[Ubuntu] Implement new directories hierarchy (#8627)

images/ubuntu/scripts/build/dotnetcore-sdk.sh

@@ -0,0 +1,98 @@
+#!/bin/bash -e
+################################################################################
+##  File:  dotnetcore-sdk.sh
+##  Desc:  Installs .NET Core SDK
+################################################################################
+
+source $HELPER_SCRIPTS/etc-environment.sh
+source $HELPER_SCRIPTS/install.sh
+source $HELPER_SCRIPTS/os.sh
+
+# Ubuntu 20 doesn't support EOL versions
+LATEST_DOTNET_PACKAGES=$(get_toolset_value '.dotnet.aptPackages[]')
+DOTNET_VERSIONS=$(get_toolset_value '.dotnet.versions[]')
+DOTNET_TOOLS=$(get_toolset_value '.dotnet.tools[].name')
+
+# Disable telemetry
+export DOTNET_CLI_TELEMETRY_OPTOUT=1
+
+# There is a versions conflict, that leads to
+# Microsoft <-> Canonical repos dependencies mix up.
+# Give Microsoft's repo higher priority to avoid collisions.
+# See: https://github.com/dotnet/core/issues/7699
+
+cat << EOF > /etc/apt/preferences.d/dotnet
+Package: *net*
+Pin: origin packages.microsoft.com
+Pin-Priority: 1001
+EOF
+
+apt-get update
+
+for latest_package in ${LATEST_DOTNET_PACKAGES[@]}; do
+    echo "Determing if .NET Core ($latest_package) is installed"
+    if ! IsPackageInstalled $latest_package; then
+        echo "Could not find .NET Core ($latest_package), installing..."
+        apt-get install $latest_package -y
+    else
+        echo ".NET Core ($latest_package) is already installed"
+    fi
+done
+
+rm /etc/apt/preferences.d/dotnet
+
+apt-get update
+
+# Get list of all released SDKs from channels which are not end-of-life or preview
+sdks=()
+for version in ${DOTNET_VERSIONS[@]}; do
+    release_url="https://dotnetcli.blob.core.windows.net/dotnet/release-metadata/${version}/releases.json"
+    download_with_retries "${release_url}" "." "${version}.json"
+    releases=$(cat "./${version}.json")
+    if [[ $version == "6.0" ]]; then
+        sdks=("${sdks[@]}" $(echo "${releases}" | jq -r 'first(.releases[].sdks[]?.version | select(contains("preview") or contains("rc") | not))'))
+    else
+        sdks=("${sdks[@]}" $(echo "${releases}" | jq -r '.releases[].sdk.version | select(contains("preview") or contains("rc") | not)'))
+        sdks=("${sdks[@]}" $(echo "${releases}" | jq -r '.releases[].sdks[]?.version | select(contains("preview") or contains("rc") | not)'))
+    fi
+    rm ./${version}.json
+done
+
+sortedSdks=$(echo ${sdks[@]} | tr ' ' '\n' | sort -r | uniq -w 5)
+
+extract_dotnet_sdk() {
+    local ARCHIVE_NAME="$1"
+    set -e
+    dest="./tmp-$(basename -s .tar.gz $ARCHIVE_NAME)"
+    echo "Extracting $ARCHIVE_NAME to $dest"
+    mkdir "$dest" && tar -C "$dest" -xzf "$ARCHIVE_NAME"
+    rsync -qav --remove-source-files "$dest/shared/" /usr/share/dotnet/shared/
+    rsync -qav --remove-source-files "$dest/host/" /usr/share/dotnet/host/
+    rsync -qav --remove-source-files "$dest/sdk/" /usr/share/dotnet/sdk/
+    rm -rf "$dest" "$ARCHIVE_NAME"
+}
+
+# Download/install additional SDKs in parallel
+export -f download_with_retries
+export -f extract_dotnet_sdk
+
+parallel --jobs 0 --halt soon,fail=1 \
+    'url="https://dotnetcli.blob.core.windows.net/dotnet/Sdk/{}/dotnet-sdk-{}-linux-x64.tar.gz"; \
+    download_with_retries $url' ::: "${sortedSdks[@]}"
+
+find . -name "*.tar.gz" | parallel --halt soon,fail=1 'extract_dotnet_sdk {}'
+
+# NuGetFallbackFolder at /usr/share/dotnet/sdk/NuGetFallbackFolder is warmed up by smoke test
+# Additional FTE will just copy to ~/.dotnet/NuGet which provides no benefit on a fungible machine
+setEtcEnvironmentVariable DOTNET_SKIP_FIRST_TIME_EXPERIENCE 1
+setEtcEnvironmentVariable DOTNET_NOLOGO 1
+setEtcEnvironmentVariable DOTNET_MULTILEVEL_LOOKUP 0
+prependEtcEnvironmentPath '$HOME/.dotnet/tools'
+
+# install dotnet tools
+for dotnet_tool in ${DOTNET_TOOLS[@]}; do
+    echo "Installing dotnet tool $dotnet_tool"
+    dotnet tool install $dotnet_tool --tool-path '/etc/skel/.dotnet/tools'
+done
+
+invoke_tests "DotnetSDK"