Configure warning handler for edgeql-go (#367)

fixes #364

Author: fmoor

cmd/edgeql-go/testdata/no-args/test-project1/warn_on_call.edgeql

@@ -0,0 +1 @@
+SELECT _warn_on_call()

cmd/edgeql-go/testdata/no-args/test-project1/warn_on_call_edgeql.go.assert

@@ -0,0 +1,53 @@
+// Code generated by github.com/geldata/gel-go/cmd/edgeql-go DO NOT EDIT.
+
+package main
+
+import (
+	"context"
+	_ "embed"
+
+	gel "github.com/geldata/gel-go"
+)
+
+//go:embed warn_on_call.edgeql
+var warnOnCallCmd string
+
+// warnOnCall
+// runs the query found in
+// warn_on_call.edgeql
+func warnOnCall(
+	ctx context.Context,
+	client *gel.Client,
+) (int64, error) {
+	var result int64
+
+	err := client.QuerySingle(
+		ctx,
+		warnOnCallCmd,
+		&result,
+	)
+
+	return result, err
+}
+
+// warnOnCallJSON
+// runs the query found in
+// warn_on_call.edgeql
+// returning the results as json encoded bytes
+func warnOnCallJSON(
+	ctx context.Context,
+	client *gel.Client,
+) ([]byte, error) {
+	var result []byte
+
+	err := client.QuerySingleJSON(
+		ctx,
+		warnOnCallCmd,
+		&result,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}

internal/client/introspect.go

@@ -19,6 +19,7 @@ package gel
 import (
 	"context"
 
+	"github.com/geldata/gel-go/gelcfg"
 	"github.com/geldata/gel-go/internal"
 	"github.com/geldata/gel-go/internal/descriptor"
 )
@@ -56,6 +57,9 @@ func Describe(
 		fmt:          Binary,
 		expCard:      Many,
 		capabilities: userCapabilities,
+		cfg: QueryConfig{
+			WarningHandler: gelcfg.LogWarnings,
+		},
 	}
 
 	r, err := conn.conn.acquireReader(ctx)
@@ -96,6 +100,9 @@ func DescribeV2(
 		expCard:      Many,
 		capabilities: userCapabilities,
 		parse:        true,
+		cfg: QueryConfig{
+			WarningHandler: gelcfg.LogWarnings,
+		},
 	}
 
 	r, err := conn.conn.acquireReader(ctx)