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trying to move to toml config #118

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51 changes: 40 additions & 11 deletions cmd/dnsmonster/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,8 @@ import (
"time"

"github.com/mosajjal/dnsmonster/internal/capture"
"github.com/mosajjal/dnsmonster/internal/config"
"github.com/mosajjal/dnsmonster/internal/output"
"github.com/mosajjal/dnsmonster/internal/util"
"github.com/pkg/profile"
"github.com/rcrowley/go-metrics"
Expand All @@ -58,22 +60,49 @@ func handleInterrupt(ctx context.Context) {
}()
}

func main() {

for i := range os.Args {

var re = regexp.MustCompile(`(?m)--(\w+)`)
os.Args[i] = (re.ReplaceAllStringFunc(os.Args[i], func(m string) string {
func normalizeCmdArgs(args []string) {
re := regexp.MustCompile(`(?m)--(\w+)`)
for i := range args {
args[i] = re.ReplaceAllStringFunc(args[i], func(m string) string {
return strings.ToLower(m)
}))

})
}
}

func main() {
normalizeCmdArgs(os.Args)

var ctx context.Context
ctx, util.GlobalCancel = context.WithCancel(context.Background())
g, _ := errgroup.WithContext(ctx)
g, gCtx := errgroup.WithContext(ctx)

// process and handle flags
util.ProcessFlags(ctx)
cfg, err := config.LoadConfig()
if err != nil {
log.Fatalf("Failed to load config: %v", err)
}

cfgJson, err := json.MarshalIndent(cfg, "", " ")
if err != nil {
log.Fatalf("Failed to marshal config: %v", err)
}
log.Infof("Loaded config:\n%s", string(cfgJson))

// Integrate cfg into the rest of the application: register outputs from config
// Elastic output
if cfg.Outputs.Elastic.OutputType > 0 {
elasticOutput := output.NewElasticConfig().
WithOutputType(uint(cfg.Outputs.Elastic.OutputType)).
WithAddress(cfg.Outputs.Elastic.Address).
WithOutputIndex(cfg.Outputs.Elastic.OutputIndex).
WithBatchSize(cfg.Outputs.Elastic.BatchSize).
WithBatchDelay(cfg.Outputs.Elastic.BatchDelay).
WithChannelSize(int(util.GeneralFlags.ResultChannelSize))
if err != nil {
log.Fatalf("Failed to configure elastic output: %v", err)
}
util.GlobalDispatchList = append(util.GlobalDispatchList, elasticOutput)
}

// debug and profile options
runtime.GOMAXPROCS(util.GeneralFlags.Gomaxprocs)
Expand All @@ -89,7 +118,7 @@ func main() {
handleInterrupt(ctx)

// set up capture
g.Go(func() error { capture.GlobalCaptureConfig.CheckFlagsAndStart(ctx); return nil })
capture.GlobalCaptureConfig.CheckFlagsAndStart(gCtx)
// Set up output dispatch
var c chan util.DNSResult
for {
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