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