glasp: A Go-based, Zero-dependency CLI for Google Apps Script (clasp Alternative)

Source: Dev.to

If you use clasp for local Google Apps Script (GAS) development, you might have faced challenges with Node.js runtime overhead or slow deployment speeds. glasp is a Go‑based CLI tool designed to address these issues, offering high performance and a simplified developer experience.

Official site:
GitHub:

Key Features

• Zero dependencies – runs as a single binary; no Node.js or npm required.
• clasp compatibility – works with existing .clasp.json and appsscript.json files. Commands like login, push, and pull follow the same syntax.
• High performance – concurrent processing provides significantly faster file scanning and uploading, especially in large projects.
• GitHub Actions optimized – a dedicated Action allows deployment without setting up a Node.js environment.

Installation

For macOS and Linux, install glasp with the following script:

curl -sL https://takihito.github.io/glasp/install.sh | bash

GitHub Action Example

name: Deploy to Google Apps Script
on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Deploy with glasp
        uses: takihito/glasp@v0.2.8
        with:
          version: 'v0.2.8'
          auth: '${{ secrets.CLASPRC_JSON }}'

Implementation Note

Register the contents of your local ~/.clasprc.json as a GitHub secret named CLASPRC_JSON.
Since the Action runs as a Docker container, the environment setup is minimal and fast.

glasp is a practical alternative for developers who want to decouple their GAS workflow from Node.js or optimize their CI/CD pipelines for speed. If you are looking for a lightweight and faster way to manage your scripts while keeping your existing clasp configurations, glasp is a strong candidate.