AssetPostprocessor.assetPath  

var assetPath : String

Description

The path name of the asset being imported.

// Automatically sets Textures settings upon first import and prints the 
// path from  where is being imported

class CustomImportSettings extends AssetPostprocessor {
    
    function OnPreprocessTexture() {
            Debug.Log("Importing texture to: " + assetPath);
        var importer : TextureImporter = assetImporter;
        importer.textureFormat = TextureImporterFormat.ARGB32;
        importer.isReadable = true;
        importer.mipmapEnabled = false;
    }
}