feat: add initial buildpack

.github/.patch_files

@@ -0,0 +1,29 @@
+.github/.patch_files
+.github/.syncignore
+.github/CODEOWNERS
+.github/dependabot.yml
+.github/labels.yml
+.github/workflows/approve-bot-pr.yml
+.github/workflows/codeql-analysis.yml
+.github/workflows/go-get-update.yml
+.github/workflows/label-pr.yml
+.github/workflows/lint-yaml.yml
+.github/workflows/lint.yml
+.github/workflows/synchronize-labels.yml
+.github/workflows/test-pull-request.yml
+.github/workflows/update-dependencies.yml
+.github/workflows/update-dependencies-from-metadata.yml
+.github/workflows/update-github-config.yml
+.gitignore
+LICENSE
+NOTICE
+README.md
+go.mod
+go.sum
+scripts/.util/builders.sh
+scripts/.util/git.sh
+scripts/.util/print.sh
+scripts/.util/tools.json
+scripts/.util/tools.sh
+scripts/integration.sh
+scripts/unit.sh

.github/.syncignore

@@ -0,0 +1 @@
+CODEOWNERS

.github/dependabot.yml

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+---
+version: 2
+updates:
+- package-ecosystem: gomod
+  directory: "/"
+  schedule:
+    interval: daily

.github/labels.yml

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+- name: status/possible-priority
+  description: This issue is ready to work and should be considered as a potential priority
+  color: F9D0C4
+- name: status/prioritized
+  description: This issue has been triaged and resolving it is a priority
+  color: BFD4F2
+- name: status/blocked
+  description: This issue has been triaged and resolving it is blocked on some other issue
+  color: 848978
+- name: bug
+  description: Something isn't working
+  color: d73a4a
+- name: enhancement
+  description: A new feature or request
+  color: a2eeef
+- name: documentation
+  description: This issue relates to writing documentation
+  color: D4C5F9
+- name: help wanted
+  description: Extra attention is needed
+  color: 008672
+- name: semver:major
+  description: A change requiring a major version bump
+  color: 6b230e
+- name: semver:minor
+  description: A change requiring a minor version bump
+  color: cc6749
+- name: semver:patch
+  description: A change requiring a patch version bump
+  color: f9d0c4
+- name: good first issue
+  description: A good first issue to get started with
+  color: d3fc03
+- name: "failure:release"
+  description: An issue filed automatically when a release workflow run fails
+  color: f00a0a
+- name: "failure:push"
+  description: An issue filed automatically when a push buildpackage workflow run fails
+  color: f00a0a
+- name: "failure:update-dependencies"
+  description: An issue filed automatically when updating buildpack.toml dependencies fails in a workflow
+  color: f00a0a
+- name: "failure:go-get-update"
+  description: An issue filed automatically when a go get update workflow run fails
+  color: f00a0a
+- name: "failure:update-github-config"
+  description: An issue filed automatically when a github config update workflow run fails
+  color: f00a0a
+- name: "failure:approve-bot-pr"
+  description: An issue filed automatically when a PR auto-approve workflow run fails
+  color: f00a0a

.github/workflows/create-draft-release.yml

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+name: Create or Update Draft Release
+
+on:
+  push:
+    branches:
+    - main
+  repository_dispatch:
+    types: [ version-bump ]
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version of the release to cut (e.g. 1.2.3)'
+        required: false
+
+concurrency: release
+
+jobs:
+  unit:
+    name: Unit Tests
+    runs-on: ubuntu-22.04
+    outputs:
+      builders: ${{ steps.builders.outputs.builders }}
+    steps:
+    - name: Setup Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.20.x
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Run Unit Tests
+      run: ./scripts/unit.sh
+    - name: Get builders from integration.json
+      id: builders
+      run: |
+        source "${{ github.workspace }}/scripts/.util/builders.sh"
+        builders="$(util::builders::list "${{ github.workspace }}/integration.json")"
+        printf "Output: %s\n" "${builders}"
+        printf "builders=%s\n" "${builders}" >> "$GITHUB_OUTPUT"
+
+  integration:
+    name: Integration Tests
+    runs-on: ubuntu-22.04
+    needs: unit
+    strategy:
+      matrix:
+        builder: ${{ fromJSON(needs.unit.outputs.builders) }}
+      fail-fast: false  # don't cancel all test jobs when one fails
+    steps:
+    - name: Setup Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.20.x
+    - name: Checkout
+      uses: actions/checkout@v3
+    - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/* || true
+    - name: Run Integration Tests
+      run: ./scripts/integration.sh --use-token --builder ${{ matrix.builder }}
+      env:
+        GIT_TOKEN: ${{ github.token }}
+
+  release:
+    name: Release
+    runs-on: ubuntu-22.04
+    needs: integration
+    steps:
+    - name: Setup Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.20.x
+    - name: Checkout
+      uses: actions/checkout@v3
+    - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/* || true
+    - name: Reset Draft Release
+      id: reset
+      uses: paketo-buildpacks/github-config/actions/release/reset-draft@main
+      with:
+        repo: ${{ github.repository }}
+        token: ${{ github.token }}
+    - name: Calculate Semver Tag
+      if: github.event.inputs.version == ''
+      id: semver
+      uses: paketo-buildpacks/github-config/actions/tag/calculate-semver@main
+      with:
+        repo: ${{ github.repository }}
+        token: ${{ github.token }}
+        ref-name: ${{ github.ref_name }}
+    - name: Set Release Tag
+      id: tag
+      run: |
+        tag="${{ github.event.inputs.version }}"
+        if [ -z "${tag}" ]; then
+          tag="${{ steps.semver.outputs.tag }}"
+        fi
+        echo "tag=${tag}" >> "$GITHUB_OUTPUT"
+    - name: Package
+      run: ./scripts/package.sh --version "${{ steps.tag.outputs.tag }}"
+    - name: Create Release Notes
+      id: create-release-notes
+      uses: paketo-buildpacks/github-config/actions/release/notes@main
+      with:
+        repo: ${{ github.repository }}
+        token: ${{ secrets.NINE_BOT_GITHUB_TOKEN }}
+    - name: Create Release
+      uses: paketo-buildpacks/github-config/actions/release/create@main
+      with:
+        repo: ${{ github.repository }}
+        token: ${{ secrets.NINE_BOT_GITHUB_TOKEN }}
+        tag_name: v${{ steps.tag.outputs.tag }}
+        target_commitish: ${{ github.sha }}
+        name: v${{ steps.tag.outputs.tag }}
+        body: ${{ steps.create-release-notes.outputs.release_body }}
+        draft: true
+        assets: |
+          [
+            {
+              "path": "build/buildpack.tgz",
+              "name": "${{ github.event.repository.name }}-${{ steps.tag.outputs.tag }}.tgz",
+              "content_type": "application/gzip"
+            },
+            {
+              "path": "build/buildpackage.cnb",
+              "name": "${{ github.event.repository.name }}-${{ steps.tag.outputs.tag }}.cnb",
+              "content_type": "application/gzip"
+            }
+          ]

.github/workflows/lint-yaml.yml

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+name: Lint Workflows
+
+on:
+  pull_request:
+    paths:
+    - '.github/**.yml'
+    - '.github/**.yaml'
+
+jobs:
+  lintYaml:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Checkout github-config
+      uses: actions/checkout@v3
+      with:
+        repository: paketo-buildpacks/github-config
+        path: github-config
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.8
+
+    - name: Install yamllint
+      run: pip install yamllint
+
+    - name: Lint YAML files
+      run: yamllint ./.github -c github-config/.github/.yamllint

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-22.04
+    steps:
+    - name: Setup Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.20.x
+
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: golangci-lint
+      uses: golangci/golangci-lint-action@v3
+      with:
+        version: latest
+        args: --timeout 3m0s

.github/workflows/push-buildpackage.yml

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+name: Push Buildpackage
+
+on:
+  release:
+    types:
+    - published
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  push:
+    name: Push
+    runs-on: ubuntu-22.04
+    steps:
+
+    - name: Parse Event
+      id: event
+      run: |
+        FULL_VERSION="$(jq -r '.release.tag_name' "${GITHUB_EVENT_PATH}" | sed s/^v//)"
+        MINOR_VERSION="$(echo "${FULL_VERSION}" | awk -F '.' '{print $1 "." $2 }')"
+        MAJOR_VERSION="$(echo "${FULL_VERSION}" | awk -F '.' '{print $1 }')"
+        echo "tag_full=${FULL_VERSION}" >> "$GITHUB_OUTPUT"
+        echo "tag_minor=${MINOR_VERSION}" >> "$GITHUB_OUTPUT"
+        echo "tag_major=${MAJOR_VERSION}" >> "$GITHUB_OUTPUT"
+        echo "download_url=$(jq -r '.release.assets[] | select(.name | endswith(".cnb")) | .url' "${GITHUB_EVENT_PATH}")" >> "$GITHUB_OUTPUT"
+
+    - name: Download
+      id: download
+      uses: paketo-buildpacks/github-config/actions/release/download-asset@main
+      with:
+        url: ${{ steps.event.outputs.download_url }}
+        output: "/github/workspace/buildpackage.cnb"
+        token: ${{ secrets.NINE_BOT_GITHUB_TOKEN }}
+
+    - name: Validate version
+      run: |
+        buidpackTomlVersion=$(sudo skopeo inspect "oci-archive:${GITHUB_WORKSPACE}/buildpackage.cnb" | jq -r '.Labels."io.buildpacks.buildpackage.metadata" | fromjson | .version')
+        githubReleaseVersion="${{ steps.event.outputs.tag_full }}"
+        if [[ "$buidpackTomlVersion" != "$githubReleaseVersion" ]]; then
+          echo "Version in buildpack.toml ($buidpackTomlVersion) and github release ($githubReleaseVersion) are not identical"
+          exit 1
+        fi
+
+    - name: Push to GHCR
+      run: |
+        sudo skopeo login --username ${{ github.actor }} --password "${{ secrets.GITHUB_TOKEN }}" "${{ env.REGISTRY }}"
+        sudo skopeo copy "oci-archive:${GITHUB_WORKSPACE}/buildpackage.cnb" "docker://${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.event.outputs.tag_full }}"
+        sudo skopeo copy "oci-archive:${GITHUB_WORKSPACE}/buildpackage.cnb" "docker://${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.event.outputs.tag_minor }}"
+        sudo skopeo copy "oci-archive:${GITHUB_WORKSPACE}/buildpackage.cnb" "docker://${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.event.outputs.tag_major }}"
+        sudo skopeo copy "oci-archive:${GITHUB_WORKSPACE}/buildpackage.cnb" "docker://${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest"