Add yarn-compatible package locators

Author: cometkim

README.md

@@ -309,6 +309,7 @@ After `pkg-pr-new publish` runs successfully, some outputs are available.
 
 - `sha`: The short SHA used. (E.g. `a832a55`)
 - `urls`: Space-separated URLs of published packages.
+- `packages`: Space-separated, Yarn-compatible package locators of published packages.
 
 This is useful for using published packages in other subsequent jobs immediately after publishing. (E.g. E2E tests)
 

packages/cli/index.ts

@@ -561,6 +561,11 @@ const main = defineCommand({
             `urls=${outputMetadata.packages.map((pkg) => pkg.url).join(" ")}\n`,
             "utf8",
           );
+          await fs.appendFile(
+            GITHUB_OUTPUT,
+            `packages=${outputMetadata.packages.map((pkg) => `${pkg.name}@${pkg.url}`).join(" ")}\n`,
+            "utf8",
+          );
         },
       };
     },