helpers

package
v0.125.5 Latest Latest
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 Go to latest Published: May 1, 2024 License: Apache-2.0 Imports: 40 Imported by: 730

Documentation

Overview

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 and filepaths, and perform string operations on content.

Index

Constants

View Source 
const FilePathSeparator = string(filepath.Separator)

FilePathSeparator as defined by os.Separator.

Variables

This section is empty.

Functions

func BytesToHTML 

func BytesToHTML(b []byte) template.HTML

BytesToHTML converts bytes to type template.HTML.

func DirExists 

func DirExists(path string, fs afero.Fs) (bool, error)

DirExists checks if a path exists and is a directory.

func Emojify 

func Emojify(source []byte) []byte

Emojify "emojifies" the input source. Note that the input byte slice will be modified if needed. See http://www.emoji-cheat-sheet.com/

func Exists 

func Exists(path string, fs afero.Fs) (bool, error)

Exists checks if a file or directory exists.

func ExtractRootPaths 

func ExtractRootPaths(paths []string) []string

ExtractRootPaths extracts the root paths from the supplied list of paths. The resulting root path will not contain any file separators, but there may be duplicates. So "/content/section/" becomes "content"

func ExtractTOC 

func ExtractTOC(content []byte) (newcontent []byte, toc []byte)

ExtractTOC extracts Table of Contents from content.

func FindCWD 

func FindCWD() (string, error)

FindCWD returns the current working directory from where the Hugo executable is run.

func FirstUpper 

func FirstUpper(s string) string

FirstUpper returns a string with the first character as upper case.

func FormatByteCount added in v0.123.0 

func FormatByteCount(bc uint64) string

FormatByteCount pretty formats b.

func GetCacheDir added in v0.54.0 

func GetCacheDir(fs afero.Fs, cacheDir string) (string, error)

GetCacheDir returns a cache dir from the given filesystem and config. The dir will be created if it does not exist.

func GetDottedRelativePath 

func GetDottedRelativePath(inPath string) string

GetDottedRelativePath expects a relative path starting after the content directory. It returns a relative path with dots ("..") navigating up the path structure.

func GetTempDir 

func GetTempDir(subPath string, fs afero.Fs) string

GetTempDir returns a temporary directory with the given sub path.

func GetTitleFunc added in v0.27.1 

func GetTitleFunc(style string) func(s string) string

GetTitleFunc returns a func that can be used to transform a string to title case.

The supported styles are

- "Go" (strings.Title) - "AP" (see https://www.apstylebook.com/) - "Chicago" (see https://www.chicagomanualofstyle.org/home.html) - "FirstUpper" (only the first character is upper case) - "None" (no transformation)

If an unknown or empty style is provided, AP style is what you get.

func HasStringsPrefix added in v0.25.1 

func HasStringsPrefix(s, prefix []string) bool

HasStringsPrefix tests whether the string slice s begins with prefix slice s.

func HasStringsSuffix added in v0.25.1 

func HasStringsSuffix(s, suffix []string) bool

HasStringsSuffix tests whether the string slice s ends with suffix slice s.

func IsDir 

func IsDir(path string, fs afero.Fs) (bool, error)

IsDir checks if a given path is a directory.

func IsEmpty 

func IsEmpty(path string, fs afero.Fs) (bool, error)

IsEmpty checks if a given path is empty, meaning it doesn't contain any regular files.

func IsWhitespace 

func IsWhitespace(r rune) bool

IsWhitespace determines if the given rune is whitespace.

func MD5FromReader added in v0.54.0 

func MD5FromReader(r io.Reader) (string, error)

MD5FromReader creates a MD5 hash from the given reader.

func MD5FromReaderFast added in v0.123.0 

func MD5FromReaderFast(r io.ReadSeeker) (string, int64, error)

MD5FromReaderFast creates a MD5 hash from the given file. It only reads parts of the file for speed, so don't use it if the files are very subtly different. It will not close the file. It will return the MD5 hash and the size of r in bytes.

func MD5String added in v0.32.1 

func MD5String(f string) string

MD5String takes a string and returns its MD5 hash.

func MakePathRelative added in v0.112.0 

func MakePathRelative(inPath string, possibleDirectories ...string) (string, error)

MakeTitleInPath converts the path given to a suitable title, trimming whitespace

func MakeTitle 

func MakeTitle(inpath string) string

MakeTitle converts the path given to a suitable title, trimming whitespace and replacing hyphens with whitespace.

func OpenFileForWriting added in v0.47.1 

func OpenFileForWriting(fs afero.Fs, filename string) (afero.File, error)

OpenFileForWriting opens or creates the given file. If the target directory does not exist, it gets created.

func OpenFilesForWriting added in v0.47.1 

func OpenFilesForWriting(fs afero.Fs, filenames ...string) (io.WriteCloser, error)

OpenFilesForWriting opens all the given filenames for writing.

func PrintFs added in v0.42.1 

func PrintFs(fs afero.Fs, path string, w io.Writer)

PrintFs prints the given filesystem to the given writer starting from the given path. This is useful for debugging.

func ProcessingStatsTable added in v0.32.1 

func ProcessingStatsTable(w io.Writer, stats ...*ProcessingStats)

ProcessingStatsTable writes a table-formatted representation of stats to w.

func ReaderContains 

func ReaderContains(r io.Reader, subslice []byte) bool

ReaderContains reports whether subslice is within r.

func ReaderToBytes 

func ReaderToBytes(lines io.Reader) []byte

ReaderToBytes takes an io.Reader argument, reads from it and returns bytes.

func ReaderToString 

func ReaderToString(lines io.Reader) string

ReaderToString is the same as ReaderToBytes, but returns a string.

func SafeWriteToDisk 

func SafeWriteToDisk(inpath string, r io.Reader, fs afero.Fs) (err error)

SafeWriteToDisk is the same as WriteToDisk but it also checks to see if file/directory already exists.

func SliceToLower 

func SliceToLower(s []string) []string

SliceToLower goes through the source slice and lowers all values.

func TCPListen added in v0.96.0 

func TCPListen() (net.Listener, *net.TCPAddr, error)

TCPListen starts listening on a valid TCP port.

func TotalWords 

func TotalWords(s string) int

TotalWords counts instance of one or more consecutive white space characters, as defined by unicode.IsSpace, in s. This is a cheaper way of word counting than the obvious len(strings.Fields(s)).

func UniqueStrings 

func UniqueStrings(s []string) []string

UniqueStrings returns a new slice with any duplicates removed.

func UniqueStringsReuse added in v0.56.0 

func UniqueStringsReuse(s []string) []string

UniqueStringsReuse returns a slice with any duplicates removed. It will modify the input slice.

func UniqueStringsSorted added in v0.56.0 

func UniqueStringsSorted(s []string) []string

UniqueStringsSorted returns a sorted slice with any duplicates removed. It will modify the input slice.

func Walk added in v0.123.0 

func Walk(fs afero.Fs, root string, walker hugofs.WalkFunc) error

Walk walks the file tree rooted at root, calling walkFn for each file or directory in the tree, including root.

func WriteToDisk 

func WriteToDisk(inpath string, r io.Reader, fs afero.Fs) (err error)

WriteToDisk writes content to disk.

Types

type ContentSpec added in v0.20.1 

type ContentSpec struct {
	Converters markup.ConverterProvider

	Cfg config.AllProvider
	// contains filtered or unexported fields
}

ContentSpec provides functionality to render markdown content.

func NewContentSpec added in v0.20.1 

func NewContentSpec(cfg config.AllProvider, logger loggers.Logger, contentFs afero.Fs, ex *hexec.Exec) (*ContentSpec, error)

NewContentSpec returns a ContentSpec initialized with the appropriate fields from the given config.Provider.

func (*ContentSpec) ResolveMarkup added in v0.60.0 

func (c *ContentSpec) ResolveMarkup(in string) string

func (*ContentSpec) SanitizeAnchorName added in v0.62.2 

func (c *ContentSpec) SanitizeAnchorName(s string) string

func (*ContentSpec) TrimShortHTML added in v0.55.0 

func (c *ContentSpec) TrimShortHTML(input []byte, markup string) []byte

TrimShortHTML removes the outer tags from HTML input where (a) the opening tag is present only once with the input, and (b) the opening and closing tags wrap the input after white space removal.

func (*ContentSpec) TruncateWordsByRune added in v0.30.1 

func (c *ContentSpec) TruncateWordsByRune(in []string) (string, bool)

TruncateWordsByRune truncates words by runes.

func (*ContentSpec) TruncateWordsToWholeSentence added in v0.30.1 

func (c *ContentSpec) TruncateWordsToWholeSentence(s string) (string, bool)

TruncateWordsToWholeSentence takes content and truncates to whole sentence limited by max number of words. It also returns whether it is truncated.

type NamedSlice added in v0.56.0 

type NamedSlice struct {
	Name  string
	Slice []string
}

func ExtractAndGroupRootPaths added in v0.56.0 

func ExtractAndGroupRootPaths(paths []string) []NamedSlice

func (NamedSlice) String added in v0.56.0 

func (n NamedSlice) String() string

type PathSpec 

type PathSpec struct {
	*paths.Paths
	*filesystems.BaseFs

	ProcessingStats *ProcessingStats

	// The file systems to use
	Fs *hugofs.Fs

	// The config provider to use
	Cfg config.AllProvider
}

PathSpec holds methods that decides how paths in URLs and files in Hugo should look like.

func NewPathSpec added in v0.20.1 

func NewPathSpec(fs *hugofs.Fs, cfg config.AllProvider, logger loggers.Logger) (*PathSpec, error)

NewPathSpec creates a new PathSpec from the given filesystems and language.

func NewPathSpecWithBaseBaseFsProvided added in v0.42.1 

func NewPathSpecWithBaseBaseFsProvided(fs *hugofs.Fs, cfg config.AllProvider, logger loggers.Logger, baseBaseFs *filesystems.BaseFs) (*PathSpec, error)

NewPathSpecWithBaseBaseFsProvided creates a new PathSpec from the given filesystems and language. If an existing BaseFs is provided, parts of that is reused.

func (*PathSpec) AbsURL 

func (p *PathSpec) AbsURL(in string, addLanguage bool) string

AbsURL creates an absolute URL from the relative path given and the BaseURL set in config.

func (*PathSpec) IsAbsURL added in v0.114.0 

func (p *PathSpec) IsAbsURL(in string) (bool, error)

func (*PathSpec) MakePath 

func (p *PathSpec) MakePath(s string) string

MakePath takes a string with any characters and replace it so the string could be used in a path. It does so by creating a Unicode-sanitized string, with the spaces replaced, whilst preserving the original casing of the string. E.g. Social Media -> Social-Media

func (*PathSpec) MakePathSanitized 

func (p *PathSpec) MakePathSanitized(s string) string

MakePathSanitized creates a Unicode-sanitized string, with the spaces replaced

func (*PathSpec) MakePathsSanitized added in v0.55.0 

func (p *PathSpec) MakePathsSanitized(paths []string)

MakePathsSanitized applies MakePathSanitized on every item in the slice

func (*PathSpec) PermalinkForBaseURL added in v0.32.1 

func (p *PathSpec) PermalinkForBaseURL(link, baseURL string) string

PermalinkForBaseURL creates a permalink from the given link and baseURL.

func (*PathSpec) PrependBasePath added in v0.20.1 

func (p *PathSpec) PrependBasePath(rel string, isAbs bool) string

PrependBasePath prepends any baseURL sub-folder to the given resource

func (*PathSpec) RelURL 

func (p *PathSpec) RelURL(in string, addLanguage bool) string

func (*PathSpec) URLEscape added in v0.20.1 

func (p *PathSpec) URLEscape(uri string) string

URLEscape escapes unicode letters.

func (*PathSpec) URLize 

func (p *PathSpec) URLize(uri string) string

URLize is similar to MakePath, but with Unicode handling Example: 

uri: Vim (text editor)
urlize: vim-text-editor

func (*PathSpec) URLizeFilename added in v0.20.1 

func (p *PathSpec) URLizeFilename(filename string) string

URLizeFilename creates an URL from a filename by escaping unicode letters and turn any filepath separator into forward slashes.

type ProcessingStats added in v0.32.1 

type ProcessingStats struct {
	Name string

	Pages           uint64
	PaginatorPages  uint64
	Static          uint64
	ProcessedImages uint64
	Files           uint64
	Aliases         uint64
	Cleaned         uint64
}

ProcessingStats represents statistics about a site build.

func NewProcessingStats added in v0.32.1 

func NewProcessingStats(name string) *ProcessingStats

NewProcessingStats returns a new ProcessingStats instance.

func (*ProcessingStats) Add added in v0.32.1 

func (s *ProcessingStats) Add(counter *uint64, amount int)

Add adds an amount to a given counter.

func (*ProcessingStats) Incr added in v0.32.1 

func (s *ProcessingStats) Incr(counter *uint64)

Incr increments a given counter.

func (*ProcessingStats) Table added in v0.32.1 

func (s *ProcessingStats) Table(w io.Writer)

Table writes a table-formatted representation of the stats in a ProcessingStats instance to w.

Source Files

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