Kyle Isom
0fe52afbb2
Loads defaults from ~/.config/mcrctl.toml (or XDG_CONFIG_HOME). Resolution order: flag > env (MCR_TOKEN) > config file. Adds --config flag to specify an explicit path. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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"os"
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"path/filepath"
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toml "github.com/pelletier/go-toml/v2"
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)
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// config holds CLI defaults loaded from a TOML file.
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type config struct {
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Server string `toml:"server"`
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GRPC string `toml:"grpc"`
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Token string `toml:"token"`
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CACert string `toml:"ca_cert"`
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}
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// loadConfig reads a TOML config file from the given path. If path is
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// empty it searches the default location (~/.config/mcrctl.toml). A
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// missing file at the default location is not an error — an explicit
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// --config path that doesn't exist is.
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func loadConfig(path string) (config, error) {
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explicit := path != ""
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if !explicit {
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path = defaultConfigPath()
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}
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data, err := os.ReadFile(path) //nolint:gosec // operator-supplied config path
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if err != nil {
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if !explicit && os.IsNotExist(err) {
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return config{}, nil
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}
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return config{}, fmt.Errorf("reading config: %w", err)
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}
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var cfg config
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if err := toml.Unmarshal(data, &cfg); err != nil {
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return config{}, fmt.Errorf("parsing config %s: %w", path, err)
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}
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return cfg, nil
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}
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// defaultConfigPath returns ~/.config/mcrctl.toml, respecting
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// XDG_CONFIG_HOME if set.
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func defaultConfigPath() string {
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dir := os.Getenv("XDG_CONFIG_HOME")
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if dir == "" {
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home, err := os.UserHomeDir()
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if err != nil {
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return "mcrctl.toml"
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}
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dir = filepath.Join(home, ".config")
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}
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return filepath.Join(dir, "mcrctl.toml")
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}
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