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xonsh/completers/bash.py

@@ -7,9 +7,12 @@ import pathlib
 import builtins
 import subprocess
 
-from xonsh.platform import ON_WINDOWS
+import xonsh.lazyasd as xl
+import xonsh.platform as xp
 
-RE_DASHF = re.compile(r'-F\s+(\w+)')
+
+RE_DASHF = xl.LazyObject(lambda: re.compile(r'-F\s+(\w+)'),
+                         globals(), 'RE_DASHF')
 
 INITED = False
 
@@ -32,13 +35,6 @@ for ((i=0;i<${{#COMPREPLY[*]}};i++)) do echo ${{COMPREPLY[i]}}; done
 """
 
 
-if ON_WINDOWS:
-    from xonsh.platform import windows_bash_command
-    BASH_COMMAND = windows_bash_command()
-else:
-    BASH_COMMAND = 'bash'
-
-
 def update_bash_completion():
     global BASH_COMPLETE_FUNCS, BASH_COMPLETE_FILES, BASH_COMPLETE_HASH
     global CACHED_FUNCS, CACHED_FILES, CACHED_HASH, INITED
@@ -113,7 +109,7 @@ def complete_from_bash(prefix, line, begidx, endidx, ctx):
         end=endidx + 1, prefix=prefix, prev=shlex.quote(prev))
     try:
         out = subprocess.check_output(
-            [BASH_COMMAND], input=script, universal_newlines=True,
+            [xp.bash_command()], input=script, universal_newlines=True,
             stderr=subprocess.PIPE, env=builtins.__xonsh_env__.detype())
     except (subprocess.CalledProcessError, FileNotFoundError):
         out = ''
@@ -168,8 +164,9 @@ def _load_bash_complete_files():
 def _source_completions(source):
     try:
         return subprocess.check_output(
-            [BASH_COMMAND], input='\n'.join(source), universal_newlines=True,
-            env=builtins.__xonsh_env__.detype(), stderr=subprocess.DEVNULL)
+            [xp.bash_command()], input='\n'.join(source),
+            universal_newlines=True, env=builtins.__xonsh_env__.detype(),
+            stderr=subprocess.DEVNULL)
     except FileNotFoundError:
         return ''
 

xonsh/completers/commands.py

@@ -1,8 +1,9 @@
 import os
 import builtins
 
-from xonsh.tools import executables_in
-from xonsh.platform import ON_WINDOWS
+import xonsh.tools as xt
+import xonsh.platform as xp
+
 from xonsh.completers.tools import get_filter_function
 
 SKIP_TOKENS = {'sudo', 'time', 'timeit', 'which', 'showcmd', 'man'}
@@ -16,14 +17,13 @@ def complete_command(cmd, line, start, end, ctx):
     out = {s + space
            for s in builtins.__xonsh_commands_cache__
            if get_filter_function()(s, cmd)}
-    if ON_WINDOWS:
-        out |= {i
-                for i in executables_in('.')
+    if xp.ON_WINDOWS:
+        out |= {i for i in xt.executables_in('.')
                 if i.startswith(cmd)}
     base = os.path.basename(cmd)
     if os.path.isdir(base):
         out |= {os.path.join(base, i)
-                for i in executables_in(base)
+                for i in xt.executables_in(base)
                 if i.startswith(cmd)}
     return out
 
@@ -51,6 +51,5 @@ def complete_skipper(cmd, line, start, end, ctx):
                          start - len(first) - 1,
                          end - len(first) - 1,
                          ctx)
-
     else:
         return set()

xonsh/platform.py

@@ -227,7 +227,7 @@ def git_for_windows_path():
 
 @functools.lru_cache(1)
 def windows_bash_command():
-    """Determines teh command for Bash on windows."""
+    """Determines the command for Bash on windows."""
     # Check that bash is on path otherwise try the default directory
     # used by Git for windows
     wbc = 'bash'
@@ -247,6 +247,15 @@ def windows_bash_command():
 # Environment variables defaults
 #
 
+@functools.lru_cache(1)
+def bash_command():
+    """Determines the command for Bash on the current plaform."""
+    if ON_WINDOWS:
+        bc = windows_bash_command()
+    else:
+        bc = 'bash'
+    return bc
+
 
 @lazyobject
 def BASH_COMPLETIONS_DEFAULT():