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// Copyright 2019 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 config
import (
"sort"
"strings"
"sync"
"github.com/gohugoio/hugo/common/types"
"github.com/gobwas/glob"
"github.com/gohugoio/hugo/common/herrors"
"github.com/mitchellh/mapstructure"
"github.com/spf13/cast"
jww "github.com/spf13/jwalterweatherman"
)
var DefaultBuild = Build{
UseResourceCacheWhen: "fallback",
WriteStats: false,
}
// Build holds some build related condfiguration.
type Build struct {
UseResourceCacheWhen string // never, fallback, always. Default is fallback
// When enabled, will collect and write a hugo_stats.json with some build
// related aggregated data (e.g. CSS class names).
WriteStats bool
}
func (b Build) UseResourceCache(err error) bool {
if b.UseResourceCacheWhen == "never" {
return false
}
if b.UseResourceCacheWhen == "fallback" {
return err == herrors.ErrFeatureNotAvailable
}
return true
}
func DecodeBuild(cfg Provider) Build {
m := cfg.GetStringMap("build")
b := DefaultBuild
if m == nil {
return b
}
err := mapstructure.WeakDecode(m, &b)
if err != nil {
return DefaultBuild
}
b.UseResourceCacheWhen = strings.ToLower(b.UseResourceCacheWhen)
when := b.UseResourceCacheWhen
if when != "never" && when != "always" && when != "fallback" {
b.UseResourceCacheWhen = "fallback"
}
return b
}
// Sitemap configures the sitemap to be generated.
type Sitemap struct {
ChangeFreq string
Priority float64
Filename string
}
func DecodeSitemap(prototype Sitemap, input map[string]interface{}) Sitemap {
for key, value := range input {
switch key {
case "changefreq":
prototype.ChangeFreq = cast.ToString(value)
case "priority":
prototype.Priority = cast.ToFloat64(value)
case "filename":
prototype.Filename = cast.ToString(value)
default:
jww.WARN.Printf("Unknown Sitemap field: %s\n", key)
}
}
return prototype
}
// Config for the dev server.
type Server struct {
Headers []Headers
compiledInit sync.Once
compiled []glob.Glob
}
func (s *Server) Match(pattern string) []types.KeyValueStr {
s.compiledInit.Do(func() {
for _, h := range s.Headers {
s.compiled = append(s.compiled, glob.MustCompile(h.For))
}
})
if s.compiled == nil {
return nil
}
var matches []types.KeyValueStr
for i, g := range s.compiled {
if g.Match(pattern) {
h := s.Headers[i]
for k, v := range h.Values {
matches = append(matches, types.KeyValueStr{Key: k, Value: cast.ToString(v)})
}
}
}
sort.Slice(matches, func(i, j int) bool {
return matches[i].Key < matches[j].Key
})
return matches
}
type Headers struct {
For string
Values map[string]interface{}
}
func DecodeServer(cfg Provider) *Server {
m := cfg.GetStringMap("server")
s := &Server{}
if m == nil {
return s
}
_ = mapstructure.WeakDecode(m, s)
return s
}
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