[Ubuntu] Implement new directories hierarchy (#8627)

images/ubuntu/scripts/build/clang.sh

@@ -0,0 +1,40 @@
+#!/bin/bash -e
+################################################################################
+##  File:  clang.sh
+##  Desc:  Installs Clang compiler
+################################################################################
+
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/install.sh
+
+function InstallClang {
+    local version=$1
+
+    echo "Installing clang-$version..."
+    apt-get install -y "clang-$version" "lldb-$version" "lld-$version" "clang-format-$version" "clang-tidy-$version"
+}
+
+function SetDefaultClang {
+    local version=$1
+
+    echo "Make Clang ${version} default"
+    update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-${version} 100
+    update-alternatives --install /usr/bin/clang clang /usr/bin/clang-${version} 100
+    update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-${version} 100
+    update-alternatives --install /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-${version} 100
+    update-alternatives --install /usr/bin/run-clang-tidy run-clang-tidy /usr/bin/run-clang-tidy-${version} 100
+}
+
+versions=$(get_toolset_value '.clang.versions[]')
+default_clang_version=$(get_toolset_value '.clang.default_version')
+
+for version in ${versions[*]}; do
+    if [[ $version != $default_clang_version ]]; then
+        InstallClang $version
+    fi
+done
+
+InstallClang $default_clang_version
+SetDefaultClang $default_clang_version
+
+invoke_tests "Tools" "clang"