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stefanprodanstefanprodan
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Merge pull request #14 from pjbgf/testdarwin
Generate MacOS universal static libraries
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‎.github/workflows/build.yaml‎

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push:
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branches:
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- main
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- testdarwin2
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tags:
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- '**'
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paths-ignore:
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- README.md
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pull_request:
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paths-ignore:
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- README.md
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# paths-ignore:
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# - README.md
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# pull_request:
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# paths-ignore:
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# - README.md
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permissions:
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contents: write # needed to write releases
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packages: write # needed for ghcr access
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jobs:
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mac-build:
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# This job builds and releases "universal libraries" that are
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# supported by both darwin-amd64 and darwin-arm64.
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#
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# First builds in amd64, then cross-compile in arm64. Later combining
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# both outcomes onto a single binary for each static library.
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#
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# `macos-11` has been picked as support for arm64 was only added on Xcode 12.
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# Although some minor versions of Catalina 10.15 can support it, at the time
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# of testing, GitHub's macos-10.15 did not seem to.
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# Cross-compiling to arm64 on that runner consistently failed.
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runs-on: macos-11
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steps:
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- name: Checkout
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uses: actions/checkout@v2
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- name: Build universal static libraries for Darwin
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run: |
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TARGET_DIR=${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64 \
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BUILD_ROOT_DIR=${GITHUB_WORKSPACE}/libgit2/build/amd \
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./hack/static.sh all
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TARGET_DIR=${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64 \
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BUILD_ROOT_DIR=${GITHUB_WORKSPACE}/libgit2/build/arm \
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TARGET_ARCH=arm64 \
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CMAKE_APPLE_SILICON_PROCESSOR=arm64 \
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./hack/static.sh all
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mkdir -p ./libgit2-darwin/lib
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/include ./libgit2-darwin/
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/share ./libgit2-darwin/
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/cmake ./libgit2-darwin/lib/
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/engines-3 ./libgit2-darwin/lib/
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/ossl-modules ./libgit2-darwin/lib/
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mv ${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/pkgconfig ./libgit2-darwin/lib/
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libtool -static -o ./libgit2-darwin/lib/libcrypto.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/libcrypto.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64/lib/libcrypto.a
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libtool -static -o ./libgit2-darwin/lib/libgit2.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/libgit2.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64/lib/libgit2.a
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libtool -static -o ./libgit2-darwin/lib/libssh2.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/libssh2.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64/lib/libssh2.a
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libtool -static -o ./libgit2-darwin/lib/libssl.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/libssl.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64/lib/libssl.a
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libtool -static -o ./libgit2-darwin/lib/libz.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-amd64/lib/libz.a \
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${GITHUB_WORKSPACE}/build/libgit2-darwin-arm64/lib/libz.a
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tar -zcvf darwin-libs.tar.gz ./libgit2-darwin
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env:
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MACOSX_DEPLOYMENT_TARGET: 10.15
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- name: Create Release
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if: github.event_name != 'pull_request'
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id: create_release
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uses: actions/create-release@v1
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env:
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GITHUB_TOKEN: ${{ github.token }}
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with:
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release_name: ${{ github.ref }}
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tag_name: ${{ github.ref }}
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draft: false
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prerelease: true
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- name: Upload Release Asset
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if: github.event_name != 'pull_request'
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id: upload-release-asset
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uses: actions/upload-release-asset@v1
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env:
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GITHUB_TOKEN: ${{ github.token }}
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with:
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upload_url: ${{ steps.create_release.outputs.upload_url }}
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asset_path: ./darwin-libs.tar.gz
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asset_name: darwin-libs.tar.gz
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asset_content_type: application/gzip
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build:
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runs-on: ubuntu-latest
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env:
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key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
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restore-keys: |
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${{ runner.os }}-buildx-ghcache-
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- run: cat ./hack/Makefile
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- run: cat ./hack/static.sh
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- name: Build candidate image
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id: build_candidate
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uses: docker/build-push-action@v2

‎Dockerfile‎

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# This Dockerfile tests the hack/Makefile output against git2go.
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ARG BASE_VARIANT=alpine
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ARG GO_VERSION=1.17.6
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ARG GO_VERSION=1.17
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ARG XX_VERSION=1.1.0
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FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx

‎Dockerfile.test‎

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# This Dockerfile tests the hack/Makefile output against git2go.
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ARG BASE_VARIANT=alpine
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ARG GO_VERSION=1.17
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ARG XX_VERSION=1.1.0
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ARG LIBGIT2_IMG
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ARG LIBGIT2_TAG
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FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
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FROM ${LIBGIT2_IMG}:${LIBGIT2_TAG} AS build-deps
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FROM --platform=$BUILDPLATFORM ${BASE_VARIANT} AS build-base
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RUN apk add --no-cache \
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bash \
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curl \
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build-base \
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linux-headers \
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perl \
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cmake \
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pkgconfig \
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gcc \
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musl-dev \
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clang \
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lld
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FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
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COPY --from=xx / /
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FROM build-base AS build-cross
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ARG TARGETPLATFORM
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RUN xx-apk add --no-cache \
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build-base \
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pkgconfig \
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gcc \
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musl-dev \
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clang \
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lld \
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llvm \
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linux-headers
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WORKDIR /build
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COPY hack/static.sh .
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ENV CC=xx-clang
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ENV CXX=xx-clang++
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RUN CHOST=$(xx-clang --print-target-triple) \
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./static.sh build_libz
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RUN CHOST=$(xx-clang --print-target-triple) \
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./static.sh build_openssl
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RUN export LIBRARY_PATH="/usr/local/$(xx-info triple)/lib:/usr/local/$(xx-info triple)/lib64:${LIBRARY_PATH}" && \
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export PKG_CONFIG_PATH="/usr/local/$(xx-info triple)/lib/pkgconfig:/usr/local/$(xx-info triple)/lib64/pkgconfig" && \
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export OPENSSL_ROOT_DIR="/usr/local/$(xx-info triple)" && \
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export OPENSSL_CRYPTO_LIBRARY="/usr/local/$(xx-info triple)/lib64" && \
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export OPENSSL_INCLUDE_DIR="/usr/local/$(xx-info triple)/include/openssl"
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RUN ./static.sh build_libssh2
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RUN ./static.sh build_libgit2
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# trimmed removes all non necessary files (i.e. openssl binary).
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FROM build-cross AS trimmed
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ARG TARGETPLATFORM
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RUN mkdir -p /trimmed/usr/local/$(xx-info triple)/ && \
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mkdir -p /trimmed/usr/local/$(xx-info triple)/share
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RUN cp -r /usr/local/$(xx-info triple)/lib/ /trimmed/usr/local/$(xx-info triple)/ && \
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cp -r /usr/local/$(xx-info triple)/lib64/ /trimmed/usr/local/$(xx-info triple)/ | true && \
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cp -r /usr/local/$(xx-info triple)/include/ /trimmed/usr/local/$(xx-info triple)/ && \
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cp -r /usr/local/$(xx-info triple)/share/doc/ /trimmed/usr/local/$(xx-info triple)/share/
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FROM scratch as libs-arm64
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COPY --from=trimmed /trimmed/ /
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FROM scratch as libs-amd64
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COPY --from=trimmed /trimmed/ /
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FROM scratch as libs-armv7
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COPY --from=trimmed /trimmed/ /
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FROM libs-$TARGETARCH$TARGETVARIANT as libs
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# Everything above this line is a copy from Dockefile.
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FROM --platform=$BUILDPLATFORM golang:${GO_VERSION}-${BASE_VARIANT} as gostable
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FROM gostable AS go-linux
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# Build-base consists of build platform dependencies and xx.
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# These will be used at current arch to yield execute the cross compilations.
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FROM go-${TARGETOS} AS build-base
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FROM go-${TARGETOS} AS go-base
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RUN apk add clang lld pkgconfig
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COPY --from=xx / /
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# build-go-mod can still be cached at build platform architecture.
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FROM build-base as build-go-mod
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FROM go-base as build-go-mod
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WORKDIR /root/smoketest
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COPY tests/smoketest/go.mod .
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WORKDIR /root/smoketest
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COPY tests/smoketest/main.go .
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COPY --from=build-deps /usr/local/ /usr/local/
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COPY --from=libs /usr/local/ /usr/local/
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ENV CGO_ENABLED=1
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RUN export LIBRARY_PATH="/usr/local/$(xx-info triple):/usr/local/$(xx-info triple)/lib64" && \

‎README.md‎

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# golang-with-libgit2
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This repository contains a `Dockerfile` with two files: `Makefile` and `static.sh`.
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This repository contains a `Dockerfile` with the statically built libgit2 and its dependency chain.
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The `hack` directory contains two main files: `Makefile` and `static.sh`.
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Both of which can be used to build the [libgit2][] dependency chain for **AMD64, ARM64 and ARMv7** binaries
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of Go projects that depend on [git2go][].
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The `Makefile` is useful for development environments and will leverage OS specific packages to build `libgit2`.
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The `static.sh` will build all `libgit2` dependencies from source using `musl` toolchain. This enables for a full
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static binary with the freedom of configuring each of the dependencies in chain.
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Alternatively, the statically built libraries can be pulling from the produced images for Linux or from the github release artifacts for MacOS.
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### :warning: **Public usage discouraged**
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The set of dependencies was handpicked for the Flux project, based on the issue list documented below. While this setup
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- [ ] [libgit2/git2go#836](https://github.com/libgit2/git2go/issues/836)
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- [ ] [libgit2/git2go#837](https://github.com/libgit2/git2go/issues/837)
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---
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**NOTE**
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The issues above do not affect libgit2 built with `static.sh` as all its
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> **NOTE:** The issues above do not affect libgit2 built with `static.sh` as all its
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dependencies have been configured to be optimal for its use, as the first supported version of libgit2 is `1.3.0`.
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---
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## Usage
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The [Dockerfile.test](./Dockerfile.test) file provides a working example on how to statically build a golang application that has a dependency to libgit2 and git2go.
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The [Dockerfile.test](./Dockerfile.test) file provides a working example on how to statically build a golang application that has a dependency on libgit2 and git2go.
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The example will statically build all dependencies based on the versions specified on `static.sh`.
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Then statically build the golang application and deploy it into an image based off `gcr.io/distroless/static`.

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