# skymap.build

> skymap.build is an Agent Skill for devops & security published in the sky-map-team/stardroid repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Build, test, deploy, and manage data generation for Sky Map. Trigger on "build the app", "run tests", "deploy to device", "generate data", "run lint", or similar build/dev workflow requests.

- Skill name: `skymap.build`
- Category: [DevOps & Security](https://www.openparable.com/skill/devops-security/1)
- Source: https://github.com/sky-map-team/stardroid/blob/HEAD/stardroid-v1/.claude/skills/skymap.build/SKILL.md
- Repository: sky-map-team/stardroid (1,746 GitHub stars when collected)

## SKILL.md

# Sky Map Build & Dev Workflow

## Environment Setup

Always set before building:

```bash
export JAVA_HOME=$(/usr/libexec/java_home -v 17)
export ANDROID_HOME=~/Library/Android/sdk
```

`local.properties` must exist in the repo root with `sdk.dir=<path to Android SDK>`.
You will also need a `no-checkin.properties` in the `app` folder. If using a new
git worktree you should attempt to copy these files out of the current main folder.

## Build Flavors

- **gms** — Google Play Services (Analytics, Location). Requires `no-checkin.properties` for release builds.
- **fdroid** — Pure open source, no Google dependencies.

Always specify the flavor. Never use bare `assembleDebug`.

## Build Commands
Prefer to use the shell scripts:
```bash
# Full rebuild including data generation
./build.sh             # Skip data regeneration
./build.sh -d          # Build the debug version
./build.sh --full      # GMS including data generation
./build.sh --fdroid    # F-Droid
```
but you can also use gradlew directly:
```bash
# Debug APK
./gradlew :app:assembleGmsDebug
./gradlew :app:assembleFdroidDebug

# Release bundle
./gradlew :app:bundleGmsRelease
```
Prefer not using the -fullk option unless you are adding/removing strings.

## Testing

```bash
# All unit tests
./gradlew test

# App module unit tests only
./gradlew app:test

# Instrumented tests (requires connected device/emulator)
./gradlew app:connectedAndroidTest
```

## Linting

```bash
./gradlew lint
```

## Data Generation

Run when modifying star catalogs or astronomical data:

```bash
cd tools
./generate.sh   # Creates ASCII protocol buffers
./binary.sh     # Converts to binary in app/src/main/assets/
```

## Deployment to a phone

```bash
./deploy.sh       # Deploy to connected device or emulator
./deploy.sh -p    # Deploy to a physical device
./deploy.sh -d    # Deploy a debug build
./deploy.sh --frdroid # Deploy the fdroid build
./undeploy.sh     # Uninstall the app
```

### Common Deployment Issues

- `INSTALL_FAILED_UPDATE_INCOMPATIBLE`: uninstall the Play Store version first — `adb uninstall com.google.android.stardroid`
- Device shows offline: `adb kill-server && adb start-server`

---

Source: https://www.openparable.com/skill/devops-security/skymap-build (OpenParable). Cite the canonical URL above.