generate the sidebar (#3414) (#6192)

* generate the sidebar

* put back accidentally deleted lines

* whitespace

* empty commit

Signed-off-by: Modular Magician <[email protected]>

.changelog/3414.txt

@@ -0,0 +1,3 @@
+```release-note:none
+* This release includes website changes to put data sources and resources in submenus in t he products they're part of.
+```

scripts/sidebar/sidebar.go

@@ -0,0 +1,112 @@
+//go:generate go run sidebar.go
+package main
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"strings"
+	"text/template"
+)
+
+type Entry struct {
+	Filename string
+	Product  string
+	Resource string
+}
+
+type Entries struct {
+	Resources   []Entry
+	DataSources []Entry
+}
+
+func main() {
+	_, scriptPath, _, ok := runtime.Caller(0)
+	if !ok {
+		log.Fatal("Could not get current working directory")
+	}
+	tpgDir := scriptPath
+	for !strings.HasPrefix(filepath.Base(tpgDir), "terraform-provider-") && tpgDir != "/" {
+		tpgDir = filepath.Clean(tpgDir + "/..")
+	}
+	if tpgDir == "/" {
+		log.Fatal("Script was run outside of google provider directory")
+	}
+
+	resourcesByProduct, err := entriesByProduct(tpgDir + "/website/docs/r")
+	if err != nil {
+		panic(err)
+	}
+	dataSourcesByProduct, err := entriesByProduct(tpgDir + "/website/docs/d")
+	if err != nil {
+		panic(err)
+	}
+	allEntriesByProduct := make(map[string]Entries)
+	for p, e := range resourcesByProduct {
+		v := allEntriesByProduct[p]
+		v.Resources = e
+		allEntriesByProduct[p] = v
+	}
+	for p, e := range dataSourcesByProduct {
+		v := allEntriesByProduct[p]
+		v.DataSources = e
+		allEntriesByProduct[p] = v
+	}
+
+	tmpl, err := template.ParseFiles(tpgDir + "/website/google.erb.tmpl")
+	if err != nil {
+		panic(err)
+	}
+	f, err := os.Create(tpgDir + "/website/google.erb")
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+	err = tmpl.Execute(f, allEntriesByProduct)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func entriesByProduct(dir string) (map[string][]Entry, error) {
+	d, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	entriesByProduct := make(map[string][]Entry)
+	for _, f := range d {
+		entry, err := getEntry(dir, f.Name())
+		if err != nil {
+			return nil, err
+		}
+		entriesByProduct[entry.Product] = append(entriesByProduct[entry.Product], entry)
+	}
+
+	return entriesByProduct, nil
+}
+
+func getEntry(dir, filename string) (Entry, error) {
+	file, err := ioutil.ReadFile(dir + "/" + filename)
+	if err != nil {
+		return Entry{}, err
+	}
+
+	return Entry{
+		Filename: strings.TrimSuffix(filename, ".markdown"),
+		Product:  findRegex(file, `subcategory: "(.*)"`),
+		Resource: findRegex(file, `page_title: "Google: (.*)"`),
+	}, nil
+}
+
+func findRegex(contents []byte, regex string) string {
+	r := regexp.MustCompile(regex)
+	sm := r.FindStringSubmatch(string(contents))
+	if len(sm) > 1 {
+		return sm[1]
+	}
+	return ""
+}