ormastes/simple/gh-wiki

# PR metadata
PR_JSON=$(gh pr view "${PR_NUMBER}" --json title,body,files,commits,url)
PR_TITLE=$(echo "$PR_JSON" | jq -r .title)
PR_URL=$(echo "$PR_JSON" | jq -r .url)
PR_FILES=$(echo "$PR_JSON" | jq -r '.files[].path')
 
# Diff summary
DIFF_STAT=$(jj diff --stat -r @-)
 
# Commit messages
COMMIT_LOG=$(jj log -r @- --no-graph -T '"- " ++ description ++ "\n"')
 
# .sstack state (if exists)
SSTACK_STATE=""
if ls .sstack/*/state.md 1>/dev/null 2>&1; then
  SSTACK_STATE=$(cat .sstack/*/state.md | head -100)
fi

# PR #<number>: <title>
 
**PR:** <url> | **Date:** <date> | **Author:** <user>
 
## Summary
 
<From PR body / commit messages>
 
## Files Changed
 
| File | Status |
|------|--------|
<For each file: path and added/modified/deleted>
 
## Architecture Notes
 
<From .sstack state if available, or from commit messages mentioning
design decisions, new patterns, or breaking changes>
 
## Related
 
-PR: <url>
-Jira: <issue-key if linked>
-Previous: <links to related wiki pages if any>

# GitHub wiki pages can be managed via the wiki git repo
REPO=$(gh repo view --json nameWithOwner --jq .nameWithOwner)
WIKI_DIR="/tmp/wiki-${PR_NUMBER}"
 
# Clone wiki repo
git clone "https://github.com/${REPO}.wiki.git" "${WIKI_DIR}" 2>/dev/null
 
# Write page
PAGE_NAME="PR-${PR_NUMBER}-$(echo "${PR_TITLE}" | tr ' ' '-' | tr -cd '[:alnum:]-' | head -c 40)"
cat > "${WIKI_DIR}/${PAGE_NAME}.md" <<EOF
${GENERATED_CONTENT}
EOF
 
# Commit and push
cd "${WIKI_DIR}"
git add "${PAGE_NAME}.md"
git commit -m "Add wiki page for PR #${PR_NUMBER}"
git push
cd -
 
# Cleanup
rm -rf "${WIKI_DIR}"

# Add wiki link to PR description
WIKI_URL="https://github.com/${REPO}/wiki/${PAGE_NAME}"
EXISTING_BODY=$(gh pr view "${PR_NUMBER}" --json body --jq .body)
gh pr edit "${PR_NUMBER}" --body "${EXISTING_BODY}\n\nWiki: ${WIKI_URL}"