Uninstall current emulators

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: ci
 
 on:
   schedule:
-    - cron: '0 10 * * *' # everyday at 10am
+    - cron: '0 10 * * *'
   push:
     branches:
       - 'master'
@@ -40,9 +40,6 @@ jobs:
       -
         name: Available platforms
         run: echo ${{ steps.qemu.outputs.platforms }}
-      -
-        name: Dump context
-        uses: crazy-max/ghaction-dump-context@v1
 
   error:
     runs-on: ubuntu-latest
@@ -67,7 +64,23 @@ jobs:
             echo "::error::Should have failed"
             exit 1
           fi
+
+  reset:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Install multiarch/qemu-user-static
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes -c yes
+      -
+        name: Set up QEMU
+        id: qemu
+        uses: ./
+        with:
+          reset: true
       -
-        name: Dump context
-        if: always()
-        uses: crazy-max/ghaction-dump-context@v1
+        name: Available platforms
+        run: echo ${{ steps.qemu.outputs.platforms }}

README.md

@@ -39,18 +39,19 @@ jobs:
 
 Following inputs can be used as `step.with` keys
 
-| Name        | Type   | Description                                                                                                               |
-|-------------|--------|---------------------------------------------------------------------------------------------------------------------------|
-| `image`     | String | QEMU static binaries Docker image (default [`tonistiigi/binfmt:latest`](https://hub.docker.com/r/tonistiigi/binfmt/tags)) |
-| `platforms` | String | Platforms to install (e.g. `arm64,riscv64,arm` ; default `all`)                                                           |
+| Name        | Type   | Default                                                                       | Description                                     |
+|-------------|--------|-------------------------------------------------------------------------------|-------------------------------------------------|
+| `image`     | String | [`tonistiigi/binfmt:latest`](https://hub.docker.com/r/tonistiigi/binfmt/tags) | QEMU static binaries Docker image               |
+| `platforms` | String | `all`                                                                         | Platforms to install                            |
+| `reset`     | Bool   | `false`                                                                       | Uninstall current emulators before installation |
 
 ### outputs
 
 Following outputs are available
 
-| Name          | Type    | Description                           |
-|---------------|---------|---------------------------------------|
-| `platforms`   | String  | Available platforms (comma separated) |
+| Name        | Type    | Description                           |
+|-------------|---------|---------------------------------------|
+| `platforms` | String  | Available platforms (comma separated) |
 
 ## Contributing
 

action.yml

@@ -15,6 +15,10 @@ inputs:
     description: 'Platforms to install (e.g. arm64,riscv64,arm)'
     default: 'all'
     required: false
+  reset:
+    description: 'Uninstall current emulators before installation'
+    default: 'false'
+    required: false
 
 outputs:
   platforms:

src/context.ts

@@ -3,11 +3,13 @@ import * as core from '@actions/core';
 export interface Inputs {
   image: string;
   platforms: string;
+  reset: boolean;
 }
 
 export function getInputs(): Inputs {
   return {
     image: core.getInput('image') || 'tonistiigi/binfmt:latest',
-    platforms: core.getInput('platforms') || 'all'
+    platforms: core.getInput('platforms') || 'all',
+    reset: core.getBooleanInput('reset')
   };
 }

src/main.ts

@@ -24,6 +24,12 @@ async function run(): Promise<void> {
       await exec.exec('docker', ['pull', input.image]);
     });
 
+    if (input.reset) {
+      await core.group(`Uninstalling current emulators`, async () => {
+        await exec.exec('docker', ['run', '--rm', '--privileged', input.image, '--uninstall', 'qemu-*']);
+      });
+    }
+
     await core.group(`Image info`, async () => {
       await exec.exec('docker', ['image', 'inspect', input.image]);
     });