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authorEgor Tensin <Egor.Tensin@gmail.com>2020-03-28 23:01:09 +0000
committerEgor Tensin <Egor.Tensin@gmail.com>2020-03-28 23:54:46 +0000
commitc58a3787eca9c0c4a7f376ba841cd7e39ab95ece (patch)
tree709b5ab8385bbb952912206ae561fbe5e1e752d8 /project/boost/archive.py
parentproject.boost: factor out BoostVersion (diff)
downloadcmake-common-c58a3787eca9c0c4a7f376ba841cd7e39ab95ece.tar.gz
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project.boost: factor out everything else
I finally snapped. This starts to resemble sensible structure though.
Diffstat (limited to '')
-rw-r--r--project/boost/archive.py87
1 files changed, 87 insertions, 0 deletions
diff --git a/project/boost/archive.py b/project/boost/archive.py
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index 0000000..55d05f2
--- /dev/null
+++ b/project/boost/archive.py
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+# Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+import abc
+from contextlib import contextmanager
+import logging
+import os.path
+import shutil
+import tempfile
+
+from project.boost.directory import BoostDir
+
+
+class Archive:
+ def __init__(self, version, path):
+ self.version = version
+ self.path = path
+
+ @property
+ def dir_name(self):
+ return self.version.dir_name
+
+ def unpack(self, dest_dir):
+ path = os.path.join(dest_dir, self.dir_name)
+ if os.path.exists(path):
+ raise RuntimeError(f'Boost directory already exists: {path}')
+ logging.info('Unpacking Boost to: %s', path)
+ shutil.unpack_archive(self.path, dest_dir)
+ return BoostDir(path)
+
+
+class ArchiveStorage(abc.ABC):
+ @abc.abstractmethod
+ def get_archive(self, version):
+ pass
+
+ @contextmanager
+ @abc.abstractmethod
+ def write_archive(self, version, contents):
+ pass
+
+
+class PermanentStorage(ArchiveStorage):
+ def __init__(self, cache_dir):
+ self._dir = cache_dir
+
+ def _archive_path(self, version):
+ return os.path.join(self._dir, version.archive_name)
+
+ def get_archive(self, version):
+ path = self._archive_path(version)
+ if os.path.exists(path):
+ return path
+ return None
+
+ @contextmanager
+ def write_archive(self, version, contents):
+ path = self._archive_path(version)
+ logging.info('Writing Boost archive: %s', path)
+ if os.path.exists(path):
+ raise RuntimeError(f'cannot download Boost, file already exists: {path}')
+ with open(path, mode='w+b') as dest:
+ dest.write(contents)
+ yield path
+
+
+class TemporaryStorage(ArchiveStorage):
+ def __init__(self, temp_dir):
+ self._dir = temp_dir
+
+ def get_archive(self, version):
+ return None
+
+ @contextmanager
+ def write_archive(self, version, contents):
+ with tempfile.NamedTemporaryFile(prefix=f'boost_{version}_', suffix=version.archive_ext,
+ dir=self._dir, delete=False) as dest:
+ path = dest.name
+ logging.info('Writing Boost archive: %s', path)
+ dest.write(contents)
+ try:
+ yield path
+ finally:
+ logging.info('Removing temporary Boost archive: %s', path)
+ os.remove(path)