Cache multiple target directories from 'target-dir'

src/save.ts

@@ -23,7 +23,8 @@ async function run() {
   }
 
   try {
-    const { paths: savePaths, key } = await getCacheConfig();
+    const { paths, workspaces, key } = await getCacheConfig();
+    const savePaths = paths.concat(workspaces);
 
     if (core.getState(stateKey) === key) {
       core.info(`Cache up-to-date.`);
@@ -34,7 +35,8 @@ async function run() {
     await macOsWorkaround();
 
     const registryName = await getRegistryName();
-    const packages = await getPackages();
+    const packages = await getPackages(workspaces);
+    core.info("Detected repository packages to cache: " + JSON.stringify(packages));
 
     if (registryName) {
       try {
@@ -56,10 +58,14 @@ async function run() {
       core.info(`[warning] ${(e as any).stack}`);
     }
 
-    try {
-      await cleanTarget(packages);
-    } catch (e) {
-      core.info(`[warning] ${(e as any).stack}`);
+    for (const workspace of workspaces) {
+      const target = path.join(workspace, "target");
+      try {
+        await cleanTarget(target, packages);
+      }
+      catch (e) {
+        core.info(`[warning] ${(e as any).stack}`);
+      }
     }
 
     core.info(`Saving paths:\n    ${savePaths.join("\n    ")}`);
@@ -170,5 +176,5 @@ async function macOsWorkaround() {
     // Workaround for https://github.com/actions/cache/issues/403
     // Also see https://github.com/rust-lang/cargo/issues/8603
     await exec.exec("sudo", ["/usr/sbin/purge"], { silent: true });
-  } catch {}
+  } catch { }
 }