l0ng-ai
00a647daa2
ide-jsonrpc handled incoming notifications in order on a dedicated thread but started each incoming request on its own blocking task right away, so a request could be handled before a notification that arrived ahead of it. The mock language server in the ide-lsp tests answered `textDocument/references` before applying the `didOpen` of a file opened for a project-wide search (missing results, a search finishing before the test could cancel it or open the file), and on the client side an ACP `session/request_permission` could overtake the `session/update` that announced its tool call (ide-agent polled for up to 200 ms to cover it). A request now starts once every notification received before it has been handled; requests still run concurrently. The ide-agent polling is gone. Tests no longer depend on timing: - the references tests hold the mock's answer with a gate and cancel or open the file while it is held, instead of sleeping and measuring; - the indexing retry ends indexing once the first answer is out; - the crash/restart test counts Ready/Crashed statuses instead of reading the last one, which a restart can already have replaced; - the mock records a notification under the same lock as its effect, and `eventually` waits up to 30 s; - the TCP tests hold their port bound (not listening) instead of freeing it for another test to take, and listen only after the command started. Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
The IDE you know, rebuilt in Rust.
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
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IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
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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.
License
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