package examples import ( "flag" "go/build" "io/ioutil" "os" "os/exec" "path/filepath" "testing" ) var examplesTest = flag.Bool("examples", false, "run the examples tests") var defaultURL = "https://github.com/git-fixtures/basic.git" var args = map[string][]string{ "branch": {defaultURL, tempFolder()}, "checkout": {defaultURL, tempFolder(), "35e85108805c84807bc66a02d91535e1e24b38b9"}, "clone": {defaultURL, tempFolder()}, "context": {defaultURL, tempFolder()}, "commit": {cloneRepository(defaultURL, tempFolder())}, "custom_http": {defaultURL}, "open": {cloneRepository(defaultURL, tempFolder())}, "progress": {defaultURL, tempFolder()}, "push": {setEmptyRemote(cloneRepository(defaultURL, tempFolder()))}, "revision": {cloneRepository(defaultURL, tempFolder()), "master~2^"}, "showcase": {defaultURL, tempFolder()}, "tag": {cloneRepository(defaultURL, tempFolder())}, "pull": {createRepositoryWithRemote(tempFolder(), defaultURL)}, "ls": {cloneRepository(defaultURL, tempFolder()), "HEAD", "vendor"}, "merge_base": {cloneRepository(defaultURL, tempFolder()), "--is-ancestor", "HEAD~3", "HEAD^"}, } var ignored = map[string]bool{} var tempFolders = []string{} func TestExamples(t *testing.T) { flag.Parse() if !*examplesTest && os.Getenv("CI") == "" { t.Skip("skipping examples tests, pass --examples to execute it") return } defer deleteTempFolders() examples, err := filepath.Glob(examplesFolder()) if err != nil { t.Errorf("error finding tests: %s", err) } for _, example := range examples { dir := filepath.Dir(example) _, name := filepath.Split(dir) if ignored[name] { continue } t.Run(name, func(t *testing.T) { testExample(t, name, dir) }) } } func tempFolder() string { path, err := ioutil.TempDir("", "") CheckIfError(err) tempFolders = append(tempFolders, path) return path } func packageFolder() string { return filepath.Join( build.Default.GOPATH, "src", "github.com/go-git/go-git/v5", ) } func examplesFolder() string { return filepath.Join( packageFolder(), "_examples", "*", "main.go", ) } func cloneRepository(url, folder string) string { cmd := exec.Command("git", "clone", url, folder) err := cmd.Run() CheckIfError(err) return folder } func createBareRepository(dir string) string { return createRepository(dir, true) } func createRepository(dir string, isBare bool) string { var cmd *exec.Cmd if isBare { cmd = exec.Command("git", "init", "--bare", dir) } else { cmd = exec.Command("git", "init", dir) } err := cmd.Run() CheckIfError(err) return dir } func createRepositoryWithRemote(local, remote string) string { createRepository(local, false) addRemote(local, remote) return local } func setEmptyRemote(dir string) string { remote := createBareRepository(tempFolder()) setRemote(dir, remote) return dir } func setRemote(local, remote string) { cmd := exec.Command("git", "remote", "set-url", "origin", remote) cmd.Dir = local err := cmd.Run() CheckIfError(err) } func addRemote(local, remote string) { cmd := exec.Command("git", "remote", "add", "origin", remote) cmd.Dir = local err := cmd.Run() CheckIfError(err) } func testExample(t *testing.T, name, dir string) { arguments := append([]string{"run", dir}, args[name]...) cmd := exec.Command("go", arguments...) cmd.Stdout = os.Stdout cmd.Stderr = os.Stderr if err := cmd.Run(); err != nil { t.Errorf("error running cmd %q", err) } } func deleteTempFolders() { for _, folder := range tempFolders { err := os.RemoveAll(folder) CheckIfError(err) } }