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Fixes gohugoio#5139
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| // 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 roles | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "sort" | ||
|
|
||
| "github.com/gohugoio/hugo/common/paths" | ||
| "github.com/gohugoio/hugo/config" | ||
| "github.com/gohugoio/hugo/hugofs/glob" | ||
| "github.com/mitchellh/mapstructure" | ||
| ) | ||
|
|
||
| type RoleConfig struct { | ||
| // Whether this role is the default role. | ||
| // This will be rendered in the root. | ||
| // There can only be one default role. | ||
| Default bool | ||
|
|
||
| // The weight of the role. | ||
| // Used to determine the order of the roles. | ||
| // If zero, we use the role name. | ||
| Weight int | ||
| } | ||
|
|
||
| type Role struct { | ||
| Name string | ||
| RoleConfig | ||
| } | ||
|
|
||
| type Roles struct { | ||
| roleConfigs map[string]RoleConfig | ||
| Sorted []Role | ||
| } | ||
|
|
||
| func (r Roles) IndexDefault() int { | ||
| for i, role := range r.Sorted { | ||
| if role.Default { | ||
| return i | ||
| } | ||
| } | ||
| panic("no default role found") | ||
| } | ||
|
|
||
| // IndexMatch returns the index of the first role that matches the given Glob pattern. | ||
| func (r Roles) IndexMatch(pattern string) (int, error) { | ||
| g, err := glob.GetGlob(pattern) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| for i, role := range r.Sorted { | ||
| if g.Match(role.Name) { | ||
| return i, nil | ||
| } | ||
| } | ||
| return -1, nil | ||
| } | ||
|
|
||
| func (r *Roles) init() error { | ||
| if len(r.roleConfigs) == 0 { | ||
| // Add a default role. | ||
| r.roleConfigs["guest"] = RoleConfig{Default: true} | ||
| } | ||
|
|
||
| var defaultSeen int | ||
| for k, v := range r.roleConfigs { | ||
| if k == "" { | ||
| return errors.New("role name cannot be empty") | ||
| } | ||
|
|
||
| if err := paths.ValidateIdentifier(k); err != nil { | ||
| // TODO1 config keys gets auto lowercased, so this will (almost) never happen. | ||
| // TODO1: Page.cloneForRole(role) | ||
| // TODO1: Tree store: linked list for dimension nodes. | ||
| return fmt.Errorf("role name %q is invalid: %s", k, err) | ||
| } | ||
|
|
||
| if v.Default { | ||
| defaultSeen++ | ||
| } | ||
|
|
||
| if defaultSeen > 1 { | ||
| return errors.New("only one role can be the default role") | ||
| } | ||
|
|
||
| r.Sorted = append(r.Sorted, Role{Name: k, RoleConfig: v}) | ||
| } | ||
|
|
||
| // Sort by weight if set, then by name. | ||
| sort.SliceStable(r.Sorted, func(i, j int) bool { | ||
| ri, rj := r.Sorted[i], r.Sorted[j] | ||
| if ri.Weight == rj.Weight { | ||
| return ri.Name < rj.Name | ||
| } | ||
| if rj.Weight == 0 { | ||
| return true | ||
| } | ||
| if ri.Weight == 0 { | ||
| return false | ||
| } | ||
| return ri.Weight < rj.Weight | ||
| }) | ||
|
|
||
| if defaultSeen == 0 { | ||
| // If no default role is set, we set the first one. | ||
| first := r.Sorted[0] | ||
| first.Default = true | ||
| r.roleConfigs[first.Name] = first.RoleConfig | ||
| r.Sorted[0] = first | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (r Roles) Has(role string) bool { | ||
| _, found := r.roleConfigs[role] | ||
| return found | ||
| } | ||
|
|
||
| func DecodeConfig(m map[string]any) (*config.ConfigNamespace[map[string]RoleConfig, Roles], error) { | ||
| return config.DecodeNamespace[map[string]RoleConfig](m, func(in any) (Roles, any, error) { | ||
| var roles Roles | ||
| var conf map[string]RoleConfig | ||
| if err := mapstructure.Decode(m, &conf); err != nil { | ||
| return roles, nil, err | ||
| } | ||
| roles.roleConfigs = conf | ||
| if err := roles.init(); err != nil { | ||
| return roles, nil, err | ||
| } | ||
| return roles, nil, nil | ||
| }) | ||
| } |
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