Prepare for open source

.github/workflows/ci.yml

@@ -19,6 +19,9 @@ jobs:
       - name: Build
         run: go build ./...
 
+      - name: Verify binary builds
+        run: go build -o unity-packager .
+
       - name: Unit tests
         run: go test ./...
 

.github/workflows/release.yml

@@ -0,0 +1,62 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - goos: darwin
+            goarch: arm64
+          - goos: linux
+            goarch: amd64
+          - goos: linux
+            goarch: arm64
+          - goos: windows
+            goarch: amd64
+          - goos: windows
+            goarch: arm64
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Build
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+        run: |
+          ext=""
+          if [ "${{ matrix.goos }}" = "windows" ]; then ext=".exe"; fi
+          go build -o unity-packager-${{ matrix.goos }}-${{ matrix.goarch }}${ext} .
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: unity-packager-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: unity-packager-*
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          merge-multiple: true
+
+      - name: Create release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          files: unity-packager-*

CONTRIBUTING.md

@@ -0,0 +1,54 @@
+# Contributing to unity-packager
+
+Thanks for your interest in contributing! Here's how to get started.
+
+## Getting Started
+
+1. Fork the repository
+2. Clone your fork: `git clone https://github.com/<your-username>/unity-packager.git`
+3. Create a branch: `git checkout -b my-feature`
+4. Make your changes
+5. Run tests: `go test ./...`
+6. Push and open a pull request
+
+## Development
+
+Build and test:
+
+```bash
+go build ./...           # build
+go test ./...            # unit tests
+go test -tags=integration -timeout 5m ./...  # integration tests (requires network)
+```
+
+Integration tests download real packages from GitHub, NuGet, and HTTP archives, so they need network access and take longer to run. They're behind the `integration` build tag.
+
+## Pull Requests
+
+- Keep PRs focused on a single change
+- Include tests for new functionality
+- Make sure `go test ./...` passes before submitting
+- Update documentation if you're adding or changing config options
+
+## Adding a New Package Type
+
+If you want to add a new package source type:
+
+1. Add the type constant to `internal/config/config.go` and update `Validate()`
+2. Create a handler in `internal/packager/` (see `git.go` or `nuget.go` for examples)
+3. Wire it into `processPackage()` in `internal/packager/packager.go`
+4. Add cache support in `internal/packager/cache.go` if the source is downloadable
+5. Add unit tests and an integration test
+
+## Reporting Bugs
+
+Open an issue with:
+
+- What you expected to happen
+- What actually happened
+- Your `Packages/upstream-packages.json` config (or the file specified via `-config`; redact private URLs if needed)
+- Output from running with `-verbose`
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the MIT License.

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Hogni Thor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.