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transform/livereloadinject: Inject livereload script right after head if possible

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We used to insert the livereload script right before the closing body.

This dord  not work when combined with tools such as Turbolinks.

This commit changes it So we try to inject the script as early as possible.

Fixes #6821
This commit is contained in:
Bjørn Erik Pedersen
2020-01-29 12:46:18 +01:00
parent 281abb18ee
commit 8f08cdd0ac
2 changed files with 71 additions and 24 deletions
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42
transform/livereloadinject/livereloadinject_test.go
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@@ -15,27 +15,45 @@ package livereloadinject
import (
"bytes"
"fmt"
"strings"
"testing"
qt "github.com/frankban/quicktest"
"github.com/gohugoio/hugo/transform"
)
func TestLiveReloadInject(t *testing.T) {
doTestLiveReloadInject(t, "</body>")
doTestLiveReloadInject(t, "</BODY>")
}
c := qt.New(t)
func doTestLiveReloadInject(t *testing.T, bodyEndTag string) {
out := new(bytes.Buffer)
in := strings.NewReader(bodyEndTag)
expectBase := `<script data-no-instant>document.write('<script src="/livereload.js?port=1313&mindelay=10&v=2"></' + 'script>')</script>`
apply := func(s string) string {
out := new(bytes.Buffer)
in := strings.NewReader(s)
tr := transform.New(New(1313))
tr.Apply(out, in)
tr := transform.New(New(1313))
tr.Apply(out, in)
expected := fmt.Sprintf(`<script data-no-instant>document.write('<script src="/livereload.js?port=1313&mindelay=10&v=2"></' + 'script>')</script>%s`, bodyEndTag)
if out.String() != expected {
t.Errorf("Expected %s got %s", expected, out.String())
return out.String()
}
c.Run("Head lower", func(c *qt.C) {
c.Assert(apply("<html><head>foo"), qt.Equals, "<html><head>"+expectBase+"foo")
})
c.Run("Head upper", func(c *qt.C) {
c.Assert(apply("<html><HEAD>foo"), qt.Equals, "<html><HEAD>"+expectBase+"foo")
})
c.Run("Body lower", func(c *qt.C) {
c.Assert(apply("foo</body>"), qt.Equals, "foo"+expectBase+"</body>")
})
c.Run("Body upper", func(c *qt.C) {
c.Assert(apply("foo</BODY>"), qt.Equals, "foo"+expectBase+"</BODY>")
})
c.Run("No match", func(c *qt.C) {
c.Assert(apply("<h1>No match</h1>"), qt.Equals, "<h1>No match</h1>")
})
}