Add stats comment to Pull Requests

[domoscargin]

Closes #3282

Adds file sizes for key files, and a module breakdown summary in a comment on all PRs.

[github-actions]

📋 Stats

File sizes

File	Size
dist/govuk-frontend-4.6.0.min.css	118.07 KiB
dist/govuk-frontend-4.6.0.min.js	47.1 KiB
dist/govuk-frontend-ie8-4.6.0.min.css	79.27 KiB
packages/govuk-frontend/dist/govuk/all.bundle.js	72.35 KiB
packages/govuk-frontend/dist/govuk/all.bundle.mjs	67.96 KiB
packages/govuk-frontend/dist/govuk/all.mjs	3.91 KiB
packages/govuk-frontend/dist/govuk/govuk-frontend-component.mjs	359 B
packages/govuk-frontend/dist/govuk/govuk-frontend.min.js	34.31 KiB
packages/govuk-frontend/dist/govuk/i18n.mjs	5.83 KiB

Modules

File	Size
all.mjs	64.5 KiB
components/accordion/accordion.mjs	20.86 KiB
components/button/button.mjs	3.67 KiB
components/character-count/character-count.mjs	20.46 KiB
components/checkboxes/checkboxes.mjs	4.37 KiB
components/error-summary/error-summary.mjs	4.96 KiB
components/exit-this-page/exit-this-page.mjs	15.42 KiB
components/header/header.mjs	2.3 KiB
components/notification-banner/notification-banner.mjs	3.5 KiB
components/radios/radios.mjs	3.37 KiB
components/skip-link/skip-link.mjs	2.12 KiB
components/tabs/tabs.mjs	8.04 KiB

View stats and visualisations on the review app

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Action run for 7ee4596

[colinrotherham]

@domoscargin Love seeing these stats appearing 😍

[domoscargin]

Hmm, application error on the deployment...

Looks like filesize needs to be a dependency because govuk-frontend-stats tries to import it.

I'll have a look at rejigging things a bit.

edit: Done. I've moved filesize out of govuk-frontend-stats, which now just returns the raw stats.

[domoscargin]

@colinrotherham, I've implemented your changes and all looks good.

I've also cleaned up the commit list, because it was getting messy.

[colinrotherham]

Looks ace, good to have this merged

Can you double check package versions? Think some had updated

[colinrotherham]

Not a blocker, but we could share (or rename) the DiffComment type to avoid a new one

The workspace path could satisfy path to stop any warnings

await commentStats({ github, context, commit }, issueNumber, {
  path: '${{ github.workspace }}',
  titleText: ':clipboard: Stats',
  markerText: 'stats'
})