|
| 1 | +import ast |
| 2 | +import io |
| 3 | +import os |
| 4 | +import os.path |
| 5 | +import pprint |
| 6 | +import tarfile |
| 7 | + |
| 8 | +from ._version import get_versions |
| 9 | +__version__ = get_versions()['version'] |
| 10 | +del get_versions |
| 11 | + |
| 12 | + |
| 13 | +_DIRECTORIES = [ |
| 14 | + 'agents', 'checkman', 'checks', 'doc', 'inventory', 'notifications', |
| 15 | + 'pnp-templates', 'web', |
| 16 | +] |
| 17 | + |
| 18 | + |
| 19 | +_VERSION_PACKAGED = 'python-mkp' |
| 20 | + |
| 21 | + |
| 22 | +def load_bytes(data): |
| 23 | + bytes_io = io.BytesIO(data) |
| 24 | + return Package(bytes_io) |
| 25 | + |
| 26 | + |
| 27 | +def find_files(path): |
| 28 | + result = {} |
| 29 | + for directory in _DIRECTORIES: |
| 30 | + result[directory] = _find_files_in_directory(os.path.join(path, directory)) |
| 31 | + |
| 32 | + return result |
| 33 | + |
| 34 | + |
| 35 | +def _find_files_in_directory(path): |
| 36 | + result = [] |
| 37 | + for root, dirs, files in os.walk(path): |
| 38 | + for dirname in dirs: |
| 39 | + if dirname.startswith('.'): |
| 40 | + dirs.remove(dirname) |
| 41 | + for filename in files: |
| 42 | + if filename.startswith('.'): |
| 43 | + continue |
| 44 | + elif filename.endswith('~'): |
| 45 | + continue |
| 46 | + abspath = os.path.join(root, filename) |
| 47 | + relpath = os.path.relpath(abspath, start=path) |
| 48 | + result.append(relpath) |
| 49 | + return result |
| 50 | + |
| 51 | + |
| 52 | +def pack_to_bytes(info, path): |
| 53 | + _patch_info(info) |
| 54 | + bytes_io = io.BytesIO() |
| 55 | + with tarfile.open(fileobj=bytes_io, mode='w:gz') as archive: |
| 56 | + info_data = pprint.pformat(info).encode() |
| 57 | + tarinfo, fileobj = _create_tarinfo_and_buffer(info_data, 'info') |
| 58 | + archive.addfile(tarinfo, fileobj=fileobj) |
| 59 | + |
| 60 | + for directory in _DIRECTORIES: |
| 61 | + files = info['files'].get(directory, []) |
| 62 | + if not files: |
| 63 | + continue |
| 64 | + |
| 65 | + directory_archive = _create_directory_archive(os.path.join(path, directory), files) |
| 66 | + tarinfo, fileobj = _create_tarinfo_and_buffer(directory_archive, directory + '.tar') |
| 67 | + archive.addfile(tarinfo, fileobj) |
| 68 | + |
| 69 | + return bytes_io.getvalue() |
| 70 | + |
| 71 | + |
| 72 | +def _patch_info(info): |
| 73 | + info['version.packaged'] = _VERSION_PACKAGED |
| 74 | + |
| 75 | + |
| 76 | +def _create_directory_archive(path, files): |
| 77 | + bytes_io = io.BytesIO() |
| 78 | + with tarfile.open(fileobj=bytes_io, mode='w') as archive: |
| 79 | + for filename in files: |
| 80 | + archive.add(os.path.join(path, filename), arcname=filename) |
| 81 | + |
| 82 | + return bytes_io.getvalue() |
| 83 | + |
| 84 | + |
| 85 | +def _create_tarinfo_and_buffer(data, filename): |
| 86 | + tarinfo = tarfile.TarInfo(filename) |
| 87 | + tarinfo.size = len(data) |
| 88 | + bytes_io = io.BytesIO(data) |
| 89 | + return tarinfo, bytes_io |
| 90 | + |
| 91 | + |
| 92 | +class Package(object): |
| 93 | + |
| 94 | + def __init__(self, fileobj): |
| 95 | + self.archive = tarfile.open(fileobj=fileobj) |
| 96 | + self._info = self._load_info() |
| 97 | + |
| 98 | + def _load_info(self): |
| 99 | + info_file = self.archive.extractfile('info') |
| 100 | + return ast.literal_eval(info_file.read().decode()) |
| 101 | + |
| 102 | + @property |
| 103 | + def info(self): |
| 104 | + return self._info |
| 105 | + |
| 106 | + def extract_files(self, path): |
| 107 | + for directory in _DIRECTORIES: |
| 108 | + self._extract_files_in_directory(path, directory) |
| 109 | + |
| 110 | + def _extract_files_in_directory(self, path, directory): |
| 111 | + files = self.info['files'].get(directory, []) |
| 112 | + |
| 113 | + if not files: |
| 114 | + return |
| 115 | + |
| 116 | + target_path = os.path.join(path, directory) |
| 117 | + os.makedirs(target_path) |
| 118 | + dir_archive_file = self.archive.extractfile(directory + '.tar') |
| 119 | + |
| 120 | + with tarfile.open(fileobj=dir_archive_file) as archive: |
| 121 | + members = [member for member in archive.getmembers() if member.name in files] |
| 122 | + archive.extractall(path=target_path, members=members) |
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