// If in == nil, the source is the contents of the file with the given filename.
func processFile(filename string, in io.Reader, out io.Writer, stdin bool) error {
if in == nil {
f, err := os.Open(filename)
if err != nil {
return err
}
defer f.Close()
in = f
}
src, err := ioutil.ReadAll(in)
if err != nil {
return err
}
res, err := printer.Format(src)
if err != nil {
return err
}
if *write {
err = ioutil.WriteFile(filename, res, 0644)
} else {
_, err = out.Write(res)
}
return err
}
// This will only work operate on []interface{}, map[string]interface{}, and
// primitive types.
func encodeHCL(i interface{}) ([]byte, error) {
state := &encodeState{}
err := state.encode(i)
if err != nil {
return nil, err
}
hcl := state.Bytes()
if len(hcl) == 0 {
return hcl, nil
}
// the HCL parser requires an assignment. Strip it off again later
fakeAssignment := append([]byte("X = "), hcl...)
// use the real hcl parser to verify our output, and format it canonically
hcl, err = printer.Format(fakeAssignment)
if err != nil {
return nil, err
}
// now strip that first assignment off
eq := regexp.MustCompile(`=\s+`).FindIndex(hcl)
return hcl[eq[1]:], nil
}
// If in == nil, the source is the contents of the file with the given filename.
func processFile(filename string, in io.Reader, out io.Writer, stdin bool, opts Options) error {
if in == nil {
f, err := os.Open(filename)
if err != nil {
return err
}
defer f.Close()
in = f
}
src, err := ioutil.ReadAll(in)
if err != nil {
return err
}
res, err := printer.Format(src)
if err != nil {
return err
}
// Files should end with newlines
res = append(res, []byte("\n")...)
if !bytes.Equal(src, res) {
// formatting has changed
if opts.List {
fmt.Fprintln(out, filename)
}
if opts.Write {
err = ioutil.WriteFile(filename, res, 0644)
if err != nil {
return err
}
}
if opts.Diff {
data, err := diff(src, res)
if err != nil {
return fmt.Errorf("computing diff: %s", err)
}
fmt.Fprintf(out, "diff a/%s b/%s\n", filename, filename)
out.Write(data)
}
}
if !opts.List && !opts.Write && !opts.Diff {
_, err = out.Write(res)
}
return err
}
