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## SourceCred
# [SourceCred](https://sourcecred.io)
[![Build Status](https://travis-ci.org/sourcecred/sourcecred.svg?branch=master)](https://travis-ci.org/sourcecred/sourcecred)
[![Discord](https://img.shields.io/discord/453243919774253079.svg)](https://discord.gg/tsBTgc9)
### Vision
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.
Open source software is amazing, and so are its creators and maintainers. How
amazing? It's difficult to tell, since we don't have good tools for recognizing
those people. Many amazing open-source contributors labor in the shadows, going
unappreciated for the work they do.
To learn more about SourceCreds vision and values, please check out [our website].
For an example of SourceCred in action, you can see SourceCreds own [prototype cred attribution][prototype].
SourceCred will empower projects to track contributions and create cred, a
reputational measure of how valuable each contribution was to the project.
Algorithmically, contributions will be organized into a [graph], with edges
representing connections between contributions. Then, a configurable [PageRank]
algorithm will distill that graph into a cred attribution.
[our website]: https://sourcecred.io/
[prototype]: https://sourcecred.io/prototype/
[graph]: https://en.wikipedia.org/wiki/Graph_(discrete_mathematics)
[PageRank]: https://en.wikipedia.org/wiki/PageRank
## Current Status
SourceCred is dogfooding itself. People who contributes to SourceCred—by
writing bug reports, participating in design discussions, or writing pull
requests—will receive cred in SourceCred.
### Design Goals
SourceCred development is organized around the following high-level goals.
- *Transparent*
It should be easy to see why cred is attributed as it is, and link a person's
cred directly to contributions they've made.
- *Community Controlled*
Each community has the final say on what that community's cred is. We don't
expect an algorithm to know what's best, so we'll empower communities to use
algorithmic results as a starting point, and improve results with their
knowledge.
- *Decentralized*
Individual projects and communities will control their own SourceCred
instances, and own their own data. The SourceCred creators won't have the power
to control or modify other projects' cred.
- *Forkable*
Forking is important to open source, and gives people the freedom to vote with
their feet. SourceCred will support forking, and forks will be able to modify
their cred independently of the original.
- *Flexible & Extensible*
SourceCred is focused on open-source projects for now, but we think it can be a
general system for building reputation networks. We're organizing around very
flexible core abstractions, and a plugin architecture for specific domains.
### Current Status
As of July 2018, it's still early days for SourceCred! So far, we've set the
following foundations:
- the [graph class] is the heart of SourceCred, and we've spent a lot of time
polishing those APIs 🙂
- the [GitHub plugin] downloads data from GitHub and imports it into a graph
- the [Git plugin] clones a Git repository and imports it into a graph
- our [PageRank implementation] does cred attribution on the graph
- the [cred explorer] makes the PageRank results transparent
[graph class]: https://github.com/sourcecred/sourcecred/blob/master/src/core/graph.js
[Git plugin]: https://github.com/sourcecred/sourcecred/tree/master/src/plugins/git
[GitHub plugin]: https://github.com/sourcecred/sourcecred/tree/master/src/plugins/github
[PageRank implementation]: https://github.com/sourcecred/sourcecred/blob/master/src/core/attribution/pagerank.js
[cred explorer]: https://github.com/sourcecred/sourcecred/tree/master/src/app/credExplorer
The PageRank results aren't very good yet - we need to add more configurability
to get higher quality results. We're working out improvements [in this issue].
[in this issue]: https://github.com/sourcecred/sourcecred/issues/476
### Roadmap
The team is focused right now on building an end-to-end beta that can import
GitHub repositories and produce a reasonable and configurable cred attribution.
We hope to have the beta ready by November 2018.
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 you'd like to try it out, you can run a local copy of SourceCred using the
following commands. You need to have [node] and [yarn] installed first. This repo
is stable and tested on Node version 8.x.x, and Yarn version 1.7.0.
You also need to get a [GitHub API access token]. This token does not need any
specific permissions.
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:
[node]: https://nodejs.org/en/
[yarn]: https://yarnpkg.com/lang/en/
[GitHub API access token]: https://github.com/settings/tokens
- Install [Node] (tested on v8.x.x).
- Install [Yarn] (tested on v1.7.0).
- Create a [GitHub API token]. No special permissions are required.
[Node]: https://nodejs.org/en/
[Yarn]: https://yarnpkg.com/lang/en/
[GitHub API token]: https://github.com/settings/tokens
Then, run the following commands to clone and build SourceCred:
```
git clone https://github.com/sourcecred/sourcecred.git
@ -107,10 +43,11 @@ export SOURCECRED_GITHUB_TOKEN=YOUR_GITHUB_TOKEN
node bin/sourcecred.js load REPO_OWNER/REPO_NAME
# this loads sourcecred data for a particular repository
yarn start
# then navigate to localhost:3000 in your browser
# 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
@ -120,10 +57,25 @@ replacing the big string of zeros with your actual token.
[ipfs/js-ipfs]: https://github.com/ipfs/js-ipfs
### Contributing
## Early Adopters
Wed love to accept your contributions! Please join our [Discord] to get
in touch with us, and check out our [contributing guide] to get started.
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].
## Contributing
Wed love to accept your contributions!
Please join our [Discord] to get in touch with us, and check out our [contributing guide] to get started.
If youre looking for a place to start, weve tagged some issues [Contributions Welcome].
[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
## 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