sourcecred/README.md

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# [SourceCred](https://sourcecred.io)
[![Build Status](https://circleci.com/gh/sourcecred/sourcecred.svg?style=svg)](https://circleci.com/gh/sourcecred/sourcecred)
[![Discourse topics](https://img.shields.io/discourse/https/discuss.sourcecred.io/topics.svg)](discuss.sourcecred.io)
[![Discord](https://img.shields.io/discord/453243919774253079.svg)](https://discord.gg/tsBTgc9)
2018-03-02 23:06:46 +00:00
SourceCred creates reputation networks for open-source projects.
Any open-source project can create its own _cred_, which is a reputational metric showing how much credit contributors deserve for helping the project.
To compute cred, we organize a projects contributions into a graph, whose edges connect contributions to each other and to contributors.
We then run PageRank on that graph.
To learn more about SourceCreds vision and values, please check out [our website] and our [forum].
One good forum post to start with is [A Gentle Introduction to Cred].
For an example of SourceCred in action, you can see SourceCreds own [prototype cred attribution][prototype].
[our website]: https://sourcecred.io/
[prototype]: https://sourcecred.io/prototype/
[A Gentle Introduction to Cred]: https://discuss.sourcecred.io/t/a-gentle-introduction-to-cred/20
## Current Status
We have a [prototype] that can generate a cred attribution based on GitHub interactions (issues, pull requests, comments, references, etc.).
Were working on adding more information to the prototype, such as tracking modifications to individual files, source-code analysis, GitHub reactions, and more.
### Running the Prototype
If youd like to try it out, you can run a local copy of SourceCred as follows.
First, make sure that you have the following dependencies:
- Install [Node] (tested on v8.x.x).
- Install [Yarn] (tested on v1.7.0).
- Create a [GitHub API token]. No special permissions are required.
- For macOS users: Ensure that your environment provides GNU
coreutils. [See this comment for details about what, how, and
why.][macos-gnu]
[Node]: https://nodejs.org/en/
[Yarn]: https://yarnpkg.com/lang/en/
[GitHub API token]: https://github.com/settings/tokens
[macos-gnu]: https://github.com/sourcecred/sourcecred/issues/698#issuecomment-417202213
Then, run the following commands to clone and build SourceCred:
```
git clone https://github.com/sourcecred/sourcecred.git
cd sourcecred
yarn install
yarn backend
export SOURCECRED_GITHUB_TOKEN=YOUR_GITHUB_TOKEN
node bin/sourcecred.js load REPO_OWNER/REPO_NAME
# this loads sourcecred data for a particular repository
# it can take a few mins to run and will exit when finished
yarn start
# then navigate to localhost:8080 in your browser
```
For example, if you wanted to look at cred for [ipfs/js-ipfs], you could run:
```
$ export SOURCECRED_GITHUB_TOKEN=0000000000000000000000000000000000000000
$ node bin/sourcecred.js load ipfs/js-ipfs
```
replacing the big string of zeros with your actual token.
[ipfs/js-ipfs]: https://github.com/ipfs/js-ipfs
You can also combine data from multiple repositories into a single graph.
To do so, pass multiple repositories to the `load` command, and specify an “output name” for the repository.
For instance, the invocation
```
node bin/sourcecred.js load ipfs/js-ipfs ipfs/go-ipfs --output ipfs/meta-ipfs
```
will create a graph called `ipfs/meta-ipfs` in the cred explorer, containing the combined contents of the js-ipfs and go-ipfs repositories.
## Early Adopters
Were looking for projects who want to be early adopters of SourceCred!
If youre a maintainer of an open-source project and would like to start using SourceCred, please reach out to us on our [Discord] or our [forum].
## Contributing
Wed love to accept your contributions!
You can reach out to us by posting on our [forum], or chatting with us on [Discord].
We'd be happy to help you get started and show you around the codebase.
Please also take a look at our [contributing guide].
If youre looking for a place to start, weve tagged some issues [Contributions Welcome].
[forum]: https://discuss.sourcecred.io
[Discord]: https://discord.gg/tsBTgc9
[contributing guide]: https://github.com/sourcecred/sourcecred/blob/master/CONTRIBUTING.md
[Contributions Welcome]: https://github.com/SourceCred/SourceCred/issues?q=is%3Aopen+is%3Aissue+label%3A%22contributions+welcome%22
## License
SourceCred is dual-licensed under Apache 2.0 and MIT terms:
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or <https://www.apache.org/licenses/LICENSE-2.0>)
* MIT License ([LICENSE-MIT](LICENSE-MIT) or <https://opensource.org/licenses/MIT>)
## Acknowledgements
Wed like to thank [Protocol Labs] for funding and support of SourceCred.
Wed also like to thank the many open-source communities that produced the software that SourceCred is built on top of, such as Git and Node.
[Protocol Labs]: https://protocol.ai