Add CI workflow to check for unapproved Go dependency licenses

.github/workflows/check-go-dependencies-task.yml

@@ -0,0 +1,140 @@
+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-go-dependencies-task.md
+name: Check Go Dependencies
+
+env:
+  # See: https://github.com/actions/setup-go/tree/main#supported-version-syntax
+  GO_VERSION: "1.18.3"
+
+# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
+on:
+  create:
+  push:
+    paths:
+      - ".github/workflows/check-go-dependencies-task.ya?ml"
+      - ".licenses/**"
+      - ".licensed.json"
+      - ".licensed.ya?ml"
+      - "Taskfile.ya?ml"
+      - "**/.gitmodules"
+      - "**/go.mod"
+      - "**/go.sum"
+  pull_request:
+    paths:
+      - ".github/workflows/check-go-dependencies-task.ya?ml"
+      - ".licenses/**"
+      - ".licensed.json"
+      - ".licensed.ya?ml"
+      - "Taskfile.ya?ml"
+      - "**/.gitmodules"
+      - "**/go.mod"
+      - "**/go.sum"
+  schedule:
+    # Run periodically to catch breakage caused by external changes.
+    - cron: "0 8 * * WED"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  run-determination:
+    runs-on: ubuntu-latest
+    outputs:
+      result: ${{ steps.determination.outputs.result }}
+    steps:
+      - name: Determine if the rest of the workflow should run
+        id: determination
+        run: |
+          RELEASE_BRANCH_REGEX="refs/heads/[0-9]+.[0-9]+.x"
+          # The `create` event trigger doesn't support `branches` filters, so it's necessary to use Bash instead.
+          if [[
+            "${{ github.event_name }}" != "create" ||
+            "${{ github.ref }}" =~ $RELEASE_BRANCH_REGEX
+          ]]; then
+            # Run the other jobs.
+            RESULT="true"
+          else
+            # There is no need to run the other jobs.
+            RESULT="false"
+          fi
+
+          echo "::set-output name=result::$RESULT"
+
+  check-cache:
+    needs: run-determination
+    if: needs.run-determination.outputs.result == 'true'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Install licensed
+        uses: jonabc/setup-licensed@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Update dependencies license metadata cache
+        run: task --silent general:cache-dep-licenses
+
+      - name: Check for outdated cache
+        id: diff
+        run: |
+          git add .
+          if ! git diff --cached --color --exit-code; then
+            echo
+            echo "::error::Dependency license metadata out of sync. See: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-go-dependencies-task.md#metadata-cache"
+            exit 1
+          fi
+
+      # Some might find it convenient to have CI generate the cache rather than setting up for it locally
+      - name: Upload cache to workflow artifact
+        if: failure() && steps.diff.outcome == 'failure'
+        uses: actions/upload-artifact@v3
+        with:
+          if-no-files-found: error
+          name: dep-licenses-cache
+          path: .licenses/
+
+  check-deps:
+    needs: run-determination
+    if: needs.run-determination.outputs.result == 'true'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - name: Install licensed
+        uses: jonabc/setup-licensed@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Check for dependencies with unapproved licenses
+        run: task --silent general:check-dep-licenses

.gitignore

@@ -1,4 +1,5 @@
 .old
 build.sh
-arduino-language-server*
+/arduino-language-server*
+!/arduino-language-server*/
 /node_modules/

.licensed.yml

@@ -0,0 +1,68 @@
+# See: https://github.com/github/licensed/blob/master/docs/configuration.md
+sources:
+  go: true
+
+apps:
+  - source_path: ./
+
+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-dependencies/Apache-2.0/.licensed.yml
+allowed:
+  # Based on https://www.apache.org/legal/resolved.html#category-a
+  - apache-2.0
+  - apache-1.1
+  - php-3.01
+  # "MX4J License" - no SPDX ID
+  - bsd-2-clause
+  - bsd-2-clause-netbsd # Deprecated ID for `bsd-2-clause`
+  - bsd-2-clause-views
+  - bsd-2-clause-freebsd # Deprecated ID for `bsd-2-clause-views`
+  - bsd-3-clause
+  - bsd-3-clause-clear
+  # "DOM4J License" - no SPDX ID
+  - postgresql
+  # "Eclipse Distribution License 1.0" - no SPDX ID
+  - mit
+  - x11
+  - isc
+  - smlnj
+  - standardml-nj # Deprecated ID for `smlnj`
+  # "Cup Parser Generator" - no SPDX ID
+  - icu
+  - ncsa
+  - w3c
+  # "W3C Community Contributor License Agreement" - no SPDX ID
+  - xnet
+  - zlib
+  # "FSF autoconf license" - no SPDX ID
+  - afl-3.0
+  # "Service+Component+Architecture+Specifications" - no SPDX ID
+  # "OOXML XSD ECMA License"
+  - ms-pl
+  - cc-pddc
+  - psf-2.0
+  # "Python Imaging Library Software License"
+  - apafml
+  - bsl-1.0
+  - ogl-uk-3.0
+  - wtfpl
+  - unicode-tou
+  - zpl-2.0
+  # "ACE license" - no SPDX ID
+  - upl-1.0
+  # "Open Grid Forum License" - no SPDX ID
+  # 'Google "Additional IP Rights Grant (Patents)" file' - no SPDX ID
+  - unlicense
+  - hpnd
+  - mulanpsl-2.0
+  - cc0-1.0
+  # Based on individual license text
+  - lgpl-2.0-or-later
+  - lgpl-2.0+ # Deprecated ID for `lgpl-2.0-or-later`
+  - lgpl-2.1-only
+  - lgpl-2.1 # Deprecated ID for `lgpl-2.1-only`
+  - lgpl-2.1-or-later
+  - lgpl-2.1+ # Deprecated ID for `lgpl-2.1-or-later`
+  - lgpl-3.0-only
+  - lgpl-3.0 # Deprecated ID for `lgpl-3.0-only`
+  - lgpl-3.0-or-later
+  - lgpl-3.0+ # Deprecated ID for `lgpl-3.0-or-later`