UnityPackageArchiver.psm1
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<# .Synopsis import Unity packages. .PARAMETER UnityPackagePath path to .unitypackage file .PARAMETER OutputDir output directory path(default: same directory as .unitypackage file) .EXAMPLE Import-UnityPackage -UnityPackagePath "C:\path\to\package.unitypackage" -OutputDir "C:\output\directory" #> function Import-UnityPackage { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string]$UnityPackagePath, [Parameter(Mandatory = $false)] [string]$OutputDir = "" ) # Validate if (-not (Get-Command tar -ErrorAction SilentlyContinue)) { throw "The 'tar' command is not available. Please ensure that 'tar' is installed and accessible in your PATH." } if (-not (Test-Path -Path $UnityPackagePath)) { throw "The input file does not exist: $UnityPackagePath" } $unityPackageExtension = [System.IO.Path]::GetExtension($UnityPackagePath) if ($unityPackageExtension -ne ".unitypackage") { throw "The input file must be a .unitypackage file." } # Setup if (-not $OutputDir) { $OutputDir = [System.IO.Path]::GetDirectoryName($UnityPackagePath) } $tempDirPath = Join-Path -Path $OutputDir -ChildPath "temp" if (Test-Path -Path $tempDirPath) { Remove-Item -Path $tempDirPath -Recurse -Force } New-Item -ItemType Directory -Path $tempDirPath if (-not (Test-Path -Path $OutputDir)) { New-Item -ItemType Directory -Path $OutputDir } # .tar.gz tar -xzf $UnityPackagePath -C $tempDirPath # Mapping $mapping = @{} Get-ChildItem -Path $tempDirPath | ForEach-Object { $dirPath = $_.FullName $guid = $_.Name if (Test-Path -Path $dirPath -PathType Container) { $path = '' Get-ChildItem -Path $dirPath | ForEach-Object { if ($_.Name -eq "pathname") { $path = Get-Content -Path $_.FullName -Encoding utf8 | Select-Object -First 1 } } $mapping[$guid] = $path } } # File Move foreach ($guid in $mapping.Keys) { $path = Split-Path -Path $mapping[$guid] -Parent $fileName = Split-Path -Path $mapping[$guid] -Leaf $metaFileName = "${fileName}.meta" $destDir = Join-Path $OutputDir -ChildPath $path $assetFile = Join-Path $destDir -ChildPath $fileName $metaFile = Join-Path $destDir -ChildPath $metaFileName $source = Join-Path -Path $tempDirPath -ChildPath "${guid}/asset" $metaSource = Join-Path -Path $tempDirPath -ChildPath "${guid}/asset.meta" if (-not (Test-Path -Path $destDir)) { New-Item -ItemType Directory -Path $destDir } if (Test-Path -Path $source) { Move-Item -Path $source -Destination $assetFile -Force } if (Test-Path -Path $metaSource) { Move-Item -Path $metaSource -Destination $metaFile -Force } Write-Output "$guid => $($mapping[$guid])" } Remove-Item -Path $tempDirPath -Recurse -Force } <# .Synopsis Export .unitypackage file. .PARAMETER OutputFilePath The path where the .unitypackage file will be saved. .PARAMETER TargetFiles The files to be included in the .unitypackage file. (Do not include .meta) .EXAMPLE Export-UnityPackage -OutputFilePath "C:\path\to\output.unitypackage" -TargetFiles "C:\path\to\Assets\MyAsset.prefab", "C:\path\to\Assets\MyScript.cs" #> function Export-UnityPackage { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string]$OutputFilePath, [Parameter(Mandatory = $true)] [string[]]$TargetFiles ) $outputFileExtension = [System.IO.Path]::GetExtension($OutputFilePath) if ($outputFileExtension -ne ".unitypackage") { throw "The output file must be a .unitypackage file." } if ($TargetFiles.Count -eq 0) { throw "The target files are empty." } $outputDirPath = [System.IO.Path]::GetDirectoryName($OutputFilePath) $tempDirPath = Join-Path -Path $outputDirPath -ChildPath "temp" if (Test-Path -Path $tempDirPath) { Remove-Item -Path $tempDirPath -Recurse -Force } New-Item -ItemType Directory -Path $tempDirPath # NOTE: "preview.png" is not supported # "preview.png" is the thumbnail displayed on the Asset Store website. $mapping = @{} foreach ($targetFilePath in $TargetFiles) { # include file $targetFileMetaPath = "${targetFilePath}.meta" if (-not (Test-Path -Path $targetFilePath)) { throw "The target file does not exist: $targetFilePath" } if (-not (Test-Path -Path $targetFileMetaPath)) { throw "The target file's meta does not exist: $targetFileMetaPath" } $guid = '' Get-Content -Path $targetFileMetaPath -Encoding utf8 | ForEach-Object { if ($_ -match "guid: ([0-9a-fA-F]{32})") { $guid = $Matches[1] } } if (-not $guid) { throw "The target file's meta does not contain a guid: $targetFileMetaPath" } $mapping[$guid] = $targetFilePath # include directory $currentDirPath = Split-Path -Path $targetFilePath -Parent $currentDirName = Split-Path -Path $currentDirPath -Leaf while ($currentDirName -ne "Assets" -and $currentDirPath -ne [System.IO.Path]::GetPathRoot($currentDirPath)) { $parentDirPath = Split-Path -Path $currentDirPath -Parent $parentDirName = Split-Path -Path $parentDirPath -Leaf $metaPath = Join-Path -Path $parentDirPath -ChildPath "${currentDirName}.meta" if (Test-Path -Path $metaPath) { $dirGuid = '' Get-Content -Path $metaPath -Encoding utf8 | ForEach-Object { if ($_ -match "guid: ([0-9a-fA-F]{32})") { $dirGuid = $Matches[1] } } if (-not $dirGuid) { throw "The target file's meta does not contain a guid: $metaPath" } $mapping[$dirGuid] = $currentDirPath } $currentDirPath = $parentDirPath $currentDirName = $parentDirName } } foreach ($guid in $mapping.Keys) { $dirPath = Join-Path -Path $tempDirPath -ChildPath $guid New-Item -ItemType Directory -Path $dirPath $sourceFile = $mapping[$guid] $sourceMetaFile = "${sourceFile}.meta" $assetPath = Join-Path -Path $dirPath -ChildPath "asset" $metaPath = Join-Path -Path $dirPath -ChildPath "asset.meta" $pathnamePath = Join-Path -Path $dirPath -ChildPath "pathname" if (Test-Path -Path $sourceFile -PathType Leaf) { Copy-Item -Path $sourceFile -Destination $assetPath -Force } Copy-Item -Path $sourceMetaFile -Destination $metaPath -Force # NOTE: Extracts the first matching ‘Assets’ and subsequent parts from the Path. $path = $mapping[$guid] -replace '.*?(Assets)', 'Assets' Set-Content -Path $pathnamePath -Value $path -Encoding utf8 Write-Output "$guid => $($mapping[$guid])" } tar -czf $OutputFilePath -C $tempDirPath . Remove-Item -Path $tempDirPath -Recurse -Force } |