hugo baseURL 代码
文件路径：/hugolib/paths/baseURL.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 paths
import (
"fmt"
"net/url"
"strings"
)
/ A BaseURL in Hugo is normally on the form scheme://path, but the
/ form scheme: is also valid (mailto:hugo@rules.com).
type BaseURL struct {
url *url.URL
urlStr string
}
func (b BaseURL) String() string {
if b.urlStr != "" {
return b.urlStr
}
return b.url.String()
}
func (b BaseURL) Path() string {
return b.url.Path
}
/ HostURL returns the URL to the host root without any path elements.
func (b BaseURL) HostURL() string {
return strings.TrimSuffix(b.String(), b.Path())
}
/ WithProtocol returns the BaseURL prefixed with the given protocol.
/ The Protocol is normally of the form "scheme://", i.e. "webcal://".
func (b BaseURL) WithProtocol(protocol string) (string, error) {
u := b.URL()
scheme := protocol
isFullProtocol := strings.HasSuffix(scheme, "://")
isOpaqueProtocol := strings.HasSuffix(scheme, ":")
if isFullProtocol {
scheme = strings.TrimSuffix(scheme, "://")
} else if isOpaqueProtocol {
scheme = strings.TrimSuffix(scheme, ":")
}
u.Scheme = scheme
if isFullProtocol && u.Opaque != "" {
u.Opaque = "/" + u.Opaque
} else if isOpaqueProtocol && u.Opaque == "" {
return "", fmt.Errorf("cannot determine BaseURL for protocol %q", protocol)
}
return u.String(), nil
}
/ URL returns a copy of the internal URL.
/ The copy can be safely used and modified.
func (b BaseURL) URL() *url.URL {
c := *b.url
return &c
}
func newBaseURLFromString(b string) (BaseURL, error) {
var result BaseURL
base, err := url.Parse(b)
if err != nil {
return result, err
}
return BaseURL{url: base, urlStr: base.String()}, nil
}