85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package config
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import (
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"os"
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"path/filepath"
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"strings"
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"sync"
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"gitlab.guxuan.icu/jinshan_community/pkg/encoding/json"
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"gitlab.guxuan.icu/jinshan_community/pkg/encoding/toml"
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"gitlab.guxuan.icu/jinshan_community/pkg/errors"
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"github.com/creasty/defaults"
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)
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var (
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once sync.Once
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C = new(Config)
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)
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func MustLoad(dir string, names ...string) {
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once.Do(func() {
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if err := Load(dir, names...); err != nil {
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panic(err)
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}
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})
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}
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// Loads configuration files in various formats from a directory and parses them into
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// a struct.
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func Load(dir string, names ...string) error {
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// Set default values
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if err := defaults.Set(C); err != nil {
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return err
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}
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supportExts := []string{".json", ".toml"}
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parseFile := func(name string) error {
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ext := filepath.Ext(name)
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if ext == "" || !strings.Contains(strings.Join(supportExts, ","), ext) {
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return nil
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}
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buf, err := os.ReadFile(name)
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if err != nil {
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return errors.Wrapf(err, "failed to read config file %s", name)
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}
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switch ext {
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case ".json":
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err = json.Unmarshal(buf, C)
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case ".toml":
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err = toml.Unmarshal(buf, C)
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}
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return errors.Wrapf(err, "failed to unmarshal config %s", name)
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}
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for _, name := range names {
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fullname := filepath.Join(dir, name)
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info, err := os.Stat(fullname)
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if err != nil {
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return errors.Wrapf(err, "failed to get config file %s", name)
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}
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if info.IsDir() {
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err := filepath.WalkDir(fullname, func(path string, d os.DirEntry, err error) error {
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if err != nil {
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return err
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} else if d.IsDir() {
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return nil
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}
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return parseFile(path)
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})
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if err != nil {
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return errors.Wrapf(err, "failed to walk config dir %s", name)
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}
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continue
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}
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if err := parseFile(fullname); err != nil {
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return err
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}
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}
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return nil
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}
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