Add arcade infrastructure

eng/common/darc-init.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+source="${BASH_SOURCE[0]}"
+
+# resolve $source until the file is no longer a symlink
+while [[ -h "$source" ]]; do
+  scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
+  source="$(readlink "$source")"
+  # if $source was a relative symlink, we need to resolve it relative to the path where the
+  # symlink file was located
+  [[ $source != /* ]] && source="$scriptroot/$source"
+done
+scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
+verbosity=m
+
+. "$scriptroot/tools.sh"
+
+function InstallDarcCli {
+  local darc_cli_package_name="microsoft.dotnet.darc"
+  local uninstall_command=`$DOTNET_INSTALL_DIR/dotnet tool uninstall $darc_cli_package_name -g`
+  local tool_list=$($DOTNET_INSTALL_DIR/dotnet tool list -g)
+  if [[ $tool_list = *$darc_cli_package_name* ]]; then
+    echo $($DOTNET_INSTALL_DIR/dotnet tool uninstall $darc_cli_package_name -g)
+  fi
+
+  ReadGlobalVersion "Microsoft.DotNet.Arcade.Sdk"
+  local toolset_version=$_ReadGlobalVersion
+
+  echo "Installing Darc CLI version $toolset_version..."
+  echo "You may need to restart your command shell if this is the first dotnet tool you have installed."
+  echo $($DOTNET_INSTALL_DIR/dotnet tool install $darc_cli_package_name --version $toolset_version -v $verbosity -g)
+}
+
+InitializeTools
+InstallDarcCli