ruler-progress-render

name	ruler-progress-render
description	Clone or update https://github.com/sxhzju/ruler-progress-animator and render a ruler progress video with default parameters. Use when users ask for requests like "绘制个尺子进度条", "做个尺子进度动画", "渲染 ruler progress", or ask to export the default demo video from this project.

Ruler Progress Render

Workflow

1. Use scripts/render_ruler_progress.sh from this skill.
2. Pass workspace_dir as the first argument when the user specifies a folder; otherwise use current directory.
3. Pass output_path as the second argument when the user specifies output; otherwise use out/scaffold-demo-defaults-transparent.mov.
4. Run the script and wait for completion.
5. Return the final absolute output path printed by the script.

Command

bash scripts/render_ruler_progress.sh [workspace_dir] [output_path]

Behavior

• Reuse local repo if workspace_dir/ruler-progress-animator exists; otherwise clone from GitHub.
• Track remote default branch (origin/HEAD) when updating existing repo.
• Install npm dependencies.
• If bunx is available, run the new scaffold flow:
  • npm run remotion:ensure-browser
  • REMOTION_OUTPUT=... REMOTION_PROPS_FILE=shared/project/render-presets/default.json npm run remotion:render
• This flow reuses shared Chrome Headless Shell cache and avoids repeated browser downloads.
• If bunx is unavailable, fallback to npx remotion render with equivalent defaults as a compatibility path (without shared browser cache optimization).

Requirements

• git
• node
• npm
• network access for clone/update and dependency install