l0ng-ai
1e8551ad0b
C/C++ files in a CMake project ran as standalone compiler commands, so multi-source programs failed to link. Single-file debugging selected CodeLLDB although the language uses lldb-dap. File aliases such as /tmp and /private/tmp could apply one rename edit twice. CMake command names were highlighted as variable definitions. - Add CMake Configure, Build and CTest configurations, and read the File API codemodel after configuring to discover executable targets and their sources. Context runs select the owning target and build it first. Configuring only runs before the first build, since a configured build directory regenerates by itself. - Debug C/C++ files and CMake targets with lldb-dap, and map CMake's recorded source root to its canonical path so breakpoints resolve. - Coalesce file aliases and duplicate edits before preview and application, deduplicate references, and avoid reopening an open document through an alias. - Replace the CMake syntax mode with command, argument keyword, predefined variable, boolean, number, string, comment and expansion highlighting.
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.