hugo/common/herrors/line_number_extractors.go
Bjørn Erik Pedersen f2946da9e8 Improve error messages, esp. when the server is running
* Add file context to minifier errors when publishing
* Misc fixes (see issues)
* Allow custom server error template in layouts/server/error.html

To get to this, this commit also cleans up and simplifies the code surrounding errors and files. This also removes the usage of `github.com/pkg/errors`, mostly because of https://github.com/pkg/errors/issues/223 -- but also because most of this is now built-in to Go.

Fixes #9852
Fixes #9857
Fixes #9863
2022-05-06 19:43:22 +02:00

63 lines
1.5 KiB
Go

// Copyright 2018 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package herrors
import (
"regexp"
"strconv"
)
var lineNumberExtractors = []lineNumberExtractor{
// Template/shortcode parse errors
newLineNumberErrHandlerFromRegexp(`:(\d+):(\d*):`),
newLineNumberErrHandlerFromRegexp(`:(\d+):`),
// YAML parse errors
newLineNumberErrHandlerFromRegexp(`line (\d+):`),
// i18n bundle errors
newLineNumberErrHandlerFromRegexp(`\((\d+),\s(\d*)`),
}
type lineNumberExtractor func(e error) (int, int)
func newLineNumberErrHandlerFromRegexp(expression string) lineNumberExtractor {
re := regexp.MustCompile(expression)
return extractLineNo(re)
}
func extractLineNo(re *regexp.Regexp) lineNumberExtractor {
return func(e error) (int, int) {
if e == nil {
panic("no error")
}
col := 1
s := e.Error()
m := re.FindStringSubmatch(s)
if len(m) >= 2 {
lno, _ := strconv.Atoi(m[1])
if len(m) > 2 {
col, _ = strconv.Atoi(m[2])
}
if col <= 0 {
col = 1
}
return lno, col
}
return 0, col
}
}