latest
This commit is contained in:
parent
39eefcafee
commit
0dd9505fb3
385
fastmirror.go
385
fastmirror.go
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package fastmirror
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import (
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"bufio"
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_ "embed"
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"fmt"
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"github.com/schollz/progressbar/v3"
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"html/template"
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"io"
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"log"
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"net/http"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"time"
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)
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//go:embed sources_list_legacy.tmpl
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var legacyTemplate string
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//go:embed sources_list_modern.tmpl
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var modernTemplate string
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func CLIEntry() {
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log.Println("Starting Fastmirror CLI")
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if runtime.GOOS != "linux" {
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log.Fatal("This program is only for Linux")
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}
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if err := isUbuntu(); err != nil {
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log.Fatal(err)
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}
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sourcesFilePath, err := findSourcesFilePath()
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Found sources file: %s", sourcesFilePath)
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// Extract suites from the existing sources file
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suites, err := extractSuites(sourcesFilePath)
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Extracted suites: %v", suites)
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// Create backup of the sources file
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if err := createBackup(sourcesFilePath); err != nil {
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log.Fatal(err)
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}
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// Create sources.list.d directory if it doesn't exist
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if err := createSourcesListD(); err != nil {
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log.Fatal(err)
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}
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// Fetch and find the fastest mirror
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fastestMirrorURL, fastestTime, latencies, err := findFastestMirror()
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Fastest mirror: %s", fastestMirrorURL)
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// Display latency statistics
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displayLatencyStatistics(latencies, fastestMirrorURL, fastestTime)
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// Update sources file with the fastest mirror
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if err := updateSourcesFile(sourcesFilePath, fastestMirrorURL, suites); err != nil {
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log.Fatal(err)
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}
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log.Println("Fastmirror CLI finished successfully")
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}
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func getUbuntuCodename() (string, error) {
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cmd := exec.Command("lsb_release", "-cs")
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output, err := cmd.Output()
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if err != nil {
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return "", fmt.Errorf("failed to run lsb_release: %v", err)
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}
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return strings.TrimSpace(string(output)), nil
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}
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func getUbuntuVersion() (int, int, error) {
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cmd := exec.Command("lsb_release", "-rs")
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output, err := cmd.Output()
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if err != nil {
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return 0, 0, fmt.Errorf("failed to run lsb_release: %v", err)
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}
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version := strings.TrimSpace(string(output))
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parts := strings.Split(version, ".")
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if len(parts) != 2 {
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return 0, 0, fmt.Errorf("unexpected version format: %s", version)
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}
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majorVersion, err := strconv.Atoi(parts[0])
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if err != nil {
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return 0, 0, fmt.Errorf("failed to parse major version: %v", err)
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}
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minorVersion, err := strconv.Atoi(parts[1])
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if err != nil {
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return 0, 0, fmt.Errorf("failed to parse minor version: %v", err)
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}
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return majorVersion, minorVersion, nil
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}
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func isUbuntu() error {
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cmd := exec.Command("lsb_release", "-is")
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output, err := cmd.Output()
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if err != nil {
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return fmt.Errorf("failed to run lsb_release: %v", err)
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}
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if strings.TrimSpace(string(output)) != "Ubuntu" {
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return fmt.Errorf("this program is only for Ubuntu")
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}
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return nil
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}
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func findSourcesFilePath() (string, error) {
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const sourcesListPath = "/etc/apt/sources.list"
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const sourcesListDPath = "/etc/apt/sources.list.d/"
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if isUbuntuSourcesFile(sourcesListPath) {
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log.Printf("Found Ubuntu sources file: %s", sourcesListPath)
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return sourcesListPath, nil
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}
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files, err := os.ReadDir(sourcesListDPath)
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if err != nil {
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return "", fmt.Errorf("failed to read directory %s: %v", sourcesListDPath, err)
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}
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for _, file := range files {
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if file.IsDir() {
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continue
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}
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filePath := filepath.Join(sourcesListDPath, file.Name())
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if isUbuntuSourcesFile(filePath) {
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log.Printf("Found Ubuntu sources file: %s", filePath)
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return filePath, nil
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}
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}
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return "", fmt.Errorf("no Ubuntu sources file found")
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}
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func isUbuntuSourcesFile(filePath string) bool {
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content, err := os.ReadFile(filePath)
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if err != nil {
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log.Printf("Failed to read file %s: %v", filePath, err)
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return false
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}
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return strings.Contains(strings.ToLower(string(content)), "ubuntu.com")
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}
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func createBackup(filePath string) error {
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backupPath := filePath + ".bak"
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if _, err := os.Stat(backupPath); err == nil {
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return fmt.Errorf("backup file %s already exists", backupPath)
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}
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if err := os.Rename(filePath, backupPath); err != nil {
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return fmt.Errorf("failed to create backup of %s: %v", filePath, err)
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}
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log.Printf("Created backup: %s", backupPath)
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return nil
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}
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func createSourcesListD() error {
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const sourcesListDPath = "/etc/apt/sources.list.d/"
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if _, err := os.Stat(sourcesListDPath); os.IsNotExist(err) {
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if err := os.Mkdir(sourcesListDPath, 0755); err != nil {
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return fmt.Errorf("failed to create directory %s: %v", sourcesListDPath, err)
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}
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log.Printf("Created directory: %s", sourcesListDPath)
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}
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return nil
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}
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func findFastestMirror() (string, time.Duration, []time.Duration, error) {
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log.Println("Fetching mirrors list")
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resp, err := http.Get("http://mirrors.ubuntu.com/mirrors.txt")
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if err != nil {
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return "", 0, nil, fmt.Errorf("failed to fetch mirrors list: %v", err)
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", 0, nil, fmt.Errorf("failed to read mirrors list: %v", err)
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}
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mirrors := strings.Split(string(body), "\n")
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log.Printf("Found %d mirrors", len(mirrors))
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var fastestMirrorURL string
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var fastestTime time.Duration
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var latencies []time.Duration
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downCount := 0
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noIndexCount := 0
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codename, err := getUbuntuCodename()
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if err != nil {
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return "", 0, nil, err
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}
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httpClient := http.Client{
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Timeout: 1 * time.Second,
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}
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log.Println("Testing mirrors for latency")
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bar := progressbar.Default(int64(len(mirrors)))
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for _, mirror := range mirrors {
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if err := bar.Add(1); err != nil {
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log.Printf("Error updating progress bar: %v", err)
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}
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if strings.HasPrefix(mirror, "https://") {
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mirror = strings.TrimSuffix(mirror, "/")
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startTime := time.Now()
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isValid := isValidMirror(httpClient, mirror, codename)
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elapsedTime := time.Since(startTime)
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if isValid {
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latencies = append(latencies, elapsedTime)
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if fastestMirrorURL == "" || elapsedTime < fastestTime {
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fastestMirrorURL = mirror
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fastestTime = elapsedTime
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}
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} else {
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noIndexCount++
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}
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} else {
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downCount++
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}
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}
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if fastestMirrorURL == "" {
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return "", 0, nil, fmt.Errorf("no suitable HTTPS mirror found")
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}
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displayLatencyStatistics(latencies, fastestMirrorURL, fastestTime)
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log.Printf("Number of mirrors that were down: %d", downCount)
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log.Printf("Number of mirrors without required package index: %d", noIndexCount)
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return fastestMirrorURL, fastestTime, latencies, nil
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}
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func isValidMirror(httpClient http.Client, mirrorURL, codename string) bool {
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uri := fmt.Sprintf("%s/dists/%s/Release", mirrorURL, codename)
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resp, err := httpClient.Get(uri)
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if err != nil {
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return false
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}
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defer resp.Body.Close()
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return resp.StatusCode == http.StatusOK
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}
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func extractSuites(filePath string) ([]string, error) {
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content, err := os.ReadFile(filePath)
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if err != nil {
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return nil, fmt.Errorf("failed to read file %s: %v", filePath, err)
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}
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var suites []string
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scanner := bufio.NewScanner(strings.NewReader(string(content)))
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isModernFormat := false
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "Types:") {
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isModernFormat = true
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break
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}
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}
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scanner = bufio.NewScanner(strings.NewReader(string(content)))
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if isModernFormat {
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "Suites:") {
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parts := strings.Fields(line)
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suites = append(suites, parts[1:]...)
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}
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}
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} else {
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "deb ") || strings.HasPrefix(line, "deb-src ") {
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parts := strings.Fields(line)
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if len(parts) >= 4 {
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suites = append(suites, parts[3])
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}
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}
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, fmt.Errorf("failed to scan file %s: %v", filePath, err)
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}
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return suites, nil
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}
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func displayLatencyStatistics(latencies []time.Duration, fastestMirrorURL string, fastestTime time.Duration) {
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if len(latencies) == 0 {
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log.Println("No latencies recorded")
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return
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}
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var totalLatency time.Duration
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var minLatency time.Duration = latencies[0]
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var maxLatency time.Duration = latencies[0]
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for _, latency := range latencies {
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totalLatency += latency
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if latency < minLatency {
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minLatency = latency
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}
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if latency > maxLatency {
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maxLatency = latency
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}
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}
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averageLatency := totalLatency / time.Duration(len(latencies))
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log.Printf("Minimum latency: %s", minLatency)
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log.Printf("Maximum latency: %s", maxLatency)
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log.Printf("Average latency: %s", averageLatency)
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log.Printf("Chosen fastest mirror: %s with latency: %s", fastestMirrorURL, fastestTime)
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}
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func updateSourcesFile(filePath, mirrorURL string, suites []string) error {
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codename, err := getUbuntuCodename()
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if err != nil {
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return err
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}
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majorVersion, minorVersion, err := getUbuntuVersion()
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if err != nil {
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return err
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}
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suitesString := strings.Join(suites, " ")
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var content string
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data := struct {
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MirrorURL string
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Codename string
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Suites string
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}{
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MirrorURL: mirrorURL,
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Codename: codename,
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Suites: suitesString,
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}
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if majorVersion > 24 || (majorVersion == 24 && minorVersion >= 4) {
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tmpl, err := template.New("modern").Parse(modernTemplate)
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if err != nil {
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return fmt.Errorf("failed to parse modern template: %v", err)
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}
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var buf strings.Builder
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err = tmpl.Execute(&buf, data)
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if err != nil {
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return fmt.Errorf("failed to execute modern template: %v", err)
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}
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content = buf.String()
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} else {
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tmpl, err := template.New("legacy").Parse(legacyTemplate)
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if err != nil {
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return fmt.Errorf("failed to parse legacy template: %v", err)
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}
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var buf strings.Builder
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err = tmpl.Execute(&buf, data)
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if err != nil {
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return fmt.Errorf("failed to execute legacy template: %v", err)
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}
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content = buf.String()
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}
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err = os.WriteFile(filePath, []byte(content), 0644)
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if err != nil {
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return fmt.Errorf("failed to update sources file %s: %v", filePath, err)
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}
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log.Printf("Updated sources file: %s", filePath)
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return nil
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}
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@ -0,0 +1,56 @@
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package fastmirror
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import (
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"log"
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"runtime"
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)
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func CLIEntry() {
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log.Println("Starting Fastmirror CLI")
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if runtime.GOOS != "linux" {
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log.Fatal("This program is only for Linux")
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}
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if err := isUbuntu(); err != nil {
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log.Fatal(err)
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}
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sourcesFilePath, err := findSourcesFilePath()
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Found sources file: %s", sourcesFilePath)
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// Extract suites from the existing sources file
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suites, err := extractSuites(sourcesFilePath)
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Extracted suites: %v", suites)
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// Create backup of the sources file
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if err := createBackup(sourcesFilePath); err != nil {
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log.Fatal(err)
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}
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// Create sources.list.d directory if it doesn't exist
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if err := createSourcesListD(); err != nil {
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log.Fatal(err)
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}
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// Fetch and find the fastest mirror
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fastestMirrorURL, fastestTime, latencies, err := findFastestMirror(suites)
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("Fastest mirror: %s", fastestMirrorURL)
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// Display latency statistics
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displayLatencyStatistics(latencies, fastestMirrorURL, fastestTime)
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// Update sources file with the fastest mirror
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if err := updateSourcesFile(sourcesFilePath, fastestMirrorURL, suites); err != nil {
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log.Fatal(err)
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}
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log.Println("Fastmirror CLI finished successfully")
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}
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@ -0,0 +1,121 @@
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package fastmirror
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import (
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"fmt"
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"io"
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"log"
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"net/http"
|
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"strings"
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"time"
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"github.com/schollz/progressbar/v3"
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)
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func findFastestMirror(suites []string) (string, time.Duration, []time.Duration, error) {
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log.Println("Fetching mirrors list")
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resp, err := http.Get("http://mirrors.ubuntu.com/mirrors.txt")
|
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if err != nil {
|
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return "", 0, nil, fmt.Errorf("failed to fetch mirrors list: %v", err)
|
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", 0, nil, fmt.Errorf("failed to read mirrors list: %v", err)
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}
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mirrors := strings.Split(string(body), "\n")
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log.Printf("Found %d mirrors", len(mirrors))
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var fastestMirrorURL string
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var fastestTime time.Duration
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var latencies []time.Duration
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downCount := 0
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noIndexCount := 0
|
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|
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codename, err := getUbuntuCodename()
|
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if err != nil {
|
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return "", 0, nil, err
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}
|
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|
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httpClient := http.Client{
|
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Timeout: 1 * time.Second,
|
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}
|
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|
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log.Println("Testing mirrors for latency")
|
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bar := progressbar.Default(int64(len(mirrors)))
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|
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for _, mirror := range mirrors {
|
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if err := bar.Add(1); err != nil {
|
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log.Printf("Error updating progress bar: %v", err)
|
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}
|
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if strings.HasPrefix(mirror, "https://") {
|
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mirror = strings.TrimSuffix(mirror, "/")
|
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startTime := time.Now()
|
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isValid := isValidMirror(httpClient, mirror, codename, suites)
|
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elapsedTime := time.Since(startTime)
|
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|
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if isValid {
|
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latencies = append(latencies, elapsedTime)
|
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if fastestMirrorURL == "" || elapsedTime < fastestTime {
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fastestMirrorURL = mirror
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fastestTime = elapsedTime
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}
|
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} else {
|
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noIndexCount++
|
||||
}
|
||||
} else {
|
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downCount++
|
||||
}
|
||||
}
|
||||
|
||||
if fastestMirrorURL == "" {
|
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return "", 0, nil, fmt.Errorf("no suitable HTTPS mirror found")
|
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}
|
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|
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displayLatencyStatistics(latencies, fastestMirrorURL, fastestTime)
|
||||
log.Printf("Number of mirrors that were down: %d", downCount)
|
||||
log.Printf("Number of mirrors without required package index: %d", noIndexCount)
|
||||
|
||||
return fastestMirrorURL, fastestTime, latencies, nil
|
||||
}
|
||||
|
||||
func isValidMirror(httpClient http.Client, mirrorURL, codename string, suites []string) bool {
|
||||
for _, suite := range suites {
|
||||
uri := fmt.Sprintf("%s/dists/%s/Release", mirrorURL, suite)
|
||||
resp, err := httpClient.Get(uri)
|
||||
if err != nil || resp.StatusCode != http.StatusOK {
|
||||
return false
|
||||
}
|
||||
resp.Body.Close()
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func displayLatencyStatistics(latencies []time.Duration, fastestMirrorURL string, fastestTime time.Duration) {
|
||||
if len(latencies) == 0 {
|
||||
log.Println("No latencies recorded")
|
||||
return
|
||||
}
|
||||
|
||||
var totalLatency time.Duration
|
||||
var minLatency time.Duration = latencies[0]
|
||||
var maxLatency time.Duration = latencies[0]
|
||||
|
||||
for _, latency := range latencies {
|
||||
totalLatency += latency
|
||||
if latency < minLatency {
|
||||
minLatency = latency
|
||||
}
|
||||
if latency > maxLatency {
|
||||
maxLatency = latency
|
||||
}
|
||||
}
|
||||
|
||||
averageLatency := totalLatency / time.Duration(len(latencies))
|
||||
|
||||
log.Printf("Minimum latency: %s", minLatency)
|
||||
log.Printf("Maximum latency: %s", maxLatency)
|
||||
log.Printf("Average latency: %s", averageLatency)
|
||||
log.Printf("Chosen fastest mirror: %s with latency: %s", fastestMirrorURL, fastestTime)
|
||||
}
|
||||
|
|
@ -0,0 +1,177 @@
|
|||
package fastmirror
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
_ "embed"
|
||||
"fmt"
|
||||
"html/template"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
)
|
||||
|
||||
//go:embed sources_list_legacy.tmpl
|
||||
var legacyTemplate string
|
||||
|
||||
//go:embed sources_list_modern.tmpl
|
||||
var modernTemplate string
|
||||
|
||||
func findSourcesFilePath() (string, error) {
|
||||
const sourcesListPath = "/etc/apt/sources.list"
|
||||
const sourcesListDPath = "/etc/apt/sources.list.d/"
|
||||
if isUbuntuSourcesFile(sourcesListPath) {
|
||||
log.Printf("Found Ubuntu sources file: %s", sourcesListPath)
|
||||
return sourcesListPath, nil
|
||||
}
|
||||
files, err := os.ReadDir(sourcesListDPath)
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("failed to read directory %s: %v", sourcesListDPath, err)
|
||||
}
|
||||
|
||||
for _, file := range files {
|
||||
if file.IsDir() {
|
||||
continue
|
||||
}
|
||||
|
||||
filePath := filepath.Join(sourcesListDPath, file.Name())
|
||||
if isUbuntuSourcesFile(filePath) {
|
||||
log.Printf("Found Ubuntu sources file: %s", filePath)
|
||||
return filePath, nil
|
||||
}
|
||||
}
|
||||
return "", fmt.Errorf("no Ubuntu sources file found")
|
||||
}
|
||||
|
||||
func isUbuntuSourcesFile(filePath string) bool {
|
||||
content, err := os.ReadFile(filePath)
|
||||
if err != nil {
|
||||
log.Printf("Failed to read file %s: %v", filePath, err)
|
||||
return false
|
||||
}
|
||||
|
||||
return strings.Contains(strings.ToLower(string(content)), "ubuntu.com")
|
||||
}
|
||||
|
||||
func createBackup(filePath string) error {
|
||||
backupPath := filePath + ".bak"
|
||||
if _, err := os.Stat(backupPath); err == nil {
|
||||
return fmt.Errorf("backup file %s already exists", backupPath)
|
||||
}
|
||||
if err := os.Rename(filePath, backupPath); err != nil {
|
||||
return fmt.Errorf("failed to create backup of %s: %v", filePath, err)
|
||||
}
|
||||
log.Printf("Created backup: %s", backupPath)
|
||||
return nil
|
||||
}
|
||||
|
||||
func createSourcesListD() error {
|
||||
const sourcesListDPath = "/etc/apt/sources.list.d/"
|
||||
if _, err := os.Stat(sourcesListDPath); os.IsNotExist(err) {
|
||||
if err := os.Mkdir(sourcesListDPath, 0755); err != nil {
|
||||
return fmt.Errorf("failed to create directory %s: %v", sourcesListDPath, err)
|
||||
}
|
||||
log.Printf("Created directory: %s", sourcesListDPath)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func extractSuites(filePath string) ([]string, error) {
|
||||
content, err := os.ReadFile(filePath)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to read file %s: %v", filePath, err)
|
||||
}
|
||||
|
||||
var suites []string
|
||||
scanner := bufio.NewScanner(strings.NewReader(string(content)))
|
||||
|
||||
isModernFormat := false
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
if strings.HasPrefix(line, "Types:") {
|
||||
isModernFormat = true
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
scanner = bufio.NewScanner(strings.NewReader(string(content)))
|
||||
if isModernFormat {
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
if strings.HasPrefix(line, "Suites:") {
|
||||
parts := strings.Fields(line)
|
||||
suites = append(suites, parts[1:]...)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
if strings.HasPrefix(line, "deb ") || strings.HasPrefix(line, "deb-src ") {
|
||||
parts := strings.Fields(line)
|
||||
if len(parts) >= 4 {
|
||||
suites = append(suites, parts[3])
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
return nil, fmt.Errorf("failed to scan file %s: %v", filePath, err)
|
||||
}
|
||||
return suites, nil
|
||||
}
|
||||
|
||||
func updateSourcesFile(filePath, mirrorURL string, suites []string) error {
|
||||
codename, err := getUbuntuCodename()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
majorVersion, minorVersion, err := getUbuntuVersion()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
suitesString := strings.Join(suites, " ")
|
||||
|
||||
var content string
|
||||
data := struct {
|
||||
MirrorURL string
|
||||
Codename string
|
||||
Suites string
|
||||
}{
|
||||
MirrorURL: mirrorURL,
|
||||
Codename: codename,
|
||||
Suites: suitesString,
|
||||
}
|
||||
|
||||
if majorVersion > 24 || (majorVersion == 24 && minorVersion >= 4) {
|
||||
tmpl, err := template.New("modern").Parse(modernTemplate)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to parse modern template: %v", err)
|
||||
}
|
||||
var buf strings.Builder
|
||||
err = tmpl.Execute(&buf, data)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to execute modern template: %v", err)
|
||||
}
|
||||
content = buf.String()
|
||||
} else {
|
||||
tmpl, err := template.New("legacy").Parse(legacyTemplate)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to parse legacy template: %v", err)
|
||||
}
|
||||
var buf strings.Builder
|
||||
err = tmpl.Execute(&buf, data)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to execute legacy template: %v", err)
|
||||
}
|
||||
content = buf.String()
|
||||
}
|
||||
|
||||
err = os.WriteFile(filePath, []byte(content), 0644)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to update sources file %s: %v", filePath, err)
|
||||
}
|
||||
log.Printf("Updated sources file: %s", filePath)
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
package fastmirror
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os/exec"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func getUbuntuCodename() (string, error) {
|
||||
cmd := exec.Command("lsb_release", "-cs")
|
||||
output, err := cmd.Output()
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("failed to run lsb_release: %v", err)
|
||||
}
|
||||
return strings.TrimSpace(string(output)), nil
|
||||
}
|
||||
|
||||
func getUbuntuVersion() (int, int, error) {
|
||||
cmd := exec.Command("lsb_release", "-rs")
|
||||
output, err := cmd.Output()
|
||||
if err != nil {
|
||||
return 0, 0, fmt.Errorf("failed to run lsb_release: %v", err)
|
||||
}
|
||||
version := strings.TrimSpace(string(output))
|
||||
parts := strings.Split(version, ".")
|
||||
if len(parts) != 2 {
|
||||
return 0, 0, fmt.Errorf("unexpected version format: %s", version)
|
||||
}
|
||||
majorVersion, err := strconv.Atoi(parts[0])
|
||||
if err != nil {
|
||||
return 0, 0, fmt.Errorf("failed to parse major version: %v", err)
|
||||
}
|
||||
minorVersion, err := strconv.Atoi(parts[1])
|
||||
if err != nil {
|
||||
return 0, 0, fmt.Errorf("failed to parse minor version: %v", err)
|
||||
}
|
||||
return majorVersion, minorVersion, nil
|
||||
}
|
||||
|
||||
func isUbuntu() error {
|
||||
cmd := exec.Command("lsb_release", "-is")
|
||||
output, err := cmd.Output()
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to run lsb_release: %v", err)
|
||||
}
|
||||
|
||||
if strings.TrimSpace(string(output)) != "Ubuntu" {
|
||||
return fmt.Errorf("this program is only for Ubuntu")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue