Move all pagewriter related code to dedicated pagewriter package

pkg/app/pagewriter/error_page.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"fmt"

pkg/app/pagewriter/error_page_test.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"errors"

pkg/app/pagewriter/pagewriter.go

@@ -1,29 +1,29 @@
-package app
+package pagewriter
 
 import (
 	"fmt"
 	"net/http"
 )
 
-// PageWriter is an interface for rendering html templates for both sign-in and
+// Writer is an interface for rendering html templates for both sign-in and
 // error pages.
 // It can also be used to write errors for the http.ReverseProxy used in the
 // upstream package.
-type PageWriter interface {
+type Writer interface {
 	WriteSignInPage(rw http.ResponseWriter, redirectURL string)
 	WriteErrorPage(rw http.ResponseWriter, status int, redirectURL string, appError string, messages ...interface{})
 	ProxyErrorHandler(rw http.ResponseWriter, req *http.Request, proxyErr error)
 }
 
-// pageWriter implements the PageWriter interface
+// pageWriter implements the Writer interface
 type pageWriter struct {
 	*errorPageWriter
 	*signInPageWriter
 }
 
-// PageWriterOpts contains all options required to configure the template
+// Opts contains all options required to configure the template
 // rendering within OAuth2 Proxy.
-type PageWriterOpts struct {
+type Opts struct {
 	// TemplatesPath is the path from which to load custom templates for the sign-in and error pages.
 	TemplatesPath string
 
@@ -51,9 +51,9 @@ type PageWriterOpts struct {
 	SignInMessage string
 }
 
-// NewPageWriter constructs a PageWriter from the options given to allow
+// NewWriter constructs a Writer from the options given to allow
 // rendering of sign-in and error pages.
-func NewPageWriter(opts PageWriterOpts) (PageWriter, error) {
+func NewWriter(opts Opts) (Writer, error) {
 	templates, err := loadTemplates(opts.TemplatesPath)
 	if err != nil {
 		return nil, fmt.Errorf("error loading templates: %v", err)

pkg/app/pagewriter/pagewriter_suite_test.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"testing"

pkg/app/pagewriter/pagewriter_test.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"io/ioutil"
@@ -10,13 +10,13 @@ import (
 	. "github.com/onsi/gomega"
 )
 
-var _ = Describe("PageWriter", func() {
-	Context("NewPageWriter", func() {
-		var writer PageWriter
-		var opts PageWriterOpts
+var _ = Describe("Writer", func() {
+	Context("NewWriter", func() {
+		var writer Writer
+		var opts Opts
 
 		BeforeEach(func() {
-			opts = PageWriterOpts{
+			opts = Opts{
 				TemplatesPath:    "",
 				ProxyPrefix:      "/prefix",
 				Footer:           "<Footer>",
@@ -31,7 +31,7 @@ var _ = Describe("PageWriter", func() {
 		Context("With no custom templates", func() {
 			BeforeEach(func() {
 				var err error
-				writer, err = NewPageWriter(opts)
+				writer, err = NewWriter(opts)
 				Expect(err).ToNot(HaveOccurred())
 			})
 
@@ -70,7 +70,7 @@ var _ = Describe("PageWriter", func() {
 
 				opts.TemplatesPath = customDir
 
-				writer, err = NewPageWriter(opts)
+				writer, err = NewWriter(opts)
 				Expect(err).ToNot(HaveOccurred())
 			})
 
@@ -117,7 +117,7 @@ var _ = Describe("PageWriter", func() {
 			})
 
 			It("Should return an error", func() {
-				writer, err := NewPageWriter(opts)
+				writer, err := NewWriter(opts)
 				Expect(err).To(MatchError(ContainSubstring("template: sign_in.html:1: function \"Custom\" not defined")))
 				Expect(writer).To(BeNil())
 			})

pkg/app/pagewriter/sign_in_page.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"html/template"

pkg/app/pagewriter/sign_in_page_test.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"html/template"

pkg/app/pagewriter/templates.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"fmt"

pkg/app/pagewriter/templates_test.go

@@ -1,4 +1,4 @@
-package app
+package pagewriter
 
 import (
 	"bytes"