[SEC-2] Test Semgrep

.github/workflows/semgrep.yml

@@ -0,0 +1,40 @@
+# Name of this GitHub Actions workflow.
+name: Semgrep
+
+on:
+  # Scan changed files in PRs (diff-aware scanning):
+  pull_request: {}
+  # Scan mainline branches and report all findings: 
+  push:
+    branches: ["master", "main"]
+  # Schedule the CI job (this method uses cron syntax):
+  #schedule:
+  #  - cron: '30 0 1,15 * *' # Scheduled for 00:30 UTC on both the 1st and 15th of the month
+
+jobs:
+  semgrep:
+    # User-definable name of this GitHub Actions job:
+    name: Scan
+    # If you are self-hosting, change the following `runs-on` value: 
+    runs-on: ubuntu-latest
+
+    container:
+      # A Docker image with Semgrep installed. Do not change this.
+      image: returntocorp/semgrep
+
+    # Skip any PR created by dependabot to avoid permission issues:
+    if: (github.actor != 'dependabot[bot]')
+
+    steps:
+      # Fetch project source with GitHub Actions Checkout.
+      - uses: actions/checkout@v3
+      # Run the "semgrep ci" command on the command line of the docker image.
+      - run: semgrep ci
+        env:
+           # Add the rules that Semgrep uses by setting the SEMGREP_RULES environment variable. 
+           SEMGREP_RULES: p/default # more at semgrep.dev/explore
+
+           # Uncomment SEMGREP_TIMEOUT to set this job's timeout (in seconds):
+           # Default timeout is 1800 seconds (30 minutes).
+           # Set to 0 to disable the timeout.
+           # SEMGREP_TIMEOUT: 300