$lineBreak="`r`n"
$noticeTemplate="// Copyright (c) Microsoft. All rights reserved.$lineBreak// Licensed under the MIT license. See LICENSE file in the project root for full license information.$lineBreak$lineBreak"
$tokenToReplace=[regex]::Escape("[FileName]")

FunctionCreateFileSpecificNotice($sourcePath){
$fileName=Split-Path$sourcePath-Leaf
$fileSpecificNotice=$noticeTemplate-replace$tokenToReplace,$fileName
return$fileSpecificNotice
}

FunctionSourceFileContainsNotice($sourcePath){
$copyrightSnippet=[regex]::Escape("// Copyright (c) Microsoft")

$fileSpecificNotice=CreateFileSpecificNotice($sourcePath)
$arrMatchResults=Get-Content$sourcePath|Select-String$copyrightSnippet

if($arrMatchResults-ne$null-and$arrMatchResults.count-gt0){
return$true
}
else{
return$false
}
}

FunctionAddHeaderToSourceFile($sourcePath){
# "Source path is: $sourcePath"

$containsNotice=SourceFileContainsNotice($sourcePath)
# "Contains notice: $containsNotice"

if($containsNotice){
#"Source file already contains notice -- not adding"
}
else{
#"Source file does not contain notice -- adding"
$noticeToInsert=CreateFileSpecificNotice($sourcePath)

$fileLines=(Get-Content$sourcePath)-join$lineBreak

$content=$noticeToInsert+$fileLines+$lineBreak

$content|Out-File$sourcePath-Encodingutf8

}
}

$scriptPath=split-path-parent$MyInvocation.MyCommand.Definition
$parent=(get-item$scriptPath).Parent.FullName
$startingPath="$parent\src"
Get-ChildItem$startingPath\*.cs-Recurse|SelectFullName|Foreach-Object{AddHeaderToSourceFile($_.FullName)}
Get-ChildItem$startingPath\*.fs-Recurse|SelectFullName|Foreach-Object{AddHeaderToSourceFile($_.FullName)}