Moving from Vite default to Bun default

.github/workflows/ci.yml

@@ -68,14 +68,9 @@ jobs:
           password: postgres
           port: 5432
           postgres-version: 18
-      - uses: actions/setup-node@v6
+      - uses: oven-sh/setup-bun@v2
         with:
-          node-version: 24
-      - name: Enable Corepack (for yarn)
-        run: |
-          corepack enable
-          corepack prepare yarn@1.22.22 --activate
-          yarn --version
+          bun-version: latest
       - uses: crystal-lang/install-crystal@v1
         with:
           crystal: latest
@@ -110,14 +105,9 @@ jobs:
           password: postgres
           port: 5432
           postgres-version: 18
-      - uses: actions/setup-node@v6
+      - uses: oven-sh/setup-bun@v2
         with:
-          node-version: 24
-      - name: Enable Corepack (for yarn)
-        run: |
-          corepack enable
-          corepack prepare yarn@1.22.22 --activate
-          yarn --version
+          bun-version: latest
       - uses: crystal-lang/install-crystal@v1
         with:
           crystal: latest

src/browser_app_skeleton/package.json.ecr

@@ -7,15 +7,8 @@
     "modern-normalize": "^3.0.1"
   },
   "scripts": {
-    "heroku-postbuild": "yarn build",
-    "dev": "vite",
-    "build": "vite build",
-    "preview": "vite preview",
-    "watch": "vite build --watch"
-  },
-  "devDependencies": {
-    "vite": "^7.3.1",
-    "vite-plugin-compression": "^0.5.1",
-    "vite-plugin-dev-manifest": "^1.4.1"
+    "build": "bun lib/lucky/src/bun/bake.js",
+    "dev": "bun run build --dev",
+    "prod": "bun run build --prod"
   }
 }

src/browser_app_skeleton/src/components/shared/layout_head.cr.ecr

@@ -11,8 +11,12 @@ class Shared::LayoutHead < BaseComponent
       responsive_meta_tag
 
       # Development helper used with the `lucky watch` command.
-      # Reloads the browser when files are updated.
+      # Reloads the browser when Crystal files are updated.
       live_reload_connect_tag if LuckyEnv.development?
+
+      # Development helper used with the `bun run dev` command.
+      # Reloads the browser when asset files are updated.
+      bun_reload_connect_tag if LuckyEnv.development?
     end
   end
 end

src/browser_app_skeleton/src/css/app.css.ecr

@@ -8,8 +8,6 @@
 *
 *    @import "./variables/colors";
 *
-* Note: Vite automatically resolves imports from node_modules
-* https://stackoverflow.com/questions/39535760/what-does-a-tilde-in-a-css-url-do
 */
 
 @import 'modern-normalize/modern-normalize.css';

src/generators/web.cr

@@ -103,9 +103,8 @@ class LuckyCli::Generators::Web
       ignore_list.concat([
         "/public/js",
         "/public/css",
-        "/public/.vite",
         "/public/assets",
-        "/public/manifest.dev.json",
+        "/public/*manifest*.json",
         "/node_modules",
         "yarn-error.log",
       ])

src/lucky_cli/browser_src_template.cr

@@ -12,9 +12,6 @@ class BrowserSrcTemplate
 
   def template_folder
     LuckyTemplate.create_folder do |root_dir|
-      root_dir.add_file("vite.config.js") do |io|
-        ECR.embed("#{__DIR__}/../browser_app_skeleton/vite.config.js.ecr", io)
-      end
       root_dir.add_file("package.json") do |io|
         ECR.embed("#{__DIR__}/../browser_app_skeleton/package.json.ecr", io)
       end
@@ -30,7 +27,6 @@ class BrowserSrcTemplate
         public_dir.add_file("favicon.ico") do |io|
           ECR.embed("#{__DIR__}/../browser_app_skeleton/public/favicon.ico.ecr", io)
         end
-        # Vite generates its manifest automatically
         public_dir.add_file("robots.txt") do |io|
           ECR.embed("#{__DIR__}/../browser_app_skeleton/public/robots.txt.ecr", io)
         end

src/lucky_cli/wizard/web.cr

@@ -37,8 +37,8 @@ class LuckyCli::Wizard::Web
     Full (recommended for most apps)
 
      ● Great for server rendered HTML or Single Page Applications
-     ● Vite included for fast development and optimized builds
-     ● Setup to compile CSS and JavaScript
+     ● Use Bun for fast development and optimized builds
+     ● Setup to compile CSS and Javascript/Typescript
      ● Support for rendering HTML
 
     API

src/web_app_skeleton/Procfile.dev.ecr

@@ -3,5 +3,5 @@ system_check: crystal script/system_check.cr
 web: lucky watch
 <%- else -%>
 web: lucky watch --reload-browser
-assets: yarn dev
+assets: bun run dev
 <%- end -%>

src/web_app_skeleton/config/server.cr.ecr

@@ -21,9 +21,9 @@ Lucky::Server.configure do |settings|
     settings.port = Lucky::ServerSettings.port
   end
 
-  # Configure asset host for Vite
+  # Configure asset host
   if LuckyEnv.development?
-    # In development, Vite serves assets from its dev server
+    # In development, assets are served from the dev server
     settings.asset_host = ""
   elsif LuckyEnv.production?
     # In production, Lucky serves the built assets

src/web_app_skeleton/docker/dev_entrypoint.sh.ecr

@@ -28,8 +28,8 @@ if ! [ -d bin ] ; then
   mkdir bin
 fi
 <%- if browser? -%>
-echo 'Installing npm packages...'
-yarn install
+echo 'Installing bun packages...'
+bun install --no-progress
 <%- end -%>
 if ! shards check ; then
   echo 'Installing shards...'

src/web_app_skeleton/docker/development.dockerfile.ecr

@@ -2,31 +2,21 @@ FROM crystallang/crystal:<%= crystal_version %>
 
 # Install utilities required to make this Dockerfile run
 RUN apt-get update && \
-    apt-get install -y wget
-<%- if browser? -%>
-# Add the nodesource ppa to apt. Update this to change the nodejs version.
-RUN wget https://deb.nodesource.com/setup_16.x -O- | bash
+    apt-get install -y wget curl unzip
 
 # Apt installs:
-# - nodejs (from above ppa) is required for front-end apps.
 # - Postgres cli tools are required for lucky-cli.
-# - tmux is required for the Overmind process manager.
 RUN apt-get update && \
-    apt-get install -y nodejs postgresql-client tmux && \
+    apt-get install -y postgresql-client && \
     rm -rf /var/lib/apt/lists/*
 
-# NPM global installs:
-#  - Yarn is the default package manager for the node component of a lucky
+<%- if browser? -%>
+# Bun global installs:
+#  - Bun is the default package manager for the asset component of a lucky
 #    browser app.
-RUN npm install -g yarn
-<%- else -%>
-
-# Apt installs:
-# - Postgres cli tools are required for lucky-cli.
-# - tmux is required for the Overmind process manager.
-RUN apt-get update && \
-    apt-get install -y postgresql-client tmux && \
-    rm -rf /var/lib/apt/lists/*
+RUN curl -fsSL https://bun.sh/install | bash
+ENV BUN_INSTALL="/root/.bun"
+ENV PATH="$BUN_INSTALL/bin:$PATH"
 <%- end -%>
 
 # Install lucky cli
@@ -40,4 +30,3 @@ WORKDIR /app
 ENV DATABASE_URL=postgres://postgres:postgres@host.docker.internal:5432/postgres
 EXPOSE 3000
 EXPOSE 3001
-

src/web_app_skeleton/script/setup.cr.ecr

@@ -6,19 +6,21 @@ require "./system_check"
 
 print_done
 
+notice "Installing shards"
+run_command "shards", "install"
+
+print_done
+
 <%- if browser? -%>
-notice "Installing node dependencies"
-run_command "yarn", "install", "--no-progress"
+notice "Installing Bun dependencies"
+run_command "bun", "install", "--no-progress"
 
 notice "Building initial asset manifest"
-run_command "yarn", "build"
+run_command "bun", "run", "build"
 
 print_done
 <%- end -%>
 
-notice "Installing shards"
-run_command "shards", "install"
-
 if !File.exists?(".env")
   notice "No .env found. Creating one."
   File.touch ".env"
@@ -34,4 +36,4 @@ run_command "lucky", "db.seed.required_data"
 run_command "lucky", "db.seed.sample_data"
 
 print_done
-notice "Run 'lucky dev' to start the app"
+notice "Run 'lucky dev' to start the app"

src/web_app_skeleton/script/system_check.cr.ecr

@@ -11,8 +11,8 @@ require "./helpers/*"
 #     should go in your Procfile.dev.
 
 <%- if browser? -%>
-if command_not_found "yarn"
-  print_error "Yarn is not installed\n  See https://yarnpkg.com/lang/en/docs/install/ for install instructions."
+if command_not_found "bun"
+  print_error "Bun is not installed\n  See https://bun.sh/ for install instructions."
 end
 <%- end -%>
 

src/web_app_skeleton/src/app.cr.ecr

@@ -2,19 +2,7 @@ require "./shards"
 
 <%- if browser? -%>
 # Load the asset manifest
-# In development, vite-plugin-dev-manifest creates public/manifest.dev.json
-# In production, Vite creates public/.vite/manifest.json
-# The manifest path is determined by which file exists at compile time
-{% if file_exists?("public/manifest.dev.json") %}
-  Lucky::AssetHelpers.load_manifest "public/manifest.dev.json", use_vite: true
-{% elsif file_exists?("public/.vite/manifest.json") %}
-  Lucky::AssetHelpers.load_manifest "public/.vite/manifest.json", use_vite: true
-{% else %}
-  # For initial compilation, we'll assume development mode
-  # The dev server will create the manifest before the app is recompiled
-  Lucky::AssetHelpers.load_manifest "public/manifest.dev.json", use_vite: true
-{% end %}
-
+Lucky::AssetHelpers.load_manifest(from: :bun)
 <%- end -%>
 require "../config/server"
 require "./app_database"