# cure-cli
[](https://crates.io/crates/cure-cli)
[](https://github.com/ejfkdev/cure/actions/workflows/ci.yml)
[](https://github.com/ejfkdev/cure/blob/main/LICENSE)
`cure` — the command-line front end of the
[cure](https://github.com/ejfkdev/cure) simplification engine: a
fault-tolerant, semantic-preserving code simplifier/formatter that turns
decompiled code back into something a human would have written. The CLI is
language-agnostic (**Java and TypeScript/JavaScript are the backends
implemented today**) — a new
language registers in `LANG_BACKENDS` (extensions + pipeline function) and
inherits traversal, parallelism, `--check`/`--diff`/`--stats`, and the
cross-platform batched I/O for free.
```bash
cargo install cure-cli
```
```bash
# int m() {
# return foo();
# }
# }
# console.log(3);
```
Highlights:
- **Fault-tolerant** — parse errors never abort a run; broken regions are
preserved verbatim while everything around them is simplified
(`--strict` turns them into an error exit for CI).
- **Directory mode** — recursive, parallel (dynamic work queue, threads =
CPU cores × 1.5), mirrors the tree into `<dir>-cure-out/`; the 371,674-file OpenJDK
corpus (4.70 GB) in ~15 s / ~430 MiB peak RSS on an 18-core laptop
(`--check`), 0 failures.
- **Cross-platform batch I/O** — optional Linux `io_uring` backend
(`--features io-uring`; read syscalls 6,977 → 10 on a 3,483-file trace);
macOS/Windows thread pool. Default build: zero runtime dependencies.
- Dry runs (`--check`), diffs (`--diff`), stats (`--stats`/`--report`),
rule toggles (`--disable`), in-place mode (`-w`), thread control (`-j`).
- **Simplification-quality metrics** (`--stats`): AST nodes, decision
points, max nesting — before vs. after. Untouched by formatting, they
separate real simplification from reformatting; per-file classification
(structurally simplified / format-only / untouched) surfaces files no
rule reached.
Full documentation — rule catalog, verification methodology, performance
notes, and the 中文版 — in the
[repository README](https://github.com/ejfkdev/cure).
License: MIT.