Completed download implementation for Modrinth export

cmdshared/downloadutil.go

@@ -1,8 +1,10 @@
 package cmdshared
 
 import (
+	"archive/zip"
 	"fmt"
 	"github.com/packwiz/packwiz/core"
+	"io"
 	"os"
 	"path/filepath"
 )
@@ -26,3 +28,48 @@ func ListManualDownloads(session core.DownloadSession) {
 		os.Exit(1)
 	}
 }
+
+func AddToZip(dl core.CompletedDownload, exp *zip.Writer, dir string, indexPath string) bool {
+	if dl.Error != nil {
+		fmt.Printf("Download of %s (%s) failed: %v\n", dl.Mod.Name, dl.Mod.FileName, dl.Error)
+		return false
+	}
+	for warning := range dl.Warnings {
+		fmt.Printf("Warning for %s (%s): %v\n", dl.Mod.Name, dl.Mod.FileName, warning)
+	}
+
+	path, err := filepath.Rel(filepath.Dir(indexPath), dl.Mod.GetDestFilePath())
+	if err != nil {
+		fmt.Printf("Error resolving mod file: %v\n", err)
+		return false
+	}
+	modFile, err := exp.Create(filepath.ToSlash(filepath.Join(dir, path)))
+	if err != nil {
+		fmt.Printf("Error creating mod file %s: %v\n", path, err)
+		return false
+	}
+	_, err = io.Copy(modFile, dl.File)
+	if err != nil {
+		fmt.Printf("Error copying file %s: %v\n", path, err)
+		return false
+	}
+	err = dl.File.Close()
+	if err != nil {
+		fmt.Printf("Error closing file %s: %v\n", path, err)
+		return false
+	}
+
+	fmt.Printf("%s (%s) added to zip\n", dl.Mod.Name, dl.Mod.FileName)
+	return true
+}
+
+func PrintDisclaimer(isCf bool) {
+	fmt.Println("Disclaimer: you are responsible for ensuring you comply with ALL the licenses, or obtain appropriate permissions, for the files \"added to zip\" below")
+	if isCf {
+		fmt.Println("Note that mods bundled within a CurseForge pack must be in the Approved Non-CurseForge Mods list")
+		fmt.Println("packwiz is currently unable to match metadata between mod sites - if any of these are available from CurseForge you should change them to use CurseForge metadata (e.g. by reinstalling them using the cf commands)")
+	} else {
+		fmt.Println("packwiz is currently unable to match metadata between mod sites - if any of these are available from Modrinth you should change them to use Modrinth metadata (e.g. by reinstalling them using the mr commands)")
+	}
+	fmt.Println()
+}