vuer-cli 0.0.4

A Python CLI for Vuer, a real-time 3D visualization library

Vuer Hub Environment Manager

Vuer HUB and the vuer command line tool enable you to manage, version-control, and distribute physical simulation environments the same way you manage software packages.

Installation

pip install vuer-cli==0.0.4

or with uv:

uv add vuer-cli==0.0.4

Environment Variables

Variable	Required	Description
VUER_AUTH_TOKEN	✅	JWT token used for all authenticated requests
VUER_HUB_URL	✅	Base URL of the Vuer Hub API (required — no default; e.g. https://hub.vuer.ai/api)

Commands

Command	Description
vuer	Show top-level help and list available commands
vuer --help	Show detailed CLI help
sync	Sync all environments from environment.json dependencies (like npm install)
add	Add an environment dependency to environment.json
remove	Remove an environment dependency from environment.json
upgrade	Upgrade an environment dependency in environment.json to latest
envs-publish	Publish an environment version
envs-pull	Download an environment by ID or name/version

Usage

Quick start — configure environment variables

VUER_HUB_URL is required and has no default. Set it to the base URL of your Vuer Hub API.

export VUER_HUB_URL="https://hub.vuer.ai/api"
# Optional: token for private hubs or authenticated operations
export VUER_AUTH_TOKEN="eyJhbGci..."
# Optional: enable dry-run mode to simulate operations (no network changes)
export VUER_CLI_DRY_RUN="1"

# Sync all environments from environment.json dependencies
# Reads environment.json in current directory, validates dependencies,
# and downloads all environments (including transitive deps) to vuer_environments/
vuer sync
vuer sync --output ./my-envs

# Publish an environment (requires environment.json in the directory)
vuer envs-publish --directory ./my-environment

# Pull an environment (download and unpack into a directory)
vuer envs-pull <environmentId>
vuer envs-pull my-environment/1.0.0

# Add an environment
vuer add --env <environmentId>

Sync Command Details

The sync command works like npm install:

1. Reads environment.json from the current directory
2. Parses the dependencies field (e.g., {"some-dependency": "1.2.3"})
3. Validates all dependencies exist in the backend
4. Fetches transitive dependencies for each environment
5. Downloads all environments (direct + transitive) to vuer_environments/ directory
6. Preserves environment.json inside downloaded environment directories

Publishing metadata (used by envs-publish)

{
  "name": "my-environment",
  "version": "v1.0.0",
  "description": "Demo robotic arm env",
  "visibility": "PUBLIC",
  "env-type": "isaac",
  "dependencies": {
    "my-environment-1": "v4.0.0"
  }
}

Fields and recommendations for publishing metadata

• name (string, required): logical name of the environment (no slashes). This becomes the directory name under vuer_environments/<name>/<version>/ when downloaded.
• version (string, required): environment version string. Use a stable, reproducible format (we recommend semantic style like v1.0.0).
• description (string, optional): short human-readable description of the environment.
• visibility (string, optional): publishing visibility, commonly PUBLIC or PRIVATE.
• env-type (string, optional): environment runtime/type identifier (for example isaac, gazebo, etc.).
• dependencies (object, optional): mapping of dependency-name → version (e.g. "some-dependency": "v1.2.3"). These declare upstream environment dependencies and are validated during publish.

Publishing notes

• envs-publish expects the target directory to contain a valid environment.json. At minimum name and version must be present; envs-publish will validate metadata before uploading to VUER_HUB_URL.
• The environment.json baked into an environment package is preserved when that package is later downloaded to vuer_environments/<name>/<version>/.
• Keep the publishing environment.json authoritative: use dependencies to declare exact name → version mappings for transitive resolution.

Project-level environment.json used by vuer sync

For projects that consume environments (i.e., run vuer sync), you usually keep a simple environment.json at the project root that focuses on the dependencies map:

{
  "dependencies": {
    "some-dependency": "v1.2.3",
    "another-dependency": "v4.5.6"
  }
}

Note: The project-level environment.json used by vuer sync typically only needs a dependencies mapping. The publishing environment.json (shown above) must include name and version.

Use vuer <command> --help for full options.

Add Command Details

• Purpose: add an environment dependency to the current directory's environment.json.
• Input: an environment identifier in canonical name/version form or a hub-specific environment ID (example: my-environment/1.0.0).
• Behavior: validates the environment exists on the configured VUER_HUB_URL and updates the dependencies section of environment.json. Run vuer sync afterwards to download the environment and its transitive dependencies into vuer_environments/.

Remove Command Details

• Purpose: remove a specific environment dependency from the current directory's environment.json.
• Input: a canonical name/version spec (exact match required).
• Behavior: removes only the exact name/version entry from environment.json. If the corresponding version directory exists under vuer_environments/<name>/<version>/, the local copy will be removed; empty parent directories are cleaned up automatically.

Upgrade Command Details

• Purpose: update an existing dependency in environment.json to a newer version.
• Input: a dependency name (to upgrade to the latest available) or an explicit name/version to target.
• Behavior: queries the configured hub for available versions, updates environment.json with the selected version, and leaves installation to vuer sync.

envs-publish Command Details

• Purpose: publish a prepared environment directory to the configured hub.
• Input: a local directory containing an environment.json and environment content.
• Behavior: validates the local environment metadata, then uploads the environment as a new version to VUER_HUB_URL. Authenticated operations require VUER_AUTH_TOKEN.

envs-pull Command Details

• Purpose: download an environment from the hub and place it into a local directory.
• Input: a hub environment ID or canonical name/version (e.g., my-environment/1.0.0).
• Behavior: downloads the environment and creates the nested path vuer_environments/<name>/<version>/ (or an alternate --output path), preserving the bundled environment.json metadata.