mirror of
https://github.com/packwiz/packwiz.git
synced 2025-10-21 00:54:31 +02:00
Implement Modrinth pack exporting (fixes #34)
This commit is contained in:
comp500
243
modrinth/export.go
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243
modrinth/export.go
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@@ -0,0 +1,243 @@
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package modrinth
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import (
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"archive/zip"
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"encoding/json"
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"fmt"
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"github.com/spf13/viper"
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"os"
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"path/filepath"
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"github.com/packwiz/packwiz/core"
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"github.com/spf13/cobra"
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)
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// exportCmd represents the export command
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var exportCmd = &cobra.Command{
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Use: "export",
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Short: "Export the current modpack into a .mrpack for Modrinth",
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Args: cobra.NoArgs,
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Run: func(cmd *cobra.Command, args []string) {
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fmt.Println("Loading modpack...")
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pack, err := core.LoadPack()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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index, err := pack.LoadIndex()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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// Do a refresh to ensure files are up to date
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err = index.Refresh()
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if err != nil {
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fmt.Println(err)
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return
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}
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err = index.Write()
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if err != nil {
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fmt.Println(err)
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return
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}
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err = pack.UpdateIndexHash()
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if err != nil {
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fmt.Println(err)
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return
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}
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err = pack.Write()
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if err != nil {
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fmt.Println(err)
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return
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}
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// TODO: should index just expose indexPath itself, through a function?
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indexPath := filepath.Join(filepath.Dir(viper.GetString("pack-file")), filepath.FromSlash(pack.Index.File))
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mods := loadMods(index)
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var fileName = pack.GetPackName() + ".mrpack"
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expFile, err := os.Create(fileName)
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if err != nil {
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fmt.Printf("Failed to create zip: %s\n", err.Error())
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os.Exit(1)
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}
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exp := zip.NewWriter(expFile)
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// Add an overrides folder even if there are no files to go in it
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_, err = exp.Create("overrides/")
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if err != nil {
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fmt.Printf("Failed to add overrides folder: %s\n", err.Error())
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os.Exit(1)
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}
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// TODO: cache these (ideally with changes to pack format)
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fmt.Println("Retrieving SHA1 hashes for external mods...")
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sha1Hashes := make([]string, len(mods))
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for i, mod := range mods {
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if mod.Download.HashFormat == "sha1" {
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sha1Hashes[i] = mod.Download.Hash
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} else {
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// Hash format for this mod isn't SHA1 - and the Modrinth pack format requires it; so get it by downloading the file
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h, stringer, err := core.GetHashImpl("sha1")
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if err != nil {
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panic("Failed to get sha1 hash implementation")
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}
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err = mod.DownloadFile(h)
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if err != nil {
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fmt.Printf("Error downloading mod file %s: %s\n", mod.Download.URL, err.Error())
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// TODO: exit(1)?
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continue
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}
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sha1Hashes[i] = stringer.HashToString(h.Sum(nil))
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fmt.Printf("Retrieved SHA1 hash for %s successfully\n", mod.Download.URL)
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}
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}
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manifestFile, err := exp.Create("modrinth.index.json")
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if err != nil {
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_ = exp.Close()
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_ = expFile.Close()
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fmt.Println("Error creating manifest: " + err.Error())
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os.Exit(1)
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}
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manifestFiles := make([]PackFile, len(mods))
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for i, mod := range mods {
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pathForward, err := filepath.Rel(filepath.Dir(indexPath), mod.GetDestFilePath())
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if err != nil {
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fmt.Printf("Error resolving mod file: %s\n", err.Error())
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// TODO: exit(1)?
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continue
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}
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path := filepath.ToSlash(pathForward)
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hashes := make(map[string]string)
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hashes["sha1"] = sha1Hashes[i]
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// Create env options based on configured optional/side
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var envInstalled string
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if mod.Option != nil && mod.Option.Optional {
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envInstalled = "optional"
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} else {
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envInstalled = "required"
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}
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var clientEnv, serverEnv string
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if mod.Side == core.UniversalSide {
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clientEnv = envInstalled
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serverEnv = envInstalled
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} else if mod.Side == core.ClientSide {
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clientEnv = envInstalled
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serverEnv = "unsupported"
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} else if mod.Side == core.ServerSide {
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clientEnv = "unsupported"
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serverEnv = envInstalled
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}
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manifestFiles[i] = PackFile{
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Path: path,
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Hashes: hashes,
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Env: &struct {
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Client string `json:"client"`
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Server string `json:"server"`
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}{Client: clientEnv, Server: serverEnv},
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Downloads: []string{mod.Download.URL},
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}
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}
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dependencies := make(map[string]string)
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dependencies["minecraft"], err = pack.GetMCVersion()
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if err != nil {
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_ = exp.Close()
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_ = expFile.Close()
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fmt.Println("Error creating manifest: " + err.Error())
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os.Exit(1)
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}
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if fabricVersion, ok := pack.Versions["fabric"]; ok {
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dependencies["fabric-loader"] = fabricVersion
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} else if forgeVersion, ok := pack.Versions["forge"]; ok {
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dependencies["forge"] = forgeVersion
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}
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manifest := Pack{
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FormatVersion: 1,
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Game: "minecraft",
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VersionID: pack.Version,
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Name: pack.Name,
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Files: manifestFiles,
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Dependencies: dependencies,
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}
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w := json.NewEncoder(manifestFile)
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w.SetIndent("", " ") // Documentation uses 4 spaces
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err = w.Encode(manifest)
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if err != nil {
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_ = exp.Close()
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_ = expFile.Close()
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fmt.Println("Error writing manifest: " + err.Error())
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os.Exit(1)
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}
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for _, v := range index.Files {
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if !v.MetaFile {
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// Save all non-metadata files into the zip
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path, err := filepath.Rel(filepath.Dir(indexPath), index.GetFilePath(v))
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if err != nil {
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fmt.Printf("Error resolving file: %s\n", err.Error())
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// TODO: exit(1)?
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continue
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}
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file, err := exp.Create(filepath.ToSlash(filepath.Join("overrides", path)))
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if err != nil {
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fmt.Printf("Error creating file: %s\n", err.Error())
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// TODO: exit(1)?
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continue
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}
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err = index.SaveFile(v, file)
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if err != nil {
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fmt.Printf("Error copying file: %s\n", err.Error())
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// TODO: exit(1)?
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continue
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}
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}
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}
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err = exp.Close()
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if err != nil {
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fmt.Println("Error writing export file: " + err.Error())
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os.Exit(1)
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}
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err = expFile.Close()
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if err != nil {
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fmt.Println("Error writing export file: " + err.Error())
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os.Exit(1)
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}
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fmt.Println("Modpack exported to " + fileName)
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fmt.Println("Make sure you remove this file before running packwiz refresh, or add it to .packwizignore")
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},
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}
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func loadMods(index core.Index) []core.Mod {
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modPaths := index.GetAllMods()
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mods := make([]core.Mod, len(modPaths))
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i := 0
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fmt.Println("Reading mod files...")
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for _, v := range modPaths {
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modData, err := core.LoadMod(v)
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if err != nil {
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fmt.Printf("Error reading mod file %s: %s\n", v, err.Error())
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// TODO: exit(1)?
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continue
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}
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mods[i] = modData
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i++
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}
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return mods[:i]
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}
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func init() {
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modrinthCmd.AddCommand(exportCmd)
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}
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22
modrinth/pack.go
Normal file
22
modrinth/pack.go
Normal file
@@ -0,0 +1,22 @@
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package modrinth
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type Pack struct {
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FormatVersion int `json:"formatVersion"`
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Game string `json:"game"`
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VersionID string `json:"versionId"`
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Name string `json:"name"`
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// TODO: implement Summary
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// Summary string `json:"summary"`
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Files []PackFile `json:"files"`
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Dependencies map[string]string `json:"dependencies"`
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}
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type PackFile struct {
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Path string `json:"path"`
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Hashes map[string]string `json:"hashes"`
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Env *struct {
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Client string `json:"client"`
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Server string `json:"server"`
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} `json:"env"`
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Downloads []string `json:"downloads"`
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}
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