Introduced Go module support as v4, removed obsolete CloseNotifier() mechanism

This reintroduces support for Go modules, as v4.

CloseNotifier() is removed as it has been obsoleted, see https://golang.org/doc/go1.11#net/http

It was already NOT working (not sending signals) as of 1.11 the functionality was gone, we merely
deleted the functions that exposed it. If anyone still relies on it they should migrate to using
`c.Request().Context().Done()` instead.

Closes #1268, #1255

Author: alexaandru

README.md

@@ -4,12 +4,26 @@
 [![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/labstack/echo)
 [![Go Report Card](https://goreportcard.com/badge/github.com/labstack/echo?style=flat-square)](https://goreportcard.com/report/github.com/labstack/echo)
 [![Build Status](http://img.shields.io/travis/labstack/echo.svg?style=flat-square)](https://travis-ci.org/labstack/echo)
-[![Codecov](https://img.shields.io/codecov/c/github/labstack/echo.svg?style=flat-square)](https://codecov.io/gh/labstack/echo) 
+[![Codecov](https://img.shields.io/codecov/c/github/labstack/echo.svg?style=flat-square)](https://codecov.io/gh/labstack/echo)
 [![Join the chat at https://gitter.im/labstack/echo](https://img.shields.io/badge/gitter-join%20chat-brightgreen.svg?style=flat-square)](https://gitter.im/labstack/echo)
 [![Forum](https://img.shields.io/badge/community-forum-00afd1.svg?style=flat-square)](https://forum.labstack.com)
 [![Twitter](https://img.shields.io/badge/[email protected]?style=flat-square)](https://twitter.com/labstack)
 [![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/labstack/echo/master/LICENSE)
 
+## Supported Go versions
+
+As of version 4.0.0, Echo is available as a [Go module](https://github.com/golang/go/wiki/Modules).
+Therefore a Go version capable of understanding /vN suffixed imports is required:
+
+- 1.9.7+
+- 1.10.3+
+- 1.11+
+
+Any of these versions will allow you to import Echo as `github.com/labstack/echo/v4` which is the recommended
+way of using Echo going forward.
+
+For older versions, please use the latest v3 tag.
+
 ## Feature Overview
 
 - Optimized HTTP router which smartly prioritize routes
@@ -44,8 +58,8 @@ package main
 import (
 	"net/http"
 
-	"github.com/labstack/echo"
-	"github.com/labstack/echo/middleware"
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
 )
 
 func main() {
@@ -90,6 +104,7 @@ func hello(c echo.Context) error {
   - Improve/fix documentation
 
 ## Credits
+
 - [Vishal Rana](https://github.com/vishr) - Author
 - [Nitin Rana](https://github.com/nr17) - Consultant
 - [Contributors](https://github.com/labstack/echo/graphs/contributors)

echo.go

@@ -8,8 +8,8 @@ Example:
   import (
     "net/http"
 
-    "github.com/labstack/echo"
-    "github.com/labstack/echo/middleware"
+    "github.com/labstack/echo/v4"
+    "github.com/labstack/echo/v4/middleware"
   )
 
   // Handler
@@ -221,7 +221,7 @@ const (
 
 const (
 	// Version of Echo
-	Version = "3.3.11-dev"
+	Version = "4.0.0"
 	website = "https://echo.labstack.com"
 	// http://patorjk.com/software/taag/#p=display&f=Small%20Slant&t=Echo
 	banner = `

go.mod

@@ -0,0 +1,13 @@
+module github.com/labstack/echo/v4
+
+require (
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible
+	github.com/labstack/gommon v0.2.8
+	github.com/mattn/go-colorable v0.0.9 // indirect
+	github.com/mattn/go-isatty v0.0.4 // indirect
+	github.com/stretchr/testify v1.3.0
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4
+	golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664
+	golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc // indirect
+)

go.sum

@@ -0,0 +1,23 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/labstack/gommon v0.2.8 h1:JvRqmeZcfrHC5u6uVleB4NxxNbzx6gpbJiQknDbKQu0=
+github.com/labstack/gommon v0.2.8/go.mod h1:/tj9csK2iPSBvn+3NLM9e52usepMtrd5ilFYA+wQNJ4=
+github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
+github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
+github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
+github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4 h1:gKMu1Bf6QINDnvyZuTaACm9ofY+PRh+5vFz4oxBZeF8=
+github.com/valyala/fasttemplate v0.0.0-20170224212429-dcecefd839c4/go.mod h1:50wTf68f99/Zt14pr046Tgt3Lp2vLyFZKzbFXTOabXw=
+golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664 h1:YbZJ76lQ1BqNhVe7dKTSB67wDrc2VPRR75IyGyyPDX8=
+golang.org/x/crypto v0.0.0-20190130090550-b01c7a725664/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc h1:WiYx1rIFmx8c0mXAFtv5D/mHyKe1+jmuP7PViuwqwuQ=
+golang.org/x/sys v0.0.0-20190129075346-302c3dd5f1cc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=

middleware/basic_auth.go

@@ -5,7 +5,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 )
 
 type (

middleware/basic_auth_test.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 	"github.com/stretchr/testify/assert"
 )
 

middleware/body_dump.go

@@ -8,7 +8,7 @@ import (
 	"net"
 	"net/http"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 )
 
 type (
@@ -105,7 +105,3 @@ func (w *bodyDumpResponseWriter) Flush() {
 func (w *bodyDumpResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
 	return w.ResponseWriter.(http.Hijacker).Hijack()
 }
-
-func (w *bodyDumpResponseWriter) CloseNotify() <-chan bool {
-	return w.ResponseWriter.(http.CloseNotifier).CloseNotify()
-}

middleware/body_dump_test.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 	"github.com/stretchr/testify/assert"
 )
 

middleware/body_limit.go

@@ -5,7 +5,7 @@ import (
 	"io"
 	"sync"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 	"github.com/labstack/gommon/bytes"
 )
 

middleware/body_limit_test.go

@@ -7,7 +7,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/labstack/echo"
+	"github.com/labstack/echo/v4"
 	"github.com/stretchr/testify/assert"
 )