Golang Environ.PublicStorage方法代码示例

// WritablePublicStorage returns a Storage instance which is authorised to write to the PublicStorage bucket.
// It is used by tests which need to upload files.
func WritablePublicStorage(e environs.Environ) environs.Storage {
	// In the case of ec2, access to the public storage instance is created with the user's AWS credentials.
	// So write access is there implicitly, and we just need to cast to a writable storage instance.
	// This contrasts with the openstack case, where the public storage instance truly is read only and we need
	// to create a separate writable instance. If the ec2 case ever changes, the changes are confined to this method.
	return e.PublicStorage().(environs.Storage)
}

// putNames puts a set of names into the environ's private
// and public storage. The data in the private storage is
// the name itself; in the public storage the name is preceded with "public-".
func putNames(c *C, env environs.Environ, private, public []string) {
	for _, name := range private {
		err := env.Storage().Put(name, strings.NewReader(name), int64(len(name)))
		c.Assert(err, IsNil)
	}
	// The contents of all files in the public storage is prefixed with "public-" so
	// that we can easily tell if we've got the right thing.
	for _, name := range public {
		data := "public-" + name
		err := env.PublicStorage().(environs.Storage).Put(name, strings.NewReader(data), int64(len(data)))
		c.Assert(err, IsNil)
	}
}

// RemoveAllTools deletes all tools from the supplied environment.
func RemoveAllTools(c *C, env environs.Environ) {
	c.Logf("clearing private storage")
	RemoveTools(c, env.Storage())
	c.Logf("clearing public storage")
	RemoveTools(c, env.PublicStorage().(environs.Storage))
}