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- Committer: mbp at sourcefrog
- Date: 2005-03-19 08:19:38 UTC
- Revision ID: mbp@sourcefrog.net-20050319081938-596d89f99a644569
use "/usr/bin/env python" for shebang"
- files added:
- .bzrignore
- bzrlib
- doc
- notes
- files removed:
- .bzrignore
- notes
- tests
added
removed
bzrlib/commands.py
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#! /usr/bin/python
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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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# 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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bzr help
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Show summary help screen
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bzr version
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Show software version/licence/non-warranty.
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bzr init
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Start versioning the current directory
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bzr add FILE...
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Make files versioned.
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bzr log
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Show revision history.
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bzr diff
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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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bzr status
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Show summary of pending changes.
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bzr remove FILE...
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Make a file not versioned.
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"""
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# not currently working:
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# bzr info
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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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__version__ = '0.0.0'
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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 os import path
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from sets import Set
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from pprint import pprint
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from stat import *
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from glob import glob
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import bzrlib
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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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format_date
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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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EMPTY = 'empty'
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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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## directory.
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## TODO: rename command, needed soon: check destination doesn't exist
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## either in working copy or tree; move working copy; update
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## inventory; write out
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## TODO: move command; check destination is a directory and will not
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## clash; move it.
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## TODO: command to show renames, one per line, as to->from
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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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"""
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Branch('.').show_status(show_all=all)
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######################################################################
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# examining history
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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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# commands
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def cmd_revno():
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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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"""
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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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b = Branch('.')
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if revision == None:
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inv = b.read_working_inventory()
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else:
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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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def cmd_info():
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b = Branch('.')
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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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if n == 1:
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return base
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elif pl is not None:
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return pl
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else:
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return 's'
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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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fs = st_tup[0]
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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
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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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):
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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
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print 'branch history:'
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history = b.revision_history()
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revno = len(history)
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print ' %5d revision%s' % (revno, plural(revno))
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committers = Set()
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for rev in history:
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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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if revno > 0:
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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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firstrev.timezone)
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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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lastrev.timezone)
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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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if i is None:
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bailout("%s is not a versioned file" % filename)
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else:
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print i
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def cmd_find_filename(fileid):
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n = find_filename(fileid)
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if n is None:
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bailout("%s is not a live file id" % fileid)
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else:
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print n
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def cmd_revision_history():
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for patchid in Branch('.').revision_history():
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print patchid
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def cmd_init():
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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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# both?
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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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and diff them.
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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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"""
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b = Branch('.')
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if revision == None:
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old_tree = b.basis_tree()
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else:
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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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old_label = ''
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new_label = ''
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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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d = None
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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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idlabel = ''
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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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print
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if file_state in ['.', '?', 'I']:
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continue
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elif file_state == 'A':
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print '*** added %s %r' % (kind, new_name)
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if kind == 'file':
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diffit([],
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new_tree.get_file(fid).readlines(),
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fromfile=DEVNULL,
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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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if kind == 'file':
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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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tofile=DEVNULL)
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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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if kind == 'file':
362
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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else:
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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.
375
"""
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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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382
:todo: Take a revision or remote path and list that tree instead.
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"""
384
b = Branch('.')
385
if revision == None:
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tree = b.working_tree()
387
else:
388
tree = b.revision_tree(b.lookup_revision(revision))
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for fp, fc, kind, fid in tree.list_files():
391
if verbose:
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if kind == 'directory':
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kindch = '/'
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elif kind == 'file':
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kindch = ''
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else:
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kindch = '???'
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print '%-8s %s%s' % (fc, fp, kindch)
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else:
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print fp
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def cmd_unknowns():
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"""List unknown files"""
407
for f in Branch('.').unknowns():
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print quotefn(f)
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def cmd_lookup_revision(revno):
412
try:
413
revno = int(revno)
414
except ValueError:
415
bailout("usage: lookup-revision REVNO",
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["REVNO is a non-negative revision number for this branch"])
417
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print Branch('.').lookup_revision(revno) or NONE_STRING
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def cmd_export(revno, dest):
423
"""Export past revision to destination directory."""
424
b = Branch('.')
425
rh = b.lookup_revision(int(revno))
426
t = b.revision_tree(rh)
427
t.export(dest)
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######################################################################
432
# internal/test commands
433
434
435
def cmd_uuid():
436
"""Print a newly-generated UUID."""
437
print uuid()
438
439
440
441
def cmd_local_time_offset():
442
print bzrlib.osutils.local_time_offset()
443
444
445
446
def cmd_commit(message, verbose=False):
447
Branch('.').commit(message, verbose=verbose)
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449
450
def cmd_check():
451
"""Check consistency of the branch."""
452
check()
453
454
455
def cmd_is(pred, *rest):
456
"""Test whether PREDICATE is true."""
457
try:
458
cmd_handler = globals()['assert_' + pred.replace('-', '_')]
459
except KeyError:
460
bailout("unknown predicate: %s" % quotefn(pred))
461
462
try:
463
cmd_handler(*rest)
464
except BzrCheckError:
465
# by default we don't print the message so that this can
466
# be used from shell scripts without producing noise
467
sys.exit(1)
468
469
470
def cmd_username():
471
print bzrlib.osutils.username()
472
473
474
def cmd_user_email():
475
print bzrlib.osutils.user_email()
476
477
478
def cmd_gen_revision_id():
479
import time
480
print bzrlib.branch._gen_revision_id(time.time())
481
482
483
def cmd_doctest():
484
"""Run internal doctest suite"""
485
## -v, if present, is seen by doctest; the argument is just here
486
## so our parser doesn't complain
487
488
## TODO: --verbose option
489
490
import bzr, doctest, bzrlib.store
491
bzrlib.trace.verbose = False
492
doctest.testmod(bzr)
493
doctest.testmod(bzrlib.store)
494
doctest.testmod(bzrlib.inventory)
495
doctest.testmod(bzrlib.branch)
496
doctest.testmod(bzrlib.osutils)
497
doctest.testmod(bzrlib.tree)
498
499
# more strenuous tests;
500
import bzrlib.tests
501
doctest.testmod(bzrlib.tests)
502
503
504
######################################################################
505
# help
506
507
508
def cmd_help():
509
# TODO: Specific help for particular commands
510
print __doc__
511
512
513
def cmd_version():
514
print "bzr (bazaar-ng) %s" % __version__
515
print __copyright__
516
print "http://bazaar-ng.org/"
517
print
518
print \
519
"""bzr comes with ABSOLUTELY NO WARRANTY. bzr is free software, and
520
you may use, modify and redistribute it under the terms of the GNU
521
General Public License version 2 or later."""
522
523
524
def cmd_rocks():
525
"""Statement of optimism."""
526
print "it sure does!"
527
528
529
530
######################################################################
531
# main routine
532
533
534
# list of all available options; the rhs can be either None for an
535
# option that takes no argument, or a constructor function that checks
536
# the type.
537
OPTIONS = {
538
'all': None,
539
'help': None,
540
'message': unicode,
541
'revision': int,
542
'show-ids': None,
543
'timezone': str,
544
'verbose': None,
545
'version': None,
546
}
547
548
SHORT_OPTIONS = {
549
'm': 'message',
550
'r': 'revision',
551
'v': 'verbose',
552
}
553
554
# List of options that apply to particular commands; commands not
555
# listed take none.
556
cmd_options = {
557
'add': ['verbose'],
558
'commit': ['message', 'verbose'],
559
'diff': ['revision'],
560
'inventory': ['revision'],
561
'log': ['show-ids', 'timezone'],
562
'ls': ['revision', 'verbose'],
563
'remove': ['verbose'],
564
'status': ['all'],
565
}
566
567
568
cmd_args = {
569
'init': [],
570
'add': ['file+'],
571
'commit': [],
572
'diff': [],
573
'file-id': ['filename'],
574
'get-file-text': ['text_id'],
575
'get-inventory': ['inventory_id'],
576
'get-revision': ['revision_id'],
577
'get-revision-inventory': ['revision_id'],
578
'log': [],
579
'lookup-revision': ['revno'],
580
'export': ['revno', 'dest'],
581
'remove': ['file+'],
582
'status': [],
583
}
584
585
586
def parse_args(argv):
587
"""Parse command line.
588
589
Arguments and options are parsed at this level before being passed
590
down to specific command handlers. This routine knows, from a
591
lookup table, something about the available options, what optargs
592
they take, and which commands will accept them.
593
594
>>> parse_args('--help'.split())
595
([], {'help': True})
596
>>> parse_args('--version'.split())
597
([], {'version': True})
598
>>> parse_args('status --all'.split())
599
(['status'], {'all': True})
600
>>> parse_args('commit --message=biter'.split())
601
(['commit'], {'message': u'biter'})
602
"""
603
args = []
604
opts = {}
605
606
# TODO: Maybe handle '--' to end options?
607
608
while argv:
609
a = argv.pop(0)
610
if a[0] == '-':
611
optarg = None
612
if a[1] == '-':
613
mutter(" got option %r" % a)
614
if '=' in a:
615
optname, optarg = a[2:].split('=', 1)
616
else:
617
optname = a[2:]
618
if optname not in OPTIONS:
619
bailout('unknown long option %r' % a)
620
else:
621
shortopt = a[1:]
622
if shortopt not in SHORT_OPTIONS:
623
bailout('unknown short option %r' % a)
624
optname = SHORT_OPTIONS[shortopt]
625
626
if optname in opts:
627
# XXX: Do we ever want to support this, e.g. for -r?
628
bailout('repeated option %r' % a)
629
630
optargfn = OPTIONS[optname]
631
if optargfn:
632
if optarg == None:
633
if not argv:
634
bailout('option %r needs an argument' % a)
635
else:
636
optarg = argv.pop(0)
637
opts[optname] = optargfn(optarg)
638
mutter(" option argument %r" % opts[optname])
639
else:
640
if optarg != None:
641
bailout('option %r takes no argument' % optname)
642
opts[optname] = True
643
else:
644
args.append(a)
645
646
return args, opts
647
648
649
650
def _match_args(cmd, args):
651
"""Check non-option arguments match required pattern.
652
653
>>> _match_args('status', ['asdasdsadasd'])
654
Traceback (most recent call last):
655
...
656
BzrError: ("extra arguments to command status: ['asdasdsadasd']", [])
657
>>> _match_args('add', ['asdasdsadasd'])
658
{'file_list': ['asdasdsadasd']}
659
>>> _match_args('add', 'abc def gj'.split())
660
{'file_list': ['abc', 'def', 'gj']}
661
"""
662
# match argument pattern
663
argform = cmd_args.get(cmd, [])
664
argdict = {}
665
# TODO: Need a way to express 'cp SRC... DEST', where it matches
666
# all but one.
667
668
for ap in argform:
669
argname = ap[:-1]
670
if ap[-1] == '?':
671
assert 0
672
elif ap[-1] == '*':
673
assert 0
674
elif ap[-1] == '+':
675
if not args:
676
bailout("command %r needs one or more %s"
677
% (cmd, argname.upper()))
678
else:
679
argdict[argname + '_list'] = args[:]
680
args = []
681
else:
682
# just a plain arg
683
argname = ap
684
if not args:
685
bailout("command %r requires argument %s"
686
% (cmd, argname.upper()))
687
else:
688
argdict[argname] = args.pop(0)
689
690
if args:
691
bailout("extra arguments to command %s: %r"
692
% (cmd, args))
693
694
return argdict
695
696
697
698
def run_bzr(argv):
699
"""Execute a command.
700
701
This is similar to main(), but without all the trappings for
702
logging and error handling.
703
"""
704
try:
705
args, opts = parse_args(argv[1:])
706
if 'help' in opts:
707
# TODO: pass down other arguments in case they asked for
708
# help on a command name?
709
cmd_help()
710
return 0
711
elif 'version' in opts:
712
cmd_version()
713
return 0
714
cmd = args.pop(0)
715
except IndexError:
716
log_error('usage: bzr COMMAND\n')
717
log_error(' try "bzr help"\n')
718
return 1
719
720
try:
721
cmd_handler = globals()['cmd_' + cmd.replace('-', '_')]
722
except KeyError:
723
bailout("unknown command " + `cmd`)
724
725
# TODO: special --profile option to turn on the Python profiler
726
727
# check options are reasonable
728
allowed = cmd_options.get(cmd, [])
729
for oname in opts:
730
if oname not in allowed:
731
bailout("option %r is not allowed for command %r"
732
% (oname, cmd))
733
734
cmdargs = _match_args(cmd, args)
735
cmdargs.update(opts)
736
737
ret = cmd_handler(**cmdargs) or 0
738
739
740
741
def main(argv):
742
## TODO: Handle command-line options; probably know what options are valid for
743
## each command
744
745
## TODO: If the arguments are wrong, give a usage message rather
746
## than just a backtrace.
747
748
try:
749
# TODO: Lift into separate function in trace.py
750
# TODO: Also show contents of /etc/lsb-release, if it can be parsed.
751
# Perhaps that should eventually go into the platform library?
752
# TODO: If the file doesn't exist, add a note describing it.
753
t = bzrlib.trace._tracefile
754
t.write('-' * 60 + '\n')
755
t.write('bzr invoked at %s\n' % format_date(time.time()))
756
t.write(' by %s on %s\n' % (bzrlib.osutils.username(), socket.getfqdn()))
757
t.write(' arguments: %r\n' % argv)
758
759
starttime = os.times()[4]
760
761
import platform
762
t.write(' platform: %s\n' % platform.platform())
763
t.write(' python: %s\n' % platform.python_version())
764
765
ret = run_bzr(argv)
766
767
times = os.times()
768
mutter("finished, %.3fu/%.3fs cpu, %.3fu/%.3fs cum"
769
% times[:4])
770
mutter(" %.3f elapsed" % (times[4] - starttime))
771
772
return ret
773
except BzrError, e:
774
log_error('bzr: error: ' + e.args[0] + '\n')
775
if len(e.args) > 1:
776
for h in e.args[1]:
777
log_error(' ' + h + '\n')
778
return 1
779
except Exception, e:
780
log_error('bzr: exception: %s\n' % e)
781
log_error(' see .bzr.log for details\n')
782
traceback.print_exc(None, bzrlib.trace._tracefile)
783
traceback.print_exc(None, sys.stderr)
784
return 1
785
786
# TODO: Maybe nicer handling of IOError?
787
788
789
790
if __name__ == '__main__':
791
sys.exit(main(sys.argv))
792
##import profile
793
##profile.run('main(sys.argv)')
794
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0