1 files changed, 0 insertions, 247 deletions
diff --git a/vendor/github.com/lib/pq/conn_go18.go b/vendor/github.com/lib/pq/conn_go18.go
deleted file mode 100644
index 63d4ca6..0000000
--- a/vendor/github.com/lib/pq/conn_go18.go
+++ /dev/null
@@ -1,247 +0,0 @@
-package pq
-
-import (
-	"context"
-	"database/sql"
-	"database/sql/driver"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"time"
-)
-
-const (
-	watchCancelDialContextTimeout = time.Second * 10
-)
-
-// Implement the "QueryerContext" interface
-func (cn *conn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
-	list := make([]driver.Value, len(args))
-	for i, nv := range args {
-		list[i] = nv.Value
-	}
-	finish := cn.watchCancel(ctx)
-	r, err := cn.query(query, list)
-	if err != nil {
-		if finish != nil {
-			finish()
-		}
-		return nil, err
-	}
-	r.finish = finish
-	return r, nil
-}
-
-// Implement the "ExecerContext" interface
-func (cn *conn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
-	list := make([]driver.Value, len(args))
-	for i, nv := range args {
-		list[i] = nv.Value
-	}
-
-	if finish := cn.watchCancel(ctx); finish != nil {
-		defer finish()
-	}
-
-	return cn.Exec(query, list)
-}
-
-// Implement the "ConnPrepareContext" interface
-func (cn *conn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
-	if finish := cn.watchCancel(ctx); finish != nil {
-		defer finish()
-	}
-	return cn.Prepare(query)
-}
-
-// Implement the "ConnBeginTx" interface
-func (cn *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
-	var mode string
-
-	switch sql.IsolationLevel(opts.Isolation) {
-	case sql.LevelDefault:
-		// Don't touch mode: use the server's default
-	case sql.LevelReadUncommitted:
-		mode = " ISOLATION LEVEL READ UNCOMMITTED"
-	case sql.LevelReadCommitted:
-		mode = " ISOLATION LEVEL READ COMMITTED"
-	case sql.LevelRepeatableRead:
-		mode = " ISOLATION LEVEL REPEATABLE READ"
-	case sql.LevelSerializable:
-		mode = " ISOLATION LEVEL SERIALIZABLE"
-	default:
-		return nil, fmt.Errorf("pq: isolation level not supported: %d", opts.Isolation)
-	}
-
-	if opts.ReadOnly {
-		mode += " READ ONLY"
-	} else {
-		mode += " READ WRITE"
-	}
-
-	tx, err := cn.begin(mode)
-	if err != nil {
-		return nil, err
-	}
-	cn.txnFinish = cn.watchCancel(ctx)
-	return tx, nil
-}
-
-func (cn *conn) Ping(ctx context.Context) error {
-	if finish := cn.watchCancel(ctx); finish != nil {
-		defer finish()
-	}
-	rows, err := cn.simpleQuery(";")
-	if err != nil {
-		return driver.ErrBadConn // https://golang.org/pkg/database/sql/driver/#Pinger
-	}
-	rows.Close()
-	return nil
-}
-
-func (cn *conn) watchCancel(ctx context.Context) func() {
-	if done := ctx.Done(); done != nil {
-		finished := make(chan struct{}, 1)
-		go func() {
-			select {
-			case <-done:
-				select {
-				case finished <- struct{}{}:
-				default:
-					// We raced with the finish func, let the next query handle this with the
-					// context.
-					return
-				}
-
-				// Set the connection state to bad so it does not get reused.
-				cn.err.set(ctx.Err())
-
-				// At this point the function level context is canceled,
-				// so it must not be used for the additional network
-				// request to cancel the query.
-				// Create a new context to pass into the dial.
-				ctxCancel, cancel := context.WithTimeout(context.Background(), watchCancelDialContextTimeout)
-				defer cancel()
-
-				_ = cn.cancel(ctxCancel)
-			case <-finished:
-			}
-		}()
-		return func() {
-			select {
-			case <-finished:
-				cn.err.set(ctx.Err())
-				cn.Close()
-			case finished <- struct{}{}:
-			}
-		}
-	}
-	return nil
-}
-
-func (cn *conn) cancel(ctx context.Context) error {
-	// Create a new values map (copy). This makes sure the connection created
-	// in this method cannot write to the same underlying data, which could
-	// cause a concurrent map write panic. This is necessary because cancel
-	// is called from a goroutine in watchCancel.
-	o := make(values)
-	for k, v := range cn.opts {
-		o[k] = v
-	}
-
-	c, err := dial(ctx, cn.dialer, o)
-	if err != nil {
-		return err
-	}
-	defer c.Close()
-
-	{
-		can := conn{
-			c: c,
-		}
-		err = can.ssl(o)
-		if err != nil {
-			return err
-		}
-
-		w := can.writeBuf(0)
-		w.int32(80877102) // cancel request code
-		w.int32(cn.processID)
-		w.int32(cn.secretKey)
-
-		if err := can.sendStartupPacket(w); err != nil {
-			return err
-		}
-	}
-
-	// Read until EOF to ensure that the server received the cancel.
-	{
-		_, err := io.Copy(ioutil.Discard, c)
-		return err
-	}
-}
-
-// Implement the "StmtQueryContext" interface
-func (st *stmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
-	list := make([]driver.Value, len(args))
-	for i, nv := range args {
-		list[i] = nv.Value
-	}
-	finish := st.watchCancel(ctx)
-	r, err := st.query(list)
-	if err != nil {
-		if finish != nil {
-			finish()
-		}
-		return nil, err
-	}
-	r.finish = finish
-	return r, nil
-}
-
-// Implement the "StmtExecContext" interface
-func (st *stmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
-	list := make([]driver.Value, len(args))
-	for i, nv := range args {
-		list[i] = nv.Value
-	}
-
-	if finish := st.watchCancel(ctx); finish != nil {
-		defer finish()
-	}
-
-	return st.Exec(list)
-}
-
-// watchCancel is implemented on stmt in order to not mark the parent conn as bad
-func (st *stmt) watchCancel(ctx context.Context) func() {
-	if done := ctx.Done(); done != nil {
-		finished := make(chan struct{})
-		go func() {
-			select {
-			case <-done:
-				// At this point the function level context is canceled,
-				// so it must not be used for the additional network
-				// request to cancel the query.
-				// Create a new context to pass into the dial.
-				ctxCancel, cancel := context.WithTimeout(context.Background(), watchCancelDialContextTimeout)
-				defer cancel()
-
-				_ = st.cancel(ctxCancel)
-				finished <- struct{}{}
-			case <-finished:
-			}
-		}()
-		return func() {
-			select {
-			case <-finished:
-			case finished <- struct{}{}:
-			}
-		}
-	}
-	return nil
-}
-
-func (st *stmt) cancel(ctx context.Context) error {
-	return st.cn.cancel(ctx)
-}