arookieofcanda-rookie-of-C-language
ab6fca01c4
With a project open, the app became slow and then unresponsive after 30-60 minutes. Git status writes refreshed stat data back to .git/index; the watcher reported that write as a file change and a VCS change; the UI scheduled another status ~250 ms later, which wrote the index again. With any stat-dirty file this never settled: a full status, IPC traffic and decoration rebuilds in an endless loop. Watcher batches now carry .git internals separately (FsBatch.vcs), so they no longer appear as worktree changes and no fsChanged is sent for .git-only batches. Status records the identity (size, mtime) of the index it writes, and the host skips VcsChanged only for that write; external index changes (git add / reset / stash from a terminal) and HEAD / refs / packed-refs changes still refresh as before. The UI's fsChanged handler also ignores .git-only batches. Fixes #311 Co-authored-by: a-rookie-of-C-language <186315048+a-rookie-of-C-language@users.noreply.github.com>
The IDE you know, rebuilt in Rust.
Download · Benchmark · Build · Discord
https://github.com/user-attachments/assets/234dd54c-1255-4b3a-b35c-533d78d737c0
OpenIDEA brings the IntelliJ IDEA way of working — its keymap, its tool windows, its search-everything habits — to a native app with a Rust core.
Editor, code insight, debugger, Git, terminal, database and HTTP clients, for 60+ languages. Builds for macOS, Windows and Linux.
Benchmark
Opening freqtrade (Python, ~770 files) with warm caches, median of 5 runs:
| OpenIDEA | IntelliJ IDEA 2026.2.3 | |
|---|---|---|
| Window with the project | 0.9 s | 3.1 s |
| Ready (CPU settled) | 1.1 s | 13.2 s |
| Memory (USS, all processes) | 169 MB | 2011 MB |
| CPU time until ready | 2.4 s | 47.9 s |
| Idle CPU | 4 % of a core | 7 % of a core |
| Quit | 0.3 s | 5.9 s |
A release build of OpenIDEA from main and IDEA with default settings and plugins, on
Windows 11, 32-core AMD, 62 GB RAM.
IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
both sides. Both are measured from the outside, the same way: see
perf/compare to run it on your machine and projects.
Build
pnpm install
pnpm tauri dev
Rust 1.96, Node 22, pnpm and the Tauri prerequisites.
Native notebook execution tests are opt-in and need two distinct Python environments
with ipykernel installed:
OPENIDEA_TEST_PYTHON=/first/env/bin/python \
OPENIDEA_TEST_PYTHON_SECOND=/second/env/bin/python \
cargo test -p ide-notebook --test kernel_runtime -- --ignored --test-threads=1
License
Apache 2.0. Bundled third-party assets are listed in THIRD_PARTY_LICENSES.md.
Not affiliated with JetBrains. IntelliJ IDEA is a trademark of JetBrains s.r.o.