mirror of https://github.com/gohugoio/hugo
115 lines
2.7 KiB
Go
115 lines
2.7 KiB
Go
// Copyright 2019 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_generate
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"reflect"
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"github.com/gohugoio/hugo/codegen"
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"github.com/gohugoio/hugo/resources/page"
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)
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const header = `// Copyright 2019 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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// This file is autogenerated.
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`
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var (
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pageInterface = reflect.TypeOf((*page.PageMetaProvider)(nil)).Elem()
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packageDir = filepath.FromSlash("resources/page")
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)
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func Generate(c *codegen.Inspector) error {
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if err := generateMarshalJSON(c); err != nil {
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return fmt.Errorf("failed to generate JSON marshaler: %w", err)
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}
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return nil
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}
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func generateMarshalJSON(c *codegen.Inspector) error {
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filename := filepath.Join(c.ProjectRootDir, packageDir, "page_marshaljson.autogen.go")
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f, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer f.Close()
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includes := []reflect.Type{pageInterface}
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excludes := []reflect.Type{}
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methods := c.MethodsFromTypes(
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includes,
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excludes)
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if len(methods) == 0 {
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return errors.New("no methods found")
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}
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marshalJSON, pkgImports := methods.ToMarshalJSON(
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"Page",
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"github.com/gohugoio/hugo/resources/page",
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// Exclusion regexps. Matches method names.
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`\bPage\b`,
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)
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fmt.Fprintf(f, `%s
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package page
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%s
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%s
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`, header, importsString(pkgImports), marshalJSON)
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return nil
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}
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func importsString(imps []string) string {
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if len(imps) == 0 {
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return ""
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}
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if len(imps) == 1 {
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return fmt.Sprintf("import %q", imps[0])
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}
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impsStr := "import (\n"
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for _, imp := range imps {
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impsStr += fmt.Sprintf("%q\n", imp)
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}
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return impsStr + ")"
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}
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