Vendor Update (#16121)

* update github.com/PuerkitoBio/goquery

* update github.com/alecthomas/chroma

* update github.com/blevesearch/bleve/v2

* update github.com/caddyserver/certmagic

* update github.com/go-enry/go-enry/v2

* update github.com/go-git/go-billy/v5

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* update github.com/go-redis/redis/v8

* update github.com/go-testfixtures/testfixtures/v3

* update github.com/jaytaylor/html2text

* update github.com/json-iterator/go

* update github.com/klauspost/compress

* update github.com/markbates/goth

* update github.com/mattn/go-isatty

* update github.com/mholt/archiver/v3

* update github.com/microcosm-cc/bluemonday

* update github.com/minio/minio-go/v7

* update github.com/prometheus/client_golang

* update github.com/unrolled/render

* update github.com/xanzy/go-gitlab

* update github.com/yuin/goldmark

* update github.com/yuin/goldmark-highlighting

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

vendor/github.com/acomagu/bufpipe/README.md

@@ -0,0 +1,42 @@
+# bufpipe: Buffered Pipe
+
+[![CircleCI](https://img.shields.io/circleci/build/github/acomagu/bufpipe.svg?style=flat-square)](https://circleci.com/gh/acomagu/bufpipe) [![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](https://godoc.org/github.com/acomagu/bufpipe)
+
+The buffered version of io.Pipe. It's safe for concurrent use.
+
+## How does it differ from io.Pipe?
+
+Writes never block because the pipe has variable-sized buffer.
+
+```Go
+r, w := bufpipe.New(nil)
+io.WriteString(w, "abc") // No blocking.
+io.WriteString(w, "def") // No blocking, too.
+w.Close()
+io.Copy(os.Stdout, r)
+// Output: abcdef
+```
+
+[Playground](https://play.golang.org/p/PdyBAS3pVob)
+
+## How does it differ from bytes.Buffer?
+
+Reads block if the internal buffer is empty until the writer is closed.
+
+```Go
+r, w := bufpipe.New(nil)
+
+done := make(chan struct{})
+go func() {
+	io.Copy(os.Stdout, r) // The reads block until the writer is closed.
+	done <- struct{}{}
+}()
+
+io.WriteString(w, "abc")
+io.WriteString(w, "def")
+w.Close()
+<-done
+// Output: abcdef
+```
+
+[Playground](https://play.golang.org/p/UppmyLeRgX6)

vendor/github.com/acomagu/bufpipe/bufpipe.go

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+package bufpipe
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"sync"
+)
+
+// ErrClosedPipe is the error used for read or write operations on a closed pipe.
+var ErrClosedPipe = errors.New("bufpipe: read/write on closed pipe")
+
+type pipe struct {
+	cond       *sync.Cond
+	buf        *bytes.Buffer
+	rerr, werr error
+}
+
+// A PipeReader is the read half of a pipe.
+type PipeReader struct {
+	*pipe
+}
+
+// A PipeWriter is the write half of a pipe.
+type PipeWriter struct {
+	*pipe
+}
+
+// New creates a synchronous pipe using buf as its initial contents. It can be
+// used to connect code expecting an io.Reader with code expecting an io.Writer.
+//
+// Unlike io.Pipe, writes never block because the internal buffer has variable
+// size. Reads block only when the buffer is empty.
+//
+// It is safe to call Read and Write in parallel with each other or with Close.
+// Parallel calls to Read and parallel calls to Write are also safe: the
+// individual calls will be gated sequentially.
+//
+// The new pipe takes ownership of buf, and the caller should not use buf after
+// this call. New is intended to prepare a PipeReader to read existing data. It
+// can also be used to set the initial size of the internal buffer for writing.
+// To do that, buf should have the desired capacity but a length of zero.
+func New(buf []byte) (*PipeReader, *PipeWriter) {
+	p := &pipe{
+		buf:  bytes.NewBuffer(buf),
+		cond: sync.NewCond(new(sync.Mutex)),
+	}
+	return &PipeReader{
+			pipe: p,
+		}, &PipeWriter{
+			pipe: p,
+		}
+}
+
+// Read implements the standard Read interface: it reads data from the pipe,
+// reading from the internal buffer, otherwise blocking until a writer arrives
+// or the write end is closed. If the write end is closed with an error, that
+// error is returned as err; otherwise err is io.EOF.
+func (r *PipeReader) Read(data []byte) (int, error) {
+	r.cond.L.Lock()
+	defer r.cond.L.Unlock()
+
+RETRY:
+	n, err := r.buf.Read(data)
+	// If not closed and no read, wait for writing.
+	if err == io.EOF && r.rerr == nil && n == 0 {
+		r.cond.Wait()
+		goto RETRY
+	}
+	if err == io.EOF {
+		return n, r.rerr
+	}
+	return n, err
+}
+
+// Close closes the reader; subsequent writes from the write half of the pipe
+// will return error ErrClosedPipe.
+func (r *PipeReader) Close() error {
+	return r.CloseWithError(nil)
+}
+
+// CloseWithError closes the reader; subsequent writes to the write half of the
+// pipe will return the error err.
+func (r *PipeReader) CloseWithError(err error) error {
+	r.cond.L.Lock()
+	defer r.cond.L.Unlock()
+
+	if err == nil {
+		err = ErrClosedPipe
+	}
+	r.werr = err
+	return nil
+}
+
+// Write implements the standard Write interface: it writes data to the internal
+// buffer. If the read end is closed with an error, that err is returned as err;
+// otherwise err is ErrClosedPipe.
+func (w *PipeWriter) Write(data []byte) (int, error) {
+	w.cond.L.Lock()
+	defer w.cond.L.Unlock()
+
+	if w.werr != nil {
+		return 0, w.werr
+	}
+
+	n, err := w.buf.Write(data)
+	w.cond.Signal()
+	return n, err
+}
+
+// Close closes the writer; subsequent reads from the read half of the pipe will
+// return io.EOF once the internal buffer get empty.
+func (w *PipeWriter) Close() error {
+	return w.CloseWithError(nil)
+}
+
+// Close closes the writer; subsequent reads from the read half of the pipe will
+// return err once the internal buffer get empty.
+func (w *PipeWriter) CloseWithError(err error) error {
+	w.cond.L.Lock()
+	defer w.cond.L.Unlock()
+
+	if err == nil {
+		err = io.EOF
+	}
+	w.rerr = err
+	return nil
+}

vendor/github.com/acomagu/bufpipe/doc.go

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+// Package bufpipe provides a IO pipe, has variable-sized buffer.
+package bufpipe

vendor/github.com/acomagu/bufpipe/go.mod

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+module github.com/acomagu/bufpipe
+
+go 1.12
+
+require github.com/matryer/is v1.2.0

vendor/github.com/acomagu/bufpipe/go.sum

@@ -0,0 +1,2 @@
+github.com/matryer/is v1.2.0 h1:92UTHpy8CDwaJ08GqLDzhhuixiBUUD1p3AU6PHddz4A=
+github.com/matryer/is v1.2.0/go.mod h1:2fLPjFQM9rhQ15aVEtbuwhJinnOqrmgXPNdZsdwlWXA=