Pack-Azure-Functions.ps1

Param
(
    [String]
    $OutputDirectory = $(Throw "The output directory was not specified."),

    [String]
    $PackDirectory = $(Throw "The pack directory was not specified.")
)
try {
    Write-Output "Packaging azure functions..."
    Write-Output "Output directory: $OutputDirectory"
    Write-Output "Pack directory:   $PackDirectory"

	if (!(Test-Path $OutputDirectory)) {
		Throw "$OutputDirectory directory does not exist."
	}

	if (!(Test-Path $PackDirectory)) {
		Throw "$PackDirectory directory does not exist."
	}

	$functionsDirectory = "$PackDirectory\Functions"

    New-Item -ItemType Directory -Force -Path "$functionsDirectory"
    
    if (!(Test-Path "$functionsDirectory\host.json")) {
        "{}" | Out-File -FilePath "$functionsDirectory\host.json"
    }

    Get-ChildItem "$OutputDirectory" -Recurse -Filter function.json |
        Foreach-Object {
        $dllDirectory = $_.Directory.Parent.FullName
		$functionName = $_.Directory.Name
		$functionJsonFile = $_.FullName
		$binDirectory = "$functionsDirectory\$functionName\bin"

		New-Item -ItemType Directory -Force -Path "$binDirectory"
		Copy-Item $functionJsonFile "$functionsDirectory\$functionName"
		Copy-Item "$dllDirectory\*.dll" $binDirectory -Force
		Copy-Item "$dllDirectory\*.config" $binDirectory -Force
		Copy-Item "$dllDirectory\$functionName\*.fsx" "$functionsDirectory\$functionName" -Force
    }

    $exitCode = 0
}
catch {
    Write-Error "*** $_"

    $exitCode = 1
}
finally {
    Exit $exitCode
}