MNT Check licenses

.github/workflows/licenses.yml

@@ -0,0 +1,146 @@
+name: Licenses
+
+# This workflow will check the licences of any installed composer and  NPM dependencies against a list of
+# allowed SPDX identifiers of open source licences. These are contained env variable $SPDX_ALLOWED_DELIMITED
+# If any installed non-dev dependencies are found that are not in the allowed list then the job will fail.
+# See https://spdx.org/licenses/ for a list of SPDX identifiers.
+# Note that the `Unlicense` is an SPDX identifier for an actual license and not a placeholder for a missing license.
+
+on:
+  # At 4 AM UTC, only on Saturday
+  workflow_dispatch:
+  schedule:
+    - cron: '0 4 * * 6'
+
+permissions: {}
+
+jobs:
+  checklicenses:
+    name: Check licenses
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    env:
+      SPDX_ALLOWED_DELIMITED: 'MIT;MIT-0;ISC;0BSD;BSD-2-Clause;BSD-3-Clause;Apache-2.0;Python-2.0;CC0-1.0;CC-BY-3.0;CC-BY-4.0;Public Domain;Unlicense'
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+
+      - name: Get PHP version
+        id: phpversion
+        run: |
+          # Get the PHP version to use from composer.json
+          PHP=$(jq -r '.require["php"]' composer.json)
+          # Remove the leading caret
+          PHP=${PHP//^/}
+          echo "::set-output name=version::$PHP"
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@c541c155eee45413f5b09a52248675b1a2575231 # v2.31.1
+        with:
+          php-version: ${{ steps.phpversion.outputs.version }}
+          extensions: curl, dom, gd, intl, json, ldap, mbstring, mysql, tidy, zip
+          tools: composer:v2
+
+      - name: Composer install
+        run: composer install
+
+      - name: Composer licenses
+        run: |
+          # Validate licenses of all composer dependencies are allowed
+          echo "Checking licenses of all dependencies"
+          composer global require madewithlove/license-checker
+          COMPOSER_GLOBAL_HOME=$(composer -q -n config --global home)
+          # Update the licenses in installed.json file to be sorted so that allowed SPDX identifier
+          # are at the top of the list. This is done because the license-checker will only check the first SPDX.
+          SPDX_ALLOWED_DELIMITED=$SPDX_ALLOWED_DELIMITED php -r '
+            $allowedSpdxDelimted = getenv("SPDX_ALLOWED_DELIMITED");
+            $allowedSpdx = explode(";", $allowedSpdxDelimted);
+            $filename = "vendor/composer/installed.json";
+            $contents = file_get_contents("vendor/composer/installed.json");
+            $json = json_decode($contents, true);
+            foreach ($json["packages"] as &$package) {
+              if (!isset($package["license"])) {
+                throw new Exception("License field missing for package " . $package["name"]);
+              }
+              usort($package["license"], fn ($spdx) => in_array($spdx, $allowedSpdx) ? -1 : 1);
+            }
+            file_put_contents($filename, json_encode($json, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+          '
+          # Translate " " to "_" (and back again later) for any SPDX that has a space in it, such as "Public Domain"
+          # Otherwise the bash for loop will split on the space
+          SPDX_ALLOWED_LIST=$(echo $SPDX_ALLOWED_DELIMITED | tr " " "_" | tr ";" "\n")
+          SPDX_USED_LIST=$($COMPOSER_GLOBAL_HOME/vendor/bin/license-checker --no-dev used)
+          for SPDX_USED in $SPDX_USED_LIST; do
+            IS_ALLOWED=0
+            for SPDX_ALLOWED in $SPDX_ALLOWED_LIST; do
+              SPDX_ALLOWED=$(echo $SPDX_ALLOWED | tr "_" " ")
+              if [[ $SPDX_USED == $SPDX_ALLOWED ]]; then
+                IS_ALLOWED=1
+                break
+              fi
+            done
+            if [[ $IS_ALLOWED == 0 ]]; then
+              echo "License $SPDX_USED found in composer dependencies is not allowed. Check vendor/composer/installed.json"
+              exit 1
+            fi
+          done
+          # Remove license-checker as its name will collide with the npm license checker
+          composer global remove madewithlove/license-checker
+          echo "All licenses are allowed"
+
+      - name: NPM licenses
+        run: |
+          # Set nvmdir explicitly before installation. Default dir doesn't work for some reason.
+          export NVM_DIR="${HOME}/.nvm"
+          # Installation fails if install dir is specified but doesn't exist
+          if ! [[ -d "$NVM_DIR" ]]; then
+            echo "NVM_DIR '$NVM_DIR' doesn't exist - creating it now"
+            mkdir $NVM_DIR
+          fi
+          # Get install nvm script from gha-run-tests
+          curl -s https://raw.githubusercontent.com/silverstripe/gha-run-tests/refs/heads/1/install-nvm.sh > install-nvm.sh
+          chmod +x install-nvm.sh
+          ./install-nvm.sh
+          if [[ $? != 0 ]]; then
+            echo "Error while installing nvm"
+            exit 1
+          fi
+          # This loads nvm
+          [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+          EXCLUDE_PACKAGES='@silverstripe/[email protected];[email protected];[email protected];[email protected];[email protected]'
+          # Loop all package.json files that were previously installed by composer install
+          BASEDIR=$(pwd)
+          FILES=$(find . | grep package.json | grep -v node_modules | grep -v tinymce)
+          for FILE in $FILES; do
+            # remove trailing "/package.json"
+            SUBDIR="${FILE/\/package.json/}"
+            DIR="$BASEDIR/$SUBDIR"
+            echo "Checking $DIR"
+            cd $DIR
+            if [[ ! -f .nvmrc ]]; then
+              echo "Missing .nvmrc"
+              exit 1
+            fi
+            nvm install
+            nvm use
+            if [[ -z $(which yarn) ]]; then
+              npm install -g yarn;
+            fi
+            yarn install --network-concurrency 1
+            DEPS=$(jq -r '.dependencies' package.json)
+            if [[ $DEPS == "null" ]] || [[ $DEPS == "{}" ]]; then
+              echo "No non-dev dependencies found in $DIR"
+              continue
+            fi
+            if [[ -z $(which license-checker) ]]; then
+              echo "Installing license-checker"
+              npm install -g license-checker
+            fi
+            license-checker --production --unknown --out /dev/null --onlyAllow "$SPDX_ALLOWED_DELIMITED" --excludePackages "$EXCLUDE_PACKAGES"
+            echo "All licenses are allowed for $DIR"
+          done
+          echo "Passed"