jmove/README.md
loki5512344 6f7a2190e6
feat: directory moves — mirrored batch relocation of every indexed file under a dir
- MovePlan gains moves[] (file move = 1 relocation), left_behind[] for
  unindexable files that deliberately stay, prune_dirs[] applied after the
  batch (remove_dir only succeeds when empty, leftovers keep their home)
- plan::dir: nesting/target-exists guards, merged per-file rewrites
- apply: atomic N-rename batch (per-file git mv), rollback restores every
  move, rewrite and created dir newest-first
- mv_reject accepts dirs; --json adds moved_files/would_move_files only for
  real dir moves (single-file contract byte-identical); summary shows
  (N files) and left-behind count
- engine rollback/prune tests moved to tests/apply.rs (public API; a
  mid-batch failure cannot be forced through the CLI), java-rule e2e split
  into its own binary to keep every file under the 250-line budget
2026-09-15 18:30:33 +02:00

92 lines
3 KiB
Markdown

# jmove
**Move source files. Keep every import intact.**
`jmove` is a fast, single-binary CLI that moves/renames source files in a
project and rewrites all import statements that reference them — no IDE,
no language server, no runtime dependencies. Built for humans *and* AI
agents.
## Why
`git mv` moves the file but breaks every relative import pointing at it.
IDE renames fix imports but need an IDE. Existing CLI alternatives either
shell out to heavy language servers (bun/ts-morph, Rope, gopls,
rust-analyzer) or refuse to preview what they will change.
jmove's answer:
- **Dry-run + unified diff** — see every change before it hits disk.
- **Atomic apply with rollback** — imports are rewritten first, the file
moves last; any failure restores everything.
- **AI-agent mode** — `--json` everywhere, stable error codes, exit codes,
and a machine-readable skill doc (`docs/SKILL.md`).
- **Pure Rust, one binary** — no external toolchains to install.
- **Java support** — the package/directory coupling nobody else automates
outside IntelliJ.
## Install
```sh
# From a clone of this repo (installs `jmove` into ~/.cargo/bin, on PATH):
cargo install --path . --locked
# Latest published version (once jmove is on crates.io — not yet published):
cargo install jmove
```
Use as a library (the CLI and the engine are separate targets; `jmove::core`
holds indexing/planning/apply, `jmove::parser` the language frontends):
```toml
[dependencies]
jmove = { git = "https://github.com/loki5512344/jmove" }
# or, for a local checkout: jmove = { path = "../jmove" }
```
## Usage
```sh
# Preview what a move would change
jmove mv src/utils/parser.ts src/core/parser.ts --dry-run
# Apply it
jmove mv src/utils/parser.ts src/core/parser.ts
# Inside a git repo a tracked file moves via `git mv` (staged, history kept);
# --no-git forces a plain rename
jmove mv src/foo.ts src/bar/foo.ts --no-git
# Move a whole directory: every file relocates, every importer follows
jmove mv src/utils src/helpers
# Java: jmove updates `package`, all `import`s and moves the file
jmove mv src/com/example/utils/Parser.java src/com/example/core/Parser.java
# Find broken imports (exit code 2 if any)
jmove check
# Auto-repair import problems (unused + missing imports today) — same dry-run/atomic engine
jmove fix --dry-run
jmove fix
# AI-agent workflow
jmove mv src/foo.ts src/bar/foo.ts --dry-run --json
jmove mv src/foo.ts src/bar/foo.ts --json
jmove check --json
```
See [docs/EXAMPLES.md](docs/EXAMPLES.md) for more, and
[docs/SKILL.md](docs/SKILL.md) if you are an AI agent.
## Roadmap
TypeScript/JavaScript and Java (the open niche) are in — real-world tested
on `google/guava`. `fix` auto-repairs small breakages on the same
dry-run/atomic engine (Java: unused, missing and
misordered imports; TS: unused imports), then Python, Go. `split` (automatic file decomposition) is
planned — no tool does it. Full plan: [docs/PLAN.md](docs/PLAN.md).
## License
GPL-3.0-only. See [LICENSE](LICENSE).