feat: toml config support (#9)

## What's new - TOML config support - add config init command to justfile https://github.com/versenilvis/IRIS/pull/9/commits/a5bb6c23d74ca73385b3590d2eb275ce6429906b - add copy binary file to local bin on reload https://github.com/versenilvis/IRIS/pull/9/commits/4da3acdbc58c28f20fa0021d15fec82823ba392b - init config on setup https://github.com/versenilvis/IRIS/pull/9/commits/fb48b6bb832f38e24fab9211d92858bab9a58a07 ## Fix - add lsof to support macos because /proc filesystem is Linux-specific and does not exist on macOS 0439d829573864fcf902fc4127f7d45384bfab01 - git push doesnt suggest current branch, fix https://github.com/versenilvis/IRIS/pull/9/commits/b498532b401b764a4a1a2c70b3cb44b7caf72320 - use timeout context for lsof command in reload handler https://github.com/versenilvis/IRIS/pull/9/commits/1a2baee951e6538a729da12aedfe53960e51102d
2026-05-30 22:05:06 +07:00
parent 8556fa626a
commit 3d76a3ee88
21 changed files with 1064 additions and 160 deletions
@@ -0,0 +1,159 @@
+package config
+
+import (
+	"encoding"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"github.com/BurntSushi/toml"
+)
+
+type Duration time.Duration
+
+var (
+	_ encoding.TextUnmarshaler = (*Duration)(nil)
+	_ encoding.TextMarshaler   = (*Duration)(nil)
+)
+
+func (d *Duration) UnmarshalText(text []byte) error {
+	dur, err := time.ParseDuration(string(text))
+	if err != nil {
+		return err
+	}
+	*d = Duration(dur)
+	return nil
+}
+
+func (d Duration) MarshalText() ([]byte, error) {
+	return []byte(time.Duration(d).String()), nil
+}
+
+type CoreConfig struct {
+	Version int    `toml:"version"`
+	Shell   string `toml:"shell"`
+	Mode    string `toml:"mode"`
+	Debug   bool   `toml:"debug"`
+}
+
+type UIConfig struct {
+	GhostText      bool `toml:"ghost-text"`
+	MaxSuggestions int  `toml:"max-suggestions"`
+	MaxHeight      int  `toml:"max-height"`
+}
+
+type GitConfig struct {
+	FilterActiveBranch  bool `toml:"filter-active-branch"`
+	DeduplicateBranches bool `toml:"deduplicate-branches"`
+}
+
+type UpdaterConfig struct {
+	CheckOnStartup bool     `toml:"check-on-startup"`
+	Channel        string   `toml:"channel"`
+	CheckInterval  Duration `toml:"check-interval"`
+}
+
+type Config struct {
+	Core    CoreConfig    `toml:"core"`
+	UI      UIConfig      `toml:"ui"`
+	Git     GitConfig     `toml:"git"`
+	Updater UpdaterConfig `toml:"updater"`
+}
+
+var (
+	activeConfig *Config
+	once         sync.Once
+)
+
+func Get() *Config {
+	once.Do(func() {
+		if activeConfig == nil {
+			activeConfig = DefaultConfig()
+		}
+	})
+	return activeConfig
+}
+
+func Init(cfg *Config) {
+	activeConfig = cfg
+	once.Do(func() {})
+}
+
+func Load() (*Config, error) {
+	cfg := DefaultConfig()
+
+	path, err := ConfigPath()
+	if err == nil {
+		if _, statErr := os.Stat(path); statErr == nil {
+			data, readErr := os.ReadFile(path)
+			if readErr != nil {
+				return cfg, fmt.Errorf("config: read %s: %w", path, readErr)
+			}
+			if _, decodeErr := toml.Decode(string(data), cfg); decodeErr != nil {
+				return cfg, fmt.Errorf("config: parse %s: %w", path, decodeErr)
+			}
+		}
+	}
+
+	applyEnv(cfg)
+
+	if err := validate(cfg); err != nil {
+		return cfg, fmt.Errorf("config: invalid value: %w", err)
+	}
+
+	return cfg, nil
+}
+
+func Save(cfg *Config) error {
+	path, err := ConfigPath()
+	if err != nil {
+		return err
+	}
+
+	err = os.MkdirAll(filepath.Dir(path), 0755)
+	if err != nil {
+		return err
+	}
+
+	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	enc := toml.NewEncoder(file)
+	if err := enc.Encode(cfg); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func validate(cfg *Config) error {
+	validModes := map[string]bool{"last": true, "spec": true, "history": true}
+	if cfg.Core.Mode != "" && !validModes[cfg.Core.Mode] {
+		return fmt.Errorf("core.mode: invalid value %q (want: last|spec|history)", cfg.Core.Mode)
+	}
+
+	validShells := map[string]bool{"": true, "bash": true, "zsh": true, "fish": true}
+	if !validShells[cfg.Core.Shell] {
+		return fmt.Errorf("core.shell: invalid value %q (want: bash|zsh|fish)", cfg.Core.Shell)
+	}
+
+	validChannels := map[string]bool{"stable": true, "nightly": true}
+	if !validChannels[cfg.Updater.Channel] {
+		return fmt.Errorf("updater.channel: invalid value %q (want: stable|nightly)", cfg.Updater.Channel)
+	}
+
+	if cfg.UI.MaxSuggestions < 1 || cfg.UI.MaxSuggestions > 500 {
+		return fmt.Errorf("ui.max-suggestions: must be between 1 and 500")
+	}
+
+	if cfg.UI.MaxHeight < 3 || cfg.UI.MaxHeight > 50 {
+		return fmt.Errorf("ui.max-height: must be between 3 and 50")
+	}
+
+	return nil
+}