Setup paths before init

Author: fwal

src/swiftly/swiftly.ts

@@ -1,15 +1,35 @@
-import { addPath, debug, info } from "@actions/core";
+import { addPath, debug, exportVariable, info } from "@actions/core";
 import { cmd } from "../core";
+import { mkdtempSync } from "fs";
+import path from "path";
+
 
 async function swiftly(...args: string[]) {
   return await cmd("swiftly", ...args);
 }
 
+function setupPaths() {
+  const tmpPath = mkdtempSync(`swiftly`);
+
+  const homeDir = process.env.SWIFTLY_HOME_DIR || path.join(tmpPath, "home") ;
+  const binDir = process.env.SWIFTLY_BIN_DIR || path.join(tmpPath, "bin");
+
+  exportVariable('SWIFTLY_HOME_DIR', homeDir);
+  exportVariable('SWIFTLY_BIN_DIR', binDir);
+
+  addPath(binDir);
+
+  debug(`Using Swiftly home dir: ${homeDir}`);
+  debug(`Using Swiftly bin dir: ${binDir}`);
+}
+
 /**
  * Install Swift using Swiftly
  * @param version Version to install
  */
 export async function installSwift(version: string) {
+  setupPaths();
+
   info("Initializing Swiftly");
   await swiftly(
     "init",