Merge remote-tracking branch 'kovidgoyal/fix-482' into develop

Conflicts:
	powerline/lib/vcs/git.py

powerline/lib/file_watcher.py

@@ -92,6 +92,10 @@ class INotifyWatch(INotify):
 				self.watches[path] = wd
 				self.modified[path] = False
 
+	def is_watched(self, path):
+		with self.lock:
+			return realpath(path) in self.watches
+
 	def __call__(self, path):
 		''' Return True if path has been modified since the last call. Can
 		raise OSError if the path does not exist. '''
@@ -141,6 +145,10 @@ class StatWatch(object):
 		with self.lock:
 			self.watches.pop(path, None)
 
+	def is_watched(self, path):
+		with self.lock:
+			return realpath(path) in self.watches
+
 	def __call__(self, path):
 		path = realpath(path)
 		with self.lock:

powerline/lib/tree_watcher.py

@@ -31,11 +31,12 @@ class INotifyTreeWatcher(INotify):
 
 	is_dummy = False
 
-	def __init__(self, basedir):
+	def __init__(self, basedir, ignore_event=None):
 		super(INotifyTreeWatcher, self).__init__()
 		self.basedir = realpath(basedir)
 		self.watch_tree()
 		self.modified = True
+		self.ignore_event = (lambda path, name: False) if ignore_event is None else ignore_event
 
 	def watch_tree(self):
 		self.watched_dirs = {}
@@ -93,7 +94,7 @@ class INotifyTreeWatcher(INotify):
 
 				self.MODIFY | self.CREATE | self.DELETE |
 				self.MOVE_SELF | self.MOVED_FROM | self.MOVED_TO |
-				self.ATTRIB | self.MOVE_SELF | self.DELETE_SELF)
+				self.ATTRIB | self.DELETE_SELF)
 		if wd == -1:
 			eno = ctypes.get_errno()
 			if eno == errno.ENOTDIR:
@@ -112,7 +113,7 @@ class INotifyTreeWatcher(INotify):
 			return
 		path = self.watched_rmap.get(wd, None)
 		if path is not None:
-			self.modified = True
+			self.modified = not self.ignore_event(path, name)
 			if mask & self.CREATE:
 				# A new sub-directory might have been created, monitor it.
 				try:
@@ -152,10 +153,10 @@ class TreeWatcher(object):
 		self.last_query_times = {}
 		self.expire_time = expire_time * 60
 
-	def watch(self, path, logger=None):
+	def watch(self, path, logger=None, ignore_event=None):
 		path = realpath(path)
 		try:
-			w = INotifyTreeWatcher(path)
+			w = INotifyTreeWatcher(path, ignore_event=ignore_event)
 		except (INotifyError, DirTooLarge) as e:
 			if logger is not None:
 				logger.warn('Failed to watch path: {0} with error: {1}'.format(path, e))
@@ -176,14 +177,14 @@ class TreeWatcher(object):
 		for path in pop:
 			del self.last_query_times[path]
 
-	def __call__(self, path, logger=None):
+	def __call__(self, path, logger=None, ignore_event=None):
 		path = realpath(path)
 		self.expire_old_queries()
 		self.last_query_times[path] = monotonic()
 		w = self.watches.get(path, None)
 		if w is None:
 			try:
-				self.watch(path)
+				self.watch(path, logger=logger, ignore_event=ignore_event)
 			except NoSuchDir:
 				pass
 			return True

powerline/lib/vcs/__init__.py

@@ -39,8 +39,10 @@ def get_branch_name(directory, config_file, get_func):
 	global branch_name_cache
 	with branch_lock:
 		# Check if the repo directory was moved/deleted
+		fw = file_watcher()
+		is_watched = fw.is_watched(directory)
 		try:
-			changed = file_watcher()(directory)
+			changed = fw(directory)
 		except OSError as e:
 			if getattr(e, 'errno', None) != errno.ENOENT:
 				raise
@@ -48,12 +50,13 @@ def get_branch_name(directory, config_file, get_func):
 		if changed:
 			branch_name_cache.pop(config_file, None)
 			# Remove the watches for this repo
-			file_watcher().unwatch(directory)
+			if is_watched:
-			file_watcher().unwatch(config_file)
+				fw.unwatch(directory)
+				fw.unwatch(config_file)
 		else:
 			# Check if the config file has changed
 			try:
-				changed = file_watcher()(config_file)
+				changed = fw(config_file)
 			except OSError as e:
 				if getattr(e, 'errno', None) != errno.ENOENT:
 					raise
@@ -176,7 +179,7 @@ class TreeStatusCache(dict):
 	def __call__(self, repo, logger):
 		key = repo.directory
 		try:
-			if self.tw(key):
+			if self.tw(key, logger=logger, ignore_event=getattr(repo, 'ignore_event', None)):
 				self.pop(key, None)
 		except OSError as e:
 			logger.warn('Failed to check %s for changes, with error: %s'% key, e)
@@ -209,7 +212,7 @@ def debug():
 	''' To use run python -c "from powerline.lib.vcs import debug; debug()" some_file_to_watch '''
 	import sys
 	dest = sys.argv[-1]
-	repo = guess(dest)
+	repo = guess(os.path.abspath(dest))
 	if repo is None:
 		print ('%s is not a recognized vcs repo' % dest)
 		raise SystemExit(1)
@@ -224,3 +227,5 @@ def debug():
 			raw_input('Press Enter to check again: ')
 	except KeyboardInterrupt:
 		pass
+	except EOFError:
+		pass

powerline/lib/vcs/git.py

@@ -36,19 +36,29 @@ def do_status(directory, path, func):
 			with open(gitd, 'rb') as f:
 				raw = f.read().partition(b':')[2].strip()
 				gitd = os.path.abspath(os.path.join(directory, raw))
-		return get_file_status(directory, os.path.join(gitd, 'index'),
+		# We need HEAD as without it using fugitive to commit causes the
-					path, '.gitignore', func, extra_ignore_files=(os.path.join(gitd, 'info/exclude'),))
+		# current file's status (and only the current file) to not be updated
+		# for some reason I cannot be bothered to figure out.
+		return get_file_status(
+			directory, os.path.join(gitd, 'index'),
+			path, '.gitignore', func, extra_ignore_files=tuple(os.path.join(gitd, x) for x in ('logs/HEAD', 'info/exclude')))
 	return func(directory, path)
 
+def ignore_event(path, name):
+	# Ignore changes to the index.lock file, since they happen frequently and
+	# dont indicate an actual change in the working tree status
+	return False
+	return path.endswith('.git') and name == 'index.lock'
 
 try:
 	import pygit2 as git
 
 	class Repository(object):
-		__slots__ = ('directory')
+		__slots__ = ('directory', 'ignore_event')
 
 		def __init__(self, directory):
 			self.directory = os.path.abspath(directory)
+			self.ignore_event = ignore_event
 
 		def do_status(self, directory, path):
 			if path:
@@ -131,10 +141,11 @@ except ImportError:
 				yield line[:-1].decode('utf-8')
 
 	class Repository(object):
-		__slots__ = ('directory',)
+		__slots__ = ('directory', 'ignore_event')
 
 		def __init__(self, directory):
 			self.directory = os.path.abspath(directory)
+			self.ignore_event = ignore_event
 
 		def _gitcmd(self, directory, *args):
 			return readlines(('git',) + args, directory)