127 lines
3.0 KiB
Go
127 lines
3.0 KiB
Go
// Copyright 2020 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package page
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import (
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"path/filepath"
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"strings"
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"github.com/pkg/errors"
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"github.com/gohugoio/hugo/common/maps"
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"github.com/gohugoio/hugo/hugofs/glob"
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"github.com/mitchellh/mapstructure"
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)
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// A PageMatcher can be used to match a Page with Glob patterns.
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// Note that the pattern matching is case insensitive.
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type PageMatcher struct {
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// A Glob pattern matching the content path below /content.
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// Expects Unix-styled slashes.
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// Note that this is the virtual path, so it starts at the mount root
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// with a leading "/".
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Path string
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// A Glob pattern matching the Page's Kind(s), e.g. "{home,section}"
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Kind string
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// A Glob pattern matching the Page's language, e.g. "{en,sv}".
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Lang string
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}
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// Matches returns whether p matches this matcher.
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func (m PageMatcher) Matches(p Page) bool {
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if m.Kind != "" {
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g, err := glob.GetGlob(m.Kind)
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if err == nil && !g.Match(p.Kind()) {
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return false
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}
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}
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if m.Lang != "" {
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g, err := glob.GetGlob(m.Lang)
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if err == nil && !g.Match(p.Lang()) {
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return false
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}
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}
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if m.Path != "" {
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g, err := glob.GetGlob(m.Path)
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// TODO(bep) Path() vs filepath vs leading slash.
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p := strings.ToLower(filepath.ToSlash(p.Path()))
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if !(strings.HasPrefix(p, "/")) {
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p = "/" + p
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}
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if err == nil && !g.Match(p) {
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return false
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}
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}
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return true
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}
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// DecodeCascade decodes in which could be eiter a map or a slice of maps.
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func DecodeCascade(in interface{}) (map[PageMatcher]maps.Params, error) {
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m, err := maps.ToSliceStringMap(in)
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if err != nil {
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return map[PageMatcher]maps.Params{
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{}: maps.ToStringMap(in),
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}, nil
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}
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cascade := make(map[PageMatcher]maps.Params)
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for _, vv := range m {
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var m PageMatcher
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if mv, found := vv["_target"]; found {
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err := DecodePageMatcher(mv, &m)
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if err != nil {
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return nil, err
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}
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}
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c, found := cascade[m]
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if found {
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// Merge
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for k, v := range vv {
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if _, found := c[k]; !found {
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c[k] = v
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}
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}
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} else {
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cascade[m] = vv
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}
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}
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return cascade, nil
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}
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// DecodePageMatcher decodes m into v.
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func DecodePageMatcher(m interface{}, v *PageMatcher) error {
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if err := mapstructure.WeakDecode(m, v); err != nil {
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return err
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}
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v.Kind = strings.ToLower(v.Kind)
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if v.Kind != "" {
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if _, found := kindMap[v.Kind]; !found {
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return errors.Errorf("%q is not a valid Page Kind", v.Kind)
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}
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}
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v.Path = filepath.ToSlash(strings.ToLower(v.Path))
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return nil
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}
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