test/api: Add git functionalities

- get all files that belong to git repo
- get paths of all submodules

Signed-off-by: Rafal Stefanowski <rafal.stefanowski@intel.com>

test/functional/api/cas/git.py

@@ -10,6 +10,54 @@ from connection.local_executor import LocalExecutor
 from test_utils.output import CmdException
 
 
+def get_submodules_paths(from_dut: bool = False):
+    executor = TestRun.executor if from_dut else LocalExecutor()
+    repo_path = TestRun.usr.working_dir if from_dut else TestRun.usr.repo_dir
+    git_params = "config --file .gitmodules --get-regexp path | cut -d' ' -f2"
+
+    output = executor.run(f"git -C {repo_path} {git_params}")
+    if output.exit_code != 0:
+        raise CmdException("Failed to get submodules paths", output)
+
+    return output.stdout.splitlines()
+
+
+def get_repo_files(
+    branch: str = "HEAD",
+    with_submodules: bool = True,
+    with_dirs: bool = False,
+    from_dut: bool = False,
+):
+    executor = TestRun.executor if from_dut else LocalExecutor()
+    repo_path = TestRun.usr.working_dir if from_dut else TestRun.usr.repo_dir
+    git_params = f"ls-tree -r --name-only --full-tree {branch}"
+
+    output = executor.run(f"git -C {repo_path} {git_params}")
+    if output.exit_code != 0:
+        raise CmdException("Failed to get repo files list", output)
+
+    files = output.stdout.splitlines()
+
+    if with_submodules:
+        for subm_path in get_submodules_paths(from_dut):
+            output = executor.run(f"git -C {os.path.join(repo_path, subm_path)} {git_params}")
+            if output.exit_code != 0:
+                raise CmdException(f"Failed to get {subm_path} submodule repo files list", output)
+
+            subm_files = [os.path.join(subm_path, file) for file in output.stdout.splitlines()]
+            files.extend(subm_files)
+
+    if with_dirs:
+        # use set() to get unique values only
+        dirs = set(os.path.dirname(file) for file in files)
+        files.extend(dirs)
+
+    # change to absolute paths and remove empty values
+    files = [os.path.realpath(os.path.join(repo_path, file)) for file in files if file]
+
+    return files
+
+
 def get_current_commit_hash(from_dut: bool = False):
     executor = TestRun.executor if from_dut else LocalExecutor()
     repo_path = TestRun.usr.working_dir if from_dut else TestRun.usr.repo_dir