Add ref output to action

This value is the SHA1 commit of the repository ref that was actually
checked out.

action.yml

@@ -86,6 +86,11 @@ inputs:
   long-paths:
     description: Enable core.longpath support
     default: true
+
+output:
+  ref:
+    description: The SHA1 ref that was checked out
+
 runs:
   using: node16
   main: dist/index.js

dist/index.js

@@ -32007,7 +32007,8 @@ function getSource(settings) {
             // Get commit information
             const commitInfo = yield git.log1();
             // Log commit sha
-            yield git.log1("--format='%H'");
+            const commit = yield git.log1("--format='%H'");
+            core.setOutput('ref', commit.replaceAll("'", '').trim());
             // Check for incorrect pull request merge commit
             yield refHelper.checkCommitInfo(settings.authToken, commitInfo, settings.repositoryOwner, settings.repositoryName, settings.ref, settings.commit, settings.githubServerUrl);
         }

src/git-source-provider.ts

@@ -278,7 +278,8 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
     const commitInfo = await git.log1()
 
     // Log commit sha
-    await git.log1("--format='%H'")
+    const commit = await git.log1("--format='%H'")
+    core.setOutput('ref', commit.replaceAll("'", '').trim())
 
     // Check for incorrect pull request merge commit
     await refHelper.checkCommitInfo(

tsconfig.json

@@ -3,7 +3,7 @@
     "target": "es6",
     "module": "commonjs",
     "lib": [
-      "es6"
+      "es2021"
     ],
     "outDir": "./lib",
     "rootDir": "./src",