feat: add OWASP dependency-check CVE scanning workflow

Adds CVE scanning via the org.owasp.dependencycheck Gradle plugin
(v12.2.0) and a GitHub Actions workflow.

- dependencyCheckAggregate task scans all subproject dependencies
- NVD API key passed via secret, scoped to the scan step only
- NVD database cached per run_id with restore-keys fallback to keep
  the cached DB incrementally up to date across runs
- Suppression file and failOnCVSS=5 configured in build.gradle
- CI/CVE status badges added to README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: coopernetes

.github/workflows/cve.yml

@@ -10,24 +10,28 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # ratchet:actions/checkout@v6
+      - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # ratchet:actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
       - name: Build project with Gradle
         run: ./gradlew clean testClasses
-      - name: Depcheck
-        uses: dependency-check/Dependency-Check_Action@1e54355a8b4c8abaa8cc7d0b70aa655a3bb15a6c
-        id: Depcheck
+      - name: Cache CVE data
+        id: cache-cve
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # ratchet:actions/cache@v5
         with:
-          project: 'jgit-proxy'
-          path: '.'
-          format: 'HTML'
-          out: 'reports' # this is the default, no need to specify unless you wish to override it
-          args: >
-            --suppression gradle-suppressions.xml
-            --failOnCVSS 5
-            --enableRetired
+          path: ~/.gradle/dependency-check-data/
+          key: depcheck-db-${{ github.run_id }}
+          restore-keys: depcheck-db-
+      - name: Depcheck
+        run: ./gradlew dependencyCheckAggregate
+        env:
+          NVD_API_KEY: ${{ secrets.NVD_API_KEY }}
 
       - name: Upload Test results
         if: ${{ always() }}
         uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # ratchet:actions/upload-artifact@v7
         with:
           name: Depcheck report
-          path: ${{ github.workspace }}/reports
+          path: ${{ github.workspace }}/build/reports/dependency-check*

CLAUDE.md

@@ -90,6 +90,16 @@ Configured via `database.type` in YAML. Supported: `memory`, `h2-mem`, `h2-file`
 
 Always use fully qualified image names (e.g. `docker.io/eclipse-temurin:21-jre`). Podman on Fedora enforces short-name resolution and will error without a TTY if bare names are used.
 
+## GitHub Actions workflows
+
+All action steps must be pinned to a commit hash. After adding or updating any action reference in `.github/workflows/`, run:
+
+```bash
+ratchet pin .github/workflows/<file>.yml
+```
+
+This rewrites version tags (e.g. `@v5`) to their resolved commit SHA and adds a `# ratchet:` comment preserving the original tag for readability.
+
 ## Branch / PR target
 
 Default branch for PRs: **`jetty`**

README.md

@@ -1,3 +1,6 @@
+[![CI](https://github.com/coopernetes/jgit-proxy/actions/workflows/ci.yml/badge.svg)](https://github.com/coopernetes/jgit-proxy/actions/workflows/ci.yml)
+[![CVE Scanning](https://github.com/coopernetes/jgit-proxy/actions/workflows/cve.yml/badge.svg)](https://github.com/coopernetes/jgit-proxy/actions/workflows/cve.yml)
+
 # git-proxy in Java
 This is a simple implementation of a git proxy in Java. This is a possible successor to [finos/git-proxy](https://github.com/finos/git-proxy) which is written in Node.
 

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'com.diffplug.spotless' version '8.4.0' apply false
+    id 'org.owasp.dependencycheck' version '12.2.0'
 }
 
 ext {
@@ -16,8 +17,15 @@ allprojects {
             url 'https://repo.eclipse.org/content/groups/releases/'
         }
     }
+    dependencyCheck {
+        nvd.apiKey = System.getenv("NVD_API_KEY")
+        failBuildOnCVSS = 5
+        suppressionFile = rootProject.file('gradle-suppressions.xml').toString()
+
+    }
 }
 
+
 subprojects {
     apply plugin: 'com.diffplug.spotless'
 
@@ -42,4 +50,4 @@ subprojects {
             finalizedBy jacocoTestReport
         }
     }
-}
+}