func ReadAsset(assetUrl string) (result string, err error) {
filePath := ResolvePath(assetUrl)
fileExt := path.Ext(filePath)
switch fileExt {
case ".js", ".css":
if Config.BundleAssets {
data := bytes.NewBuffer([]byte(""))
contents := []string{}
_, err = ReadAssetsFunc(filePath, assetUrl, func(filePath string, content string) {
contents = append(contents, content)
})
if err != nil {
return
}
data.Write([]byte(strings.Join(contents, "\n")))
result = string(data.Bytes())
} else {
result, err = ReadRawAsset(filePath, assetUrl)
}
case ".sass", ".scss", ".coffee":
interpreter.Config.SASS.LineNumbers = Config.SASS.LineNumbers
interpreter.Config.SASS.DebugInfo = Config.SASS.DebugInfo
result, err = interpreter.Compile(filePath)
default:
err = errors.New("Unsupported Asset: " + assetUrl)
}
return
}
func compileSassAndCoffee(filePath string) (string, error) {
interpreter.Config.AssetsPath = Config.AssetsPath
interpreter.Config.SASS.LineNumbers = Config.SASS.LineNumbers
interpreter.Config.SASS.DebugInfo = Config.SASS.DebugInfo
interpreter.Config.Verbose = Config.Verbose
result, err := interpreter.Compile(filePath)
return result, err
}
func Diagnose() bool {
var err error
fmt.Println("== Diagnosing\n")
allGood := true
_, filename, _, _ := runtime.Caller(0)
assetsPath := path.Dir(filename) + "/assets"
_, err = bash("node-sass --version")
if err != nil {
fmt.Println("-- SASS is disabled because the required npm is not found.")
fmt.Println(" (install it if you wish to use SASS: npm install -g [email protected])\n")
allGood = false
} else {
_, err = interpreter.Compile(assetsPath + "/stylesheets/font.sass")
if err != nil {
fmt.Println("-- SASS is disabled because error raised while compiling. Error:")
fmt.Printf("%s\n", err.Error())
allGood = false
}
}
_, err = bash("coffee -v")
if err != nil {
fmt.Println("-- CoffeeScript is disabled because the required npm is not found.")
fmt.Println(" (install it if you wish to use CoffeeScript : npm install -g [email protected])")
allGood = false
} else {
_, err = interpreter.Compile(assetsPath + "/javascripts/app.coffee")
if err != nil {
fmt.Println("-- CoffeeScript is disabled because error raised while compiling. Error: ")
fmt.Printf("%s\n", err.Error())
allGood = false
}
}
if allGood {
fmt.Println("-- Great, your environment seems perfect for Train.")
} else {
fmt.Println("-- (Please create an issue at github.com/shaoshing/train/issues if you need help)")
}
return allGood
}
func diagnose() bool {
var err error
fmt.Println("== Diagnosing\n")
var rubyVersion string
rubyVersion, err = bash(`ruby -e "puts RUBY_VERSION"`)
if err != nil {
fmt.Println("-- SASS and CoffeeScript are disabled because ruby is not installed.")
fmt.Println(" (visit https://github.com/sstephenson/rbenv/#installation for installation instructions)")
return false
}
if !strings.Contains(rubyVersion, "1.9") {
fmt.Printf("-- Train requires Ruby version to be 1.9.x; you have %s", rubyVersion)
fmt.Println(" (Please install required Ruby version if you wish to use SASS or CoffeeScript)")
return false
}
allGood := true
_, filename, _, _ := runtime.Caller(1)
assetsPath := path.Dir(filename) + "/assets"
_, err = bash("gem which sass")
if err != nil {
fmt.Println("-- SASS is disabled because the required gem is not found.")
fmt.Println(" (install it if you wish to use SASS: gem install sass)\n")
allGood = false
} else {
_, err = interpreter.Compile(assetsPath + "/stylesheets/font.sass")
if err != nil {
fmt.Println("-- SASS is disabled because error raised while compiling. Error:")
fmt.Printf("%s\n", err.Error())
fmt.Println("(this might related to your Ruby Environment; try re-installing Ruby)\n")
allGood = false
}
}
_, err = bash("gem which coffee-script")
if err != nil {
fmt.Println("-- CoffeeScript is disabled because the required gem is not found.")
fmt.Println(" (install it if you wish to use CoffeeScript : gem install coffee-script)")
allGood = false
} else {
_, err = interpreter.Compile(assetsPath + "/javascripts/app.coffee")
if err != nil {
fmt.Println("-- CoffeeScript is disabled because error raised while compiling. Error: ")
fmt.Printf("%s\n", err.Error())
fmt.Println("(this might related to your Ruby Environment; try re-installing Ruby)\n")
allGood = false
}
}
if allGood {
fmt.Println("-- Great, your environment seems perfect for Train.")
} else {
fmt.Println("-- (Please create an issue at github.com/shaoshing/train/issues if you need help)")
}
return allGood
}