func TestFontURLFail(t *testing.T) {
r, w, _ := os.Pipe()
old := os.Stdout
defer func() { os.Stdout = old }()
os.Stdout = w
in := bytes.NewBufferString(`@font-face {
src: font-url("arial.eot");
}`)
var out bytes.Buffer
ctx := libsass.Context{}
err := ctx.Compile(in, &out)
if err != nil {
t.Error(err)
}
outC := make(chan string)
go func(r *os.File) {
var buf bytes.Buffer
io.Copy(&buf, r)
outC <- buf.String()
}(r)
w.Close()
stdout := <-outC
if e := "font-url: font path not set\n"; e != stdout {
t.Errorf("got:\n%s\nwanted:\n%s\n", stdout, e)
}
}
// ImageURL handles calls to resolve a local image from the
// built css file path.
func ImageURL(ctx *libsass.Context, csv libsass.UnionSassValue) libsass.UnionSassValue {
var path []string
err := libsass.Unmarshal(csv, &path)
// This should create and throw a sass error
if err != nil {
return libsass.Error(err)
}
url := filepath.Join(ctx.RelativeImage(), path[0])
res, err := libsass.Marshal(fmt.Sprintf("url('%s')", url))
if err != nil {
return libsass.Error(err)
}
return res
}
// HTTPHandler starts a CORS enabled web server that takes as input
// Sass and outputs CSS.
func HTTPHandler(ctx *libsass.Context) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
var (
pout bytes.Buffer
buf bytes.Buffer
)
start := time.Now()
// Set headers
if origin := r.Header.Get("Origin"); origin != "" {
w.Header().Set("Access-Control-Allow-Origin", origin)
}
w.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token")
w.Header().Set("Access-Control-Allow-Credentials", "true")
_, err := StartParser(ctx, r.Body, &pout, NewPartialMap())
if err != nil {
enc := json.NewEncoder(w)
enc.Encode(Response{
Start: start,
Elapsed: strconv.FormatFloat(float64(
time.Since(start).Nanoseconds())/float64(time.Millisecond),
'f', 3, 32) + "ms",
Contents: "",
Error: fmt.Sprintf("%s", err),
})
return
}
err = ctx.Compile(&pout, &buf)
defer func() {
enc := json.NewEncoder(w)
errString := ""
if err != nil {
errString = err.Error()
}
enc.Encode(Response{
Start: start,
Elapsed: strconv.FormatFloat(float64(
time.Since(start).Nanoseconds())/(1000*1000),
'f', 3, 32) + "ms",
Contents: buf.String(),
Error: errString,
})
}()
}
}
// LoadAndBuild kicks off parser and compiling
// TODO: make this function testable
func LoadAndBuild(sassFile string, gba *BuildArgs, partialMap *SafePartialMap) error {
if gba == nil {
return fmt.Errorf("build args are nil")
}
// If no imagedir specified, assume relative to the input file
if gba.Dir == "" {
gba.Dir = filepath.Dir(sassFile)
}
var (
out io.WriteCloser
fout string
)
if gba.BuildDir != "" {
// Build output file based off build directory and input filename
rel, _ := filepath.Rel(gba.Includes, filepath.Dir(sassFile))
filename := updateFileOutputType(filepath.Base(sassFile))
fout = filepath.Join(gba.BuildDir, rel, filename)
} else {
out = os.Stdout
}
ctx := libsass.Context{
Sprites: gba.Sprites,
Imgs: gba.Imgs,
OutputStyle: gba.Style,
ImageDir: gba.Dir,
FontDir: gba.Font,
// Assumption that output is a file
BuildDir: filepath.Dir(fout),
GenImgDir: gba.Gen,
MainFile: sassFile,
Comments: gba.Comments,
IncludePaths: []string{filepath.Dir(sassFile)},
}
ctx.Imports.Init()
if gba.Includes != "" {
ctx.IncludePaths = append(ctx.IncludePaths,
strings.Split(gba.Includes, ",")...)
}
fRead, err := os.Open(sassFile)
if err != nil {
return err
}
defer fRead.Close()
if fout != "" {
dir := filepath.Dir(fout)
err := os.MkdirAll(dir, 0755)
if err != nil {
return fmt.Errorf("Failed to create directory: %s", dir)
}
out, err = os.Create(fout)
defer out.Close()
if err != nil {
return fmt.Errorf("Failed to create file: %s", sassFile)
}
// log.Println("Created:", fout)
}
err = ctx.FileCompile(sassFile, out)
if err != nil {
log.Println(sassFile)
return err
}
for _, inc := range ctx.ResolvedImports {
partialMap.AddRelation(ctx.MainFile, inc)
}
fmt.Printf("Rebuilt: %s\n", sassFile)
return nil
}