Commented helpers package

helpers/content.go

@@ -11,7 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//Package helpers implements general utility functions that work with and on content.
+//Package helpers implements general utility functions that work with and on content. The helper functions defined here
+//lay down the foundation of how Hugo works with files, filepaths and does string operations on content.
 package helpers
 
 import (
@@ -30,7 +31,7 @@ import (
 // Length of the summary that Hugo extracts from a content.
 var SummaryLength = 70
 
-// Custom divider "<!--more-->" let's user define where summarization ends.
+// Custom divider <!--more--> let's user define where summarization ends.
 var SummaryDivider = []byte("<!--more-->")
 
 //StripHTML accepts a string, strips out all HTML tags and returns it.
@@ -174,10 +175,12 @@ func RenderBytes(content []byte, pagefmt string, documentId string) []byte {
 	}
 }
 
+// TotalWords returns an int of the total number of words in a given content.
 func TotalWords(s string) int {
 	return len(strings.Fields(s))
 }
 
+//WordCount takes content and returns a map of words and count of each word.
 func WordCount(s string) map[string]int {
 	m := make(map[string]int)
 	for _, f := range strings.Fields(s) {
@@ -187,10 +190,12 @@ func WordCount(s string) map[string]int {
 	return m
 }
 
+//RemoveSummaryDivider removes summary-divider <!--more--> from content.
 func RemoveSummaryDivider(content []byte) []byte {
 	return bytes.Replace(content, SummaryDivider, []byte(""), -1)
 }
 
+//TruncateWords takes content and na int and shortens down the number of words in the content down to the number of int.
 func TruncateWords(s string, max int) string {
 	words := strings.Fields(s)
 	if max > len(words) {
@@ -200,6 +205,7 @@ func TruncateWords(s string, max int) string {
 	return strings.Join(words[:max], " ")
 }
 
+//TruncateWordsToWholeSentence takes content and an int and returns entire sentences from content, delimited by the int.
 func TruncateWordsToWholeSentence(s string, max int) string {
 	words := strings.Fields(s)
 	if max > len(words) {

helpers/general.go

@@ -64,22 +64,26 @@ func GuessType(in string) string {
 	return "unknown"
 }
 
+//ReaderToBytes takes an io.Reader argument, reads from it and returns bytes.
 func ReaderToBytes(lines io.Reader) []byte {
 	b := new(bytes.Buffer)
 	b.ReadFrom(lines)
 	return b.Bytes()
 }
 
+//ReaderToString is the same as ReaderToBytes, but returns a string.
 func ReaderToString(lines io.Reader) string {
 	b := new(bytes.Buffer)
 	b.ReadFrom(lines)
 	return b.String()
 }
 
+//StringToReader does the opposite of ReaderToString.
 func StringToReader(in string) io.Reader {
 	return strings.NewReader(in)
 }
 
+//BytesToReader does the opposite of ReaderToBytes.
 func BytesToReader(in []byte) io.Reader {
 	return bytes.NewReader(in)
 }
@@ -98,6 +102,7 @@ func SliceToLower(s []string) []string {
 	return l
 }
 
+//Md5String takes a string and returns a MD5 Hash of it.
 func Md5String(f string) string {
 	h := md5.New()
 	h.Write([]byte(f))

helpers/path.go

@@ -65,6 +65,7 @@ func UnicodeSanitize(s string) string {
 	return string(target)
 }
 
+//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 {
 	f, _ := FileAndExt(path)
 	return f + "." + newExt
@@ -257,9 +258,10 @@ func PathPrep(ugly bool, in string) string {
 	}
 }
 
-// /section/name.html -> /section/name/index.html
-// /section/name/  -> /section/name/index.html
-// /section/name/index.html -> /section/name/index.html
+// Same as PrettifyUrlPath() but for paths.
+// 	/section/name.html becomes /section/name/index.html
+// 	/section/name/  becomes /section/name/index.html
+// 	/section/name/index.html becomes /section/name/index.html
 func PrettifyPath(in string) string {
 	if filepath.Ext(in) == "" {
 		// /section/name/  -> /section/name/index.html
@@ -279,7 +281,7 @@ func PrettifyPath(in string) string {
 	}
 }
 
-//FindCWD returns the current working directory from where the Hugo executable is run from.
+//FindCWD returns the current working directory from where the Hugo executable is run.
 func FindCWD() (string, error) {
 	serverFile, err := filepath.Abs(os.Args[0])
 
@@ -303,6 +305,7 @@ func FindCWD() (string, error) {
 	return path, nil
 }
 
+//Same as WriteToDisk but checks to see if file/directory already exists.
 func SafeWriteToDisk(inpath string, r io.Reader, fs afero.Fs) (err error) {
 	dir, _ := filepath.Split(inpath)
 	ospath := filepath.FromSlash(dir)
@@ -332,6 +335,7 @@ func SafeWriteToDisk(inpath string, r io.Reader, fs afero.Fs) (err error) {
 	return
 }
 
+// Writes content to disk.
 func WriteToDisk(inpath string, r io.Reader, fs afero.Fs) (err error) {
 	dir, _ := filepath.Split(inpath)
 	ospath := filepath.FromSlash(dir)

helpers/pygments.go

@@ -25,6 +25,7 @@ import (
 
 const pygmentsBin = "pygmentize"
 
+//HasPygments checks to see if Pygments is installed and available on the system.
 func HasPygments() bool {
 	if _, err := exec.LookPath(pygmentsBin); err != nil {
 		return false
@@ -32,6 +33,7 @@ func HasPygments() bool {
 	return true
 }
 
+//Highlight takes some code and returns highlighted code.
 func Highlight(code string, lexer string) string {
 
 	if !HasPygments() {