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transform: Explicitly bind LiveReload to server port

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If hugo server is run on port 80 or 443, LiveReload does not
correctly bind to the same port, instead using port 35729.
This commit adds functionality to inform LiveReload of the
correct port to bind to.

See https://github.com/livereload/livereload-js/issues/16

Partially contributed by Jeff Minard (@chuyskywalker).

Fixes #2205
This commit is contained in:
Dragos Plesca 2016-06-16 19:43:47 +03:00 committed by Anthony Fok
parent 0ce6438268
commit 7e08d23eeb
2 changed files with 10 additions and 4 deletions
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9
transform/livereloadinject.go
View file

@ -16,18 +16,21 @@ package transform
import (
"bytes"
"fmt"
"github.com/spf13/viper"
)
func LiveReloadInject(ct contentTransformer) {
endBodyTag := "</body>"
match := []byte(endBodyTag)
replaceTemplate := `<script data-no-instant>document.write('<script src="/livereload.js?mindelay=10"></' + 'script>')</script>%s`
replace := []byte(fmt.Sprintf(replaceTemplate, endBodyTag))
port := viper.Get("port")
replaceTemplate := `<script data-no-instant>document.write('<script src="/livereload.js?port=%d&mindelay=10"></' + 'script>')</script>%s`
replace := []byte(fmt.Sprintf(replaceTemplate, port, endBodyTag))
newcontent := bytes.Replace(ct.Content(), match, replace, 1)
if len(newcontent) == len(ct.Content()) {
endBodyTag = "</BODY>"
replace := []byte(fmt.Sprintf(replaceTemplate, endBodyTag))
replace := []byte(fmt.Sprintf(replaceTemplate, port, endBodyTag))
match := []byte(endBodyTag)
newcontent = bytes.Replace(ct.Content(), match, replace, 1)
}

5
transform/livereloadinject_test.go
View file

@ -18,6 +18,8 @@ import (
"fmt"
"strings"
"testing"
"github.com/spf13/viper"
)
func TestLiveReloadInject(t *testing.T) {
@ -26,13 +28,14 @@ func TestLiveReloadInject(t *testing.T) {
}
func doTestLiveReloadInject(t *testing.T, bodyEndTag string) {
viper.Set("port", 1313)
out := new(bytes.Buffer)
in := strings.NewReader(bodyEndTag)
tr := NewChain(LiveReloadInject)
tr.Apply(out, in, []byte("path"))
expected := fmt.Sprintf(`<script data-no-instant>document.write('<script src="/livereload.js?mindelay=10"></' + 'script>')</script>%s`, bodyEndTag)
expected := fmt.Sprintf(`<script data-no-instant>document.write('<script src="/livereload.js?port=1313&mindelay=10"></' + 'script>')</script>%s`, bodyEndTag)
if string(out.Bytes()) != expected {
t.Errorf("Expected %s got %s", expected, string(out.Bytes()))
}