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81 lines
2.6 KiB
Python

#!/usr/bin/env python3
import os
from os import path
SCRIPT_ABS_PATH = path.abspath(__file__)
SCRIPT_NAME = path.basename(SCRIPT_ABS_PATH)
DOT_FILES_DIR = path.dirname(SCRIPT_ABS_PATH)
HOME_DIR = path.expanduser('~')
class ExistingFileError(OSError):
pass
class ExistingSymlinkError(OSError):
pass
def main(*, dot_files=DOT_FILES_DIR, home_dir=HOME_DIR):
for directory in walk_directories(dot_files):
hidden_dir = path.join(home_dir, '.' + directory)
make_directory(hidden_dir)
for filename in walk_files(dot_files):
dot_file = path.join(dot_files, filename)
new_file = path.join(home_dir, '.' + filename)
link_to(dot_file, new_file)
def walk_directories(directory):
visited = set()
for root, dirs, _ in os.walk(directory):
for d in (path.join(root, d) for d in dirs):
rel_dir = path.join(root, d).replace(directory + os.sep, '')
if rel_dir in visited:
continue
if path_contains(rel_dir, '.git'):
continue
yield rel_dir
visited.add(rel_dir)
def walk_files(directory):
visited = set()
for root, _, files in os.walk(directory):
for f in (path.join(root, f) for f in files if not f.startswith('.')):
relative_file = path.join(root, f).replace(directory + os.sep, '')
if relative_file in visited:
continue
if path_contains(relative_file, '.git', 'README.md', SCRIPT_NAME):
continue
yield relative_file
visited.add(relative_file)
def make_directory(directory):
if path.isdir(directory):
return
if path.exists(directory):
raise ExistingFileError('expected no file or directory: {0}'.format(directory))
os.mkdir(directory, mode=0o755)
def link_to(src, dest):
if path.islink(dest):
if path.realpath(src) == path.realpath(dest):
return
if path.exists(dest):
raise ExistingSymlinkError('found unexpected symlink: {0}'.format(dest))
# we have a broken symlink, remove it
os.remove(dest)
if path.isfile(dest):
raise ExistingSymlinkError('found unexpected file: {0}'.format(dest))
src_rel = path.relpath(src, start=path.dirname(dest))
dir_fd = os.open(path.dirname(dest), os.O_RDONLY)
os.symlink(src_rel, dest, dir_fd=dir_fd)
def path_contains(directory, *strings):
directories = directory.split(os.sep)
for s in strings:
if s in directories:
return True
return False
if __name__ == '__main__':
main()