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// Copyright 2020 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 js provides functions for building JavaScript resources
package js
import (
"errors"
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/resources"
"github.com/gohugoio/hugo/resources/resource"
"github.com/gohugoio/hugo/resources/resource_transformers/babel"
"github.com/gohugoio/hugo/resources/resource_transformers/js"
"github.com/gohugoio/hugo/tpl/internal/resourcehelpers"
)
// New returns a new instance of the js-namespaced template functions.
func New(deps *deps.Deps) *Namespace {
if deps.ResourceSpec == nil {
return &Namespace{}
}
return &Namespace{
client: js.New(deps.BaseFs.Assets, deps.ResourceSpec),
babelClient: babel.New(deps.ResourceSpec),
}
}
// Namespace provides template functions for the "js" namespace.
type Namespace struct {
client *js.Client
babelClient *babel.Client
}
// Build processes the given Resource with ESBuild.
func (ns *Namespace) Build(args ...any) (resource.Resource, error) {
var (
r resources.ResourceTransformer
m map[string]any
targetPath string
err error
ok bool
)
r, targetPath, ok = resourcehelpers.ResolveIfFirstArgIsString(args)
if !ok {
r, m, err = resourcehelpers.ResolveArgs(args)
if err != nil {
return nil, err
}
}
if targetPath != "" {
m = map[string]any{"targetPath": targetPath}
}
return ns.client.Process(r, m)
}
// Babel processes the given Resource with Babel.
func (ns *Namespace) Babel(args ...any) (resource.Resource, error) {
if len(args) > 2 {
return nil, errors.New("must not provide more arguments than resource object and options")
}
r, m, err := resourcehelpers.ResolveArgs(args)
if err != nil {
return nil, err
}
var options babel.Options
if m != nil {
options, err = babel.DecodeOptions(m)
if err != nil {
return nil, err
}
}
return ns.babelClient.Process(r, options)
}
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