Created vcs_newline.py

Only works with Git, for now

powerline_shell/segments/vcs_newline.py

@@ -0,0 +1,27 @@
+import subprocess
+from ..utils import RepoStats, ThreadedSegment, get_git_subprocess_env, warn
+
+
+def get_vcs_dir():
+    return_code = subprocess.Popen("git status", shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, close_fds=True)
+    return_code.communicate()[0].strip()   # Blocks until 'git status' completes execution
+    return return_code.returncode
+
+
+class Segment(ThreadedSegment):
+    def run(self):
+        self.in_vcs_dir = get_vcs_dir()
+
+    def add_to_powerline(self):
+        self.join()
+        if self.in_vcs_dir:
+            return
+        if self.powerline.args.shell == "tcsh":
+            warn("newline segment not supported for tcsh (yet?)")
+            return
+        if self.powerline.segment_conf("vcs", "newline"):
+            self.powerline.append("\n",
+                                self.powerline.theme.RESET,
+                                self.powerline.theme.RESET,
+                                separator="")
+