mirror of
https://github.com/octoleo/restic.git
synced 2024-11-27 07:16:40 +00:00
2b39f9f4b2
Among others, this updates minio-go, so that the new "eu-west-3" zone for AWS is supported.
115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package firestore
|
|
|
|
import (
|
|
"math/rand"
|
|
"os"
|
|
"sync"
|
|
"time"
|
|
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
// A CollectionRef is a reference to Firestore collection.
|
|
type CollectionRef struct {
|
|
c *Client
|
|
|
|
// Typically Parent.Path, or c.path if Parent is nil.
|
|
// May be different if this CollectionRef was created from a stored reference
|
|
// to a different project/DB.
|
|
parentPath string
|
|
|
|
// Parent is the document of which this collection is a part. It is
|
|
// nil for top-level collections.
|
|
Parent *DocumentRef
|
|
|
|
// The full resource path of the collection: "projects/P/databases/D/documents..."
|
|
Path string
|
|
|
|
// ID is the collection identifier.
|
|
ID string
|
|
|
|
// Use the methods of Query on a CollectionRef to create and run queries.
|
|
Query
|
|
}
|
|
|
|
func newTopLevelCollRef(c *Client, dbPath, id string) *CollectionRef {
|
|
return &CollectionRef{
|
|
c: c,
|
|
ID: id,
|
|
parentPath: dbPath,
|
|
Path: dbPath + "/documents/" + id,
|
|
Query: Query{c: c, collectionID: id, parentPath: dbPath},
|
|
}
|
|
}
|
|
|
|
func newCollRefWithParent(c *Client, parent *DocumentRef, id string) *CollectionRef {
|
|
return &CollectionRef{
|
|
c: c,
|
|
Parent: parent,
|
|
ID: id,
|
|
parentPath: parent.Path,
|
|
Path: parent.Path + "/" + id,
|
|
Query: Query{c: c, collectionID: id, parentPath: parent.Path},
|
|
}
|
|
}
|
|
|
|
// Doc returns a DocumentRef that refers to the document in the collection with the
|
|
// given identifier.
|
|
func (c *CollectionRef) Doc(id string) *DocumentRef {
|
|
if c == nil {
|
|
return nil
|
|
}
|
|
return newDocRef(c, id)
|
|
}
|
|
|
|
// NewDoc returns a DocumentRef with a uniquely generated ID.
|
|
func (c *CollectionRef) NewDoc() *DocumentRef {
|
|
return c.Doc(uniqueID())
|
|
}
|
|
|
|
// Add generates a DocumentRef with a unique ID. It then creates the document
|
|
// with the given data, which can be a map[string]interface{}, a struct or a
|
|
// pointer to a struct.
|
|
//
|
|
// Add returns an error in the unlikely event that a document with the same ID
|
|
// already exists.
|
|
func (c *CollectionRef) Add(ctx context.Context, data interface{}) (*DocumentRef, *WriteResult, error) {
|
|
d := c.NewDoc()
|
|
wr, err := d.Create(ctx, data)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
return d, wr, nil
|
|
}
|
|
|
|
const alphanum = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
|
|
|
|
var (
|
|
rngMu sync.Mutex
|
|
rng = rand.New(rand.NewSource(time.Now().UnixNano() ^ int64(os.Getpid())))
|
|
)
|
|
|
|
func uniqueID() string {
|
|
var b [20]byte
|
|
rngMu.Lock()
|
|
for i := 0; i < len(b); i++ {
|
|
b[i] = alphanum[rng.Intn(len(alphanum))]
|
|
}
|
|
rngMu.Unlock()
|
|
return string(b[:])
|
|
}
|