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package main
import (
"archive/tar"
"archive/zip"
"compress/gzip"
"fmt"
"path"
"runtime"
"strings"
)
func getK6(version, output string) error {
ext := "tar.gz"
if runtime.GOOS == "windows" {
ext = "zip"
}
osName := runtime.GOOS
if osName == "darwin" {
osName = "macos"
ext = "zip"
}
url := fmt.Sprintf("https://github.com/grafana/k6/releases/download/v%s/k6-v%s-%s-%s.%s",
version, version, osName, runtime.GOARCH, ext,
)
fd, n, err := fetchFile(url)
if err != nil {
return fmt.Errorf("fetch: %w", err)
}
defer fd.Close()
if ext == "zip" {
z, err := zip.NewReader(fd, n)
if err != nil {
return fmt.Errorf("open zip: %w", err)
}
name := strings.TrimSuffix(path.Base(url), ".zip") + "/k6"
if runtime.GOOS == "windows" {
name += ".exe"
}
err = extractFromZip(z, name, output, true)
if err != nil {
return fmt.Errorf("extract: %w", err)
}
return nil
}
gzr, err := gzip.NewReader(fd)
if err != nil {
return fmt.Errorf("deflate: %w", err)
}
defer gzr.Close()
r := tar.NewReader(gzr)
err = extractFromTar(r, "*/k6", output, true)
if err != nil {
return fmt.Errorf("extract: %w", err)
}
return nil
}
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