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package config
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
)
const (
defaultWeekWorkHours = 40.0
defaultWorktimeDBDir = "~/git/worktime"
configDirName = "timr"
configFileName = "config.json"
)
var (
defaultPlusFor = []string{"off", "bank", "bufferuse", "sick"}
defaultWeekendDays = []string{"Sat", "Sun"}
defaultMinusFor = []string{"lunch"}
defaultBufferFor = []string{
"tools",
"pet",
"selfdevelopment",
"workrebalance",
"compensate",
"travel",
"rebalance",
}
)
// Config defines runtime settings for timer and worktime integrations.
type Config struct {
WeekWorkHours float64 `json:"weekworkhours"`
PlusFor []string `json:"plusfor"`
WeekendDays []string `json:"weekendays"`
MinusFor []string `json:"minusfor"`
BufferFor []string `json:"bufferfor"`
WorktimeDBDir string `json:"worktime_db_dir"`
Hostname string `json:"hostname"`
AutoWorktimeLogin bool `json:"auto_worktime_login"`
}
// Default returns the default configuration values.
func Default() Config {
return Config{
WeekWorkHours: defaultWeekWorkHours,
PlusFor: cloneStrings(defaultPlusFor),
WeekendDays: cloneStrings(defaultWeekendDays),
MinusFor: cloneStrings(defaultMinusFor),
BufferFor: cloneStrings(defaultBufferFor),
WorktimeDBDir: defaultWorktimeDBDir,
Hostname: "",
AutoWorktimeLogin: false,
}
}
// DefaultPath returns the default config file location.
func DefaultPath() (string, error) {
configDir, err := os.UserConfigDir()
if err != nil {
return "", fmt.Errorf("resolve user config directory: %w", err)
}
return filepath.Join(configDir, configDirName, configFileName), nil
}
// Load reads config from path. If path is empty, the default path is used.
// Missing config files return defaults.
func Load(path string) (Config, error) {
cfg := Default()
configPath, err := resolveConfigPath(path)
if err != nil {
return cfg, err
}
data, err := os.ReadFile(configPath)
if err != nil {
if os.IsNotExist(err) {
return normalizeConfig(cfg)
}
return cfg, fmt.Errorf("read config %q: %w", configPath, err)
}
if err := json.Unmarshal(data, &cfg); err != nil {
return cfg, fmt.Errorf("parse config %q: %w", configPath, err)
}
applyDefaults(&cfg)
return normalizeConfig(cfg)
}
// Save writes config to path. If path is empty, the default path is used.
func Save(path string, cfg Config) error {
configPath, err := resolveConfigPath(path)
if err != nil {
return err
}
applyDefaults(&cfg)
cfg, err = normalizeConfig(cfg)
if err != nil {
return err
}
data, err := json.MarshalIndent(cfg, "", " ")
if err != nil {
return fmt.Errorf("encode config: %w", err)
}
data = append(data, '\n')
if err := os.MkdirAll(filepath.Dir(configPath), 0o755); err != nil {
return fmt.Errorf("create config directory for %q: %w", configPath, err)
}
if err := os.WriteFile(configPath, data, 0o644); err != nil {
return fmt.Errorf("write config %q: %w", configPath, err)
}
return nil
}
// EffectiveHostname resolves hostname using config, then ~/.hostnameoverride, then os.Hostname().
func (c Config) EffectiveHostname() (string, error) {
if host := strings.TrimSpace(c.Hostname); host != "" {
return host, nil
}
overridePath, err := expandHome("~/.hostnameoverride")
if err != nil {
return "", err
}
data, err := os.ReadFile(overridePath)
if err == nil {
if host := strings.TrimSpace(string(data)); host != "" {
return host, nil
}
} else if !os.IsNotExist(err) {
return "", fmt.Errorf("read hostname override %q: %w", overridePath, err)
}
host, err := os.Hostname()
if err != nil {
return "", fmt.Errorf("resolve os hostname: %w", err)
}
return host, nil
}
func applyDefaults(cfg *Config) {
if cfg.WeekWorkHours == 0 {
cfg.WeekWorkHours = defaultWeekWorkHours
}
if cfg.PlusFor == nil {
cfg.PlusFor = cloneStrings(defaultPlusFor)
}
if cfg.WeekendDays == nil {
cfg.WeekendDays = cloneStrings(defaultWeekendDays)
}
if cfg.MinusFor == nil {
cfg.MinusFor = cloneStrings(defaultMinusFor)
}
if cfg.BufferFor == nil {
cfg.BufferFor = cloneStrings(defaultBufferFor)
}
if strings.TrimSpace(cfg.WorktimeDBDir) == "" {
cfg.WorktimeDBDir = defaultWorktimeDBDir
}
}
func normalizeConfig(cfg Config) (Config, error) {
worktimeDir, err := expandHome(cfg.WorktimeDBDir)
if err != nil {
return cfg, fmt.Errorf("expand worktime_db_dir %q: %w", cfg.WorktimeDBDir, err)
}
cfg.WorktimeDBDir = worktimeDir
return cfg, nil
}
func resolveConfigPath(path string) (string, error) {
if strings.TrimSpace(path) == "" {
return DefaultPath()
}
resolvedPath, err := expandHome(path)
if err != nil {
return "", fmt.Errorf("expand config path %q: %w", path, err)
}
return resolvedPath, nil
}
func expandHome(path string) (string, error) {
if path == "" {
return "", nil
}
if path != "~" && !strings.HasPrefix(path, "~/") {
return path, nil
}
homeDir, err := os.UserHomeDir()
if err != nil {
return "", fmt.Errorf("resolve home directory: %w", err)
}
if path == "~" {
return homeDir, nil
}
return filepath.Join(homeDir, path[2:]), nil
}
func cloneStrings(values []string) []string {
copied := make([]string, len(values))
copy(copied, values)
return copied
}
|
