feat: support linux-arm64 runtime (libc)

Author: YOU54F

CONTRIBUTING.md

@@ -59,16 +59,18 @@ version by executing the script in Bash (or Git Bash on Windows):
 build/download-native-libs.sh
 ```
 
-Alternatively you can download a particular FFI version from the [pact-referece] releases or build your own version
+Alternatively you can download a particular FFI version from the [pact-reference] releases or build your own version
 locally, and then copy the artifacts into the folders:
 
 ```
 build/
     linux/
         x86_64/
             libpact_ffi.so
+        aarch64/
+            libpact_ffi.so
     osx/
-        aarch64-apple-darwin/
+        aarch64/
             libpact_ffi.dylib
         x86_64/
             libpact_ffi.dylib

README.md

@@ -232,16 +232,16 @@ For writing messaging pacts instead of requests/response pacts, see the [messagi
 
 Due to using a shared native library instead of C# for the main Pact logic only certain OSs are supported:
 
-| OS           | Arch        | Support                                                            |
-| ------------ | ----------- | -------------------------------------------------------------------|
-| Windows      | x86         | ❌ No                                                              |
-| Windows      | x64         | ✔️ Yes                                                             |
-| Linux (libc) | ARM         | ❌ No                                                              |
-| Linux (libc) | x86         | ❌ No                                                              |
-| Linux (libc) | x64         | ✔️ Yes                                                             |
-| Linux (musl) | Any         | ❌ [No](https://github.com/pact-foundation/pact-net/issues/374)    |
-| OSX          | x64         | ✔️ Yes                                                             |
-| OSX          | ARM (M1/M2) | ✔️ Yes                                                             |
+| OS           | Arch         | Support                                                            |
+| ------------ | ------------ | -------------------------------------------------------------------|
+| Windows      | x86          | ❌ No                                                              |
+| Windows      | x64          | ✔️ Yes                                                             |
+| Linux (libc) | ARM64        | ✔️ Yes                                                              |
+| Linux (libc) | x64          | ✔️ Yes                                                             |
+| Linux (libc) | x86          | ❌ No                                                              |
+| Linux (musl) | Any          | ❌ [No](https://github.com/pact-foundation/pact-net/issues/374)    |
+| OSX          | x64          | ✔️ Yes                                                             |
+| OSX          | ARM64 (M1/M2)| ✔️ Yes                                                             |
 
 ### Pact Specification
 

build/download-native-libs.sh

@@ -64,6 +64,7 @@ download_native() {
 
 download_native "pact_ffi" "windows" "x86_64" "dll"
 download_native "libpact_ffi" "linux" "x86_64" "so"
+download_native "libpact_ffi" "linux" "aarch64" "so"
 download_native "libpact_ffi" "macos" "x86_64" "dylib"
 download_native "libpact_ffi" "macos" "aarch64" "dylib"
 

src/PactNet/PactNet.csproj

@@ -33,7 +33,14 @@
       <Link>libpact_ffi.so</Link>
       <PackagePath>runtimes/linux-x64/native</PackagePath>
       <Pack>true</Pack>
-      <CopyToOutputDirectory Condition="'$(IsLinux)'">PreserveNewest</CopyToOutputDirectory>
+      <CopyToOutputDirectory Condition="'$(IsLinux)' And '$(IsArm64)' == 'False'">PreserveNewest</CopyToOutputDirectory>
+      <Visible>false</Visible>
+    </Content>
+    <Content Include="$(MSBuildProjectDirectory)\..\..\build\linux\aarch64\libpact_ffi.so">
+      <Link>libpact_ffi.so</Link>
+      <PackagePath>runtimes/linux-arm64/native</PackagePath>
+      <Pack>true</Pack>
+      <CopyToOutputDirectory Condition="'$(IsLinux)' And '$(IsArm64)' == 'True'">PreserveNewest</CopyToOutputDirectory>
       <Visible>false</Visible>
     </Content>
     <Content Include="$(MSBuildProjectDirectory)\..\..\build\macos\x86_64\libpact_ffi.dylib">