cphelper.nvim

A plugin for automating tasks in competitive programming like downloading test cases, compiling and testing. Supports Rust, C, C++, Python and Lua.

Requirements

Neovim >= 0.4 (Current stable is 0.5)
competitive-companion browser extension (works with Firefox and all Chromium browsers)
Plugin: nvim-lua/plenary.nvim (Install using your plugin manager)

Instructions

Use :CphReceive and press the "parse task" button in the extension to prepare files. This will open an empty solution file in your preferred language. (See )
:CphTest [numbers] to test your solution. If test case number(s) is specified, only those are run, otherwise, all cases are run.
:CphRetest [numbers] to test the same binary without recompiling.
:CphEdit [number] to edit/add a testcase.
:CphDelete [numbers] to delete testcases.

The filetype of the floating window showing results is Results, so you can disable your indentline/cursorline plugins for this filetype.

Demo video

demo.mp4

Prefs

g:cphdir : The directory in which contests are stored (default ~/contests) (Specify absolute path)
g:cphlang : Preferred language for the first solution file opened. You can open another solution.language file for a particular problem using :e and that file will be used.
g:cphborder : Border type used for the results window. Possible values: see :help nvim_open_win() (default "rounded")
g:rust_compile_command : Command for compiling Rust files (default rustc solution.rs -o rust.out)
g:c_compile_command : Command for compiling C files (default gcc solution.c -o c.out). The input file must be solution.c and the output file must be c.out, this pref is only for compile flags.
g:cpp_compile_command: Command for compiling C++ files. See above. (default g++ solution.cpp -o cpp.out)
g:cphtimeout: Time limit per test case in milliseconds (default 2000).
g:cph_rust_createjson: Whether to create a rust-project.json for rust-analyzer. (default false)
g:cph_rustjson: rust-project.json created for rust-analyzer (see above).You likely need to change this to the appropriate value for your setup if it doesn't work, mostly change <home-directory>/.rustup/toolchains/stable-x86_64-unknown-linux-gnu to the output of rustc --print sysroot. Default:

{
     "sysroot_src": "<home-directory>/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/",
     "crates": [
             {
                 "root_module": "solution.rs",
                 "edition": "2018",        // BE SURE TO CHECK THE EDITION WITH THE ONLINE JUDGE, THEIR VERSION MIGHT BE OLD.
                 "deps": []
            }
     ]
}

Directory structure

Contests directory (g:cphdir)
├── Judge 1
│   ├── Contest 1
│   │   ├── Problem 1
│   │   │   ├── input1
│   │   │   ├── input2
│   │   │   ├── output1
│   │   │   ├── output2
│   │   │   ├── solution.c
│   │   │   ├── solution.cpp
│   │   │   └── solution.py
│   │   └── Problem 2
│   │       ├── input1
│   │       ├── output1
│   │       ├── solution.c
│   │       ├── solution.cpp
│   │       └── solution.py
│   └── Contest 2
│       └── Problem 1
│           ├── input1
│           ├── output1
│           ├── solution.c
│           ├── solution.cpp
│           └── solution.py
└── Judge 2
    └── Contest 2
        └── Problem 1
            ├── input1
            ├── output1
            ├── solution.c
            ├── solution.cpp
            └── solution.py