.github/workflows/ci.yml

@@ -79,26 +79,3 @@ jobs:
             echo "::error::Should have failed"
             exit 1
           fi
-
-  cache-image:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        cache:
-          - true
-          - false
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Set up QEMU
-        id: qemu
-        uses: ./
-        with:
-          image: tonistiigi/binfmt:master
-          cache-image: ${{ matrix.cache }}
-      -
-        name: Available platforms
-        run: echo ${{ steps.qemu.outputs.platforms }}

README.md

@@ -41,11 +41,10 @@ jobs:
 
 The following inputs can be used as `step.with` keys:
 
-| Name          | Type   | Default                                                                       | Description                                        |
+| Name        | Type   | Default                                                                       | Description                                      |
-|---------------|--------|-------------------------------------------------------------------------------|----------------------------------------------------|
+|-------------|--------|-------------------------------------------------------------------------------|--------------------------------------------------|
-| `image`       | String | [`tonistiigi/binfmt:latest`](https://hub.docker.com/r/tonistiigi/binfmt/tags) | QEMU static binaries Docker image                  |
+| `image`     | String | [`tonistiigi/binfmt:latest`](https://hub.docker.com/r/tonistiigi/binfmt/tags) | QEMU static binaries Docker image                |
-| `platforms`   | String | `all`                                                                         | Platforms to install (e.g., `arm64,riscv64,arm`)   |
+| `platforms` | String | `all`                                                                         | Platforms to install (e.g., `arm64,riscv64,arm`) |
-| `cache-image` | Bool   | `true`                                                                        | Cache binfmt image to GitHub Actions cache backend |
 
 ### outputs
 

__tests__/context.test.ts

@@ -16,13 +16,10 @@ describe('getInputs', () => {
   test.each([
     [
       0,
-      new Map<string, string>([
+      new Map<string, string>([]),
-        ['cache-image', 'true'],
-      ]),
       {
         image: 'docker.io/tonistiigi/binfmt:latest',
         platforms: 'all',
-        cacheImage: true,
       } as context.Inputs
     ],
     [
@@ -30,24 +27,20 @@ describe('getInputs', () => {
       new Map<string, string>([
         ['image', 'docker/binfmt:latest'],
         ['platforms', 'arm64,riscv64,arm'],
-        ['cache-image', 'false'],
       ]),
       {
         image: 'docker/binfmt:latest',
         platforms: 'arm64,riscv64,arm',
-        cacheImage: false,
       } as context.Inputs
     ],
     [
       2,
       new Map<string, string>([
         ['platforms', 'arm64, riscv64, arm '],
-        ['cache-image', 'true'],
       ]),
       {
         image: 'docker.io/tonistiigi/binfmt:latest',
         platforms: 'arm64,riscv64,arm',
-        cacheImage: true,
       } as context.Inputs
     ]
   ])(

action.yml

@@ -15,10 +15,6 @@ inputs:
     description: 'Platforms to install (e.g. arm64,riscv64,arm)'
     default: 'all'
     required: false
-  cache-image:
-    description: 'Cache binfmt image to GitHub Actions cache backend'
-    default: 'true'
-    required: false
 
 outputs:
   platforms:
@@ -27,4 +23,3 @@ outputs:
 runs:
   using: 'node20'
   main: 'dist/index.js'
-  post: 'dist/index.js'

src/context.ts

@@ -4,13 +4,11 @@ import {Util} from '@docker/actions-toolkit/lib/util';
 export interface Inputs {
   image: string;
   platforms: string;
-  cacheImage: boolean;
 }
 
 export function getInputs(): Inputs {
   return {
     image: core.getInput('image') || 'docker.io/tonistiigi/binfmt:latest',
-    platforms: Util.getInputList('platforms').join(',') || 'all',
+    platforms: Util.getInputList('platforms').join(',') || 'all'
-    cacheImage: core.getBooleanInput('cache-image')
   };
 }

src/main.ts

@@ -20,7 +20,13 @@ actionsToolkit.run(
     });
 
     await core.group(`Pulling binfmt Docker image`, async () => {
-      await Docker.pull(input.image, input.cacheImage);
+      await Docker.getExecOutput(['pull', input.image], {
+        ignoreReturnCode: true
+      }).then(res => {
+        if (res.stderr.length > 0 && res.exitCode != 0) {
+          throw new Error(res.stderr.match(/(.*)\s*$/)?.[0]?.trim() ?? 'unknown error');
+        }
+      });
     });
 
     await core.group(`Image info`, async () => {