1 files changed, 0 insertions, 371 deletions
diff --git a/vendor/github.com/tdewolff/minify/v2/minify.go b/vendor/github.com/tdewolff/minify/v2/minify.go
deleted file mode 100644
index db747e397..000000000
--- a/vendor/github.com/tdewolff/minify/v2/minify.go
+++ /dev/null
@@ -1,371 +0,0 @@
-// Package minify relates MIME type to minifiers. Several minifiers are provided in the subpackages.
-package minify
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"mime"
-	"net/http"
-	"net/url"
-	"os"
-	"os/exec"
-	"path"
-	"regexp"
-	"strings"
-	"sync"
-
-	"github.com/tdewolff/parse/v2"
-	"github.com/tdewolff/parse/v2/buffer"
-)
-
-// Warning is used to report usage warnings such as using a deprecated feature
-var Warning = log.New(os.Stderr, "WARNING: ", 0)
-
-// ErrNotExist is returned when no minifier exists for a given mimetype.
-var ErrNotExist = errors.New("minifier does not exist for mimetype")
-
-// ErrClosedWriter is returned when writing to a closed writer.
-var ErrClosedWriter = errors.New("write on closed writer")
-
-////////////////////////////////////////////////////////////////
-
-// MinifierFunc is a function that implements Minifer.
-type MinifierFunc func(*M, io.Writer, io.Reader, map[string]string) error
-
-// Minify calls f(m, w, r, params)
-func (f MinifierFunc) Minify(m *M, w io.Writer, r io.Reader, params map[string]string) error {
-	return f(m, w, r, params)
-}
-
-// Minifier is the interface for minifiers.
-// The *M parameter is used for minifying embedded resources, such as JS within HTML.
-type Minifier interface {
-	Minify(*M, io.Writer, io.Reader, map[string]string) error
-}
-
-////////////////////////////////////////////////////////////////
-
-type patternMinifier struct {
-	pattern *regexp.Regexp
-	Minifier
-}
-
-type cmdMinifier struct {
-	cmd *exec.Cmd
-}
-
-var cmdArgExtension = regexp.MustCompile(`^\.[0-9a-zA-Z]+`)
-
-func (c *cmdMinifier) Minify(_ *M, w io.Writer, r io.Reader, _ map[string]string) error {
-	cmd := &exec.Cmd{}
-	*cmd = *c.cmd // concurrency safety
-
-	var in, out *os.File
-	for i, arg := range cmd.Args {
-		if j := strings.Index(arg, "$in"); j != -1 {
-			var err error
-			ext := cmdArgExtension.FindString(arg[j+3:])
-			if in, err = ioutil.TempFile("", "minify-in-*"+ext); err != nil {
-				return err
-			}
-			cmd.Args[i] = arg[:j] + in.Name() + arg[j+3+len(ext):]
-		} else if j := strings.Index(arg, "$out"); j != -1 {
-			var err error
-			ext := cmdArgExtension.FindString(arg[j+4:])
-			if out, err = ioutil.TempFile("", "minify-out-*"+ext); err != nil {
-				return err
-			}
-			cmd.Args[i] = arg[:j] + out.Name() + arg[j+4+len(ext):]
-		}
-	}
-
-	if in == nil {
-		cmd.Stdin = r
-	} else if _, err := io.Copy(in, r); err != nil {
-		return err
-	}
-	if out == nil {
-		cmd.Stdout = w
-	} else {
-		defer io.Copy(w, out)
-	}
-	stderr := &bytes.Buffer{}
-	cmd.Stderr = stderr
-
-	err := cmd.Run()
-	if _, ok := err.(*exec.ExitError); ok {
-		if stderr.Len() != 0 {
-			err = fmt.Errorf("%s", stderr.String())
-		}
-		err = fmt.Errorf("command %s failed: %w", cmd.Path, err)
-	}
-	return err
-}
-
-////////////////////////////////////////////////////////////////
-
-// M holds a map of mimetype => function to allow recursive minifier calls of the minifier functions.
-type M struct {
-	mutex   sync.RWMutex
-	literal map[string]Minifier
-	pattern []patternMinifier
-
-	URL *url.URL
-}
-
-// New returns a new M.
-func New() *M {
-	return &M{
-		sync.RWMutex{},
-		map[string]Minifier{},
-		[]patternMinifier{},
-		nil,
-	}
-}
-
-// Add adds a minifier to the mimetype => function map (unsafe for concurrent use).
-func (m *M) Add(mimetype string, minifier Minifier) {
-	m.mutex.Lock()
-	m.literal[mimetype] = minifier
-	m.mutex.Unlock()
-}
-
-// AddFunc adds a minify function to the mimetype => function map (unsafe for concurrent use).
-func (m *M) AddFunc(mimetype string, minifier MinifierFunc) {
-	m.mutex.Lock()
-	m.literal[mimetype] = minifier
-	m.mutex.Unlock()
-}
-
-// AddRegexp adds a minifier to the mimetype => function map (unsafe for concurrent use).
-func (m *M) AddRegexp(pattern *regexp.Regexp, minifier Minifier) {
-	m.mutex.Lock()
-	m.pattern = append(m.pattern, patternMinifier{pattern, minifier})
-	m.mutex.Unlock()
-}
-
-// AddFuncRegexp adds a minify function to the mimetype => function map (unsafe for concurrent use).
-func (m *M) AddFuncRegexp(pattern *regexp.Regexp, minifier MinifierFunc) {
-	m.mutex.Lock()
-	m.pattern = append(m.pattern, patternMinifier{pattern, minifier})
-	m.mutex.Unlock()
-}
-
-// AddCmd adds a minify function to the mimetype => function map (unsafe for concurrent use) that executes a command to process the minification.
-// It allows the use of external tools like ClosureCompiler, UglifyCSS, etc. for a specific mimetype.
-func (m *M) AddCmd(mimetype string, cmd *exec.Cmd) {
-	m.mutex.Lock()
-	m.literal[mimetype] = &cmdMinifier{cmd}
-	m.mutex.Unlock()
-}
-
-// AddCmdRegexp adds a minify function to the mimetype => function map (unsafe for concurrent use) that executes a command to process the minification.
-// It allows the use of external tools like ClosureCompiler, UglifyCSS, etc. for a specific mimetype regular expression.
-func (m *M) AddCmdRegexp(pattern *regexp.Regexp, cmd *exec.Cmd) {
-	m.mutex.Lock()
-	m.pattern = append(m.pattern, patternMinifier{pattern, &cmdMinifier{cmd}})
-	m.mutex.Unlock()
-}
-
-// Match returns the pattern and minifier that gets matched with the mediatype.
-// It returns nil when no matching minifier exists.
-// It has the same matching algorithm as Minify.
-func (m *M) Match(mediatype string) (string, map[string]string, MinifierFunc) {
-	m.mutex.RLock()
-	defer m.mutex.RUnlock()
-
-	mimetype, params := parse.Mediatype([]byte(mediatype))
-	if minifier, ok := m.literal[string(mimetype)]; ok { // string conversion is optimized away
-		return string(mimetype), params, minifier.Minify
-	}
-
-	for _, minifier := range m.pattern {
-		if minifier.pattern.Match(mimetype) {
-			return minifier.pattern.String(), params, minifier.Minify
-		}
-	}
-	return string(mimetype), params, nil
-}
-
-// Minify minifies the content of a Reader and writes it to a Writer (safe for concurrent use).
-// An error is returned when no such mimetype exists (ErrNotExist) or when an error occurred in the minifier function.
-// Mediatype may take the form of 'text/plain', 'text/*', '*/*' or 'text/plain; charset=UTF-8; version=2.0'.
-func (m *M) Minify(mediatype string, w io.Writer, r io.Reader) error {
-	mimetype, params := parse.Mediatype([]byte(mediatype))
-	return m.MinifyMimetype(mimetype, w, r, params)
-}
-
-// MinifyMimetype minifies the content of a Reader and writes it to a Writer (safe for concurrent use).
-// It is a lower level version of Minify and requires the mediatype to be split up into mimetype and parameters.
-// It is mostly used internally by minifiers because it is faster (no need to convert a byte-slice to string and vice versa).
-func (m *M) MinifyMimetype(mimetype []byte, w io.Writer, r io.Reader, params map[string]string) error {
-	m.mutex.RLock()
-	defer m.mutex.RUnlock()
-
-	if minifier, ok := m.literal[string(mimetype)]; ok { // string conversion is optimized away
-		return minifier.Minify(m, w, r, params)
-	}
-	for _, minifier := range m.pattern {
-		if minifier.pattern.Match(mimetype) {
-			return minifier.Minify(m, w, r, params)
-		}
-	}
-	return ErrNotExist
-}
-
-// Bytes minifies an array of bytes (safe for concurrent use). When an error occurs it return the original array and the error.
-// It returns an error when no such mimetype exists (ErrNotExist) or any error occurred in the minifier function.
-func (m *M) Bytes(mediatype string, v []byte) ([]byte, error) {
-	out := buffer.NewWriter(make([]byte, 0, len(v)))
-	if err := m.Minify(mediatype, out, buffer.NewReader(v)); err != nil {
-		return v, err
-	}
-	return out.Bytes(), nil
-}
-
-// String minifies a string (safe for concurrent use). When an error occurs it return the original string and the error.
-// It returns an error when no such mimetype exists (ErrNotExist) or any error occurred in the minifier function.
-func (m *M) String(mediatype string, v string) (string, error) {
-	out := buffer.NewWriter(make([]byte, 0, len(v)))
-	if err := m.Minify(mediatype, out, buffer.NewReader([]byte(v))); err != nil {
-		return v, err
-	}
-	return string(out.Bytes()), nil
-}
-
-// Reader wraps a Reader interface and minifies the stream.
-// Errors from the minifier are returned by the reader.
-func (m *M) Reader(mediatype string, r io.Reader) io.Reader {
-	pr, pw := io.Pipe()
-	go func() {
-		if err := m.Minify(mediatype, pw, r); err != nil {
-			pw.CloseWithError(err)
-		} else {
-			pw.Close()
-		}
-	}()
-	return pr
-}
-
-// writer makes sure that errors from the minifier are passed down through Close (can be blocking).
-type writer struct {
-	pw     *io.PipeWriter
-	wg     sync.WaitGroup
-	err    error
-	closed bool
-}
-
-// Write intercepts any writes to the writer.
-func (w *writer) Write(b []byte) (int, error) {
-	if w.closed {
-		return 0, ErrClosedWriter
-	}
-	n, err := w.pw.Write(b)
-	if w.err != nil {
-		err = w.err
-	}
-	return n, err
-}
-
-// Close must be called when writing has finished. It returns the error from the minifier.
-func (w *writer) Close() error {
-	if !w.closed {
-		w.pw.Close()
-		w.wg.Wait()
-		w.closed = true
-	}
-	return w.err
-}
-
-// Writer wraps a Writer interface and minifies the stream.
-// Errors from the minifier are returned by Close on the writer.
-// The writer must be closed explicitly.
-func (m *M) Writer(mediatype string, w io.Writer) *writer {
-	pr, pw := io.Pipe()
-	mw := &writer{pw, sync.WaitGroup{}, nil, false}
-	mw.wg.Add(1)
-	go func() {
-		defer mw.wg.Done()
-
-		if err := m.Minify(mediatype, w, pr); err != nil {
-			mw.err = err
-		}
-		pr.Close()
-	}()
-	return mw
-}
-
-// responseWriter wraps an http.ResponseWriter and makes sure that errors from the minifier are passed down through Close (can be blocking).
-// All writes to the response writer are intercepted and minified on the fly.
-// http.ResponseWriter loses all functionality such as Pusher, Hijacker, Flusher, ...
-type responseWriter struct {
-	http.ResponseWriter
-
-	writer    *writer
-	m         *M
-	mediatype string
-}
-
-// WriteHeader intercepts any header writes and removes the Content-Length header.
-func (w *responseWriter) WriteHeader(status int) {
-	w.ResponseWriter.Header().Del("Content-Length")
-	w.ResponseWriter.WriteHeader(status)
-}
-
-// Write intercepts any writes to the response writer.
-// The first write will extract the Content-Type as the mediatype. Otherwise it falls back to the RequestURI extension.
-func (w *responseWriter) Write(b []byte) (int, error) {
-	if w.writer == nil {
-		// first write
-		if mediatype := w.ResponseWriter.Header().Get("Content-Type"); mediatype != "" {
-			w.mediatype = mediatype
-		}
-		w.writer = w.m.Writer(w.mediatype, w.ResponseWriter)
-	}
-	return w.writer.Write(b)
-}
-
-// Close must be called when writing has finished. It returns the error from the minifier.
-func (w *responseWriter) Close() error {
-	if w.writer != nil {
-		return w.writer.Close()
-	}
-	return nil
-}
-
-// ResponseWriter minifies any writes to the http.ResponseWriter.
-// http.ResponseWriter loses all functionality such as Pusher, Hijacker, Flusher, ...
-// Minification might be slower than just sending the original file! Caching is advised.
-func (m *M) ResponseWriter(w http.ResponseWriter, r *http.Request) *responseWriter {
-	mediatype := mime.TypeByExtension(path.Ext(r.RequestURI))
-	return &responseWriter{w, nil, m, mediatype}
-}
-
-// Middleware provides a middleware function that minifies content on the fly by intercepting writes to http.ResponseWriter.
-// http.ResponseWriter loses all functionality such as Pusher, Hijacker, Flusher, ...
-// Minification might be slower than just sending the original file! Caching is advised.
-func (m *M) Middleware(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		mw := m.ResponseWriter(w, r)
-		next.ServeHTTP(mw, r)
-		mw.Close()
-	})
-}
-
-// MiddlewareWithError provides a middleware function that minifies content on the fly by intercepting writes to http.ResponseWriter. The error function allows handling minification errors.
-// http.ResponseWriter loses all functionality such as Pusher, Hijacker, Flusher, ...
-// Minification might be slower than just sending the original file! Caching is advised.
-func (m *M) MiddlewareWithError(next http.Handler, errorFunc func(w http.ResponseWriter, r *http.Request, err error)) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		mw := m.ResponseWriter(w, r)
-		next.ServeHTTP(mw, r)
-		if err := mw.Close(); err != nil {
-			errorFunc(w, r, err)
-			return
-		}
-	})
-}