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errgo.go
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errgo.go
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// SPDX-License-Identifier: AGPL-3.0-only
//
// 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, version 3.
//
// 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 <https://www.gnu.org/licenses/>
package errgo
// Wrap add context to error message.
func Wrap(err error, msg string) error {
if err == nil {
return nil
}
if e, ok := err.(*withStackError); ok { //nolint:errorlint
// keep Stack
return &withStackError{
Err: &wrapError{msg: msg, err: e.Err},
Stack: e.Stack,
}
}
return &withStackError{Err: &wrapError{msg: msg, err: err}, Stack: callers()}
}
// Msg replace error message.
func Msg(err error, msg string) error {
if err == nil {
return nil
}
if e, ok := err.(*withStackError); ok { //nolint:errorlint
// keep traces
return &withStackError{
Err: &msgError{msg: msg, err: e.Err},
Stack: e.Stack,
}
}
return &withStackError{Err: &msgError{msg: msg, err: err}, Stack: callers()}
}
// MsgNoTrace replace error message without adding trace.
// this is used to create global errors, which also avoid add trace.
func MsgNoTrace(err error, msg string) error {
if err == nil {
return nil
}
return &msgError{msg: msg, err: err}
}