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
136
148
def get_file_sha1(self, file_id):
137
149
ie = self._inventory[file_id]
150
if ie.kind == "file":
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
140
159
def has_filename(self, filename):
141
160
return bool(self.inventory.path2id(filename))
143
162
def list_files(self):
144
163
# The only files returned by this are those from the version
145
164
for path, entry in self.inventory.iter_entries():
146
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
149
175
class EmptyTree(Tree):
150
176
def __init__(self):
151
177
self._inventory = Inventory()
179
def get_symlink_target(self, file_id):
153
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"
156
189
def list_files(self):
157
if False: # just to make it a generator
192
def __contains__(self, file_id):
193
return file_id in self._inventory
195
def get_file_sha1(self, file_id):
196
assert self._inventory[file_id].kind == "root_directory"
162
200
######################################################################
228
######################################################################
231
def dir_exporter(tree, dest, root):
232
"""Export this tree to a new directory.
234
`dest` should not exist, and will be created holding the
235
contents of this tree.
237
TODO: To handle subdirectories we need to create the
240
:note: If the export fails, the destination directory will be
241
left in a half-assed state.
245
mutter('export version %r' % tree)
247
for dp, ie in inv.iter_entries():
249
fullpath = appendpath(dest, dp)
250
if kind == 'directory':
253
pumpfile(tree.get_file(ie.file_id), file(fullpath, 'wb'))
255
raise BzrError("don't know how to export {%s} of kind %r" % (ie.file_id, kind))
256
mutter(" export {%s} kind %s to %s" % (ie.file_id, kind, fullpath))
257
exporters['dir'] = dir_exporter
264
def get_root_name(dest):
265
"""Get just the root name for a tarball.
267
>>> get_root_name('mytar.tar')
269
>>> get_root_name('mytar.tar.bz2')
271
>>> get_root_name('tar.tar.tar.tgz')
273
>>> get_root_name('bzr-0.0.5.tar.gz')
275
>>> get_root_name('a/long/path/mytar.tgz')
277
>>> get_root_name('../parent/../dir/other.tbz2')
280
endings = ['.tar', '.tar.gz', '.tgz', '.tar.bz2', '.tbz2']
281
dest = os.path.basename(dest)
283
if dest.endswith(end):
284
return dest[:-len(end)]
286
def tar_exporter(tree, dest, root, compression=None):
287
"""Export this tree to a new tar file.
289
`dest` will be created holding the contents of this tree; if it
290
already exists, it will be clobbered, like with "tar -c".
292
from time import time
294
compression = str(compression or '')
296
root = get_root_name(dest)
298
ball = tarfile.open(dest, 'w:' + compression)
299
except tarfile.CompressionError, e:
300
raise BzrError(str(e))
301
mutter('export version %r' % tree)
303
for dp, ie in inv.iter_entries():
304
mutter(" export {%s} kind %s to %s" % (ie.file_id, ie.kind, dest))
305
item = tarfile.TarInfo(os.path.join(root, dp))
306
# TODO: would be cool to actually set it to the timestamp of the
307
# revision it was last changed
309
if ie.kind == 'directory':
310
item.type = tarfile.DIRTYPE
315
elif ie.kind == 'file':
316
item.type = tarfile.REGTYPE
317
fileobj = tree.get_file(ie.file_id)
318
item.size = _find_file_size(fileobj)
321
raise BzrError("don't know how to export {%s} of kind %r" %
322
(ie.file_id, ie.kind))
324
ball.addfile(item, fileobj)
326
exporters['tar'] = tar_exporter
328
def tgz_exporter(tree, dest, root):
329
tar_exporter(tree, dest, root, compression='gz')
330
exporters['tgz'] = tgz_exporter
332
def tbz_exporter(tree, dest, root):
333
tar_exporter(tree, dest, root, compression='bz2')
334
exporters['tbz2'] = tbz_exporter
337
def _find_file_size(fileobj):
338
offset = fileobj.tell()
341
size = fileobj.tell()
343
# gzip doesn't accept second argument to seek()
347
nread = len(fileobj.read())
added
removed
bzrlib/tree.py
