func (e extractContent) prepareHTMLOut(a *Article) error {
if a.TopNode == nil {
return nil
}
m := minify.New()
m.AddFunc("text/html", minhtml.Minify)
var b bytes.Buffer
html, _ := a.TopNode.Html()
m.Minify("text/html", &b, strings.NewReader(html))
doc, _ := goquery.NewDocumentFromReader(&b)
a.TopNode = doc.FindMatcher(bodyTag)
// Quick-and-dirty node-to-text replacement
a.TopNode.FindMatcher(replaceWithContentsTags).Each(
func(i int, s *goquery.Selection) {
s.Contents().Unwrap()
})
a.addInlineArticleImageHTML(a.Meta.Title)
return nil
}
func (*minify) Process(ctx goldsmith.Context, f goldsmith.File) error {
var (
buff bytes.Buffer
err error
)
switch m := min.New(); filepath.Ext(f.Path()) {
case ".css":
err = css.Minify(m, &buff, f, nil)
case ".html", ".htm":
err = html.Minify(m, &buff, f, nil)
case ".js":
err = js.Minify(m, &buff, f, nil)
case ".json":
err = json.Minify(m, &buff, f, nil)
case ".svg":
err = svg.Minify(m, &buff, f, nil)
case ".xml":
err = xml.Minify(m, &buff, f, nil)
}
if err != nil {
return err
}
nf := goldsmith.NewFileFromData(f.Path(), buff.Bytes())
nf.CopyValues(f)
ctx.DispatchFile(nf)
return nil
}
func TestHTMLURL(t *testing.T) {
var htmlTests = []struct {
url string
html string
expected string
}{
{`http://example.com/`, `<a href=http://example.com/>link</a>`, `<a href=//example.com/>link</a>`},
{`https://example.com/`, `<a href=http://example.com/>link</a>`, `<a href=http://example.com/>link</a>`},
{`http://example.com/`, `<a href=https://example.com/>link</a>`, `<a href=https://example.com/>link</a>`},
{`https://example.com/`, `<a href=https://example.com/>link</a>`, `<a href=//example.com/>link</a>`},
{`http://example.com/`, `<a href=" http://example.com ">x</a>`, `<a href=//example.com>x</a>`},
{`http://example.com/`, `<link rel="stylesheet" type="text/css" href="http://example.com">`, `<link rel=stylesheet href=//example.com>`},
{`http://example.com/`, `<!doctype html> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head profile="http://dublincore.org/documents/dcq-html/"> <!-- Barlesque 2.75.0 --> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />`,
`<!doctype html><html xmlns=//www.w3.org/1999/xhtml xml:lang=en><head profile=//dublincore.org/documents/dcq-html/><meta charset=utf-8>`},
{`http://example.com/`, `<svg xmlns="http://www.w3.org/2000/svg"></svg>`, `<svg xmlns=//www.w3.org/2000/svg></svg>`},
{`https://example.com/`, `<svg xmlns="http://www.w3.org/2000/svg"></svg>`, `<svg xmlns=http://www.w3.org/2000/svg></svg>`},
{`http://example.com/`, `<svg xmlns="https://www.w3.org/2000/svg"></svg>`, `<svg xmlns=https://www.w3.org/2000/svg></svg>`},
{`https://example.com/`, `<svg xmlns="https://www.w3.org/2000/svg"></svg>`, `<svg xmlns=//www.w3.org/2000/svg></svg>`},
}
m := minify.New()
m.AddFunc("text/html", Minify)
for _, tt := range htmlTests {
r := bytes.NewBufferString(tt.html)
w := &bytes.Buffer{}
m.URL, _ = url.Parse(tt.url)
assert.Nil(t, Minify(m, w, r, nil), "Minify must not return error in "+tt.html)
assert.Equal(t, tt.expected, w.String(), "Minify must give expected result in "+tt.html)
}
}
func TestWriterErrors(t *testing.T) {
errorTests := []struct {
css string
n []int
}{
{`@import 'file'`, []int{0, 2}},
{`@media all{}`, []int{0, 2, 3, 4}},
{`a[id^="L"]{margin:2in!important;color:red}`, []int{0, 4, 6, 7, 8, 9, 10, 11}},
{`a{color:rgb(255,0,0)}`, []int{4}},
{`a{color:rgb(255,255,255)}`, []int{4}},
{`a{color:hsl(0,100%,50%)}`, []int{4}},
{`a{color:hsl(360,100%,100%)}`, []int{4}},
{`a{color:f(arg)}`, []int{4}},
{`<!--`, []int{0}},
{`/*!comment*/`, []int{0, 1, 2}},
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
r := bytes.NewBufferString(tt.css)
w := test.NewErrorWriter(n)
test.Error(t, Minify(m, w, r, nil), test.ErrPlain, "return error at write", n, "in", tt.css)
}
}
}
func TestHTMLKeepWhitespace(t *testing.T) {
htmlTests := []struct {
html string
expected string
}{
{`cats and dogs `, `cats and dogs`},
{` <div> <i> test </i> <b> test </b> </div> `, `<div> <i> test </i> <b> test </b> </div>`},
{`<strong>x </strong>y`, `<strong>x </strong>y`},
{`<strong>x </strong> y`, `<strong>x </strong> y`},
{"<strong>x </strong>\ny", "<strong>x </strong>\ny"},
{`<p>x </p>y`, `<p>x </p>y`},
{`x <p>y</p>`, `x <p>y`},
{` <!doctype html> <!--comment--> <html> <body><p></p></body></html> `, `<!doctype html><p>`}, // spaces before html and at the start of html are dropped
{`<p>x<br> y`, `<p>x<br> y`},
{`<p>x </b> <b> y`, `<p>x </b> <b> y`},
{`a <code>code</code> b`, `a <code>code</code> b`},
{`a <code></code> b`, `a <code></code> b`},
{`a <script>script</script> b`, `a <script>script</script> b`},
{"text\n<!--comment-->\ntext", "text\ntext"},
{"text\n<!--comment-->text<!--comment--> text", "text\ntext text"},
{"abc\n</body>\ndef", "abc\ndef"},
{"<x>\n<!--y-->\n</x>", "<x>\n</x>"},
{"<style>lala{color:red}</style>", "<style>lala{color:red}</style>"},
}
m := minify.New()
htmlMinifier := &Minifier{KeepWhitespace: true}
for _, tt := range htmlTests {
r := bytes.NewBufferString(tt.html)
w := &bytes.Buffer{}
test.Minify(t, tt.html, htmlMinifier.Minify(m, w, r, nil), w.String(), tt.expected)
}
}
func TestWriterErrors(t *testing.T) {
errorTests := []struct {
svg string
n []int
}{
{`<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "foo.dtd" [ <!ENTITY x "bar"> ]>`, []int{0}},
{`abc`, []int{0}},
{`<style>abc</style>`, []int{2}},
{`<![CDATA[ <<<< ]]>`, []int{0}},
{`<![CDATA[ <<<<< ]]>`, []int{0}},
{`<path d="x"/>`, []int{0, 1, 2, 3, 4, 5}},
{`<path></path>`, []int{1}},
{`<svg>x</svg>`, []int{1, 3}},
{`<svg>x</svg >`, []int{3}},
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
r := bytes.NewBufferString(tt.svg)
w := test.NewErrorWriter(n)
test.Error(t, Minify(m, w, r, nil), test.ErrPlain, "return error at write", n, "in", tt.svg)
}
}
}
func createAppMinJsFile(appScripts []string, dir string) {
appMinJsWrtr, err := os.Create(filepath.Join(dir, "app.min.js"))
if err != nil {
log.Fatal(err)
}
defer closeFile(appMinJsWrtr, true)
var buffer bytes.Buffer
for _, script := range appScripts {
file, err := os.Open(filepath.Join(dir, script))
if err != nil {
log.Fatal(err)
}
defer closeFile(file, false)
_, err = io.Copy(&buffer, file)
if err != nil {
log.Fatalf("Error copying script file '%v' to buffer: %v", script, err)
}
}
mimetype := "text/javascript"
minifier := minify.New()
minifier.AddFunc(mimetype, js.Minify)
minified, err := minify.Bytes(minifier, mimetype, buffer.Bytes())
if err != nil {
log.Fatalf("Error during minification: %v", err)
}
_, err = io.Copy(appMinJsWrtr, bytes.NewReader(minified))
if err != nil {
log.Fatalf("Error copying to file app.min.js: %v", err)
}
}
func TestJS(t *testing.T) {
jsTests := []struct {
js string
expected string
}{
{"/*comment*/", ""},
{"// comment\na", "a"},
{"/*! bang comment */", "/*!bang comment*/"},
{"function x(){}", "function x(){}"},
{"function x(a, b){}", "function x(a,b){}"},
{"a b", "a b"},
{"a\n\nb", "a\nb"},
{"a// comment\nb", "a\nb"},
{"''\na", "''\na"},
{"''\n''", "''''"},
{"]\n0", "]\n0"},
{"a\n{", "a\n{"},
{";\na", ";a"},
{",\na", ",a"},
{"}\na", "}\na"},
{"+\na", "+\na"},
{"+\n(", "+\n("},
{"+\n\"\"", "+\"\""},
{"a + ++b", "a+ ++b"}, // JSMin caution
{"var a=/\\s?auto?\\s?/i\nvar", "var a=/\\s?auto?\\s?/i\nvar"}, // #14
{"`\n", "`"}, // go fuzz
}
m := minify.New()
for _, tt := range jsTests {
r := bytes.NewBufferString(tt.js)
w := &bytes.Buffer{}
test.Minify(t, tt.js, Minify(m, w, r, nil), w.String(), tt.expected)
}
}
func assertSVG(t *testing.T, input, expected string) {
m := minify.New()
m.AddFunc("image/svg+xml", Minify)
b := &bytes.Buffer{}
assert.Nil(t, m.Minify("image/svg+xml", b, bytes.NewBufferString(input)), "Minify must not return error in "+input)
assert.Equal(t, expected, b.String(), "Minify must give expected result in "+input)
}
func Minify() gonzo.Stage {
return func(ctx context.Context, in <-chan gonzo.File, out chan<- gonzo.File) error {
for {
select {
case file, ok := <-in:
if !ok {
return nil
}
buff := new(bytes.Buffer)
name := strings.TrimSuffix(file.FileInfo().Name(), ".css") + ".min.css"
ctx.Infof("Compiling %s to %s", file.FileInfo().Name(), name)
m := minify.New()
m.AddFunc("text/css", css.Minify)
err := m.Minify("text/css", buff, file)
if err != nil {
return err
}
file = gonzo.NewFile(ioutil.NopCloser(buff), file.FileInfo())
file.FileInfo().SetSize(int64(buff.Len()))
file.FileInfo().SetName(name)
out <- file
case <-ctx.Done():
return ctx.Err()
}
}
}
}
func TestJS(t *testing.T) {
var jsTests = []struct {
js string
expected string
}{
{"/*comment*/", ""},
{"// comment\na", "a"},
{"function x(){}", "function x(){}"},
{"function x(a, b){}", "function x(a,b){}"},
{"a b", "a b"},
{"a\n\nb", "a\nb"},
{"a// comment\nb", "a\nb"},
{"''\na", "''\na"},
{"''\n''", "''''"},
{"]\n0", "]\n0"},
{"a\n{", "a\n{"},
{";\na", ";a"},
{",\na", ",a"},
{"}\na", "}\na"},
{"+\na", "+\na"},
{"+\n(", "+\n("},
{"+\n\"\"", "+\"\""},
{"a + ++b", "a+ ++b"}, // JSMin caution
{"var a=/\\s?auto?\\s?/i\nvar", "var a=/\\s?auto?\\s?/i\nvar"}, // #14
}
m := minify.New()
for _, tt := range jsTests {
b := &bytes.Buffer{}
assert.Nil(t, Minify(m, b, bytes.NewBufferString(tt.js), nil), "Minify must not return error in "+tt.js)
assert.Equal(t, tt.expected, b.String(), "Minify must give expected result in "+tt.js)
}
}
func Min(c *slurp.C, mediatype string) slurp.Stage {
return func(in <-chan slurp.File, out chan<- slurp.File) {
supported := make(map[string]uint8)
supported["text/css"] = 1
supported["text/html"] = 1
supported["text/javascript"] = 1
var wg sync.WaitGroup
defer wg.Wait()
_, ok := supported[mediatype]
if ok {
for file := range in {
m := minify.New()
m.AddFunc("text/css", css.Minify)
m.AddFunc("text/html", html.Minify)
m.AddFunc("text/javascript", js.Minify)
wg.Add(1)
go func(file slurp.File) {
defer wg.Done()
minified := new(bytes.Buffer)
if err := m.Minify(mediatype, minified, file.Reader); err != nil {
log.Fatal("js.Minify:", err)
}
file.Reader = minified
file.FileInfo.SetSize(int64(minified.Len()))
out <- file
}(file)
}
}
}
}
func TestWriterErrors(t *testing.T) {
var errorTests = []struct {
css string
n []int
}{
{`@import 'file'`, []int{0, 2}},
{`@media all{}`, []int{0, 2, 3, 4}},
{`a[id^="L"]{margin:2in!important;color:red}`, []int{0, 4, 6, 7, 8, 9, 10, 11}},
{`a{color:rgb(255,0,0)}`, []int{4}},
{`a{color:rgb(255,255,255)}`, []int{4}},
{`a{color:hsl(0,100%,50%)}`, []int{4}},
{`a{color:hsl(360,100%,100%)}`, []int{4}},
{`a{color:f(arg)}`, []int{4}},
{`<!--`, []int{0}},
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
r := bytes.NewBufferString(tt.css)
w := test.NewErrorWriter(n)
assert.Equal(t, test.ErrPlain, Minify(m, w, r, nil), "Minify must return error in "+tt.css+" at write "+strconv.FormatInt(int64(n), 10))
}
}
}
func TestXML(t *testing.T) {
var xmlTests = []struct {
xml string
expected string
}{
{"<!-- comment -->", ""},
{"<A>x</A>", "<A>x</A>"},
{"<a><b>x</b></a>", "<a><b>x</b></a>"},
{"<a><b>x\ny</b></a>", "<a><b>x\ny</b></a>"},
{"<a> <![CDATA[ a ]]> </a>", "<a>a</a>"},
{"<a >a</a >", "<a>a</a>"},
{"<?xml version=\"1.0\" ?>", "<?xml version=\"1.0\"?>"},
{"<x></x>", "<x/>"},
{"<x> </x>", "<x/>"},
{"<x a=\"b\"></x>", "<x a=\"b\"/>"},
{"<x a=\"\"></x>", "<x a=\"\"/>"},
{"<x a=a></x>", "<x a=a/>"},
{"<x a=\" a \n\r\t b \"/>", "<x a=\" a b \"/>"},
{"<x a=\"'b"\"></x>", "<x a=\"'b"\"/>"},
{"<x a=\"""'\"></x>", "<x a='\"\"''/>"},
{"<!DOCTYPE foo SYSTEM \"Foo.dtd\">", "<!DOCTYPE foo SYSTEM \"Foo.dtd\">"},
{"text <!--comment--> text", "text text"},
}
m := minify.New()
for _, tt := range xmlTests {
b := &bytes.Buffer{}
assert.Nil(t, Minify(m, b, bytes.NewBufferString(tt.xml), nil), "Minify must not return error in "+tt.xml)
assert.Equal(t, tt.expected, b.String(), "Minify must give expected result in "+tt.xml)
}
}
func ExampleMinify() {
m := minify.New()
m.AddFunc("text/css", Minify)
if err := m.Minify("text/css", os.Stdout, os.Stdin); err != nil {
fmt.Println("minify.Minify:", err)
}
}
func ExampleMinify() {
m := minify.New()
m.AddFuncRegexp(regexp.MustCompile("[/+]xml$"), Minify)
if err := m.Minify("text/xml", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}
func init() {
minifier = minify.New()
minifier.AddFunc("text/css", css.Minify)
minifier.AddFunc("text/html", html.Minify)
minifier.AddFunc("text/javascript", js.Minify)
mediaType = regexp.MustCompile("text/[html|css|javascript]")
}
func Fuzz(data []byte) int {
r := bytes.NewBuffer(data)
err := xml.Minify(minify.New(), ioutil.Discard, r, nil)
if err != nil {
panic(err)
}
return 1
}
func ExampleMinify() {
m := minify.New()
m.AddFunc("text/css", Minify)
if err := m.Minify("text/css", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}
func ExampleMinify() {
m := minify.New()
m.AddFuncRegexp(regexp.MustCompile("[/+]json$"), Minify)
if err := m.Minify("application/json", os.Stdout, os.Stdin); err != nil {
fmt.Println("minify.Minify:", err)
}
}
func Fuzz(data []byte) int {
r := bytes.NewBuffer(data)
err := json.Minify(minify.New(), ioutil.Discard, r, nil)
if err != nil {
return 0
}
return 1
}
func TestCSSInlineMediatype(t *testing.T) {
css := `color:red`
m := minify.New()
r := bytes.NewBufferString(css)
w := &bytes.Buffer{}
assert.Nil(t, Minify(m, "text/css ; inline = 1", w, r), "Minify must not return error in "+css)
assert.Equal(t, css, w.String(), "Minify must give expected result in "+css)
}
// Helper function to minify code
func minifyScript(script string) string {
m := minify.New()
m.AddFunc("text/javascript", js.Minify)
miny, err := m.String("text/javascript", script)
if err != nil {
log.Fatal("minify.String:", err)
}
return miny
}
func ExampleMinify_writer() {
m := minify.New()
m.Add("text/html", &Minifier{})
w := m.Writer("text/html", os.Stdout)
w.Write([]byte("<html><body><h1>Example</h1></body></html>"))
w.Close()
// Output: <h1>Example</h1>
}
func Minify(input string, mime string) (result string) {
if minifier == nil {
log.Print("initializing minifier")
minifier = minify.New()
minifier.AddFunc("js", js.Minify)
}
result, err := minify.String(minifier, mime, input)
CheckErrorPanic(err)
return
}
func initMinifier() {
if m != nil {
return
}
m = minify.New()
m.AddFunc("text/css", css.Minify)
m.AddFunc("text/javascript", js.Minify)
}
func getMinifier() *minify.M {
if minifier == nil {
minifier = minify.New()
minifier.AddFunc("text/css", css.Minify)
minifier.AddFunc("application/javascript", js.Minify)
minifier.AddFunc("application/json", json.Minify)
minifier.AddFunc("image/svg+xml", svg.Minify)
}
return minifier
}
func TestWriterErrors(t *testing.T) {
var errorTests = []int{0, 1, 2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 18, 19}
m := minify.New()
for _, n := range errorTests {
// writes: 0 1 2 3 45678901 23 4 5 6 7 8 9
r := bytes.NewBufferString(`<!DOCTYPE foo><?xml?><a x=y z="val"><b/><c></c></a><![CDATA[data<<<<<]]>text`)
w := test.NewErrorWriter(n)
assert.Equal(t, test.ErrPlain, Minify(m, w, r, nil), "Minify must return error at write "+strconv.FormatInt(int64(n), 10))
}
}
func TestWriterErrors(t *testing.T) {
var errorTests = []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14}
m := minify.New()
for _, n := range errorTests {
// writes: 0 1 2 34 56 78 9 0 12 3 4
r := bytes.NewBufferString(`<!doctype>text<style attr=val>css</style><code>code</code><!--comment-->`)
w := test.NewErrorWriter(n)
assert.Equal(t, test.ErrPlain, Minify(m, w, r, nil), "Minify must return error at write "+strconv.FormatInt(int64(n), 10))
}
}
func ExampleMinify_options() {
m := minify.New()
m.Add("text/html", &Minifier{
KeepDefaultAttrVals: true,
KeepWhitespace: true,
})
if err := m.Minify("text/html", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}
