.config/coc/extensions/coc-go-data/tools/pkg/mod/honnef.co/go/tools@v0.0.1-2020.1.5/_benchmarks/benchmark.go

   1 // +build ignore
   2
   3 package main
   4
   5 import (
   6         "bytes"
   7         "flag"
   8         "fmt"
   9         "os/exec"
  10         "strings"
  11 )
  12
  13 const theBigMerge = "0a9027c2bab9ca0d25a5db0f906fd1793774fd67"
  14 const N = 10
  15
  16 func isAfterMerge(sha string) bool {
  17         cmd := exec.Command("git", "merge-base", "--is-ancestor", theBigMerge, sha)
  18         err := cmd.Run()
  19         if err == nil {
  20                 return true
  21         }
  22         _ = err.(*exec.ExitError)
  23         return false
  24 }
  25
  26 func checkout(sha string) {
  27         cmd := exec.Command("git", "checkout", "-q", sha)
  28         err := cmd.Run()
  29         if err != nil {
  30                 panic(err)
  31         }
  32 }
  33
  34 func build(tool string) {
  35         err := exec.Command("go", "build", "-o", "/tmp/"+tool, "honnef.co/go/tools/cmd/"+tool).Run()
  36         if err != nil {
  37                 panic(err)
  38         }
  39 }
  40
  41 func run(tool, target string) (time, mem string) {
  42         cmd := exec.Command("/usr/bin/time", "-f", "%e %M", "/tmp/"+tool, target)
  43         out, _ := cmd.CombinedOutput()
  44         lines := bytes.Split(out, []byte("\n"))
  45         res := string(lines[len(lines)-2])
  46         fields := strings.Split(res, " ")
  47         return fields[0], fields[1]
  48 }
  49
  50 func main() {
  51         var (
  52                 shas    string
  53                 targets string
  54                 version string
  55         )
  56         flag.StringVar(&shas, "shas", "HEAD", "")
  57         flag.StringVar(&targets, "targets", "std", "")
  58         flag.StringVar(&version, "version", "unknown", "")
  59         flag.Parse()
  60
  61         for _, sha := range strings.Split(shas, ",") {
  62                 tool := "megacheck"
  63                 if isAfterMerge(sha) {
  64                         tool = "staticcheck"
  65                 }
  66                 checkout(sha)
  67                 build(tool)
  68
  69                 for _, target := range strings.Split(targets, ",") {
  70                         for i := 0; i < N; i++ {
  71                                 time, mem := run(tool, target)
  72                                 fmt.Printf("%s %s %s %s %s\n", sha, version, target, time, mem)
  73                         }
  74                 }
  75         }
  76 }