func main() {
flags := struct {
help bool
pretty bool
inFile string
outFile string
}{}
flag.BoolVar(&flags.help, "help", false, "print help and exit")
flag.BoolVar(&flags.pretty, "pretty", false, "indent the output file")
flag.StringVar(&flags.inFile, "in-file", "/dev/stdin", "input file (YAML)")
flag.StringVar(&flags.outFile, "out-file", "/dev/stdout", "output file (JSON)")
flag.Parse()
if flags.help {
flag.Usage()
return
}
cfg := config.Config{}
dataIn, err := ioutil.ReadFile(flags.inFile)
if err != nil {
stderr("Failed to read: %v", err)
os.Exit(1)
}
if err := yaml.Unmarshal(dataIn, &cfg); err != nil {
stderr("Failed to unmarshal input: %v", err)
os.Exit(1)
}
var inCfg interface{}
if err := yaml.Unmarshal(dataIn, &inCfg); err != nil {
stderr("Failed to unmarshal input: %v", err)
os.Exit(1)
}
if hasUnrecognizedKeys(inCfg, reflect.TypeOf(cfg)) {
stderr("Unrecognized keys in input, aborting.")
os.Exit(1)
}
var dataOut []byte
if flags.pretty {
dataOut, err = json.MarshalIndent(&cfg, "", " ")
dataOut = append(dataOut, '\n')
} else {
dataOut, err = json.Marshal(&cfg)
}
if err != nil {
stderr("Failed to marshal output: %v", err)
os.Exit(1)
}
if err := ioutil.WriteFile(flags.outFile, dataOut, 0640); err != nil {
stderr("Failed to write: %v", err)
os.Exit(1)
}
}
func TestHasUnrecognizedKeys(t *testing.T) {
tests := []struct {
in string
unrec bool
}{
{
in: "ignition_version: 1",
unrec: false,
},
{
in: "ignition_version: 1\npasswd:\n users:\n - name: foobar\n",
unrec: false,
},
{
in: "foo: bar",
unrec: true,
},
{
in: "ignition_version: 1\npasswd:\n users:\n - naem: foobar\n",
unrec: true,
},
}
for i, tt := range tests {
var cfg interface{}
if err := yaml.Unmarshal([]byte(tt.in), &cfg); err != nil {
t.Errorf("%d: unmarshal failed: %v", i, err)
continue
}
if unrec := hasUnrecognizedKeys(cfg, reflect.TypeOf(config.Config{})); unrec != tt.unrec {
t.Errorf("%d: expected %v got %v", i, tt.unrec, unrec)
}
}
}
func main() {
flag.Parse()
if *flagHelp {
flag.Usage()
os.Exit(1)
}
cfg := config.Config{}
b, err := ioutil.ReadFile(*flagInFile)
if err != nil {
stderr("Failed to read: %v", err)
os.Exit(2)
}
if err := yaml.Unmarshal(b, &cfg); err != nil {
stderr("Failed to unmarshal input: %v", err)
os.Exit(3)
}
b, err = json.Marshal(&cfg)
if err != nil {
stderr("Failed to marshal output: %v", err)
os.Exit(4)
}
if err := ioutil.WriteFile(*flagOutFile, b, 0640); err != nil {
stderr("Failed to write: %v", err)
os.Exit(5)
}
os.Exit(0)
}
func TestDevicePathUnmarshalYAML(t *testing.T) {
type in struct {
data string
}
type out struct {
device DevicePath
err error
}
tests := []struct {
in in
out out
}{
{
in: in{data: `"/path"`},
out: out{device: DevicePath("/path")},
},
{
in: in{data: `"bad"`},
out: out{device: DevicePath("bad"), err: errors.New("device path not absolute")},
},
}
for i, test := range tests {
var device DevicePath
err := yaml.Unmarshal([]byte(test.in.data), &device)
if !reflect.DeepEqual(test.out.err, err) {
t.Errorf("#%d: bad error: want %v, got %v", i, test.out.err, err)
}
if !reflect.DeepEqual(test.out.device, device) {
t.Errorf("#%d: bad device: want %#v, got %#v", i, test.out.device, device)
}
}
}
func TestMkfsOptionsUnmarshalYAML(t *testing.T) {
type in struct {
data string
}
type out struct {
options MkfsOptions
err error
}
tests := []struct {
in in
out out
}{
{
in: in{data: `["--label=ROOT"]`},
out: out{options: MkfsOptions([]string{"--label=ROOT"})},
},
}
for i, test := range tests {
var options MkfsOptions
err := yaml.Unmarshal([]byte(test.in.data), &options)
if !reflect.DeepEqual(test.out.err, err) {
t.Errorf("#%d: bad error: want %v, got %v", i, test.out.err, err)
}
if !reflect.DeepEqual(test.out.options, options) {
t.Errorf("#%d: bad device: want %#v, got %#v", i, test.out.options, options)
}
}
}
func TestFilesystemFormatUnmarshalYAML(t *testing.T) {
type in struct {
data string
}
type out struct {
format FilesystemFormat
err error
}
tests := []struct {
in in
out out
}{
{
in: in{data: `"ext4"`},
out: out{format: FilesystemFormat("ext4")},
},
{
in: in{data: `"bad"`},
out: out{format: FilesystemFormat("bad"), err: errors.New("invalid filesystem format")},
},
}
for i, test := range tests {
var format FilesystemFormat
err := yaml.Unmarshal([]byte(test.in.data), &format)
if !reflect.DeepEqual(test.out.err, err) {
t.Errorf("#%d: bad error: want %v, got %v", i, test.out.err, err)
}
if !reflect.DeepEqual(test.out.format, format) {
t.Errorf("#%d: bad device: want %#v, got %#v", i, test.out.format, format)
}
}
}
func TestNetworkdUnitNameUnmarshalYAML(t *testing.T) {
type in struct {
data string
}
type out struct {
unit NetworkdUnitName
err error
}
tests := []struct {
in in
out out
}{
{
in: in{data: `"test.network"`},
out: out{unit: NetworkdUnitName("test.network")},
},
{
in: in{data: `"test.link"`},
out: out{unit: NetworkdUnitName("test.link")},
},
{
in: in{data: `"test.netdev"`},
out: out{unit: NetworkdUnitName("test.netdev")},
},
{
in: in{data: `"test.blah"`},
out: out{err: errors.New("invalid networkd unit extension")},
},
}
for i, test := range tests {
var unit NetworkdUnitName
err := yaml.Unmarshal([]byte(test.in.data), &unit)
if !reflect.DeepEqual(test.out.err, err) {
t.Errorf("#%d: bad error: want %v, got %v", i, test.out.err, err)
}
if err != nil {
continue
}
if !reflect.DeepEqual(test.out.unit, unit) {
t.Errorf("#%d: bad unit: want %#v, got %#v", i, test.out.unit, unit)
}
}
}
func TestFileModeUnmarshalYAML(t *testing.T) {
type in struct {
data string
}
type out struct {
mode FileMode
err error
}
tests := []struct {
in in
out out
}{
{
in: in{data: `0644`},
out: out{mode: FileMode(0644)},
},
{
in: in{data: `0420`},
out: out{mode: FileMode(0420)},
},
{
in: in{data: `017777`},
out: out{mode: FileMode(017777), err: ErrFileIllegalMode},
},
}
for i, test := range tests {
var mode FileMode
err := yaml.Unmarshal([]byte(test.in.data), &mode)
if !reflect.DeepEqual(test.out.err, err) {
t.Errorf("#%d: bad error: want %v, got %v", i, test.out.err, err)
}
if !reflect.DeepEqual(test.out.mode, mode) {
t.Errorf("#%d: bad mode: want %#o, got %#o", i, test.out.mode, mode)
}
}
}