Bun / SvelteKit support

* don't install node to make build work, instead use --bun
* only copy build directory, and run ./build/index.js

gdf.js

@@ -128,6 +128,10 @@ export class GDF {
     return this.astro && !this.astroSSR
   }
 
+  get svelte() {
+    return !!(this.#pj.devDependencies?.['@sveltejs/kit'])
+  }
+
   get vite() {
     return !!(this.#pj.scripts?.dev === 'vite')
   }
@@ -240,8 +244,6 @@ export class GDF {
 
     if (!this.bun) {
       packages.push('node-gyp')
-    } else if (this.bunNode) {
-      packages.push('ca-certificates', 'curl')
     }
 
     // https://docs.npmjs.com/cli/v10/configuring-npm/package-json#git-urls-as-dependencies
@@ -269,8 +271,8 @@ export class GDF {
 
     const build = this.#pj.scripts?.build
 
-    if (build && fs.existsSync(`node_modules/.bin/${build.split(' ')[0]}`)) {
-      const script = fs.readFileSync(`node_modules/.bin/${build.split(' ')[0]}`, 'utf-8')
+    if (build && fs.existsSync(path.join(this._appdir, `node_modules/.bin/${build.split(' ')[0]}`))) {
+      const script = fs.readFileSync(path.join(this._appdir, `node_modules/.bin/${build.split(' ')[0]}`), 'utf-8')
       return /^#!.*node/.test(script)
     }
 
@@ -662,7 +664,13 @@ export class GDF {
   // Is there a build script?
   get build() {
     if (this.options.build) return this.options.build
-    if (this.#pj.scripts?.build) return `${this.packager} run build`
+    if (this.#pj.scripts?.build) {
+      if (this.packager === 'bun' && this.bunNode) {
+        return 'bun --bun run build'
+      } else {
+        return `${this.packager} run build`
+      }
+    }
   }
 
   // Descriptive form of detected runtime
@@ -731,6 +739,8 @@ export class GDF {
       return [this.packager === 'bun' ? 'bun' : 'node', this.#pj.module]
     } else if (this.#pj.main) {
       return [this.packager === 'bun' ? 'bun' : 'node', this.#pj.main]
+    } else if (this.svelte) {
+      return ['bun', './build/index.js']
     } else if (this.packager === 'bun') {
       return ['bun', 'index.ts']
     } else {

templates/Dockerfile.ejs

@@ -72,12 +72,6 @@ RUN <% if (options.cache) { %><%= pkg_cache %>
     <% } %><%= pkg_update %> && \
     <%= pkg_install %> <%= buildPackages.join(' ') %>
 
-<% if (bunNode) { -%>
-# Install Node.js
-RUN curl -fsSL https://deb.nodesource.com/setup_<%= nodeVersion.split('.')[0] %>.x | bash - && \
-    apt-get install -y nodejs
-
-<% } -%>
 # Install node modules
 COPY<% if (options.link) { %> --link<% } %> <%= packageFiles.join(' ') %> ./
 RUN <%- buildCache %><%= packagerInstall %>
@@ -146,6 +140,8 @@ COPY --from=build /app/dist /app/dist
 
 ENV PORT=4321
 ENV HOST=0.0.0.0
+<% } else if (svelte) { -%>
+COPY --from=build /app/build /app/build
 <% } else { -%>
 COPY --from=build /app /app
 <% } -%>

test/frameworks/svelte-bun/.dockerignore

@@ -0,0 +1,6 @@
+/.git
+/node_modules
+.dockerignore
+.env
+Dockerfile
+fly.toml

test/frameworks/svelte-bun/Dockerfile

@@ -0,0 +1,46 @@
+# syntax = docker/dockerfile:1
+
+# Adjust BUN_VERSION as desired
+ARG BUN_VERSION=xxx
+FROM oven/bun:${BUN_VERSION}-slim as base
+
+LABEL fly_launch_runtime="Bun"
+
+# Bun app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+
+
+# Throw-away build stage to reduce size of final image
+FROM base as build
+
+# Install packages needed to build node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential pkg-config python-is-python3
+
+# Install node modules
+COPY --link bun.lockb package.json ./
+RUN bun install
+
+# Copy application code
+COPY --link . .
+
+# Build application
+RUN bun --bun run build
+
+# Remove development dependencies
+RUN rm -rf node_modules && \
+    bun install --ci
+
+
+# Final stage for app image
+FROM base
+
+# Copy built application
+COPY --from=build /app/build /app/build
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD [ "bun", "./build/index.js" ]

test/frameworks/svelte-bun/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "my-app",
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "vite dev",
+    "build": "vite build",
+    "preview": "vite preview",
+    "check": "svelte-kit sync && svelte-check --tsconfig ./jsconfig.json",
+    "check:watch": "svelte-kit sync && svelte-check --tsconfig ./jsconfig.json --watch"
+  },
+  "devDependencies": {
+    "@flydotio/dockerfile": "^0.5.4",
+    "@fontsource/fira-mono": "^4.5.10",
+    "@neoconfetti/svelte": "^1.0.0",
+    "@sveltejs/adapter-auto": "^3.0.0",
+    "@sveltejs/kit": "^2.0.0",
+    "@sveltejs/vite-plugin-svelte": "^3.0.0",
+    "svelte": "^4.2.7",
+    "svelte-adapter-bun": "^0.5.2",
+    "svelte-check": "^3.6.0",
+    "typescript": "^5.0.0",
+    "vite": "^5.0.3"
+  },
+  "type": "module"
+}