Update dependencies from https://github.com/dotnet/arcade build 20190619.1 (#2527)

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19319.1

eng/common/internal-feed-operations.sh

@@ -0,0 +1,142 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Sets VSS_NUGET_EXTERNAL_FEED_ENDPOINTS based on the "darc-int-*" feeds defined in NuGet.config. This is needed
+# in build agents by CredProvider to authenticate the restore requests to internal feeds as specified in
+# https://github.com/microsoft/artifacts-credprovider/blob/0f53327cd12fd893d8627d7b08a2171bf5852a41/README.md#environment-variables. 
+# This should ONLY be called from identified internal builds
+function SetupCredProvider {
+  local authToken=$1
+  
+  # Install the Cred Provider NuGet plugin
+  echo "Setting up Cred Provider NuGet plugin in the agent..."...
+  echo "Getting 'installcredprovider.ps1' from 'https://github.com/microsoft/artifacts-credprovider'..."
+
+  local url="https://raw.githubusercontent.com/microsoft/artifacts-credprovider/master/helpers/installcredprovider.sh"  
+  
+  echo "Writing the contents of 'installcredprovider.ps1' locally..."
+  local installcredproviderPath="installcredprovider.sh"
+  if command -v curl > /dev/null; then
+    curl $url > "$installcredproviderPath"
+  else   
+    wget -q -O "$installcredproviderPath" "$url"
+  fi
+  
+  echo "Installing plugin..."
+  . "$installcredproviderPath"
+  
+  echo "Deleting local copy of 'installcredprovider.sh'..."
+  rm installcredprovider.sh
+
+  if [ ! -d "$HOME/.nuget/plugins" ]; then
+    echo "CredProvider plugin was not installed correctly!"
+    ExitWithExitCode 1  
+  else 
+    echo "CredProvider plugin was installed correctly!"
+  fi
+
+  # Then, we set the 'VSS_NUGET_EXTERNAL_FEED_ENDPOINTS' environment variable to restore from the stable 
+  # feeds successfully
+
+  local nugetConfigPath="$repo_root/NuGet.config"
+
+  if [ ! "$nugetConfigPath" ]; then
+    echo "NuGet.config file not found in repo's root!"
+    ExitWithExitCode 1  
+  fi
+  
+  local endpoints='['
+  local nugetConfigPackageValues=`cat "$nugetConfigPath" | grep "key=\"darc-int-"`
+  local pattern="value=\"(.*)\""
+
+  for value in $nugetConfigPackageValues 
+  do
+    if [[ $value =~ $pattern ]]; then
+      local endpoint="${BASH_REMATCH[1]}"  
+      endpoints+="{\"endpoint\": \"$endpoint\", \"password\": \"$authToken\"},"
+    fi
+  done
+  
+  endpoints=${endpoints%?}
+  endpoints+=']'
+
+  if [ ${#endpoints} -gt 2 ]; then 
+      # Create the JSON object. It should look like '{"endpointCredentials": [{"endpoint":"http://example.index.json", "username":"optional", "password":"accesstoken"}]}'
+      local endpointCredentials="{\"endpointCredentials\": "$endpoints"}"
+
+      echo "##vso[task.setvariable variable=VSS_NUGET_EXTERNAL_FEED_ENDPOINTS]$endpointCredentials"
+      echo "##vso[task.setvariable variable=NUGET_CREDENTIALPROVIDER_SESSIONTOKENCACHE_ENABLED]False"
+  else
+    echo "No internal endpoints found in NuGet.config"
+  fi
+} 
+
+# Workaround for https://github.com/microsoft/msbuild/issues/4430
+function InstallDotNetSdkAndRestoreArcade {
+  local dotnetTempDir="$repo_root/dotnet"
+  local dotnetSdkVersion="2.1.507" # After experimentation we know this version works when restoring the SDK (compared to 3.0.*)
+  local restoreProjPath="$repo_root/eng/common/restore.proj"
+  
+  echo "Installing dotnet SDK version $dotnetSdkVersion to restore Arcade SDK..."
+  echo "<Project Sdk=\"Microsoft.DotNet.Arcade.Sdk\"/>" > "$restoreProjPath"
+  
+  InstallDotNetSdk "$dotnetTempDir" "$dotnetSdkVersion"
+
+  local res=`$dotnetTempDir/dotnet restore $restoreProjPath`
+  echo "Arcade SDK restored!"
+
+  # Cleanup
+  if [ "$restoreProjPath" ]; then
+    rm "$restoreProjPath"
+  fi
+
+  if [ "$dotnetTempDir" ]; then
+    rm -r $dotnetTempDir
+  fi
+}
+
+source="${BASH_SOURCE[0]}"
+operation=''
+authToken=''
+repoName=''
+
+while [[ $# > 0 ]]; do
+  opt="$(echo "$1" | awk '{print tolower($0)}')"
+  case "$opt" in
+    --operation)
+      operation=$2
+      shift
+      ;;
+    --authtoken)
+      authToken=$2
+      shift
+      ;;
+    *)
+      echo "Invalid argument: $1"
+      usage
+      exit 1
+      ;;
+  esac
+
+  shift
+done
+
+while [[ -h "$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 )"
+
+. "$scriptroot/tools.sh"
+
+if [ "$operation" = "setup" ]; then
+  SetupCredProvider $authToken
+elif [ "$operation" = "install-restore" ]; then
+  InstallDotNetSdkAndRestoreArcade
+else
+  echo "Unknown operation '$operation'!"
+fi