Uses AST to split out functions from a mono-psm1

psm1_func_splitter.ps1

$psm1 = Get-Item -Path "./*.psm1"

# Parse the content to produce the AST
$ast = [System.Management.Automation.Language.Parser]::ParseFile($psm1, [ref]$null, [ref]$null)

# Find all function definitions
$functions = $ast.FindAll({
    param($node)

    $node -is [System.Management.Automation.Language.FunctionDefinitionAst]
}, $true)



foreach ($function in $functions) {
    # Extract function name
    $functionName = $function.Name

    # Find the comment-based help (if any) associated with the function
    $helpComment = $function.GetHelpContent()

    # Combine the help comment (if any) and the function's extent (its full text) to get the full function code
    $functionCode = if ($helpComment) {
        $helpComment.Extent.Text + "`n" + $function.Extent.Text
    } else {
        $function.Extent.Text
    }

    # Write the function code to its own file
    New-Item -Path "./splits/$functionName.ps1" -ItemType File -Force
    Set-Content -Path "./splits/$functionName.ps1" -Value $functionCode -Force
}