52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
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package dockercfg
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import (
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"encoding/json"
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"fmt"
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"os"
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"path/filepath"
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)
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// UserHomeConfigPath returns the path to the docker config in the current user's home dir.
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func UserHomeConfigPath() (string, error) {
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home, err := os.UserHomeDir()
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if err != nil {
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return "", fmt.Errorf("error looking up user home dir: %w", err)
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}
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return filepath.Join(home, ".docker", "config.json"), nil
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}
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// ConfigPath returns the path to the docker cli config.
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//
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// It will either use the DOCKER_CONFIG env var if set, or the value from `UserHomeConfigPath`
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// DOCKER_CONFIG would be the dir path where `config.json` is stored, this returns the path to config.json.
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func ConfigPath() (string, error) {
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if p := os.Getenv("DOCKER_CONFIG"); p != "" {
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return filepath.Join(p, "config.json"), nil
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}
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return UserHomeConfigPath()
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}
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// LoadDefaultConfig loads the docker cli config from the path returned from `ConfigPath`
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func LoadDefaultConfig() (Config, error) {
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var cfg Config
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p, err := ConfigPath()
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if err != nil {
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return cfg, err
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}
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return cfg, FromFile(p, &cfg)
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}
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// FromFile loads config from the specified path into cfg
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func FromFile(configPath string, cfg *Config) error {
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f, err := os.Open(configPath)
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if err != nil {
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return err
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}
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err = json.NewDecoder(f).Decode(&cfg)
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f.Close()
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return err
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}
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