Modernize NuGet package: Native AOT, trimming, and .NET Standard 2.0 cross-platform support

.github/workflows/build.yml

@@ -86,9 +86,11 @@ jobs:
           build-mode: manual
       - name: Built .Net package and test
         run: |
-          mkdir -p LibArchive.Net/runtimes/osx-any64 LibArchive.Net/runtimes/linux-x64
-          mv libarchive.so LibArchive.Net/runtimes/linux-x64/
-          mv libarchive.dylib LibArchive.Net/runtimes/osx-any64/
+          mkdir -p LibArchive.Net/runtimes/osx-x64/native LibArchive.Net/runtimes/osx-arm64/native LibArchive.Net/runtimes/linux-x64/native LibArchive.Net/runtimes/linux-musl-x64/native
+          mv libarchive.so LibArchive.Net/runtimes/linux-x64/native/
+          cp LibArchive.Net/runtimes/linux-x64/native/libarchive.so LibArchive.Net/runtimes/linux-musl-x64/native/
+          mv libarchive.dylib LibArchive.Net/runtimes/osx-x64/native/
+          cp LibArchive.Net/runtimes/osx-x64/native/libarchive.dylib LibArchive.Net/runtimes/osx-arm64/native/
           touch libarchive.dylib
           dotnet build --configuration Release
           dotnet test --nologo
@@ -125,3 +127,50 @@ jobs:
       - name: Upload Nuget package
         if: contains(github.ref, 'refs/tags/v')
         run: dotnet nuget push *.nupkg -k ${{ secrets.NUGET_KEY }} --source https://api.nuget.org/v3/index.json
+
+  mono-test:
+    name: Test .NET Standard 2.0 with Mono
+    needs: [linux]
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Install Mono
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mono-complete mono-devel
+          mono --version
+
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v5.0.0
+
+      - name: Retrieve build artifacts
+        uses: actions/download-artifact@v5
+        with:
+          name: dist
+
+      - name: Extract and setup libraries
+        run: |
+          # Extract the nupkg to get the native libraries
+          unzip -q *.nupkg -d extracted
+          mkdir -p LibArchive.Net/runtimes
+          cp -r extracted/runtimes/* LibArchive.Net/runtimes/
+          ls -laR LibArchive.Net/runtimes/
+
+      - name: Build test project for .NET Framework
+        run: |
+          dotnet restore Test.LibArchive.Net/Test.LibArchive.Net.csproj
+          dotnet build Test.LibArchive.Net/Test.LibArchive.Net.csproj --configuration Release --framework net462 --no-restore
+
+      - name: Run tests with Mono (.NET Standard 2.0)
+        run: |
+          # Run tests targeting net462 which uses the netstandard2.0 library
+          dotnet test Test.LibArchive.Net/Test.LibArchive.Net.csproj --configuration Release --framework net462 --no-build --verbosity normal
+
+      - name: Display test results
+        if: always()
+        run: |
+          echo "Mono version used:"
+          mono --version
+          echo "Test completed for .NET Standard 2.0 compatibility"

.github/workflows/check-native-dependencies.yml

@@ -0,0 +1,50 @@
+name: Check Native Dependencies
+
+on:
+  schedule:
+    # Run weekly on Mondays at 9:00 AM UTC
+    - cron: '0 9 * * 1'
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Dry run (no PR creation)'
+        required: false
+        default: 'false'
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  check-updates:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y curl jq
+
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Check for updates
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          DRY_RUN: ${{ github.event.inputs.dry_run == 'true' && '1' || '0' }}
+        run: |
+          bash scripts/check-native-updates.sh
+
+      - name: Summary
+        if: always()
+        run: |
+          echo "### Native Dependency Check Complete" >> $GITHUB_STEP_SUMMARY
+          echo "" >> $GITHUB_STEP_SUMMARY
+          echo "Check the job logs for details on any updates found." >> $GITHUB_STEP_SUMMARY

.gitignore

@@ -396,3 +396,9 @@ FodyWeavers.xsd
 
 # JetBrains Rider
 *.sln.iml
+
+# Claude Code / Claude Flow
+.claude/
+.claude-flow/
+.swarm/
+CLAUDE.md

LibArchive.Net/LibArchive.Net.csproj

@@ -1,13 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
     <Nullable>enable</Nullable>
     <LangVersion>latest</LangVersion>
-    <RuntimeIdentifiers>win-x64;linux-x64;osx-x64;osx-arm64</RuntimeIdentifiers>
+    <!-- Allow unsafe code for UTF-8 string handling in .NET Standard 2.0 -->
+    <AllowUnsafeBlocks Condition="'$(TargetFramework)' == 'netstandard2.0'">true</AllowUnsafeBlocks>
+    <RuntimeIdentifiers>win-x86;win-x64;win-arm64;linux-x64;linux-musl-x64;osx-x64;osx-arm64</RuntimeIdentifiers>
+
+    <!-- AOT and Trimming Support (for .NET 6+) -->
+    <IsAotCompatible Condition="!$([MSBuild]::GetTargetFrameworkIdentifier('$(TargetFramework)')) == '.NETStandard'">true</IsAotCompatible>
+    <IsTrimmable Condition="!$([MSBuild]::GetTargetFrameworkIdentifier('$(TargetFramework)')) == '.NETStandard'">true</IsTrimmable>
+    <EnableTrimAnalyzer Condition="!$([MSBuild]::GetTargetFrameworkIdentifier('$(TargetFramework)')) == '.NETStandard'">true</EnableTrimAnalyzer>
+    <EnableAotAnalyzer Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">true</EnableAotAnalyzer>
+
+    <!-- Package Metadata -->
     <PackageLicenseExpression>BSD-2-Clause</PackageLicenseExpression>
     <PackageId>LibArchive.Net</PackageId>
-    <PackageTags>Compression;Libarchive;Tar;Zip;7Zip;Rar</PackageTags>
-    <Description>This package provides access to the native libarchive compression library (included) on 64 bit Linux, Windows and MacOS platforms (x86-64 for all three, plus arm64/M1 for Mac)</Description>
+    <PackageTags>Compression;Libarchive;Tar;Zip;7Zip;Rar;AOT;NativeAOT;Trimming</PackageTags>
+    <Description>This package provides access to the native libarchive compression library (included) on Linux (x64, musl-x64), Windows (x86, x64, arm64), and macOS (x64, arm64) platforms. Supports Native AOT and trimming for .NET 6+.</Description>
     <Authors>James A Sutherland</Authors>
     <Copyright>Copyright 2022-2024</Copyright>
     <Title>LibArchive.Net</Title>
@@ -23,6 +33,8 @@
     </Content>
   </ItemGroup>
   <ItemGroup>
+    <!-- Add System.Text.Encoding.CodePages for frameworks that don't have built-in UTF-8 guarantees -->
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'netcoreapp3.1'))" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
   </ItemGroup>
 </Project>