func (s *filestorageSuite) TestGetRefusesTemp(c *gc.C) {
s.createFile(c, ".tmp/test-file")
_, err := storage.Get(s.reader, ".tmp/test-file")
c.Check(err, gc.NotNil)
c.Check(err, jc.Satisfies, os.IsNotExist)
s.createFile(c, ".tmp/foo/test-file")
_, err = storage.Get(s.reader, ".tmp/foo/test-file")
c.Check(err, gc.NotNil)
c.Check(err, jc.Satisfies, os.IsNotExist)
}
// LoadState reads state from the given storage.
func LoadState(stor storage.StorageReader) (*BootstrapState, error) {
r, err := storage.Get(stor, StateFile)
if err != nil {
if errors.IsNotFound(err) {
return nil, environs.ErrNotBootstrapped
}
return nil, err
}
return loadState(r)
}
func storageCopy(source storage.Storage, sourcePath string, target storage.Storage, targetPath string) error {
rc, err := storage.Get(source, sourcePath)
if err != nil {
return err
}
var buf bytes.Buffer
_, err = io.Copy(&buf, rc)
rc.Close()
if err != nil {
return err
}
return target.Put(targetPath, &buf, int64(buf.Len()))
}
func (t *LiveTests) TestBootstrapVerifyStorage(c *gc.C) {
// Bootstrap automatically verifies that storage is writable.
t.BootstrapOnce(c)
environ := t.Env
stor := environ.Storage()
reader, err := storage.Get(stor, "bootstrap-verify")
c.Assert(err, gc.IsNil)
defer reader.Close()
contents, err := ioutil.ReadAll(reader)
c.Assert(err, gc.IsNil)
c.Check(string(contents), gc.Equals,
"juju-core storage writing verified: ok\n")
}
func (s *verifyStorageSuite) TestVerifyStorage(c *gc.C) {
ctx := testing.Context(c)
environ, err := environs.PrepareFromName("test", ctx, configstore.NewMem())
c.Assert(err, gc.IsNil)
stor := environ.Storage()
err = environs.VerifyStorage(stor)
c.Assert(err, gc.IsNil)
reader, err := storage.Get(stor, environs.VerificationFilename)
c.Assert(err, gc.IsNil)
defer reader.Close()
contents, err := ioutil.ReadAll(reader)
c.Assert(err, gc.IsNil)
c.Check(string(contents), gc.Equals,
"juju-core storage writing verified: ok\n")
}
func (suite *StateSuite) TestCreateStateFileWritesEmptyStateFile(c *gc.C) {
stor := suite.newStorage(c)
url, err := bootstrap.CreateStateFile(stor)
c.Assert(err, gc.IsNil)
reader, err := storage.Get(stor, bootstrap.StateFile)
c.Assert(err, gc.IsNil)
data, err := ioutil.ReadAll(reader)
c.Assert(err, gc.IsNil)
c.Check(string(data), gc.Equals, "")
c.Assert(url, gc.NotNil)
expectedURL, err := stor.URL(bootstrap.StateFile)
c.Assert(err, gc.IsNil)
c.Check(url, gc.Equals, expectedURL)
}
// CheckEnvironment checks if an environment has a bootstrap-verify
// that is written by juju-core commands (as compared to one being
// written by Python juju).
//
// If there is no bootstrap-verify file in the storage, it is still
// considered to be a Juju-core environment since early versions have
// not written it out.
//
// Returns InvalidEnvironmentError on failure, nil otherwise.
func CheckEnvironment(environ Environ) error {
stor := environ.Storage()
reader, err := storage.Get(stor, VerificationFilename)
if errors.IsNotFound(err) {
// When verification file does not exist, this is a juju-core
// environment.
return nil
} else if err != nil {
return err
} else if content, err := ioutil.ReadAll(reader); err != nil {
return err
} else if string(content) != verificationContent {
return InvalidEnvironmentError
}
return nil
}
func (suite *StateSuite) TestSaveStateWritesStateFile(c *gc.C) {
stor := suite.newStorage(c)
state := bootstrap.BootstrapState{
StateInstances: []instance.Id{instance.Id("an-instance-id")},
}
marshaledState, err := goyaml.Marshal(state)
c.Assert(err, gc.IsNil)
err = bootstrap.SaveState(stor, &state)
c.Assert(err, gc.IsNil)
loadedState, err := storage.Get(stor, bootstrap.StateFile)
c.Assert(err, gc.IsNil)
content, err := ioutil.ReadAll(loadedState)
c.Assert(err, gc.IsNil)
c.Check(content, gc.DeepEquals, marshaledState)
}
func checkRemoveAll(c *gc.C, stor storage.Storage) {
contents := []byte("File contents.")
aFile := "a-file.txt"
err := stor.Put(aFile, bytes.NewBuffer(contents), int64(len(contents)))
c.Assert(err, gc.IsNil)
err = stor.Put("empty-file", bytes.NewBuffer(nil), 0)
c.Assert(err, gc.IsNil)
err = stor.RemoveAll()
c.Assert(err, gc.IsNil)
files, err := storage.List(stor, "")
c.Assert(err, gc.IsNil)
c.Check(files, gc.HasLen, 0)
_, err = storage.Get(stor, aFile)
c.Assert(err, gc.NotNil)
c.Check(err, gc.ErrorMatches, fmt.Sprintf("file %q not found", aFile))
}
func checkFileHasContents(c *gc.C, stor storage.StorageReader, name string, contents []byte) {
r, err := storage.Get(stor, name)
c.Assert(err, gc.IsNil)
c.Check(r, gc.NotNil)
defer r.Close()
data, err := ioutil.ReadAll(r)
c.Check(err, gc.IsNil)
c.Check(data, gc.DeepEquals, contents)
url, err := stor.URL(name)
c.Assert(err, gc.IsNil)
resp, err := http.Get(url)
c.Assert(err, gc.IsNil)
data, err = ioutil.ReadAll(resp.Body)
c.Assert(err, gc.IsNil)
defer resp.Body.Close()
c.Assert(resp.StatusCode, gc.Equals, http.StatusOK, gc.Commentf("error response: %s", data))
c.Check(data, gc.DeepEquals, contents)
}
func (s *filestorageSuite) TestGet(c *gc.C) {
expectedpath, data := s.createFile(c, "test-file")
_, file := filepath.Split(expectedpath)
rc, err := storage.Get(s.reader, file)
c.Assert(err, gc.IsNil)
defer rc.Close()
c.Assert(err, gc.IsNil)
b, err := ioutil.ReadAll(rc)
c.Assert(err, gc.IsNil)
c.Assert(b, gc.DeepEquals, data)
// Get on a non-existant path returns errors.NotFound
_, err = s.reader.Get("nowhere")
c.Assert(err, jc.Satisfies, errors.IsNotFound)
// Get on a directory returns errors.NotFound
s.createFile(c, "dir/file")
_, err = s.reader.Get("dir")
c.Assert(err, jc.Satisfies, errors.IsNotFound)
}
func (s *EmptyStorageSuite) TestGet(c *gc.C) {
f, err := storage.Get(environs.EmptyStorage, "anything")
c.Assert(f, gc.IsNil)
c.Assert(err, gc.ErrorMatches, `file "anything" not found`)
}
func checkFileDoesNotExist(c *gc.C, stor storage.StorageReader, name string) {
r, err := storage.Get(stor, name)
c.Assert(r, gc.IsNil)
c.Assert(err, jc.Satisfies, errors.IsNotFound)
}