func addVCS()

in main.go [430:464]

• 34 lines of code
• 7 McCabe index (conditional complexity)

func addVCS(pkgpath string, doc map[string]interface{}) {
	pkg, err := build.Import(pkgpath, "", build.FindOnly)
	if err != nil {
		return
	}
	vcsCmd, _, err := vcs.FromDir(pkg.Dir, pkg.SrcRoot)
	if err != nil {
		return
	}

	switch vcsCmd.Cmd {
	case "git":
		cmd := exec.Command("git", "log", "-1", "--format=%H %ct %s")
		cmd.Dir = pkg.Dir
		output, err := cmd.CombinedOutput()
		if err != nil {
			return
		}
		fields := strings.SplitN(strings.TrimSpace(string(output)), " ", 3)
		if len(fields) == 3 {
			gitFields := map[string]interface{}{
				fieldGitCommit:  fields[0],
				fieldGitSubject: fields[2],
			}
			unixSec, err := strconv.ParseInt(fields[1], 10, 64)
			if err == nil {
				committerDate := time.Unix(unixSec, 0).UTC()
				gitFields[fieldGitCommitter] = map[string]interface{}{
					fieldGitCommitterDate: committerDate,
				}
			}
			doc[fieldGit] = gitFields
		}
	}
}