• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# -*- coding: utf-8 -*-
2
3# Copyright 2020 The Pigweed Authors
4#
5# Licensed under the Apache License, Version 2.0 (the "License"); you may not
6# use this file except in compliance with the License. You may obtain a copy of
7# the License at
8#
9#     https://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14# License for the specific language governing permissions and limitations under
15# the License.
16"""Prints the env_setup banner for cmd.exe.
17
18This is done from Python as activating colors and printing ASCII art are not
19easy to do in cmd.exe. Activated colors also don't persist in the parent
20process.
21"""
22
23from __future__ import print_function
24
25import argparse
26import os
27import sys
28
29try:
30    from pw_env_setup.colors import Color, enable_colors
31except ImportError:
32    # Load from this directory if pw_env_setup is not available.
33    from colors import Color, enable_colors  # type: ignore
34
35
36_PIGWEED_BANNER = u'''
37 ▒█████▄   █▓  ▄███▒  ▒█    ▒█ ░▓████▒ ░▓████▒ ▒▓████▄
38  ▒█░  █░ ░█▒ ██▒ ▀█▒ ▒█░ █ ▒█  ▒█   ▀  ▒█   ▀  ▒█  ▀█▌
39  ▒█▄▄▄█░ ░█▒ █▓░ ▄▄░ ▒█░ █ ▒█  ▒███    ▒███    ░█   █▌
40  ▒█▀     ░█░ ▓█   █▓ ░█░ █ ▒█  ▒█   ▄  ▒█   ▄  ░█  ▄█▌
41  ▒█      ░█░ ░▓███▀   ▒█▓▀▓█░ ░▓████▒ ░▓████▒ ▒▓████▀
42'''
43
44
45def print_banner(bootstrap, no_shell_file):
46    """Print the Pigweed or project-specific banner"""
47    enable_colors()
48
49    print(Color.green('\n  WELCOME TO...'))
50
51    banner_file = os.environ.get('PW_BRANDING_BANNER', None)
52    banner_str = None
53    if banner_file:
54        try:
55            banner_str = open(
56                banner_file, 'r', encoding='utf-8', errors='replace'
57            ).read()
58        except FileNotFoundError:
59            pass
60    if banner_str:
61        print()
62        print(banner_str, end='')
63    else:
64        print(Color.magenta(_PIGWEED_BANNER), end='')
65
66    if bootstrap:
67        print(
68            Color.green(
69                '\n  BOOTSTRAP! Bootstrap may take a few minutes; '
70                'please be patient'
71            )
72        )
73        print(
74            Color.green(
75                '  On Windows, this stage is extremely slow (~10 minutes).\n'
76            )
77        )
78    else:
79        print(
80            Color.green(
81                '\n  ACTIVATOR! This sets your console environment variables.\n'
82            )
83        )
84
85        if no_shell_file:
86            print(Color.bold_red('Error!\n'))
87            print(
88                Color.red(
89                    '  Your Pigweed environment does not seem to be'
90                    ' configured.'
91                )
92            )
93            print(Color.red('  Run bootstrap.bat to perform initial setup.'))
94
95    return 0
96
97
98def parse():
99    """Parse command-line arguments."""
100    parser = argparse.ArgumentParser(
101        prog="python -m pw_env_setup.windows_env_start"
102    )
103    parser.add_argument('--bootstrap', action='store_true')
104    parser.add_argument('--no-shell-file', action='store_true')
105    return parser.parse_args()
106
107
108def main():
109    """Script entry point."""
110    if os.name != 'nt':
111        return 1
112    return print_banner(**vars(parse()))
113
114
115if __name__ == '__main__':
116    sys.exit(main())
117