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//go:build generate
// +build generate
package main
import (
"bytes"
"context"
"fmt"
"go/format"
"net/netip"
"os"
"time"
_ "unsafe"
"github.com/r2northstar/atlas/pkg/cloudflare"
)
//go:linkname iplist github.com/r2northstar/atlas/pkg/cloudflare.iplist
var iplist []netip.Prefix
func main() {
if err := cloudflare.UpdateIPs(context.Background()); err != nil {
fmt.Fprintf(os.Stderr, "error: fetch ip list: %v\n", err)
os.Exit(1)
}
var b bytes.Buffer
fmt.Fprintf(&b, "// Code generated by iplist_generate on %s; DO NOT EDIT.\n", time.Now().UTC())
fmt.Fprintf(&b, "\n\n")
fmt.Fprintf(&b, "package cloudflare\n")
fmt.Fprintf(&b, "\n\n")
fmt.Fprintf(&b, "import %#v\n", "net/netip")
fmt.Fprintf(&b, "\n\n")
fmt.Fprintf(&b, "//go:generate go run iplist_generate.go\n")
fmt.Fprintf(&b, "\n\n")
fmt.Fprintf(&b, "func init() {\n")
fmt.Fprintf(&b, "iplist = append(iplist,\n")
for _, p := range iplist {
fmt.Fprintf(&b, "netip.MustParsePrefix(%#v),\n", p.String())
}
fmt.Fprintf(&b, ")\n")
fmt.Fprintf(&b, "}\n")
if src, err := format.Source(b.Bytes()); err != nil {
fmt.Fprintf(os.Stderr, "error: format generated code: %v\n", err)
os.Exit(1)
} else if err = os.WriteFile("iplist_generated.go", src, 0666); err != nil {
fmt.Fprintf(os.Stderr, "error: write generated code: %v\n", err)
os.Exit(1)
}
}
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