dotnet-prepare

#!/bin/bash
set -e -u -x -o pipefail

BASEDIR=$(pwd)
PACKAGESDIR=${BASEDIR}/local-packages

filter=()
if git -C "$(dirname "$0")" fetch --filter=tree:0 >/dev/null 2>&1; then
    filter=(--filter=tree:0)
fi

function update_nuget_config {
    gawk -f - -i inplace NuGet.config <<EOF
    /<\/packageSources>/ { if (Src) print "    <add key=\"nuget\" value=\"https://api.nuget.org/v3/index.json\" />"; Src = 0 }
    { print }
    /<packageSources>/ { Src = 1 }
    /<clear \/>/ { if (Src) print "    <add key=\"local\" value=\"${PACKAGESDIR}\" />" }
EOF
}

function install_host_sdk {
    # Already installed?
    root=$1/.dotnet
    if [ -d "$root" ]; then return; fi

    # Installer available?
    version=$(jq -r .tools.dotnet "$1/global.json")
    cache_dir=$HOME/.dotnet
    tgz_name=dotnet-sdk-$version-linux-$(uname -m).tar.gz
    tgz=$cache_dir/$tgz_name
    if [ ! -e "$tgz" ]; then
        if ! gh release download --dir "$cache_dir" --pattern "$tgz_name" "v$version"; then
            return
        fi
    fi

    # Install.
    mkdir -p "$root"
    tar -C "$root" -xf "$tgz"
}

function backport {
    # Commit that introduced the bug, or an empty string.
    fixes=$1
    # Commit or patch that fixes the bug, optionally followed by backported or
    # conflicting commits.
    commitids=$2
    if [ -n "$fixes" ] && ! git merge-base --is-ancestor "$fixes" HEAD; then
        return
    fi
    for commitid in $commitids; do
        if [ -e "$commitid" ]; then
            continue
        fi
        if git merge-base --is-ancestor "$commitid" HEAD; then
            return
        fi
    done
    for commitid in $commitids; do
        if [ -e "$commitid" ]; then
            git am "$commitid"
        else
            git cherry-pick "$commitid"
        fi
        break
    done
}

function prepare_runtime {
    pushd runtime
    git fetch "${filter[@]}"
    # [custom_attrs] Use the image's ALC instead of the default one
    # https://github.com/dotnet/runtime/pull/70346
    backport "" 32670bdf9973
    # Fix -cmakeargs option handling in build.sh
    # https://github.com/dotnet/runtime/pull/70901
    backport 643e9cf30c02 2a38e2093ab2
    # [mono] Build mono logging profiler on s390x
    # https://github.com/dotnet/runtime/pull/72049
    backport 0e800a6139f1 eaf0bb292dfa
    backport d2dff5d7e2d4 "../runtime-patches/Build-mono-logging-profiler-on-s390x.patch eaf0bb292dfa 0e800a6139f1"
    # Add cmake check for ioclt prototype
    # https://github.com/dotnet/runtime/pull/82173
    backport f478cfe83eb5 4e0ff826321d
    # Add stub for mini_is_gsharedvt_inst
    # https://github.com/dotnet/runtime/pull/82678
    backport "" 961418a93f7e
    # [mono] Invoke AssemblyLoad hooks from RuntimeAssemblyBuilder:.ctor () instead from native code.
    # https://github.com/dotnet/runtime/pull/85307
    backport 93b487ad8075 5cea3d67b9b1
    # fix runtime build failures on ppc64le
    # https://github.com/dotnet/runtime/pull/88145
    backport 910362b50c34 52bc96de5104
    # [mono] Handle enum return type when inlining CreateInstance
    # https://github.com/dotnet/runtime/pull/91008
    backport cab57d89a5d7 "f51b3979f5f4 fe64d25f43e9"
    # [mono] Fix GetCustomAttributes System.Reflection API with a custom attribute provider
    # https://github.com/dotnet/runtime/pull/94602
    backport "" 0cfad5669224
    # [mono] [imt] Don't increment vt_slot for non-virtual generic methods
    # https://github.com/dotnet/runtime/pull/94437
    backport "" "0fb7b7dd0813 141b386ee2a 6f3f5dc97ad4"
    # Persist FPU variables across try_compile passes
    # https://github.com/dotnet/runtime/pull/83206
    backport 2f1694ea116c "../runtime-patches/Fix-cmakeargs-in-corehost-and-build-native-projs.patch c22b79ae2d1b 3c126e6e42b0"
    # Make the cross-component build just another invocation of the build-runtime script
    # https://github.com/dotnet/runtime/pull/67108
    backport 51bf70e94b0c "../runtime-patches/Fix-cmakeargs-in-coreclr-proj.patch 7d562f9d2a42 2811e7c7551c"
    # https://github.com/dotnet/runtime/pull/93875
    backport 1c80769c0d6e "dc944d57c4f4 3cd64558e864"

    if [ -s ../runtime-patches/series ]; then
        rm -rf .pc
        ln -fsT ../runtime-patches patches
        quilt push -a
    fi
    popd
}

function prepare_msbuild {
    pushd msbuild
    need_msbuild=0
    git fetch
    # Enable building the net472 variant.
    if ! git merge-base --is-ancestor ceed7cab7523 HEAD; then
        git cherry-pick ceed7cab7523
        # Do not set need_msbuild: if this is the only patch we need, then the
        # downloaded binaries are good enough.
    fi
    # https://github.com/dotnet/msbuild/pull/7731
    if git merge-base --is-ancestor 67deba37040a HEAD &&
        ! git merge-base --is-ancestor 486a4599f4a5 HEAD; then
        git cherry-pick 486a4599f4a5
        need_msbuild=1
    fi
    if [ "$need_msbuild" -eq 0 ]; then
        touch .skip-build
        touch .skip-package
    fi
    popd
}

function prepare_roslyn {
    pushd roslyn
    need_roslyn=0
    # https://github.com/dotnet/roslyn/pull/57003
    if ! git merge-base --is-ancestor d6eeb64a0191 HEAD; then
        git cherry-pick d6eeb64a0191
        need_roslyn=1
    fi
    if [ "$need_roslyn" -eq 0 ]; then
        touch .skip-build
        touch .skip-package
    fi
    popd
}

function prepare_sdk {
    pushd sdk
    update_nuget_config
    # https://github.com/dotnet/sdk/pull/33682
    backport b6ca751324b8 ebc32022e152
    popd
}

function prepare_aspnetcore {
    pushd aspnetcore
    update_nuget_config
    popd
}

if [ "$#" -gt 0 ]; then
    projects=("$@")
else
    projects=(runtime msbuild roslyn sdk aspnetcore)
fi

git submodule update "${filter[@]}" --init --recursive -- "${projects[@]}"

for project in "${projects[@]}"; do
    eval "prepare_${project}"
done

for project in "${projects[@]}"; do
    install_host_sdk "$project"
done