Fix: Add support for handling multiple schemas from a comma-separated…

… list in schema-loader-utils

- Updated `readSchemas` in `schema-loader-utils.ts` to correctly parse and handle multiple schema files passed as a comma-separated list.
- Added a test case to validate functionality for multiple schemas in `schema-loader-utils.test.ts`.

Addresses issue #2087.
[Bug] Fix issue #2087: Handle multiple schema files in gen-schema-views script

firestore-bigquery-export/scripts/gen-schema-view/src/__tests__/schema-loader-utils/schema-loader-utils.test.ts

@@ -76,4 +76,19 @@ describe("filesystem schema loading", () => {
     const schemas = schema_loader_utils.readSchemas([globPattern]);
     expect(Object.keys(schemas)).to.have.members(results);
   });
+  it("should load schemas from a comma-separated list of file paths", () => {
+    const schemaFiles = `${schemaDir}/full-directory/schema-1.json,${schemaDir}/full-directory/schema-2.json`;
+    const schemas = Object.keys(schema_loader_utils.readSchemas([schemaFiles]));
+    expect(schemas.length).to.equal(2);
+    expect(schemas).to.include(
+      schema_loader_utils.filePathToSchemaName(
+        `${schemaDir}/full-directory/schema-1.json`
+      )
+    );
+    expect(schemas).to.include(
+      schema_loader_utils.filePathToSchemaName(
+        `${schemaDir}/full-directory/schema-2.json`
+      )
+    );
+  });
 });

firestore-bigquery-export/scripts/gen-schema-view/src/index.ts

@@ -174,6 +174,7 @@ async function parseConfig(): Promise<CliConfig> {
       program.outputHelp();
       process.exit(1);
     }
+
     return {
       projectId: program.project,
       bigQueryProjectId: program.bigQueryProject,

firestore-bigquery-export/scripts/gen-schema-view/src/schema-loader-utils.ts

@@ -63,8 +63,10 @@ function resolveFilePath(filePath: string): string {
 
 function expandGlobs(globs: string[]): string[] {
   let results = [];
-  for (var i = 0; i < globs.length; i++) {
-    const globResults = glob.sync(globs[i]);
+  // Split any comma-separated globs into individual paths
+  const expandedGlobs = globs.flatMap((g) => g.split(",").map((s) => s.trim()));
+  for (const globPath of expandedGlobs) {
+    const globResults = glob.sync(globPath);
     results = results.concat(globResults);
   }
   return results;