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Use vendored go-swagger (#8087)
* Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net>
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Lauris BH
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165
vendor/go.mongodb.org/mongo-driver/bson/primitive/objectid.go
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vendored
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165
vendor/go.mongodb.org/mongo-driver/bson/primitive/objectid.go
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vendored
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// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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//
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// Based on gopkg.in/mgo.v2/bson by Gustavo Niemeyer
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// See THIRD-PARTY-NOTICES for original license terms.
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package primitive
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import (
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"bytes"
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"crypto/rand"
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"encoding/binary"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"sync/atomic"
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"time"
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)
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// ErrInvalidHex indicates that a hex string cannot be converted to an ObjectID.
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var ErrInvalidHex = errors.New("the provided hex string is not a valid ObjectID")
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// ObjectID is the BSON ObjectID type.
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type ObjectID [12]byte
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// NilObjectID is the zero value for ObjectID.
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var NilObjectID ObjectID
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var objectIDCounter = readRandomUint32()
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var processUnique = processUniqueBytes()
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// NewObjectID generates a new ObjectID.
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func NewObjectID() ObjectID {
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return NewObjectIDFromTimestamp(time.Now())
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}
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// NewObjectIDFromTimestamp generates a new ObjectID based on the given time.
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func NewObjectIDFromTimestamp(timestamp time.Time) ObjectID {
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var b [12]byte
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binary.BigEndian.PutUint32(b[0:4], uint32(timestamp.Unix()))
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copy(b[4:9], processUnique[:])
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putUint24(b[9:12], atomic.AddUint32(&objectIDCounter, 1))
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return b
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}
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// Timestamp extracts the time part of the ObjectId.
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func (id ObjectID) Timestamp() time.Time {
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unixSecs := binary.BigEndian.Uint32(id[0:4])
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return time.Unix(int64(unixSecs), 0).UTC()
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}
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// Hex returns the hex encoding of the ObjectID as a string.
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func (id ObjectID) Hex() string {
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return hex.EncodeToString(id[:])
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}
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func (id ObjectID) String() string {
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return fmt.Sprintf("ObjectID(%q)", id.Hex())
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}
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// IsZero returns true if id is the empty ObjectID.
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func (id ObjectID) IsZero() bool {
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return bytes.Equal(id[:], NilObjectID[:])
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}
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// ObjectIDFromHex creates a new ObjectID from a hex string. It returns an error if the hex string is not a
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// valid ObjectID.
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func ObjectIDFromHex(s string) (ObjectID, error) {
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b, err := hex.DecodeString(s)
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if err != nil {
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return NilObjectID, err
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}
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if len(b) != 12 {
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return NilObjectID, ErrInvalidHex
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}
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var oid [12]byte
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copy(oid[:], b[:])
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return oid, nil
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}
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// MarshalJSON returns the ObjectID as a string
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func (id ObjectID) MarshalJSON() ([]byte, error) {
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return json.Marshal(id.Hex())
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}
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// UnmarshalJSON populates the byte slice with the ObjectID. If the byte slice is 64 bytes long, it
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// will be populated with the hex representation of the ObjectID. If the byte slice is twelve bytes
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// long, it will be populated with the BSON representation of the ObjectID. Otherwise, it will
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// return an error.
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func (id *ObjectID) UnmarshalJSON(b []byte) error {
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var err error
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switch len(b) {
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case 12:
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copy(id[:], b)
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default:
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// Extended JSON
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var res interface{}
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err := json.Unmarshal(b, &res)
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if err != nil {
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return err
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}
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str, ok := res.(string)
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if !ok {
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m, ok := res.(map[string]interface{})
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if !ok {
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return errors.New("not an extended JSON ObjectID")
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}
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oid, ok := m["$oid"]
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if !ok {
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return errors.New("not an extended JSON ObjectID")
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}
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str, ok = oid.(string)
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if !ok {
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return errors.New("not an extended JSON ObjectID")
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}
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}
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if len(str) != 24 {
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return fmt.Errorf("cannot unmarshal into an ObjectID, the length must be 12 but it is %d", len(str))
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}
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_, err = hex.Decode(id[:], []byte(str))
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if err != nil {
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return err
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}
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}
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return err
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}
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func processUniqueBytes() [5]byte {
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var b [5]byte
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_, err := io.ReadFull(rand.Reader, b[:])
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if err != nil {
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panic(fmt.Errorf("cannot initialize objectid package with crypto.rand.Reader: %v", err))
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}
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return b
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}
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func readRandomUint32() uint32 {
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var b [4]byte
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_, err := io.ReadFull(rand.Reader, b[:])
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if err != nil {
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panic(fmt.Errorf("cannot initialize objectid package with crypto.rand.Reader: %v", err))
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}
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return (uint32(b[0]) << 0) | (uint32(b[1]) << 8) | (uint32(b[2]) << 16) | (uint32(b[3]) << 24)
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}
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func putUint24(b []byte, v uint32) {
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b[0] = byte(v >> 16)
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b[1] = byte(v >> 8)
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b[2] = byte(v)
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}
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