packer-cn/vendor/github.com/digitalocean/godo/snapshots.go

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2017-04-08 15:52:57 -04:00
package godo
import (
"context"
"fmt"
)
const snapshotBasePath = "v2/snapshots"
// SnapshotsService is an interface for interfacing with the snapshots
// endpoints of the DigitalOcean API
// See: https://developers.digitalocean.com/documentation/v2#snapshots
type SnapshotsService interface {
List(context.Context, *ListOptions) ([]Snapshot, *Response, error)
ListVolume(context.Context, *ListOptions) ([]Snapshot, *Response, error)
ListDroplet(context.Context, *ListOptions) ([]Snapshot, *Response, error)
Get(context.Context, string) (*Snapshot, *Response, error)
Delete(context.Context, string) (*Response, error)
}
// SnapshotsServiceOp handles communication with the snapshot related methods of the
// DigitalOcean API.
type SnapshotsServiceOp struct {
client *Client
}
var _ SnapshotsService = &SnapshotsServiceOp{}
// Snapshot represents a DigitalOcean Snapshot
type Snapshot struct {
ID string `json:"id,omitempty"`
Name string `json:"name,omitempty"`
ResourceID string `json:"resource_id,omitempty"`
ResourceType string `json:"resource_type,omitempty"`
Regions []string `json:"regions,omitempty"`
MinDiskSize int `json:"min_disk_size,omitempty"`
SizeGigaBytes float64 `json:"size_gigabytes,omitempty"`
Created string `json:"created_at,omitempty"`
}
type snapshotRoot struct {
Snapshot *Snapshot `json:"snapshot"`
}
type snapshotsRoot struct {
Snapshots []Snapshot `json:"snapshots"`
Links *Links `json:"links,omitempty"`
}
type listSnapshotOptions struct {
ResourceType string `url:"resource_type,omitempty"`
}
func (s Snapshot) String() string {
return Stringify(s)
}
// List lists all the snapshots available.
func (s *SnapshotsServiceOp) List(ctx context.Context, opt *ListOptions) ([]Snapshot, *Response, error) {
return s.list(ctx, opt, nil)
}
// ListDroplet lists all the Droplet snapshots.
func (s *SnapshotsServiceOp) ListDroplet(ctx context.Context, opt *ListOptions) ([]Snapshot, *Response, error) {
listOpt := listSnapshotOptions{ResourceType: "droplet"}
return s.list(ctx, opt, &listOpt)
}
// ListVolume lists all the volume snapshots.
func (s *SnapshotsServiceOp) ListVolume(ctx context.Context, opt *ListOptions) ([]Snapshot, *Response, error) {
listOpt := listSnapshotOptions{ResourceType: "volume"}
return s.list(ctx, opt, &listOpt)
}
// Get retrieves an snapshot by id.
func (s *SnapshotsServiceOp) Get(ctx context.Context, snapshotID string) (*Snapshot, *Response, error) {
return s.get(ctx, snapshotID)
}
// Delete an snapshot.
func (s *SnapshotsServiceOp) Delete(ctx context.Context, snapshotID string) (*Response, error) {
path := fmt.Sprintf("%s/%s", snapshotBasePath, snapshotID)
req, err := s.client.NewRequest(ctx, "DELETE", path, nil)
if err != nil {
return nil, err
}
resp, err := s.client.Do(req, nil)
return resp, err
}
// Helper method for getting an individual snapshot
func (s *SnapshotsServiceOp) get(ctx context.Context, ID string) (*Snapshot, *Response, error) {
path := fmt.Sprintf("%s/%s", snapshotBasePath, ID)
req, err := s.client.NewRequest(ctx, "GET", path, nil)
if err != nil {
return nil, nil, err
}
root := new(snapshotRoot)
resp, err := s.client.Do(req, root)
if err != nil {
return nil, resp, err
}
return root.Snapshot, resp, err
}
// Helper method for listing snapshots
func (s *SnapshotsServiceOp) list(ctx context.Context, opt *ListOptions, listOpt *listSnapshotOptions) ([]Snapshot, *Response, error) {
path := snapshotBasePath
path, err := addOptions(path, opt)
if err != nil {
return nil, nil, err
}
path, err = addOptions(path, listOpt)
if err != nil {
return nil, nil, err
}
req, err := s.client.NewRequest(ctx, "GET", path, nil)
if err != nil {
return nil, nil, err
}
root := new(snapshotsRoot)
resp, err := s.client.Do(req, root)
if err != nil {
return nil, resp, err
}
if l := root.Links; l != nil {
resp.Links = l
}
return root.Snapshots, resp, err
}