Merge and separate files with PowerShell scripts.

merge-files.ps1

param(
    [Parameter(Mandatory = $true)]
    [string]$rootPath = "",

    [Parameter(Mandatory = $true)]
    [string]$outputFile = "",

    [Parameter(Mandatory = $false)]
    [string]$filter = "*"
)

Write-Host $rootPath

$rootPath = Resolve-Path -Path $rootPath

# Clear the content of the output file if it already exists
if (Test-Path $outputFile) {
    Clear-Content $outputFile
}

Write-Host $rootPath

# Get all files under the root path, including subdirectories
$files = Get-ChildItem -Path $rootPath -Recurse -Filter $filter

foreach ($file in $files) {
    # Construct the header with the file path relative to the root path
    $relativePath = $file.FullName.Substring($rootPath.Length)
    $header = "--- " + $relativePath.TrimStart('\') + " ---`n"

    # Output the header to the output file
    Add-Content -Path $outputFile -Value $header

    # Read the content of the current file and append it to the output file
    $content = Get-Content -Path $file.FullName
    Add-Content -Path $outputFile -Value $content

    # Add an extra newline after the content for separation, if desired
    Add-Content -Path $outputFile -Value "`n"
}

# Notify the user that the script has finished
Write-Host "All files have been concatenated into $outputFile"

separate-files.ps1

param(
    [Parameter(Mandatory=$true)]
    [string]$mergedFile, # The path to the merged file

    [Parameter(Mandatory=$true)]
    [string]$outputFolder # The path to the output folder where files will be separated
)

# Check if the merged file exists
if (-not (Test-Path -Path $mergedFile)) {
    Write-Error "Merged file does not exist."
    return
}

# Check if the output folder exists, if not, create it
if (-not (Test-Path -Path $outputFolder)) {
    Write-Host "Output folder does not exist. Creating it..."
    New-Item -ItemType Directory -Path $outputFolder
}

# Read the merged file content
$mergedContent = Get-Content -Path $mergedFile

# Initialize variables to keep track of the current file content and path
$currentFilePath = $null
$currentFileContent = @()

foreach ($line in $mergedContent) {
    if ($line -match "^---\s+(.+)\s+---$") {
        # If there's an existing file path, it means we've hit a new file header
        # So, we need to save the current file content before starting a new one
        if ($currentFilePath) {
            $fullPath = Join-Path -Path $outputFolder -ChildPath $currentFilePath
            $dirPath = Split-Path -Path $fullPath
            if (-not (Test-Path -Path $dirPath)) {
                New-Item -ItemType Directory -Path $dirPath
            }
            Set-Content -Path $fullPath -Value $currentFileContent
        }

        # Start a new file with the new path
        $currentFilePath = $matches[1]
        $currentFileContent = @()
    } else {
        # Add the current line to the file content, excluding the separator line
        if ($line -ne "") {
            $currentFileContent += $line
        }
    }
}

# Save the last file after the loop ends
if ($currentFilePath) {
    $fullPath = Join-Path -Path $outputFolder -ChildPath $currentFilePath
    $dirPath = Split-Path -Path $fullPath
    if (-not (Test-Path -Path $dirPath)) {
        New-Item -ItemType Directory -Path $dirPath
    }
    Set-Content -Path $fullPath -Value $currentFileContent
}

Write-Host "Files have been separated into the output folder: $outputFolder"