all: Apply staticcheck recommendations

helpers/content.go

@@ -147,10 +147,8 @@ func newBlackfriday(config map[string]interface{}) *BlackFriday {
 		siteConfig[k] = v
 	}
 
-	if config != nil {
-		for k, v := range config {
-			siteConfig[k] = v
-		}
+	for k, v := range config {
+		siteConfig[k] = v
 	}
 
 	combinedConfig := &BlackFriday{}
@@ -755,7 +753,7 @@ func externallyRenderContent(ctx *RenderingContext, path string, args []string)
 	err := cmd.Run()
 	// Most external helpers exit w/ non-zero exit code only if severe, i.e.
 	// halting errors occurred. -> log stderr output regardless of state of err
-	for _, item := range strings.Split(string(cmderr.Bytes()), "\n") {
+	for _, item := range strings.Split(cmderr.String(), "\n") {
 		item := strings.TrimSpace(item)
 		if item != "" {
 			jww.ERROR.Printf("%s: %s", ctx.DocumentName, item)

helpers/emoji_test.go

@@ -80,7 +80,7 @@ func BenchmarkEmojiKyokomiFprint(b *testing.B) {
 		defer bufferpool.PutBuffer(buff)
 		emoji.Fprint(buff, string(in))
 
-		bc := make([]byte, buff.Len(), buff.Len())
+		bc := make([]byte, buff.Len())
 		copy(bc, buff.Bytes())
 		return bc
 	}

helpers/general.go

@@ -57,7 +57,7 @@ func FindAvailablePort() (*net.TCPAddr, error) {
 		if a, ok := addr.(*net.TCPAddr); ok {
 			return a, nil
 		}
-		return nil, fmt.Errorf("Unable to obtain a valid tcp port. %v", addr)
+		return nil, fmt.Errorf("unable to obtain a valid tcp port: %v", addr)
 	}
 	return nil, err
 }
@@ -128,7 +128,7 @@ func ReaderToBytes(lines io.Reader) []byte {
 
 	b.ReadFrom(lines)
 
-	bc := make([]byte, b.Len(), b.Len())
+	bc := make([]byte, b.Len())
 	copy(bc, b.Bytes())
 	return bc
 }
@@ -417,10 +417,8 @@ func NormalizeHugoFlags(f *pflag.FlagSet, name string) pflag.NormalizedName {
 	switch name {
 	case "baseUrl":
 		name = "baseURL"
-		break
 	case "uglyUrls":
 		name = "uglyURLs"
-		break
 	}
 	return pflag.NormalizedName(name)
 }

helpers/path.go

@@ -29,6 +29,7 @@ import (
 	"github.com/gohugoio/hugo/common/hugio"
 	_errors "github.com/pkg/errors"
 	"github.com/spf13/afero"
+	"golang.org/x/text/runes"
 	"golang.org/x/text/transform"
 	"golang.org/x/text/unicode/norm"
 )
@@ -155,7 +156,7 @@ func (p *PathSpec) UnicodeSanitize(s string) string {
 
 	if p.RemovePathAccents {
 		// remove accents - see https://blog.golang.org/normalization
-		t := transform.Chain(norm.NFD, transform.RemoveFunc(isMn), norm.NFC)
+		t := transform.Chain(norm.NFD, runes.Remove(runes.In(unicode.Mn)), norm.NFC)
 		result, _, _ = transform.String(t, string(target))
 	} else {
 		result = string(target)
@@ -164,10 +165,6 @@ func (p *PathSpec) UnicodeSanitize(s string) string {
 	return result
 }
 
-func isMn(r rune) bool {
-	return unicode.Is(unicode.Mn, r) // Mn: nonspacing marks
-}
-
 // ReplaceExtension takes a path and an extension, strips the old extension
 // and returns the path with the new extension.
 func ReplaceExtension(path string, newExt string) string {
@@ -208,7 +205,7 @@ func makePathRelative(inPath string, possibleDirectories ...string) (string, err
 			return strings.TrimPrefix(inPath, currentPath), nil
 		}
 	}
-	return inPath, errors.New("Can't extract relative path, unknown prefix")
+	return inPath, errors.New("can't extract relative path, unknown prefix")
 }
 
 // Should be good enough for Hugo.
@@ -403,15 +400,13 @@ func ExtractRootPaths(paths []string) []string {
 
 }
 
-var numInPathRe = regexp.MustCompile("\\.(\\d+)\\.")
-
 // FindCWD returns the current working directory from where the Hugo
 // executable is run.
 func FindCWD() (string, error) {
 	serverFile, err := filepath.Abs(os.Args[0])
 
 	if err != nil {
-		return "", fmt.Errorf("Can't get absolute path for executable: %v", err)
+		return "", fmt.Errorf("can't get absolute path for executable: %v", err)
 	}
 
 	path := filepath.Dir(serverFile)
@@ -437,7 +432,7 @@ func SymbolicWalk(fs afero.Fs, root string, walker filepath.WalkFunc) error {
 
 	// Sanity check
 	if root != "" && len(root) < 4 {
-		return errors.New("Path is too short")
+		return errors.New("path is too short")
 	}
 
 	// Handle the root first
@@ -448,7 +443,7 @@ func SymbolicWalk(fs afero.Fs, root string, walker filepath.WalkFunc) error {
 	}
 
 	if !fileInfo.IsDir() {
-		return fmt.Errorf("Cannot walk regular file %s", root)
+		return fmt.Errorf("cannot walk regular file %s", root)
 	}
 
 	if err := walker(realPath, fileInfo, err); err != nil && err != filepath.SkipDir {

helpers/path_test.go

@@ -171,7 +171,7 @@ func TestGetRealPath(t *testing.T) {
 		t.Skip("Skip TestGetRealPath as os.Symlink needs administrator rights on Windows")
 	}
 
-	d1, err := ioutil.TempDir("", "d1")
+	d1, _ := ioutil.TempDir("", "d1")
 	defer os.Remove(d1)
 	fs := afero.NewOsFs()
 
@@ -418,6 +418,7 @@ func createNonZeroSizedFileInTempDir() (*os.File, error) {
 	f, err := createZeroSizedFileInTempDir()
 	if err != nil {
 		// no file ??
+		return nil, err
 	}
 	byteString := []byte("byteString")
 	err = ioutil.WriteFile(f.Name(), byteString, 0644)
@@ -430,10 +431,7 @@ func createNonZeroSizedFileInTempDir() (*os.File, error) {
 }
 
 func deleteFileInTempDir(f *os.File) {
-	err := os.Remove(f.Name())
-	if err != nil {
-		// now what?
-	}
+	_ = os.Remove(f.Name())
 }
 
 func createEmptyTempDir() (string, error) {
@@ -449,7 +447,7 @@ func createEmptyTempDir() (string, error) {
 func createTempDirWithZeroLengthFiles() (string, error) {
 	d, dirErr := createEmptyTempDir()
 	if dirErr != nil {
-		//now what?
+		return "", dirErr
 	}
 	filePrefix := "_path_test_"
 	_, fileErr := ioutil.TempFile(d, filePrefix) // dir is os.TempDir()
@@ -467,7 +465,7 @@ func createTempDirWithZeroLengthFiles() (string, error) {
 func createTempDirWithNonZeroLengthFiles() (string, error) {
 	d, dirErr := createEmptyTempDir()
 	if dirErr != nil {
-		//now what?
+		return "", dirErr
 	}
 	filePrefix := "_path_test_"
 	f, fileErr := ioutil.TempFile(d, filePrefix) // dir is os.TempDir()
@@ -494,10 +492,7 @@ func createTempDirWithNonZeroLengthFiles() (string, error) {
 }
 
 func deleteTempDir(d string) {
-	err := os.RemoveAll(d)
-	if err != nil {
-		// now what?
-	}
+	_ = os.RemoveAll(d)
 }
 
 func TestExists(t *testing.T) {

helpers/pygments.go

@@ -153,7 +153,7 @@ func (h highlighters) pygmentsHighlight(code, lang, optsStr string) (string, err
 		return code, err
 	}
 
-	str := string(normalizeExternalHelperLineFeeds([]byte(out.String())))
+	str := string(normalizeExternalHelperLineFeeds(out.Bytes()))
 
 	str = h.injectCodeTag(str, lang)
 
@@ -235,10 +235,8 @@ func parseOptions(defaults map[string]string, in string) (map[string]string, err
 	in = strings.Trim(in, " ")
 	opts := make(map[string]string)
 
-	if defaults != nil {
-		for k, v := range defaults {
-			opts[k] = v
-		}
+	for k, v := range defaults {
+		opts[k] = v
 	}
 
 	if in == "" {

helpers/url.go

@@ -142,7 +142,7 @@ func MakePermalink(host, plink string) *url.URL {
 	}
 
 	if p.Host != "" {
-		panic(fmt.Errorf("Can't make permalink from absolute link %q", plink))
+		panic(fmt.Errorf("can't make permalink from absolute link %q", plink))
 	}
 
 	base.Path = path.Join(base.Path, p.Path)