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# Copyright (C) 2005, 2006, 2007 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys
from bzrlib import (
delta as _mod_delta,
log,
osutils,
tree,
tsort,
revision as _mod_revision,
)
from bzrlib.diff import _raise_if_nonexistent
import bzrlib.errors as errors
from bzrlib.osutils import is_inside_any
from bzrlib.symbol_versioning import (deprecated_function,
)
from bzrlib.trace import warning
# TODO: when showing single-line logs, truncate to the width of the terminal
# if known, but only if really going to the terminal (not into a file)
def show_tree_status(wt, show_unchanged=None,
specific_files=None,
show_ids=False,
to_file=None,
show_pending=True,
revision=None,
short=False,
versioned=False):
"""Display summary of changes.
By default this compares the working tree to a previous revision.
If the revision argument is given, summarizes changes between the
working tree and another, or between two revisions.
The result is written out as Unicode and to_file should be able
to encode that.
If showing the status of a working tree, extra information is included
about unknown files, conflicts, and pending merges.
:param show_unchanged: Deprecated parameter. If set, includes unchanged
files.
:param specific_files: If set, a list of filenames whose status should be
shown. It is an error to give a filename that is not in the working
tree, or in the working inventory or in the basis inventory.
:param show_ids: If set, includes each file's id.
:param to_file: If set, write to this file (default stdout.)
:param show_pending: If set, write pending merges.
:param revision: If None, compare latest revision with working tree
If not None, it must be a RevisionSpec list.
If one revision, compare with working tree.
If two revisions, show status between first and second.
:param short: If True, gives short SVN-style status lines.
:param versioned: If True, only shows versioned files.
"""
if show_unchanged is not None:
warn("show_tree_status with show_unchanged has been deprecated "
"since bzrlib 0.9", DeprecationWarning, stacklevel=2)
if to_file is None:
to_file = sys.stdout
wt.lock_read()
try:
new_is_working_tree = True
if revision is None:
if wt.last_revision() != wt.branch.last_revision():
warning("working tree is out of date, run 'bzr update'")
new = wt
old = new.basis_tree()
elif len(revision) > 0:
try:
rev_id = revision[0].as_revision_id(wt.branch)
old = wt.branch.repository.revision_tree(rev_id)
except errors.NoSuchRevision, e:
raise errors.BzrCommandError(str(e))
if (len(revision) > 1) and (revision[1].spec is not None):
try:
rev_id = revision[1].as_revision_id(wt.branch)
new = wt.branch.repository.revision_tree(rev_id)
new_is_working_tree = False
except errors.NoSuchRevision, e:
raise errors.BzrCommandError(str(e))
else:
new = wt
old.lock_read()
new.lock_read()
try:
_raise_if_nonexistent(specific_files, old, new)
want_unversioned = not versioned
if short:
changes = new.iter_changes(old, show_unchanged, specific_files,
require_versioned=False, want_unversioned=want_unversioned)
reporter = _mod_delta._ChangeReporter(output_file=to_file,
unversioned_filter=new.is_ignored)
_mod_delta.report_changes(changes, reporter)
else:
delta = new.changes_from(old, want_unchanged=show_unchanged,
specific_files=specific_files,
want_unversioned=want_unversioned)
# filter out unknown files. We may want a tree method for
# this
delta.unversioned = [unversioned for unversioned in
delta.unversioned if not new.is_ignored(unversioned[0])]
delta.show(to_file,
show_ids=show_ids,
show_unchanged=show_unchanged,
short_status=False)
# show the new conflicts only for now. XXX: get them from the
# delta.
conflicts = new.conflicts()
if specific_files is not None:
conflicts = conflicts.select_conflicts(new, specific_files,
ignore_misses=True, recurse=True)[1]
if len(conflicts) > 0 and not short:
to_file.write("conflicts:\n")
for conflict in conflicts:
if short:
prefix = 'C '
else:
prefix = ' '
to_file.write("%s %s\n" % (prefix, conflict))
if (new_is_working_tree and show_pending):
show_pending_merges(new, to_file, short)
finally:
old.unlock()
new.unlock()
finally:
wt.unlock()
def _get_sorted_revisions(tip_revision, revision_ids, parent_map):
"""Get an iterator which will return the revisions in merge sorted order.
This will build up a list of all nodes, such that only nodes in the list
are referenced. It then uses MergeSorter to return them in 'merge-sorted'
order.
:param revision_ids: A set of revision_ids
:param parent_map: The parent information for each node. Revisions which
are considered ghosts should not be present in the map.
:return: iterator from MergeSorter.iter_topo_order()
"""
# MergeSorter requires that all nodes be present in the graph, so get rid
# of any references pointing outside of this graph.
parent_graph = {}
for revision_id in revision_ids:
if revision_id not in parent_map: # ghost
parent_graph[revision_id] = []
else:
# Only include parents which are in this sub-graph
parent_graph[revision_id] = [p for p in parent_map[revision_id]
if p in revision_ids]
sorter = tsort.MergeSorter(parent_graph, tip_revision)
return sorter.iter_topo_order()
def show_pending_merges(new, to_file, short=False):
"""Write out a display of pending merges in a working tree."""
parents = new.get_parent_ids()
if len(parents) < 2:
return
# we need one extra space for terminals that wrap on last char
term_width = osutils.terminal_width() - 1
if short:
first_prefix = 'P '
sub_prefix = 'P. '
else:
first_prefix = ' '
sub_prefix = ' '
pending = parents[1:]
branch = new.branch
last_revision = parents[0]
if not short:
to_file.write('pending merges:\n')
graph = branch.repository.get_graph()
other_revisions = [last_revision]
log_formatter = log.LineLogFormatter(to_file)
for merge in pending:
try:
rev = branch.repository.get_revisions([merge])[0]
except errors.NoSuchRevision:
# If we are missing a revision, just print out the revision id
to_file.write(first_prefix + '(ghost) ' + merge + '\n')
other_revisions.append(merge)
continue
# Log the merge, as it gets a slightly different formatting
log_message = log_formatter.log_string(None, rev,
term_width - len(first_prefix))
to_file.write(first_prefix + log_message + '\n')
# Find all of the revisions in the merge source, which are not in the
# last committed revision.
merge_extra = graph.find_unique_ancestors(merge, other_revisions)
other_revisions.append(merge)
merge_extra.discard(_mod_revision.NULL_REVISION)
# Get a handle to all of the revisions we will need
try:
revisions = dict((rev.revision_id, rev) for rev in
branch.repository.get_revisions(merge_extra))
except errors.NoSuchRevision:
# One of the sub nodes is a ghost, check each one
revisions = {}
for revision_id in merge_extra:
try:
rev = branch.repository.get_revisions([revision_id])[0]
except errors.NoSuchRevision:
revisions[revision_id] = None
else:
revisions[revision_id] = rev
# Display the revisions brought in by this merge.
rev_id_iterator = _get_sorted_revisions(merge, merge_extra,
branch.repository.get_parent_map(merge_extra))
# Skip the first node
num, first, depth, eom = rev_id_iterator.next()
if first != merge:
raise AssertionError('Somehow we misunderstood how'
' iter_topo_order works %s != %s' % (first, merge))
for num, sub_merge, depth, eom in rev_id_iterator:
rev = revisions[sub_merge]
if rev is None:
to_file.write(sub_prefix + '(ghost) ' + sub_merge + '\n')
continue
log_message = log_formatter.log_string(None,
revisions[sub_merge],
term_width - len(sub_prefix))
to_file.write(sub_prefix + log_message + '\n')
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