lionsoul2014/ip2region · error

failed to get executale: %w

Error message

failed to get executale: %w

What it means

Go CLI helper: os.Executable failed, so the tool cannot locate its own binary path to derive the default ../data/<file> xdb location. Rare; typically happens when /proc is unavailable or the process was executed in an unusual way.

Source

Thrown at binding/golang/main.go:28

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"path/filepath"
	"strings"
	"time"

	"github.com/lionsoul2014/ip2region/binding/golang/service"
	"github.com/lionsoul2014/ip2region/binding/golang/xdb"
	"github.com/mitchellh/go-homedir"
)

func getXdbPath(fileName string) (string, error) {
	binPath, err := os.Executable()
	if err != nil {
		return "", fmt.Errorf("failed to get executale: %w", err)
	}

	xdbPath := filepath.Join(filepath.Dir(filepath.Dir(filepath.Dir(binPath))), "/data/", fileName)
	_, err = os.Stat(xdbPath)
	if err != nil {
		return "", nil
	}

	// fmt.Printf("xdbPath=%s\n", xdbPath)
	return xdbPath, nil
}

func createService(v4XdbPath string, v4CachePolicy string, v6XdbPath string, v6CachePolicy string) (*service.Ip2Region, error) {
	// try to create v4 config
	v4CPolicy, err := service.CachePolicyFromName(v4CachePolicy)
	if err != nil {
		return nil, fmt.Errorf("parse v4 cache policy: %w", err)
	}

View on GitHub (pinned to c1a1fc7d59)

Solutions

1. Pass an explicit xdb path instead of relying on the executable-relative default
2. Run in an environment where /proc/self/exe is accessible
3. Wrap with %w so callers can inspect the underlying os error

When it happens

Trigger: Thrown at binding/golang/main.go:28 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of lionsoul2014/ip2region@c1a1fc7d59 (2026-09-02). Data as JSON: /api/errors/b9a2b7e9ad0b6d84. Report an issue: GitHub.