percy-web

Percy's frontend web application, built with Ember.

Setup

First, install yarn.

Then, run:

yarn

Run server

PERCY_DEV_MIRAGE=yes yarn run start

Then, access http://localhost:4200

Using local API server

Edit /etc/hosts to add a local hostname (required):

# Add this to /etc/hosts:
127.0.0.1  dev.percy.local

Then, run:

yarn run start

Using the production API

First, add the dev.percy.local hostname above. Then, two environment variables must be set:

export PERCY_WEB_AUTH_TOKEN=...
export PERCY_WEB_API_HOST=https://percy.io

yarn run start

PERCY_WEB_AUTH_TOKEN is a full-access user token, different than the normal project PERCY_TOKEN.

Then, access http://dev.percy.local:4200

Run tests

yarn test

Or, visit http://dev.percy.local:4200/tests.

Or, to run in ember test --server mode:

yarn run test:server

Run tests locally with Percy enabled

PERCY_TOKEN=... PERCY_BRANCH=local yarn test

Update to a new ember.js version

• Determine the version of Ember Percy's is currently using from the ember-cli package version in yarn.lock.

• Determine the latest Ember release.

• Read the changelog to review changes between the source version and target version.

• View the release notes for each version between the source and target. If there are any unusual notes for an upgrade step, follow them.

• Update using the Setup and Project Update notes for the current release.

• When running the ember-init, use d to do a diff on each file. Most changes can be ignored (n). The package.json will have a few packages that need to have version numbers updated. Do these manually one by one. ember-cli-qunit doesn't need to be added.

• Run yarn install.

• Run yarn run test and make sure all tests pass. There might be deprecation warnings and breakages to fix.

• After a CI build, ensure that the same number of screenshots have been taken, and that no unexpected visual diffs are present.