ithinkihaveacat/jetpack

Jetpack Library Utilities

Important: Use Script First

ALWAYS use scripts/jetpack over raw curl and xmllint commands. The script is located in the scripts/ subdirectory of this skill's folder. It provides features that raw commands do not:

• Package-to-coordinate resolution with exceptions table
• Code search integration for finding artifacts by class name
• Version type handling (ALPHA, BETA, STABLE, SNAPSHOT)
• Kotlin Multiplatform platform-specific source detection
• Build ID resolution for pinned snapshots

When to read the script source: If the script doesn't do exactly what you need, or fails due to missing dependencies, read the script source. It encodes Maven repository URL patterns, version filtering logic, and package naming heuristics—use it as reference when building similar functionality.

Quick Start

Requirements: curl, xmllint (libxml2-utils), jar (JDK), jq, perl.

Highest-Value Commands

• Inspect a class (most common): scripts/jetpack inspect androidx.wear.tiles.TileService
• Search for a library: scripts/jetpack search androidx.wear.compose
• Check stable version: scripts/jetpack version androidx.wear.tiles:tiles STABLE
• Resolve package to Maven coordinate: scripts/jetpack resolve androidx.lifecycle.ViewModel
• Download bleeding-edge source: scripts/jetpack source androidx.compose.ui:ui SNAPSHOT
• Download reference sample code: scripts/jetpack-samples androidx.compose.remote:remote-creation-compose

Subcommand Overview

version

Purpose: Get specific version type (ALPHA, BETA, SNAPSHOT, etc.) for a package. Usage: scripts/jetpack version PACKAGE [TYPE] [REPO] Options: ALPHA, BETA, RC, STABLE, LATEST, SNAPSHOT.

list versions

Purpose: List all versions for a package. Usage: scripts/jetpack list versions PACKAGE [REPO]

resolve

Purpose: Convert Android package/class name to Maven coordinate. Usage: scripts/jetpack resolve PACKAGE_OR_CLASS Note: Uses heuristic rules and an exceptions table.

search

Purpose: Search for artifacts by package or class name. Usage: scripts/jetpack search [OPTIONS] QUERY Options: --index (package names), --code (class names), --force (rebuild cache).

source

Purpose: Download and extract source JARs. Usage: scripts/jetpack source PACKAGE... [VERSION] Options: --output DIR to specify destination, --find PATTERN to locate specific files.

inspect

Purpose: Convenience wrapper combining search/resolve + source. Usage: scripts/jetpack inspect CLASS_NAME [VERSION] Note: Best for quickly checking implementation details; uses code search if direct resolution fails.

list dependencies

Purpose: List direct Maven dependencies for an artifact. Usage: scripts/jetpack list dependencies ARTIFACT [VERSION]

resolve-exceptions

Purpose: Find missing exceptions for the resolve command. Usage: scripts/jetpack resolve-exceptions COORDINATE [VERSION]

Standalone Scripts

scripts/jetpack-samples

Purpose: Download non-published reference samples and integration tests. Usage: scripts/jetpack-samples ARTIFACT [--output DIR] Details: Locates files from the AOSP source structure and aggregates into readable components locally.

Version Types

Symbolic (Floating)

Resolves to the latest matching version at runtime.

• ALPHA: Latest alpha (e.g., 1.2.0-alpha05)
• BETA: Latest beta (e.g., 1.2.0-beta02)
• RC: Latest release candidate (e.g., 1.2.0-rc01)
• STABLE: Latest stable release (e.g., 1.1.0)
• LATEST: Latest version of any kind.
• SNAPSHOT: Latest build from androidx.dev.

Pinned (Immutable)

Always resolve to the exact same code.

• Version String: Specific version (e.g., 1.6.0-alpha01).
• Build ID: Specific snapshot build (e.g., 14710011 from androidx.dev/snapshots/builds).

Common Workflows

Inspecting a Class Implementation

cd "$(scripts/jetpack inspect androidx.wear.tiles.TileService)"
# Browse source files...

Finding a Library

# Find libraries related to 'wear.compose'
scripts/jetpack search androidx.wear.compose

# Find which artifact contains 'RemoteImage'
scripts/jetpack search RemoteImage

Checking Available Versions

# List all versions
scripts/jetpack list versions androidx.wear.tiles:tiles

# Check specific version types
scripts/jetpack version androidx.wear.tiles:tiles ALPHA
scripts/jetpack version androidx.wear.tiles:tiles SNAPSHOT

Working with Bleeding-Edge Code

scripts/jetpack source androidx.compose.remote:remote-creation-compose SNAPSHOT

Finding Maven Coordinate

scripts/jetpack resolve androidx.core.splashscreen.SplashScreen
# Output: androidx.core:core-splashscreen

Safety Notes

• Network Access: Requires access to dl.google.com, androidx.dev, and cs.android.com.
• SNAPSHOTs: Change frequently; use pinned versions or Build IDs for reproducibility.
• Kotlin Multiplatform: source and inspect automatically download platform-specific sources (e.g., -android, -desktop) if detected in the POM.

Reference Material

• Command Reference: Detailed usage, arguments, and raw commands for all subcommands. See references/command-index.md.
• Troubleshooting: Solutions for network errors, missing dependencies, and search failures. See references/troubleshooting.md.