1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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# Copyright (C) 2005 by Canonical Development Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""
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A store that keeps the full text of every version.
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This store keeps uncompressed versions of the full text. It does not
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do any sort of delta compression.
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"""
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1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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import os |
1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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import bzrlib.store |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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from bzrlib.store import hash_prefix |
1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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from bzrlib.trace import mutter |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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from bzrlib.errors import BzrError, NoSuchFile, FileExists |
1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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import gzip |
1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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from cStringIO import StringIO |
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1092.2.24
by Robert Collins
merge from martins newformat branch - brings in transport abstraction |
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class TextStore(bzrlib.store.TransportStore): |
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1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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"""Store that holds files indexed by unique names.
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Files can be added, but not modified once they are in. Typically
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the hash is used as the name, or something else known to be unique,
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such as a UUID.
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1393.2.4
by John Arbash Meinel
All tests pass. |
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Files are stored uncompressed, with no delta compression.
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1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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"""
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1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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def _add_compressed(self, fn, f): |
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from cStringIO import StringIO |
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from bzrlib.osutils import pumpfile |
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if isinstance(f, basestring): |
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f = StringIO(f) |
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sio = StringIO() |
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gf = gzip.GzipFile(mode='wb', fileobj=sio) |
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# if pumpfile handles files that don't fit in ram,
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# so will this function
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pumpfile(f, gf) |
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gf.close() |
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sio.seek(0) |
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1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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self._try_put(fn, sio) |
1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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1442.1.28
by Robert Collins
pull up core TransportStore.add from TextStore.add and CompressedTextStore.add |
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def _add(self, fn, f): |
1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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if self._compressed: |
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self._add_compressed(fn, f) |
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else: |
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1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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self._try_put(fn, f) |
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def _try_put(self, fn, f): |
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try: |
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1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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self._transport.put(fn, f, mode=self._file_mode) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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except NoSuchFile: |
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if not self._prefixed: |
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raise
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try: |
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1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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self._transport.mkdir(os.path.dirname(fn), mode=self._dir_mode) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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except FileExists: |
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pass
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1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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self._transport.put(fn, f, mode=self._file_mode) |
1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
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1442.1.39
by Robert Collins
unify has() implementations for TransportStore classes |
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def _get(self, fn): |
1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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if fn.endswith('.gz'): |
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return self._get_compressed(fn) |
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else: |
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return self._transport.get(fn) |
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def _copy_one(self, fileid, suffix, other, pb): |
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# TODO: Once the copy_to interface is improved to allow a source
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# and destination targets, then we can always do the copy
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# as long as other is a TextStore
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if not (isinstance(other, TextStore) |
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and other._prefixed == self._prefixed): |
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return super(TextStore, self)._copy_one(fileid, suffix, other, pb) |
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1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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mutter('_copy_one: %r, %r', fileid, suffix) |
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1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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path = other._get_name(fileid, suffix) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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if path is None: |
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raise KeyError(fileid + '-' + str(suffix)) |
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try: |
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1551.3.11
by Aaron Bentley
Merge from Robert |
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result = other._transport.copy_to([path], self._transport, |
1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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mode=self._file_mode) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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except NoSuchFile: |
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if not self._prefixed: |
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raise
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try: |
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1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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self._transport.mkdir(hash_prefix(fileid)[:-1], mode=self._dir_mode) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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except FileExists: |
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pass
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1551.3.11
by Aaron Bentley
Merge from Robert |
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result = other._transport.copy_to([path], self._transport, |
1185.58.4
by John Arbash Meinel
Added permission checking to Branch, and propogated that change into the stores. |
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mode=self._file_mode) |
1185.16.159
by John Arbash Meinel
Updated the stores, all tests pass, and a store doesn't have to be 100% compressed |
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1185.16.157
by John Arbash Meinel
Added ability for TextStore to handle both compressed and uncompressed, it just looks for one type first |
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if result != 1: |
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raise BzrError('Unable to copy file: %r' % (path,)) |
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def _get_compressed(self, filename): |
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"""Returns a file reading from a particular entry."""
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f = self._transport.get(filename) |
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# gzip.GzipFile.read() requires a tell() function
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# but some transports return objects that cannot seek
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# so buffer them in a StringIO instead
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if hasattr(f, 'tell'): |
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return gzip.GzipFile(mode='rb', fileobj=f) |
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else: |
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from cStringIO import StringIO |
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sio = StringIO(f.read()) |
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return gzip.GzipFile(mode='rb', fileobj=sio) |
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1393.2.2
by John Arbash Meinel
Updated stores to use Transport |
125 |
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1092.2.24
by Robert Collins
merge from martins newformat branch - brings in transport abstraction |
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1442.1.41
by Robert Collins
move duplicate scratch logic into a scratch transport |
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def ScratchTextStore(): |
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return TextStore(ScratchTransport()) |