Move google stuff to its own folder

google/hgshort/tobashargs.py

@@ -0,0 +1,35 @@
+#! /usr/bin/python3
+"""Converts single letters like X to bash variable references like $hgshortX."""
+
+import os
+import re
+import sys
+
+# Shortands can be prefixed with an 'r', in which case several can be used in
+# one argument. This is useful for revsets, for example: 'rA::rD'.
+ALIAS_RE = re.compile(r'^([a-zA-Z])$|\br([A-Z])\b')
+
+
+def subst(match):
+  char = match.group(1) or match.group(2)
+
+  var = 'hgshort%s' % char
+  if var in os.environ:
+    return os.getenv(var, '')
+
+  return match.group(0)
+
+
+def substall(s):
+  return ALIAS_RE.sub(subst, s)
+
+
+# Don't process first argument for `hg`, since it's often a command abbreviated
+# to a single letter.
+if 'HGSHORT_IS_HG' in os.environ:
+  args = sys.argv[1:2] + list(substall(a) for a in sys.argv[2:])
+else:
+  args = list(substall(a) for a in sys.argv[1:])
+
+# sys.stderr.write('%s\n' % repr(args))  # debug only
+sys.stdout.write(chr(0).join(args))