Static generation fixes (#292)

* add error handler for creating dist folder

* fix favicon in generated files

* add option for generating pages inside separate folders

* fix favicon problem

---------

Co-authored-by: Peter Savchenko <specc.dev@gmail.com>

src/backend/build-static.ts

@@ -13,6 +13,7 @@ import fse from 'fs-extra';
 import appConfig  from './utils/appConfig.js';
 import Aliases from './controllers/aliases.js';
 import Pages from './controllers/pages.js';
+import { downloadFavicon } from './utils/downloadFavicon.js';
 
 /**
  * Build static pages from database
@@ -54,7 +55,33 @@ export default async function buildStatic(): Promise<void> {
   const pagesOrder = await PagesOrder.getAll();
   const allPages = await Page.getAll();
 
-  await mkdirp(distPath);
+  try {
+    console.log('Create dist folder');
+    await mkdirp(distPath);
+  } catch (e) {
+    console.log('Error while creating dist folder', e);
+
+    return;
+  }
+
+  console.log('Copy public directory');
+  const publicDir = path.resolve(dirname, '../../public');
+
+  console.log(`Copy from ${publicDir} to ${distPath}`);
+
+  try {
+    await fse.copy(publicDir, distPath);
+    console.log('Public directory copied');
+  } catch (e) {
+    console.log('Error while copying public directory');
+    console.error(e);
+  }
+
+  const favicon = appConfig.favicon ? await downloadFavicon(appConfig.favicon, distPath, '') : {
+    destination: '/favicon.png',
+    type: 'image/png',
+  };
+
 
   /**
    * Renders single page
@@ -64,6 +91,11 @@ export default async function buildStatic(): Promise<void> {
    */
   async function renderPage(page: Page, isIndex?: boolean): Promise<void> {
     console.log(`Rendering page ${page.uri}`);
+    const pageUri = page.uri;
+
+    if (!pageUri) {
+      throw new Error('Page uri is not defined');
+    }
     const pageParent = await page.getParent();
     const pageId = page._id;
 
@@ -74,16 +106,30 @@ export default async function buildStatic(): Promise<void> {
     const previousPage = await PagesFlatArray.getPageBefore(pageId);
     const nextPage = await PagesFlatArray.getPageAfter(pageId);
     const menu = createMenuTree(parentIdOfRootPages, allPages, pagesOrder, 2);
+
     const result = await renderTemplate('./views/pages/page.twig', {
       page,
       pageParent,
       previousPage,
       nextPage,
       menu,
+      favicon,
       config: appConfig.frontend,
     });
 
-    const filename = (isIndex || page.uri === '') ? 'index.html' : `${page.uri}.html`;
+    let filename: string;
+
+    if (isIndex) {
+      filename = 'index.html';
+    } else if (config?.pagesInsideFolders) { // create folder for each page if pagesInsideFolders is true
+      const pagePath = path.resolve(distPath, pageUri);
+
+      await mkdirp(pagePath);
+
+      filename = path.resolve(pagePath, 'index.html');
+    } else {
+      filename = `${page.uri}.html`;
+    }
 
     await fs.writeFile(path.resolve(distPath, filename), result);
     console.log(`Page ${page.uri} rendered`);
@@ -119,19 +165,6 @@ export default async function buildStatic(): Promise<void> {
   }
   console.log('Static files built');
 
-  console.log('Copy public directory');
-  const publicDir = path.resolve(dirname, '../../public');
-
-  console.log(`Copy from ${publicDir} to ${distPath}`);
-
-  try {
-    await fse.copy(publicDir, distPath);
-    console.log('Public directory copied');
-  } catch (e) {
-    console.log('Error while copying public directory');
-    console.error(e);
-  }
-
   if (appConfig.uploads.driver === 'local') {
     console.log('Copy uploads directory');
     await fse.copy(path.resolve(cwd, appConfig.uploads.local.path), path.resolve(distPath, 'uploads'));

src/backend/utils/appConfig.ts

@@ -90,7 +90,10 @@ const FrontendConfig = z.object({
  */
 const StaticBuildConfig = z.object({
   outputDir: z.string(), // Output directory for static build
-  overwrite: z.boolean().optional().default(true),
+  overwrite: z.boolean().optional() // Overwrite output directory
+    .default(true),
+  pagesInsideFolders: z.boolean().optional() // Create separate folder for each page
+    .default(true),
   indexPage: z.object({
     enabled: z.boolean(), // Is index page enabled
     uri: z.string(), // Index page uri

src/backend/utils/downloadFavicon.ts

@@ -1,5 +1,5 @@
 import path from 'path';
-import fs from 'fs';
+import fs from 'fs/promises';
 import fetch, { RequestInit } from 'node-fetch';
 
 /**
@@ -32,9 +32,10 @@ function checkIsUrl(str: string): boolean {
  *
  * @param destination - url or path of favicon
  * @param faviconFolder - folder to save favicon
+ * @param subRoute - subroute from which the favicon will be served
  * @returns { Promise<FaviconData> } - Promise with data about favicon
  */
-export async function downloadFavicon(destination: string, faviconFolder: string): Promise<FaviconData> {
+export async function downloadFavicon(destination: string, faviconFolder: string, subRoute = '/favicon'): Promise<FaviconData> {
   // Check of destination is empty
   if (!destination) {
     throw Error('Favicon destination is empty');
@@ -48,8 +49,10 @@ export async function downloadFavicon(destination: string, faviconFolder: string
 
   // Check if string is url
   if (!checkIsUrl(destination)) {
+    await fs.copyFile(destination, path.join(faviconFolder, filename));
+
     return  {
-      destination: `/${filename}`,
+      destination: `${subRoute}/${filename}`,
       type: `image/${format}`,
     } as FaviconData;
   }
@@ -72,14 +75,10 @@ export async function downloadFavicon(destination: string, faviconFolder: string
   const filePath = path.join(faviconFolder, `favicon.${format}`);
 
   // Save file
-  await fs.writeFile(filePath, fileData, (err) => {
-    if (err) {
-      console.log(err);
-    }
-  });
+  await fs.writeFile(filePath, fileData);
 
   return {
-    destination: `/favicon/favicon.${format}`,
+    destination: `${subRoute}/favicon.${format}`,
     type: `image/${format}`,
   } as FaviconData;
 }