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main.go
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main.go
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package main
import (
"context"
"errors"
"fmt"
"net/url"
"os"
"os/signal"
"syscall"
"github.com/cmwaters/skychart/server"
)
const (
defaultUpdateFreq = "@daily"
)
func main() {
registryUrl, listenAddr, err := parseArgs()
if err != nil {
fmt.Print(err)
}
ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGTERM, syscall.SIGINT)
defer cancel()
err = server.Serve(ctx, registryUrl, listenAddr, defaultUpdateFreq)
if err != nil {
fmt.Print(err)
}
}
func parseArgs() (string, string, error) {
if len(os.Args) > 3 || len(os.Args) == 1 {
return "", "", errors.New("expected 1 or 2 arguments. \n\nUsage: skychart registry-url [listen-addr]")
}
registryUrl := os.Args[1]
_, err := url.Parse(registryUrl)
if err != nil {
return "", "", fmt.Errorf("unable to parse registry url: %w. \n\nUsage: skychart registry-url [listen-addr]", err)
}
if len(os.Args) == 2 {
return registryUrl, "", nil
}
return registryUrl, os.Args[2], nil
}