[Bug]: file name formats like "[hash:2]/[hash:21]" makes rolldown panic #4017
Description
Reproduction link or steps
I wanted a short prefix apt for blob stores to be a bit more browsable (e.g. when looking for a specific file for whatever reason) but using hash twice doesn't seem to be supported.
What is expected?
I would expect "[hash:2]/[hash:21]" to turn into "ab/abcdef…"
What is actually happening?
Panic:
thread 'tokio-runtime-worker' panicked at crates/rolldown_utils/src/hash_placeholder.rs:97:5:
seed is too large
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
✗ Build failed in 3.29s
error during build:
seed is too large
Error: seed is too large
System Info
System:
OS: macOS 15.3.2
CPU: (16) arm64 Apple M3 Max
Memory: 1.52 GB / 128.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 23.10.0 - /opt/homebrew/bin/node
npm: 10.9.2 - /opt/homebrew/bin/npm
bun: 1.2.5 - ~/.bun/bin/bun
Browsers:
Chrome: 134.0.6998.166
Firefox Nightly: 135.0
Safari: 18.3.1Any additional comments?
This was the config:
const hashOutputFileNames = {
assetFileNames: "[hash:2]/[hash:21].[ext]",
chunkFileNames: "[hash:2]/[hash:21].js",
entryFileNames: "[hash:2]/[hash:21].js",
};
export default defineConfig({
plugins: [react(), tailwindcss()],
base: "/s/",
build: {
// Use references from source code instead to ensure we use content hashing.
copyPublicDir: false,
// Make sure all files become content hashed.
rollupOptions: {
output: hashOutputFileNames,
},
},
worker: {
rollupOptions: {
output: hashOutputFileNames,
},
},
test: {
globals: true,
environment: "jsdom",
include: ["**/*.{test,spec}.{ts,tsx}"],
},
});