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|
package service
import (
"fmt"
"os"
"time"
"git.server.ky/slackcoder/mirror/internal"
"github.com/BurntSushi/toml"
)
type Duration struct {
time.Duration
}
func (s Duration) MarshalText() ([]byte, error) {
return []byte(s.Duration.String()), nil
}
func (s *Duration) UnmarshalText(text []byte) error {
v, err := time.ParseDuration(string(text))
if err != nil {
return err
}
*s = Duration{v}
return nil
}
// Global parameters
type GlobalConfig struct {
MaxInterval Duration `toml:"max-interval"`
MinInterval Duration `toml:"min-interval"`
}
type Config struct {
GlobalConfig `toml:"global"`
Mirrors []*Mirror `toml:"mirrors,omitempty"`
}
func (c *Config) String() string {
return internal.MustTOML(c)
}
var DefaultConfig = Config{
GlobalConfig: GlobalConfig{
MaxInterval: Duration{24 * time.Hour},
MinInterval: Duration{time.Hour},
},
}
func (c *Config) Apply(src Config) {
if c.MaxInterval.Duration == 0 && src.MaxInterval.Duration != 0 {
c.MaxInterval = src.MaxInterval
}
if c.MinInterval.Duration == 0 && src.MinInterval.Duration != 0 {
c.MinInterval = src.MinInterval
}
if len(c.Mirrors) == 0 {
c.Mirrors = src.Mirrors
}
}
// ApplyFileConfig loads the configuration described by the given yaml file.
func ApplyFileConfig(cfg *Config, filePath string) error {
var ret Config
f, err := os.Open(filePath)
if os.IsNotExist(err) {
return nil
} else if err != nil {
return err
}
defer f.Close()
_, err = toml.NewDecoder(f).Decode(&ret)
if err != nil {
return fmt.Errorf("loading configuration file: %w", err)
}
cfg.Apply(ret)
return nil
}
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