1 files changed, 48 insertions, 0 deletions
diff --git a/tools/release/helpers/cargo.ts b/tools/release/helpers/cargo.ts
new file mode 100644
index 000000000..619d7a0f7
--- /dev/null
+++ b/tools/release/helpers/cargo.ts
@@ -0,0 +1,48 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+import { runCommand } from "./helpers.ts";
+
+export interface CargoMetadata {
+  packages: CargoPackageMetadata[];
+  /** Identifiers in the `packages` array of the workspace members. */
+  "workspace_members": string[];
+  /** The absolute workspace root directory path. */
+  "workspace_root": string;
+}
+
+export interface CargoPackageMetadata {
+  id: string;
+  name: string;
+  version: string;
+  dependencies: CargoDependencyMetadata[];
+  /** Path to Cargo.toml */
+  "manifest_path": string;
+}
+
+export interface CargoDependencyMetadata {
+  name: string;
+  /** Version requrement (ex. ^0.1.0) */
+  req: string;
+}
+
+export async function getMetadata(directory: string) {
+  const result = await runCommand({
+    cwd: directory,
+    cmd: ["cargo", "metadata", "--format-version", "1"],
+  });
+  return JSON.parse(result!) as CargoMetadata;
+}
+
+export async function publishCrate(directory: string) {
+  const p = Deno.run({
+    cwd: directory,
+    cmd: ["cargo", "publish"],
+    stderr: "inherit",
+    stdout: "inherit",
+  });
+
+  const status = await p.status();
+  if (!status.success) {
+    throw new Error("Failed");
+  }
+}