mirror of https://github.com/borgbackup/borg.git
atomically create the CACHE_TAG file, see #6028
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@ -10,6 +10,7 @@ import textwrap
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from .errors import Error
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from .errors import Error
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from .process import prepare_subprocess_env
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from .process import prepare_subprocess_env
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from ..platform import SaveFile
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from ..platformflags import is_win32
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from ..platformflags import is_win32
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from ..constants import * # NOQA
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from ..constants import * # NOQA
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@ -92,15 +93,14 @@ def get_cache_dir():
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cache_dir = os.environ.get('BORG_CACHE_DIR', os.path.join(cache_home, 'borg'))
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cache_dir = os.environ.get('BORG_CACHE_DIR', os.path.join(cache_home, 'borg'))
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# Create path if it doesn't exist yet
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# Create path if it doesn't exist yet
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ensure_dir(cache_dir)
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ensure_dir(cache_dir)
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cache_fn = os.path.join(cache_dir, CACHE_TAG_NAME)
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cache_tag_fn = os.path.join(cache_dir, CACHE_TAG_NAME)
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if not os.path.exists(cache_fn):
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cache_tag_contents = CACHE_TAG_CONTENTS + textwrap.dedent("""
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with open(cache_fn, 'wb') as fd:
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# This file is a cache directory tag created by Borg.
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fd.write(CACHE_TAG_CONTENTS)
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# For information about cache directory tags, see:
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fd.write(textwrap.dedent("""
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# http://www.bford.info/cachedir/spec.html
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# This file is a cache directory tag created by Borg.
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""").encode('ascii')
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# For information about cache directory tags, see:
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with SaveFile(cache_tag_fn, binary=True) as fd:
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# http://www.bford.info/cachedir/spec.html
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fd.write(cache_tag_contents)
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""").encode('ascii'))
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return cache_dir
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return cache_dir
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