68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
package config
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import (
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"encoding/json"
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"log"
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"os"
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"path/filepath"
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"github.com/pkg/errors"
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)
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var DirPath string
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func init() {
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// Load the config dir:
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d, err := os.UserConfigDir()
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if err != nil {
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log.Fatalln("Failed to get config dir:", err)
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}
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// Fill Path:
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DirPath = filepath.Join(d, "cchat-gtk")
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// Ensure it exists:
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if err := os.Mkdir(DirPath, 0755|os.ModeDir); err != nil && !os.IsExist(err) {
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log.Fatalln("Failed to make config dir:", err)
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}
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}
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func MarshalToFile(file string, from interface{}) error {
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file = filepath.Join(DirPath, file)
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f, err := os.OpenFile(file, os.O_CREATE|os.O_WRONLY|os.O_SYNC|os.O_TRUNC, 0644)
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if err != nil {
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return errors.Wrap(err, "Failed to open file")
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}
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defer f.Close()
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enc := json.NewEncoder(f)
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enc.SetIndent("", "\t")
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if err := enc.Encode(from); err != nil {
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return errors.Wrap(err, "Failed to marshal given struct")
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}
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return nil
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}
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func UnmarshalFromFile(file string, to interface{}) error {
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file = filepath.Join(DirPath, file)
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f, err := os.OpenFile(file, os.O_RDONLY, 0644)
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if err != nil {
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// Ignore does not exist error, leave struct as it is.
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if os.IsNotExist(err) {
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return nil
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}
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return err
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}
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defer f.Close()
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if err := json.NewDecoder(f).Decode(to); err != nil {
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return errors.Wrap(err, "Failed to unmarshal to given struct")
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}
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return nil
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}
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