remote: Added fetch, pull, push methods to the interface to make these operations more convenient, like repo.remotes.origin.fetch

Author: Byron

CHANGES

@@ -50,6 +50,12 @@ Blob
 ----
 * former 'name' member renamed to path as it suits the actual data better
 
+GitCommand
+-----------
+* git.subcommand call scheme now prunes out None from the argument list, allowing 
+  to be called more confortably as None can never be a valid to the git command 
+  if converted to a string.
+
 Commit
 ------
 * 'count' method is not an instance method to increase its ease of use

TODO

@@ -41,6 +41,11 @@ Index
 * Index Merge ( merge two trees into the index to quickly see conflicts ). 
   Its possible to write it into a separate index file that can be read separately.
 
+Remote
+------
+* 'push' method needs a test, a true test repository is required though, a fork 
+  of a fork would do :)!
+  
 Repo
 ----
 * Nice fetch/pull handling, at least supported/wired throuhg to the git command
@@ -66,5 +71,6 @@ Testing
   read-only testing scheme that operates on the own repository. Doing this could be a simple
   as forking a shared repo in a tmp directory. In that moment, we probably want to 
   facility committing and checkouts as well.
+  - Use these tests for git-remote as we need to test push
 
 

lib/git/cmd.py

@@ -261,7 +261,9 @@ def _call_process(self, method, *args, **kwargs):
 			such as in 'ls_files' to call 'ls-files'.
 
 		``args``
-			is the list of arguments
+			is the list of arguments. If None is included, it will be pruned.
+			This allows your commands to call git more conveniently as None
+			is realized as non-existent
 
 		``kwargs``
 			is a dict of keyword arguments.
@@ -287,7 +289,7 @@ def _call_process(self, method, *args, **kwargs):
 		# Prepare the argument list
 		opt_args = self.transform_kwargs(**kwargs)
 
-		ext_args = self.__unpack_args(args)
+		ext_args = self.__unpack_args([a for a in args if a is not None])
 		args = opt_args + ext_args
 
 		call = ["git", dashify(method)]

lib/git/remote.py

@@ -185,7 +185,9 @@ def rename(self, new_name):
 
 	def update(self, **kwargs):
 		"""
-		Fetch all changes for this remote, including new branches
+		Fetch all changes for this remote, including new branches which will 
+		be forced in ( in case your local remote branch is not part the new remote branches
+		ancestry anymore ).
 		
 		``kwargs``
 			Additional arguments passed to git-remote update
@@ -196,6 +198,64 @@ def update(self, **kwargs):
 		self.repo.git.remote("update", self.name)
 		return self
 
+	def fetch(self, refspec=None, **kwargs):
+		"""
+		Fetch the latest changes for this remote
+		
+		``refspec``
+			A "refspec" is used by fetch and push to describe the mapping 
+			between remote ref and local ref. They are combined with a colon in 
+			the format <src>:<dst>, preceded by an optional plus sign, +. 
+			For example: git fetch $URL refs/heads/master:refs/heads/origin means 
+			"grab the master branch head from the $URL and store it as my origin 
+			branch head". And git push $URL refs/heads/master:refs/heads/to-upstream 
+			means "publish my master branch head as to-upstream branch at $URL". 
+			See also git-push(1).
+			
+			Taken from the git manual
+		
+		``**kwargs``
+			Additional arguments to be passed to git-fetch
+			
+		Returns
+			self
+		"""
+		self.repo.git.fetch(self, refspec, **kwargs)
+		return self
+		
+	def pull(self, refspec=None, **kwargs):
+		"""
+		Pull changes from the given branch, being the same as a fetch followed 
+		by a merge of branch with your local branch.
+		
+		``refspec``
+			see 'fetch' method
+		
+		``**kwargs``
+			Additional arguments to be passed to git-pull
+			
+		Returns
+			self
+		"""
+		self.repo.git.pull(self, refspec, **kwargs)
+		return self
+		
+	def push(self, refspec=None, **kwargs):
+		"""
+		Push changes from source branch in refspec to target branch in refspec.
+		
+		``refspec``
+			see 'fetch' method
+		
+		``**kwargs``
+			Additional arguments to be passed to git-push
+			
+		Returns
+			self
+		"""	
+		self.repo.git.push(self, refspec, **kwargs)
+		return self
+		
 	@property
 	def config_reader(self):
 		"""

test/git/test_remote.py

@@ -32,7 +32,8 @@ def test_base(self):
 			# END for each ref
 
 			# OPTIONS
-			for opt in ("url", "fetch"):
+			# cannot use 'fetch' key anymore as it is now a method
+			for opt in ("url", ):
 				val = getattr(remote, opt)
 				reader = remote.config_reader
 				assert reader.get(opt) == val
@@ -61,8 +62,10 @@ def test_base(self):
 				assert remote.rename(prev_name).name == prev_name
 			# END for each rename ( back to prev_name )
 
+			remote.fetch()
+			self.failUnlessRaises(GitCommandError, remote.pull)
 			remote.update()
-			
+			self.fail("test push once there is a test-repo")
 		# END for each remote
 		assert num_remotes
 		assert num_remotes == len(remote_set)