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# Copyright (C) 2004, 2005 by Martin Pool
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# Copyright (C) 2005 by Canonical Ltd
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# Copyright (C) 2005-2010 Canonical 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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"""Bazaar-NG -- a free distributed version-control tool
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**WARNING: THIS IS AN UNSTABLE DEVELOPMENT VERSION**
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Current limitation include:
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* Metadata format is not stable yet -- you may need to
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discard history in the future.
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* No handling of subdirectories, symlinks or any non-text files.
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* Insufficient error handling.
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* Many commands unimplemented or partially implemented.
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* Space-inefficient storage.
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* No merge operators yet.
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Interesting commands::
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Show summary help screen
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Show software version/licence/non-warranty.
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Start versioning the current directory
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Show revision history.
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Show changes from last revision to working copy.
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bzr commit -m 'MESSAGE'
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Store current state as new revision.
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bzr export REVNO DESTINATION
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Export the branch state at a previous version.
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Show summary of pending changes.
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Make a file not versioned.
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# not currently working:
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# Show some information about this branch.
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__copyright__ = "Copyright 2005 Canonical Development Ltd."
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__author__ = "Martin Pool <mbp@canonical.com>"
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__docformat__ = "restructuredtext en"
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import sys, os, random, time, sha, sets, types, re, shutil, tempfile
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import traceback, socket, fnmatch, difflib
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from pprint import pprint
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# TODO: Define arguments by objects, rather than just using names.
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# Those objects can specify the expected type of the argument, which
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# would help with validation and shell completion. They could also provide
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# help/explanation for that argument in a structured way.
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# TODO: Specific "examples" property on commands for consistent formatting.
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from warnings import warn
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from bzrlib.store import ImmutableStore
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from bzrlib.trace import mutter, note, log_error
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from bzrlib.errors import bailout, BzrError
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from bzrlib.osutils import quotefn, pumpfile, isdir, isfile
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from bzrlib.tree import RevisionTree, EmptyTree, WorkingTree, Tree
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from bzrlib.revision import Revision
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from bzrlib import Branch, Inventory, InventoryEntry, ScratchBranch, BZRDIR, \
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BZR_DIFF_FORMAT = "## Bazaar-NG diff, format 0 ##\n"
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BZR_PATCHNAME_FORMAT = 'cset:sha1:%s'
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## standard representation
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NONE_STRING = '(none)'
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## TODO: Perhaps a different version of inventory commands that
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## returns iterators...
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## TODO: Perhaps an AtomicFile class that writes to a temporary file and then renames.
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## TODO: Some kind of locking on branches. Perhaps there should be a
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## parameter to the branch object saying whether we want a read or
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## write lock; release it from destructor. Perhaps don't even need a
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## read lock to look at immutable objects?
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## TODO: Perhaps make UUIDs predictable in test mode to make it easier
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## to compare output?
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## TODO: Some kind of global code to generate the right Branch object
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## to work on. Almost, but not quite all, commands need one, and it
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## can be taken either from their parameters or their working
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def cmd_status(all=False):
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"""Display status summary.
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For each file there is a single line giving its file state and name.
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The name is that in the current revision unless it is deleted or
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missing, in which case the old name is shown.
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:todo: Don't show unchanged files unless ``--all`` is given?
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Branch('.').show_status(show_all=all)
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######################################################################
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def cmd_get_revision(revision_id):
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Branch('.').get_revision(revision_id).write_xml(sys.stdout)
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def cmd_get_file_text(text_id):
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"""Get contents of a file by hash."""
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sf = Branch('.').text_store[text_id]
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pumpfile(sf, sys.stdout)
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######################################################################
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"""Show number of revisions on this branch"""
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print Branch('.').revno()
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def cmd_add(file_list, verbose=False):
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"""Add specified files.
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Fails if the files are already added.
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Branch('.').add(file_list, verbose=verbose)
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def cmd_inventory(revision=None):
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"""Show inventory of the current working copy."""
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## TODO: Also optionally show a previous inventory
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## TODO: Format options
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inv = b.read_working_inventory()
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inv = b.get_revision_inventory(b.lookup_revision(revision))
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for path, entry in inv.iter_entries():
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print '%-50s %s' % (entry.file_id, path)
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print 'branch format:', b.controlfile('branch-format', 'r').readline().rstrip('\n')
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def plural(n, base='', pl=None):
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count_version_dirs = 0
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count_status = {'A': 0, 'D': 0, 'M': 0, 'R': 0, '?': 0, 'I': 0, '.': 0}
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for st_tup in bzrlib.diff_trees(b.basis_tree(), b.working_tree()):
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count_status[fs] += 1
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if fs not in ['I', '?'] and st_tup[4] == 'directory':
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count_version_dirs += 1
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print 'in the working tree:'
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for name, fs in (('unchanged', '.'),
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('modified', 'M'), ('added', 'A'), ('removed', 'D'),
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('renamed', 'R'), ('unknown', '?'), ('ignored', 'I'),
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print ' %5d %s' % (count_status[fs], name)
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print ' %5d versioned subdirector%s' % (count_version_dirs,
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plural(count_version_dirs, 'y', 'ies'))
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print 'branch history:'
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history = b.revision_history()
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print ' %5d revision%s' % (revno, plural(revno))
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committers.add(b.get_revision(rev).committer)
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print ' %5d committer%s' % (len(committers), plural(len(committers)))
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firstrev = b.get_revision(history[0])
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age = int((time.time() - firstrev.timestamp) / 3600 / 24)
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print ' %5d day%s old' % (age, plural(age))
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print ' first revision: %s' % format_date(firstrev.timestamp,
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lastrev = b.get_revision(history[-1])
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print ' latest revision: %s' % format_date(lastrev.timestamp,
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def cmd_remove(file_list, verbose=False):
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Branch('.').remove(file_list, verbose=verbose)
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def cmd_file_id(filename):
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i = Branch('.').read_working_inventory().path2id(filename)
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bailout("%s is not a versioned file" % filename)
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def cmd_find_filename(fileid):
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n = find_filename(fileid)
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bailout("%s is not a live file id" % fileid)
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def cmd_revision_history():
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for patchid in Branch('.').revision_history():
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# TODO: Check we're not already in a working directory? At the
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# moment you'll get an ugly error.
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# TODO: What if we're in a subdirectory of a branch? Would like
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# to allow that, but then the parent may need to understand that
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# the children have disappeared, or should they be versioned in
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# TODO: Take an argument/option for branch name.
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Branch('.', init=True)
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def cmd_diff(revision=None):
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"""Show diff from basis to working copy.
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:todo: Take one or two revision arguments, look up those trees,
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:todo: Allow diff across branches.
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:todo: Mangle filenames in diff to be more relevant.
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:todo: Shouldn't be in the cmd function.
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old_tree = b.basis_tree()
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old_tree = b.revision_tree(b.lookup_revision(revision))
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new_tree = b.working_tree()
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old_inv = old_tree.inventory
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new_inv = new_tree.inventory
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# TODO: Options to control putting on a prefix or suffix, perhaps as a format string
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DEVNULL = '/dev/null'
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# Windows users, don't panic about this filename -- it is a
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# special signal to GNU patch that the file should be created or
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# deleted respectively.
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# TODO: Generation of pseudo-diffs for added/deleted files could
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# be usefully made into a much faster special case.
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# TODO: Better to return them in sorted order I think.
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for file_state, fid, old_name, new_name, kind in bzrlib.diff_trees(old_tree, new_tree):
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# Don't show this by default; maybe do it if an option is passed
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# idlabel = ' {%s}' % fid
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# FIXME: Something about the diff format makes patch unhappy
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# with newly-added files.
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def diffit(*a, **kw):
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sys.stdout.writelines(difflib.unified_diff(*a, **kw))
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if file_state in ['.', '?', 'I']:
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elif file_state == 'A':
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print '*** added %s %r' % (kind, new_name)
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new_tree.get_file(fid).readlines(),
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tofile=new_label + new_name + idlabel)
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elif file_state == 'D':
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assert isinstance(old_name, types.StringTypes)
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print '*** deleted %s %r' % (kind, old_name)
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diffit(old_tree.get_file(fid).readlines(), [],
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fromfile=old_label + old_name + idlabel,
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elif file_state in ['M', 'R']:
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if file_state == 'M':
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assert kind == 'file'
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assert old_name == new_name
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print '*** modified %s %r' % (kind, new_name)
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elif file_state == 'R':
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print '*** renamed %s %r => %r' % (kind, old_name, new_name)
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diffit(old_tree.get_file(fid).readlines(),
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new_tree.get_file(fid).readlines(),
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fromfile=old_label + old_name + idlabel,
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tofile=new_label + new_name)
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bailout("can't represent state %s {%s}" % (file_state, fid))
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def cmd_log(timezone='original'):
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"""Show log of this branch.
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:todo: Options for utc; to show ids; to limit range; etc.
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Branch('.').write_log(show_timezone=timezone)
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def cmd_ls(revision=None, verbose=False):
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"""List files in a tree.
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:todo: Take a revision or remote path and list that tree instead.
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tree = b.working_tree()
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tree = b.revision_tree(b.lookup_revision(revision))
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for fp, fc, kind, fid in tree.list_files():
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from bzrlib.hooks import HookPoint, Hooks
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# Compatibility - Option used to be in commands.
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from bzrlib.option import Option
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from bzrlib.plugin import disable_plugins, load_plugins
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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class CommandInfo(object):
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"""Information about a command."""
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def __init__(self, aliases):
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"""The list of aliases for the command."""
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self.aliases = aliases
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def from_command(klass, command):
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"""Factory to construct a CommandInfo from a command."""
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return klass(command.aliases)
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class CommandRegistry(registry.Registry):
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"""Special registry mapping command names to command classes.
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:ivar overridden_registry: Look in this registry for commands being
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overridden by this registry. This can be used to tell plugin commands
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about the builtin they're decorating.
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registry.Registry.__init__(self)
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self.overridden_registry = None
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# map from aliases to the real command that implements the name
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def get(self, command_name):
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real_name = self._alias_dict.get(command_name, command_name)
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return registry.Registry.get(self, real_name)
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def _get_name(command_name):
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if command_name.startswith("cmd_"):
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return _unsquish_command_name(command_name)
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def register(self, cmd, decorate=False):
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"""Utility function to help register a command
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:param cmd: Command subclass to register
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:param decorate: If true, allow overriding an existing command
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of the same name; the old command is returned by this function.
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Otherwise it is an error to try to override an existing command.
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k_unsquished = self._get_name(k)
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previous = self.get(k_unsquished)
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if self.overridden_registry:
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previous = self.overridden_registry.get(k_unsquished)
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info = CommandInfo.from_command(cmd)
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registry.Registry.register(self, k_unsquished, cmd,
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override_existing=decorate, info=info)
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trace.warning('Two plugins defined the same command: %r' % k)
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trace.warning('Not loading the one in %r' %
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sys.modules[cmd.__module__])
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trace.warning('Previously this command was registered from %r' %
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sys.modules[previous.__module__])
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for a in cmd.aliases:
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self._alias_dict[a] = k_unsquished
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def register_lazy(self, command_name, aliases, module_name):
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"""Register a command without loading its module.
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:param command_name: The primary name of the command.
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:param aliases: A list of aliases for the command.
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:module_name: The module that the command lives in.
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key = self._get_name(command_name)
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registry.Registry.register_lazy(self, key, module_name, command_name,
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info=CommandInfo(aliases))
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self._alias_dict[a] = key
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plugin_cmds = CommandRegistry()
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builtin_command_registry = CommandRegistry()
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plugin_cmds.overridden_registry = builtin_command_registry
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def register_command(cmd, decorate=False):
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"""Register a plugin command.
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Should generally be avoided in favor of lazy registration.
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return plugin_cmds.register(cmd, decorate)
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def _squish_command_name(cmd):
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return 'cmd_' + cmd.replace('-', '_')
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def _unsquish_command_name(cmd):
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return cmd[4:].replace('_','-')
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@deprecated_function(deprecated_in((2, 2, 0)))
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def _builtin_commands():
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"""Return a dict of {name: cmd_class} for builtin commands.
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:deprecated: Use the builtin_command_registry registry instead
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# return dict(name: cmd_class)
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return dict(builtin_command_registry.items())
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def _register_builtin_commands():
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if builtin_command_registry.keys():
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import bzrlib.builtins
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for cmd_class in _scan_module_for_commands(bzrlib.builtins).values():
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builtin_command_registry.register(cmd_class)
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bzrlib.builtins._register_lazy_builtins()
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def _scan_module_for_commands(module):
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for name, obj in module.__dict__.iteritems():
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if name.startswith("cmd_"):
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real_name = _unsquish_command_name(name)
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def _list_bzr_commands(names):
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"""Find commands from bzr's core and plugins.
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This is not the public interface, just the default hook called by all_command_names.
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# to eliminate duplicates
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names.update(builtin_command_names())
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names.update(plugin_command_names())
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def all_command_names():
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"""Return a set of all command names."""
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for hook in Command.hooks['list_commands']:
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raise AssertionError(
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'hook %s returned None' % Command.hooks.get_hook_name(hook))
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def builtin_command_names():
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"""Return list of builtin command names.
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Use of all_command_names() is encouraged rather than builtin_command_names
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and/or plugin_command_names.
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_register_builtin_commands()
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return builtin_command_registry.keys()
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def plugin_command_names():
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"""Returns command names from commands registered by plugins."""
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return plugin_cmds.keys()
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def get_cmd_object(cmd_name, plugins_override=True):
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"""Return the command object for a command.
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If true, plugin commands can override builtins.
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return _get_cmd_object(cmd_name, plugins_override)
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raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
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def _get_cmd_object(cmd_name, plugins_override=True, check_missing=True):
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"""Get a command object.
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:param cmd_name: The name of the command.
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:param plugins_override: Allow plugins to override builtins.
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:param check_missing: Look up commands not found in the regular index via
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the get_missing_command hook.
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:return: A Command object instance
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:raises KeyError: If no command is found.
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# We want only 'ascii' command names, but the user may have typed
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# in a Unicode name. In that case, they should just get a
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# 'command not found' error later.
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# In the future, we may actually support Unicode command names.
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for hook in Command.hooks['get_command']:
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cmd = hook(cmd, cmd_name)
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if cmd is not None and not plugins_override and not cmd.plugin_name():
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# We've found a non-plugin command, don't permit it to be
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if cmd is None and check_missing:
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for hook in Command.hooks['get_missing_command']:
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# Allow plugins to extend commands
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for hook in Command.hooks['extend_command']:
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def _try_plugin_provider(cmd_name):
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"""Probe for a plugin provider having cmd_name."""
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plugin_metadata, provider = probe_for_provider(cmd_name)
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raise errors.CommandAvailableInPlugin(cmd_name,
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plugin_metadata, provider)
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except errors.NoPluginAvailable:
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def probe_for_provider(cmd_name):
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"""Look for a provider for cmd_name.
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:param cmd_name: The command name.
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:return: plugin_metadata, provider for getting cmd_name.
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:raises NoPluginAvailable: When no provider can supply the plugin.
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# look for providers that provide this command but aren't installed
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for provider in command_providers_registry:
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return provider.plugin_for_command(cmd_name), provider
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except errors.NoPluginAvailable:
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raise errors.NoPluginAvailable(cmd_name)
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def _get_bzr_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's core."""
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cmd_class = builtin_command_registry.get(cmd_name)
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def _get_external_command(cmd_or_None, cmd_name):
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"""Lookup a command that is a shell script."""
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# Only do external command lookups when no command is found so far.
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if cmd_or_None is not None:
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from bzrlib.externalcommand import ExternalCommand
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cmd_obj = ExternalCommand.find_command(cmd_name)
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def _get_plugin_command(cmd_or_None, cmd_name):
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"""Get a command from bzr's plugins."""
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return plugin_cmds.get(cmd_name)()
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for key in plugin_cmds.keys():
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info = plugin_cmds.get_info(key)
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if cmd_name in info.aliases:
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return plugin_cmds.get(key)()
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class Command(object):
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"""Base class for commands.
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Commands are the heart of the command-line bzr interface.
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The command object mostly handles the mapping of command-line
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parameters into one or more bzrlib operations, and of the results
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Commands normally don't have any state. All their arguments are
353
passed in to the run method. (Subclasses may take a different
354
policy if the behaviour of the instance needs to depend on e.g. a
355
shell plugin and not just its Python class.)
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The docstring for an actual command should give a single-line
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summary, then a complete description of the command. A grammar
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description will be inserted.
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Other accepted names for this command.
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List of argument forms, marked with whether they are optional,
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['to_location', 'from_branch?', 'file*']
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'to_location' is required
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'from_branch' is optional
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'file' can be specified 0 or more times
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List of options that may be given for this command. These can
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be either strings, referring to globally-defined options,
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or option objects. Retrieve through options().
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If true, this command isn't advertised. This is typically
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for commands intended for expert users.
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Command objects will get a 'outf' attribute, which has been
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setup to properly handle encoding of unicode strings.
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encoding_type determines what will happen when characters cannot
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strict - abort if we cannot decode
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replace - put in a bogus character (typically '?')
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exact - do not encode sys.stdout
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NOTE: by default on Windows, sys.stdout is opened as a text
395
stream, therefore LF line-endings are converted to CRLF.
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When a command uses encoding_type = 'exact', then
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sys.stdout is forced to be a binary stream, and line-endings
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:cvar hooks: An instance of CommandHooks.
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:ivar __doc__: The help shown by 'bzr help command' for this command.
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This is set by assigning explicitly to __doc__ so that -OO can
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__doc__ = "My help goes here"
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encoding_type = 'strict'
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"""Construct an instance of this command."""
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# List of standard options directly supported
418
self.supported_std_options = []
421
def add_cleanup(self, cleanup_func, *args, **kwargs):
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"""Register a function to call after self.run returns or raises.
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Functions will be called in LIFO order.
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self._operation.add_cleanup(cleanup_func, *args, **kwargs)
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def cleanup_now(self):
429
"""Execute and empty pending cleanup functions immediately.
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After cleanup_now all registered cleanups are forgotten. add_cleanup
432
may be called again after cleanup_now; these cleanups will be called
433
after self.run returns or raises (or when cleanup_now is next called).
435
This is useful for releasing expensive or contentious resources (such
436
as write locks) before doing further work that does not require those
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resources (such as writing results to self.outf). Note though, that
438
as it releases all resources, this may release locks that the command
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wants to hold, so use should be done with care.
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self._operation.cleanup_now()
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@deprecated_method(deprecated_in((2, 1, 0)))
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def _maybe_expand_globs(self, file_list):
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"""Glob expand file_list if the platform does not do that itself.
447
Not used anymore, now that the bzr command-line parser globs on
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:return: A possibly empty list of unicode paths.
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Introduced in bzrlib 0.18.
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"""Return single-line grammar for this command.
459
Only describes arguments, not options.
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s = 'bzr ' + self.name() + ' '
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for aname in self.takes_args:
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aname = aname.upper()
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if aname[-1] in ['$', '+']:
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aname = aname[:-1] + '...'
466
elif aname[-1] == '?':
467
aname = '[' + aname[:-1] + ']'
468
elif aname[-1] == '*':
469
aname = '[' + aname[:-1] + '...]'
471
s = s[:-1] # remove last space
474
def get_help_text(self, additional_see_also=None, plain=True,
475
see_also_as_links=False, verbose=True):
476
"""Return a text string with help for this command.
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:param additional_see_also: Additional help topics to be
480
:param plain: if False, raw help (reStructuredText) is
481
returned instead of plain text.
482
:param see_also_as_links: if True, convert items in 'See also'
483
list to internal links (used by bzr_man rstx generator)
484
:param verbose: if True, display the full help, otherwise
485
leave out the descriptive sections and just display
486
usage help (e.g. Purpose, Usage, Options) with a
487
message explaining how to obtain full help.
491
doc = "No help for this command."
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# Extract the summary (purpose) and sections out from the text
494
purpose,sections,order = self._get_help_parts(doc)
496
# If a custom usage section was provided, use it
497
if sections.has_key('Usage'):
498
usage = sections.pop('Usage')
500
usage = self._usage()
502
# The header is the purpose and usage
504
result += ':Purpose: %s\n' % purpose
505
if usage.find('\n') >= 0:
506
result += ':Usage:\n%s\n' % usage
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result += ':Usage: %s\n' % usage
513
# XXX: optparse implicitly rewraps the help, and not always perfectly,
514
# so we get <https://bugs.launchpad.net/bzr/+bug/249908>. -- mbp
516
options = option.get_optparser(self.options()).format_option_help()
517
# XXX: According to the spec, ReST option lists actually don't support
518
# options like --1.9 so that causes syntax errors (in Sphinx at least).
519
# As that pattern always appears in the commands that break, we trap
520
# on that and then format that block of 'format' options as a literal
522
if not plain and options.find(' --1.9 ') != -1:
523
options = options.replace(' format:\n', ' format::\n\n', 1)
524
if options.startswith('Options:'):
525
result += ':' + options
526
elif options.startswith('options:'):
527
# Python 2.4 version of optparse
528
result += ':Options:' + options[len('options:'):]
382
if kind == 'directory':
534
# Add the description, indenting it 2 spaces
535
# to match the indentation of the options
536
if sections.has_key(None):
537
text = sections.pop(None)
538
text = '\n '.join(text.splitlines())
539
result += ':%s:\n %s\n\n' % ('Description',text)
541
# Add the custom sections (e.g. Examples). Note that there's no need
542
# to indent these as they must be indented already in the source.
545
if sections.has_key(label):
546
result += ':%s:\n%s\n' % (label,sections[label])
549
result += ("See bzr help %s for more details and examples.\n\n"
552
# Add the aliases, source (plug-in) and see also links, if any
554
result += ':Aliases: '
555
result += ', '.join(self.aliases) + '\n'
556
plugin_name = self.plugin_name()
557
if plugin_name is not None:
558
result += ':From: plugin "%s"\n' % plugin_name
559
see_also = self.get_see_also(additional_see_also)
561
if not plain and see_also_as_links:
563
for item in see_also:
565
# topics doesn't have an independent section
566
# so don't create a real link
567
see_also_links.append(item)
569
# Use a Sphinx link for this entry
570
link_text = ":doc:`%s <%s-help>`" % (item, item)
571
see_also_links.append(link_text)
572
see_also = see_also_links
573
result += ':See also: '
574
result += ', '.join(see_also) + '\n'
576
# If this will be rendered as plain text, convert it
578
import bzrlib.help_topics
579
result = bzrlib.help_topics.help_as_plain_text(result)
583
def _get_help_parts(text):
584
"""Split help text into a summary and named sections.
586
:return: (summary,sections,order) where summary is the top line and
587
sections is a dictionary of the rest indexed by section name.
588
order is the order the section appear in the text.
589
A section starts with a heading line of the form ":xxx:".
590
Indented text on following lines is the section value.
591
All text found outside a named section is assigned to the
592
default section which is given the key of None.
594
def save_section(sections, order, label, section):
596
if sections.has_key(label):
597
sections[label] += '\n' + section
600
sections[label] = section
602
lines = text.rstrip().splitlines()
603
summary = lines.pop(0)
606
label,section = None,''
608
if line.startswith(':') and line.endswith(':') and len(line) > 2:
609
save_section(sections, order, label, section)
610
label,section = line[1:-1],''
611
elif (label is not None) and len(line) > 1 and not line[0].isspace():
612
save_section(sections, order, label, section)
613
label,section = None,line
389
print '%-8s %s%s' % (fc, fp, kindch)
616
section += '\n' + line
619
save_section(sections, order, label, section)
620
return summary, sections, order
622
def get_help_topic(self):
623
"""Return the commands help topic - its name."""
626
def get_see_also(self, additional_terms=None):
627
"""Return a list of help topics that are related to this command.
629
The list is derived from the content of the _see_also attribute. Any
630
duplicates are removed and the result is in lexical order.
631
:param additional_terms: Additional help topics to cross-reference.
632
:return: A list of help topics.
634
see_also = set(getattr(self, '_see_also', []))
636
see_also.update(additional_terms)
637
return sorted(see_also)
640
"""Return dict of valid options for this command.
642
Maps from long option name to option object."""
643
r = Option.STD_OPTIONS.copy()
645
for o in self.takes_options:
646
if isinstance(o, basestring):
647
o = option.Option.OPTIONS[o]
649
if o.name in std_names:
650
self.supported_std_options.append(o.name)
653
def _setup_outf(self):
654
"""Return a file linked to stdout, which has proper encoding."""
655
self.outf = ui.ui_factory.make_output_stream(
656
encoding_type=self.encoding_type)
658
def run_argv_aliases(self, argv, alias_argv=None):
659
"""Parse the command line and run with extra aliases in alias_argv."""
660
args, opts = parse_args(self, argv, alias_argv)
662
# Process the standard options
663
if 'help' in opts: # e.g. bzr add --help
664
sys.stdout.write(self.get_help_text())
666
if 'usage' in opts: # e.g. bzr add --usage
667
sys.stdout.write(self.get_help_text(verbose=False))
669
trace.set_verbosity_level(option._verbosity_level)
670
if 'verbose' in self.supported_std_options:
671
opts['verbose'] = trace.is_verbose()
672
elif opts.has_key('verbose'):
674
if 'quiet' in self.supported_std_options:
675
opts['quiet'] = trace.is_quiet()
676
elif opts.has_key('quiet'):
679
# mix arguments and options into one dictionary
680
cmdargs = _match_argform(self.name(), self.takes_args, args)
682
for k, v in opts.items():
683
cmdopts[k.replace('-', '_')] = v
685
all_cmd_args = cmdargs.copy()
686
all_cmd_args.update(cmdopts)
691
return self.run(**all_cmd_args)
693
# reset it, so that other commands run in the same process won't
695
trace.set_verbosity_level(0)
697
def _setup_run(self):
698
"""Wrap the defined run method on self with a cleanup.
700
This is called by __init__ to make the Command be able to be run
701
by just calling run(), as it could be before cleanups were added.
703
If a different form of cleanups are in use by your Command subclass,
704
you can override this method.
707
def run(*args, **kwargs):
708
self._operation = cleanup.OperationWithCleanups(class_run)
710
return self._operation.run_simple(*args, **kwargs)
715
@deprecated_method(deprecated_in((2, 2, 0)))
716
def run_direct(self, *args, **kwargs):
717
"""Deprecated thunk from bzrlib 2.1."""
718
return self.run(*args, **kwargs)
721
"""Actually run the command.
723
This is invoked with the options and arguments bound to
726
Return 0 or None if the command was successful, or a non-zero
727
shell error code if not. It's OK for this method to allow
728
an exception to raise up.
730
This method is automatically wrapped by Command.__init__ with a
731
cleanup operation, stored as self._operation. This can be used
732
via self.add_cleanup to perform automatic cleanups at the end of
735
The argument for run are assembled by introspection. So for instance,
736
if your command takes an argument files, you would declare::
738
def run(self, files=None):
741
raise NotImplementedError('no implementation of command %r'
745
"""Return help message for this class."""
746
from inspect import getdoc
747
if self.__doc__ is Command.__doc__:
752
return _unsquish_command_name(self.__class__.__name__)
754
def plugin_name(self):
755
"""Get the name of the plugin that provides this command.
757
:return: The name of the plugin or None if the command is builtin.
759
mod_parts = self.__module__.split('.')
760
if len(mod_parts) >= 3 and mod_parts[1] == 'plugins':
396
"""List unknown files"""
397
for f in Branch('.').unknowns():
401
def cmd_lookup_revision(revno):
405
bailout("usage: lookup-revision REVNO",
406
["REVNO is a non-negative revision number for this branch"])
408
print Branch('.').lookup_revision(revno) or NONE_STRING
412
def cmd_export(revno, dest):
413
"""Export past revision to destination directory."""
415
rh = b.lookup_revision(int(revno))
416
t = b.revision_tree(rh)
421
######################################################################
422
# internal/test commands
426
"""Print a newly-generated UUID."""
431
def cmd_local_time_offset():
432
print bzrlib.osutils.local_time_offset()
436
def cmd_commit(message, verbose=False):
437
Branch('.').commit(message, verbose=verbose)
441
"""Check consistency of the branch."""
445
def cmd_is(pred, *rest):
446
"""Test whether PREDICATE is true."""
448
cmd_handler = globals()['assert_' + pred.replace('-', '_')]
450
bailout("unknown predicate: %s" % quotefn(pred))
454
except BzrCheckError:
455
# by default we don't print the message so that this can
456
# be used from shell scripts without producing noise
461
print bzrlib.osutils.username()
464
def cmd_user_email():
465
print bzrlib.osutils.user_email()
468
def cmd_gen_revision_id():
470
print bzrlib.branch._gen_revision_id(time.time())
474
"""Run internal doctest suite"""
475
## -v, if present, is seen by doctest; the argument is just here
476
## so our parser doesn't complain
478
## TODO: --verbose option
480
import bzr, doctest, bzrlib.store
481
bzrlib.trace.verbose = False
483
doctest.testmod(bzrlib.store)
484
doctest.testmod(bzrlib.inventory)
485
doctest.testmod(bzrlib.branch)
486
doctest.testmod(bzrlib.osutils)
487
doctest.testmod(bzrlib.tree)
489
# more strenuous tests;
491
doctest.testmod(bzrlib.tests)
494
######################################################################
499
# TODO: Specific help for particular commands
504
print "bzr (bazaar-ng) %s" % __version__
506
print "http://bazaar-ng.org/"
509
"""bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and
510
you may use, modify and redistribute it under the terms of the GNU
511
General Public License version 2 or later."""
515
"""Statement of optimism."""
516
print "it sure does!"
520
######################################################################
524
# list of all available options; the rhs can be either None for an
525
# option that takes no argument, or a constructor function that checks
544
# List of options that apply to particular commands; commands not
548
'commit': ['message', 'verbose'],
549
'diff': ['revision'],
550
'inventory': ['revision'],
551
'log': ['show-ids', 'timezone'],
552
'ls': ['revision', 'verbose'],
553
'remove': ['verbose'],
563
'file-id': ['filename'],
564
'get-file-text': ['text_id'],
565
'get-inventory': ['inventory_id'],
566
'get-revision': ['revision_id'],
567
'get-revision-inventory': ['revision_id'],
569
'lookup-revision': ['revno'],
570
'export': ['revno', 'dest'],
576
def parse_args(argv):
766
class CommandHooks(Hooks):
767
"""Hooks related to Command object creation/enumeration."""
770
"""Create the default hooks.
772
These are all empty initially, because by default nothing should get
776
self.create_hook(HookPoint('extend_command',
777
"Called after creating a command object to allow modifications "
778
"such as adding or removing options, docs etc. Called with the "
779
"new bzrlib.commands.Command object.", (1, 13), None))
780
self.create_hook(HookPoint('get_command',
781
"Called when creating a single command. Called with "
782
"(cmd_or_None, command_name). get_command should either return "
783
"the cmd_or_None parameter, or a replacement Command object that "
784
"should be used for the command. Note that the Command.hooks "
785
"hooks are core infrastructure. Many users will prefer to use "
786
"bzrlib.commands.register_command or plugin_cmds.register_lazy.",
788
self.create_hook(HookPoint('get_missing_command',
789
"Called when creating a single command if no command could be "
790
"found. Called with (command_name). get_missing_command should "
791
"either return None, or a Command object to be used for the "
792
"command.", (1, 17), None))
793
self.create_hook(HookPoint('list_commands',
794
"Called when enumerating commands. Called with a set of "
795
"cmd_name strings for all the commands found so far. This set "
796
" is safe to mutate - e.g. to remove a command. "
797
"list_commands should return the updated set of command names.",
800
Command.hooks = CommandHooks()
803
def parse_args(command, argv, alias_argv=None):
577
804
"""Parse command line.
579
806
Arguments and options are parsed at this level before being passed
580
807
down to specific command handlers. This routine knows, from a
581
808
lookup table, something about the available options, what optargs
582
809
they take, and which commands will accept them.
584
>>> parse_args('--help'.split())
586
>>> parse_args('--version'.split())
587
([], {'version': True})
588
>>> parse_args('status --all'.split())
589
(['status'], {'all': True})
590
>>> parse_args('commit --message=biter'.split())
591
(['commit'], {'message': u'biter'})
596
# TODO: Maybe handle '--' to end options?
603
mutter(" got option %r" % a)
605
optname, optarg = a[2:].split('=', 1)
608
if optname not in OPTIONS:
609
bailout('unknown long option %r' % a)
612
if shortopt not in SHORT_OPTIONS:
613
bailout('unknown short option %r' % a)
614
optname = SHORT_OPTIONS[shortopt]
617
# XXX: Do we ever want to support this, e.g. for -r?
618
bailout('repeated option %r' % a)
620
optargfn = OPTIONS[optname]
624
bailout('option %r needs an argument' % a)
627
opts[optname] = optargfn(optarg)
628
mutter(" option argument %r" % opts[optname])
631
bailout('option %r takes no argument' % optname)
811
# TODO: make it a method of the Command?
812
parser = option.get_optparser(command.options())
813
if alias_argv is not None:
814
args = alias_argv + argv
818
# for python 2.5 and later, optparse raises this exception if a non-ascii
819
# option name is given. See http://bugs.python.org/issue2931
821
options, args = parser.parse_args(args)
822
except UnicodeEncodeError,e:
823
raise errors.BzrCommandError('Only ASCII permitted in option names')
825
opts = dict([(k, v) for k, v in options.__dict__.iteritems() if
826
v is not option.OptionParser.DEFAULT_VALUE])
636
827
return args, opts
640
def _match_args(cmd, args):
641
"""Check non-option arguments match required pattern.
643
>>> _match_args('status', ['asdasdsadasd'])
644
Traceback (most recent call last):
646
BzrError: ("extra arguments to command status: ['asdasdsadasd']", [])
647
>>> _match_args('add', ['asdasdsadasd'])
648
{'file_list': ['asdasdsadasd']}
649
>>> _match_args('add', 'abc def gj'.split())
650
{'file_list': ['abc', 'def', 'gj']}
652
# match argument pattern
653
argform = cmd_args.get(cmd, [])
830
def _match_argform(cmd, takes_args, args):
655
# TODO: Need a way to express 'cp SRC... DEST', where it matches
833
# step through args and takes_args, allowing appropriate 0-many matches
834
for ap in takes_args:
659
835
argname = ap[:-1]
660
836
if ap[-1] == '?':
838
argdict[argname] = args.pop(0)
839
elif ap[-1] == '*': # all remaining arguments
841
argdict[argname + '_list'] = args[:]
844
argdict[argname + '_list'] = None
664
845
elif ap[-1] == '+':
666
bailout("command %r needs one or more %s"
667
% (cmd, argname.upper()))
847
raise errors.BzrCommandError("command %r needs one or more %s"
848
% (cmd, argname.upper()))
669
850
argdict[argname + '_list'] = args[:]
852
elif ap[-1] == '$': # all but one
854
raise errors.BzrCommandError("command %r needs one or more %s"
855
% (cmd, argname.upper()))
856
argdict[argname + '_list'] = args[:-1]
672
859
# just a plain arg
675
bailout("command %r requires argument %s"
676
% (cmd, argname.upper()))
862
raise errors.BzrCommandError("command %r requires argument %s"
863
% (cmd, argname.upper()))
678
865
argdict[argname] = args.pop(0)
681
bailout("extra arguments to command %s: %r"
868
raise errors.BzrCommandError("extra argument to command %s: %s"
873
def apply_coveraged(dirname, the_callable, *args, **kwargs):
874
# Cannot use "import trace", as that would import bzrlib.trace instead of
875
# the standard library's trace.
876
trace = __import__('trace')
878
tracer = trace.Trace(count=1, trace=0)
879
sys.settrace(tracer.globaltrace)
880
threading.settrace(tracer.globaltrace)
883
return exception_to_return_code(the_callable, *args, **kwargs)
886
results = tracer.results()
887
results.write_results(show_missing=1, summary=False,
891
def apply_profiled(the_callable, *args, **kwargs):
895
pffileno, pfname = tempfile.mkstemp()
897
prof = hotshot.Profile(pfname)
899
ret = prof.runcall(exception_to_return_code, the_callable, *args,
903
stats = hotshot.stats.load(pfname)
905
stats.sort_stats('cum') # 'time'
906
## XXX: Might like to write to stderr or the trace file instead but
907
## print_stats seems hardcoded to stdout
908
stats.print_stats(20)
915
def exception_to_return_code(the_callable, *args, **kwargs):
916
"""UI level helper for profiling and coverage.
918
This transforms exceptions into a return value of 3. As such its only
919
relevant to the UI layer, and should never be called where catching
920
exceptions may be desirable.
923
return the_callable(*args, **kwargs)
924
except (KeyboardInterrupt, Exception), e:
925
# used to handle AssertionError and KeyboardInterrupt
926
# specially here, but hopefully they're handled ok by the logger now
927
exc_info = sys.exc_info()
928
exitcode = trace.report_exception(exc_info, sys.stderr)
929
if os.environ.get('BZR_PDB'):
930
print '**** entering debugger'
933
if sys.version_info[:2] < (2, 6):
935
# pdb.post_mortem(tb)
936
# but because pdb.post_mortem gives bad results for tracebacks
937
# from inside generators, we do it manually.
938
# (http://bugs.python.org/issue4150, fixed in Python 2.6)
940
# Setup pdb on the traceback
943
p.setup(tb.tb_frame, tb)
944
# Point the debugger at the deepest frame of the stack
945
p.curindex = len(p.stack) - 1
946
p.curframe = p.stack[p.curindex][0]
947
# Start the pdb prompt.
948
p.print_stack_entry(p.stack[p.curindex])
956
def apply_lsprofiled(filename, the_callable, *args, **kwargs):
957
from bzrlib.lsprof import profile
958
ret, stats = profile(exception_to_return_code, the_callable, *args, **kwargs)
964
trace.note('Profile data written to "%s".', filename)
968
@deprecated_function(deprecated_in((2, 2, 0)))
969
def shlex_split_unicode(unsplit):
970
return cmdline.split(unsplit)
973
def get_alias(cmd, config=None):
974
"""Return an expanded alias, or None if no alias exists.
977
Command to be checked for an alias.
979
Used to specify an alternative config to use,
980
which is especially useful for testing.
981
If it is unspecified, the global config will be used.
985
config = bzrlib.config.GlobalConfig()
986
alias = config.get_alias(cmd)
988
return cmdline.split(alias)
992
def run_bzr(argv, load_plugins=load_plugins, disable_plugins=disable_plugins):
689
993
"""Execute a command.
691
This is similar to main(), but without all the trappings for
692
logging and error handling.
695
args, opts = parse_args(argv[1:])
697
# TODO: pass down other arguments in case they asked for
698
# help on a command name?
701
elif 'version' in opts:
706
log_error('usage: bzr COMMAND\n')
707
log_error(' try "bzr help"\n')
711
cmd_handler = globals()['cmd_' + cmd.replace('-', '_')]
713
bailout("unknown command " + `cmd`)
715
# TODO: special --profile option to turn on the Python profiler
717
# check options are reasonable
718
allowed = cmd_options.get(cmd, [])
720
if oname not in allowed:
721
bailout("option %r is not allowed for command %r"
724
cmdargs = _match_args(cmd, args)
727
ret = cmd_handler(**cmdargs) or 0
732
## TODO: Handle command-line options; probably know what options are valid for
735
## TODO: If the arguments are wrong, give a usage message rather
736
## than just a backtrace.
739
# TODO: Lift into separate function in trace.py
740
# TODO: Also show contents of /etc/lsb-release, if it can be parsed.
741
# Perhaps that should eventually go into the platform library?
742
# TODO: If the file doesn't exist, add a note describing it.
743
t = bzrlib.trace._tracefile
744
t.write('-' * 60 + '\n')
745
t.write('bzr invoked at %s\n' % format_date(time.time()))
746
t.write(' by %s on %s\n' % (bzrlib.osutils.username(), socket.getfqdn()))
747
t.write(' arguments: %r\n' % argv)
749
starttime = os.times()[4]
752
t.write(' platform: %s\n' % platform.platform())
753
t.write(' python: %s\n' % platform.python_version())
758
mutter("finished, %.3fu/%.3fs cpu, %.3fu/%.3fs cum"
760
mutter(" %.3f elapsed" % (times[4] - starttime))
764
log_error('bzr: error: ' + e.args[0] + '\n')
767
log_error(' ' + h + '\n')
995
:param argv: The command-line arguments, without the program name from
996
argv[0] These should already be decoded. All library/test code calling
997
run_bzr should be passing valid strings (don't need decoding).
998
:param load_plugins: What function to call when triggering plugin loading.
999
This function should take no arguments and cause all plugins to be
1001
:param disable_plugins: What function to call when disabling plugin
1002
loading. This function should take no arguments and cause all plugin
1003
loading to be prohibited (so that code paths in your application that
1004
know about some plugins possibly being present will fail to import
1005
those plugins even if they are installed.)
1006
:return: Returns a command exit code or raises an exception.
1008
Special master options: these must come before the command because
1009
they control how the command is interpreted.
1012
Do not load plugin modules at all
1015
Do not allow aliases
1018
Only use builtin commands. (Plugins are still allowed to change
1022
Run under the Python hotshot profiler.
1025
Run under the Python lsprof profiler.
1028
Generate line coverage report in the specified directory.
1031
Specify the number of processes that can be run concurrently (selftest).
1033
trace.mutter("bazaar version: " + bzrlib.__version__)
1035
trace.mutter("bzr arguments: %r", argv)
1037
opt_lsprof = opt_profile = opt_no_plugins = opt_builtin = \
1038
opt_no_aliases = False
1039
opt_lsprof_file = opt_coverage_dir = None
1041
# --no-plugins is handled specially at a very early stage. We need
1042
# to load plugins before doing other command parsing so that they
1043
# can override commands, but this needs to happen first.
1047
while i < len(argv):
1049
if a == '--profile':
1051
elif a == '--lsprof':
1053
elif a == '--lsprof-file':
1055
opt_lsprof_file = argv[i + 1]
1057
elif a == '--no-plugins':
1058
opt_no_plugins = True
1059
elif a == '--no-aliases':
1060
opt_no_aliases = True
1061
elif a == '--builtin':
1063
elif a == '--concurrency':
1064
os.environ['BZR_CONCURRENCY'] = argv[i + 1]
1066
elif a == '--coverage':
1067
opt_coverage_dir = argv[i + 1]
1069
elif a == '--profile-imports':
1070
pass # already handled in startup script Bug #588277
1071
elif a.startswith('-D'):
1072
debug.debug_flags.add(a[2:])
1077
debug.set_debug_flags_from_config()
1079
if not opt_no_plugins:
1086
get_cmd_object('help').run_argv_aliases([])
1089
if argv[0] == '--version':
1090
get_cmd_object('version').run_argv_aliases([])
1095
if not opt_no_aliases:
1096
alias_argv = get_alias(argv[0])
1098
argv[0] = alias_argv.pop(0)
1101
cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
1102
run = cmd_obj.run_argv_aliases
1103
run_argv = [argv, alias_argv]
1106
# We can be called recursively (tests for example), but we don't want
1107
# the verbosity level to propagate.
1108
saved_verbosity_level = option._verbosity_level
1109
option._verbosity_level = 0
1111
if opt_coverage_dir:
1113
'--coverage ignored, because --lsprof is in use.')
1114
ret = apply_lsprofiled(opt_lsprof_file, run, *run_argv)
1116
if opt_coverage_dir:
1118
'--coverage ignored, because --profile is in use.')
1119
ret = apply_profiled(run, *run_argv)
1120
elif opt_coverage_dir:
1121
ret = apply_coveraged(opt_coverage_dir, run, *run_argv)
1123
ret = run(*run_argv)
1126
# reset, in case we may do other commands later within the same
1127
# process. Commands that want to execute sub-commands must propagate
1128
# --verbose in their own way.
1129
if 'memory' in debug.debug_flags:
1130
trace.debug_memory('Process status after command:', short=False)
1131
option._verbosity_level = saved_verbosity_level
1134
def display_command(func):
1135
"""Decorator that suppresses pipe/interrupt errors."""
1136
def ignore_pipe(*args, **kwargs):
1138
result = func(*args, **kwargs)
1142
if getattr(e, 'errno', None) is None:
1144
if e.errno != errno.EPIPE:
1145
# Win32 raises IOError with errno=0 on a broken pipe
1146
if sys.platform != 'win32' or (e.errno not in (0, errno.EINVAL)):
1149
except KeyboardInterrupt:
1154
def install_bzr_command_hooks():
1155
"""Install the hooks to supply bzr's own commands."""
1156
if _list_bzr_commands in Command.hooks["list_commands"]:
1158
Command.hooks.install_named_hook("list_commands", _list_bzr_commands,
1160
Command.hooks.install_named_hook("get_command", _get_bzr_command,
1162
Command.hooks.install_named_hook("get_command", _get_plugin_command,
1163
"bzr plugin commands")
1164
Command.hooks.install_named_hook("get_command", _get_external_command,
1165
"bzr external command lookup")
1166
Command.hooks.install_named_hook("get_missing_command", _try_plugin_provider,
1167
"bzr plugin-provider-db check")
1171
def _specified_or_unicode_argv(argv):
1172
# For internal or testing use, argv can be passed. Otherwise, get it from
1173
# the process arguments in a unicode-safe way.
1175
return osutils.get_unicode_argv()
1179
# ensure all arguments are unicode strings
1181
if isinstance(a, unicode):
1184
new_argv.append(a.decode('ascii'))
1185
except UnicodeDecodeError:
1186
raise errors.BzrError("argv should be list of unicode strings.")
1190
def main(argv=None):
1191
"""Main entry point of command-line interface.
1193
Typically `bzrlib.initialize` should be called first.
1195
:param argv: list of unicode command-line arguments similar to sys.argv.
1196
argv[0] is script name usually, it will be ignored.
1197
Don't pass here sys.argv because this list contains plain strings
1198
and not unicode; pass None instead.
1200
:return: exit code of bzr command.
1202
argv = _specified_or_unicode_argv(argv)
1203
_register_builtin_commands()
1204
ret = run_bzr_catch_errors(argv)
1205
bzrlib.ui.ui_factory.log_transport_activity(
1206
display=('bytes' in debug.debug_flags))
1207
trace.mutter("return code %d", ret)
1211
def run_bzr_catch_errors(argv):
1212
"""Run a bzr command with parameters as described by argv.
1214
This function assumed that that UI layer is setup, that symbol deprecations
1215
are already applied, and that unicode decoding has already been performed on argv.
1217
# done here so that they're covered for every test run
1218
install_bzr_command_hooks()
1219
return exception_to_return_code(run_bzr, argv)
1222
def run_bzr_catch_user_errors(argv):
1223
"""Run bzr and report user errors, but let internal errors propagate.
1225
This is used for the test suite, and might be useful for other programs
1226
that want to wrap the commandline interface.
1228
# done here so that they're covered for every test run
1229
install_bzr_command_hooks()
1231
return run_bzr(argv)
769
1232
except Exception, e:
770
log_error('bzr: exception: %s\n' % e)
771
log_error(' see .bzr.log for details\n')
772
traceback.print_exc(None, bzrlib.trace._tracefile)
773
traceback.print_exc(None, sys.stderr)
776
# TODO: Maybe nicer handling of IOError?
780
if __name__ == '__main__':
781
sys.exit(main(sys.argv))
783
##profile.run('main(sys.argv)')
1233
if (isinstance(e, (OSError, IOError))
1234
or not getattr(e, 'internal_error', True)):
1235
trace.report_exception(sys.exc_info(), sys.stderr)
1241
class HelpCommandIndex(object):
1242
"""A index for bzr help that returns commands."""
1245
self.prefix = 'commands/'
1247
def get_topics(self, topic):
1248
"""Search for topic amongst commands.
1250
:param topic: A topic to search for.
1251
:return: A list which is either empty or contains a single
1254
if topic and topic.startswith(self.prefix):
1255
topic = topic[len(self.prefix):]
1257
cmd = _get_cmd_object(topic, check_missing=False)
1264
class Provider(object):
1265
'''Generic class to be overriden by plugins'''
1267
def plugin_for_command(self, cmd_name):
1268
'''Takes a command and returns the information for that plugin
1270
:return: A dictionary with all the available information
1271
for the requested plugin
1273
raise NotImplementedError
1276
class ProvidersRegistry(registry.Registry):
1277
'''This registry exists to allow other providers to exist'''
1280
for key, provider in self.iteritems():
1283
command_providers_registry = ProvidersRegistry()
added
removed
bzrlib/commands.py
