restic/run_integration_tests.go

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// +build ignore
package main
import (
"bufio"
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"bytes"
"errors"
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"flag"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"os/exec"
"path/filepath"
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"regexp"
"runtime"
"strings"
)
// ForbiddenImports are the packages from the stdlib that should not be used in
// our code.
var ForbiddenImports = map[string]bool{
"errors": true,
}
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var runCrossCompile = flag.Bool("cross-compile", true, "run cross compilation tests")
var minioServer = flag.String("minio", "", "path to the minio server binary")
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var debug = flag.Bool("debug", false, "output debug messages")
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var minioServerEnv = map[string]string{
"MINIO_ACCESS_KEY": "KEBIYDZ87HCIH5D17YCN",
"MINIO_SECRET_KEY": "bVX1KhipSBPopEfmhc7rGz8ooxx27xdJ7Gkh1mVe",
}
var minioEnv = map[string]string{
"RESTIC_TEST_S3_SERVER": "http://127.0.0.1:9000",
"AWS_ACCESS_KEY_ID": "KEBIYDZ87HCIH5D17YCN",
"AWS_SECRET_ACCESS_KEY": "bVX1KhipSBPopEfmhc7rGz8ooxx27xdJ7Gkh1mVe",
}
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func init() {
flag.Parse()
}
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// CIEnvironment is implemented by environments where tests can be run.
type CIEnvironment interface {
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Prepare() error
RunTests() error
Teardown() error
}
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// TravisEnvironment is the environment in which Travis tests run.
type TravisEnvironment struct {
goxOSArch []string
minio string
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minioSrv *Background
minioTempdir string
env map[string]string
}
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func (env *TravisEnvironment) getMinio() error {
if *minioServer != "" {
msg("using minio server at %q\n", *minioServer)
env.minio = *minioServer
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return nil
}
tempfile, err := ioutil.TempFile("", "minio-server-")
if err != nil {
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return fmt.Errorf("create tempfile for minio download failed: %v\n", err)
}
url := fmt.Sprintf("https://dl.minio.io/server/minio/release/%s-%s/minio",
runtime.GOOS, runtime.GOARCH)
msg("downloading %v\n", url)
res, err := http.Get(url)
if err != nil {
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return fmt.Errorf("error downloading minio server: %v\n", err)
}
_, err = io.Copy(tempfile, res.Body)
if err != nil {
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return fmt.Errorf("error saving minio server to file: %v\n", err)
}
err = res.Body.Close()
if err != nil {
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return fmt.Errorf("error closing HTTP download: %v\n", err)
}
err = tempfile.Close()
if err != nil {
msg("closing tempfile failed: %v\n", err)
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return fmt.Errorf("error closing minio server file: %v\n", err)
}
err = os.Chmod(tempfile.Name(), 0755)
if err != nil {
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return fmt.Errorf("chmod(minio-server) failed: %v", err)
}
msg("downloaded minio server to %v\n", tempfile.Name())
env.minio = tempfile.Name()
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return nil
}
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func (env *TravisEnvironment) runMinio() error {
if env.minio == "" {
return nil
}
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// start minio server
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msg("starting minio server at %s", env.minio)
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dir, err := ioutil.TempDir("", "minio-root")
if err != nil {
return fmt.Errorf("running minio server failed: %v", err)
}
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env.minioSrv, err = StartBackgroundCommand(minioServerEnv, env.minio,
"server",
"--address", "127.0.0.1:9000",
dir)
if err != nil {
return fmt.Errorf("error running minio server: %v", err)
}
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// go func() {
// time.Sleep(300 * time.Millisecond)
// env.minioSrv.Cmd.Process.Kill()
// }()
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for k, v := range minioEnv {
env.env[k] = v
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}
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env.minioTempdir = dir
return nil
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}
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// Prepare installs dependencies and starts services in order to run the tests.
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func (env *TravisEnvironment) Prepare() error {
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env.env = make(map[string]string)
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msg("preparing environment for Travis CI\n")
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for _, pkg := range []string{
"golang.org/x/tools/cmd/cover",
"github.com/pierrre/gotestcover",
} {
err := run("go", "get", pkg)
if err != nil {
return err
}
}
if err := env.getMinio(); err != nil {
return err
}
if err := env.runMinio(); err != nil {
return err
}
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if *runCrossCompile && !(runtime.Version() < "go1.7") {
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// only test cross compilation on linux with Travis
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if err := run("go", "get", "github.com/mitchellh/gox"); err != nil {
return err
}
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if runtime.GOOS == "linux" {
env.goxOSArch = []string{
"linux/386", "linux/amd64",
"windows/386", "windows/amd64",
"darwin/386", "darwin/amd64",
"freebsd/386", "freebsd/amd64",
"opendbsd/386", "opendbsd/amd64",
}
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if !strings.HasPrefix(runtime.Version(), "go1.3") {
env.goxOSArch = append(env.goxOSArch,
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"linux/arm", "freebsd/arm")
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}
} else {
env.goxOSArch = []string{runtime.GOOS + "/" + runtime.GOARCH}
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}
msg("gox: OS/ARCH %v\n", env.goxOSArch)
if runtime.Version() < "go1.5" {
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err := run("gox", "-build-toolchain",
"-osarch", strings.Join(env.goxOSArch, " "))
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if err != nil {
return err
}
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}
}
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return nil
}
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// Teardown stops backend services and cleans the environment again.
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func (env *TravisEnvironment) Teardown() error {
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msg("run travis teardown\n")
if env.minioSrv != nil {
msg("stopping minio server\n")
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if env.minioSrv.Cmd.ProcessState == nil {
err := env.minioSrv.Cmd.Process.Kill()
if err != nil {
fmt.Fprintf(os.Stderr, "error killing minio server process: %v", err)
}
} else {
result := <-env.minioSrv.Result
if result.Error != nil {
msg("minio server returned error: %v\n", result.Error)
msg("stdout: %s\n", result.Stdout)
msg("stderr: %s\n", result.Stderr)
}
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}
err := os.RemoveAll(env.minioTempdir)
if err != nil {
msg("error removing minio tempdir %v: %v\n", env.minioTempdir, err)
}
}
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return nil
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}
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func goVersionAtLeast151() bool {
v := runtime.Version()
if match, _ := regexp.MatchString(`^go1\.[0-4]`, v); match {
return false
}
if v == "go1.5" {
return false
}
return true
}
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// Background is a program running in the background.
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type Background struct {
Cmd *exec.Cmd
Result chan Result
}
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// Result is the result of a program that ran in the background.
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type Result struct {
Stdout, Stderr string
Error error
}
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// StartBackgroundCommand runs a program in the background.
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func StartBackgroundCommand(env map[string]string, cmd string, args ...string) (*Background, error) {
msg("running background command %v %v\n", cmd, args)
b := Background{
Result: make(chan Result, 1),
}
stdout := bytes.NewBuffer(nil)
stderr := bytes.NewBuffer(nil)
c := exec.Command(cmd, args...)
c.Stdout = stdout
c.Stderr = stderr
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if *debug {
c.Stdout = io.MultiWriter(c.Stdout, os.Stdout)
c.Stderr = io.MultiWriter(c.Stderr, os.Stderr)
}
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c.Env = updateEnv(os.Environ(), env)
b.Cmd = c
err := c.Start()
if err != nil {
msg("error starting background job %v: %v\n", cmd, err)
return nil, err
}
go func() {
err := b.Cmd.Wait()
msg("background job %v returned: %v\n", cmd, err)
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msg("stdout: %s\n", stdout.Bytes())
msg("stderr: %s\n", stderr.Bytes())
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b.Result <- Result{
Stdout: string(stdout.Bytes()),
Stderr: string(stderr.Bytes()),
Error: err,
}
}()
return &b, nil
}
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// RunTests starts the tests for Travis.
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func (env *TravisEnvironment) RunTests() error {
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// do not run fuse tests on darwin
if runtime.GOOS == "darwin" {
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msg("skip fuse integration tests on %v\n", runtime.GOOS)
os.Setenv("RESTIC_TEST_FUSE", "0")
}
cwd, err := os.Getwd()
if err != nil {
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return fmt.Errorf("Getwd() returned error: %v", err)
}
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env.env["GOPATH"] = cwd + ":" + filepath.Join(cwd, "vendor")
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if *runCrossCompile && !(runtime.Version() < "go1.7") {
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// compile for all target architectures with tags
for _, tags := range []string{"release", "debug"} {
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err := runWithEnv(env.env, "gox", "-verbose",
"-osarch", strings.Join(env.goxOSArch, " "),
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"-tags", tags,
"-output", "/tmp/{{.Dir}}_{{.OS}}_{{.Arch}}",
"cmds/restic")
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if err != nil {
return err
}
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}
}
// run the build script
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if err := run("go", "run", "build.go"); err != nil {
return err
}
// run the tests and gather coverage information
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err = runWithEnv(env.env, "gotestcover", "-coverprofile", "all.cov", "cmds/...", "restic/...")
if err != nil {
return err
}
if err = runGofmt(); err != nil {
return err
}
deps, err := findImports()
if err != nil {
return err
}
foundForbiddenImports := false
for name, imports := range deps {
for _, pkg := range imports {
if _, ok := ForbiddenImports[pkg]; ok {
fmt.Fprintf(os.Stderr, "========== package %v imports forbidden package %v\n", name, pkg)
foundForbiddenImports = true
}
}
}
if foundForbiddenImports {
return errors.New("CI: forbidden imports found")
}
return nil
}
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// AppveyorEnvironment is the environment on Windows.
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type AppveyorEnvironment struct{}
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// Prepare installs dependencies and starts services in order to run the tests.
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func (env *AppveyorEnvironment) Prepare() error {
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msg("preparing environment for Appveyor CI\n")
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return nil
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}
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// RunTests start the tests.
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func (env *AppveyorEnvironment) RunTests() error {
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return run("go", "run", "build.go", "-v", "-T")
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}
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// Teardown is a noop.
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func (env *AppveyorEnvironment) Teardown() error {
return nil
}
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// findGoFiles returns a list of go source code file names below dir.
func findGoFiles(dir string) (list []string, err error) {
err = filepath.Walk(dir, func(name string, fi os.FileInfo, err error) error {
if filepath.Base(name) == "vendor" {
return filepath.SkipDir
}
if filepath.Ext(name) == ".go" {
relpath, err := filepath.Rel(dir, name)
if err != nil {
return err
}
list = append(list, relpath)
}
return err
})
return list, err
}
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func msg(format string, args ...interface{}) {
fmt.Printf("CI: "+format, args...)
}
func updateEnv(env []string, override map[string]string) []string {
var newEnv []string
for _, s := range env {
d := strings.SplitN(s, "=", 2)
key := d[0]
if _, ok := override[key]; ok {
continue
}
newEnv = append(newEnv, s)
}
for k, v := range override {
newEnv = append(newEnv, k+"="+v)
}
return newEnv
}
func findImports() (map[string][]string, error) {
res := make(map[string][]string)
cwd, err := os.Getwd()
if err != nil {
return nil, fmt.Errorf("Getwd() returned error: %v", err)
}
gopath := cwd + ":" + filepath.Join(cwd, "vendor")
cmd := exec.Command("go", "list", "-f", `{{.ImportPath}} {{join .Imports " "}}`, "./src/...")
cmd.Env = updateEnv(os.Environ(), map[string]string{"GOPATH": gopath})
cmd.Stderr = os.Stderr
output, err := cmd.Output()
if err != nil {
return nil, err
}
sc := bufio.NewScanner(bytes.NewReader(output))
for sc.Scan() {
wordScanner := bufio.NewScanner(strings.NewReader(sc.Text()))
wordScanner.Split(bufio.ScanWords)
if !wordScanner.Scan() {
return nil, fmt.Errorf("package name not found in line: %s", output)
}
name := wordScanner.Text()
var deps []string
for wordScanner.Scan() {
deps = append(deps, wordScanner.Text())
}
res[name] = deps
}
return res, nil
}
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func runGofmt() error {
dir, err := os.Getwd()
if err != nil {
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return fmt.Errorf("Getwd(): %v\n", err)
}
files, err := findGoFiles(dir)
if err != nil {
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return fmt.Errorf("error finding Go files: %v\n", err)
}
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msg("runGofmt() with %d files\n", len(files))
args := append([]string{"-l"}, files...)
cmd := exec.Command("gofmt", args...)
cmd.Stderr = os.Stderr
buf, err := cmd.Output()
if err != nil {
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return fmt.Errorf("error running gofmt: %v\noutput: %s\n", err, buf)
}
if len(buf) > 0 {
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return fmt.Errorf("not formatted with `gofmt`:\n%s\n", buf)
}
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return nil
}
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func run(command string, args ...string) error {
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msg("run %v %v\n", command, strings.Join(args, " "))
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return runWithEnv(nil, command, args...)
}
// runWithEnv calls a command with the current environment, except the entries
// of the env map are set additionally.
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func runWithEnv(env map[string]string, command string, args ...string) error {
msg("runWithEnv %v %v\n", command, strings.Join(args, " "))
cmd := exec.Command(command, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if env != nil {
cmd.Env = updateEnv(os.Environ(), env)
}
err := cmd.Run()
if err != nil {
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return fmt.Errorf("error running %v %v: %v",
command, strings.Join(args, " "), err)
}
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return nil
}
func isTravis() bool {
return os.Getenv("TRAVIS_BUILD_DIR") != ""
}
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func isAppveyor() bool {
return runtime.GOOS == "windows"
}
func main() {
var env CIEnvironment
switch {
case isTravis():
env = &TravisEnvironment{}
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case isAppveyor():
env = &AppveyorEnvironment{}
default:
fmt.Fprintln(os.Stderr, "unknown CI environment")
os.Exit(1)
}
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foundError := false
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for _, f := range []func() error{env.Prepare, env.RunTests, env.Teardown} {
err := f()
if err != nil {
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foundError = true
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fmt.Fprintf(os.Stderr, "error: %v\n", err)
}
}
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if foundError {
os.Exit(1)
}
}