gotosocial/internal/gtserror/error.go
Daenney 5e2bf0bdca
[chore] Improve copyright header handling (#1608)
* [chore] Remove years from all license headers

Years or year ranges aren't required in license headers. Many projects
have removed them in recent years and it avoids a bit of yearly toil.

In many cases our copyright claim was also a bit dodgy since we added
the 2021-2023 header to files created after 2021 but you can't claim
copyright into the past that way.

* [chore] Add license header check

This ensures a license header is always added to any new file. This
avoids maintainers/reviewers needing to remember to check for and ask
for it in case a contribution doesn't include it.

* [chore] Add missing license headers

* [chore] Further updates to license header

* Use the more common // indentend comment format
* Remove the hack we had for the linter now that we use the // format
* Add SPDX license identifier
2023-03-12 16:00:57 +01:00

60 lines
1.9 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 gtserror
import (
"codeberg.org/gruf/go-errors/v2"
)
// package private error key type.
type errkey int
const (
// error value keys.
_ errkey = iota
statusCodeKey
notFoundKey
)
// StatusCode checks error for a stored status code value. For example
// an error from an outgoing HTTP request may be stored, or an API handler
// expected response status code may be stored.
func StatusCode(err error) int {
i, _ := errors.Value(err, statusCodeKey).(int)
return i
}
// WithStatusCode will wrap the given error to store provided status code,
// returning wrapped error. See StatusCode() for example use-cases.
func WithStatusCode(err error, code int) error {
return errors.WithValue(err, statusCodeKey, code)
}
// NotFound checks error for a stored "not found" flag. For example
// an error from an outgoing HTTP request due to DNS lookup.
func NotFound(err error) bool {
_, ok := errors.Value(err, notFoundKey).(struct{})
return ok
}
// SetNotFound will wrap the given error to store a "not found" flag,
// returning wrapped error. See NotFound() for example use-cases.
func SetNotFound(err error) error {
return errors.WithValue(err, notFoundKey, struct{}{})
}