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package main
import (
"flag"
"fmt"
"io/ioutil"
"os"
"github.com/aymerick/douceur/inliner"
"github.com/aymerick/douceur/parser"
)
const (
// Version is package version
Version = "0.2.0"
)
var (
flagVersion bool
)
func init() {
flag.BoolVar(&flagVersion, "version", false, "Display version")
}
func main() {
flag.Parse()
if flagVersion {
fmt.Println(Version)
os.Exit(0)
}
args := flag.Args()
if len(args) == 0 {
fmt.Println("No command supplied")
os.Exit(1)
}
switch args[0] {
case "parse":
if len(args) < 2 {
fmt.Println("Missing file path")
os.Exit(1)
}
parseCSS(args[1])
case "inline":
if len(args) < 2 {
fmt.Println("Missing file path")
os.Exit(1)
}
inlineCSS(args[1])
default:
fmt.Println("Unexpected command: ", args[0])
os.Exit(1)
}
}
// parse and display CSS file
func parseCSS(filePath string) {
input := readFile(filePath)
stylesheet, err := parser.Parse(string(input))
if err != nil {
fmt.Println("Parsing error: ", err)
os.Exit(1)
}
fmt.Println(stylesheet.String())
}
// inlines CSS into HTML and display result
func inlineCSS(filePath string) {
input := readFile(filePath)
output, err := inliner.Inline(string(input))
if err != nil {
fmt.Println("Inlining error: ", err)
os.Exit(1)
}
fmt.Println(output)
}
func readFile(filePath string) []byte {
file, err := ioutil.ReadFile(filePath)
if err != nil {
fmt.Println("Failed to open file: ", filePath, err)
os.Exit(1)
}
return file
}
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