-  meta: ^1.1.6
-  path: ^1.3.0
+  archive: any
+  args: any
+  crypto: any
+  meta: any
+  path: any
+
+dependency_overrides:
+  archive:
+    path: ../../../third_party/pkg/archive
+  args:
+    path: ../../../third_party/dart/third_party/pkg/args
+  collection:
+    path: ../../../third_party/dart/third_party/pkg/collection
+  crypto:
+    path: ../../../third_party/dart/third_party/pkg/crypto
+  meta:
+    path: ../../../third_party/dart/pkg/meta
+  path:
+    path: ../../../third_party/dart/third_party/pkg/path
+  typed_data:
+    path: ../../../third_party/dart/third_party/pkg/typed_data

tools/pub_get_offline.py

@@ -17,6 +17,7 @@
 ALL_PACKAGES = [
   os.path.join("src", "flutter", "flutter_frontend_server"),
   os.path.join("src", "flutter", "tools", "const_finder"),
+  os.path.join("src", "flutter", "tools", "licenses"),
 ]