Delete vendor directory

12 files changed, 0 insertions, 658 deletions

diff --git a/vendor/github.com/rs/xid/.appveyor.yml b/vendor/github.com/rs/xid/.appveyor.yml
deleted file mode 100644
index c73bb33..0000000
--- a/vendor/github.com/rs/xid/.appveyor.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-version: 1.0.0.{build}
-
-platform: x64
-
-branches:
-  only:
-    - master
-
-clone_folder: c:\gopath\src\github.com\rs\xid
-
-environment:
-  GOPATH: c:\gopath
-
-install:
-  - echo %PATH%
-  - echo %GOPATH%
-  - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
-  - go version
-  - go env
-  - go get -t .
-
-build_script:
-  - go build
-
-test_script:
-  - go test
-
diff --git a/vendor/github.com/rs/xid/.golangci.yml b/vendor/github.com/rs/xid/.golangci.yml
deleted file mode 100644
index 7929600..0000000
--- a/vendor/github.com/rs/xid/.golangci.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-run:
-  tests: false
-
-output:
-  sort-results: true
diff --git a/vendor/github.com/rs/xid/.travis.yml b/vendor/github.com/rs/xid/.travis.yml
deleted file mode 100644
index b37da15..0000000
--- a/vendor/github.com/rs/xid/.travis.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-language: go
-go:
-- "1.9"
-- "1.10"
-- "master"
-matrix:
-  allow_failures:
-      - go: "master"
diff --git a/vendor/github.com/rs/xid/LICENSE b/vendor/github.com/rs/xid/LICENSE
deleted file mode 100644
index 47c5e9d..0000000
--- a/vendor/github.com/rs/xid/LICENSE
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2015 Olivier Poitrey <[email protected]>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is furnished
-to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
diff --git a/vendor/github.com/rs/xid/README.md b/vendor/github.com/rs/xid/README.md
deleted file mode 100644
index 974e67d..0000000
--- a/vendor/github.com/rs/xid/README.md
+++ /dev/null
@@ -1,119 +0,0 @@
-# Globally Unique ID Generator
-
-[![godoc](http://img.shields.io/badge/godoc-reference-blue.svg?style=flat)](https://godoc.org/github.com/rs/xid) [![license](http://img.shields.io/badge/license-MIT-red.svg?style=flat)](https://raw.githubusercontent.com/rs/xid/master/LICENSE) [![Build Status](https://travis-ci.org/rs/xid.svg?branch=master)](https://travis-ci.org/rs/xid) [![Coverage](http://gocover.io/_badge/github.com/rs/xid)](http://gocover.io/github.com/rs/xid)
-
-Package xid is a globally unique id generator library, ready to safely be used directly in your server code.
-
-Xid uses the Mongo Object ID algorithm to generate globally unique ids with a different serialization (base64) to make it shorter when transported as a string:
-https://docs.mongodb.org/manual/reference/object-id/
-
-- 4-byte value representing the seconds since the Unix epoch,
-- 3-byte machine identifier,
-- 2-byte process id, and
-- 3-byte counter, starting with a random value.
-
-The binary representation of the id is compatible with Mongo 12 bytes Object IDs.
-The string representation is using base32 hex (w/o padding) for better space efficiency
-when stored in that form (20 bytes). The hex variant of base32 is used to retain the
-sortable property of the id.
-
-Xid doesn't use base64 because case sensitivity and the 2 non alphanum chars may be an
-issue when transported as a string between various systems. Base36 wasn't retained either
-because 1/ it's not standard 2/ the resulting size is not predictable (not bit aligned)
-and 3/ it would not remain sortable. To validate a base32 `xid`, expect a 20 chars long,
-all lowercase sequence of `a` to `v` letters and `0` to `9` numbers (`[0-9a-v]{20}`).
-
-UUIDs are 16 bytes (128 bits) and 36 chars as string representation. Twitter Snowflake
-ids are 8 bytes (64 bits) but require machine/data-center configuration and/or central
-generator servers. xid stands in between with 12 bytes (96 bits) and a more compact
-URL-safe string representation (20 chars). No configuration or central generator server
-is required so it can be used directly in server's code.
-
-| Name        | Binary Size | String Size    | Features
-|-------------|-------------|----------------|----------------
-| [UUID]      | 16 bytes    | 36 chars       | configuration free, not sortable
-| [shortuuid] | 16 bytes    | 22 chars       | configuration free, not sortable
-| [Snowflake] | 8 bytes     | up to 20 chars | needs machine/DC configuration, needs central server, sortable
-| [MongoID]   | 12 bytes    | 24 chars       | configuration free, sortable
-| xid         | 12 bytes    | 20 chars       | configuration free, sortable
-
-[UUID]: https://en.wikipedia.org/wiki/Universally_unique_identifier
-[shortuuid]: https://github.com/stochastic-technologies/shortuuid
-[Snowflake]: https://blog.twitter.com/2010/announcing-snowflake
-[MongoID]: https://docs.mongodb.org/manual/reference/object-id/
-
-Features:
-
-- Size: 12 bytes (96 bits), smaller than UUID, larger than snowflake
-- Base32 hex encoded by default (20 chars when transported as printable string, still sortable)
-- Non configured, you don't need set a unique machine and/or data center id
-- K-ordered
-- Embedded time with 1 second precision
-- Unicity guaranteed for 16,777,216 (24 bits) unique ids per second and per host/process
-- Lock-free (i.e.: unlike UUIDv1 and v2)
-
-Best used with [zerolog](https://github.com/rs/zerolog)'s
-[RequestIDHandler](https://godoc.org/github.com/rs/zerolog/hlog#RequestIDHandler).
-
-Notes:
-
-- Xid is dependent on the system time, a monotonic counter and so is not cryptographically secure. If unpredictability of IDs is important, you should not use Xids. It is worth noting that most other UUID-like implementations are also not cryptographically secure. You should use libraries that rely on cryptographically secure sources (like /dev/urandom on unix, crypto/rand in golang), if you want a truly random ID generator.
-
-References:
-
-- http://www.slideshare.net/davegardnerisme/unique-id-generation-in-distributed-systems
-- https://en.wikipedia.org/wiki/Universally_unique_identifier
-- https://blog.twitter.com/2010/announcing-snowflake
-- Python port by [Graham Abbott](https://github.com/graham): https://github.com/graham/python_xid
-- Scala port by [Egor Kolotaev](https://github.com/kolotaev): https://github.com/kolotaev/ride
-- Rust port by [Jérôme Renard](https://github.com/jeromer/): https://github.com/jeromer/libxid
-- Ruby port by [Valar](https://github.com/valarpirai/): https://github.com/valarpirai/ruby_xid
-- Java port by [0xShamil](https://github.com/0xShamil/): https://github.com/0xShamil/java-xid
-- Dart port by [Peter Bwire](https://github.com/pitabwire): https://pub.dev/packages/xid
-- PostgreSQL port by [Rasmus Holm](https://github.com/crholm): https://github.com/modfin/pg-xid
-- Swift port by [Uditha Atukorala](https://github.com/uditha-atukorala): https://github.com/uditha-atukorala/swift-xid
-- C++ port by [Uditha Atukorala](https://github.com/uditha-atukorala): https://github.com/uditha-atukorala/libxid
-
-## Install
-
-    go get github.com/rs/xid
-
-## Usage
-
-```go
-guid := xid.New()
-
-println(guid.String())
-// Output: 9m4e2mr0ui3e8a215n4g
-```
-
-Get `xid` embedded info:
-
-```go
-guid.Machine()
-guid.Pid()
-guid.Time()
-guid.Counter()
-```
-
-## Benchmark
-
-Benchmark against Go [Maxim Bublis](https://github.com/satori)'s [UUID](https://github.com/satori/go.uuid).
-
-```
-BenchmarkXID            20000000                91.1 ns/op            32 B/op          1 allocs/op
-BenchmarkXID-2          20000000                55.9 ns/op            32 B/op          1 allocs/op
-BenchmarkXID-4          50000000                32.3 ns/op            32 B/op          1 allocs/op
-BenchmarkUUIDv1         10000000               204 ns/op              48 B/op          1 allocs/op
-BenchmarkUUIDv1-2       10000000               160 ns/op              48 B/op          1 allocs/op
-BenchmarkUUIDv1-4       10000000               195 ns/op              48 B/op          1 allocs/op
-BenchmarkUUIDv4          1000000              1503 ns/op              64 B/op          2 allocs/op
-BenchmarkUUIDv4-2        1000000              1427 ns/op              64 B/op          2 allocs/op
-BenchmarkUUIDv4-4        1000000              1452 ns/op              64 B/op          2 allocs/op
-```
-
-Note: UUIDv1 requires a global lock, hence the performance degradation as we add more CPUs.
-
-## Licenses
-
-All source code is licensed under the [MIT License](https://raw.github.com/rs/xid/master/LICENSE).
diff --git a/vendor/github.com/rs/xid/error.go b/vendor/github.com/rs/xid/error.go
deleted file mode 100644
index ea25374..0000000
--- a/vendor/github.com/rs/xid/error.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package xid
-
-const (
-        // ErrInvalidID is returned when trying to unmarshal an invalid ID.
-        ErrInvalidID strErr = "xid: invalid ID"
-)
-
-// strErr allows declaring errors as constants.
-type strErr string
-
-func (err strErr) Error() string { return string(err) }
diff --git a/vendor/github.com/rs/xid/hostid_darwin.go b/vendor/github.com/rs/xid/hostid_darwin.go
deleted file mode 100644
index 08351ff..0000000
--- a/vendor/github.com/rs/xid/hostid_darwin.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// +build darwin
-
-package xid
-
-import "syscall"
-
-func readPlatformMachineID() (string, error) {
-        return syscall.Sysctl("kern.uuid")
-}
diff --git a/vendor/github.com/rs/xid/hostid_fallback.go b/vendor/github.com/rs/xid/hostid_fallback.go
deleted file mode 100644
index 7fbd3c0..0000000
--- a/vendor/github.com/rs/xid/hostid_fallback.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// +build !darwin,!linux,!freebsd,!windows
-
-package xid
-
-import "errors"
-
-func readPlatformMachineID() (string, error) {
-        return "", errors.New("not implemented")
-}
diff --git a/vendor/github.com/rs/xid/hostid_freebsd.go b/vendor/github.com/rs/xid/hostid_freebsd.go
deleted file mode 100644
index be25a03..0000000
--- a/vendor/github.com/rs/xid/hostid_freebsd.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// +build freebsd
-
-package xid
-
-import "syscall"
-
-func readPlatformMachineID() (string, error) {
-        return syscall.Sysctl("kern.hostuuid")
-}
diff --git a/vendor/github.com/rs/xid/hostid_linux.go b/vendor/github.com/rs/xid/hostid_linux.go
deleted file mode 100644
index 837b204..0000000
--- a/vendor/github.com/rs/xid/hostid_linux.go
+++ /dev/null
@@ -1,13 +0,0 @@
-// +build linux
-
-package xid
-
-import "io/ioutil"
-
-func readPlatformMachineID() (string, error) {
-        b, err := ioutil.ReadFile("/etc/machine-id")
-        if err != nil || len(b) == 0 {
-                b, err = ioutil.ReadFile("/sys/class/dmi/id/product_uuid")
-        }
-        return string(b), err
-}
diff --git a/vendor/github.com/rs/xid/hostid_windows.go b/vendor/github.com/rs/xid/hostid_windows.go
deleted file mode 100644
index ec2593e..0000000
--- a/vendor/github.com/rs/xid/hostid_windows.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// +build windows
-
-package xid
-
-import (
-        "fmt"
-        "syscall"
-        "unsafe"
-)
-
-func readPlatformMachineID() (string, error) {
-        // source: https://github.com/shirou/gopsutil/blob/master/host/host_syscall.go
-        var h syscall.Handle
-        err := syscall.RegOpenKeyEx(syscall.HKEY_LOCAL_MACHINE, syscall.StringToUTF16Ptr(`SOFTWARE\Microsoft\Cryptography`), 0, syscall.KEY_READ|syscall.KEY_WOW64_64KEY, &h)
-        if err != nil {
-                return "", err
-        }
-        defer syscall.RegCloseKey(h)
-
-        const syscallRegBufLen = 74 // len(`{`) + len(`abcdefgh-1234-456789012-123345456671` * 2) + len(`}`) // 2 == bytes/UTF16
-        const uuidLen = 36
-
-        var regBuf [syscallRegBufLen]uint16
-        bufLen := uint32(syscallRegBufLen)
-        var valType uint32
-        err = syscall.RegQueryValueEx(h, syscall.StringToUTF16Ptr(`MachineGuid`), nil, &valType, (*byte)(unsafe.Pointer(&regBuf[0])), &bufLen)
-        if err != nil {
-                return "", err
-        }
-
-        hostID := syscall.UTF16ToString(regBuf[:])
-        hostIDLen := len(hostID)
-        if hostIDLen != uuidLen {
-                return "", fmt.Errorf("HostID incorrect: %q\n", hostID)
-        }
-
-        return hostID, nil
-}
diff --git a/vendor/github.com/rs/xid/id.go b/vendor/github.com/rs/xid/id.go
deleted file mode 100644
index fcd7a04..0000000
--- a/vendor/github.com/rs/xid/id.go
+++ /dev/null
@@ -1,391 +0,0 @@
-// Package xid is a globally unique id generator suited for web scale
-//
-// Xid is using Mongo Object ID algorithm to generate globally unique ids:
-// https://docs.mongodb.org/manual/reference/object-id/
-//
-//   - 4-byte value representing the seconds since the Unix epoch,
-//   - 3-byte machine identifier,
-//   - 2-byte process id, and
-//   - 3-byte counter, starting with a random value.
-//
-// The binary representation of the id is compatible with Mongo 12 bytes Object IDs.
-// The string representation is using base32 hex (w/o padding) for better space efficiency
-// when stored in that form (20 bytes). The hex variant of base32 is used to retain the
-// sortable property of the id.
-//
-// Xid doesn't use base64 because case sensitivity and the 2 non alphanum chars may be an
-// issue when transported as a string between various systems. Base36 wasn't retained either
-// because 1/ it's not standard 2/ the resulting size is not predictable (not bit aligned)
-// and 3/ it would not remain sortable. To validate a base32 `xid`, expect a 20 chars long,
-// all lowercase sequence of `a` to `v` letters and `0` to `9` numbers (`[0-9a-v]{20}`).
-//
-// UUID is 16 bytes (128 bits), snowflake is 8 bytes (64 bits), xid stands in between
-// with 12 bytes with a more compact string representation ready for the web and no
-// required configuration or central generation server.
-//
-// Features:
-//
-//   - Size: 12 bytes (96 bits), smaller than UUID, larger than snowflake
-//   - Base32 hex encoded by default (16 bytes storage when transported as printable string)
-//   - Non configured, you don't need set a unique machine and/or data center id
-//   - K-ordered
-//   - Embedded time with 1 second precision
-//   - Unicity guaranteed for 16,777,216 (24 bits) unique ids per second and per host/process
-//
-// Best used with xlog's RequestIDHandler (https://godoc.org/github.com/rs/xlog#RequestIDHandler).
-//
-// References:
-//
-//   - http://www.slideshare.net/davegardnerisme/unique-id-generation-in-distributed-systems
-//   - https://en.wikipedia.org/wiki/Universally_unique_identifier
-//   - https://blog.twitter.com/2010/announcing-snowflake
-package xid
-
-import (
-        "bytes"
-        "crypto/sha256"
-        "crypto/rand"
-        "database/sql/driver"
-        "encoding/binary"
-        "fmt"
-        "hash/crc32"
-        "io/ioutil"
-        "os"
-        "sort"
-        "sync/atomic"
-        "time"
-        "unsafe"
-)
-
-// Code inspired from mgo/bson ObjectId
-
-// ID represents a unique request id
-type ID [rawLen]byte
-
-const (
-        encodedLen = 20 // string encoded len
-        rawLen     = 12 // binary raw len
-
-        // encoding stores a custom version of the base32 encoding with lower case
-        // letters.
-        encoding = "0123456789abcdefghijklmnopqrstuv"
-)
-
-var (
-        // objectIDCounter is atomically incremented when generating a new ObjectId. It's
-        // used as the counter part of an id. This id is initialized with a random value.
-        objectIDCounter = randInt()
-
-        // machineID is generated once and used in subsequent calls to the New* functions.
-        machineID = readMachineID()
-
-        // pid stores the current process id
-        pid = os.Getpid()
-
-        nilID ID
-
-        // dec is the decoding map for base32 encoding
-        dec [256]byte
-)
-
-func init() {
-        for i := 0; i < len(dec); i++ {
-                dec[i] = 0xFF
-        }
-        for i := 0; i < len(encoding); i++ {
-                dec[encoding[i]] = byte(i)
-        }
-
-        // If /proc/self/cpuset exists and is not /, we can assume that we are in a
-        // form of container and use the content of cpuset xor-ed with the PID in
-        // order get a reasonable machine global unique PID.
-        b, err := ioutil.ReadFile("/proc/self/cpuset")
-        if err == nil && len(b) > 1 {
-                pid ^= int(crc32.ChecksumIEEE(b))
-        }
-}
-
-// readMachineID generates a machine ID, derived from a platform-specific machine ID
-// value, or else the machine's hostname, or else a randomly-generated number.
-// It panics if all of these methods fail.
-func readMachineID() []byte {
-        id := make([]byte, 3)
-        hid, err := readPlatformMachineID()
-        if err != nil || len(hid) == 0 {
-                hid, err = os.Hostname()
-        }
-        if err == nil && len(hid) != 0 {
-                hw := sha256.New()
-                hw.Write([]byte(hid))
-                copy(id, hw.Sum(nil))
-        } else {
-                // Fallback to rand number if machine id can't be gathered
-                if _, randErr := rand.Reader.Read(id); randErr != nil {
-                        panic(fmt.Errorf("xid: cannot get hostname nor generate a random number: %v; %v", err, randErr))
-                }
-        }
-        return id
-}
-
-// randInt generates a random uint32
-func randInt() uint32 {
-        b := make([]byte, 3)
-        if _, err := rand.Reader.Read(b); err != nil {
-                panic(fmt.Errorf("xid: cannot generate random number: %v;", err))
-        }
-        return uint32(b[0])<<16 | uint32(b[1])<<8 | uint32(b[2])
-}
-
-// New generates a globally unique ID
-func New() ID {
-        return NewWithTime(time.Now())
-}
-
-// NewWithTime generates a globally unique ID with the passed in time
-func NewWithTime(t time.Time) ID {
-        var id ID
-        // Timestamp, 4 bytes, big endian
-        binary.BigEndian.PutUint32(id[:], uint32(t.Unix()))
-        // Machine ID, 3 bytes
-        id[4] = machineID[0]
-        id[5] = machineID[1]
-        id[6] = machineID[2]
-        // Pid, 2 bytes, specs don't specify endianness, but we use big endian.
-        id[7] = byte(pid >> 8)
-        id[8] = byte(pid)
-        // Increment, 3 bytes, big endian
-        i := atomic.AddUint32(&objectIDCounter, 1)
-        id[9] = byte(i >> 16)
-        id[10] = byte(i >> 8)
-        id[11] = byte(i)
-        return id
-}
-
-// FromString reads an ID from its string representation
-func FromString(id string) (ID, error) {
-        i := &ID{}
-        err := i.UnmarshalText([]byte(id))
-        return *i, err
-}
-
-// String returns a base32 hex lowercased with no padding representation of the id (char set is 0-9, a-v).
-func (id ID) String() string {
-        text := make([]byte, encodedLen)
-        encode(text, id[:])
-        return *(*string)(unsafe.Pointer(&text))
-}
-
-// Encode encodes the id using base32 encoding, writing 20 bytes to dst and return it.
-func (id ID) Encode(dst []byte) []byte {
-        encode(dst, id[:])
-        return dst
-}
-
-// MarshalText implements encoding/text TextMarshaler interface
-func (id ID) MarshalText() ([]byte, error) {
-        text := make([]byte, encodedLen)
-        encode(text, id[:])
-        return text, nil
-}
-
-// MarshalJSON implements encoding/json Marshaler interface
-func (id ID) MarshalJSON() ([]byte, error) {
-        if id.IsNil() {
-                return []byte("null"), nil
-        }
-        text := make([]byte, encodedLen+2)
-        encode(text[1:encodedLen+1], id[:])
-        text[0], text[encodedLen+1] = '"', '"'
-        return text, nil
-}
-
-// encode by unrolling the stdlib base32 algorithm + removing all safe checks
-func encode(dst, id []byte) {
-        _ = dst[19]
-        _ = id[11]
-
-        dst[19] = encoding[(id[11]<<4)&0x1F]
-        dst[18] = encoding[(id[11]>>1)&0x1F]
-        dst[17] = encoding[(id[11]>>6)&0x1F|(id[10]<<2)&0x1F]
-        dst[16] = encoding[id[10]>>3]
-        dst[15] = encoding[id[9]&0x1F]
-        dst[14] = encoding[(id[9]>>5)|(id[8]<<3)&0x1F]
-        dst[13] = encoding[(id[8]>>2)&0x1F]
-        dst[12] = encoding[id[8]>>7|(id[7]<<1)&0x1F]
-        dst[11] = encoding[(id[7]>>4)&0x1F|(id[6]<<4)&0x1F]
-        dst[10] = encoding[(id[6]>>1)&0x1F]
-        dst[9] = encoding[(id[6]>>6)&0x1F|(id[5]<<2)&0x1F]
-        dst[8] = encoding[id[5]>>3]
-        dst[7] = encoding[id[4]&0x1F]
-        dst[6] = encoding[id[4]>>5|(id[3]<<3)&0x1F]
-        dst[5] = encoding[(id[3]>>2)&0x1F]
-        dst[4] = encoding[id[3]>>7|(id[2]<<1)&0x1F]
-        dst[3] = encoding[(id[2]>>4)&0x1F|(id[1]<<4)&0x1F]
-        dst[2] = encoding[(id[1]>>1)&0x1F]
-        dst[1] = encoding[(id[1]>>6)&0x1F|(id[0]<<2)&0x1F]
-        dst[0] = encoding[id[0]>>3]
-}
-
-// UnmarshalText implements encoding/text TextUnmarshaler interface
-func (id *ID) UnmarshalText(text []byte) error {
-        if len(text) != encodedLen {
-                return ErrInvalidID
-        }
-        for _, c := range text {
-                if dec[c] == 0xFF {
-                        return ErrInvalidID
-                }
-        }
-        if !decode(id, text) {
-                *id = nilID
-                return ErrInvalidID
-        }
-        return nil
-}
-
-// UnmarshalJSON implements encoding/json Unmarshaler interface
-func (id *ID) UnmarshalJSON(b []byte) error {
-        s := string(b)
-        if s == "null" {
-                *id = nilID
-                return nil
-        }
-        // Check the slice length to prevent panic on passing it to UnmarshalText()
-        if len(b) < 2 {
-                return ErrInvalidID
-        }
-        return id.UnmarshalText(b[1 : len(b)-1])
-}
-
-// decode by unrolling the stdlib base32 algorithm + customized safe check.
-func decode(id *ID, src []byte) bool {
-        _ = src[19]
-        _ = id[11]
-
-        id[11] = dec[src[17]]<<6 | dec[src[18]]<<1 | dec[src[19]]>>4
-        // check the last byte
-        if encoding[(id[11]<<4)&0x1F] != src[19] {
-                return false
-        }
-        id[10] = dec[src[16]]<<3 | dec[src[17]]>>2
-        id[9] = dec[src[14]]<<5 | dec[src[15]]
-        id[8] = dec[src[12]]<<7 | dec[src[13]]<<2 | dec[src[14]]>>3
-        id[7] = dec[src[11]]<<4 | dec[src[12]]>>1
-        id[6] = dec[src[9]]<<6 | dec[src[10]]<<1 | dec[src[11]]>>4
-        id[5] = dec[src[8]]<<3 | dec[src[9]]>>2
-        id[4] = dec[src[6]]<<5 | dec[src[7]]
-        id[3] = dec[src[4]]<<7 | dec[src[5]]<<2 | dec[src[6]]>>3
-        id[2] = dec[src[3]]<<4 | dec[src[4]]>>1
-        id[1] = dec[src[1]]<<6 | dec[src[2]]<<1 | dec[src[3]]>>4
-        id[0] = dec[src[0]]<<3 | dec[src[1]]>>2
-        return true
-}
-
-// Time returns the timestamp part of the id.
-// It's a runtime error to call this method with an invalid id.
-func (id ID) Time() time.Time {
-        // First 4 bytes of ObjectId is 32-bit big-endian seconds from epoch.
-        secs := int64(binary.BigEndian.Uint32(id[0:4]))
-        return time.Unix(secs, 0)
-}
-
-// Machine returns the 3-byte machine id part of the id.
-// It's a runtime error to call this method with an invalid id.
-func (id ID) Machine() []byte {
-        return id[4:7]
-}
-
-// Pid returns the process id part of the id.
-// It's a runtime error to call this method with an invalid id.
-func (id ID) Pid() uint16 {
-        return binary.BigEndian.Uint16(id[7:9])
-}
-
-// Counter returns the incrementing value part of the id.
-// It's a runtime error to call this method with an invalid id.
-func (id ID) Counter() int32 {
-        b := id[9:12]
-        // Counter is stored as big-endian 3-byte value
-        return int32(uint32(b[0])<<16 | uint32(b[1])<<8 | uint32(b[2]))
-}
-
-// Value implements the driver.Valuer interface.
-func (id ID) Value() (driver.Value, error) {
-        if id.IsNil() {
-                return nil, nil
-        }
-        b, err := id.MarshalText()
-        return string(b), err
-}
-
-// Scan implements the sql.Scanner interface.
-func (id *ID) Scan(value interface{}) (err error) {
-        switch val := value.(type) {
-        case string:
-                return id.UnmarshalText([]byte(val))
-        case []byte:
-                return id.UnmarshalText(val)
-        case nil:
-                *id = nilID
-                return nil
-        default:
-                return fmt.Errorf("xid: scanning unsupported type: %T", value)
-        }
-}
-
-// IsNil Returns true if this is a "nil" ID
-func (id ID) IsNil() bool {
-        return id == nilID
-}
-
-// Alias of IsNil
-func (id ID) IsZero() bool {
-        return id.IsNil()
-}
-
-// NilID returns a zero value for `xid.ID`.
-func NilID() ID {
-        return nilID
-}
-
-// Bytes returns the byte array representation of `ID`
-func (id ID) Bytes() []byte {
-        return id[:]
-}
-
-// FromBytes convert the byte array representation of `ID` back to `ID`
-func FromBytes(b []byte) (ID, error) {
-        var id ID
-        if len(b) != rawLen {
-                return id, ErrInvalidID
-        }
-        copy(id[:], b)
-        return id, nil
-}
-
-// Compare returns an integer comparing two IDs. It behaves just like `bytes.Compare`.
-// The result will be 0 if two IDs are identical, -1 if current id is less than the other one,
-// and 1 if current id is greater than the other.
-func (id ID) Compare(other ID) int {
-        return bytes.Compare(id[:], other[:])
-}
-
-type sorter []ID
-
-func (s sorter) Len() int {
-        return len(s)
-}
-
-func (s sorter) Less(i, j int) bool {
-        return s[i].Compare(s[j]) < 0
-}
-
-func (s sorter) Swap(i, j int) {
-        s[i], s[j] = s[j], s[i]
-}
-
-// Sort sorts an array of IDs inplace.
-// It works by wrapping `[]ID` and use `sort.Sort`.
-func Sort(ids []ID) {
-        sort.Sort(sorter(ids))
-}