Hits-of-Code

Small webservice, that returns a badge of the Hits-of-Code of a git repository, as described by Yegor Bugayenko. It is implemented in Rust, using the actix-web web framework.

A live version of this webservice can be found on hitsofcode.com.

Calculation

The original implementation was provided in the hoc Ruby gem.

To calculate the Hits-of-Code metric for a local/private Git repository, you can use this one-line command (which you may want to add as a git alias):

git log --pretty=tformat: --numstat --ignore-space-change --ignore-all-space --ignore-submodules --no-color --find-copies-harder -M --diff-filter=ACDM -- . | awk '$1 ~ /^[0-9]+$/ && $2 ~ /^[0-9]+$/ { add += $1; del += $2 } END { print add + del }'

API

The API is as simple as

https://<host>/<service>/<user>/<repo>

where <service> is one of gitub, gitlab, bitbucket or sourcehut. The HoC data can also be received as JSON by appending /json to the reuqest path:

https://<host>/<service>/<user>/<repo>/json

There is also an overview page available via https://<host>/<service>/<user>/<repo>/view

To delete a repository and the cache from the server, send a POST request to https://<host>/<service>/<user>/<repo>/delete. On the overview page, there is a button to perform this operation. It will respond with a redirect to the overview page so the cache is rebuilt directly.

Building

The code can be built as a standalone binary, using cargo or as a Docker container. Run either

$ cargo build --release

or

$ docker build .

inside the repository.

I'm currently working on migrating to nix. To get a development shell, run nix-shell, to build the package run nix-build --attr package and to build the Docker image, run nix-build --attr dockerImage.

Running

Rename hoc.toml.example to hoc.toml or .env.example to .env and set the correct value for base_url/HOC_BASE_URL. If you don't want to use a configuration or dotenv file, you can pass all parameters directly via environment variables. For variable names see .env.example.

To start a local instance of the service just run:

$ HOC_BASE_URL='http://0.0.0.0:8080' ./hoc

You can also use the Docker image:

$ docker run -p 8080:8080 --env HOC_BASE_URL='http://0.0.0.0:8080' -it --rm ghcr.io/vbrandl/hoc:latest

When running the binary directly, you need a git binary in your PATH.

License

hoc is licensed under the MIT License (LICENSE or http://opensource.org/licenses/MIT)