84 lines
1.6 KiB
Go
84 lines
1.6 KiB
Go
package config
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"gopkg.in/yaml.v2"
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)
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type Config struct {
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Opacity float64
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Font Font
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}
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type Font struct {
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Family string
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Size float64
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DPI float64
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}
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type ErrorFileNotFound struct {
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Path string
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}
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func (e *ErrorFileNotFound) Error() string {
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return fmt.Sprintf("file was not found at '%s'", e.Path)
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}
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func getConfigPath() (string, error) {
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return getPath("config.yaml")
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}
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func getPath(filename string) (string, error) {
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baseDir, err := os.UserConfigDir()
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if err != nil {
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return "", fmt.Errorf("config directory missing: %w", err)
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}
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return path.Join(baseDir, "darktile", filename), nil
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}
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func LoadConfig() (*Config, error) {
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configPath, err := getConfigPath()
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if err != nil {
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return nil, fmt.Errorf("failed to locate config path: %w", err)
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}
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if _, err := os.Stat(configPath); os.IsNotExist(err) {
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return nil, &ErrorFileNotFound{Path: configPath}
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}
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configData, err := ioutil.ReadFile(configPath)
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if err != nil {
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return nil, fmt.Errorf("failed to read config file at '%s': %w", configPath, err)
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}
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config := defaultConfig
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if err := yaml.Unmarshal(configData, &config); err != nil {
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return nil, fmt.Errorf("invalid config file at '%s': %w", configPath, err)
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}
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return &config, nil
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}
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func (c *Config) Save() (string, error) {
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configPath, err := getConfigPath()
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if err != nil {
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return "", fmt.Errorf("failed to locate config path: %w", err)
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}
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if err := os.MkdirAll(path.Dir(configPath), 0700); err != nil {
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return "", err
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}
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data, err := yaml.Marshal(c)
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if err != nil {
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return "", err
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}
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return configPath, ioutil.WriteFile(configPath, data, 0600)
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}
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