Initial commit

src/main.ts

@@ -0,0 +1,47 @@
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+import * as io from '@actions/io';
+
+import * as input from './input';
+
+async function getCross(): Promise<string> {
+    try {
+        return await io.which('cross', true);
+    } catch (error) {
+        core.warning('Unable to find cross, installing it now');
+    }
+
+    try {
+        await exec.exec('cargo', ['install', 'cross']);
+    } catch (error) {
+        core.setFailed(error.message);
+    }
+
+    return 'cross';
+}
+
+async function run() {
+    const actionInput = input.parse();
+
+    let program;
+    if (actionInput.useCross) {
+        program = await getCross();
+    } else {
+        program = 'cargo';
+    }
+
+    let args: string[] = [];
+    if (actionInput.toolchain) {
+        args.push(`+${actionInput.toolchain}`);
+    }
+
+    args = args.concat(actionInput.args);
+
+    try {
+        await exec.exec(program, args);
+    } catch (error) {
+        core.setFailed(error.message);
+    }
+}
+
+run();