DRAFT: Generates verification file for Chocolatey

lib/src/chocolatey.dart

@@ -15,6 +15,7 @@
 import 'dart:convert';
 import 'dart:io';
 
+import 'package:cli_pkg/cli_pkg.dart';
 import 'package:grinder/grinder.dart';
 import 'package:meta/meta.dart';
 import 'package:path/path.dart' as p;
@@ -86,6 +87,21 @@ String get chocolateyDartVersion {
   return result.toString();
 }
 
+/// The Chocolatey Repo Url
+///
+/// This is used for the Chocolatey verification file.
+/// It defaults to [githubRepo].
+final chocolateyRepoUrl = InternalConfigVariable.fn<String>(
+  () => 'https://github.com/${githubRepo.value}',
+);
+
+/// The Chocolatey Release URL
+///
+/// This is the Release URL used for the verification file.
+/// It defaults to https://github.com/[githubRepo]/releases/tag/[tag].
+final chocolateyReleaseUrl = InternalConfigVariable.fn<String>(() =>
+    'https://github.com/${githubRepo.value}/releases/tag/${version.toString()}');
+
 /// The set of files to include directly in the Chocolatey package.
 ///
 /// This should be at least enough files to compile the package's executables.
@@ -212,6 +228,8 @@ Future<void> _build() async {
 
   writeString("build/chocolatey/tools/LICENSE.txt", await license);
 
+  writeString("build/chocolatey/tools/VERIFICATION.txt", _verificationFile);
+
   writeString(
       'build/chocolatey/tools/source/pubspec.yaml',
       json.encode(Map.of(rawPubspec)
@@ -320,3 +338,41 @@ String _pathToElement(XmlNode? parent, String name) {
 
   return nesting.reversed.join(" > ");
 }
+
+// Generates verification file
+String get _verificationFile {
+  final os = Platform.operatingSystem;
+  final osVersion = Platform.operatingSystemVersion;
+  final dartInfo = Platform.version;
+  final tag = version.toString();
+  final repo = chocolateyRepoUrl.value;
+  final releaseUrl = chocolateyReleaseUrl.value;
+
+  final dartVersion = dartInfo.split(' ')[0];
+  final contents = '''VERIFICATION
+Verification is intended to assist the Chocolatey moderators and community
+in verifying that this package's contents are trustworthy.
+
+The executables in this package are built from source:
+
+Repository: $repo
+Tag: $tag
+Release URL: $releaseUrl
+
+On the following environment:
+
+* $os - $osVersion
+* Dart - $dartInfo
+
+The following steps are used to build.
+1. Install Dart (choco install dart-sdk --version $dartVersion)
+2. git clone -b $tag $repo.git 
+3. Get project dependencies (dart pub get) in project root
+4. Install Grinder (dart pub global activate grinder)
+5. grind pkg-chocolatey-pack
+6. Go to build/chocolatey
+
+''';
+
+  return contents;
+}

test/chocolatey_test.dart

@@ -16,13 +16,12 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
+import 'package:cli_pkg/src/chocolatey.dart';
+import 'package:cli_pkg/src/utils.dart';
 import 'package:test/test.dart';
 import 'package:test_process/test_process.dart';
 import 'package:xml/xml.dart' hide parse;
 
-import 'package:cli_pkg/src/chocolatey.dart';
-import 'package:cli_pkg/src/utils.dart';
-
 import 'descriptor.dart' as d;
 import 'utils.dart';
 
@@ -183,6 +182,26 @@ void main() {
               .validate();
         });
 
+        test('the Verification file', () async {
+          await d.package(pubspec, _enableChocolatey(), [_nuspec()]).create();
+          await (await grind(["pkg-chocolatey"])).shouldExit(0);
+          final version = dartVersion.isPreRelease ? "1.2.3-beta" : "1.2.3";
+          await d
+              .file(
+                  "my_app/build/chocolatey/tools/VERIFICATION.txt",
+                  allOf([
+                    contains(Platform.version),
+                    contains(Platform.operatingSystem),
+                    contains(Platform.operatingSystemVersion),
+                    contains(version),
+                    contains('https://github.com/google/right'),
+                    contains(
+                      'https://github.com/google/right/releases/tag/$version',
+                    ),
+                  ]))
+              .validate();
+        });
+
         test("Dart", () async {
           await d.package(pubspec, _enableChocolatey(), [_nuspec()]).create();
           await (await grind(["pkg-chocolatey"])).shouldExit(0);
@@ -404,6 +423,7 @@ String _enableChocolatey({bool token = true}) {
 
   if (token) buffer.writeln('pkg.chocolateyToken.value = "tkn";');
   buffer.writeln("pkg.addChocolateyTasks();");
+  buffer.writeln('pkg.githubRepo.value = "google/right";');
   buffer.writeln("grind(args);");
   buffer.writeln("}");