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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "path/filepath" | ||
| "regexp" | ||
|
|
||
| "github.com/princjef/gomarkdoc" | ||
| "github.com/princjef/gomarkdoc/lang" | ||
| "github.com/princjef/gomarkdoc/logger" | ||
| ) | ||
|
|
||
| func writeOutput(specs []*PackageSpec, opts commandOptions) error { | ||
| log := logger.New(getLogLevel(opts.verbosity)) | ||
|
|
||
| overrides, err := resolveOverrides(opts) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| out, err := gomarkdoc.NewRenderer(overrides...) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| header, err := resolveHeader(opts) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| footer, err := resolveFooter(opts) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| filePkgs := make(map[string][]*lang.Package) | ||
|
|
||
| for _, spec := range specs { | ||
| if spec.pkg == nil { | ||
| continue | ||
| } | ||
|
|
||
| filePkgs[spec.outputFile] = append(filePkgs[spec.outputFile], spec.pkg) | ||
| } | ||
|
|
||
| for fileName, pkgs := range filePkgs { | ||
| file := lang.NewFile(header, footer, pkgs) | ||
|
|
||
| text, err := out.File(file) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| switch { | ||
| case fileName == "": | ||
| fmt.Fprint(os.Stdout, text) | ||
| case opts.check: | ||
| var b bytes.Buffer | ||
| fmt.Fprint(&b, text) | ||
| if err := checkFile(&b, fileName); err != nil { | ||
| return err | ||
| } | ||
| default: | ||
| if opts.embed { | ||
| text = embedContents(log, fileName, text) | ||
| } | ||
|
|
||
| if err := writeFile(fileName, text); err != nil { | ||
| return fmt.Errorf("failed to write output file %s: %w", fileName, err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func writeFile(fileName string, text string) error { | ||
| folder := filepath.Dir(fileName) | ||
|
|
||
| if folder != "" { | ||
| if err := os.MkdirAll(folder, 0755); err != nil { | ||
| return fmt.Errorf("failed to create folder %s: %w", folder, err) | ||
| } | ||
| } | ||
|
|
||
| if err := ioutil.WriteFile(fileName, []byte(text), 0755); err != nil { | ||
| return fmt.Errorf("failed to write file %s: %w", fileName, err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func checkFile(b *bytes.Buffer, path string) error { | ||
| checkErr := errors.New("output does not match current files. Did you forget to run gomarkdoc?") | ||
|
|
||
| f, err := os.Open(path) | ||
| if err != nil { | ||
| if err == os.ErrNotExist { | ||
| return checkErr | ||
| } | ||
|
|
||
| return fmt.Errorf("failed to open file %s for checking: %w", path, err) | ||
| } | ||
|
|
||
| defer f.Close() | ||
|
|
||
| match, err := compare(b, f) | ||
| if err != nil { | ||
| return fmt.Errorf("failure while attempting to check contents of %s: %w", path, err) | ||
| } | ||
|
|
||
| if !match { | ||
| return checkErr | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| var ( | ||
| embedStandaloneRegex = regexp.MustCompile(`(?m:^ *)<!--\s*gomarkdoc:embed\s*-->(?m:\s*?$)`) | ||
| embedStartRegex = regexp.MustCompile( | ||
| `(?m:^ *)<!--\s*gomarkdoc:embed:start\s*-->(?s:.*?)<!--\s*gomarkdoc:embed:end\s*-->(?m:\s*?$)`, | ||
| ) | ||
| ) | ||
|
|
||
| func embedContents(log logger.Logger, fileName string, text string) string { | ||
| embedText := fmt.Sprintf("<!-- gomarkdoc:embed:start -->\n\n%s\n\n<!-- gomarkdoc:embed:end -->", text) | ||
|
|
||
| data, err := os.ReadFile(fileName) | ||
| if err != nil { | ||
| log.Debugf("unable to find output file %s for embedding. Creating a new file instead", fileName) | ||
| return embedText | ||
| } | ||
|
|
||
| var replacements int | ||
| data = embedStandaloneRegex.ReplaceAllFunc(data, func(_ []byte) []byte { | ||
| replacements++ | ||
| return []byte(embedText) | ||
| }) | ||
|
|
||
| data = embedStartRegex.ReplaceAllFunc(data, func(_ []byte) []byte { | ||
| replacements++ | ||
| return []byte(embedText) | ||
| }) | ||
|
|
||
| if replacements == 0 { | ||
| log.Debugf("no embed markers found. Appending documentation to the end of the file instead") | ||
| return fmt.Sprintf("%s\n\n%s", string(data), text) | ||
| } | ||
|
|
||
| return string(data) | ||
| } |
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