docs-build-and-verify

name	docs-build-and-verify
description	Use when asked to build, preview, or verify the Flet documentation website, including checking for broken links, broken images, and unresolved reST cross-references.

Docs Build and Verification

Prerequisites

Node.js 20 is required:

nvm use 20

Build

Full production build (includes broken link detection):

cd website && yarn build

Dev server with hot reload:

cd website && yarn start

Regenerate API data and sidebars only (no Docusaurus build):

cd website && yarn crocodocs:generate

Check Broken Links

yarn build automatically reports broken links and anchors. The build fails if any are found.

Check Broken Images

Run this after yarn build to find images referenced in HTML that don't exist:

cd website && python3 -c "
import re, os, glob

build_dir = 'build'
img_re = re.compile(r'<img[^>]+src=\"(/[^\"]+)\"', re.IGNORECASE)
broken = []

for html_file in sorted(glob.glob(f'{build_dir}/docs/**/index.html', recursive=True)):
    page = html_file.replace(build_dir + '/', '').replace('/index.html', '')
    content = open(html_file).read()
    for match in img_re.finditer(content):
        src = match.group(1)
        if src.startswith('http') or src.startswith('data:'):
            continue
        file_path = os.path.join(build_dir, src.lstrip('/'))
        if not os.path.exists(file_path):
            broken.append((page, src))

if broken:
    print(f'Found {len(broken)} broken images:')
    for page, src in broken:
        print(f'  {page}: {src}')
else:
    print('No broken images found!')
"

Check Unresolved reST Cross-References

After building, check for reST roles that failed to resolve and appear as raw text:

cd website && grep -r ':attr:\|:class:\|:meth:\|:func:' build/docs/ --include='*.html' -l

If any files are listed, those pages have unresolved cross-references that render as plain text instead of links.