dotfiles/install.py
Adam Gausmann 0d0832c4ff Copy permissions from template files
This fixes missing executable permissions in bin/ scripts.
2023-04-11 13:58:20 -05:00

135 lines
4.3 KiB
Python
Executable file

#!/usr/bin/env python3
import argparse
import os
import shutil
import socket
import sys
from functools import partial
from pathlib import Path
from typing import List
import mako.lookup
import mako.template
import requests
import toml
import yaml
BASE16_TEMPLATES_URL = 'https://raw.githubusercontent.com/chriskempson/base16-templates-source/master/list.yaml'
BASE16_TEMPLATES = yaml.safe_load(requests.get(BASE16_TEMPLATES_URL).text)
# Pending https://github.com/chriskempson/base16-templates-source/pull/106
BASE16_TEMPLATES['wofi-colors'] = 'https://github.com/agausmann/base16-wofi-colors'
def get_base16(scheme, app, template='default'):
base_url = BASE16_TEMPLATES[app]
if 'github.com' in base_url:
base_url = base_url.replace('github.com', 'raw.githubusercontent.com') + '/master/'
else:
base_url += '/blob/master/'
config = yaml.safe_load(requests.get(base_url + 'templates/config.yaml').text)
output = config[template]['output']
extension = config[template]['extension']
return requests.get(base_url + output + '/base16-' + scheme + extension).text
def is_outdated(src: List[Path], dst: Path) -> bool:
if not dst.exists():
return True
dst_modified = dst.stat().st_mtime
return any(
a_src.stat().st_mtime > dst_modified
for a_src in src
)
def main():
parser = argparse.ArgumentParser(
description='Generates and installs dotfiles for this host.',
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument(
'-d', '--dotfiles',
help='The base directory of the dotfiles repository.',
type=Path,
default=Path(sys.argv[0]).parent,
)
parser.add_argument(
'-n', '--hostname',
help='The hostname or other identifying name of this system that will'
' be used to retrieve the host-specific configuration.',
default=os.environ.get('HOSTNAME') or socket.gethostname(),
)
parser.add_argument(
'-o', '--home',
help='The home directory where generated dotfiles will be installed.',
type=Path,
default=os.environ.get('HOME') or Path.home(),
)
parser.add_argument(
'-f', '--force',
help='Force overwrite all files even if they are not considered outdated.',
action='store_true'
)
args = parser.parse_args()
raw_dir = args.dotfiles / 'raw'
templates_dir = args.dotfiles / 'templates'
include_dir = args.dotfiles / 'include'
host_filename = args.dotfiles / 'hosts' / '{}.toml'.format(args.hostname)
if host_filename.exists():
with open(host_filename) as host_file:
host_config = toml.load(host_file)
else:
host_config = {}
host_config['name'] = args.hostname
lookup = mako.lookup.TemplateLookup(
directories=[
str(templates_dir),
str(include_dir),
],
)
for raw_path in raw_dir.glob('**/*'):
if not raw_path.is_file():
continue
rel_path = raw_path.relative_to(raw_dir)
output_path = args.home / rel_path
if args.force or is_outdated([raw_path], output_path):
print(rel_path)
output_path.parent.mkdir(parents=True, exist_ok=True)
shutil.copy(raw_path, output_path)
for template_path in templates_dir.glob('**/*'):
if not template_path.is_file():
continue
rel_path = template_path.relative_to(templates_dir)
output_path = args.home / template_path.relative_to(templates_dir)
if args.force or is_outdated([template_path, host_filename], output_path):
print(rel_path)
template = mako.template.Template(
filename=str(template_path),
strict_undefined=True,
lookup=lookup,
)
output = template.render(
host=host_config,
home=args.home,
get_base16=partial(get_base16, host_config.get('base16-scheme', 'default-dark')),
)
output_path.parent.mkdir(parents=True, exist_ok=True)
with open(output_path, 'w+') as output_file:
output_file.write(output)
# Copy permissions from original file
output_path.chmod(template_path.stat().st_mode & 0x777)
if __name__ == '__main__':
main()