func setupGitSSH()

in cmd/git-sync/main.go [1065:1092]

• 22 lines of code
• 5 McCabe index (conditional complexity)

func setupGitSSH(setupKnownHosts bool) error {
	log.V(1).Info("setting up git SSH credentials")

	var pathToSSHSecret = *flSSHKeyFile
	var pathToSSHKnownHosts = *flSSHKnownHostsFile

	_, err := os.Stat(pathToSSHSecret)
	if err != nil {
		return fmt.Errorf("can't access SSH key: %w", err)
	}

	if setupKnownHosts {
		_, err = os.Stat(pathToSSHKnownHosts)
		if err != nil {
			return fmt.Errorf("can't access SSH known_hosts: %w", err)
		}
		err = os.Setenv("GIT_SSH_COMMAND", fmt.Sprintf("ssh -o UserKnownHostsFile=%s -i %s", pathToSSHKnownHosts, pathToSSHSecret))
	} else {
		err = os.Setenv("GIT_SSH_COMMAND", fmt.Sprintf("ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i %s", pathToSSHSecret))
	}

	// set env variable GIT_SSH_COMMAND to force git use customized ssh command
	if err != nil {
		return fmt.Errorf("can't set $GIT_SSH_COMMAND: %w", err)
	}

	return nil
}