Fix auth api report being altered

Author: hsubox76

.github/workflows/check-docs.yml

@@ -21,10 +21,8 @@ jobs:
       run: yarn
     - name: Run doc generation (devsite docs)
       run: yarn docgen devsite
-    - name: Check for changes (fail if so)
-      run: |
-        cd docs-devsite
-        git diff --exit-code
+    - name: Check for changes in docs-devsite dir (fail if so)
+      run: git diff --exit-code docs-devsite
     - name: Reference documentation needs to be updated. See message below.
       if: ${{ failure() }}
       run: echo "Changes in this PR affect the reference docs. Run \`yarn docgen devsite\` locally to regenerate docs and add them to this PR."

scripts/docgen/docgen.ts

@@ -136,6 +136,11 @@ async function generateDocs(
     `${projectRoot}/packages/auth/api-extractor.json`,
     'utf8'
   );
+  // Save original auth.md as well.
+  const authApiReportOriginal = fs.readFileSync(
+    `${projectRoot}/common/api-review/auth.api.md`,
+    'utf8'
+  );
   const authApiConfigModified = authApiConfigOriginal.replace(
     `"mainEntryPointFilePath": "<projectFolder>/dist/esm5/index.d.ts"`,
     `"mainEntryPointFilePath": "<projectFolder>/dist/esm5/index.doc.d.ts"`
@@ -173,6 +178,11 @@ async function generateDocs(
     `${projectRoot}/packages/auth/api-extractor.json`,
     authApiConfigOriginal
   );
+  // Restore original auth.api.md
+  fs.writeFileSync(
+    `${projectRoot}/common/api-review/auth.api.md`,
+    authApiReportOriginal
+  );
 
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir);