Run script/mirror verify on GitHub Actions too

* So the shasums are checked in PRs.

.github/workflows/ci.yml

@@ -11,5 +11,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
     - run: git clone --depth 1 https://github.com/sstephenson/bats.git
     - run: PATH="./bats/bin:$PATH" script/test
+      env:
+        COMMIT_RANGE: ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}

script/test

@@ -1,13 +1,18 @@
 #!/usr/bin/env bash
 set -e
+set -x
 
 STATUS=0
 bats ${CI:+--tap} test || STATUS="$?"
 
+if [ -n "$TRAVIS_COMMIT_RANGE" ]; then
+  COMMIT_RANGE="$TRAVIS_COMMIT_RANGE"
+fi
+
 if [ "$TRAVIS_SECURE_ENV_VARS" = "true" ]; then
-  ./script/mirror update "$TRAVIS_COMMIT_RANGE"
-elif [ "${TRAVIS_PULL_REQUEST:-false}" != "false" ]; then
-  ./script/mirror verify "$TRAVIS_COMMIT_RANGE"
+  ./script/mirror update "$COMMIT_RANGE"
+elif [ "${TRAVIS_PULL_REQUEST:-false}" != "false" ] || [ "$GITHUB_EVENT_NAME" = "pull_request" ]; then
+  ./script/mirror verify "$COMMIT_RANGE"
 fi
 
 exit "$STATUS"