3 files changed, 205 insertions, 0 deletions

diff --git a/src/setup/MetadataTask/GenerateMetadata.cs b/src/setup/MetadataTask/GenerateMetadata.cs
new file mode 100644
index 00000000..4071c271
--- /dev/null
+++ b/src/setup/MetadataTask/GenerateMetadata.cs
@@ -0,0 +1,113 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Tasks
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Linq;
+    using System.Security.Cryptography;
+    using System.Text.Json;
+    using System.Text.Json.Serialization;
+    using Microsoft.Build.Framework;
+    using Microsoft.Build.Utilities;
+    using WixToolset.Data;
+    using WixToolset.Data.Symbols;
+
+    public class GenerateMetadata : Task
+    {
+        private static readonly JsonSerializerOptions SerializerOptions = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+            IgnoreNullValues = true,
+            WriteIndented = true,
+            Converters = { new JsonStringEnumConverter(JsonNamingPolicy.CamelCase) },
+        };
+
+        [Required]
+        public string TargetFile { get; set; }
+
+        [Required]
+        public string WixpdbFile { get; set; }
+
+        public override bool Execute()
+        {
+            var intermediate = Intermediate.Load(this.WixpdbFile);
+
+            var section = intermediate.Sections.Single();
+
+            if (section.Type != SectionType.Bundle)
+            {
+                return false;
+            }
+
+            (var metadata, var sourceLineNumber) = this.GetBundleMetadata(section);
+
+            if (metadata != null)
+            {
+                this.PopulateFileInfo(metadata);
+
+                this.SaveMetadata(metadata, sourceLineNumber);
+            }
+
+            return true;
+        }
+
+        private (Metadata, SourceLineNumber) GetBundleMetadata(IntermediateSection section)
+        {
+            var bundleSymbol = section.Symbols.OfType<WixBundleSymbol>().Single();
+
+            var metadata = new Metadata
+            {
+                Type = MetadataType.Burn,
+                Name = bundleSymbol.Name,
+                Version = bundleSymbol.Version,
+                Publisher = bundleSymbol.Manufacturer,
+                Description = "Installation for " + bundleSymbol.Name,
+                SupportUrl = bundleSymbol.HelpUrl,
+                BundleCode = bundleSymbol.BundleId,
+                UpgradeCode = bundleSymbol.UpgradeCode,
+                AboutUrl = bundleSymbol.AboutUrl,
+                Architecture = PlatformToArchitecture(bundleSymbol.Platform),
+            };
+
+            return (metadata, bundleSymbol.SourceLineNumbers);
+        }
+
+        private void PopulateFileInfo(Metadata metadata)
+        {
+            var fi = new FileInfo(this.TargetFile);
+
+            using (var sha256 = SHA256.Create())
+            using (var stream = fi.OpenRead())
+            {
+                var hash = sha256.ComputeHash(stream);
+
+                metadata.File = fi.Name;
+                metadata.Created = fi.CreationTimeUtc.ToString("O");
+                metadata.Size = fi.Length;
+                metadata.Sha256 = BitConverter.ToString(hash).Replace("-", String.Empty);
+            }
+        }
+
+        private void SaveMetadata(Metadata metadata, SourceLineNumber sourceLineNumber)
+        {
+            var metadataFilePath = Path.ChangeExtension(this.TargetFile, "metadata.json");
+
+            var json = JsonSerializer.Serialize(metadata, SerializerOptions);
+
+            File.WriteAllText(metadataFilePath, json);
+        }
+
+        private static ArchitectureType PlatformToArchitecture(Platform platform)
+        {
+            switch (platform)
+            {
+                case Platform.X86: return ArchitectureType.X86;
+                case Platform.X64: return ArchitectureType.X86;
+                case Platform.ARM64: return ArchitectureType.X86;
+                default: throw new ArgumentException($"Unknown platform {platform}");
+            }
+        }
+    }
+}
diff --git a/src/setup/MetadataTask/Metadata.cs b/src/setup/MetadataTask/Metadata.cs
new file mode 100644
index 00000000..139d9240
--- /dev/null
+++ b/src/setup/MetadataTask/Metadata.cs
@@ -0,0 +1,78 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Tasks
+{
+    public enum MetadataType
+    {
+        Unknown,
+        Burn,
+        Msi,
+    }
+
+    public enum ArchitectureType
+    {
+        Unknown,
+        Arm64,
+        X64,
+        X86,
+    }
+
+    //{
+    //  "id": [PackageSymbolId] | [BundleSymbolId],
+    //  "type": "msi" | "burn"
+    //  "name": [ProductName] | [BundleName]
+    //  "locale": [ProductLanguage] | [BundleLanguage]
+    //  "publisher": [Manufacturer]
+    //  "aboutUrl": [ARPURLINFOABOUT] | [AboutUrl]
+    //  "supportUrl": [ARPHELPLINK] | [SupportUrl]
+    //  "description": [ARPCOMMENTS] | "Installation for" + [BundleName]
+    //  "license": [ProductLicense] | [BundleLicense]
+    //  "architecture": "x86" | "x64" | "arm64"
+    //  "size": ####
+    //  "sha256": hex,
+    //  "file": <filename>
+    //  "created": <ISO timestamp>
+    //  "productCode": [ProductCode]
+    //  "bundleCode": [BundleId]
+    //  "upgradeCode": [UpgradeCode]
+    //}
+
+    public class Metadata
+    {
+        public string Id { get; set; }
+
+        public MetadataType Type { get; set; }
+
+        public string Name { get; set; }
+
+        public string Version { get; set; }
+
+        public string Locale { get; set; }
+
+        public string Publisher { get; set; }
+
+        public string AboutUrl { get; set; }
+
+        public string SupportUrl { get; set; }
+
+        public string Description { get; set; }
+
+        public string License { get; set; }
+
+        public ArchitectureType Architecture { get; set; }
+
+        public string File { get; set; }
+
+        public long Size { get; set; }
+
+        public string Sha256 { get; set; }
+
+        public string Created { get; set; }
+
+        public string ProductCode { get; set; }
+
+        public string BundleCode { get; set; }
+
+        public string UpgradeCode { get; set; }
+    }
+}
diff --git a/src/setup/MetadataTask/MetadataTask.csproj b/src/setup/MetadataTask/MetadataTask.csproj
new file mode 100644
index 00000000..2146a591
--- /dev/null
+++ b/src/setup/MetadataTask/MetadataTask.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net472</TargetFramework>
+    <DebugType>embedded</DebugType>
+    <!-- https://github.com/Microsoft/msbuild/issues/2360 -->
+    <PlatformTarget>AnyCPU</PlatformTarget>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Build.Tasks.Core" />
+    <PackageReference Include="System.Text.Json" />
+    <PackageReference Include="WixToolset.Data" />
+  </ItemGroup>
+</Project>