No description
da4e2ebeba
## Problem
Credentials were stored as plaintext JSON in
`stdpath('data')/cp-nvim.json`, with no integration with system
credential managers.
## Solution
Replace file-based credential storage with `git credential
fill/approve/reject`, delegating to whatever credential helper the user
has configured (`cache`, `store`, `libsecret`, macOS Keychain, etc.).
- New `lua/cp/git_credential.lua` module wrapping the git credential
protocol
- All credential consumers (`credentials.lua`, `submit.lua`,
`scraper.lua`) use `git_credential` directly — `cache.lua` no longer
handles credentials
- CSES API token packed into the password field (`password<TAB>token`)
so it works with helpers that ignore the `path` field
- `has_helper()` guard on `:CP login`, `:CP logout`, and `:CP submit`
with an error message if no helper is configured
- Healthcheck split into `[required]`/`[optional]` sections; git version
and credential helper status shown
- `git` checked at startup in `check_required_runtime()`
- Cache version system (`CACHE_VERSION`, v1→v2 migration) removed — the
cache file is now a plain JSON blob
- `:CP` command gets `bar = true`
|
||
|---|---|---|
| .github | ||
| after/ftplugin | ||
| doc | ||
| lua/cp | ||
| plugin | ||
| scrapers | ||
| scripts | ||
| tests | ||
| .editorconfig | ||
| .gitignore | ||
| .luarc.json | ||
| .pre-commit-config.yaml | ||
| .prettierignore | ||
| .prettierrc | ||
| .python-version | ||
| .styluaignore | ||
| cp.nvim-scm-1.rockspec | ||
| flake.lock | ||
| flake.nix | ||
| LICENSE | ||
| pyproject.toml | ||
| README.md | ||
| selene.toml | ||
| stylua.toml | ||
| uv.lock | ||
| vim.yaml | ||
cp.nvim
The definitive competitive programming environment for Neovim
Scrape problems, run tests, and debug solutions across multiple platforms with zero configuration.
https://github.com/user-attachments/assets/e81d8dfb-578f-4a79-9989-210164fc0148
Features
- Multi-platform support: AtCoder, CodeChef, Codeforces, USACO, CSES, Kattis
- Online Judge Integration: Submit problems and view contest standings
- Live Contest Support: Participate in real-time contests
- Automatic setup: Scrape test cases and metadata in seconds
- Streamlined Editing: Configure coding view, edit test cases, stress-test solutions, run interactive problems, and more
- Rich output: 256 color ANSI support for compiler errors and program output
- Language agnosticism: Configure with any language
- Security: Passwords go untampered
Installation
Install using your package manager of choice or via luarocks:
luarocks install cp.nvim
Dependencies
Quick Start
- Find a contest:
:CP pick
- View the problem:
:CP open
- Code and test
:CP run
- Navigate between problems
:CP next
:CP prev
:CP e1
- Debug and edit test cases
:CP edit
:CP panel --debug
- Submit:
:CP submit
- View contest standings:
:CP open standings
Documentation
:help cp.nvim
See my config for the setup in the video shown above.
Motivation
I could not find a neovim-centric, efficient, dependency-free, flexible, and easily customizable competitive programming workflow that "just works"--so I made it myself. I conferenced with top competitive programmers at Carnegie Mellon Univerity and the University of Virginia and covered their (and my) pain points:
- Scraping: contests are automatically loaded asynchronously
- Test Case Management: test case editor (
:CP edit) - UI: both
runandpanellayouts cover common formats - Extensibility: snippet plugins, compilation, etc. are left to the programmer