mirror of
https://github.com/packwiz/packwiz.git
synced 2025-04-19 21:16:30 +02:00
402 lines
12 KiB
Go
402 lines
12 KiB
Go
package cmd
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import (
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"bufio"
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"encoding/json"
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"encoding/xml"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"time"
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"github.com/comp500/packwiz/core"
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"github.com/fatih/camelcase"
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"github.com/igorsobreira/titlecase"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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// initCmd represents the init command
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var initCmd = &cobra.Command{
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Use: "init",
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Short: "Initialise a packwiz modpack",
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Args: cobra.NoArgs,
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Run: func(cmd *cobra.Command, args []string) {
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_, err := os.Stat(viper.GetString("pack-file"))
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if err == nil && !viper.GetBool("init.reinit") {
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fmt.Println("Modpack metadata file already exists, use -r to override!")
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os.Exit(1)
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} else if err != nil && !os.IsNotExist(err) {
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fmt.Printf("Error checking pack file: %s\n", err)
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os.Exit(1)
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}
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name, err := cmd.Flags().GetString("name")
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if err != nil || len(name) == 0 {
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// Get current file directory name
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wd, err := os.Getwd()
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directoryName := "."
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if err == nil {
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directoryName = filepath.Base(wd)
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}
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if directoryName != "." && len(directoryName) > 0 {
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// Turn directory name into a space-seperated proper name
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name = titlecase.Title(strings.ReplaceAll(strings.ReplaceAll(strings.Join(camelcase.Split(directoryName), " "), " - ", " "), " _ ", " "))
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fmt.Print("Modpack name [" + name + "]: ")
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} else {
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fmt.Print("Modpack name: ")
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}
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readName, err := bufio.NewReader(os.Stdin).ReadString('\n')
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if err != nil {
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fmt.Printf("Error reading input: %s\n", err)
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os.Exit(1)
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}
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// Trims both CR and LF
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readName = strings.TrimSpace(strings.TrimRight(readName, "\r\n"))
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if len(readName) > 0 {
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name = readName
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}
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}
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mcVersions, err := getValidMCVersions()
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if err != nil {
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fmt.Printf("Failed to get latest minecraft versions: %s", err)
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os.Exit(1)
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}
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mcVersion := viper.GetString("init.mc-version")
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if len(mcVersion) == 0 {
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var latestVersion string
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if viper.GetBool("init.snapshot") {
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latestVersion = mcVersions.Latest.Snapshot
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} else {
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latestVersion = mcVersions.Latest.Release
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}
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if viper.GetBool("init.latest") {
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mcVersion = latestVersion
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} else {
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fmt.Print("Minecraft version [" + latestVersion + "]: ")
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mcVersion, err = bufio.NewReader(os.Stdin).ReadString('\n')
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if err != nil {
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fmt.Printf("Error reading input: %s\n", err)
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os.Exit(1)
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}
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// Trims both CR and LF
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mcVersion = strings.TrimSpace(strings.TrimRight(mcVersion, "\r\n"))
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if len(mcVersion) == 0 {
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mcVersion = latestVersion
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}
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}
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}
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mcVersions.checkValid(mcVersion)
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// TODO: minecraft modloader
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modLoaderName := viper.GetString("init.modloader")
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if len(modLoaderName) == 0 {
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var defaultLoader string
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if viper.GetBool("init.snapshot") {
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defaultLoader = "fabric"
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} else {
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defaultLoader = "forge"
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}
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fmt.Print("Mod loader [" + defaultLoader + "]: ")
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modLoaderName, err = bufio.NewReader(os.Stdin).ReadString('\n')
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if err != nil {
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fmt.Printf("Error reading input: %s\n", err)
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os.Exit(1)
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}
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// Trims both CR and LF
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modLoaderName = strings.ToLower(strings.TrimSpace(strings.TrimRight(modLoaderName, "\r\n")))
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if len(modLoaderName) == 0 {
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modLoaderName = defaultLoader
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}
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}
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_, ok := modLoaders[modLoaderName]
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if modLoaderName != "none" && !ok {
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fmt.Println("Given mod loader is not supported! Use \"none\" to specify no modloader, or to configure one manually.")
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fmt.Print("The following mod loaders are supported: ")
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keys := make([]string, len(modLoaders))
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i := 0
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for k := range modLoaders {
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keys[i] = k
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i++
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}
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fmt.Println(strings.Join(keys, ", "))
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os.Exit(1)
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}
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modLoaderVersions := make(map[string]string)
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if modLoaderName != "none" {
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components := modLoaders[modLoaderName]
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for _, component := range components {
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versions, latestVersion, err := component.VersionListGetter(mcVersion)
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if err != nil {
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fmt.Printf("Error loading versions: %s\n", err)
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os.Exit(1)
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}
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componentVersion := viper.GetString("init." + component.Name + "-version")
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if len(componentVersion) == 0 {
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if viper.GetBool("init." + component.Name + "-latest") {
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componentVersion = latestVersion
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} else {
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fmt.Print(component.FriendlyName + " version [" + latestVersion + "]: ")
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componentVersion, err = bufio.NewReader(os.Stdin).ReadString('\n')
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if err != nil {
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fmt.Printf("Error reading input: %s\n", err)
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os.Exit(1)
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}
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// Trims both CR and LF
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componentVersion = strings.ToLower(strings.TrimSpace(strings.TrimRight(componentVersion, "\r\n")))
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if len(componentVersion) == 0 {
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componentVersion = latestVersion
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}
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}
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}
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found := false
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for _, v := range versions {
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if componentVersion == v {
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found = true
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break
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}
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}
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if !found {
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fmt.Println("Given " + component.FriendlyName + " version cannot be found!")
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os.Exit(1)
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}
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modLoaderVersions[component.Name] = componentVersion
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}
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}
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indexFilePath := viper.GetString("init.index-file")
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_, err = os.Stat(indexFilePath)
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if os.IsNotExist(err) {
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// Create file
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err = ioutil.WriteFile(indexFilePath, []byte{}, 0644)
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if err != nil {
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fmt.Printf("Error creating index file: %s\n", err)
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os.Exit(1)
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}
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fmt.Println(indexFilePath + " created!")
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} else if err != nil {
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fmt.Printf("Error checking index file: %s\n", err)
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os.Exit(1)
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}
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// Create the pack
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pack := core.Pack{
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Name: name,
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Index: struct {
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File string `toml:"file"`
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HashFormat string `toml:"hash-format"`
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Hash string `toml:"hash"`
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}{
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File: indexFilePath,
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},
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Versions: map[string]string{
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"minecraft": mcVersion,
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},
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}
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if modLoaderName != "none" {
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for k, v := range modLoaderVersions {
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pack.Versions[k] = v
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}
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}
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// Refresh the index and pack
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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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err = index.Refresh()
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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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err = index.Write()
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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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err = pack.UpdateIndexHash()
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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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err = pack.Write()
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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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fmt.Println(viper.GetString("pack-file") + " created!")
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},
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}
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func init() {
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rootCmd.AddCommand(initCmd)
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initCmd.Flags().String("name", "", "The name of the modpack (omit to define interactively)")
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initCmd.Flags().String("index-file", "index.toml", "The index file to use")
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viper.BindPFlag("init.index-file", initCmd.Flags().Lookup("index-file"))
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initCmd.Flags().String("mc-version", "", "The Minecraft version to use (omit to define interactively)")
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viper.BindPFlag("init.mc-version", initCmd.Flags().Lookup("mc-version"))
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initCmd.Flags().BoolP("latest", "l", false, "Automatically select the latest version of Minecraft")
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viper.BindPFlag("init.latest", initCmd.Flags().Lookup("latest"))
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initCmd.Flags().BoolP("snapshot", "s", false, "Use the latest snapshot version with --latest")
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viper.BindPFlag("init.snapshot", initCmd.Flags().Lookup("snapshot"))
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initCmd.Flags().BoolP("reinit", "r", false, "Recreate the pack file if it already exists, rather than exiting")
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viper.BindPFlag("init.reinit", initCmd.Flags().Lookup("reinit"))
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initCmd.Flags().String("modloader", "", "The mod loader to use (omit to define interactively)")
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viper.BindPFlag("init.modloader", initCmd.Flags().Lookup("modloader"))
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// ok this is epic
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for _, loader := range modLoaders {
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for _, component := range loader {
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initCmd.Flags().String(component.Name+"-version", "", "The "+component.FriendlyName+" version to use (omit to define interactively)")
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viper.BindPFlag("init."+component.Name+"-version", initCmd.Flags().Lookup(component.Name+"-version"))
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initCmd.Flags().Bool(component.Name+"-latest", false, "Automatically select the latest version of "+component.FriendlyName)
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viper.BindPFlag("init."+component.Name+"-latest", initCmd.Flags().Lookup(component.Name+"-latest"))
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}
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}
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}
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type mcVersionManifest struct {
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Latest struct {
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Release string `json:"release"`
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Snapshot string `json:"snapshot"`
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} `json:"latest"`
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Versions []struct {
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ID string `json:"id"`
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Type string `json:"type"`
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URL string `json:"url"`
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Time time.Time `json:"time"`
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ReleaseTime time.Time `json:"releaseTime"`
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} `json:"versions"`
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}
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func (m mcVersionManifest) checkValid(version string) {
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for _, v := range m.Versions {
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if v.ID == version {
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return
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}
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}
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fmt.Println("Given version is not a valid Minecraft version!")
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os.Exit(1)
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}
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func getValidMCVersions() (mcVersionManifest, error) {
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res, err := http.Get("https://launchermeta.mojang.com/mc/game/version_manifest.json")
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if err != nil {
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return mcVersionManifest{}, err
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}
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dec := json.NewDecoder(res.Body)
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out := mcVersionManifest{}
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err = dec.Decode(&out)
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if err != nil {
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return mcVersionManifest{}, err
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}
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// Sort by newest to oldest
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sort.Slice(out.Versions, func(i, j int) bool {
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return out.Versions[i].ReleaseTime.Before(out.Versions[j].ReleaseTime)
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})
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return out, nil
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}
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type mavenMetadata struct {
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XMLName xml.Name `xml:"metadata"`
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GroupID string `xml:"groupId"`
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ArtifactID string `xml:"artifactId"`
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Versioning struct {
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Release string `xml:"release"`
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Versions struct {
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Version []string `xml:"version"`
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} `xml:"versions"`
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LastUpdated string `xml:"lastUpdated"`
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} `xml:"versioning"`
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}
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type modLoaderComponent struct {
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Name string
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FriendlyName string
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VersionListGetter func(mcVersion string) ([]string, string, error)
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}
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var modLoaders = map[string][]modLoaderComponent{
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"fabric": []modLoaderComponent{
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modLoaderComponent{
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Name: "fabric",
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FriendlyName: "Fabric loader",
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VersionListGetter: fetchMavenVersionList("https://maven.fabricmc.net/net/fabricmc/fabric-loader/maven-metadata.xml"),
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},
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modLoaderComponent{
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Name: "yarn",
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FriendlyName: "Yarn (mappings)",
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VersionListGetter: fetchMavenVersionPrefixedList("https://maven.fabricmc.net/net/fabricmc/yarn/maven-metadata.xml", "Yarn"),
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},
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},
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"forge": []modLoaderComponent{
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modLoaderComponent{
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Name: "forge",
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FriendlyName: "Forge",
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VersionListGetter: fetchMavenVersionPrefixedList("https://files.minecraftforge.net/maven/net/minecraftforge/forge/maven-metadata.xml", "Forge"),
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},
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},
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"liteloader": []modLoaderComponent{
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modLoaderComponent{
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Name: "liteloader",
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FriendlyName: "LiteLoader",
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VersionListGetter: fetchMavenVersionPrefixedList("http://repo.mumfrey.com/content/repositories/snapshots/com/mumfrey/liteloader/maven-metadata.xml", "LiteLoader"),
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},
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},
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}
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func fetchMavenVersionList(url string) func(mcVersion string) ([]string, string, error) {
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return func(mcVersion string) ([]string, string, error) {
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res, err := http.Get(url)
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if err != nil {
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return []string{}, "", err
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}
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dec := xml.NewDecoder(res.Body)
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out := mavenMetadata{}
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err = dec.Decode(&out)
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if err != nil {
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return []string{}, "", err
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}
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return out.Versioning.Versions.Version, out.Versioning.Release, nil
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}
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}
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func fetchMavenVersionPrefixedList(url string, friendlyName string) func(mcVersion string) ([]string, string, error) {
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return func(mcVersion string) ([]string, string, error) {
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res, err := http.Get(url)
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if err != nil {
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return []string{}, "", err
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}
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dec := xml.NewDecoder(res.Body)
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out := mavenMetadata{}
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err = dec.Decode(&out)
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if err != nil {
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return []string{}, "", err
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}
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allowedVersions := make([]string, 0, len(out.Versioning.Versions.Version))
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for _, v := range out.Versioning.Versions.Version {
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if strings.HasPrefix(v, mcVersion) {
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allowedVersions = append(allowedVersions, v)
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}
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}
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if len(allowedVersions) == 0 {
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return []string{}, "", errors.New("no " + friendlyName + " versions available for this Minecraft version")
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}
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if strings.HasPrefix(out.Versioning.Release, mcVersion) {
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return allowedVersions, out.Versioning.Release, nil
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}
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return allowedVersions, allowedVersions[len(allowedVersions)-1], nil
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}
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}
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