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generate.go
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generate.go
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package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"strings"
"text/template"
"github.com/Masterminds/sprig"
)
const repoRoot = "../../../"
const editBasePath = "https://github.com/lyft/clutch/edit/main/docs/"
type templateData struct {
Middleware []*Component
Modules []*Component
Resolvers []*Component
Services []*Component
WorkflowPackages []*WorkflowPackage
EditURL string
}
var funcMap = sprig.TxtFuncMap()
func generate(source, dest string, td *templateData) error {
t := template.New(filepath.Base(source))
t = t.Funcs(funcMap)
td.EditURL = fmt.Sprintf("custom_edit_url: %s", strings.Replace(source, "../../", editBasePath, 1))
if _, err := t.ParseFiles(source); err != nil {
return err
}
fh, err := os.Create(dest)
if err != nil {
return err
}
if err := t.Execute(fh, td); err != nil {
return err
}
return nil
}
func getFiles(root, extension string) ([]string, error) {
var files []string
err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
relpath, err := filepath.Rel(root, path)
if err != nil {
return err
}
if !strings.HasSuffix(relpath, extension) || strings.HasPrefix(relpath, "_website") || strings.HasPrefix(relpath, "README") || info.IsDir() {
// Exclude directories or website dir.
return nil
}
files = append(files, path)
return nil
})
if err != nil {
return nil, err
}
return files, nil
}
func getTemplateData() *templateData {
td := &templateData{}
// Backend.
files, err := getFiles(filepath.Join(repoRoot, "backend"), ".go")
if err != nil {
log.Fatal(err)
}
for _, file := range files {
if c, ok := getClutchComponentFromFile(file); ok {
switch c.Type {
case "service":
td.Services = append(td.Services, c)
case "module":
td.Modules = append(td.Modules, c)
case "middleware":
td.Middleware = append(td.Middleware, c)
case "resolver":
td.Resolvers = append(td.Resolvers, c)
}
}
}
// Frontend.
files, err = getFiles(filepath.Join(repoRoot, "frontend/workflows"), "package.json")
if err != nil {
log.Fatal(err)
}
for _, file := range files {
if strings.Contains(file, "node_modules") {
// ignore sub packages from builds.
continue
}
w := getWorkflowPackage(file)
td.WorkflowPackages = append(td.WorkflowPackages, w)
}
return td
}
func main() {
docsRoot := "../../"
destRoot := filepath.Join(docsRoot, "_website/generated/docs")
// Delete any old files.
subdirs, _ := ioutil.ReadDir(destRoot)
for _, f := range subdirs {
if err := os.RemoveAll(filepath.Join(destRoot, f.Name())); err != nil {
log.Fatal(err)
}
}
// Parse protos and register funcs to map.
ps, err := newProtoScope(filepath.Join(repoRoot, "api"))
if err != nil {
log.Fatal(err)
}
funcMap["simpleProtoYAML"] = ps.getSimpleMessageYAML
// Get template data.
td := getTemplateData()
// Get all files to be interpolated and generated.
files, err := getFiles(docsRoot, ".md")
if err != nil {
log.Fatal(err)
}
for _, f := range files {
relpath, _ := filepath.Rel(docsRoot, f)
dest := filepath.Join(destRoot, relpath)
// Make directory if it doesn't exist.
if err := os.MkdirAll(filepath.Dir(dest), 0755); err != nil {
log.Fatal(err)
}
fmt.Println(f)
if err := generate(f, dest, td); err != nil {
log.Fatal(err)
}
}
}