107 lines
2.6 KiB
Go
107 lines
2.6 KiB
Go
package main
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import (
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"archive/zip"
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"encoding/json"
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"io/ioutil"
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"log"
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"os"
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)
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// Fabric/Quilt Mod Json
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type FabricModJson struct {
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ID string `json:"id"`
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Version string `json:"version"`
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Name string `json:"name"`
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}
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type QuiltModJson struct {
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QuiltLoader struct {
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ID string `json:"id"`
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Version string `json:"version"`
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Metadata struct {
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Name string `json:"name"`
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} `json:"metadata"`
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} `json:"quilt_loader"`
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}
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var (
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fabricMods []FabricModJson
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quiltMods []QuiltModJson
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)
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// deduplicate mod jars based off the name of the jar
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// if the jar name is the same, then we will only keep the one with the highest version
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// or the latest modified date
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func main() {
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// get list of jars in ./mods
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files, err := ioutil.ReadDir("./mods")
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if err != nil {
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log.Fatalln("[READ DIR]", err)
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}
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// for modjars,
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for _, file := range files {
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// read the mod.json file and return the name, version, and filename
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name, version, loader := readMod("./mods/" + file.Name())
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if loader != "" {
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// rename the file to Name-Version.jar
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err := os.Rename("./mods/"+file.Name(), "./mods/"+name+"-"+version+".jar")
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if err != nil {
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log.Fatalln("[RENAME MOD]", err)
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}
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log.Println(loader, name, version)
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} else {
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log.Println("Unsupported Loader", file.Name())
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}
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}
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for _, mod := range fabricMods {
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// check if there is a duplicate in the list
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for _, mod2 := range fabricMods {
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if mod.Name == mod2.Name && mod.Version != mod2.Version {
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// if there is a duplicate, delete the one with the lower semver version
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if mod.Version < mod2.Version {
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err := os.Remove("./mods/" + mod.Name + "-" + mod.Version + ".jar")
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if err != nil {
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log.Fatalln("[REMOVE MOD]", err)
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}
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}
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}
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}
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}
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}
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// read the mod.json file and return the name, version, and filename
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func readMod(filename string) (string, string, string) {
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var fabricJson FabricModJson
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var quiltJson QuiltModJson
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var loader string
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zipReader, err := zip.OpenReader(filename)
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if err != nil {
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log.Fatalln("[READ ZIP]", err)
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}
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defer zipReader.Close()
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for _, file := range zipReader.File {
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contents, _ := file.Open()
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if file.Name == "fabric.mod.json" {
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loader = "fabric"
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// add to fabric list
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json.NewDecoder(contents).Decode(&fabricJson)
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}
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if file.Name == "quilt.mod.json" {
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loader = "quilt"
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json.NewDecoder(contents).Decode(&quiltJson)
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}
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}
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if loader == "fabric" {
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fabricMods = append(fabricMods, fabricJson)
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return fabricJson.Name, fabricJson.Version, loader
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}
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if loader == "quilt" {
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quiltMods = append(quiltMods, quiltJson)
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return quiltJson.QuiltLoader.Metadata.Name, quiltJson.QuiltLoader.Version, loader
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}
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return "", "", ""
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}
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