main.go
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package main
import (
"context"
"log"
"net/http"
"os"
"os/exec"
"os/signal"
"path/filepath"
"syscall"
"time"
"j3s.sh/gore/internal/assets"
)
func main() {
var services []*service
s1 := newService("/home/j3s/code/gore/builddir/git.j3s.sh/vore@v0.0.0-20240814184024-9d6fb2a0444f/vore")
services = append(services, s1)
if err := SuperviseServices(services); err != nil {
log.Fatal(err)
}
// this is for ensuring services terminate when ^C kills gore
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
defer stop()
go func() {
<-ctx.Done()
log.Println("Received shutdown signal…")
// arbitrarily select 90 seconds for service shutdown
// TODO: make this configurable?
killSupervisedServices(90 * time.Second)
os.Exit(0)
}()
// routes
http.HandleFunc("GET /", indexHandler)
http.HandleFunc("GET /status", statusHandler)
http.HandleFunc("GET /log", logHandler)
http.Handle("GET /assets/", http.StripPrefix("/assets/", http.FileServer(http.FS(assets.Assets))))
http.HandleFunc("POST /add", addHandler)
log.Println("listening on http://localhost:6043...")
log.Fatal(http.ListenAndServe(":6043", nil))
}
func SuperviseServices(services []*service) error {
unwrapped := make([]*service, len(services))
for idx, svc := range services {
unwrapped[idx] = svc
}
superviseServices(unwrapped)
return nil
}
func newService(path string) *service {
s := &service{
cmd: exec.Command(path),
stopped: false,
}
s.state = NewProcessState()
tag := filepath.Base(s.Cmd().Path)
s.Stdout = newLogWriter(tag)
s.Stderr = newLogWriter(tag)
return s
}