Method parseEnvAndExcludeSpecialCases

internal/devbox/devbox.go:1117–1151

parseEnvAndExcludeSpecialCases converts env as []string to map[string]string In case of pure shell, it leaks HOME and it leaks PATH with some modifications

(currentEnv []string, pure bool)

// parseEnvAndExcludeSpecialCases converts env as []string to map[string]string
// In case of pure shell, it leaks HOME and it leaks PATH with some modifications
func (d *Devbox) parseEnvAndExcludeSpecialCases(currentEnv []string, pure bool) (map[string]string, error) {
	env := make(map[string]string, len(currentEnv))
	for _, kv := range currentEnv {
		key, val, found := strings.Cut(kv, "=")
		if !found {
			return nil, errors.Errorf("expected \"=\" in keyval: %s", kv)
		}
		if ignoreCurrentEnvVar[key] {
			continue
		}
		// handling special cases for pure shell
		// - HOME required for devbox binary to work
		// - PATH to find the nix installation. It is cleaned for pure mode below.
		// - TERM to enable colored text in the pure shell
		if !pure || key == "HOME" || key == "PATH" || key == "TERM" {
			env[key] = val
		}
	}

	// handling special case for PATH
	if pure {
		// Setting a custom env variable to differentiate pure and regular shell
		env["DEVBOX_PURE_SHELL"] = "1"
		// Finding nix executables in path and passing it through
		// As well as adding devbox itself to PATH
		// Both are needed for devbox commands inside pure shell to work
		nixPath, err := exec.LookPath("nix")
		if err != nil {
			return nil, errors.New("could not find any nix executable in PATH. Make sure Nix is installed and in PATH, then try again")
		}
		nixPath = filepath.Dir(nixPath)
		env["PATH"] = envpath.JoinPathLists(nixPath, dotdevboxBinPath(d))
	}
	return env, nil
}

func (d *Devbox) PluginManager() *plugin.Manager {
	return d.pluginManager