Cache artifacts directory by default

lib/caching.js

@@ -0,0 +1,39 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const cache = __importStar(require("@actions/cache"));
+const glob = __importStar(require("@actions/glob"));
+const path = __importStar(require("path"));
+// TODO: Change to hashFiles once https://github.com/actions/toolkit/issues/472 has been resolved
+const md5File = __importStar(require("md5-file"));
+const JULIA_HOME = path.join(`${process.env.HOME}`, '.julia');
+/**
+ * Cache the ~/.julia/artifacts directory.
+ */
+function cacheArtifacts() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const projectFiles = yield (yield glob.create('**/Project.toml')).glob();
+        let projectsHash = '';
+        projectFiles.forEach((f) => {
+            projectsHash.concat('-', md5File.sync(f));
+        });
+        const paths = [path.join(JULIA_HOME, 'artifacts')];
+        const key = `artifacts-${process.env.RUNNER_OS}-${projectsHash}`;
+        return cache.saveCache(paths, key);
+    });
+}
+exports.cacheArtifacts = cacheArtifacts;

lib/setup-julia.js

@@ -20,6 +20,7 @@ const exec = __importStar(require("@actions/exec"));
 const tc = __importStar(require("@actions/tool-cache"));
 const path = __importStar(require("path"));
 const installer = __importStar(require("./installer"));
+const jlcache = __importStar(require("./caching"));
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
@@ -49,6 +50,12 @@ function run() {
             if (core.getInput('show-versioninfo') == 'true') {
                 exec.exec('julia', ['-e', 'using InteractiveUtils; versioninfo()']);
             }
+            // Create caches
+            if (core.getInput('cache-artifacts') == 'true') {
+                core.debug('caching artifacts directory...');
+                const cacheId = yield jlcache.cacheArtifacts();
+                core.setOutput('artifacts-cache-id', cacheId.toString());
+            }
         }
         catch (error) {
             core.setFailed(error.message);