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Dandelion Mané a133a7252f
Fix a bug that can lock the cred explorer UI (#764)
Currently, it's possible to lock the cred explorer UI via the following
sequence of actions:

1. Press the analyze cred button
2. While it is running, modify the weights

After following this repro, the UI is stuck: it will say "loading"
forever, and the analyze cred button is disabled.

The issue is that loadGraph and runPagerank do not apply their success
(or failure) state transitions if they are pre-empted by another state
change. If a repo change occurs, that's the right behavior: the repo
change puts the state back to `"READY_TO_LOAD_GRAPH"`, which means the
UI is ready to re-load, and showing the PageRank results for the wrong
repo would be very confusing.

However, if an edge evaluator change occurs while loadGraph or
runPagerank is happening, the state is left in the "LOADING" status
(which means the analyze cred button  is disabled).

This commit fixes the issue via a refactor: per @wchargin's suggestion,
responsibility for the edge evaluator moves from the state module out to
`credExplorer/App.js`. This dramatically simplifies the state module, as
we no longer need a `Substate` concept: we can simplify the state into a
single sequence of states.

As of the refactor, the bug is impossible.

Test plan: Unit tests have been updated to maintain coverage on the
refactored code. I manually tested that the bug no longer repro's, and
that the cred explorer UI continues to function. I did not add a new
test to protect against regression, because in the new codepath, the bug
is basically impossible.
2018-09-04 19:41:37 -07:00
config Replace `oclif` with `cli` (#744) 2018-09-02 16:11:56 -07:00
flow-typed/npm Add all available flow-typed libdefs (#548) 2018-07-27 17:23:24 -07:00
scripts build_static_site.sh: add --feedback-url help text (#722) 2018-08-29 16:51:28 -07:00
sharness Make js_bundle_path test POSIX-compliant (#754) 2018-09-03 10:51:16 -07:00
src Fix a bug that can lock the cred explorer UI (#764) 2018-09-04 19:41:37 -07:00
.eslintrc.js Disable the `no-useless-constructor` lint rule (#308) 2018-05-28 15:01:28 -07:00
.flowconfig Flow: enable `//$ExpectFlowError` (#315) 2018-05-29 13:56:36 -07:00
.gitignore Configure Webpack for backend applications (#84) 2018-03-18 22:43:23 -07:00
.prettierignore Ignore coverage output in Prettier (#364) 2018-06-08 10:50:52 -07:00
.prettierrc.json Move package json to root (#37) 2018-02-26 22:32:23 -08:00
.travis.yml package.json: reorganize test commands (#571) 2018-07-31 10:53:10 -07:00
CHANGELOG.md Configure forward/backward edge weights separately (#749) 2018-09-04 15:37:00 -07:00
CONTRIBUTING.md Reverse the order of CHANGELOG entries (#681) 2018-08-16 11:14:52 -07:00
LICENSE Add LICENSE 2018-02-03 17:58:49 -08:00
README.md Document that GNU coreutils are required (#733) 2018-08-30 08:58:32 -07:00
package.json Remove OClif entirely (#745) 2018-09-02 16:16:00 -07:00
yarn.lock Remove OClif entirely (#745) 2018-09-02 16:16:00 -07:00

README.md

SourceCred

Build Status Discourse topics Discord

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.

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:

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
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.

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.

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.