104
97
"""Print file with id `file_id` to stdout."""
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99
sys.stdout.write(self.get_file_text(file_id))
102
def export(self, dest, format='dir', root=None):
103
"""Export this tree."""
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exporter = exporters[format]
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from bzrlib.errors import BzrCommandError
108
raise BzrCommandError("export format %r not supported" % format)
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exporter(self, dest, root)
115
113
class RevisionTree(Tree):
116
114
"""Tree viewing a previous revision.
122
120
or at least passing a description to the constructor.
125
def __init__(self, branch, inv, revision_id):
126
self._branch = branch
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self._weave_store = branch.weave_store
123
def __init__(self, weave_store, inv, revision_id):
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self._weave_store = weave_store
128
125
self._inventory = inv
129
126
self._revision_id = revision_id
131
128
def get_weave(self, file_id):
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return self._weave_store.get_weave(file_id,
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self._branch.get_transaction())
129
return self._weave_store.get_weave(file_id)
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def get_file_lines(self, file_id):
132
def get_file_text(self, file_id):
136
133
ie = self._inventory[file_id]
137
134
weave = self.get_weave(file_id)
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return weave.get_lines(ie.revision)
140
def get_file_text(self, file_id):
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return ''.join(self.get_file_lines(file_id))
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idx = weave.lookup(ie.text_version)
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content = weave.get_text(idx)
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if len(content) != ie.text_size:
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raise BzrCheckError('mismatched size on revision %s of file %s: '
140
% (self._revision_id, file_id, len(content),
143
144
def get_file(self, file_id):
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145
return StringIO(self.get_file_text(file_id))
151
152
if ie.kind == "file":
152
153
return ie.text_sha1
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def is_executable(self, file_id):
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ie = self._inventory[file_id]
156
if ie.kind != "file":
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return self._inventory[file_id].executable
160
155
def has_filename(self, filename):
161
156
return bool(self.inventory.path2id(filename))
163
158
def list_files(self):
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159
# The only files returned by this are those from the version
165
160
for path, entry in self.inventory.iter_entries():
166
yield path, 'V', entry.kind, entry.file_id, entry
168
def get_symlink_target(self, file_id):
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ie = self._inventory[file_id]
170
return ie.symlink_target;
172
def kind(self, file_id):
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return self._inventory[file_id].kind
176
self._branch.lock_read()
179
self._branch.unlock()
161
yield path, 'V', entry.kind, entry.file_id
182
164
class EmptyTree(Tree):
183
165
def __init__(self):
184
166
self._inventory = Inventory()
186
def get_symlink_target(self, file_id):
189
168
def has_filename(self, filename):
192
def kind(self, file_id):
193
assert self._inventory[file_id].kind == "root_directory"
194
return "root_directory"
196
171
def list_files(self):
172
if False: # just to make it a generator
199
175
def __contains__(self, file_id):
200
176
return file_id in self._inventory
251
######################################################################
254
def dir_exporter(tree, dest, root):
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"""Export this tree to a new directory.
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`dest` should not exist, and will be created holding the
258
contents of this tree.
260
TODO: To handle subdirectories we need to create the
263
:note: If the export fails, the destination directory will be
264
left in a half-assed state.
268
mutter('export version %r' % tree)
270
for dp, ie in inv.iter_entries():
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fullpath = appendpath(dest, dp)
273
if kind == 'directory':
276
pumpfile(tree.get_file(ie.file_id), file(fullpath, 'wb'))
278
raise BzrError("don't know how to export {%s} of kind %r" % (ie.file_id, kind))
279
mutter(" export {%s} kind %s to %s" % (ie.file_id, kind, fullpath))
280
exporters['dir'] = dir_exporter
287
def get_root_name(dest):
288
"""Get just the root name for a tarball.
290
>>> get_root_name('mytar.tar')
292
>>> get_root_name('mytar.tar.bz2')
294
>>> get_root_name('tar.tar.tar.tgz')
296
>>> get_root_name('bzr-0.0.5.tar.gz')
298
>>> get_root_name('a/long/path/mytar.tgz')
300
>>> get_root_name('../parent/../dir/other.tbz2')
303
endings = ['.tar', '.tar.gz', '.tgz', '.tar.bz2', '.tbz2']
304
dest = os.path.basename(dest)
306
if dest.endswith(end):
307
return dest[:-len(end)]
309
def tar_exporter(tree, dest, root, compression=None):
310
"""Export this tree to a new tar file.
312
`dest` will be created holding the contents of this tree; if it
313
already exists, it will be clobbered, like with "tar -c".
315
from time import time
317
compression = str(compression or '')
319
root = get_root_name(dest)
321
ball = tarfile.open(dest, 'w:' + compression)
322
except tarfile.CompressionError, e:
323
raise BzrError(str(e))
324
mutter('export version %r' % tree)
326
for dp, ie in inv.iter_entries():
327
mutter(" export {%s} kind %s to %s" % (ie.file_id, ie.kind, dest))
328
item = tarfile.TarInfo(os.path.join(root, dp))
329
# TODO: would be cool to actually set it to the timestamp of the
330
# revision it was last changed
332
if ie.kind == 'directory':
333
item.type = tarfile.DIRTYPE
338
elif ie.kind == 'file':
339
item.type = tarfile.REGTYPE
340
fileobj = tree.get_file(ie.file_id)
341
item.size = _find_file_size(fileobj)
344
raise BzrError("don't know how to export {%s} of kind %r" %
345
(ie.file_id, ie.kind))
347
ball.addfile(item, fileobj)
349
exporters['tar'] = tar_exporter
351
def tgz_exporter(tree, dest, root):
352
tar_exporter(tree, dest, root, compression='gz')
353
exporters['tgz'] = tgz_exporter
355
def tbz_exporter(tree, dest, root):
356
tar_exporter(tree, dest, root, compression='bz2')
357
exporters['tbz2'] = tbz_exporter
360
def _find_file_size(fileobj):
361
offset = fileobj.tell()
364
size = fileobj.tell()
366
# gzip doesn't accept second argument to seek()
370
nread = len(fileobj.read())