92
100
"store is probably damaged/corrupt"])
95
def print_file(self, fileid):
96
"""Print file with id `fileid` to stdout."""
103
def print_file(self, file_id):
104
"""Print file with id `file_id` to stdout."""
98
pumpfile(self.get_file(fileid), sys.stdout)
101
def export(self, dest, format='dir', root=None):
102
"""Export this tree."""
104
exporter = exporters[format]
106
from bzrlib.errors import BzrCommandError
107
raise BzrCommandError("export format %r not supported" % format)
108
exporter(self, dest, root)
106
sys.stdout.write(self.get_file_text(file_id))
112
109
class RevisionTree(Tree):
113
110
"""Tree viewing a previous revision.
119
116
or at least passing a description to the constructor.
122
def __init__(self, store, inv):
119
def __init__(self, weave_store, inv, revision_id):
120
self._weave_store = weave_store
124
121
self._inventory = inv
122
self._revision_id = revision_id
124
def get_weave(self, file_id):
125
# FIXME: RevisionTree should be given a branch
126
# not a store, or the store should know the branch.
127
import bzrlib.transactions as transactions
128
return self._weave_store.get_weave(file_id,
129
transactions.PassThroughTransaction())
132
def get_file_lines(self, file_id):
133
ie = self._inventory[file_id]
134
weave = self.get_weave(file_id)
135
return weave.get(ie.revision)
138
def get_file_text(self, file_id):
139
return ''.join(self.get_file_lines(file_id))
126
142
def get_file(self, file_id):
127
ie = self._inventory[file_id]
128
f = self._store[ie.text_id]
129
mutter(" get fileid{%s} from %r" % (file_id, self))
130
self._check_retrieved(ie, f)
143
return StringIO(self.get_file_text(file_id))
133
145
def get_file_size(self, file_id):
134
146
return self._inventory[file_id].text_size
138
150
if ie.kind == "file":
139
151
return ie.text_sha1
153
def is_executable(self, file_id):
154
ie = self._inventory[file_id]
155
if ie.kind != "file":
157
return self._inventory[file_id].executable
141
159
def has_filename(self, filename):
142
160
return bool(self.inventory.path2id(filename))
144
162
def list_files(self):
145
163
# The only files returned by this are those from the version
146
164
for path, entry in self.inventory.iter_entries():
147
yield path, 'V', entry.kind, entry.file_id
165
yield path, 'V', entry.kind, entry.file_id, entry
167
def get_symlink_target(self, file_id):
168
ie = self._inventory[file_id]
169
return ie.symlink_target;
171
def kind(self, file_id):
172
return self._inventory[file_id].kind
150
175
class EmptyTree(Tree):
151
176
def __init__(self):
152
177
self._inventory = Inventory()
179
def get_symlink_target(self, file_id):
154
182
def has_filename(self, filename):
185
def kind(self, file_id):
186
assert self._inventory[file_id].kind == "root_directory"
187
return "root_directory"
157
189
def list_files(self):
158
if False: # just to make it a generator
161
192
def __contains__(self, file_id):
162
193
return file_id in self._inventory
237
######################################################################
240
def dir_exporter(tree, dest, root):
241
"""Export this tree to a new directory.
243
`dest` should not exist, and will be created holding the
244
contents of this tree.
246
TODO: To handle subdirectories we need to create the
249
:note: If the export fails, the destination directory will be
250
left in a half-assed state.
254
mutter('export version %r' % tree)
256
for dp, ie in inv.iter_entries():
258
fullpath = appendpath(dest, dp)
259
if kind == 'directory':
262
pumpfile(tree.get_file(ie.file_id), file(fullpath, 'wb'))
264
raise BzrError("don't know how to export {%s} of kind %r" % (ie.file_id, kind))
265
mutter(" export {%s} kind %s to %s" % (ie.file_id, kind, fullpath))
266
exporters['dir'] = dir_exporter
273
def get_root_name(dest):
274
"""Get just the root name for a tarball.
276
>>> get_root_name('mytar.tar')
278
>>> get_root_name('mytar.tar.bz2')
280
>>> get_root_name('tar.tar.tar.tgz')
282
>>> get_root_name('bzr-0.0.5.tar.gz')
284
>>> get_root_name('a/long/path/mytar.tgz')
286
>>> get_root_name('../parent/../dir/other.tbz2')
289
endings = ['.tar', '.tar.gz', '.tgz', '.tar.bz2', '.tbz2']
290
dest = os.path.basename(dest)
292
if dest.endswith(end):
293
return dest[:-len(end)]
295
def tar_exporter(tree, dest, root, compression=None):
296
"""Export this tree to a new tar file.
298
`dest` will be created holding the contents of this tree; if it
299
already exists, it will be clobbered, like with "tar -c".
301
from time import time
303
compression = str(compression or '')
305
root = get_root_name(dest)
307
ball = tarfile.open(dest, 'w:' + compression)
308
except tarfile.CompressionError, e:
309
raise BzrError(str(e))
310
mutter('export version %r' % tree)
312
for dp, ie in inv.iter_entries():
313
mutter(" export {%s} kind %s to %s" % (ie.file_id, ie.kind, dest))
314
item = tarfile.TarInfo(os.path.join(root, dp))
315
# TODO: would be cool to actually set it to the timestamp of the
316
# revision it was last changed
318
if ie.kind == 'directory':
319
item.type = tarfile.DIRTYPE
324
elif ie.kind == 'file':
325
item.type = tarfile.REGTYPE
326
fileobj = tree.get_file(ie.file_id)
327
item.size = _find_file_size(fileobj)
330
raise BzrError("don't know how to export {%s} of kind %r" %
331
(ie.file_id, ie.kind))
333
ball.addfile(item, fileobj)
335
exporters['tar'] = tar_exporter
337
def tgz_exporter(tree, dest, root):
338
tar_exporter(tree, dest, root, compression='gz')
339
exporters['tgz'] = tgz_exporter
341
def tbz_exporter(tree, dest, root):
342
tar_exporter(tree, dest, root, compression='bz2')
343
exporters['tbz2'] = tbz_exporter
346
def _find_file_size(fileobj):
347
offset = fileobj.tell()
350
size = fileobj.tell()
352
# gzip doesn't accept second argument to seek()
356
nread = len(fileobj.read())
added
removed
bzrlib/tree.py
