diff options
Diffstat (limited to 'vendor/github.com/hashicorp/hcl/hcl/fmtcmd/fmtcmd.go')
-rw-r--r-- | vendor/github.com/hashicorp/hcl/hcl/fmtcmd/fmtcmd.go | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/vendor/github.com/hashicorp/hcl/hcl/fmtcmd/fmtcmd.go b/vendor/github.com/hashicorp/hcl/hcl/fmtcmd/fmtcmd.go deleted file mode 100644 index 2380d71e3..000000000 --- a/vendor/github.com/hashicorp/hcl/hcl/fmtcmd/fmtcmd.go +++ /dev/null @@ -1,162 +0,0 @@ -// Derivative work from: -// - https://golang.org/src/cmd/gofmt/gofmt.go -// - https://github.com/fatih/hclfmt - -package fmtcmd - -import ( - "bytes" - "errors" - "fmt" - "io" - "io/ioutil" - "os" - "os/exec" - "path/filepath" - "strings" - - "github.com/hashicorp/hcl/hcl/printer" -) - -var ( - ErrWriteStdin = errors.New("cannot use write option with standard input") -) - -type Options struct { - List bool // list files whose formatting differs - Write bool // write result to (source) file instead of stdout - Diff bool // display diffs of formatting changes -} - -func isValidFile(f os.FileInfo, extensions []string) bool { - if !f.IsDir() && !strings.HasPrefix(f.Name(), ".") { - for _, ext := range extensions { - if strings.HasSuffix(f.Name(), "."+ext) { - return true - } - } - } - - return false -} - -// 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 fmt.Errorf("In %s: %s", filename, err) - } - - 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 -} - -func walkDir(path string, extensions []string, stdout io.Writer, opts Options) error { - visitFile := func(path string, f os.FileInfo, err error) error { - if err == nil && isValidFile(f, extensions) { - err = processFile(path, nil, stdout, false, opts) - } - return err - } - - return filepath.Walk(path, visitFile) -} - -func Run( - paths, extensions []string, - stdin io.Reader, - stdout io.Writer, - opts Options, -) error { - if len(paths) == 0 { - if opts.Write { - return ErrWriteStdin - } - if err := processFile("<standard input>", stdin, stdout, true, opts); err != nil { - return err - } - return nil - } - - for _, path := range paths { - switch dir, err := os.Stat(path); { - case err != nil: - return err - case dir.IsDir(): - if err := walkDir(path, extensions, stdout, opts); err != nil { - return err - } - default: - if err := processFile(path, nil, stdout, false, opts); err != nil { - return err - } - } - } - - return nil -} - -func diff(b1, b2 []byte) (data []byte, err error) { - f1, err := ioutil.TempFile("", "") - if err != nil { - return - } - defer os.Remove(f1.Name()) - defer f1.Close() - - f2, err := ioutil.TempFile("", "") - if err != nil { - return - } - defer os.Remove(f2.Name()) - defer f2.Close() - - f1.Write(b1) - f2.Write(b2) - - data, err = exec.Command("diff", "-u", f1.Name(), f2.Name()).CombinedOutput() - if len(data) > 0 { - // diff exits with a non-zero status when the files don't match. - // Ignore that failure as long as we get output. - err = nil - } - return -} |