Move update-dependencies under build_projects.

build_projects/update-dependencies/update-dependencies.ps1

@@ -0,0 +1,57 @@
+#
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+param(
+    [string[]]$Targets=@("Default"),
+    [switch]$Help)
+
+if($Help)
+{
+    Write-Host "Usage: .\update-dependencies.ps1 [-Targets <TARGETS...>]"
+    Write-Host ""
+    Write-Host "Options:"
+    Write-Host "  -Targets <TARGETS...>              Comma separated build targets to run (UpdateFiles, PushPR; Default is everything)"
+    Write-Host "  -Help                              Display this help message"
+    exit 0
+}
+
+# Use a repo-local install directory (but not the artifacts directory because that gets cleaned a lot
+if (!$env:DOTNET_INSTALL_DIR)
+{
+    $env:DOTNET_INSTALL_DIR="$PSScriptRoot\..\.dotnet_stage0\Windows\$Architecture"
+}
+
+# Install a stage 0
+Write-Host "Installing .NET Core CLI Stage 0"
+& "$PSScriptRoot\obtain\dotnet-install.ps1" -Architecture x64
+
+# Put the stage0 on the path
+$env:PATH = "$env:DOTNET_INSTALL_DIR;$env:PATH"
+
+$appPath = "$PSScriptRoot\update-dependencies"
+
+# Restore the build_projects
+Write-Host "Restoring Microsoft.DotNet.Cli.Build.Framework..."
+pushd $PSScriptRoot\..\build_projects\Microsoft.DotNet.Cli.Build.Framework
+dotnet restore --infer-runtimes
+if($LASTEXITCODE -ne 0) { throw "Failed to restore" }
+popd
+
+# Restore update-dependencies
+pushd $appPath
+dotnet restore --infer-runtimes
+if($LASTEXITCODE -ne 0) { throw "Failed to restore" }
+popd
+
+# Publish the app
+Write-Host "Compiling App $appPath..."
+dotnet publish "$appPath" -o "$appPath\bin" --framework netcoreapp1.0
+if($LASTEXITCODE -ne 0) { throw "Failed to compile build scripts" }
+
+# Run the app
+Write-Host "Invoking App $appPath..."
+Write-Host " Configuration: $env:CONFIGURATION"
+& "$appPath\bin\update-dependencies.exe" @Targets
+if($LASTEXITCODE -ne 0) { throw "Build failed" }