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package main
import (
"context"
"encoding/json"
"errors"
"io"
"log"
"os"
"os/exec"
"hakurei.app/hst"
"hakurei.app/internal"
"hakurei.app/internal/hlog"
)
var hakureiPath = internal.MustHakureiPath()
func mustRunApp(ctx context.Context, config *hst.Config, beforeFail func()) {
var (
cmd *exec.Cmd
st io.WriteCloser
)
if r, w, err := os.Pipe(); err != nil {
beforeFail()
log.Fatalf("cannot pipe: %v", err)
} else {
if hlog.Load() {
cmd = exec.CommandContext(ctx, hakureiPath, "-v", "app", "3")
} else {
cmd = exec.CommandContext(ctx, hakureiPath, "app", "3")
}
cmd.Stdin, cmd.Stdout, cmd.Stderr = os.Stdin, os.Stdout, os.Stderr
cmd.ExtraFiles = []*os.File{r}
st = w
}
go func() {
if err := json.NewEncoder(st).Encode(config); err != nil {
beforeFail()
log.Fatalf("cannot send configuration: %v", err)
}
}()
if err := cmd.Start(); err != nil {
beforeFail()
log.Fatalf("cannot start hakurei: %v", err)
}
if err := cmd.Wait(); err != nil {
var exitError *exec.ExitError
if errors.As(err, &exitError) {
beforeFail()
internal.Exit(exitError.ExitCode())
} else {
beforeFail()
log.Fatalf("cannot wait: %v", err)
}
}
}
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