Import project from database (#10326)

* Initial changes for Import database as new project

* Functionally complete code

* Initial changes for Import database as new project

* Functionally complete code

* Resolved conflicts with latest changes. Also did some code refactoring.

* Addressed comments. Added unit tests.

* Addressed comments

* Moved ExtractTarget enum from azdata to mssql

* Addressed comments

* Fixed indentation in project templates

extensions/sql-database-projects/src/test/testUtils.ts

@@ -55,3 +55,65 @@ async function createTestFile(contents: string, fileName: string, folderPath?: s
 
 	return filePath;
 }
+/**
+ * TestFolder directory structure
+ * 		- file1.sql
+ * 		- folder1
+ * 			-file1.sql
+ * 			-file2.sql
+ * 			-file3.sql
+ * 			-file4.sql
+ * 			-file5.sql
+ *	 	- folder2
+ * 			-file1.sql
+ * 			-file2.sql
+ * 			-file3.sql
+ * 			-file4.sql
+ * 			-file5.sql
+ * 		- file2.txt
+ *
+ * @param createList Boolean specifying to create a list of the files and folders been created
+ * @param list List of files and folders that are been created
+ */
+export async function createDummyFileStructure(createList?: boolean, list?: string[], testFolderPath?: string): Promise<string> {
+	testFolderPath = testFolderPath ?? await generateTestFolderPath();
+
+	let filePath = path.join(testFolderPath, 'file1.sql');
+	await fs.open(filePath, 'w');
+	if (createList) {
+		list?.push(testFolderPath);
+		list?.push(filePath);
+	}
+
+	for (let dirCount = 1; dirCount <= 2; dirCount++) {
+		let dirName = path.join(testFolderPath, `folder${dirCount}`);
+		await fs.mkdir(dirName, { recursive: true });
+		if (createList) {
+			list?.push(dirName);
+		}
+
+		for (let fileCount = 1; fileCount <= 5; fileCount++) {
+			let fileName = path.join(dirName, `file${fileCount}.sql`);
+			await fs.open(fileName, 'w');
+			if (createList) {
+				list?.push(fileName);
+			}
+		}
+	}
+
+	filePath = path.join(testFolderPath, 'file2.txt');
+	await fs.open(filePath, 'w');
+	if (createList) {
+		list?.push(filePath);
+	}
+
+	return testFolderPath;
+}
+
+export async function createListOfFiles(filePath?: string): Promise<string[]> {
+	let fileFolderList: string[] = [];
+
+	await createDummyFileStructure(true, fileFolderList, filePath);
+
+	return fileFolderList;
+}