mirror of https://github.com/pulumi/pulumi.git
134 lines
3.8 KiB
Go
134 lines
3.8 KiB
Go
//go:build ignore
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// +build ignore
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// Copyright 2016-2020, Pulumi Corporation.
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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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//
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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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// Pulling out some of the repeated strings tokens into constants would harm readability, so we just ignore the
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// goconst linter's warning.
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//
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// nolint: lll, goconst
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package main
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import (
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"bytes"
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"fmt"
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"go/format"
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"io/ioutil"
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"log"
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"os"
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"strings"
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"text/template"
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)
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const (
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basePath = "."
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docsTemplatesPath = basePath + "/templates"
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generatedFileName = basePath + "/packaged.go"
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)
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var conv = map[string]interface{}{"conv": fmtByteSlice}
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var tmpl = template.Must(template.New("").Funcs(conv).Parse(`
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// AUTO-GENERATED FILE! DO NOT EDIT THIS FILE MANUALLY.
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// Copyright 2016-2020, Pulumi Corporation.
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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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//
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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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// Pulling out some of the repeated strings tokens into constants would harm readability, so we just ignore the
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// goconst linter's warning.
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//
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// nolint: lll, goconst
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package docs
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func init() {
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packagedTemplates = make(map[string][]byte)
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{{ range $key, $value := . }}
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packagedTemplates["{{ $key }}"] = []byte{ {{ conv $value }} }
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{{ println }}
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{{- end }}
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}
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`))
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// fmtByteSlice returns a formatted byte string for a given slice of bytes.
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// We embed the raw bytes to avoid any formatting errors that can occur due to saving
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// raw strings in a file.
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func fmtByteSlice(s []byte) string {
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builder := strings.Builder{}
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for _, v := range s {
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builder.WriteString(fmt.Sprintf("%d,", int(v)))
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}
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return builder.String()
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}
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// main reads files under the templates directory, and builds a map of filename to byte slice.
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// Each file's contents are then written to a generated file.
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//
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// NOTE: Sub-directories are currently not supported.
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func main() {
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files, err := ioutil.ReadDir(docsTemplatesPath)
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if err != nil {
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log.Fatalf("Error reading the templates dir: %v", err)
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}
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contents := make(map[string][]byte)
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for _, f := range files {
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if f.IsDir() {
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fmt.Printf("%q is a dir. Skipping...\n", f.Name())
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}
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b, err := ioutil.ReadFile(docsTemplatesPath + "/" + f.Name())
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if err != nil {
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log.Fatalf("Error reading file %s: %v", f.Name(), err)
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}
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if len(b) == 0 {
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fmt.Printf("%q is empty. Skipping...\n", f.Name())
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continue
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}
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contents[f.Name()] = b
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}
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// We overwrite the file every time the `go generate ...` command is run.
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f, err := os.Create(generatedFileName)
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if err != nil {
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log.Fatal("Error creating blob file:", err)
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}
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defer f.Close()
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builder := &bytes.Buffer{}
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if err = tmpl.Execute(builder, contents); err != nil {
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log.Fatal("Error executing template", err)
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}
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data, err := format.Source(builder.Bytes())
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if err != nil {
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log.Fatal("Error formatting generated code", err)
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}
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if err = ioutil.WriteFile(generatedFileName, data, os.ModePerm); err != nil {
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log.Fatal("Error writing file", err)
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}
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}
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