chore: license checker (#714)

Author: kevgo

.github/workflows/licenses.yml

@@ -0,0 +1,21 @@
+name: Licenses
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: "1.18"
+      - uses: actions/setup-node@v2
+        with:
+          node-version: "18"
+      - run: make licenses

Makefile

@@ -5,12 +5,18 @@ format: .bin/goimports node_modules  # formats the source code
 help:
 	@cat Makefile | grep '^[^ ]*:' | grep -v '^\.bin/' | grep -v '.SILENT:' | grep -v '^node_modules:' | grep -v help | sed 's/:.*#/#/' | column -s "#" -t
 
+licenses: .bin/licenses node_modules  # checks open-source licenses
+	.bin/licenses
+
 test:  # runs all tests
 	go test ./...
 
 .bin/goimports: Makefile
 	GOBIN=$(shell pwd)/.bin go install golang.org/x/tools/cmd/goimports@latest
 
+.bin/licenses: Makefile
+	curl https://raw.githubusercontent.com/ory/ci/master/licenses/install | sh
+
 node_modules: package-lock.json
 	npm ci
 	touch node_modules