66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package command
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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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"github.com/hashicorp/hcl"
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"github.com/mitchellh/go-homedir"
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)
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const (
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// DefaultConfigPath is the default path to the configuration file
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DefaultConfigPath = "~/.vault"
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// ConfigPathEnv is the environment variable that can be used to
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// override where the Vault configuration is.
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ConfigPathEnv = "VAULT_CONFIG_PATH"
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)
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// Config is the CLI configuration for Vault that can be specified via
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// a `$HOME/.vault` file which is HCL-formatted (therefore HCL or JSON).
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type Config struct {
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// TokenHelper is the executable/command that is executed for storing
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// and retrieving the authentication token for the Vault CLI. If this
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// is not specified, then vault token-disk will be used, which stores
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// the token on disk unencrypted.
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TokenHelper string `hcl:"token_helper"`
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}
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// LoadConfig reads the configuration from the given path. If path is
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// empty, then the default path will be used, or the environment variable
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// if set.
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func LoadConfig(path string) (*Config, error) {
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if path == "" {
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path = DefaultConfigPath
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}
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if v := os.Getenv(ConfigPathEnv); v != "" {
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path = v
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}
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path, err := homedir.Expand(path)
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if err != nil {
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return nil, fmt.Errorf("Error expanding config path: %s", err)
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}
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var config Config
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contents, err := ioutil.ReadFile(path)
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if !os.IsNotExist(err) {
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if err != nil {
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return nil, err
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}
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obj, err := hcl.Parse(string(contents))
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if err != nil {
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return nil, err
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}
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if err := hcl.DecodeObject(&config, obj); err != nil {
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return nil, err
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}
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}
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return &config, nil
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}
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