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Unverified Commit a8226eb0 authored by Neal Vaidya's avatar Neal Vaidya Committed by GitHub
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ci: add docs preview to PR CI (#6351) 


Signed-off-by: default avatarNeal Vaidya <nealv@nvidia.com>
parent 70822f35
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.github/filters.yaml
View file @ a8226eb0
......@@ -19,6 +19,7 @@ all:
docs:
- 'docs/**'
- 'fern/**'
- '.github/workflows/fern-docs.yml'
- '**/*.md'
- '**/*.txt'
- '**/.gitignore'
......
.github/workflows/fern-docs.yml
View file @ a8226eb0
......@@ -18,18 +18,19 @@
# This workflow handles all Fern documentation automation:
#
# 1. LINT (PRs): Validates Fern configuration and checks for broken links
# - Triggers on pull requests when docs/** files change
# - Triggers on PRs when docs/** files change
# - Runs `fern check` and `fern docs broken-links`
#
# 2. SYNC dev (push to main): Syncs docs/ from main to fern/ on docs-website branch
# - Triggers on push to main when docs/** files change
# - Preserves versioned documentation snapshots on docs-website branch
# - Publishes docs to Fern after syncing
# 2. SYNC & PUBLISH/PREVIEW: Syncs docs/ from source branch to fern/ on docs-website
# - Triggers on push to main or PRs when docs/** files change
# - On main: commits and pushes to docs-website, then publishes via `fern generate --docs`
# - On PRs: generates a preview URL via `fern generate --docs --preview` and comments on PR
# - Preserves versioned documentation (products[0]) from docs-website's docs.yml
#
# 3. VERSION RELEASE (tags): Creates versioned documentation snapshot
# - Triggers on new version tags (vX.Y.Z format)
# - Creates pages-vX.Y.Z/ directory on docs-website branch
# - Updates docs.yml with new version entry
# - Creates fern/pages-vX.Y.Z/ directory on docs-website branch
# - Updates fern/docs.yml with new version entry
# - Publishes docs to Fern after releasing
#
# Note: The publish step is included inline because pushes made with GITHUB_TOKEN
......@@ -55,6 +56,7 @@ on:
permissions:
contents: write
pull-requests: write
jobs:
# Detect changed files for conditional job execution
......@@ -138,23 +140,33 @@ jobs:
run: fern docs broken-links
#############################################################################
# SYNC dev - Run on push to main when docs/** files change
# SYNC & PUBLISH/PREVIEW - Syncs docs content to docs-website structure
# On main: commits, pushes, and publishes to Fern
# On PRs: generates a preview URL and comments on the PR
#############################################################################
sync-dev:
name: Sync dev to docs-website
preview-or-publish-docs:
name: Preview or publish docs
needs: changed-files
if: |
github.ref == 'refs/heads/main' &&
github.ref_type != 'tag' &&
(needs.changed-files.outputs.docs == 'true' || github.event_name == 'workflow_dispatch') &&
(github.event.inputs.tag == '' || github.event.inputs.tag == null)
runs-on: ubuntu-latest
steps:
- name: Checkout main branch
- name: Determine context
id: ctx
run: |
if [ "$GITHUB_REF" = "refs/heads/main" ]; then
echo "is_main=true" >> $GITHUB_OUTPUT
else
echo "is_main=false" >> $GITHUB_OUTPUT
fi
- name: Checkout source branch
uses: actions/checkout@v4
with:
ref: main
path: main-checkout
path: source-checkout
fetch-depth: 1
- name: Checkout docs-website branch
......@@ -164,54 +176,47 @@ jobs:
path: docs-checkout
fetch-depth: 1
token: ${{ secrets.GITHUB_TOKEN }}
- name: Setup Git
run: |
cd docs-checkout
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"
- name: Sync dev content from main
run: |
# Sync pages/ directory (dev content)
echo "Syncing pages/ from main to docs-website branch..."
echo "Syncing pages/ to docs-website branch..."
rm -rf docs-checkout/fern/pages
cp -r main-checkout/docs/pages docs-checkout/fern/pages
cp -r source-checkout/docs/pages docs-checkout/fern/pages
# Sync versions/dev.yml (dev navigation)
echo "Syncing versions/dev.yml from main to docs-website branch..."
cp main-checkout/docs/versions/dev.yml docs-checkout/fern/versions/dev.yml
echo "Syncing versions/dev.yml to docs-website branch..."
cp source-checkout/docs/versions/dev.yml docs-checkout/fern/versions/dev.yml
# Sync assets/ directory
echo "Syncing assets/ from main to docs-website branch..."
echo "Syncing assets/ to docs-website branch..."
rm -rf docs-checkout/fern/assets
cp -r main-checkout/docs/assets docs-checkout/fern/assets
cp -r source-checkout/docs/assets docs-checkout/fern/assets
# Sync fern.config.json
echo "Syncing fern.config.json from main to docs-website branch..."
cp main-checkout/docs/fern.config.json docs-checkout/fern/fern.config.json
echo "Syncing fern.config.json to docs-website branch..."
cp source-checkout/docs/fern.config.json docs-checkout/fern/fern.config.json
# Sync .gitignore if it exists
if [ -f main-checkout/docs/.gitignore ]; then
cp main-checkout/docs/.gitignore docs-checkout/fern/.gitignore
if [ -f source-checkout/docs/.gitignore ]; then
cp source-checkout/docs/.gitignore docs-checkout/fern/.gitignore
fi
# Sync convert_callouts.py script
if [ -f main-checkout/docs/convert_callouts.py ]; then
cp main-checkout/docs/convert_callouts.py docs-checkout/fern/convert_callouts.py
if [ -f source-checkout/docs/convert_callouts.py ]; then
cp source-checkout/docs/convert_callouts.py docs-checkout/fern/convert_callouts.py
fi
# Sync components/ directory (e.g., CustomFooter.tsx)
if [ -d main-checkout/docs/components ]; then
echo "Syncing components/ from main to docs-website branch..."
if [ -d source-checkout/docs/components ]; then
echo "Syncing components/ to docs-website branch..."
rm -rf docs-checkout/fern/components
cp -r main-checkout/docs/components docs-checkout/fern/components
cp -r source-checkout/docs/components docs-checkout/fern/components
fi
# Sync main.css
if [ -f main-checkout/docs/main.css ]; then
echo "Syncing main.css from main to docs-website branch..."
cp main-checkout/docs/main.css docs-checkout/fern/main.css
if [ -f source-checkout/docs/main.css ]; then
echo "Syncing main.css to docs-website branch..."
cp source-checkout/docs/main.css docs-checkout/fern/main.css
fi
- name: Convert GitHub callouts to Fern format
......@@ -230,8 +235,8 @@ jobs:
echo "Preserved products[0] block:"
cat /tmp/preserved_product.yml
# Copy docs.yml from main to get config updates (redirects, layout, etc.)
cp ../../main-checkout/docs/docs.yml docs.yml
# Copy docs.yml from source to get config updates (redirects, layout, etc.)
cp ../../source-checkout/docs/docs.yml docs.yml
# Restore the preserved products[0] block
yq -i '.products[0] = load("/tmp/preserved_product.yml")' docs.yml
......@@ -252,8 +257,61 @@ jobs:
git status --short
fi
- name: Commit and push changes
- name: Setup Node.js
if: steps.changes.outputs.has_changes == 'true'
uses: actions/setup-node@v4
with:
node-version: '22'
- name: Install Fern CLI
if: steps.changes.outputs.has_changes == 'true'
run: npm install -g fern-api
##########################################################################
# PREVIEW - Generate a preview URL for docs changes
##########################################################################
- name: Generate docs preview
if: steps.ctx.outputs.is_main != 'true' && steps.changes.outputs.has_changes == 'true'
id: preview
working-directory: docs-checkout/fern
env:
FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
run: |
OUTPUT=$(fern generate --docs --preview 2>&1)
FERN_EXIT=$?
echo "$OUTPUT"
if [ $FERN_EXIT -ne 0 ]; then
echo "::warning::Fern docs preview generation failed (exit $FERN_EXIT)"
fi
URL=$(echo "$OUTPUT" | grep -oP 'Published docs to \K\S+') || true
if [ -n "$URL" ]; then
echo "url=$URL" >> $GITHUB_OUTPUT
fi
- name: Comment preview URL on PR
if: steps.ctx.outputs.is_main != 'true' && steps.preview.outputs.url != '' && startsWith(github.ref, 'refs/heads/pull-request/')
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
PR_NUM="${GITHUB_REF##*/}"
gh pr comment "https://github.com/${{ github.repository }}/pull/${PR_NUM}" \
--edit-last --create-if-none \
--body "🌿 **Fern Docs Preview:** ${{ steps.preview.outputs.url }}/dev"
##########################################################################
# PUSH AND PUBLISH - push changes to docs-website branch and publish docs
##########################################################################
- name: Setup Git
if: steps.ctx.outputs.is_main == 'true' && steps.changes.outputs.has_changes == 'true'
run: |
cd docs-checkout
git config user.name "github-actions[bot]"
git config user.email "github-actions[bot]@users.noreply.github.com"
- name: Commit and push changes
if: steps.ctx.outputs.is_main == 'true' && steps.changes.outputs.has_changes == 'true'
run: |
cd docs-checkout
......@@ -269,18 +327,8 @@ jobs:
echo "Successfully synced dev docs to docs-website branch"
- name: Setup Node.js
if: steps.changes.outputs.has_changes == 'true'
uses: actions/setup-node@v4
with:
node-version: '20'
- name: Install Fern CLI
if: steps.changes.outputs.has_changes == 'true'
run: npm install -g fern-api
- name: Publish Docs
if: steps.changes.outputs.has_changes == 'true'
if: steps.ctx.outputs.is_main == 'true' && steps.changes.outputs.has_changes == 'true'
env:
FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
working-directory: docs-checkout/fern
......@@ -472,7 +520,7 @@ jobs:
- name: Setup Node.js
uses: actions/setup-node@v4
with:
node-version: '20'
node-version: '22'
- name: Install Fern CLI
run: npm install -g fern-api
......
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