carwash 0.4: polyglot rewrite

.github/workflows/ci.yml

@@ -2,65 +2,56 @@ name: CI
 
 on:
   push:
-    branches: [ main, develop ]
+    branches: [main]
   pull_request:
-    branches: [ main, develop ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 env:
   CARGO_TERM_COLOR: always
-  RUST_BACKTRACE: 1
+  RUSTFLAGS: -D warnings
 
 jobs:
-  test:
-    name: Test
+  lint:
+    name: Format and Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
-
-      - name: Cache cargo registry
-        uses: actions/cache@v4
-        with:
-          path: ~/.cargo/registry
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Cache cargo index
-        uses: actions/cache@v4
+      - uses: actions/checkout@v5
+      - uses: dtolnay/rust-toolchain@stable
         with:
-          path: ~/.cargo/git
-          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Cache target directory
-        uses: actions/cache@v4
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Run tests
-        run: cargo test --verbose
-
-      - name: Run clippy
-        run: cargo clippy --all-targets --all-features -- -D warnings
-
-      - name: Check formatting
-        run: cargo fmt -- --check
+          components: rustfmt, clippy
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo fmt --all -- --check
+      - run: cargo clippy --workspace --all-targets --locked
+      - run: cargo doc --workspace --no-deps --locked
 
-  build:
-    name: Build
+  test:
+    name: Test (${{ matrix.os }})
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/checkout@v4
-
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
-
-      - name: Build release
-        run: cargo build --release --verbose
-
-      - name: Run basic smoke test
-        run: cargo run --release -- --help
+      - uses: actions/checkout@v5
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo test --workspace --locked
+
+  msrv:
+    name: MSRV (1.88)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: dtolnay/rust-toolchain@1.88
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo check --workspace --all-targets --locked
+
+  deny:
+    name: Advisories and licenses
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: EmbarkStudios/cargo-deny-action@v2

.gitignore

@@ -23,3 +23,4 @@ Thumbs.db
 # Development notes
 *.md
 !README.md
+.claude/

CHANGELOG.md

@@ -5,6 +5,45 @@ All notable changes to CarWash will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - 2026-09-25
+
+A rewrite. carwash is no longer a Rust project manager: it reclaims disk space across projects
+in any of 40 ecosystems, and checks dependencies and runs tasks along the way. Nothing from 0.3
+carries over, including the configuration file.
+
+### Added
+- Engine crate `carwash-core`, independent of the UI: parallel discovery driven by declarative
+  ecosystem rules, content detection (`CACHEDIR.TAG`, virtualenvs, conda, CMake and Meson build
+  trees, orphaned Cargo targets), workspace and enclosing-project awareness.
+- Sizes from allocated blocks with hard links counted once, and a separate "reclaimable" figure
+  for data that deleting the artifact would actually free.
+- Safety policy from git: tracked content is protected; generic names such as `build` or
+  `vendor` need git or content confirmation; recently modified artifacts are held back.
+- Validated deletion: re-checked just before removal, renamed to a staging name, then removed in
+  parallel. Optional trash mode. Interrupted cleans are found and finished by the next scan.
+- CLI: `scan`, `clean`, `tasks`, `run`, `outdated`, `caches`, `ecosystems`, `history`,
+  `completions`; `--json` on every listing.
+- TUI with four tabs: Reclaim (tree, fuzzy and facet filter, review before cleaning), Tasks (jobs
+  in pseudo-terminals), Updates (outdated and vulnerable dependencies for Rust, JavaScript, Python
+  and Go, updated through each ecosystem's own tool) and Caches (per-user caches outside projects).
+- Task discovery from `package.json`, `deno.json`, justfiles, Makefiles, Taskfiles, mise,
+  Poe/PDM, Composer and Cargo aliases, plus standard commands per ecosystem.
+- 32 global caches (package stores, toolchains, Xcode and simulator data, IDE caches) with the
+  tool's own prune command where one exists. Sizes are remembered between runs, so the Caches
+  tab opens instantly; a cache is measured again when the top of its tree changes, after a
+  week otherwise, or on request.
+- `p` scans another folder without restarting, with directory completion.
+- A footer that separates the current tab's keys from those that work in any tab. Hovering a
+  key or tab explains it (for `d`, exactly what will be deleted or run); clicking runs it.
+- Help per tab that sizes itself to the terminal.
+- User-extensible rules in `ecosystems.toml` and `caches.toml`.
+- Themes: gestalt (default), latte, nord, dracula, and a 16-color fallback.
+- A configuration file left by 0.3 is ignored with a warning instead of stopping every command.
+
+### Changed
+- Configuration moved to `~/.config/carwash/config.toml` with a new schema.
+- Minimum supported Rust version is 1.88.
+
 ## [0.3.5] - 2026-03-03
 
 ### Added