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wip: add barebone Github actions pipeline.
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‎.github/workflows/bsd-user.yml

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name: Build, Test & Publush
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# Controls when the action will run.
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on:
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# Triggers the workflow on all push or pull request events
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push:
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pull_request:
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release:
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types: [created]
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# Allows you to run this workflow manually from the Actions tab
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workflow_dispatch:
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schedule:
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- cron: "0 0 * * *"
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# added using https://github.com/step-security/secure-repo
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permissions:
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contents: read
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jobs:
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build_in_docker:
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name: Build&Push to Registry
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runs-on: ubuntu-latest
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permissions:
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packages: write
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strategy:
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fail-fast: false
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matrix:
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base_image: ['debian:sid-slim', 'debian:12-slim', 'ubuntu:latest']
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env:
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GHCR_REPO: ghcr.io/${{ github.repository_owner }}/qemu-bsd-user-l4b
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BASE_IMAGE: ${{ matrix.base_image }}
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steps:
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- name: Checkout repository
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uses: actions/checkout@v4
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- name: Set up QEMU
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id: qemu
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uses: docker/setup-qemu-action@v3
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Login to GitHub Container Registry
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uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.repository_owner }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Set dynamic environment
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run: |
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GIT_BRANCH="${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
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OS_TAG="`echo ${{ env.BASE_IMAGE }} | sed 's|:|-|g'`"
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# linux/arm/v7 is missing latest clang
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PLATFORMS="`docker manifest inspect ${{ env.BASE_IMAGE }} | \
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jq -r '.manifests[] | "\(.platform.os)/\(.platform.architecture)\(if .platform.variant != null then "/\(.platform.variant)" else "" end)"' | \
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sort -u | ./bsd-user/scripts/ci/get-arch-buildargs fltplatforms | paste -sd ','`"
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echo "GIT_BRANCH=${GIT_BRANCH}" >> $GITHUB_ENV
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echo "PLATFORMS=${PLATFORMS}" >> $GITHUB_ENV
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echo "OS_TAG=${OS_TAG}" >> $GITHUB_ENV
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echo "BUILD_IMAGE=${{ env.GHCR_REPO }}:latest-${OS_TAG}" >> $GITHUB_ENV
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- name: Build Docker image
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uses: docker/build-push-action@v6
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env:
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CACHE_SPEC: "type=registry,ref=${{ env.GHCR_REPO }}:${{ env.GIT_BRANCH }}-${{ env.OS_TAG}}-buildcache"
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with:
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context: .
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file: ./bsd-user/scripts/ci/Dockerfile
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build-args: |
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BASE_IMAGE=${{ env.BASE_IMAGE }}
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tags: ${{ env.BUILD_IMAGE }}
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platforms: ${{ env.PLATFORMS }}
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push: false
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cache-from: ${{ env.CACHE_SPEC }}
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cache-to: ${{ env.CACHE_SPEC }},mode=max

‎bsd-user/scripts/ci/Dockerfile

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# syntax=docker/dockerfile:1.7-labs
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ARG BASE_IMAGE="debian:sid-slim"
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FROM ${BASE_IMAGE} AS build
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LABEL maintainer="Maksym Sobolyev <[email protected]>"
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ARG DEBIAN_FRONTEND=noninteractive
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ARG APT_INSTALL="apt-get install --no-install-recommends -y"
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ARG APT_UPDATE="apt-get -y update -qq"
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RUN ${APT_UPDATE}
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ARG CLANG_VER=19
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ARG BUILD_PKGS="libelf-dev llvm-${CLANG_VER} clang-${CLANG_VER} python-is-python3 \
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python3-pip python3-setuptools ninja-build pkg-config libglib2.0-dev git \
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libbsd-dev"
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WORKDIR /src
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RUN --mount=type=bind,source=bsd-user/scripts/ci/pre-build.sh,target=pre-build.sh \
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./pre-build.sh
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RUN ${APT_INSTALL} ${BUILD_PKGS}
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ARG TARGETPLATFORM
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ARG BASE_IMAGE
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RUN --mount=type=bind,target=.,rw \
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eval `./bsd-user/scripts/ci/get-arch-buildargs platformopts` && \
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bsd-user/scripts/ci/build.sh

‎bsd-user/scripts/ci/build.sh

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#!/bin/sh
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set -e
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set -x
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BDIR=build_ci
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_EXTRA_CFLAGS="-O1 -pipe -ffunction-sections -fdata-sections"
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if [ ! -z "${EXTRA_CFLAGS}" ]
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then
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_EXTRA_CFLAGS="${_EXTRA_CFLAGS} ${EXTRA_CFLAGS}"
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fi
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_EXTRA_LDFLAGS="-Wl,--gc-sections"
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if [ ! -z "${EXTRA_LDFLAGS}" ]
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then
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_EXTRA_LDLAGS="${_EXTRA_LDFLAGS} ${EXTRA_LDFLAGS}"
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fi
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mkdir ${BDIR}
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cd ${BDIR}
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../configure --disable-system --static --target-list=x86_64-bsd-user \
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--extra-cflags="${_EXTRA_CFLAGS}" --cc="clang-${CLANG_VER}" \
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--extra-ldflags="${_EXTRA_LDLAGS}"
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ninja

‎bsd-user/scripts/ci/get-arch-buildargs

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#!/bin/sh
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set -e
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debug_broken() {
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echo "${BASE_IMAGE}: ${1} is BROKEN: ${2}" >&2
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}
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fltplatforms() {
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FILT="grep -v -e unknown" # docker multi-arch is weird
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case "${BASE_IMAGE}" in
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debian:sid*)
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FILT_ADD="linux/mips64le"
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debug_broken "linux/mips64le" 'apt-get: Exec format error'
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;;
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debian:12*)
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FILT_ADD="linux/arm/v7 linux/ppc64le linux/mips64le"
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debug_broken "linux/arm/v7" 'Unable to locate package llvm-18'
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debug_broken "linux/ppc64le" 'Unable to locate package llvm-18'
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debug_broken "linux/mips64le" 'Unable to locate package llvm-18'
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;;
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ubuntu:latest)
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FILT_ADD="linux/ppc64le linux/arm/v7"
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debug_broken "linux/ppc64le" 'ERROR: C compiler "clang-18" either does not exist or does not work.'
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debug_broken "linux/arm/v7" 'Unable to locate package llvm-18'
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;;
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*)
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;;
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esac
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for f in linux/riscv64 linux/s390x
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do
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FILT_ADD="${FILT_ADD} ${f}"
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debug_broken "${f}" "host is not supported yet (send PR!)"
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done
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if [ ! -z "${FILT_ADD}" ]
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then
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for f in ${FILT_ADD}
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do
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FILT="${FILT} -e ^${f}\$"
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done
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fi
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${FILT}
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}
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platformopts() {
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case "${BASE_IMAGE}" in
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debian:12*)
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EXTRA_CFLAGS="-DHAVE_BSD_STRING_H=1"
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case "${TARGETPLATFORM}" in
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linux/386|linux/arm/v5)
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EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-atomic-alignment"
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;;
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esac
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echo "export EXTRA_CFLAGS=\"${EXTRA_CFLAGS}\""
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echo "export EXTRA_LDFLAGS=\"-lbsd -lmd\""
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;;
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esac
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test ! -z "${@}" && echo "${@}"
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}
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case "${1}" in
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platformopts)
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shift
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platformopts "${@}"
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;;
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fltplatforms)
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fltplatforms
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;;
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*)
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echo "usage: `basename "${0}"` (platformopts|fltplatforms) [opts]" 2>&1
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exit 1
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;;
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esac

‎bsd-user/scripts/ci/pre-build.sh

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#!/bin/sh
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set -e
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install_clang() {
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${APT_INSTALL} curl gpg lsb-release ca-certificates
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MYREL="`lsb_release -c | grep ^Codename | awk '{print $2}'`"
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echo "deb [signed-by=/usr/share/keyrings/llvm.gpg] http://apt.llvm.org/${MYREL}/ llvm-toolchain-${MYREL}-${CLANG_VER} main" > /etc/apt/sources.list.d/llvm.list
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curl https://apt.llvm.org/llvm-snapshot.gpg.key | gpg --dearmor > /usr/share/keyrings/llvm.gpg
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${APT_UPDATE}
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apt-mark hold ca-certificates
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}
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install_clang

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