Summary:
We store the relational view in `view.json.gz` instead of `view.json`,
taking advantage of the isomorphic `pako` library for gzip encoding and
decoding.
Sample space savings (note that post bodies are included; i.e., #747 has
not been applied):
SAVE OLD (B) NEW (B) REPO
89.7% 25326 2617 sourcecred/example-github
82.9% 3257576 555948 sourcecred/sourcecred
85.2% 11287621 1665884 ipfs/js-ipfs
88.0% 20953425 2520358 gitcoinco/web
84.4% 38196825 5951459 ipfs/go-ipfs
84.9% 205770642 31101452 tensorflow/tensorflow
<details>
<summary>Script to generate space savings output</summary>
```shell
savings() {
printf '% 7s % 11s % 11s %s\n' 'SAVE' 'OLD (B)' 'NEW (B)' 'REPO'
for repo; do
file="${SOURCECRED_DIRECTORY}/data/${repo}/github/view.json.gz"
if ! [ -f "${file}" ]; then
printf >&2 'warn: no such file %s\n' "${file}"
continue
fi
script="$(sed -e 's/^ *//' <<EOF
repo = '${repo}'
pre_size = $(<"${file}" gzip -dc | wc -c)
post_size = $(<"${file}" wc -c)
percentage = '%0.1f%%' % (100 * (1 - post_size / pre_size))
p = '% 7s % 11d % 11d %s' % (percentage, pre_size, post_size, repo)
print(p)
EOF
)"
python3 -c "${script}"
done
}
```
</details>
Closes#750.
Test Plan:
Comparing the raw old version with the decompressed new version shows
that they are identical:
```
$ <~/tmp/sourcecred/data/sourcecred/example-github/github/view.json \
> shasum -a 256 -
63853b9d3f918274aafacf5198787e18185a61b9c95faf640a1e61f5d11fa19f -
$ <~/tmp/sourcecred/data/sourcecred/example-github/github/view.json.gz \
> gzip -dc | shasum -a 256
63853b9d3f918274aafacf5198787e18185a61b9c95faf640a1e61f5d11fa19f -
```
Additionally, `yarn test --full` passes, and `yarn start` still loads
data and runs PageRank properly.
wchargin-branch: gzip-relational-view
This commit isolates all of the log-weight behavior in the weight
slider. That slider moves in log space, but the numbers printed and
passed around the WeightConfig code are now always in linear-space.
This should reduce confusion in the UI and for developers.
This commit contains two other improvements: (#588)
- Changes the (log space) range on the sliders from ±10 to ±5
- Change the order from slider, weight, name to name, slider, weight, so
that there is more visual separation between the name and the weight.
Test plan: Changes to the weight slider are tested. Changes to the
WeightConfig aren't (#604) so I manually tested the UI.
Fixes#696.
Test plan: This is basically a config change, so I manually tested it.
I ran SourceCred on gitcoinco/web, which has two bots,
and verified that the bots are correctly removed from the list of users.
Selecting "Bots" in the dropdown filter shows the two bots. Changing
the user weight does not affect the bots' scores, and changing the bot
weight does affect the bots' scores.
Summary:
We can now set, at build time, a URL to be displayed at the top of the
prototype, encouraging users to provide feedback. If the URL is not
provided, it defaults to the appropriate topic on the SourceCred
Discourse instance.
The result looks like this:
![Screenshot of the feedback URL in the prototype][screenshot]
[screenshot]: https://user-images.githubusercontent.com/4317806/44814824-a238b380-ab92-11e8-88c8-dfbae27ca496.png
Test Plan:
Unit tests added to `yarn sharness-full` and `yarn unit`.
You can run `yarn start` to see the message with the default URL, or
`SOURCECRED_FEEDBACK_URL=http://example.com/ yarn start` to specify a
custom URL.
wchargin-branch: feedback-url
Summary:
As a first pass toward support for analyzing whole organizations, we
allow loading multiple repositories with `sourcecred load`, combining
them into a single relational view and a single Git graph at load time.
Test Plan:
Run
```
node bin/sourcecred.js \
load \
sourcecred/example-git \
sourcecred/example-github \
sourcecred/sourcecred \
--output sourcecred/examples \
;
```
and select `sourcecred/examples` from the web view. Filter “Repository”
nodes, and note that there are three.
Note that loading a single repository without `--output` still works,
that loading a single repository with `--output` still works (respecting
the alias name), and loading not exactly one repository without
`--output` yields an appropriate error message.
Note that `yarn sharness-full` still works.
wchargin-branch: load-combined
This commit changes the cred normalization algorithm so that the total
cred of all GitHub user nodes always sums to 1000. For rationale on the
change, see #705.
Fixes#705.
Note that this introduces a new way for PageRank to fail: if the
graph has no GitHub userlike nodes, then PageRank will throw an error
when it attempts to normalize. This will result in a message being
displayed to the user, and a more helpful error being printed to
console. If we need the cred explorer to display graphs that have no
userlike nodes, then we can modify the codepath so that it falls back to
normalizing based on all nodes instead of on the GitHub userlike nodes
specifically.
Test plan: There is an included unit test which verifies that the
new argument gets threaded through the state properly. But this is
mostly a config change, so it's best tested by actually inspecting
the cred explorer. I have done so, and can verify that the behavior is
as expected: the sum of users' cred now sums to 1000, and e.g. modifying
the weight on the repository node doesn't produce drastic changes to
cred scores.
Storing the user's weights in localStore enables a workflow where a
user chooses their preferred weights, and brings those weights with them
across projects and contexts. However, this is the wrong workflow:
actually, a project chooses its weights, and when a user visits a
particular project, they want to sync up with the project's choice.
Giving the user the ability to modify the weights and recalculate is
still important, so that they can propose improvements to the project
maintainer. But implicitly keeping their modified weights, and even
bringing them to other projects the user inspects, is
counter-productive.
This commit removes this dubious feature. (It's a feature we were likely
to drop anyway, as it conflicts with #703.) As an added bonus, this code
is untested, which means the feature is technical debt—so removing it
reduces our technical debt! It also removes at least one known bug.
Test plan: There are no tests. I manually verified that the frontend
still works, and that it no longer persists weights across refresh.
Summary:
This patch adds independent exponential backoff to each individual
GitHub GraphQL query. We remove the fixed `GITHUB_DELAY_MS` delay before
each query in favor of this solution, which requires no additional
configuration (thus resolving a TODO in the process).
We use the NPM module `retry` with its default settings: namely, a
maximum of 10 retries with factor-2 backoff starting at 1000ms.
Empirically, it seems very unlikely that we should require much more
than 2 retries for a query. (See Test Plan for more details.)
This is both a short-term unblocker and a good kind of thing to have in
the long term.
Test Plan:
Note that `yarn test --full` passes, including `fetchGithubRepoTest.sh`.
Consider manual testing as follows.
Add `console.info` statements in `retryGithubFetch`, then load a large
repository like TensorFlow, and observe the output:
```shell
$ node bin/sourcecred.js load --plugin github tensorflow/tensorflow 2>&1 | ts -s '%.s'
0.252566 Fetching repo...
0.258422 Trying...
5.203014 Trying...
[snip]
1244.521197 Trying...
1254.848044 Will retry (n=1)...
1260.893334 Trying...
1271.547368 Trying...
1282.094735 Will retry (n=1)...
1283.349192 Will retry (n=2)...
1289.188728 Trying...
[snip]
1741.026869 Ensuring no more pages...
1742.139978 Creating view...
1752.023697 Stringifying...
1754.697116 Writing...
1754.697772 Done.
```
This took just under half an hour, with 264 queries total, of which:
- 225 queries required 0 retries;
- 38 queries required exactly 1 retry;
- 1 query required exactly 2 retries; and
- 0 queries required 3 or more retries.
wchargin-branch: github-backoff
This commit re-introduces the git plugin, now that it has been radically
simplified as described in [1]. The new git plugin only has nodes for
commits and only has commit has-parent edges. As compared to the version
that was removed in #628, this plugin is far leaner. It doesn't bloat
the graph (for `sourcecred/sourcecred`, the git plugin data is just
164k), and as such doesn't incur much performance penalty.
Re-incorporating the git plugin also brings some tangible benefits. We
already had git nodes in the graph, as the GitHub plugin attaches them
to pull requests. Without any git plugin, these nodes are displayed as
"uknown nodes" with ugly descriptions. Also, including a git plugin,
even one that is very minimal, communicates to users that git is a
source of information to SourceCred, and that they can expect more from
it in the future.
Note that this commit breaks backcompat for existing repositories that
were locally loaded after #628. As such, it is best to
`rm -rf $SOURCECRED_DIRECTORY` and start with fresh data. Also, due to a
known bug in the WeightConfig, you should reset your browser's local
storage.
Test plan: After removing the SourceCred directory and the stale
localStorage, the cred explorer nicely displays git commits, and
connects them via has_parent edges. The NodeType filter allows filtering
to commits as expected, and the WeightConfig shows node and edge weights
for the Git plugin's nodes and edges.
[1]: https://github.com/sourcecred/sourcecred/issues/627#issuecomment-413435447
It's more consistent to prepend entries to the [Unreleased] section of
the changelog, so that entries are all in reverse-chronological order.
Since we've appended the first few entries, we reverse them now.
Test plan: Not needed
The 'Score' column is renamed to 'Cred' (and its prop is renamed as
well). The column which shows how a connection or aggregation
contributes to a node's cred, as a percentage, has been rendered
nameless. It is pretty self explanatory, and the previous name
("Connection") was meaningless.
Test plan: Unit tests, also I inspected the frontend.
Some CSS magic was required.
Also creates `src/app/version.js` for storing the version string.
Test plan: Visual inspection of the footer in both Chrome and Firefox,
both on a page with very little content (the cred explorer without a
repository loaded), and on a page with more than a screen height's of
content (the homepage, or cred explorer with a large repository loaded).
In all cases, the footer unobtrusively appears in the lower-left hand
corner at the bottom of the screen, (after scrolling past all content,
if applicable).
Summary:
This commit approximately completes the implementation of #643.\* Plugin
adapters are now provided an `Assets` object at `load` time, which they
can use to resolve their plugin-specific API routes.
\* “Approximately” because there are some non-essential pieces of legacy
code that should be cleaned up.
Test Plan:
Unit tests modified, but it would be good to also manually test this.
Run `./scripts/build_static_site.sh` to build the site to, say,
`/tmp/gateway/`. Then spin up a static HTTP server serving `/tmp/` and
navigate to `/gateway/` in the browser. Note that the entire application
works.
wchargin-branch: use-assets-in-PluginAdapters
Previously, expanding a node would display the individual connections
that contributed cred to that node. For nodes with high degree, this was
a pretty noisy UI.
Now, expanding a node displays "aggregations": for every type of
adjacent connection (where type is the union of the edge type and the
adjacent node type), we show a summary of the total cred from
connections of that type. The result is a much more managable summary
view. Naturally, these aggregations can be further expanded to see the
individual connections.
Closes#502.
Test plan: The new behavior is unit tested. You can also launch the cred
explorer and experience the UI directly. I have used the new UI a lot,
as well as demo'd it to people, and I like it quite a bit.
William Chargin
Dandelion Mané
