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  1. d179a14 Import TriciumV1Client by Gavin Mak · 5 weeks ago master
  2. cbd61ac Import TriciumV1Client by Gavin Mak · 8 weeks ago
  3. a38f912 Serve tricium.js instead of tricium.html by Josip Sokcevic · 3 months ago
  4. e2cd79d Add warning for by Gavin Mak · 3 months ago
  5. 839eb6d Migrate tricium to Polymer 3 by Josip Sokcevic · 5 months ago

Tricium Plugin for Gerrit

Tricium is a code analysis service for Chromium. The purpose of this plugin is to integrate with the Gerrit UI, e.g. by displaying progress of analyzers.


Checking out the code

To check out the Tricium plugin code:

git clone

Running the tests

npm run wct-test

Integration testing with Gerrit

You can create a local instance of Gerrit and use this plugin in that instance.

If needed, install bazel, and then build from the Gerrit repo root with bazel build plugins/tricium.

Running with PolyGerrit UI and production data

The Gerrit repo includes a script for trying the PolyGerrit UI with a local server local plugins but with production data. See

To set up to run PolyGerrit with a local copy of the plugin, first get the Gerrit repo:

git clone --recursive

Then move or link the Tricium repo so it's inside the gerrit/plugins/ directory, e.g. mv tricium gerrit/plugins/.

Known issue: with a locally run PolyGerrit, you can‘t log in, which means robot comment actions (e.g. the “not useful” button) aren’t visible by default.

To bypass this issue, follow the instructions below:

  1. Install the Gerrit Dev Helper extension. After downloading the plugin, navigate to a CL with Tricium comments on Chrome. Click the plugin icon on the top right to enable the plugin. Click the icon again to display a configuration menu.
  2. Add http://localhost:8081/plugins/tricium/src/main/resources/static/tricium.html to the injectHtmlCode field. Note that the port might not be 8081 depending on how you started the local server. Make sure you use the correct port number.
  3. Disable the bundled plugins. a. Find the URL of the bundled plugins, which looks something like, but may have a different version and hash. You can search for the correct link in the “Network” section of Chrome's developer console. b. In the configuration menu for the Gerrit Dev Helper extension, add a rule to block all requests to the polygerrit assets link you found before.
  4. If necessary, add a rule to redirect to http://localhost:8081/plugins/tricium/src/main/resources/static/tricium.html.
  5. Reload the page. You should see Gerrit using your local version of the plugin.

Running a local Gerrit instance

It's also possible to test with a local instance of Gerrit.

To do this you must set up a Gerrit test site. To build the tricium plugin in Gerrit, it is assumed that the tricium directory is iniside the gerrit plugins directory.

Then, the local site could be started with Tricium by running

Project Configuration

This plugin is configured via the tricium.config file present in the repo's refs/meta/config ref. This file uses git config format. Example:

  tricium =