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hugo/resources/internal/resourcepaths.go

108 lines
2.5 KiB
Go

// 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 internal
import (
"path"
"path/filepath"
"strings"
"github.com/gohugoio/hugo/common/paths"
)
// ResourcePaths holds path information for a resource.
// All directories in here have Unix-style slashes, with leading slash, but no trailing slash.
// Empty directories are represented with an empty string.
type ResourcePaths struct {
// This is the directory component for the target file or link.
Dir string
// Any base directory for the target file. Will be prepended to Dir.
BaseDirTarget string
// This is the directory component for the link will be prepended to Dir.
BaseDirLink string
// Set when publishing in a multihost setup.
TargetBasePaths []string
// This is the File component, e.g. "data.json".
File string
}
func (d ResourcePaths) join(p ...string) string {
var s string
for i, pp := range p {
if pp == "" {
continue
}
if i > 0 && !strings.HasPrefix(pp, "/") {
pp = "/" + pp
}
s += pp
}
if !strings.HasPrefix(s, "/") {
s = "/" + s
}
return s
}
func (d ResourcePaths) TargetLink() string {
return d.join(d.BaseDirLink, d.Dir, d.File)
}
func (d ResourcePaths) TargetPath() string {
return d.join(d.BaseDirTarget, d.Dir, d.File)
}
func (d ResourcePaths) Path() string {
return d.join(d.Dir, d.File)
}
func (d ResourcePaths) TargetPaths() []string {
if len(d.TargetBasePaths) == 0 {
return []string{d.TargetPath()}
}
var paths []string
for _, p := range d.TargetBasePaths {
paths = append(paths, p+d.TargetPath())
}
return paths
}
func (d ResourcePaths) TargetFilenames() []string {
filenames := d.TargetPaths()
for i, p := range filenames {
filenames[i] = filepath.FromSlash(p)
}
return filenames
}
func (d ResourcePaths) FromTargetPath(targetPath string) ResourcePaths {
targetPath = filepath.ToSlash(targetPath)
dir, file := path.Split(targetPath)
dir = paths.ToSlashPreserveLeading(dir)
if dir == "/" {
dir = ""
}
d.Dir = dir
d.File = file
d.BaseDirLink = ""
d.BaseDirTarget = ""
return d
}