Fix Windows compatibility for -init flag

diff --git a/cmd/mobius-hotline-server/main.go b/cmd/mobius-hotline-server/main.go
index bf64848b7bd40b95b5bce16d04cbcf5a32947eb2..1e9b5b6fd55f77eb1758f888cf84af7492923523 100644 (file)
--- a/cmd/mobius-hotline-server/main.go
+++ b/cmd/mobius-hotline-server/main.go
@@ -13,7 +13,7 @@ import (
        "log/slog"
        "net/http"
        "os"
-       "path/filepath"
+       "path"
        "runtime"
 )
 
@@ -82,14 +82,15 @@ func main() {
                ),
        )
 
+       // It's important for Windows compatibility to use path.Join and not filepath.Join for the config dir initialization.
+       // https://github.com/golang/go/issues/44305
        if *init {
-               if _, err := os.Stat(filepath.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
+               if _, err := os.Stat(path.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
                        if err := os.MkdirAll(*configDir, 0750); err != nil {
                                slogger.Error(fmt.Sprintf("error creating config dir: %s", err))
                                os.Exit(1)
                        }
-
-                       if err := copyDir("mobius/config", *configDir); err != nil {
+                       if err := copyDir(path.Join("mobius", "config"), *configDir); err != nil {
                                slogger.Error(fmt.Sprintf("error copying config dir: %s", err))
                                os.Exit(1)
                        }
@@ -193,19 +194,19 @@ func copyDir(src, dst string) error {
        }
        for _, dirEntry := range entries {
                if dirEntry.IsDir() {
-                       if err := os.MkdirAll(filepath.Join(dst, dirEntry.Name()), 0777); err != nil {
+                       if err := os.MkdirAll(path.Join(dst, dirEntry.Name()), 0777); err != nil {
                                panic(err)
                        }
-                       subdirEntries, _ := cfgTemplate.ReadDir(filepath.Join(src, dirEntry.Name()))
+                       subdirEntries, _ := cfgTemplate.ReadDir(path.Join(src, dirEntry.Name()))
                        for _, subDirEntry := range subdirEntries {
-                               f, err := os.Create(filepath.Join(dst, dirEntry.Name(), subDirEntry.Name()))
+                               f, err := os.Create(path.Join(dst, dirEntry.Name(), subDirEntry.Name()))
                                if err != nil {
                                        return err
                                }
 
-                               srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name(), subDirEntry.Name()))
+                               srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name(), subDirEntry.Name()))
                                if err != nil {
-                                       return err
+                                       return fmt.Errorf("error copying srcFile: %w", err)
                                }
                                _, err = io.Copy(f, srcFile)
                                if err != nil {
@@ -214,12 +215,12 @@ func copyDir(src, dst string) error {
                                f.Close()
                        }
                } else {
-                       f, err := os.Create(filepath.Join(dst, dirEntry.Name()))
+                       f, err := os.Create(path.Join(dst, dirEntry.Name()))
                        if err != nil {
                                return err
                        }
 
-                       srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name()))
+                       srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name()))
                        if err != nil {
                                return err
                        }