add linux/musl-riscv64 build

Author: kasperk81

.github/workflows/ci.yml

@@ -33,12 +33,16 @@ jobs:
             name: linux-arm64
           - os: ubuntu-24.04
             name: linux-ppc64le
+          - os: ubuntu-24.04
+            name: linux-riscv64
           - os: ubuntu-24.04
             name: linux-musl-x64
           - os: ubuntu-24.04
             name: linux-musl-arm
           - os: ubuntu-24.04
             name: linux-musl-arm64
+          - os: ubuntu-24.04
+            name: linux-musl-riscv64
           - os: macos-13
             name: osx-x64
           - os: macos-13

Dockerfile.linux

@@ -6,4 +6,4 @@ RUN apt update && apt -y install pkg-config
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-CMD ["/bin/bash", "-c", "./build.libgit2.sh"]
+CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.linux-musl

@@ -1,8 +1,8 @@
 ARG ARCH='amd64'
-FROM multiarch/alpine:${ARCH}-v3.13
+FROM multiarch/alpine:${ARCH}-v{ALPINE_VERSION}
 RUN apk add --no-cache bash build-base cmake
 
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-CMD ["/bin/bash", "-c", "./build.libgit2.sh"]
+CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

README.md

@@ -12,8 +12,8 @@ the following platforms:
  - Windows (x86, x64, arm64)
  - macOS (x64, arm64)
  - Linux
-   - glibc: (x64, arm, arm64, ppc64le)
-   - musl: (x64, arm, arm64)
+   - glibc: (x64, arm, arm64, ppc64le, riscv64)
+   - musl: (x64, arm, arm64, riscv64)
 
  [lg2s-nb]: https://www.nuget.org/packages/LibGit2Sharp.NativeBinaries
  [lg2]: https://libgit2.github.com/

UpdateLibgit2ToSha.ps1

@@ -124,6 +124,7 @@ Push-Location $libgit2Directory
     <dllmap os="linux" cpu="arm" wordsize="32" dll="$binaryFilename" target="lib/linux-arm/lib$binaryFilename.so" />
     <dllmap os="linux" cpu="armv8" wordsize="64" dll="$binaryFilename" target="lib/linux-arm64/lib$binaryFilename.so" />
     <dllmap os="linux" cpu="ppc64le" wordsize="64" dll="$binaryFilename" target="lib/linux-ppc64le/lib$binaryFilename.so" />
+    <dllmap os="linux" cpu="riscv64" wordsize="64" dll="$binaryFilename" target="lib/linux-riscv64/lib$binaryFilename.so" />
     <dllmap os="osx" cpu="x86-64" wordsize="64" dll="$binaryFilename" target="lib/osx-x64/lib$binaryFilename.dylib" />
     <dllmap os="osx" cpu="armv8" wordsize="64" dll="$binaryFilename" target="lib/osx-arm64/lib$binaryFilename.dylib" />
 </configuration>

dockerbuild.sh

@@ -3,12 +3,17 @@
 set -e
 echo "building for $RID"
 
+alpineVersion=3.13
+
 if [[ $RID =~ arm64 ]]; then
     arch="arm64"
 elif [[ $RID =~ arm ]]; then
     arch="armhf"
 elif [[ $RID =~ ppc64le ]]; then
     arch="powerpc64le"
+elif [[ $RID =~ riscv64 ]]; then
+    arch="riscv64"
+    alpineVersion=3.20 # alpine 3.20 is the first version with official riscv64 support
 else
     arch="amd64"
 fi
@@ -19,7 +24,7 @@ else
     dockerfile="Dockerfile.linux"
 fi
 
-docker buildx build -t $RID -f $dockerfile --build-arg ARCH=$arch .
+docker buildx build -t $RID -f $dockerfile --build-arg ARCH=$arch --build-arg ALPINE_VERSION=$alpineVersion .
 
 docker run -t -e RID=$RID --name=$RID $RID
 

nuget.package/libgit2/LibGit2Sharp.dll.config

@@ -3,6 +3,7 @@
     <dllmap os="linux" cpu="arm" wordsize="32" dll="git2-3f4182d" target="lib/linux-arm/libgit2-3f4182d.so" />
     <dllmap os="linux" cpu="armv8" wordsize="64" dll="git2-3f4182d" target="lib/linux-arm64/libgit2-3f4182d.so" />
     <dllmap os="linux" cpu="ppc64le" wordsize="64" dll="git2-3f4182d" target="lib/linux-ppc64le/libgit2-3f4182d.so" />
+    <dllmap os="linux" cpu="riscv64" wordsize="64" dll="git2-3f4182d" target="lib/linux-riscv64/libgit2-3f4182d.so" />
     <dllmap os="osx" cpu="x86-64" wordsize="64" dll="git2-3f4182d" target="lib/osx-x64/libgit2-3f4182d.dylib" />
     <dllmap os="osx" cpu="armv8" wordsize="64" dll="git2-3f4182d" target="lib/osx-arm64/libgit2-3f4182d.dylib" />
 </configuration>