Add script to generate bash autocompletion setup

This commit replaces the bash autocomplete script with a command to
generate a bash autocomplete script.

This is because the setuptools `data_files` option/section is
deprecated, and there's really no good way to install this file with
setuptools.

setup.cfg

@@ -24,7 +24,6 @@ classifiers =
 	Topic :: Utilities
 
 [options]
-include_package_data = True
 package_dir = 
 	= src/
 packages = find:
@@ -33,9 +32,6 @@ install_requires =
 
 [options.packages.find]
 where = src
-include = 
-	passlib_cli
-	passlib_cli.*
 
 [options.extras_require]
 dev = 
@@ -50,6 +46,7 @@ scrypt =
 [options.entry_points]
 console_scripts = 
 	passlib-mkpasswd = passlib_cli.__main__:main
+	passlib-autocomplete = passlib_cli.complete:main
 
 [aliases]
 test = pytest

src/passlib_cli/complete.py

@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+# encoding: utf-8
+""" Get autocomplete script """
+from __future__ import (
+    absolute_import,
+    division,
+    print_function,
+    unicode_literals,
+)
+
+import argparse
+import logging
+import shlex
+# import textwrap
+
+from . import methods
+from . import cli_utils
+
+logger = logging.getLogger(__name__)
+
+
+OPTIONS = (
+    "--list-all",
+    "--list-methods",
+    "--list-params",
+    "--no-verify",
+    "--show-docstring",
+    "--show-params",
+    "--version",
+    "-h", "--help",
+    "-p", "--param",
+    "-s", "--show-plaintext",
+    "-v", "--verbose",
+)
+
+
+template = """
+_mkcrypt_autocomplete()
+{{
+    local curr
+    local -a methods opts
+
+    curr="${{COMP_WORDS[$COMP_CWORD]}}"
+    methods=( {methods} )
+    opts=( {options} )
+
+    COMPREPLY=()
+
+    if [[ "$curr" == -* ]];
+    then
+        COMPREPLY=( $(compgen -W "${{opts[*]}}" -- "$curr") )
+    elif [ "${{COMP_CWORD}}" -gt 1 ] \\
+          && [ "${{COMP_WORDS[$COMP_CWORD-1]}}" == "-p" ];
+    then
+        # TODO: Implement fetching known/valid settings from mkcrypt
+        COMPREPLY=()
+    else
+        COMPREPLY=( $(compgen -W "${{methods[*]}}" -- "$curr") )
+    fi
+}}
+
+complete -F _mkcrypt_autocomplete passlib-mkpasswd
+"""
+
+
+def format_text_list(items):
+    return " ".join(shlex.quote(item) for item in items)
+
+
+def format_autocomplete_script(methods):
+    return template.format(
+        options=format_text_list(OPTIONS),
+        methods=format_text_list(methods),
+    )
+
+
+def main(inargs=None):
+    parser = argparse.ArgumentParser(
+        description="Make autocomplete bash script for passlib",
+    )
+
+    cli_utils.add_verbosity_mutex(parser)
+    cli_utils.add_version_arg(parser)
+    args = parser.parse_args(inargs)
+
+    cli_utils.setup_logging(args.verbosity)
+
+    supported_methods = [m for m in methods.values() if m.supported]
+    method_list = [m.name for m in supported_methods]
+
+    # m = methods[args.show_params]
+    # for param in sorted(m.settings):
+    #     print(param)
+
+    script = format_autocomplete_script(method_list)
+    print(script)
+
+
+if __name__ == '__main__':
+    main()