git fetch + tests

Signed-off-by: Václav Valíček <valicek1994@gmail.com>

repo_cloner/lib/repo_tool.py

@@ -95,6 +95,7 @@ class RepoTool:
 	_initialized: bool = False
 	_bare: bool = False
 	_path: str = ""
+	_last_fetch_data = []
 
 	def __init__(self, path: str):
 		log.info(f"Initializing repository at {path}")
@@ -121,6 +122,16 @@ class RepoTool:
 	def path(self) -> str:
 		return self._path
 
+	def __check_initialized(self):
+		def inner(*args):
+			fake_self: RepoTool = args[0]
+			if not fake_self._initialized:
+				log.critical(f"Repo {fake_self.path} is not initialized!")
+				return False
+			return self(*args)
+
+		return inner
+
 	def clone(self, url: str) -> bool:
 		if self._initialized:
 			log.warning(f"Trying to clone to initialized repository!")
@@ -132,3 +143,21 @@ class RepoTool:
 		self._bare = self._repo.bare
 
 		return True
+
+	@__check_initialized
+	def fetch(self) -> bool:
+		log.info("Fetching repo state")
+		if not len(self._repo.remotes):
+			log.warning(f"Repo: {self._path} does not contain any remotes!")
+			return False
+		# fetch all remotes
+		remote = self._repo.remotes[0]
+		log.debug(f"Fetching remote: {remote.name} url: {next(remote.urls)}")
+		self._last_fetch_data = remote.fetch(
+			"+refs/heads/*:refs/heads/*",
+			progress = GitRemoteProgress(),
+			kill_after_timeout = 60,
+			prune = True
+		)
+		log.debug("Fetch finished!")
+		return True