Move config creation logic into main.go

cmd/hcloud/main.go

@@ -15,7 +15,17 @@ func init() {
 }
 
 func main() {
-	s, err := state.New()
+	configPath := os.Getenv("HCLOUD_CONFIG")
+	if configPath == "" {
+		configPath = state.DefaultConfigPath()
+	}
+
+	cfg, err := state.ReadConfig(configPath)
+	if err != nil {
+		log.Fatalf("unable to read config file %q: %s\n", configPath, err)
+	}
+
+	s, err := state.New(cfg)
 	if err != nil {
 		log.Fatalln(err)
 	}

internal/state/config.go

@@ -8,8 +8,6 @@ import (
 	toml "github.com/pelletier/go-toml/v2"
 )
 
-var DefaultConfigPath string
-
 type Config struct {
 	Path          string
 	Endpoint      string

internal/state/config_unix.go

@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package state
 
@@ -8,12 +7,13 @@ import (
 	"path/filepath"
 )
 
-func init() {
+func DefaultConfigPath() string {
 	usr, err := user.Current()
 	if err != nil {
-		return
+		return ""
 	}
 	if usr.HomeDir != "" {
-		DefaultConfigPath = filepath.Join(usr.HomeDir, ".config", "hcloud", "cli.toml")
+		return filepath.Join(usr.HomeDir, ".config", "hcloud", "cli.toml")
 	}
+	return ""
 }

internal/state/config_windows.go

@@ -1,5 +1,4 @@
 //go:build windows
-// +build windows
 
 package state
 
@@ -8,9 +7,10 @@ import (
 	"path/filepath"
 )
 
-func init() {
+func DefaultConfigPath() string {
 	dir := os.Getenv("APPDATA")
 	if dir != "" {
-		DefaultConfigPath = filepath.Join(dir, "hcloud", "cli.toml")
+		return filepath.Join(dir, "hcloud", "cli.toml")
 	}
+	return ""
 }

internal/state/state.go

@@ -2,7 +2,6 @@ package state
 
 import (
 	"context"
-	"fmt"
 	"log"
 	"os"
 	"time"
@@ -34,17 +33,7 @@ type state struct {
 	config        *Config
 }
 
-func New() (State, error) {
-	configPath := os.Getenv("HCLOUD_CONFIG")
-	if configPath == "" {
-		configPath = DefaultConfigPath
-	}
-
-	cfg, err := readConfig(configPath)
-	if err != nil {
-		return nil, fmt.Errorf("unable to read config file %q: %s\n", configPath, err)
-	}
-
+func New(cfg *Config) (State, error) {
 	var (
 		token    string
 		endpoint string
@@ -69,6 +58,29 @@ func New() (State, error) {
 	return s, nil
 }
 
+func ReadConfig(path string) (*Config, error) {
+	cfg := &Config{Path: path}
+
+	_, err := os.Stat(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err = nil
+		}
+		return cfg, err
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = UnmarshalConfig(cfg, data); err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}
+
 func (c *state) Client() hcapi2.Client {
 	return c.client
 }
@@ -100,29 +112,6 @@ func (c *state) readEnv() {
 	}
 }
 
-func readConfig(path string) (*Config, error) {
-	cfg := &Config{Path: path}
-
-	_, err := os.Stat(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			err = nil
-		}
-		return cfg, err
-	}
-
-	data, err := os.ReadFile(path)
-	if err != nil {
-		return nil, err
-	}
-
-	if err = UnmarshalConfig(cfg, data); err != nil {
-		return nil, err
-	}
-
-	return cfg, nil
-}
-
 func (c *state) newClient() *hcloud.Client {
 	opts := []hcloud.ClientOption{
 		hcloud.WithToken(c.token),