Initial version of action

lib/main.js

@@ -0,0 +1,92 @@
+"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 fs = __importStar(require("fs"));
+const core = __importStar(require("@actions/core"));
+const github = __importStar(require("@actions/github"));
+function get_release_by_tag(tag, octokit, context) {
+    return __awaiter(this, void 0, void 0, function* () {
+        try {
+            core.debug(`Getting release by tag ${tag}.`);
+            return yield octokit.repos.getReleaseByTag(Object.assign({}, context.repo, { tag: tag }));
+        }
+        catch (error) {
+            // If this returns 404, we need to create the release first.
+            if (error.status === 404) {
+                core.debug(`Release for tag ${tag} doesn't exist yet so we'll create it now.`);
+                return yield octokit.repos.createRelease(Object.assign({}, context.repo, { tag_name: tag }));
+            }
+            else {
+                throw error;
+            }
+        }
+    });
+}
+function upload_to_release(release, file, asset_name, tag, overwrite, octokit, context) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const file_size = fs.statSync(file).size;
+        const file_bytes = fs.readFileSync(file);
+        // Check for duplicates.
+        const assets = yield octokit.repos.listAssetsForRelease(Object.assign({}, context.repo, { release_id: release.data.id }));
+        const duplicate_asset = assets.data.find(a => a.name === asset_name);
+        if (duplicate_asset !== undefined) {
+            if (overwrite === "true") {
+                core.debug(`An asset called ${asset_name} already exists in release ${tag} so we'll overwrite it.`);
+                yield octokit.repos.deleteReleaseAsset(Object.assign({}, context.repo, { asset_id: duplicate_asset.id }));
+            }
+            else {
+                core.setFailed(`An asset called ${asset_name} already exists.`);
+                return;
+            }
+        }
+        else {
+            core.debug(`No pre-existing asset called ${asset_name} found in release ${tag}. All good.`);
+        }
+        core.debug(`Uploading ${file} to ${asset_name} in release ${tag}.`);
+        yield octokit.repos.uploadReleaseAsset({
+            url: release.data.upload_url,
+            name: asset_name,
+            file: file_bytes,
+            headers: {
+                "content-type": "binary/octet-stream",
+                "content-length": file_size
+            },
+        });
+    });
+}
+function run() {
+    return __awaiter(this, void 0, void 0, function* () {
+        try {
+            const token = core.getInput('repo_token', { required: true });
+            const file = core.getInput('file', { required: true });
+            const asset_name = core.getInput('asset_name', { required: true });
+            const tag = core.getInput('tag', { required: true });
+            const overwrite = core.getInput('overwrite');
+            if (!fs.existsSync(file)) {
+                core.setFailed(`File ${file} wasn't found.`);
+            }
+            const octokit = new github.GitHub(token);
+            const context = github.context;
+            const release = yield get_release_by_tag(tag, octokit, context);
+            yield upload_to_release(release, file, asset_name, tag, overwrite, octokit, context);
+        }
+        catch (error) {
+            core.setFailed(error.message);
+        }
+    });
+}
+run();