Add travis, codecov settings (#1)

* Add travis, codecov settings

* Fix coverage.sh

* Fix typo

* Add codeclimate settings

* Fix some settings

.codeclimate.yml

@@ -0,0 +1,7 @@
+plugins:
+  gofmt:
+    enabled: true
+  golint:
+    enabled: true
+  govet:
+    enabled: true

.gitignore

@@ -1,4 +1,10 @@
 .*
 !.gitignore
 
+# go
 vendor
+
+# ci
+!.travis.yml
+!.codeclimate.yml
+coverage.txt

.travis.yml

@@ -0,0 +1,13 @@
+language: go
+sudo: false
+go:
+  - "1.9.x"
+  - "1.10.x"
+before_install:
+  - go get github.com/golang/dep/cmd/dep
+install:
+  - $GOPATH/bin/dep ensure -v -vendor-only
+script:
+  - ./coverage.sh
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -2,10 +2,19 @@
 
 `image/jpeg` base pure go image utility.
 
+[![GoDoc](https://godoc.org/github.com/go-oss/image?status.svg)](https://godoc.org/github.com/go-oss/image)
+[![Build Status](https://travis-ci.org/go-oss/image.svg?branch=master)](https://travis-ci.org/go-oss/image)
+[![codecov](https://codecov.io/gh/go-oss/image/branch/master/graph/badge.svg)](https://codecov.io/gh/go-oss/image)
+[![Maintainability](https://api.codeclimate.com/v1/badges/1d34d57d8c26f502ce7d/maintainability)](https://codeclimate.com/github/go-oss/image/maintainability)
+[![Go Report Card](https://goreportcard.com/badge/github.com/go-oss/image)](https://goreportcard.com/report/github.com/go-oss/image)
+
 ## features
 - Decode jpeg with quality value.
 - Apply EXIF orientation to image pixels.
 
+## compatibility
+- Go 1.9+
+
 ## usage
 To install `imageutil` package:
 
@@ -21,7 +30,6 @@ go get github.com/go-oss/image/jpeg
 
 ### example
 ```
-reader := base64.NewDecoder(base64.StdEncoding, strings.NewReader(data))
 img, err := imageutil.Decode(reader)
 if err != nil {
     log.Fatal(err)

coverage.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -xeu
+echo "" > coverage.txt
+
+for d in $(go list ./...); do
+	go test -race -coverprofile=profile.out -covermode=atomic $d
+	if [ -f profile.out ]; then
+		cat profile.out >> coverage.txt
+		rm profile.out
+	fi
+done

imageutil/decode.go

@@ -56,7 +56,7 @@ func Decode(file io.Reader) (*Image, error) {
 
 		// check EXIF and apply orientation
 		meta, decodeErr := exif.Decode(buff)
-		// if error occured, exif is invalid and discarded.
+		// if error occurred, exif is invalid and discarded.
 		if decodeErr == nil {
 			newImg, _ := applyOrientation(img.Image, meta)
 			if newImg != nil {