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// Copyright 2024 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 esbuild
import (
"encoding/json"
"strings"
"github.com/evanw/esbuild/pkg/api"
"github.com/gohugoio/hugo/common/paths"
)
type sourceMap struct {
Version int `json:"version"`
Sources []string `json:"sources"`
SourcesContent []string `json:"sourcesContent"`
Mappings string `json:"mappings"`
Names []string `json:"names"`
}
func fixOutputFile(o *api.OutputFile, resolve func(string) string) error {
if strings.HasSuffix(o.Path, ".map") {
b, err := fixSourceMap(o.Contents, resolve)
if err != nil {
return err
}
o.Contents = b
}
return nil
}
func fixSourceMap(s []byte, resolve func(string) string) ([]byte, error) {
var sm sourceMap
if err := json.Unmarshal([]byte(s), &sm); err != nil {
return nil, err
}
sm.Sources = fixSourceMapSources(sm.Sources, resolve)
b, err := json.Marshal(sm)
if err != nil {
return nil, err
}
return b, nil
}
func fixSourceMapSources(s []string, resolve func(string) string) []string {
var result []string
for _, src := range s {
if s := resolve(src); s != "" {
// Absolute filenames works fine on U*ix (tested in Chrome on MacOs), but works very poorly on Windows (again Chrome).
// So, convert it to a URL.
if u, err := paths.UrlFromFilename(s); err == nil {
result = append(result, u.String())
}
}
}
return result
}
// Used in tests.
func SourcesFromSourceMap(s string) []string {
var sm sourceMap
if err := json.Unmarshal([]byte(s), &sm); err != nil {
return nil
}
return sm.Sources
}
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