Add setup-qemu action (#71)

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

setup-qemu/src/main.ts

@@ -0,0 +1,31 @@
+import * as os from 'os';
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+async function run(): Promise<void> {
+  try {
+    if (os.platform() !== 'linux') {
+      core.setFailed('Only supported on linux platform');
+      return;
+    }
+
+    const qemuVer: string = core.getInput('qemu-version') || 'latest';
+
+    core.info(`💎 Installing QEMU static binaries...`);
+    await exec.exec('docker', [
+      'run',
+      '--rm',
+      '--privileged',
+      `multiarch/qemu-user-static:${qemuVer}`,
+      '--reset',
+      '-p',
+      'yes',
+      '--credential',
+      'yes'
+    ]);
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+run();