Merge pull request #1495 from xonsh/alias_completion

re-enable tab completion for aliases

news/aliascomp.rst

@@ -0,0 +1,13 @@
+**Added:** None
+
+**Changed:** None
+
+**Deprecated:** None
+
+**Removed:** None
+
+**Fixed:** 
+
+* Alias tab completion works again
+
+**Security:** None

xonsh/jupyter_kernel.py

@@ -102,6 +102,7 @@ class XonshKernel(Kernel):
         """Get completions."""
         shell = builtins.__xonsh_shell__
         line = code.split('\n')[-1]
+        line = builtins.aliases.expand_alias(line)
         prefix = line.split(' ')[-1]
         endidx = pos
         begidx = pos - len(prefix)

xonsh/ptk/completer.py

@@ -30,6 +30,7 @@ class PromptToolkitCompleter(Completer):
                 endidx = document.cursor_position_col
                 begidx = line[:endidx].rfind(' ') + 1 if line[:endidx].rfind(' ') >= 0 else 0
                 prefix = line[begidx:endidx]
+                line = builtins.aliases.expand_alias(line)
                 completions, l = self.completer.complete(prefix,
                                                          line,
                                                          begidx,

xonsh/readline_shell.py

@@ -255,6 +255,7 @@ class ReadlineShell(BaseShell, cmd.Cmd):
         rl_completion_suppress_append()  # this needs to be called each time
         _rebind_case_sensitive_completions()
 
+        line = builtins.aliases.expand_alias(line)
         mline = line.partition(' ')[2]
         offs = len(mline) - len(text)
         if self.completer is None: