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package main
import (
"flag"
"fmt"
"github.com/golang/protobuf/proto"
"github.com/ry/v8worker2"
"net/url"
"os"
"path"
"sync"
)
var flagReload = flag.Bool("reload", false, "Reload cached remote source code.")
var flagV8Options = flag.Bool("v8-options", false, "Print V8 command line options.")
var flagDebug = flag.Bool("debug", false, "Enable debug output.")
var DenoDir string
var CompileDir string
var SrcDir string
var wg sync.WaitGroup
var resChan chan *Msg
func ResolveModule(moduleSpecifier string, containingFile string) (
moduleName string, filename string, err error) {
moduleUrl, err := url.Parse(moduleSpecifier)
if err != nil {
return
}
baseUrl, err := url.Parse(containingFile)
if err != nil {
return
}
resolved := baseUrl.ResolveReference(moduleUrl)
moduleName = resolved.String()
if moduleUrl.IsAbs() {
filename = path.Join(SrcDir, resolved.Host, resolved.Path)
} else {
filename = resolved.Path
}
return
}
func main() {
flag.Parse()
args := flag.Args()
if *flagV8Options {
args = append(args, "--help")
fmt.Println(args)
}
args = v8worker2.SetFlags(args)
createDirs()
worker := v8worker2.New(recv)
loadAsset(worker, "dist/main.js")
cwd, err := os.Getwd()
check(err)
resChan = make(chan *Msg)
doneChan := make(chan bool)
out, err := proto.Marshal(&Msg{
Payload: &Msg_Start{
Start: &StartMsg{
Cwd: cwd,
Argv: args,
DebugFlag: *flagDebug,
},
},
})
check(err)
err = worker.SendBytes(out)
if err != nil {
os.Stderr.WriteString(err.Error())
os.Exit(1)
}
// In a goroutine, we wait on for all goroutines to complete (for example
// timers). We use this to signal to the main thread to exit.
go func() {
wg.Wait()
doneChan <- true
}()
for {
select {
case msg := <-resChan:
out, err := proto.Marshal(msg)
err = worker.SendBytes(out)
check(err)
case <-doneChan:
// All goroutines have completed. Now we can exit main().
return
}
}
}
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