gotosocial/internal/db/bundb/hook.go
kim 7af9117e0d [feature + performance] add JSON logging format (#4355)
# Description

Adds JSON logging as an optional alternative log output format. In the process this moves our log formatting itself into a separate subpkg to make it more easily modular, and improves caller name getting with some calling function name caching.

## Checklist

- [x] I/we have read the [GoToSocial contribution guidelines](https://codeberg.org/superseriousbusiness/gotosocial/src/branch/main/CONTRIBUTING.md).
- [x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
- [x] I/we have not leveraged AI to create the proposed changes.
- [x] I/we have performed a self-review of added code.
- [x] I/we have written code that is legible and maintainable by others.
- [x] I/we have commented the added code, particularly in hard-to-understand areas.
- [x] I/we have made any necessary changes to documentation.
- [ ] I/we have added tests that cover new code.
- [x] I/we have run tests and they pass locally with the changes.
- [x] I/we have run `go fmt ./...` and `golangci-lint run`.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4355
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
2025-08-09 16:23:00 +02:00

58 lines
1.7 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bundb
import (
"context"
"time"
"code.superseriousbusiness.org/gotosocial/internal/log"
"codeberg.org/gruf/go-kv/v2"
"github.com/uptrace/bun"
)
// queryHook implements bun.QueryHook
type queryHook struct{}
func (queryHook) BeforeQuery(ctx context.Context, _ *bun.QueryEvent) context.Context {
return ctx // do nothing
}
// AfterQuery logs the time taken to query, the operation (select, update, etc), and the query itself as translated by bun.
func (queryHook) AfterQuery(ctx context.Context, event *bun.QueryEvent) {
// Get the database query duration.
dur := time.Since(event.StartTime)
switch {
// Warn on slow queries.
case dur > time.Second:
log.WithContext(ctx).
WithFields(kv.Fields{
{"duration", dur},
{"query", event.Query},
}...).
Warn("SLOW DATABASE QUERY")
// On trace log query info.
case log.Level() >= log.TRACE:
log.TraceKVs(ctx, kv.Fields{
{K: "duration", V: dur},
{K: "query", V: event.Query},
}...)
}
}