Writes a private SSH key encoded in an environment variable
to a file in ~/.ssh.
Only run in non-interactive settings and if the environment variable
exists and is non-empty.
step_install_ssh_keys(name = "id_rsa")[string]
Name of the environment variable and the target file, default: "id_rsa".
travis::use_travis_deploy(), travis::use_tic()
Other steps: step_add_to_drat,
step_add_to_known_hosts,
step_build_pkgdown,
step_do_push_deploy,
step_hello_world,
step_install_pkg,
step_push_deploy,
step_run_code,
step_setup_push_deploy,
step_setup_ssh,
step_test_ssh,
step_write_text_file