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This commit is contained in:
Eric Chiang
2016-10-03 12:48:25 -07:00
committed by Eric Chiang
parent b4dab455f8
commit 0f577a469a
118 changed files with 235913 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
glide.lock
Generated
+16 -4
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@@ -1,8 +1,14 @@
hash: 2af4a276277d2ab2ba9de9b0fd67ab7d6b70c07f4171a9efb225f30306d6f3eb
updated: 2016-08-08T11:20:44.300140564-07:00
hash: 149c717bc83cc279ab6192364776b8c1b6bad8a620ce9d64c56d946276630437
updated: 2016-09-30T21:01:57.607704513-07:00
imports:
- name: github.com/cockroachdb/cockroach-go
version: 31611c0501c812f437d4861d87d117053967c955
subpackages:
- crdb
- name: github.com/ericchiang/oidc
version: 1907f0e61549f9081f26bdf269f11603496c9dee
- name: github.com/go-sql-driver/mysql
version: 0b58b37b664c21f3010e836f1b931e1d0b0b0685
- name: github.com/golang/protobuf
version: 874264fbbb43f4d91e999fecb4b40143ed611400
subpackages:
@@ -21,6 +27,12 @@ imports:
subpackages:
- diff
- pretty
- name: github.com/lib/pq
version: 50761b0867bd1d9d069276790bcd4a3bccf2324a
subpackages:
- oid
- name: github.com/mattn/go-sqlite3
version: 3fb7a0e792edd47bf0cf1e919dfc14e2be412e15
- name: github.com/mitchellh/go-homedir
version: 756f7b183b7ab78acdbbee5c7f392838ed459dda
- name: github.com/pquerna/cachecontrol
@@ -48,13 +60,13 @@ imports:
- name: google.golang.org/appengine
version: 267c27e7492265b84fc6719503b14a1e17975d79
subpackages:
- urlfetch
- internal
- internal/urlfetch
- internal/base
- internal/datastore
- internal/log
- internal/remote_api
- internal/urlfetch
- urlfetch
- name: gopkg.in/asn1-ber.v1
version: 4e86f4367175e39f69d9358a5f17b4dda270378d
- name: gopkg.in/ldap.v2
vendor/github.com/cockroachdb/cockroach-go/.gitignore
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*~
.#*
*.test
vendor/github.com/cockroachdb/cockroach-go/LICENSE
Generated Vendored
+202
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@@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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including but not limited to software source code, documentation
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
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the terms of any separate license agreement you may have executed
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7. Disclaimer of Warranty. Unless required by applicable law or
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defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
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To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
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Copyright {}
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
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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.
vendor/github.com/cockroachdb/cockroach-go/Makefile
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# Copyright 2016 The Cockroach Authors.
#
# 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. See the AUTHORS file
# for names of contributors.
#
# Author: Spencer Kimball (spencer.kimball@gmail.com)
#
# Cockroach build rules.
GO ?= go
# Allow setting of go build flags from the command line.
GOFLAGS :=
.PHONY: all
all: test check
.PHONY: test
test:
$(GO) test -v -i ./...
$(GO) test -v ./...
.PHONY: deps
deps:
$(GO) get -d -t ./...
.PHONY: check
check:
@echo "checking for \"path\" imports"
@! git grep -F '"path"' -- '*.go'
@echo "errcheck"
@errcheck ./...
@echo "vet"
@! go tool vet . 2>&1 | \
grep -vE '^vet: cannot process directory .git'
@echo "vet --shadow"
@! go tool vet --shadow . 2>&1 | \
grep -vE '(declaration of err shadows|^vet: cannot process directory \.git)'
@echo "golint"
@! golint ./... | grep -vE '(\.pb\.go)'
@echo "varcheck"
@varcheck -e ./...
@echo "gofmt (simplify)"
@! gofmt -s -d -l . 2>&1 | grep -vE '^\.git/'
@echo "goimports"
@! goimports -l . | grep -vF 'No Exceptions'
vendor/github.com/cockroachdb/cockroach-go/README.md
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# testing
Testing helpers for cockroach clients.
vendor/github.com/cockroachdb/cockroach-go/circle.yml
Generated Vendored
+18
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machine:
environment:
GOROOT: ${HOME}/go
PATH: ${PATH}:${HOME}/go/bin
post:
- sudo rm -rf /usr/local/go
- if [ ! -e go1.6.linux-amd64.tar.gz ]; then curl -O https://storage.googleapis.com/golang/go1.6.linux-amd64.tar.gz; fi
- tar -C ${HOME} -xzf go1.6.linux-amd64.tar.gz
dependencies:
override:
- make deps
cache_directories:
- ~/go1.6.linux-amd64.tar.gz
test:
override:
- make test
vendor/github.com/cockroachdb/cockroach-go/crdb/tx.go
Generated Vendored
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// Copyright 2016 The Cockroach Authors.
//
// 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.
//
// Author: Andrei Matei (andrei@cockroachlabs.com)
// Package crdb provides helpers for using CockroachDB in client
// applications.
package crdb
import (
"database/sql"
"github.com/lib/pq"
)
// AmbiguousCommitError represents an error that left a transaction in an
// ambiguous state: unclear if it committed or not.
type AmbiguousCommitError struct {
error
}
// ExecuteTx runs fn inside a transaction and retries it as needed.
// On non-retryable failures, the transaction is aborted and rolled
// back; on success, the transaction is committed.
// There are cases where the state of a transaction is inherently ambiguous: if
// we err on RELEASE with a communication error it's unclear if the transaction
// has been committed or not (similar to erroring on COMMIT in other databases).
// In that case, we return AmbiguousCommitError.
//
// For more information about CockroachDB's transaction model see
// https://cockroachlabs.com/docs/transactions.html.
//
// NOTE: the supplied exec closure should not have external side
// effects beyond changes to the database.
func ExecuteTx(db *sql.DB, fn func(*sql.Tx) error) (err error) {
// Start a transaction.
var tx *sql.Tx
tx, err = db.Begin()
if err != nil {
return err
}
defer func() {
if err == nil {
// Ignore commit errors. The tx has already been committed by RELEASE.
_ = tx.Commit()
} else {
// We always need to execute a Rollback() so sql.DB releases the
// connection.
_ = tx.Rollback()
}
}()
// Specify that we intend to retry this txn in case of CockroachDB retryable
// errors.
if _, err = tx.Exec("SAVEPOINT cockroach_restart"); err != nil {
return err
}
for {
released := false
err = fn(tx)
if err == nil {
// RELEASE acts like COMMIT in CockroachDB. We use it since it gives us an
// opportunity to react to retryable errors, whereas tx.Commit() doesn't.
released = true
if _, err = tx.Exec("RELEASE SAVEPOINT cockroach_restart"); err == nil {
return nil
}
}
// We got an error; let's see if it's a retryable one and, if so, restart. We look
// for either the standard PG errcode SerializationFailureError:40001 or the Cockroach extension
// errcode RetriableError:CR000. The Cockroach extension has been removed server-side, but support
// for it has been left here for now to maintain backwards compatibility.
pqErr, ok := err.(*pq.Error)
if retryable := ok && (pqErr.Code == "CR000" || pqErr.Code == "40001"); !retryable {
if released {
err = &AmbiguousCommitError{err}
}
return err
}
if _, err = tx.Exec("ROLLBACK TO SAVEPOINT cockroach_restart"); err != nil {
return err
}
}
}
vendor/github.com/cockroachdb/cockroach-go/crdb/tx_test.go
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// Copyright 2016 The Cockroach Authors.
//
// 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.
//
// Author: Spencer Kimball (spencer@cockroachlabs.com)
package crdb
import (
"database/sql"
"fmt"
"sync"
"testing"
"github.com/cockroachdb/cockroach-go/testserver"
)
// TestExecuteTx verifies transaction retry using the classic
// example of write skew in bank account balance transfers.
func TestExecuteTx(t *testing.T) {
db, stop := testserver.NewDBForTest(t)
defer stop()
initStmt := `
CREATE DATABASE d;
CREATE TABLE d.t (acct INT PRIMARY KEY, balance INT);
INSERT INTO d.t (acct, balance) VALUES (1, 100), (2, 100);
`
if _, err := db.Exec(initStmt); err != nil {
t.Fatal(err)
}
type queryI interface {
Query(string, ...interface{}) (*sql.Rows, error)
}
getBalances := func(q queryI) (bal1, bal2 int, err error) {
var rows *sql.Rows
rows, err = q.Query(`SELECT balance FROM d.t WHERE acct IN (1, 2);`)
if err != nil {
return
}
defer rows.Close()
balances := []*int{&bal1, &bal2}
i := 0
for ; rows.Next(); i += 1 {
if err = rows.Scan(balances[i]); err != nil {
return
}
}
if i != 2 {
err = fmt.Errorf("expected two balances; got %d", i)
return
}
return
}
runTxn := func(wg *sync.WaitGroup, iter *int) <-chan error {
errCh := make(chan error, 1)
go func() {
*iter = 0
errCh <- ExecuteTx(db, func(tx *sql.Tx) error {
*iter++
bal1, bal2, err := getBalances(tx)
if err != nil {
return err
}
// If this is the first iteration, wait for the other tx to also read.
if *iter == 1 {
wg.Done()
wg.Wait()
}
// Now, subtract from one account and give to the other.
if bal1 > bal2 {
if _, err := tx.Exec(`
UPDATE d.t SET balance=balance-100 WHERE acct=1;
UPDATE d.t SET balance=balance+100 WHERE acct=2;
`); err != nil {
return err
}
} else {
if _, err := tx.Exec(`
UPDATE d.t SET balance=balance+100 WHERE acct=1;
UPDATE d.t SET balance=balance-100 WHERE acct=2;
`); err != nil {
return err
}
}
return nil
})
}()
return errCh
}
var wg sync.WaitGroup
wg.Add(2)
var iters1, iters2 int
txn1Err := runTxn(&wg, &iters1)
txn2Err := runTxn(&wg, &iters2)
if err := <-txn1Err; err != nil {
t.Errorf("expected success in txn1; got %s", err)
}
if err := <-txn2Err; err != nil {
t.Errorf("expected success in txn2; got %s", err)
}
if iters1+iters2 <= 2 {
t.Errorf("expected at least one retry between the competing transactions; "+
"got txn1=%d, txn2=%d", iters1, iters2)
}
bal1, bal2, err := getBalances(db)
if err != nil || bal1 != 100 || bal2 != 100 {
t.Errorf("expected balances to be restored without error; "+
"got acct1=%d, acct2=%d: %s", bal1, bal2, err)
}
}
vendor/github.com/cockroachdb/cockroach-go/testserver/binaries.go
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package testserver
import (
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"path/filepath"
"runtime"
"strings"
"time"
)
const (
awsBaseURL = "https://s3.amazonaws.com/cockroach/cockroach"
latestSuffix = "LATEST"
localBinaryPath = "/var/tmp"
finishedFileMode = 0555
)
func binaryName() string {
return fmt.Sprintf("cockroach.%s-%s", runtime.GOOS, runtime.GOARCH)
}
func binaryNameWithSha(sha string) string {
return fmt.Sprintf("%s.%s", binaryName(), sha)
}
func binaryPath(sha string) string {
return filepath.Join(localBinaryPath, binaryNameWithSha(sha))
}
func latestMarkerURL() string {
return fmt.Sprintf("%s/%s.%s", awsBaseURL, binaryName(), latestSuffix)
}
func binaryURL(sha string) string {
return fmt.Sprintf("%s/%s.%s", awsBaseURL, binaryName(), sha)
}
func findLatestSha() (string, error) {
markerURL := latestMarkerURL()
marker, err := http.Get(markerURL)
if err != nil {
return "", fmt.Errorf("could not download %s: %s", markerURL)
}
if marker.StatusCode == 404 {
return "", fmt.Errorf("for 404 from GET %s: make sure OS and ARCH are supported",
markerURL)
} else if marker.StatusCode != 200 {
return "", fmt.Errorf("bad response got GET %s: %d (%s)",
markerURL, marker.StatusCode, marker.Status)
}
defer marker.Body.Close()
body, err := ioutil.ReadAll(marker.Body)
if err != nil {
return "", err
}
return strings.TrimSpace(string(body)), nil
}
func downloadFile(url, filePath string) error {
output, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0200)
if err != nil {
return fmt.Errorf("error creating %s: %s", filePath, "-", err)
}
defer output.Close()
log.Printf("downloading %s to %s, this may take some time", url, filePath)
response, err := http.Get(url)
if err != nil {
return fmt.Errorf("error downloading %s: %s", url, err)
}
defer response.Body.Close()
if response.StatusCode != 200 {
return fmt.Errorf("error downloading %s: %d (%s)", url, response.StatusCode, response.Status)
}
_, err = io.Copy(output, response.Body)
if err != nil {
return fmt.Errorf("problem downloading %s to %s: %s", url, filePath, err)
}
// Download was successful, add the rw bits.
return os.Chmod(filePath, finishedFileMode)
}
func downloadLatestBinary() (string, error) {
sha, err := findLatestSha()
if err != nil {
return "", err
}
localFile := binaryPath(sha)
for {
finfo, err := os.Stat(localFile)
if err != nil {
// File does not exist: download it.
break
}
// File already present: check mode.
if finfo.Mode().Perm() == finishedFileMode {
return localFile, nil
}
time.Sleep(time.Millisecond * 10)
}
err = downloadFile(binaryURL(sha), localFile)
if err != nil {
_ = os.Remove(localFile)
return "", err
}
return localFile, nil
}
vendor/github.com/cockroachdb/cockroach-go/testserver/testserver.go
Generated Vendored
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// Copyright 2016 The Cockroach Authors.
//
// 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.
//
// Author: Marc Berhault (marc@cockroachlabs.com)
// Package testserver provides helpers to run a cockroach binary within tests.
// It automatically downloads the latest cockroach binary for your platform
// (Linux-amd64 and Darwin-amd64 only for now), or attempts to run "cockroach"
// from your PATH.
//
// A normal invocation is (check err every time):
// ts, err := testserver.NewTestServer()
// err = ts.Start()
// defer ts.Stop()
// url := ts.PGURL()
//
// To use, run as follows:
// import "github.com/cockroachdb/cockroach-go/testserver"
// import "testing"
// import "time"
//
// func TestRunServer(t *testing.T) {
// ts, err := testserver.NewTestServer()
// if err != nil {
// t.Fatal(err)
// }
// err := ts.Start()
// if err != nil {
// t.Fatal(err)
// }
// defer ts.Stop()
//
// url := ts.PGURL()
// if url != nil {
// t.FatalF("url not found")
// }
// t.Logf("URL: %s", url.String())
//
// db, err := sql.Open("postgres", url.String())
// if err != nil {
// t.Fatal(err)
// }
// }
package testserver
import (
"database/sql"
"errors"
"fmt"
"io/ioutil"
"log"
"net/url"
"os"
"os/exec"
"os/user"
"path/filepath"
"regexp"
"strings"
"sync"
"syscall"
"testing"
"time"
)
var sqlURLRegexp = regexp.MustCompile("sql:\\s+(postgresql:.+)\n")
const (
stateNew = iota
stateRunning = iota
stateStopped = iota
stateFailed = iota
socketPort = 26257
socketFileBase = ".s.PGSQL"
)
// TestServer is a helper to run a real cockroach node.
type TestServer struct {
mu sync.RWMutex
state int
baseDir string
pgURL *url.URL
cmd *exec.Cmd
args []string
stdout string
stderr string
stdoutBuf logWriter
stderrBuf logWriter
}
// NewDBForTest creates a new CockroachDB TestServer instance and
// opens a SQL database connection to it. Returns a sql *DB instance a
// shutdown function. The caller is responsible for executing the
// returned shutdown function on exit.
func NewDBForTest(t *testing.T) (*sql.DB, func()) {
return NewDBForTestWithDatabase(t, "")
}
// NewDBForTestWithDatabase creates a new CockroachDB TestServer
// instance and opens a SQL database connection to it. If database is
// specified, the returned connection will explicitly connect to
// it. Returns a sql *DB instance a shutdown function. The caller is
// responsible for executing the returned shutdown function on exit.
func NewDBForTestWithDatabase(t *testing.T, database string) (*sql.DB, func()) {
ts, err := NewTestServer()
if err != nil {
t.Fatal(err)
}
err = ts.Start()
if err != nil {
t.Fatal(err)
}
url := ts.PGURL()
if url == nil {
t.Fatalf("url not found")
}
if len(database) > 0 {
url.Path = database
}
db, err := sql.Open("postgres", url.String())
if err != nil {
t.Fatal(err)
}
ts.WaitForInit(db)
return db, func() {
_ = db.Close()
ts.Stop()
}
}
// NewTestServer creates a new TestServer, but does not start it.
// The cockroach binary for your OS and ARCH is downloaded automatically.
// If the download fails, we attempt just call "cockroach", hoping it is
// found in your path.
func NewTestServer() (*TestServer, error) {
cockroachBinary, err := downloadLatestBinary()
if err == nil {
log.Printf("Using automatically-downloaded binary: %s", cockroachBinary)
} else {
log.Printf("Attempting to use cockroach binary from your PATH")
cockroachBinary = "cockroach"
}
// Force "/tmp/" so avoid OSX's really long temp directory names
// which get us over the socket filename length limit.
baseDir, err := ioutil.TempDir("/tmp", "cockroach-testserver")
if err != nil {
return nil, fmt.Errorf("could not create temp directory: %s", err)
}
logDir := filepath.Join(baseDir, "logs")
if err := os.MkdirAll(logDir, 0755); err != nil {
return nil, fmt.Errorf("could not create logs directory: %s: %s", logDir, err)
}
options := url.Values{
"host": []string{baseDir},
}
pgurl := &url.URL{
Scheme: "postgres",
User: url.User("root"),
Host: fmt.Sprintf(":%d", socketPort),
RawQuery: options.Encode(),
}
socketPath := filepath.Join(baseDir, fmt.Sprintf("%s.%d", socketFileBase, socketPort))
args := []string{
cockroachBinary,
"start",
"--logtostderr",
"--insecure",
"--port=0",
"--http-port=0",
"--socket=" + socketPath,
"--store=" + baseDir,
}
ts := &TestServer{
baseDir: baseDir,
pgURL: pgurl,
args: args,
stdout: filepath.Join(logDir, "cockroach.stdout"),
stderr: filepath.Join(logDir, "cockroach.stderr"),
}
return ts, nil
}
// Stdout returns the entire contents of the process' stdout.
func (ts *TestServer) Stdout() string {
return ts.stdoutBuf.String()
}
// Stderr returns the entire contents of the process' stderr.
func (ts *TestServer) Stderr() string {
return ts.stderrBuf.String()
}
// PGURL returns the postgres connection URL to reach the started
// cockroach node.
// It loops until the expected unix socket file exists.
// This does not timeout, relying instead on test timeouts.
func (ts *TestServer) PGURL() *url.URL {
socketPath := filepath.Join(ts.baseDir, fmt.Sprintf("%s.%d", socketFileBase, socketPort))
for {
if _, err := os.Stat(socketPath); err == nil {
return ts.pgURL
}
time.Sleep(time.Millisecond * 10)
}
return nil
}
// WaitForInit repeatedly looks up the list of databases until
// the "system" database exists. It ignores all errors as we are
// waiting for the process to start and complete initialization.
// This does not timeout, relying instead on test timeouts.
func (ts *TestServer) WaitForInit(db *sql.DB) {
for {
// We issue a query that fails both on connection errors and on the
// system database not existing.
if _, err := db.Query("SHOW DATABASES"); err == nil {
return
}
time.Sleep(time.Millisecond * 10)
}
}
// Start runs the process, returning an error on any problems,
// including being unable to start, but not unexpected failure.
// It should only be called once in the lifetime of a TestServer object.
func (ts *TestServer) Start() error {
ts.mu.Lock()
if ts.state != stateNew {
ts.mu.Unlock()
return errors.New("Start() can only be called once")
}
ts.state = stateRunning
ts.mu.Unlock()
ts.cmd = exec.Command(ts.args[0], ts.args[1:]...)
ts.cmd.Env = []string{"COCKROACH_MAX_OFFSET=1ns"}
if len(ts.stdout) > 0 {
wr, err := newFileLogWriter(ts.stdout)
if err != nil {
return fmt.Errorf("unable to open file %s: %s", ts.stdout, err)
}
ts.stdoutBuf = wr
}
ts.cmd.Stdout = ts.stdoutBuf
if len(ts.stderr) > 0 {
wr, err := newFileLogWriter(ts.stderr)
if err != nil {
return fmt.Errorf("unable to open file %s: %s", ts.stderr, err)
}
ts.stderrBuf = wr
}
ts.cmd.Stderr = ts.stderrBuf
for k, v := range defaultEnv() {
ts.cmd.Env = append(ts.cmd.Env, k+"="+v)
}
err := ts.cmd.Start()
if ts.cmd.Process != nil {
log.Printf("process %d started: %s", ts.cmd.Process.Pid, strings.Join(ts.args, " "))
}
if err != nil {
log.Printf(err.Error())
ts.stdoutBuf.Close()
ts.stderrBuf.Close()
ts.mu.Lock()
ts.state = stateFailed
ts.mu.Unlock()
return fmt.Errorf("failure starting process: %s", err)
}
go func() {
ts.cmd.Wait()
ts.stdoutBuf.Close()
ts.stderrBuf.Close()
ps := ts.cmd.ProcessState
sy := ps.Sys().(syscall.WaitStatus)
log.Printf("Process %d exited with status %d", ps.Pid(), sy.ExitStatus())
log.Printf(ps.String())
ts.mu.Lock()
if sy.ExitStatus() == 0 {
ts.state = stateStopped
} else {
ts.state = stateFailed
}
ts.mu.Unlock()
}()
return nil
}
// Stop kills the process if it is still running and cleans its directory.
// It should only be called once in the lifetime of a TestServer object.
// Logs fatal if the process has already failed.
func (ts *TestServer) Stop() {
ts.mu.RLock()
defer ts.mu.RUnlock()
if ts.state == stateNew {
log.Fatal("Stop() called, but Start() was never called")
}
if ts.state == stateFailed {
log.Fatalf("Stop() called, but process exited unexpectedly. Stdout:\n%s\nStderr:\n%s\n",
ts.Stdout(), ts.Stderr())
return
}
if ts.state != stateStopped {
// Only call kill if not running. It could have exited properly.
ts.cmd.Process.Kill()
}
// Only cleanup on intentional stops.
_ = os.RemoveAll(ts.baseDir)
}
type logWriter interface {
Write(p []byte) (n int, err error)
String() string
Len() int64
Close()
}
type fileLogWriter struct {
filename string
file *os.File
}
func newFileLogWriter(file string) (*fileLogWriter, error) {
f, err := os.Create(file)
if err != nil {
return nil, err
}
return &fileLogWriter{
filename: file,
file: f,
}, nil
}
func (w fileLogWriter) Close() {
w.file.Close()
}
func (w fileLogWriter) Write(p []byte) (n int, err error) {
return w.file.Write(p)
}
func (w fileLogWriter) String() string {
b, err := ioutil.ReadFile(w.filename)
if err == nil {
return string(b)
}
return ""
}
func (w fileLogWriter) Len() int64 {
s, err := os.Stat(w.filename)
if err == nil {
return s.Size()
}
return 0
}
func defaultEnv() map[string]string {
vars := map[string]string{}
u, err := user.Current()
if err == nil {
if _, ok := vars["USER"]; !ok {
vars["USER"] = u.Username
}
if _, ok := vars["UID"]; !ok {
vars["UID"] = u.Uid
}
if _, ok := vars["GID"]; !ok {
vars["GID"] = u.Gid
}
if _, ok := vars["HOME"]; !ok {
vars["HOME"] = u.HomeDir
}
}
if _, ok := vars["PATH"]; !ok {
vars["PATH"] = os.Getenv("PATH")
}
return vars
}
vendor/github.com/cockroachdb/cockroach-go/testserver/testserver_test.go
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// Copyright 2016 The Cockroach Authors.
//
// 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.
//
// Author: Marc Berhault (marc@cockroachlabs.com)
package testserver_test
import (
"testing"
// Needed for postgres driver test.
"github.com/cockroachdb/cockroach-go/testserver"
_ "github.com/lib/pq"
)
func TestRunServer(t *testing.T) {
db, stop := testserver.NewDBForTest(t)
defer stop()
_, err := db.Exec("SELECT 1")
if err != nil {
t.Fatal(err)
}
}
vendor/github.com/go-sql-driver/mysql/.gitignore
Generated
+8
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@@ -0,0 +1,8 @@
.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
vendor/github.com/go-sql-driver/mysql/.travis.yml
Generated Vendored
+12
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@@ -0,0 +1,12 @@
sudo: false
language: go
go:
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- tip
before_script:
- mysql -e 'create database gotest;'
vendor/github.com/go-sql-driver/mysql/AUTHORS
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# This is the official list of Go-MySQL-Driver authors for copyright purposes.
# If you are submitting a patch, please add your name or the name of the
# organization which holds the copyright to this list in alphabetical order.
# Names should be added to this file as
# Name <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
# Individual Persons
Aaron Hopkins <go-sql-driver at die.net>
Arne Hormann <arnehormann at gmail.com>
Carlos Nieto <jose.carlos at menteslibres.net>
Chris Moos <chris at tech9computers.com>
Daniel Nichter <nil at codenode.com>
Daniël van Eeden <git at myname.nl>
DisposaBoy <disposaboy at dby.me>
Frederick Mayle <frederickmayle at gmail.com>
Gustavo Kristic <gkristic at gmail.com>
Hanno Braun <mail at hannobraun.com>
Henri Yandell <flamefew at gmail.com>
Hirotaka Yamamoto <ymmt2005 at gmail.com>
INADA Naoki <songofacandy at gmail.com>
James Harr <james.harr at gmail.com>
Jian Zhen <zhenjl at gmail.com>
Joshua Prunier <joshua.prunier at gmail.com>
Julien Lefevre <julien.lefevr at gmail.com>
Julien Schmidt <go-sql-driver at julienschmidt.com>
Kamil Dziedzic <kamil at klecza.pl>
Kevin Malachowski <kevin at chowski.com>
Leonardo YongUk Kim <dalinaum at gmail.com>
Luca Looz <luca.looz92 at gmail.com>
Lucas Liu <extrafliu at gmail.com>
Luke Scott <luke at webconnex.com>
Michael Woolnough <michael.woolnough at gmail.com>
Nicola Peduzzi <thenikso at gmail.com>
Paul Bonser <misterpib at gmail.com>
Runrioter Wung <runrioter at gmail.com>
Soroush Pour <me at soroushjp.com>
Stan Putrya <root.vagner at gmail.com>
Stanley Gunawan <gunawan.stanley at gmail.com>
Xiaobing Jiang <s7v7nislands at gmail.com>
Xiuming Chen <cc at cxm.cc>
# Organizations
Barracuda Networks, Inc.
Google Inc.
Stripe Inc.
vendor/github.com/go-sql-driver/mysql/CHANGELOG.md
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## HEAD
Changes:
- Go 1.1 is no longer supported
- Use decimals field from MySQL to format time types (#249)
- Buffer optimizations (#269)
- TLS ServerName defaults to the host (#283)
Bugfixes:
- Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- Fixed handling of queries without columns and rows (#255)
- Fixed a panic when SetKeepAlive() failed (#298)
- Support receiving ERR packet while reading rows (#321)
- Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- Actually zero out bytes in handshake response (#378)
- Fixed race condition in registering LOAD DATA INFILE handler (#383)
- Fixed tests with MySQL 5.7.9+ (#380)
- QueryUnescape TLS config names (#397)
- Fixed "broken pipe" error by writing to closed socket (#390)
New Features:
- Support for returning table alias on Columns() (#289, #359, #382)
- Placeholder interpolation, can be actived with the DSN parameter `interpolateParams=true` (#309, #318)
- Support for uint64 parameters with high bit set (#332, #345)
- Cleartext authentication plugin support (#327)
## Version 1.2 (2014-06-03)
Changes:
- We switched back to a "rolling release". `go get` installs the current master branch again
- Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
- Exported errors to allow easy checking from application code
- Enabled TCP Keepalives on TCP connections
- Optimized INFILE handling (better buffer size calculation, lazy init, ...)
- The DSN parser also checks for a missing separating slash
- Faster binary date / datetime to string formatting
- Also exported the MySQLWarning type
- mysqlConn.Close returns the first error encountered instead of ignoring all errors
- writePacket() automatically writes the packet size to the header
- readPacket() uses an iterative approach instead of the recursive approach to merge splitted packets
New Features:
- `RegisterDial` allows the usage of a custom dial function to establish the network connection
- Setting the connection collation is possible with the `collation` DSN parameter. This parameter should be preferred over the `charset` parameter
- Logging of critical errors is configurable with `SetLogger`
- Google CloudSQL support
Bugfixes:
- Allow more than 32 parameters in prepared statements
- Various old_password fixes
- Fixed TestConcurrent test to pass Go's race detection
- Fixed appendLengthEncodedInteger for large numbers
- Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)
## Version 1.1 (2013-11-02)
Changes:
- Go-MySQL-Driver now requires Go 1.1
- Connections now use the collation `utf8_general_ci` by default. Adding `&charset=UTF8` to the DSN should not be necessary anymore
- Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
- `[]byte(nil)` is now treated as a NULL value. Before, it was treated like an empty string / `[]byte("")`
- DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
- Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
- Optimized the buffer for reading
- stmt.Query now caches column metadata
- New Logo
- Changed the copyright header to include all contributors
- Improved the LOAD INFILE documentation
- The driver struct is now exported to make the driver directly accessible
- Refactored the driver tests
- Added more benchmarks and moved all to a separate file
- Other small refactoring
New Features:
- Added *old_passwords* support: Required in some cases, but must be enabled by adding `allowOldPasswords=true` to the DSN since it is insecure
- Added a `clientFoundRows` parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
- Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used
Bugfixes:
- Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
- Convert to DB timezone when inserting `time.Time`
- Splitted packets (more than 16MB) are now merged correctly
- Fixed false positive `io.EOF` errors when the data was fully read
- Avoid panics on reuse of closed connections
- Fixed empty string producing false nil values
- Fixed sign byte for positive TIME fields
## Version 1.0 (2013-05-14)
Initial Release
vendor/github.com/go-sql-driver/mysql/CONTRIBUTING.md
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# Contributing Guidelines
## Reporting Issues
Before creating a new Issue, please check first if a similar Issue [already exists](https://github.com/go-sql-driver/mysql/issues?state=open) or was [recently closed](https://github.com/go-sql-driver/mysql/issues?direction=desc&page=1&sort=updated&state=closed).
## Contributing Code
By contributing to this project, you share your code under the Mozilla Public License 2, as specified in the LICENSE file.
Don't forget to add yourself to the AUTHORS file.
### Code Review
Everyone is invited to review and comment on pull requests.
If it looks fine to you, comment with "LGTM" (Looks good to me).
If changes are required, notice the reviewers with "PTAL" (Please take another look) after committing the fixes.
Before merging the Pull Request, at least one [team member](https://github.com/go-sql-driver?tab=members) must have commented with "LGTM".
## Development Ideas
If you are looking for ideas for code contributions, please check our [Development Ideas](https://github.com/go-sql-driver/mysql/wiki/Development-Ideas) Wiki page.
vendor/github.com/go-sql-driver/mysql/ISSUE_TEMPLATE.md
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### Issue description
Tell us what should happen and what happens instead
### Example code
```go
If possible, please enter some example code here to reproduce the issue.
```
### Error log
```
If you have an error log, please paste it here.
```
### Configuration
*Driver version (or git SHA):*
*Go version:* run `go version` in your console
*Server version:* E.g. MySQL 5.6, MariaDB 10.0.20
*Server OS:* E.g. Debian 8.1 (Jessie), Windows 10
vendor/github.com/go-sql-driver/mysql/LICENSE
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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.
vendor/github.com/go-sql-driver/mysql/PULL_REQUEST_TEMPLATE.md
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### Description
Please explain the changes you made here.
### Checklist
- [ ] Code compiles correctly
- [ ] Created tests which fail without the change (if possible)
- [ ] All tests passing
- [ ] Extended the README / documentation, if necessary
- [ ] Added myself / the copyright holder to the AUTHORS file
vendor/github.com/go-sql-driver/mysql/README.md
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# Go-MySQL-Driver
A MySQL-Driver for Go's [database/sql](http://golang.org/pkg/database/sql) package
![Go-MySQL-Driver logo](https://raw.github.com/wiki/go-sql-driver/mysql/gomysql_m.png "Golang Gopher holding the MySQL Dolphin")
**Latest stable Release:** [Version 1.2 (June 03, 2014)](https://github.com/go-sql-driver/mysql/releases)
[![Build Status](https://travis-ci.org/go-sql-driver/mysql.png?branch=master)](https://travis-ci.org/go-sql-driver/mysql)
---------------------------------------
* [Features](#features)
* [Requirements](#requirements)
* [Installation](#installation)
* [Usage](#usage)
* [DSN (Data Source Name)](#dsn-data-source-name)
* [Password](#password)
* [Protocol](#protocol)
* [Address](#address)
* [Parameters](#parameters)
* [Examples](#examples)
* [LOAD DATA LOCAL INFILE support](#load-data-local-infile-support)
* [time.Time support](#timetime-support)
* [Unicode support](#unicode-support)
* [Testing / Development](#testing--development)
* [License](#license)
---------------------------------------
## Features
* Lightweight and [fast](https://github.com/go-sql-driver/sql-benchmark "golang MySQL-Driver performance")
* Native Go implementation. No C-bindings, just pure Go
* Connections over TCP/IPv4, TCP/IPv6, Unix domain sockets or [custom protocols](http://godoc.org/github.com/go-sql-driver/mysql#DialFunc)
* Automatic handling of broken connections
* Automatic Connection Pooling *(by database/sql package)*
* Supports queries larger than 16MB
* Full [`sql.RawBytes`](http://golang.org/pkg/database/sql/#RawBytes) support.
* Intelligent `LONG DATA` handling in prepared statements
* Secure `LOAD DATA LOCAL INFILE` support with file Whitelisting and `io.Reader` support
* Optional `time.Time` parsing
* Optional placeholder interpolation
## Requirements
* Go 1.2 or higher
* MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
---------------------------------------
## Installation
Simple install the package to your [$GOPATH](http://code.google.com/p/go-wiki/wiki/GOPATH "GOPATH") with the [go tool](http://golang.org/cmd/go/ "go command") from shell:
```bash
$ go get github.com/go-sql-driver/mysql
```
Make sure [Git is installed](http://git-scm.com/downloads) on your machine and in your system's `PATH`.
## Usage
_Go MySQL Driver_ is an implementation of Go's `database/sql/driver` interface. You only need to import the driver and can use the full [`database/sql`](http://golang.org/pkg/database/sql) API then.
Use `mysql` as `driverName` and a valid [DSN](#dsn-data-source-name) as `dataSourceName`:
```go
import "database/sql"
import _ "github.com/go-sql-driver/mysql"
db, err := sql.Open("mysql", "user:password@/dbname")
```
[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
### DSN (Data Source Name)
The Data Source Name has a common format, like e.g. [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php) uses it, but without type-prefix (optional parts marked by squared brackets):
```
[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
```
A DSN in its fullest form:
```
username:password@protocol(address)/dbname?param=value
```
Except for the databasename, all values are optional. So the minimal DSN is:
```
/dbname
```
If you do not want to preselect a database, leave `dbname` empty:
```
/
```
This has the same effect as an empty DSN string:
```
```
Alternatively, [Config.FormatDSN](https://godoc.org/github.com/go-sql-driver/mysql#Config.FormatDSN) can be used to create a DSN string by filling a struct.
#### Password
Passwords can consist of any character. Escaping is **not** necessary.
#### Protocol
See [net.Dial](http://golang.org/pkg/net/#Dial) for more information which networks are available.
In general you should use an Unix domain socket if available and TCP otherwise for best performance.
#### Address
For TCP and UDP networks, addresses have the form `host:port`.
If `host` is a literal IPv6 address, it must be enclosed in square brackets.
The functions [net.JoinHostPort](http://golang.org/pkg/net/#JoinHostPort) and [net.SplitHostPort](http://golang.org/pkg/net/#SplitHostPort) manipulate addresses in this form.
For Unix domain sockets the address is the absolute path to the MySQL-Server-socket, e.g. `/var/run/mysqld/mysqld.sock` or `/tmp/mysql.sock`.
#### Parameters
*Parameters are case-sensitive!*
Notice that any of `true`, `TRUE`, `True` or `1` is accepted to stand for a true boolean value. Not surprisingly, false can be specified as any of: `false`, `FALSE`, `False` or `0`.
##### `allowAllFiles`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowAllFiles=true` disables the file Whitelist for `LOAD DATA LOCAL INFILE` and allows *all* files.
[*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)
##### `allowCleartextPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowCleartextPasswords=true` allows using the [cleartext client side plugin](http://dev.mysql.com/doc/en/cleartext-authentication-plugin.html) if required by an account, such as one defined with the [PAM authentication plugin](http://dev.mysql.com/doc/en/pam-authentication-plugin.html). Sending passwords in clear text may be a security problem in some configurations. To avoid problems if there is any possibility that the password would be intercepted, clients should connect to MySQL Server using a method that protects the password. Possibilities include [TLS / SSL](#tls), IPsec, or a private network.
##### `allowOldPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowOldPasswords=true` allows the usage of the insecure old password method. This should be avoided, but is necessary in some cases. See also [the old_passwords wiki page](https://github.com/go-sql-driver/mysql/wiki/old_passwords).
##### `charset`
```
Type: string
Valid Values: <name>
Default: none
```
Sets the charset used for client-server interaction (`"SET NAMES <value>"`). If multiple charsets are set (separated by a comma), the following charset is used if setting the charset failes. This enables for example support for `utf8mb4` ([introduced in MySQL 5.5.3](http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html)) with fallback to `utf8` for older servers (`charset=utf8mb4,utf8`).
Usage of the `charset` parameter is discouraged because it issues additional queries to the server.
Unless you need the fallback behavior, please use `collation` instead.
##### `collation`
```
Type: string
Valid Values: <name>
Default: utf8_general_ci
```
Sets the collation used for client-server interaction on connection. In contrast to `charset`, `collation` does not issue additional queries. If the specified collation is unavailable on the target server, the connection will fail.
A list of valid charsets for a server is retrievable with `SHOW COLLATION`.
##### `clientFoundRows`
```
Type: bool
Valid Values: true, false
Default: false
```
`clientFoundRows=true` causes an UPDATE to return the number of matching rows instead of the number of rows changed.
##### `columnsWithAlias`
```
Type: bool
Valid Values: true, false
Default: false
```
When `columnsWithAlias` is true, calls to `sql.Rows.Columns()` will return the table alias and the column name separated by a dot. For example:
```
SELECT u.id FROM users as u
```
will return `u.id` instead of just `id` if `columnsWithAlias=true`.
##### `interpolateParams`
```
Type: bool
Valid Values: true, false
Default: false
```
If `interpolateParams` is true, placeholders (`?`) in calls to `db.Query()` and `db.Exec()` are interpolated into a single query string with given parameters. This reduces the number of roundtrips, since the driver has to prepare a statement, execute it with given parameters and close the statement again with `interpolateParams=false`.
*This can not be used together with the multibyte encodings BIG5, CP932, GB2312, GBK or SJIS. These are blacklisted as they may [introduce a SQL injection vulnerability](http://stackoverflow.com/a/12118602/3430118)!*
##### `loc`
```
Type: string
Valid Values: <escaped name>
Default: UTC
```
Sets the location for time.Time values (when using `parseTime=true`). *"Local"* sets the system's location. See [time.LoadLocation](http://golang.org/pkg/time/#LoadLocation) for details.
Note that this sets the location for time.Time values but does not change MySQL's [time_zone setting](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html). For that see the [time_zone system variable](#system-variables), which can also be set as a DSN parameter.
Please keep in mind, that param values must be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed. Alternatively you can manually replace the `/` with `%2F`. For example `US/Pacific` would be `loc=US%2FPacific`.
##### `multiStatements`
```
Type: bool
Valid Values: true, false
Default: false
```
Allow multiple statements in one query. While this allows batch queries, it also greatly increases the risk of SQL injections. Only the result of the first query is returned, all other results are silently discarded.
When `multiStatements` is used, `?` parameters must only be used in the first statement.
##### `parseTime`
```
Type: bool
Valid Values: true, false
Default: false
```
`parseTime=true` changes the output type of `DATE` and `DATETIME` values to `time.Time` instead of `[]byte` / `string`
##### `readTimeout`
```
Type: decimal number
Default: 0
```
I/O read timeout. The value must be a decimal number with an unit suffix ( *"ms"*, *"s"*, *"m"*, *"h"* ), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `strict`
```
Type: bool
Valid Values: true, false
Default: false
```
`strict=true` enables the strict mode in which MySQL warnings are treated as errors.
By default MySQL also treats notes as warnings. Use [`sql_notes=false`](http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_sql_notes) to ignore notes. See the [examples](#examples) for an DSN example.
##### `timeout`
```
Type: decimal number
Default: OS default
```
*Driver* side connection timeout. The value must be a decimal number with an unit suffix ( *"ms"*, *"s"*, *"m"*, *"h"* ), such as *"30s"*, *"0.5m"* or *"1m30s"*. To set a server side timeout, use the parameter [`wait_timeout`](http://dev.mysql.com/doc/refman/5.6/en/server-system-variables.html#sysvar_wait_timeout).
##### `tls`
```
Type: bool / string
Valid Values: true, false, skip-verify, <name>
Default: false
```
`tls=true` enables TLS / SSL encrypted connection to the server. Use `skip-verify` if you want to use a self-signed or invalid certificate (server side). Use a custom value registered with [`mysql.RegisterTLSConfig`](http://godoc.org/github.com/go-sql-driver/mysql#RegisterTLSConfig).
##### `writeTimeout`
```
Type: decimal number
Default: 0
```
I/O write timeout. The value must be a decimal number with an unit suffix ( *"ms"*, *"s"*, *"m"*, *"h"* ), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### System Variables
All other parameters are interpreted as system variables:
* `autocommit`: `"SET autocommit=<value>"`
* [`time_zone`](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html): `"SET time_zone=<value>"`
* [`tx_isolation`](https://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_tx_isolation): `"SET tx_isolation=<value>"`
* `param`: `"SET <param>=<value>"`
*The values must be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed!*
#### Examples
```
user@unix(/path/to/socket)/dbname
```
```
root:pw@unix(/tmp/mysql.sock)/myDatabase?loc=Local
```
```
user:password@tcp(localhost:5555)/dbname?tls=skip-verify&autocommit=true
```
Use the [strict mode](#strict) but ignore notes:
```
user:password@/dbname?strict=true&sql_notes=false
```
TCP via IPv6:
```
user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?timeout=90s&collation=utf8mb4_unicode_ci
```
TCP on a remote host, e.g. Amazon RDS:
```
id:password@tcp(your-amazonaws-uri.com:3306)/dbname
```
Google Cloud SQL on App Engine:
```
user@cloudsql(project-id:instance-name)/dbname
```
TCP using default port (3306) on localhost:
```
user:password@tcp/dbname?charset=utf8mb4,utf8&sys_var=esc%40ped
```
Use the default protocol (tcp) and host (localhost:3306):
```
user:password@/dbname
```
No Database preselected:
```
user:password@/
```
### `LOAD DATA LOCAL INFILE` support
For this feature you need direct access to the package. Therefore you must change the import path (no `_`):
```go
import "github.com/go-sql-driver/mysql"
```
Files must be whitelisted by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the Whitelist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)).
To use a `io.Reader` a handler function must be registered with `mysql.RegisterReaderHandler(name, handler)` which returns a `io.Reader` or `io.ReadCloser`. The Reader is available with the filepath `Reader::<name>` then. Choose different names for different handlers and `DeregisterReaderHandler` when you don't need it anymore.
See the [godoc of Go-MySQL-Driver](http://godoc.org/github.com/go-sql-driver/mysql "golang mysql driver documentation") for details.
### `time.Time` support
The default internal output type of MySQL `DATE` and `DATETIME` values is `[]byte` which allows you to scan the value into a `[]byte`, `string` or `sql.RawBytes` variable in your programm.
However, many want to scan MySQL `DATE` and `DATETIME` values into `time.Time` variables, which is the logical opposite in Go to `DATE` and `DATETIME` in MySQL. You can do that by changing the internal output type from `[]byte` to `time.Time` with the DSN parameter `parseTime=true`. You can set the default [`time.Time` location](http://golang.org/pkg/time/#Location) with the `loc` DSN parameter.
**Caution:** As of Go 1.1, this makes `time.Time` the only variable type you can scan `DATE` and `DATETIME` values into. This breaks for example [`sql.RawBytes` support](https://github.com/go-sql-driver/mysql/wiki/Examples#rawbytes).
Alternatively you can use the [`NullTime`](http://godoc.org/github.com/go-sql-driver/mysql#NullTime) type as the scan destination, which works with both `time.Time` and `string` / `[]byte`.
### Unicode support
Since version 1.1 Go-MySQL-Driver automatically uses the collation `utf8_general_ci` by default.
Other collations / charsets can be set using the [`collation`](#collation) DSN parameter.
Version 1.0 of the driver recommended adding `&charset=utf8` (alias for `SET NAMES utf8`) to the DSN to enable proper UTF-8 support. This is not necessary anymore. The [`collation`](#collation) parameter should be preferred to set another collation / charset than the default.
See http://dev.mysql.com/doc/refman/5.7/en/charset-unicode.html for more details on MySQL's Unicode support.
## Testing / Development
To run the driver tests you may need to adjust the configuration. See the [Testing Wiki-Page](https://github.com/go-sql-driver/mysql/wiki/Testing "Testing") for details.
Go-MySQL-Driver is not feature-complete yet. Your help is very appreciated.
If you want to contribute, you can work on an [open issue](https://github.com/go-sql-driver/mysql/issues?state=open) or review a [pull request](https://github.com/go-sql-driver/mysql/pulls).
See the [Contribution Guidelines](https://github.com/go-sql-driver/mysql/blob/master/CONTRIBUTING.md) for details.
---------------------------------------
## License
Go-MySQL-Driver is licensed under the [Mozilla Public License Version 2.0](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
Mozilla summarizes the license scope as follows:
> MPL: The copyleft applies to any files containing MPLed code.
That means:
* You can **use** the **unchanged** source code both in private and commercially
* When distributing, you **must publish** the source code of any **changed files** licensed under the MPL 2.0 under a) the MPL 2.0 itself or b) a compatible license (e.g. GPL 3.0 or Apache License 2.0)
* You **needn't publish** the source code of your library as long as the files licensed under the MPL 2.0 are **unchanged**
Please read the [MPL 2.0 FAQ](http://www.mozilla.org/MPL/2.0/FAQ.html) if you have further questions regarding the license.
You can read the full terms here: [LICENSE](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
![Go Gopher and MySQL Dolphin](https://raw.github.com/wiki/go-sql-driver/mysql/go-mysql-driver_m.jpg "Golang Gopher transporting the MySQL Dolphin in a wheelbarrow")

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