Publish Gist Report

Publish Gist Report

Publish a test report (markdown + PNGs) as a pair of secret GitHub Gists.

Why two gists

• gh gist create rejects binary files
• Data URIs don't render in gist markdown
• A single gist with many PNGs stops rendering markdown entirely (blank page)

Solution: assets gist (PNGs via git) + report gist (markdown with raw URLs).

Procedure

1. Create assets gist (if report has screenshots)

# Seed with a placeholder so the gist exists
echo "Assets for report" > /tmp/gist-assets-readme.md
ASSETS_URL=$(gh gist create /tmp/gist-assets-readme.md --desc "Assets: <report-title>" | tail -1)
ASSETS_ID=$(echo "$ASSETS_URL" | sed 's|.*/||')

2. Push PNGs into assets gist via git

WORK=$(mktemp -d)
git clone "https://gist.github.com/$ASSETS_ID.git" "$WORK"
cp <screenshot-dir>/*.png "$WORK/"
cd "$WORK" && git add *.png && git commit -m "add screenshots"
git remote set-url origin "https://$(gh auth token)@gist.github.com/$ASSETS_ID.git"
git push origin HEAD
cd - && rm -rf "$WORK"

3. Rewrite image paths in report markdown

Replace every local image reference with a raw gist URL:

![alt](./foo.png)
->
![alt](https://gist.githubusercontent.com/<username>/<assets_gist_id>/raw/foo.png)

The /raw/<filename> URL (no commit hash) always resolves to HEAD.

Get <username> via gh api user -q .login.

4. Create report gist

REPORT_URL=$(gh gist create report.md --desc "<report-title>" | tail -1)

5. Verify

# Check at least one raw image URL returns 200
curl -sI "https://gist.githubusercontent.com/<username>/$ASSETS_ID/raw/<any>.png" | head -1

6. Finalize

• Return both URLs to the user (report gist is the primary link).
• Append report gist URL to the bottom of the local report file for traceability.

Constraints

• Secret gists only. Reports may contain internal URLs, usernames, tokens in screenshots.
• No screenshots without the two-gist split. If report has zero images, a single gist is fine.
• Verify before reporting success. At least one curl -sI on a raw URL must return HTTP 200.