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chore: add a help flag #161

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Merged
merged 1 commit into from
Aug 15, 2025
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chore: add a help flag #161

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21 changes: 20 additions & 1 deletion internal/config/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,9 @@ package config

import (
"context"
"fmt"
"log"
"os"
"strings"
"time"

Expand Down Expand Up @@ -78,7 +80,24 @@ func (cfg *ConfigData) ParseFlags() {
// OTLP settings
flag.StringVar(&cfg.OTLPEndpoint, "otlp-endpoint", "", "OTLP endpoint for OpenTelemetry traces (e.g. localhost:4317)")

flag.Parse()
// Custom help handling.
var showHelp bool
flag.BoolVarP(&showHelp, "help", "h", false, "Show help message")

// Parse flags and handle errors properly
err := flag.CommandLine.Parse(os.Args[1:])
if err != nil {
fmt.Printf("\nUsage of %s:\n", os.Args[0])
flag.PrintDefaults()
os.Exit(1)
}

// Handle help manually with proper exit code
if showHelp {
fmt.Printf("Usage of %s:\n", os.Args[0])
flag.PrintDefaults()
os.Exit(0)
}

// Update security config
cfg.SecurityConfig.AccessLevel = cfg.AccessLevel
Expand Down
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