upgraded config creation

.gitignore

@@ -1,2 +1,4 @@
 .idea
-epoch-linux
+bin/
+epochcli-*
+*.tar.gz

README.md

@@ -1,17 +1,26 @@
-# epoch-linux
+# epochcli
 
-Linux updater and launcher for [Project Epoch](https://www.project-epoch.net/) 
+CLI tool for updating and launching [Project Epoch](https://www.project-epoch.net/) on Linux & macOS.
 
-## Instructions
+## Setup Instructions
+For Linux, a `wine` prefix with `dxvk` installed is sufficient, or you can use something like Lutris or faugus-launcher without the launcher functionality in `epochcli`
 
-1. Set up a copy of WoW 3.3.5 in a wine prefix or launcher of your choice. Chromiecraft has a good torrent you can use for the 3.3.5 client
-2. Install `epoch-linux` by either
-   1. Download the latest binary from the [releases](https://git.burkey.co/eburk/epoch-linux/releases) page 
-   2. If you have the `go` toolchain installed, you can run `go get git.burkey.co/eburk/epoch-linux@latest` to install to your `$GOROOT`
+For macOS, the [Kegworks Wineskin port](https://github.com/Kegworks-App/Kegworks) works great (tutorial coming in the future...)
+
+1. Install `epochcli` by either
+   1. Downloading the latest binary from the [releases](https://git.burkey.co/eburk/epochcli/releases) page 
+   2. If you have the `go` toolchain installed, you can run `go install git.burkey.co/eburk/epochcli` to install to your `$GOROOT`
    3. Compile the source yourself
-3. Run `epoch-linux` once. This will create a config file at `$HOME/.config/epoch-linux/config.toml`. Change the `WowDir` variable to your Wow game directory
-4. Run `epoch-linux` again. It will download the patch files from Epoch's servers to your Wow directory
-5. Use your launcher or tool of choice to startup Epoch in `wine`
+2. Run `epochcli`. You will be taken through a setup process that configures the program and creates a config file at `$HOME/.config/epochcli/config.toml`
+3. You can now use `epochcli` as just a standalone updater or also a launcher based on your configuration. You can always run `epochcli -c` to redo the configuration or edit the config file manually
+
+## Usage
+```
+> ./epochcli -h
+  -c    Runs config configuration step. Overrides the config file
+  -h    Print help
+  -u    Ignore EnableLauncher setting in config and only runs an update. Does nothing if EnableLauncher is false
+```
 
 ## Issues
 

config.go

@@ -0,0 +1,105 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"github.com/BurntSushi/toml"
+	"github.com/sqweek/dialog"
+	"os"
+	"path/filepath"
+)
+
+type Config struct {
+	WowDir         string
+	LaunchCmd      string
+	EnableLauncher bool
+}
+
+const (
+	configDirName = "epochcli"
+	configName    = "config.toml"
+)
+
+var cfgPath string
+
+func setupConfig(rerun bool) (*Config, error) {
+	home := os.Getenv("HOME")
+	if home == "" {
+		return nil, fmt.Errorf("$HOME environment variable not set")
+	}
+
+	newConfig := Config{
+		WowDir:         defaultWowPath,
+		LaunchCmd:      defaultLaunchCmd,
+		EnableLauncher: false,
+	}
+
+	cfgPath = filepath.Join(home, ".config", configDirName, configName)
+
+	_, statErr := os.Stat(cfgPath)
+	if rerun || os.IsNotExist(statErr) {
+		fmt.Println("Press any key to open a file window and select your wow directory")
+		var r rune
+		_, _ = fmt.Scanf("%c", &r)
+
+		var err error
+		newConfig.WowDir, err = dialog.Directory().Title("Select your wow directory").Browse()
+		if err != nil {
+			if errors.Is(err, dialog.ErrCancelled) {
+				return nil, fmt.Errorf("cancelled dialog box, exiting")
+			}
+			return nil, err
+		}
+
+		for {
+			fmt.Printf("Do you want to use epochcli to launch Wow? Select No if you plan on using a launcher tool like Lutris (y/n): ")
+			var s string
+			_, err = fmt.Scanf("%s", &s)
+			if err != nil {
+				return nil, err
+			}
+
+			if s == "y" || s == "Y" {
+				newConfig.EnableLauncher = true
+				fmt.Println("Enter your launch command to start Wow below. If you would rather configure this later in the configuration file, just press Enter")
+				fmt.Printf("> ")
+				_, err = fmt.Scanf("%s", &s)
+				if err != nil {
+					return nil, err
+				}
+				if s != "" {
+					newConfig.LaunchCmd = s
+				}
+				break
+			}
+
+			if s == "n" || s == "N" {
+				break
+			}
+
+			fmt.Println("Please enter a valid value of either 'y' or 'n'")
+		}
+
+		os.MkdirAll(filepath.Join(home, ".config", configDirName), 0755)
+
+		file, err := os.Create(cfgPath)
+		if err != nil {
+			return nil, err
+		}
+		defer file.Close()
+
+		encoder := toml.NewEncoder(file)
+		if err = encoder.Encode(newConfig); err != nil {
+			return nil, err
+		}
+
+		fmt.Println("Created new config at ", cfgPath)
+	}
+
+	_, err := toml.DecodeFile(cfgPath, &newConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return &newConfig, nil
+}

go.mod

@@ -1,5 +1,10 @@
-module git.burkey.co/eburk/epoch-linux
+module git.burkey.co/eburk/epochcli
 
 go 1.24.3
 
-require github.com/BurntSushi/toml v1.5.0
+require (
+	github.com/BurntSushi/toml v1.5.0
+	github.com/sqweek/dialog v0.0.0-20240226140203-065105509627
+)
+
+require github.com/TheTitanrain/w32 v0.0.0-20180517000239-4f5cfb03fabf // indirect

go.sum

@@ -1,2 +1,6 @@
 github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/TheTitanrain/w32 v0.0.0-20180517000239-4f5cfb03fabf h1:FPsprx82rdrX2jiKyS17BH6IrTmUBYqZa/CXT4uvb+I=
+github.com/TheTitanrain/w32 v0.0.0-20180517000239-4f5cfb03fabf/go.mod h1:peYoMncQljjNS6tZwI9WVyQB3qZS6u79/N3mBOcnd3I=
+github.com/sqweek/dialog v0.0.0-20240226140203-065105509627 h1:2JL2wmHXWIAxDofCK+AdkFi1KEg3dgkefCsm7isADzQ=
+github.com/sqweek/dialog v0.0.0-20240226140203-065105509627/go.mod h1:/qNPSY91qTz/8TgHEMioAUc6q7+3SOybeKczHMXFcXw=

main.go

@@ -3,79 +3,81 @@ package main
 import (
 	"crypto/md5"
 	"encoding/hex"
+	"flag"
 	"fmt"
-	"github.com/BurntSushi/toml"
 	"io"
 	"log"
 	"net/http"
 	"os"
+	"os/exec"
 	"path/filepath"
+	"runtime"
 	"strings"
 )
 
 const (
 	manifestUrl      = "https://updater.project-epoch.net/api/manifest"
-	configDirName = "epoch-linux"
-	configName    = "config.toml"
+	defaultWowPath   = "/path/to/wow"
+	defaultLaunchCmd = "not configured"
 )
 
-type Config struct {
-	WowDir string
-}
+func main() {
+	var (
+		helpFlag       bool
+		updateOnlyFlag bool
+		rerunConfig    bool
+	)
+	flag.BoolVar(&helpFlag, "h", false, "Print help")
+	flag.BoolVar(&updateOnlyFlag, "u", false, "Ignore EnableLauncher setting in config and only runs an update. Does nothing if EnableLauncher is false")
+	flag.BoolVar(&rerunConfig, "c", false, "Runs config configuration step. Overrides the config file")
+	flag.Parse()
 
-var (
-	config Config
-)
-
-func setupConfig() {
-	home := os.Getenv("HOME")
-	if home == "" {
-		log.Fatal("$HOME environment variable not set")
-	}
-
-	cfgPath := filepath.Join(home, ".config", configDirName, configName)
-
-	if _, statErr := os.Stat(cfgPath); os.IsNotExist(statErr) {
-		os.MkdirAll(filepath.Join(home, ".config", configDirName), 0755)
-
-		newConfig := &Config{
-			WowDir: "/path/to/wow",
-		}
-
-		file, err := os.Create(cfgPath)
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer file.Close()
-
-		encoder := toml.NewEncoder(file)
-		if err = encoder.Encode(newConfig); err != nil {
-			log.Fatal(err)
-		}
-
-		fmt.Printf("Created new config at %s, edit it before running the launcher again\n", cfgPath)
+	if helpFlag {
+		flag.CommandLine.SetOutput(os.Stdout)
+		flag.PrintDefaults()
 		os.Exit(0)
 	}
 
-	_, err := toml.DecodeFile(cfgPath, &config)
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-
-func main() {
-	setupConfig()
-
-	count, err := downloadUpdate()
+	config, err := setupConfig(rerunConfig)
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	fmt.Printf("Updated %d files\n", count)
+	if config.WowDir == defaultWowPath {
+		log.Fatalf("WowDir in %s is still the default setting, exiting", cfgPath)
+	}
+
+	updated, current, err := downloadUpdate(config)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Printf("Updated %d files\n", updated)
+	if current > 0 {
+		fmt.Printf("%d files are already up to date\n", current)
+	}
+
+	if updateOnlyFlag {
+		os.Exit(0)
+	}
+
+	if config.EnableLauncher {
+		if config.LaunchCmd == defaultLaunchCmd {
+			log.Fatalf("LaunchCmd in %s is still the default setting, exiting\n", cfgPath)
+		}
+
+		fmt.Println("Starting Epoch...")
+		switch runtime.GOOS {
+		case "darwin":
+			exec.Command("open", config.LaunchCmd).Run()
+		case "linux":
+			exec.Command(config.LaunchCmd).Run()
+		}
+	}
 }
 
-func downloadUpdate() (int, error) {
-	var c int
+func downloadUpdate(config *Config) (int, int, error) {
+	var updateCount, currentCount int
 
 	manifest, err := getManifest()
 	if err != nil {
@@ -95,11 +97,12 @@ func downloadUpdate() (int, error) {
 		if _, err = os.Stat(localPath); err == nil {
 			data, err := os.ReadFile(localPath)
 			if err != nil {
-				return c, err
+				return updateCount, currentCount, err
 			}
 			hashBytes := md5.Sum(data)
 			hash := hex.EncodeToString(hashBytes[:])
 			if hash == file.Hash {
+				currentCount += 1
 				continue
 			}
 		}
@@ -108,26 +111,26 @@ func downloadUpdate() (int, error) {
 
 		outFile, err := os.Create(localPath)
 		if err != nil {
-			return c, err
+			return updateCount, currentCount, err
 		}
 		defer outFile.Close()
 
 		resp, err := http.Get(file.URL)
 		if err != nil {
-			return c, err
+			return updateCount, currentCount, err
 		}
 		defer resp.Body.Close()
 		if resp.StatusCode != http.StatusOK {
-			return c, fmt.Errorf("failed to download update from %s, status code: %d", file.URL, resp.StatusCode)
+			return updateCount, currentCount, fmt.Errorf("failed to download update from %s, status code: %d", file.URL, resp.StatusCode)
 		}
 
 		_, err = io.Copy(outFile, resp.Body)
 		if err != nil {
-			return c, err
+			return updateCount, currentCount, err
 		}
 
-		c += 1
+		updateCount += 1
 	}
 
-	return c, nil
+	return updateCount, currentCount, nil
 }

release.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+
+set -e
+
+rm -f ./*.tar.gz
+rm -rf bin
+
+mkdir bin
+
+GOOS=linux GOARCH=amd64 go build -o bin/epochcli-linux-amd64
+tar czvf epochcli-linux-amd64.tar.gz bin/epochcli-linux-amd64
+
+GOOS=darwin GOARCH=amd64 go build -o bin/epochcli-darwin-amd64
+tar czvf epochcli-darwin-amd64.tar.gz bin/epochcli-darwin-amd64
+
+GOOS=darwin GOARCH=arm64 go build -o bin/epochcli-darwin-arm64
+tar czvf epochcli-darwin-arm64.tar.gz bin/epochcli-darwin-arm64
+
+rm -rf bin