[vcpkg ci] upload diff from clang-format to artifacts (#15141)

* [vcpkg ci] upload diff from clang-format to artifacts

this allows people who do not have access to clang-format to format their code via diff

1 files changed, 49 insertions, 0 deletions

diff --git a/scripts/azure-pipelines/Format-CxxCode.ps1 b/scripts/azure-pipelines/Format-CxxCode.ps1
new file mode 100644
index 000000000..a20a9ce0b
--- /dev/null
+++ b/scripts/azure-pipelines/Format-CxxCode.ps1
@@ -0,0 +1,49 @@
+[CmdletBinding()]
+Param(
+    [Parameter(Mandatory=$True)]
+    [string]$Root
+)
+
+$Root = Resolve-Path -LiteralPath $Root
+
+$clangFormat = Get-Command 'clang-format' -ErrorAction 'SilentlyContinue'
+if ($null -ne $clangFormat)
+{
+    $clangFormat = $clangFormat.Source
+}
+
+if ($IsWindows)
+{
+    if ([String]::IsNullOrEmpty($clangFormat) -or -not (Test-Path $clangFormat))
+    {
+        $clangFormat = 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Tools\Llvm\x64\bin\clang-format.exe'
+    }
+    if (-not (Test-Path $clangFormat))
+    {
+        $clangFormat = 'C:\Program Files\LLVM\bin\clang-format.exe'
+    }
+}
+
+if ([String]::IsNullOrEmpty($clangFormat) -or -not (Test-Path $clangFormat))
+{
+    Write-Error 'clang-format not found; is it installed?'
+    throw
+}
+
+$toolsrc = Get-Item "$Root/toolsrc"
+Push-Location $toolsrc
+
+try
+{
+    $files = Get-ChildItem -Recurse -LiteralPath "$toolsrc/src" -Filter '*.cpp'
+    $files += Get-ChildItem -Recurse -LiteralPath "$toolsrc/include/vcpkg" -Filter '*.h'
+    $files += Get-ChildItem -Recurse -LiteralPath "$toolsrc/include/vcpkg-test" -Filter '*.h'
+    $files += Get-Item "$toolsrc/include/pch.h"
+    $fileNames = $files.FullName
+
+    & $clangFormat -style=file -i @fileNames
+}
+finally
+{
+    Pop-Location
+}