gotosocial/internal/log/init.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

66 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 log
import (
"fmt"
"log/syslog"
"strings"
)
// ParseLevel will parse the log level from
// given string and set to appropriate LEVEL.
func ParseLevel(str string) error {
switch strings.ToLower(str) {
case "trace":
SetLevel(TRACE)
case "debug":
SetLevel(DEBUG)
case "", "info":
SetLevel(INFO)
case "warn":
SetLevel(WARN)
case "error":
SetLevel(ERROR)
case "fatal", "panic":
SetLevel(PANIC)
default:
return fmt.Errorf("unknown log level: %q", str)
}
return nil
}
// ParseFormat will parse the log format from
// given string and set appropriate formatter.
func ParseFormat(str string) error {
switch strings.ToLower(str) {
case "json":
SetJSON(true)
case "", "logfmt":
SetJSON(false)
default:
return fmt.Errorf("unknown log format: %q", str)
}
return nil
}
// EnableSyslog will enabling logging to the syslog at given address.
func EnableSyslog(proto, addr string) (err error) {
sysout, err = syslog.Dial(proto, addr, 0, "gotosocial")
return err
}