Add force flag to plugin install

.github/workflows/test.yml

@@ -151,6 +151,40 @@ jobs:
         ibmcloud plugin list | grep -q '^secrets-manager\b' &&
         ibmcloud plugin list | grep -q '^container-registry\b.\+1\.3\.\b'
 
+  test-plugins-already-installed:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up ibmcloud CLI
+        uses: ./
+        with:
+          plugins: container-service
+      - name: Set up ibmcloud CLI (again)
+        uses: ./
+        with:
+          plugins: container-service secrets-manager
+      - name: Check plugins are installed
+        run: |
+          ibmcloud plugin list | grep -q '^container-service\b' &&
+          ibmcloud plugin list | grep -q '^secrets-manager\b'
+
+  test-plugins-already-installed-with-older-versions:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up ibmcloud CLI
+        uses: ./
+        with:
+          plugins: container-service@0.4.102
+      - name: Set up ibmcloud CLI (again)
+        uses: ./
+        with:
+          plugins: container-service secrets-manager
+      - name: Check plugins are installed
+        run: |
+          ibmcloud plugin list | grep -q '^container-service\b' &&
+          ibmcloud plugin list | grep -q '^secrets-manager\b'
+
   test-login:
     runs-on: ubuntu-latest
     steps:

src/main.js

@@ -67,7 +67,7 @@ async function installPlugins() {
   const plugins = core.getInput('plugins').replace(/\n/g, ' ').replace(/,/g, ' ').split(' ').map(p => p.trim()).filter(p => p)
   if (plugins.length > 0) {
     core.startGroup('Installing IBM Cloud CLI plugins')
-    await exec.exec('ibmcloud', ['plugin', 'install', ...plugins])
+    await exec.exec('ibmcloud', ['plugin', 'install', ...plugins, '-f'])
     core.endGroup()
     await exec.exec('ibmcloud', ['plugin', 'list'])
   }