From 8ffb773f43c8dc54801ca1d111854e7e881c93c9 Mon Sep 17 00:00:00 2001
From: Frédéric Guillot <fred@miniflux.net>
Date: Sun, 19 Nov 2017 21:10:04 -0800
Subject: First commit

---
 .../github.com/tdewolff/minify/cmd/minify/util.go  | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 vendor/github.com/tdewolff/minify/cmd/minify/util.go

(limited to 'vendor/github.com/tdewolff/minify/cmd/minify/util.go')

diff --git a/vendor/github.com/tdewolff/minify/cmd/minify/util.go b/vendor/github.com/tdewolff/minify/cmd/minify/util.go
new file mode 100644
index 0000000..d8db16e
--- /dev/null
+++ b/vendor/github.com/tdewolff/minify/cmd/minify/util.go
@@ -0,0 +1,46 @@
+package main
+
+import "io"
+
+type countingReader struct {
+	io.Reader
+	N int
+}
+
+func (r *countingReader) Read(p []byte) (int, error) {
+	n, err := r.Reader.Read(p)
+	r.N += n
+	return n, err
+}
+
+type countingWriter struct {
+	io.Writer
+	N int
+}
+
+func (w *countingWriter) Write(p []byte) (int, error) {
+	n, err := w.Writer.Write(p)
+	w.N += n
+	return n, err
+}
+
+type prependReader struct {
+	io.ReadCloser
+	prepend []byte
+}
+
+func NewPrependReader(r io.ReadCloser, prepend []byte) *prependReader {
+	return &prependReader{r, prepend}
+}
+
+func (r *prependReader) Read(p []byte) (int, error) {
+	if r.prepend != nil {
+		n := copy(p, r.prepend)
+		if n != len(r.prepend) {
+			return n, io.ErrShortBuffer
+		}
+		r.prepend = nil
+		return n, nil
+	}
+	return r.ReadCloser.Read(p)
+}
-- 
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