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|
# Copyright (C) 2005-2010 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Code to show logs of changes.
Various flavors of log can be produced:
* for one file, or the whole tree, and (not done yet) for
files in a given directory
* in "verbose" mode with a description of what changed from one
version to the next
* with file-ids and revision-ids shown
Logs are actually written out through an abstract LogFormatter
interface, which allows for different preferred formats. Plugins can
register formats too.
Logs can be produced in either forward (oldest->newest) or reverse
(newest->oldest) order.
Logs can be filtered to show only revisions matching a particular
search string, or within a particular range of revisions. The range
can be given as date/times, which are reduced to revisions before
calling in here.
In verbose mode we show a summary of what changed in each particular
revision. Note that this is the delta for changes in that revision
relative to its left-most parent, not the delta relative to the last
logged revision. So for example if you ask for a verbose log of
changes touching hello.c you will get a list of those revisions also
listing other things that were changed in the same revision, but not
all the changes since the previous revision that touched hello.c.
"""
import codecs
from cStringIO import StringIO
from itertools import (
chain,
izip,
)
import re
import sys
from warnings import (
warn,
)
from bzrlib.lazy_import import lazy_import
lazy_import(globals(), """
from bzrlib import (
bzrdir,
config,
diff,
errors,
foreign,
repository as _mod_repository,
revision as _mod_revision,
revisionspec,
trace,
tsort,
)
""")
from bzrlib import (
registry,
)
from bzrlib.osutils import (
format_date,
format_date_with_offset_in_original_timezone,
get_terminal_encoding,
re_compile_checked,
terminal_width,
)
from bzrlib.symbol_versioning import (
deprecated_function,
deprecated_in,
)
def find_touching_revisions(branch, file_id):
"""Yield a description of revisions which affect the file_id.
Each returned element is (revno, revision_id, description)
This is the list of revisions where the file is either added,
modified, renamed or deleted.
TODO: Perhaps some way to limit this to only particular revisions,
or to traverse a non-mainline set of revisions?
"""
last_ie = None
last_path = None
revno = 1
for revision_id in branch.revision_history():
this_inv = branch.repository.get_revision_inventory(revision_id)
if file_id in this_inv:
this_ie = this_inv[file_id]
this_path = this_inv.id2path(file_id)
else:
this_ie = this_path = None
# now we know how it was last time, and how it is in this revision.
# are those two states effectively the same or not?
if not this_ie and not last_ie:
# not present in either
pass
elif this_ie and not last_ie:
yield revno, revision_id, "added " + this_path
elif not this_ie and last_ie:
# deleted here
yield revno, revision_id, "deleted " + last_path
elif this_path != last_path:
yield revno, revision_id, ("renamed %s => %s" % (last_path, this_path))
elif (this_ie.text_size != last_ie.text_size
or this_ie.text_sha1 != last_ie.text_sha1):
yield revno, revision_id, "modified " + this_path
last_ie = this_ie
last_path = this_path
revno += 1
def _enumerate_history(branch):
rh = []
revno = 1
for rev_id in branch.revision_history():
rh.append((revno, rev_id))
revno += 1
return rh
def show_log(branch,
lf,
specific_fileid=None,
verbose=False,
direction='reverse',
start_revision=None,
end_revision=None,
search=None,
limit=None,
show_diff=False):
"""Write out human-readable log of commits to this branch.
This function is being retained for backwards compatibility but
should not be extended with new parameters. Use the new Logger class
instead, eg. Logger(branch, rqst).show(lf), adding parameters to the
make_log_request_dict function.
:param lf: The LogFormatter object showing the output.
:param specific_fileid: If not None, list only the commits affecting the
specified file, rather than all commits.
:param verbose: If True show added/changed/deleted/renamed files.
:param direction: 'reverse' (default) is latest to earliest; 'forward' is
earliest to latest.
:param start_revision: If not None, only show revisions >= start_revision
:param end_revision: If not None, only show revisions <= end_revision
:param search: If not None, only show revisions with matching commit
messages
:param limit: If set, shows only 'limit' revisions, all revisions are shown
if None or 0.
:param show_diff: If True, output a diff after each revision.
"""
# Convert old-style parameters to new-style parameters
if specific_fileid is not None:
file_ids = [specific_fileid]
else:
file_ids = None
if verbose:
if file_ids:
delta_type = 'partial'
else:
delta_type = 'full'
else:
delta_type = None
if show_diff:
if file_ids:
diff_type = 'partial'
else:
diff_type = 'full'
else:
diff_type = None
# Build the request and execute it
rqst = make_log_request_dict(direction=direction, specific_fileids=file_ids,
start_revision=start_revision, end_revision=end_revision,
limit=limit, message_search=search,
delta_type=delta_type, diff_type=diff_type)
Logger(branch, rqst).show(lf)
# Note: This needs to be kept this in sync with the defaults in
# make_log_request_dict() below
_DEFAULT_REQUEST_PARAMS = {
'direction': 'reverse',
'levels': 1,
'generate_tags': True,
'_match_using_deltas': True,
}
def make_log_request_dict(direction='reverse', specific_fileids=None,
start_revision=None, end_revision=None, limit=None,
message_search=None, levels=1, generate_tags=True, delta_type=None,
diff_type=None, _match_using_deltas=True):
"""Convenience function for making a logging request dictionary.
Using this function may make code slightly safer by ensuring
parameters have the correct names. It also provides a reference
point for documenting the supported parameters.
:param direction: 'reverse' (default) is latest to earliest;
'forward' is earliest to latest.
:param specific_fileids: If not None, only include revisions
affecting the specified files, rather than all revisions.
:param start_revision: If not None, only generate
revisions >= start_revision
:param end_revision: If not None, only generate
revisions <= end_revision
:param limit: If set, generate only 'limit' revisions, all revisions
are shown if None or 0.
:param message_search: If not None, only include revisions with
matching commit messages
:param levels: the number of levels of revisions to
generate; 1 for just the mainline; 0 for all levels.
:param generate_tags: If True, include tags for matched revisions.
:param delta_type: Either 'full', 'partial' or None.
'full' means generate the complete delta - adds/deletes/modifies/etc;
'partial' means filter the delta using specific_fileids;
None means do not generate any delta.
:param diff_type: Either 'full', 'partial' or None.
'full' means generate the complete diff - adds/deletes/modifies/etc;
'partial' means filter the diff using specific_fileids;
None means do not generate any diff.
:param _match_using_deltas: a private parameter controlling the
algorithm used for matching specific_fileids. This parameter
may be removed in the future so bzrlib client code should NOT
use it.
"""
return {
'direction': direction,
'specific_fileids': specific_fileids,
'start_revision': start_revision,
'end_revision': end_revision,
'limit': limit,
'message_search': message_search,
'levels': levels,
'generate_tags': generate_tags,
'delta_type': delta_type,
'diff_type': diff_type,
# Add 'private' attributes for features that may be deprecated
'_match_using_deltas': _match_using_deltas,
}
def _apply_log_request_defaults(rqst):
"""Apply default values to a request dictionary."""
result = _DEFAULT_REQUEST_PARAMS
if rqst:
result.update(rqst)
return result
class LogGenerator(object):
"""A generator of log revisions."""
def iter_log_revisions(self):
"""Iterate over LogRevision objects.
:return: An iterator yielding LogRevision objects.
"""
raise NotImplementedError(self.iter_log_revisions)
class Logger(object):
"""An object that generates, formats and displays a log."""
def __init__(self, branch, rqst):
"""Create a Logger.
:param branch: the branch to log
:param rqst: A dictionary specifying the query parameters.
See make_log_request_dict() for supported values.
"""
self.branch = branch
self.rqst = _apply_log_request_defaults(rqst)
def show(self, lf):
"""Display the log.
:param lf: The LogFormatter object to send the output to.
"""
if not isinstance(lf, LogFormatter):
warn("not a LogFormatter instance: %r" % lf)
self.branch.lock_read()
try:
if getattr(lf, 'begin_log', None):
lf.begin_log()
self._show_body(lf)
if getattr(lf, 'end_log', None):
lf.end_log()
finally:
self.branch.unlock()
def _show_body(self, lf):
"""Show the main log output.
Subclasses may wish to override this.
"""
# Tweak the LogRequest based on what the LogFormatter can handle.
# (There's no point generating stuff if the formatter can't display it.)
rqst = self.rqst
rqst['levels'] = lf.get_levels()
if not getattr(lf, 'supports_tags', False):
rqst['generate_tags'] = False
if not getattr(lf, 'supports_delta', False):
rqst['delta_type'] = None
if not getattr(lf, 'supports_diff', False):
rqst['diff_type'] = None
# Find and print the interesting revisions
generator = self._generator_factory(self.branch, rqst)
for lr in generator.iter_log_revisions():
lf.log_revision(lr)
lf.show_advice()
def _generator_factory(self, branch, rqst):
"""Make the LogGenerator object to use.
Subclasses may wish to override this.
"""
return _DefaultLogGenerator(branch, rqst)
class _StartNotLinearAncestor(Exception):
"""Raised when a start revision is not found walking left-hand history."""
class _DefaultLogGenerator(LogGenerator):
"""The default generator of log revisions."""
def __init__(self, branch, rqst):
self.branch = branch
self.rqst = rqst
if rqst.get('generate_tags') and branch.supports_tags():
self.rev_tag_dict = branch.tags.get_reverse_tag_dict()
else:
self.rev_tag_dict = {}
def iter_log_revisions(self):
"""Iterate over LogRevision objects.
:return: An iterator yielding LogRevision objects.
"""
rqst = self.rqst
levels = rqst.get('levels')
limit = rqst.get('limit')
diff_type = rqst.get('diff_type')
log_count = 0
revision_iterator = self._create_log_revision_iterator()
for revs in revision_iterator:
for (rev_id, revno, merge_depth), rev, delta in revs:
# 0 levels means show everything; merge_depth counts from 0
if levels != 0 and merge_depth >= levels:
continue
if diff_type is None:
diff = None
else:
diff = self._format_diff(rev, rev_id, diff_type)
yield LogRevision(rev, revno, merge_depth, delta,
self.rev_tag_dict.get(rev_id), diff)
if limit:
log_count += 1
if log_count >= limit:
return
def _format_diff(self, rev, rev_id, diff_type):
repo = self.branch.repository
if len(rev.parent_ids) == 0:
ancestor_id = _mod_revision.NULL_REVISION
else:
ancestor_id = rev.parent_ids[0]
tree_1 = repo.revision_tree(ancestor_id)
tree_2 = repo.revision_tree(rev_id)
file_ids = self.rqst.get('specific_fileids')
if diff_type == 'partial' and file_ids is not None:
specific_files = [tree_2.id2path(id) for id in file_ids]
else:
specific_files = None
s = StringIO()
diff.show_diff_trees(tree_1, tree_2, s, specific_files, old_label='',
new_label='')
return s.getvalue()
def _create_log_revision_iterator(self):
"""Create a revision iterator for log.
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
self.start_rev_id, self.end_rev_id = _get_revision_limits(
self.branch, self.rqst.get('start_revision'),
self.rqst.get('end_revision'))
if self.rqst.get('_match_using_deltas'):
return self._log_revision_iterator_using_delta_matching()
else:
# We're using the per-file-graph algorithm. This scales really
# well but only makes sense if there is a single file and it's
# not a directory
file_count = len(self.rqst.get('specific_fileids'))
if file_count != 1:
raise BzrError("illegal LogRequest: must match-using-deltas "
"when logging %d files" % file_count)
return self._log_revision_iterator_using_per_file_graph()
def _log_revision_iterator_using_delta_matching(self):
# Get the base revisions, filtering by the revision range
rqst = self.rqst
generate_merge_revisions = rqst.get('levels') != 1
delayed_graph_generation = not rqst.get('specific_fileids') and (
rqst.get('limit') or self.start_rev_id or self.end_rev_id)
view_revisions = _calc_view_revisions(self.branch, self.start_rev_id,
self.end_rev_id, rqst.get('direction'), generate_merge_revisions,
delayed_graph_generation=delayed_graph_generation)
# Apply the other filters
return make_log_rev_iterator(self.branch, view_revisions,
rqst.get('delta_type'), rqst.get('message_search'),
file_ids=rqst.get('specific_fileids'),
direction=rqst.get('direction'))
def _log_revision_iterator_using_per_file_graph(self):
# Get the base revisions, filtering by the revision range.
# Note that we always generate the merge revisions because
# filter_revisions_touching_file_id() requires them ...
rqst = self.rqst
view_revisions = _calc_view_revisions(self.branch, self.start_rev_id,
self.end_rev_id, rqst.get('direction'), True)
if not isinstance(view_revisions, list):
view_revisions = list(view_revisions)
view_revisions = _filter_revisions_touching_file_id(self.branch,
rqst.get('specific_fileids')[0], view_revisions,
include_merges=rqst.get('levels') != 1)
return make_log_rev_iterator(self.branch, view_revisions,
rqst.get('delta_type'), rqst.get('message_search'))
def _calc_view_revisions(branch, start_rev_id, end_rev_id, direction,
generate_merge_revisions, delayed_graph_generation=False):
"""Calculate the revisions to view.
:return: An iterator of (revision_id, dotted_revno, merge_depth) tuples OR
a list of the same tuples.
"""
br_revno, br_rev_id = branch.last_revision_info()
if br_revno == 0:
return []
# If a single revision is requested, check we can handle it
generate_single_revision = (end_rev_id and start_rev_id == end_rev_id and
(not generate_merge_revisions or not _has_merges(branch, end_rev_id)))
if generate_single_revision:
return _generate_one_revision(branch, end_rev_id, br_rev_id, br_revno)
# If we only want to see linear revisions, we can iterate ...
if not generate_merge_revisions:
return _generate_flat_revisions(branch, start_rev_id, end_rev_id,
direction)
else:
return _generate_all_revisions(branch, start_rev_id, end_rev_id,
direction, delayed_graph_generation)
def _generate_one_revision(branch, rev_id, br_rev_id, br_revno):
if rev_id == br_rev_id:
# It's the tip
return [(br_rev_id, br_revno, 0)]
else:
revno = branch.revision_id_to_dotted_revno(rev_id)
revno_str = '.'.join(str(n) for n in revno)
return [(rev_id, revno_str, 0)]
def _generate_flat_revisions(branch, start_rev_id, end_rev_id, direction):
result = _linear_view_revisions(branch, start_rev_id, end_rev_id)
# If a start limit was given and it's not obviously an
# ancestor of the end limit, check it before outputting anything
if direction == 'forward' or (start_rev_id
and not _is_obvious_ancestor(branch, start_rev_id, end_rev_id)):
try:
result = list(result)
except _StartNotLinearAncestor:
raise errors.BzrCommandError('Start revision not found in'
' left-hand history of end revision.')
if direction == 'forward':
result = reversed(result)
return result
def _generate_all_revisions(branch, start_rev_id, end_rev_id, direction,
delayed_graph_generation):
# On large trees, generating the merge graph can take 30-60 seconds
# so we delay doing it until a merge is detected, incrementally
# returning initial (non-merge) revisions while we can.
# The above is only true for old formats (<= 0.92), for newer formats, a
# couple of seconds only should be needed to load the whole graph and the
# other graph operations needed are even faster than that -- vila 100201
initial_revisions = []
if delayed_graph_generation:
try:
for rev_id, revno, depth in _linear_view_revisions(
branch, start_rev_id, end_rev_id):
if _has_merges(branch, rev_id):
# The end_rev_id can be nested down somewhere. We need an
# explicit ancestry check. There is an ambiguity here as we
# may not raise _StartNotLinearAncestor for a revision that
# is an ancestor but not a *linear* one. But since we have
# loaded the graph to do the check (or calculate a dotted
# revno), we may as well accept to show the log...
# -- vila 100201
graph = branch.repository.get_graph()
if not graph.is_ancestor(start_rev_id, end_rev_id):
raise _StartNotLinearAncestor()
end_rev_id = rev_id
break
else:
initial_revisions.append((rev_id, revno, depth))
else:
# No merged revisions found
if direction == 'reverse':
return initial_revisions
elif direction == 'forward':
return reversed(initial_revisions)
else:
raise ValueError('invalid direction %r' % direction)
except _StartNotLinearAncestor:
# A merge was never detected so the lower revision limit can't
# be nested down somewhere
raise errors.BzrCommandError('Start revision not found in'
' history of end revision.')
# A log including nested merges is required. If the direction is reverse,
# we rebase the initial merge depths so that the development line is
# shown naturally, i.e. just like it is for linear logging. We can easily
# make forward the exact opposite display, but showing the merge revisions
# indented at the end seems slightly nicer in that case.
view_revisions = chain(iter(initial_revisions),
_graph_view_revisions(branch, start_rev_id, end_rev_id,
rebase_initial_depths=direction == 'reverse'))
if direction == 'reverse':
return view_revisions
elif direction == 'forward':
# Forward means oldest first, adjusting for depth.
view_revisions = reverse_by_depth(list(view_revisions))
return _rebase_merge_depth(view_revisions)
else:
raise ValueError('invalid direction %r' % direction)
def _has_merges(branch, rev_id):
"""Does a revision have multiple parents or not?"""
parents = branch.repository.get_parent_map([rev_id]).get(rev_id, [])
return len(parents) > 1
def _is_obvious_ancestor(branch, start_rev_id, end_rev_id):
"""Is start_rev_id an obvious ancestor of end_rev_id?"""
if start_rev_id and end_rev_id:
start_dotted = branch.revision_id_to_dotted_revno(start_rev_id)
end_dotted = branch.revision_id_to_dotted_revno(end_rev_id)
if len(start_dotted) == 1 and len(end_dotted) == 1:
# both on mainline
return start_dotted[0] <= end_dotted[0]
elif (len(start_dotted) == 3 and len(end_dotted) == 3 and
start_dotted[0:1] == end_dotted[0:1]):
# both on same development line
return start_dotted[2] <= end_dotted[2]
else:
# not obvious
return False
# if either start or end is not specified then we use either the first or
# the last revision and *they* are obvious ancestors.
return True
def _linear_view_revisions(branch, start_rev_id, end_rev_id):
"""Calculate a sequence of revisions to view, newest to oldest.
:param start_rev_id: the lower revision-id
:param end_rev_id: the upper revision-id
:return: An iterator of (revision_id, dotted_revno, merge_depth) tuples.
:raises _StartNotLinearAncestor: if a start_rev_id is specified but
is not found walking the left-hand history
"""
br_revno, br_rev_id = branch.last_revision_info()
repo = branch.repository
if start_rev_id is None and end_rev_id is None:
cur_revno = br_revno
for revision_id in repo.iter_reverse_revision_history(br_rev_id):
yield revision_id, str(cur_revno), 0
cur_revno -= 1
else:
if end_rev_id is None:
end_rev_id = br_rev_id
found_start = start_rev_id is None
for revision_id in repo.iter_reverse_revision_history(end_rev_id):
revno = branch.revision_id_to_dotted_revno(revision_id)
revno_str = '.'.join(str(n) for n in revno)
if not found_start and revision_id == start_rev_id:
yield revision_id, revno_str, 0
found_start = True
break
else:
yield revision_id, revno_str, 0
else:
if not found_start:
raise _StartNotLinearAncestor()
def _graph_view_revisions(branch, start_rev_id, end_rev_id,
rebase_initial_depths=True):
"""Calculate revisions to view including merges, newest to oldest.
:param branch: the branch
:param start_rev_id: the lower revision-id
:param end_rev_id: the upper revision-id
:param rebase_initial_depth: should depths be rebased until a mainline
revision is found?
:return: An iterator of (revision_id, dotted_revno, merge_depth) tuples.
"""
view_revisions = branch.iter_merge_sorted_revisions(
start_revision_id=end_rev_id, stop_revision_id=start_rev_id,
stop_rule="with-merges")
if not rebase_initial_depths:
for (rev_id, merge_depth, revno, end_of_merge
) in view_revisions:
yield rev_id, '.'.join(map(str, revno)), merge_depth
else:
# We're following a development line starting at a merged revision.
# We need to adjust depths down by the initial depth until we find
# a depth less than it. Then we use that depth as the adjustment.
# If and when we reach the mainline, depth adjustment ends.
depth_adjustment = None
for (rev_id, merge_depth, revno, end_of_merge
) in view_revisions:
if depth_adjustment is None:
depth_adjustment = merge_depth
if depth_adjustment:
if merge_depth < depth_adjustment:
# From now on we reduce the depth adjustement, this can be
# surprising for users. The alternative requires two passes
# which breaks the fast display of the first revision
# though.
depth_adjustment = merge_depth
merge_depth -= depth_adjustment
yield rev_id, '.'.join(map(str, revno)), merge_depth
@deprecated_function(deprecated_in((2, 2, 0)))
def calculate_view_revisions(branch, start_revision, end_revision, direction,
specific_fileid, generate_merge_revisions):
"""Calculate the revisions to view.
:return: An iterator of (revision_id, dotted_revno, merge_depth) tuples OR
a list of the same tuples.
"""
start_rev_id, end_rev_id = _get_revision_limits(branch, start_revision,
end_revision)
view_revisions = list(_calc_view_revisions(branch, start_rev_id, end_rev_id,
direction, generate_merge_revisions or specific_fileid))
if specific_fileid:
view_revisions = _filter_revisions_touching_file_id(branch,
specific_fileid, view_revisions,
include_merges=generate_merge_revisions)
return _rebase_merge_depth(view_revisions)
def _rebase_merge_depth(view_revisions):
"""Adjust depths upwards so the top level is 0."""
# If either the first or last revision have a merge_depth of 0, we're done
if view_revisions and view_revisions[0][2] and view_revisions[-1][2]:
min_depth = min([d for r,n,d in view_revisions])
if min_depth != 0:
view_revisions = [(r,n,d-min_depth) for r,n,d in view_revisions]
return view_revisions
def make_log_rev_iterator(branch, view_revisions, generate_delta, search,
file_ids=None, direction='reverse'):
"""Create a revision iterator for log.
:param branch: The branch being logged.
:param view_revisions: The revisions being viewed.
:param generate_delta: Whether to generate a delta for each revision.
Permitted values are None, 'full' and 'partial'.
:param search: A user text search string.
:param file_ids: If non empty, only revisions matching one or more of
the file-ids are to be kept.
:param direction: the direction in which view_revisions is sorted
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
# Convert view_revisions into (view, None, None) groups to fit with
# the standard interface here.
if type(view_revisions) == list:
# A single batch conversion is faster than many incremental ones.
# As we have all the data, do a batch conversion.
nones = [None] * len(view_revisions)
log_rev_iterator = iter([zip(view_revisions, nones, nones)])
else:
def _convert():
for view in view_revisions:
yield (view, None, None)
log_rev_iterator = iter([_convert()])
for adapter in log_adapters:
# It would be nicer if log adapters were first class objects
# with custom parameters. This will do for now. IGC 20090127
if adapter == _make_delta_filter:
log_rev_iterator = adapter(branch, generate_delta,
search, log_rev_iterator, file_ids, direction)
else:
log_rev_iterator = adapter(branch, generate_delta,
search, log_rev_iterator)
return log_rev_iterator
def _make_search_filter(branch, generate_delta, search, log_rev_iterator):
"""Create a filtered iterator of log_rev_iterator matching on a regex.
:param branch: The branch being logged.
:param generate_delta: Whether to generate a delta for each revision.
:param search: A user text search string.
:param log_rev_iterator: An input iterator containing all revisions that
could be displayed, in lists.
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
if search is None:
return log_rev_iterator
searchRE = re_compile_checked(search, re.IGNORECASE,
'log message filter')
return _filter_message_re(searchRE, log_rev_iterator)
def _filter_message_re(searchRE, log_rev_iterator):
for revs in log_rev_iterator:
new_revs = []
for (rev_id, revno, merge_depth), rev, delta in revs:
if searchRE.search(rev.message):
new_revs.append(((rev_id, revno, merge_depth), rev, delta))
yield new_revs
def _make_delta_filter(branch, generate_delta, search, log_rev_iterator,
fileids=None, direction='reverse'):
"""Add revision deltas to a log iterator if needed.
:param branch: The branch being logged.
:param generate_delta: Whether to generate a delta for each revision.
Permitted values are None, 'full' and 'partial'.
:param search: A user text search string.
:param log_rev_iterator: An input iterator containing all revisions that
could be displayed, in lists.
:param fileids: If non empty, only revisions matching one or more of
the file-ids are to be kept.
:param direction: the direction in which view_revisions is sorted
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
if not generate_delta and not fileids:
return log_rev_iterator
return _generate_deltas(branch.repository, log_rev_iterator,
generate_delta, fileids, direction)
def _generate_deltas(repository, log_rev_iterator, delta_type, fileids,
direction):
"""Create deltas for each batch of revisions in log_rev_iterator.
If we're only generating deltas for the sake of filtering against
file-ids, we stop generating deltas once all file-ids reach the
appropriate life-cycle point. If we're receiving data newest to
oldest, then that life-cycle point is 'add', otherwise it's 'remove'.
"""
check_fileids = fileids is not None and len(fileids) > 0
if check_fileids:
fileid_set = set(fileids)
if direction == 'reverse':
stop_on = 'add'
else:
stop_on = 'remove'
else:
fileid_set = None
for revs in log_rev_iterator:
# If we were matching against fileids and we've run out,
# there's nothing left to do
if check_fileids and not fileid_set:
return
revisions = [rev[1] for rev in revs]
new_revs = []
if delta_type == 'full' and not check_fileids:
deltas = repository.get_deltas_for_revisions(revisions)
for rev, delta in izip(revs, deltas):
new_revs.append((rev[0], rev[1], delta))
else:
deltas = repository.get_deltas_for_revisions(revisions, fileid_set)
for rev, delta in izip(revs, deltas):
if check_fileids:
if delta is None or not delta.has_changed():
continue
else:
_update_fileids(delta, fileid_set, stop_on)
if delta_type is None:
delta = None
elif delta_type == 'full':
# If the file matches all the time, rebuilding
# a full delta like this in addition to a partial
# one could be slow. However, it's likely that
# most revisions won't get this far, making it
# faster to filter on the partial deltas and
# build the occasional full delta than always
# building full deltas and filtering those.
rev_id = rev[0][0]
delta = repository.get_revision_delta(rev_id)
new_revs.append((rev[0], rev[1], delta))
yield new_revs
def _update_fileids(delta, fileids, stop_on):
"""Update the set of file-ids to search based on file lifecycle events.
:param fileids: a set of fileids to update
:param stop_on: either 'add' or 'remove' - take file-ids out of the
fileids set once their add or remove entry is detected respectively
"""
if stop_on == 'add':
for item in delta.added:
if item[1] in fileids:
fileids.remove(item[1])
elif stop_on == 'delete':
for item in delta.removed:
if item[1] in fileids:
fileids.remove(item[1])
def _make_revision_objects(branch, generate_delta, search, log_rev_iterator):
"""Extract revision objects from the repository
:param branch: The branch being logged.
:param generate_delta: Whether to generate a delta for each revision.
:param search: A user text search string.
:param log_rev_iterator: An input iterator containing all revisions that
could be displayed, in lists.
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
repository = branch.repository
for revs in log_rev_iterator:
# r = revision_id, n = revno, d = merge depth
revision_ids = [view[0] for view, _, _ in revs]
revisions = repository.get_revisions(revision_ids)
revs = [(rev[0], revision, rev[2]) for rev, revision in
izip(revs, revisions)]
yield revs
def _make_batch_filter(branch, generate_delta, search, log_rev_iterator):
"""Group up a single large batch into smaller ones.
:param branch: The branch being logged.
:param generate_delta: Whether to generate a delta for each revision.
:param search: A user text search string.
:param log_rev_iterator: An input iterator containing all revisions that
could be displayed, in lists.
:return: An iterator over lists of ((rev_id, revno, merge_depth), rev,
delta).
"""
repository = branch.repository
num = 9
for batch in log_rev_iterator:
batch = iter(batch)
while True:
step = [detail for _, detail in zip(range(num), batch)]
if len(step) == 0:
break
yield step
num = min(int(num * 1.5), 200)
def _get_revision_limits(branch, start_revision, end_revision):
"""Get and check revision limits.
:param branch: The branch containing the revisions.
:param start_revision: The first revision to be logged.
For backwards compatibility this may be a mainline integer revno,
but for merge revision support a RevisionInfo is expected.
:param end_revision: The last revision to be logged.
For backwards compatibility this may be a mainline integer revno,
but for merge revision support a RevisionInfo is expected.
:return: (start_rev_id, end_rev_id) tuple.
"""
branch_revno, branch_rev_id = branch.last_revision_info()
start_rev_id = None
if start_revision is None:
start_revno = 1
else:
if isinstance(start_revision, revisionspec.RevisionInfo):
start_rev_id = start_revision.rev_id
start_revno = start_revision.revno or 1
else:
branch.check_real_revno(start_revision)
start_revno = start_revision
start_rev_id = branch.get_rev_id(start_revno)
end_rev_id = None
if end_revision is None:
end_revno = branch_revno
else:
if isinstance(end_revision, revisionspec.RevisionInfo):
end_rev_id = end_revision.rev_id
end_revno = end_revision.revno or branch_revno
else:
branch.check_real_revno(end_revision)
end_revno = end_revision
end_rev_id = branch.get_rev_id(end_revno)
if branch_revno != 0:
if (start_rev_id == _mod_revision.NULL_REVISION
or end_rev_id == _mod_revision.NULL_REVISION):
raise errors.BzrCommandError('Logging revision 0 is invalid.')
if start_revno > end_revno:
raise errors.BzrCommandError("Start revision must be older than "
"the end revision.")
return (start_rev_id, end_rev_id)
def _get_mainline_revs(branch, start_revision, end_revision):
"""Get the mainline revisions from the branch.
Generates the list of mainline revisions for the branch.
:param branch: The branch containing the revisions.
:param start_revision: The first revision to be logged.
For backwards compatibility this may be a mainline integer revno,
but for merge revision support a RevisionInfo is expected.
:param end_revision: The last revision to be logged.
For backwards compatibility this may be a mainline integer revno,
but for merge revision support a RevisionInfo is expected.
:return: A (mainline_revs, rev_nos, start_rev_id, end_rev_id) tuple.
"""
branch_revno, branch_last_revision = branch.last_revision_info()
if branch_revno == 0:
return None, None, None, None
# For mainline generation, map start_revision and end_revision to
# mainline revnos. If the revision is not on the mainline choose the
# appropriate extreme of the mainline instead - the extra will be
# filtered later.
# Also map the revisions to rev_ids, to be used in the later filtering
# stage.
start_rev_id = None
if start_revision is None:
start_revno = 1
else:
if isinstance(start_revision, revisionspec.RevisionInfo):
start_rev_id = start_revision.rev_id
start_revno = start_revision.revno or 1
else:
branch.check_real_revno(start_revision)
start_revno = start_revision
end_rev_id = None
if end_revision is None:
end_revno = branch_revno
else:
if isinstance(end_revision, revisionspec.RevisionInfo):
end_rev_id = end_revision.rev_id
end_revno = end_revision.revno or branch_revno
else:
branch.check_real_revno(end_revision)
end_revno = end_revision
if ((start_rev_id == _mod_revision.NULL_REVISION)
or (end_rev_id == _mod_revision.NULL_REVISION)):
raise errors.BzrCommandError('Logging revision 0 is invalid.')
if start_revno > end_revno:
raise errors.BzrCommandError("Start revision must be older than "
"the end revision.")
if end_revno < start_revno:
return None, None, None, None
cur_revno = branch_revno
rev_nos = {}
mainline_revs = []
for revision_id in branch.repository.iter_reverse_revision_history(
branch_last_revision):
if cur_revno < start_revno:
# We have gone far enough, but we always add 1 more revision
rev_nos[revision_id] = cur_revno
mainline_revs.append(revision_id)
break
if cur_revno <= end_revno:
rev_nos[revision_id] = cur_revno
mainline_revs.append(revision_id)
cur_revno -= 1
else:
# We walked off the edge of all revisions, so we add a 'None' marker
mainline_revs.append(None)
mainline_revs.reverse()
# override the mainline to look like the revision history.
return mainline_revs, rev_nos, start_rev_id, end_rev_id
@deprecated_function(deprecated_in((2, 2, 0)))
def _filter_revision_range(view_revisions, start_rev_id, end_rev_id):
"""Filter view_revisions based on revision ranges.
:param view_revisions: A list of (revision_id, dotted_revno, merge_depth)
tuples to be filtered.
:param start_rev_id: If not NONE specifies the first revision to be logged.
If NONE then all revisions up to the end_rev_id are logged.
:param end_rev_id: If not NONE specifies the last revision to be logged.
If NONE then all revisions up to the end of the log are logged.
:return: The filtered view_revisions.
"""
if start_rev_id or end_rev_id:
revision_ids = [r for r, n, d in view_revisions]
if start_rev_id:
start_index = revision_ids.index(start_rev_id)
else:
start_index = 0
if start_rev_id == end_rev_id:
end_index = start_index
else:
if end_rev_id:
end_index = revision_ids.index(end_rev_id)
else:
end_index = len(view_revisions) - 1
# To include the revisions merged into the last revision,
# extend end_rev_id down to, but not including, the next rev
# with the same or lesser merge_depth
end_merge_depth = view_revisions[end_index][2]
try:
for index in xrange(end_index+1, len(view_revisions)+1):
if view_revisions[index][2] <= end_merge_depth:
end_index = index - 1
break
except IndexError:
# if the search falls off the end then log to the end as well
end_index = len(view_revisions) - 1
view_revisions = view_revisions[start_index:end_index+1]
return view_revisions
def _filter_revisions_touching_file_id(branch, file_id, view_revisions,
include_merges=True):
r"""Return the list of revision ids which touch a given file id.
The function filters view_revisions and returns a subset.
This includes the revisions which directly change the file id,
and the revisions which merge these changes. So if the
revision graph is::
A-.
|\ \
B C E
|/ /
D |
|\|
| F
|/
G
And 'C' changes a file, then both C and D will be returned. F will not be
returned even though it brings the changes to C into the branch starting
with E. (Note that if we were using F as the tip instead of G, then we
would see C, D, F.)
This will also be restricted based on a subset of the mainline.
:param branch: The branch where we can get text revision information.
:param file_id: Filter out revisions that do not touch file_id.
:param view_revisions: A list of (revision_id, dotted_revno, merge_depth)
tuples. This is the list of revisions which will be filtered. It is
assumed that view_revisions is in merge_sort order (i.e. newest
revision first ).
:param include_merges: include merge revisions in the result or not
:return: A list of (revision_id, dotted_revno, merge_depth) tuples.
"""
# Lookup all possible text keys to determine which ones actually modified
# the file.
text_keys = [(file_id, rev_id) for rev_id, revno, depth in view_revisions]
next_keys = None
# Looking up keys in batches of 1000 can cut the time in half, as well as
# memory consumption. GraphIndex *does* like to look for a few keys in
# parallel, it just doesn't like looking for *lots* of keys in parallel.
# TODO: This code needs to be re-evaluated periodically as we tune the
# indexing layer. We might consider passing in hints as to the known
# access pattern (sparse/clustered, high success rate/low success
# rate). This particular access is clustered with a low success rate.
get_parent_map = branch.repository.texts.get_parent_map
modified_text_revisions = set()
chunk_size = 1000
for start in xrange(0, len(text_keys), chunk_size):
next_keys = text_keys[start:start + chunk_size]
# Only keep the revision_id portion of the key
modified_text_revisions.update(
[k[1] for k in get_parent_map(next_keys)])
del text_keys, next_keys
result = []
# Track what revisions will merge the current revision, replace entries
# with 'None' when they have been added to result
current_merge_stack = [None]
for info in view_revisions:
rev_id, revno, depth = info
if depth == len(current_merge_stack):
current_merge_stack.append(info)
else:
del current_merge_stack[depth + 1:]
current_merge_stack[-1] = info
if rev_id in modified_text_revisions:
# This needs to be logged, along with the extra revisions
for idx in xrange(len(current_merge_stack)):
node = current_merge_stack[idx]
if node is not None:
if include_merges or node[2] == 0:
result.append(node)
current_merge_stack[idx] = None
return result
@deprecated_function(deprecated_in((2, 2, 0)))
def get_view_revisions(mainline_revs, rev_nos, branch, direction,
include_merges=True):
"""Produce an iterator of revisions to show
:return: an iterator of (revision_id, revno, merge_depth)
(if there is no revno for a revision, None is supplied)
"""
if not include_merges:
revision_ids = mainline_revs[1:]
if direction == 'reverse':
revision_ids.reverse()
for revision_id in revision_ids:
yield revision_id, str(rev_nos[revision_id]), 0
return
graph = branch.repository.get_graph()
# This asks for all mainline revisions, which means we only have to spider
# sideways, rather than depth history. That said, its still size-of-history
# and should be addressed.
# mainline_revisions always includes an extra revision at the beginning, so
# don't request it.
parent_map = dict(((key, value) for key, value in
graph.iter_ancestry(mainline_revs[1:]) if value is not None))
# filter out ghosts; merge_sort errors on ghosts.
rev_graph = _mod_repository._strip_NULL_ghosts(parent_map)
merge_sorted_revisions = tsort.merge_sort(
rev_graph,
mainline_revs[-1],
mainline_revs,
generate_revno=True)
if direction == 'forward':
# forward means oldest first.
merge_sorted_revisions = reverse_by_depth(merge_sorted_revisions)
elif direction != 'reverse':
raise ValueError('invalid direction %r' % direction)
for (sequence, rev_id, merge_depth, revno, end_of_merge
) in merge_sorted_revisions:
yield rev_id, '.'.join(map(str, revno)), merge_depth
def reverse_by_depth(merge_sorted_revisions, _depth=0):
"""Reverse revisions by depth.
Revisions with a different depth are sorted as a group with the previous
revision of that depth. There may be no topological justification for this,
but it looks much nicer.
"""
# Add a fake revision at start so that we can always attach sub revisions
merge_sorted_revisions = [(None, None, _depth)] + merge_sorted_revisions
zd_revisions = []
for val in merge_sorted_revisions:
if val[2] == _depth:
# Each revision at the current depth becomes a chunk grouping all
# higher depth revisions.
zd_revisions.append([val])
else:
zd_revisions[-1].append(val)
for revisions in zd_revisions:
if len(revisions) > 1:
# We have higher depth revisions, let reverse them locally
revisions[1:] = reverse_by_depth(revisions[1:], _depth + 1)
zd_revisions.reverse()
result = []
for chunk in zd_revisions:
result.extend(chunk)
if _depth == 0:
# Top level call, get rid of the fake revisions that have been added
result = [r for r in result if r[0] is not None and r[1] is not None]
return result
class LogRevision(object):
"""A revision to be logged (by LogFormatter.log_revision).
A simple wrapper for the attributes of a revision to be logged.
The attributes may or may not be populated, as determined by the
logging options and the log formatter capabilities.
"""
def __init__(self, rev=None, revno=None, merge_depth=0, delta=None,
tags=None, diff=None):
self.rev = rev
self.revno = str(revno)
self.merge_depth = merge_depth
self.delta = delta
self.tags = tags
self.diff = diff
class LogFormatter(object):
"""Abstract class to display log messages.
At a minimum, a derived class must implement the log_revision method.
If the LogFormatter needs to be informed of the beginning or end of
a log it should implement the begin_log and/or end_log hook methods.
A LogFormatter should define the following supports_XXX flags
to indicate which LogRevision attributes it supports:
- supports_delta must be True if this log formatter supports delta.
Otherwise the delta attribute may not be populated. The 'delta_format'
attribute describes whether the 'short_status' format (1) or the long
one (2) should be used.
- supports_merge_revisions must be True if this log formatter supports
merge revisions. If not, then only mainline revisions will be passed
to the formatter.
- preferred_levels is the number of levels this formatter defaults to.
The default value is zero meaning display all levels.
This value is only relevant if supports_merge_revisions is True.
- supports_tags must be True if this log formatter supports tags.
Otherwise the tags attribute may not be populated.
- supports_diff must be True if this log formatter supports diffs.
Otherwise the diff attribute may not be populated.
Plugins can register functions to show custom revision properties using
the properties_handler_registry. The registered function
must respect the following interface description:
def my_show_properties(properties_dict):
# code that returns a dict {'name':'value'} of the properties
# to be shown
"""
preferred_levels = 0
def __init__(self, to_file, show_ids=False, show_timezone='original',
delta_format=None, levels=None, show_advice=False,
to_exact_file=None):
"""Create a LogFormatter.
:param to_file: the file to output to
:param to_exact_file: if set, gives an output stream to which
non-Unicode diffs are written.
:param show_ids: if True, revision-ids are to be displayed
:param show_timezone: the timezone to use
:param delta_format: the level of delta information to display
or None to leave it to the formatter to decide
:param levels: the number of levels to display; None or -1 to
let the log formatter decide.
:param show_advice: whether to show advice at the end of the
log or not
"""
self.to_file = to_file
# 'exact' stream used to show diff, it should print content 'as is'
# and should not try to decode/encode it to unicode to avoid bug #328007
if to_exact_file is not None:
self.to_exact_file = to_exact_file
else:
# XXX: somewhat hacky; this assumes it's a codec writer; it's better
# for code that expects to get diffs to pass in the exact file
# stream
self.to_exact_file = getattr(to_file, 'stream', to_file)
self.show_ids = show_ids
self.show_timezone = show_timezone
if delta_format is None:
# Ensures backward compatibility
delta_format = 2 # long format
self.delta_format = delta_format
self.levels = levels
self._show_advice = show_advice
self._merge_count = 0
def get_levels(self):
"""Get the number of levels to display or 0 for all."""
if getattr(self, 'supports_merge_revisions', False):
if self.levels is None or self.levels == -1:
self.levels = self.preferred_levels
else:
self.levels = 1
return self.levels
def log_revision(self, revision):
"""Log a revision.
:param revision: The LogRevision to be logged.
"""
raise NotImplementedError('not implemented in abstract base')
def show_advice(self):
"""Output user advice, if any, when the log is completed."""
if self._show_advice and self.levels == 1 and self._merge_count > 0:
advice_sep = self.get_advice_separator()
if advice_sep:
self.to_file.write(advice_sep)
self.to_file.write(
"Use --include-merges or -n0 to see merged revisions.\n")
def get_advice_separator(self):
"""Get the text separating the log from the closing advice."""
return ''
def short_committer(self, rev):
name, address = config.parse_username(rev.committer)
if name:
return name
return address
def short_author(self, rev):
name, address = config.parse_username(rev.get_apparent_authors()[0])
if name:
return name
return address
def merge_marker(self, revision):
"""Get the merge marker to include in the output or '' if none."""
if len(revision.rev.parent_ids) > 1:
self._merge_count += 1
return ' [merge]'
else:
return ''
def show_properties(self, revision, indent):
"""Displays the custom properties returned by each registered handler.
If a registered handler raises an error it is propagated.
"""
for line in self.custom_properties(revision):
self.to_file.write("%s%s\n" % (indent, line))
def custom_properties(self, revision):
"""Format the custom properties returned by each registered handler.
If a registered handler raises an error it is propagated.
:return: a list of formatted lines (excluding trailing newlines)
"""
lines = self._foreign_info_properties(revision)
for key, handler in properties_handler_registry.iteritems():
lines.extend(self._format_properties(handler(revision)))
return lines
def _foreign_info_properties(self, rev):
"""Custom log displayer for foreign revision identifiers.
:param rev: Revision object.
"""
# Revision comes directly from a foreign repository
if isinstance(rev, foreign.ForeignRevision):
return self._format_properties(rev.mapping.vcs.show_foreign_revid(rev.foreign_revid))
# Imported foreign revision revision ids always contain :
if not ":" in rev.revision_id:
return []
# Revision was once imported from a foreign repository
try:
foreign_revid, mapping = \
foreign.foreign_vcs_registry.parse_revision_id(rev.revision_id)
except errors.InvalidRevisionId:
return []
return self._format_properties(
mapping.vcs.show_foreign_revid(foreign_revid))
def _format_properties(self, properties):
lines = []
for key, value in properties.items():
lines.append(key + ': ' + value)
return lines
def show_diff(self, to_file, diff, indent):
for l in diff.rstrip().split('\n'):
to_file.write(indent + '%s\n' % (l,))
# Separator between revisions in long format
_LONG_SEP = '-' * 60
class LongLogFormatter(LogFormatter):
supports_merge_revisions = True
preferred_levels = 1
supports_delta = True
supports_tags = True
supports_diff = True
def __init__(self, *args, **kwargs):
super(LongLogFormatter, self).__init__(*args, **kwargs)
if self.show_timezone == 'original':
self.date_string = self._date_string_original_timezone
else:
self.date_string = self._date_string_with_timezone
def _date_string_with_timezone(self, rev):
return format_date(rev.timestamp, rev.timezone or 0,
self.show_timezone)
def _date_string_original_timezone(self, rev):
return format_date_with_offset_in_original_timezone(rev.timestamp,
rev.timezone or 0)
def log_revision(self, revision):
"""Log a revision, either merged or not."""
indent = ' ' * revision.merge_depth
lines = [_LONG_SEP]
if revision.revno is not None:
lines.append('revno: %s%s' % (revision.revno,
self.merge_marker(revision)))
if revision.tags:
lines.append('tags: %s' % (', '.join(revision.tags)))
if self.show_ids:
lines.append('revision-id: %s' % (revision.rev.revision_id,))
for parent_id in revision.rev.parent_ids:
lines.append('parent: %s' % (parent_id,))
lines.extend(self.custom_properties(revision.rev))
committer = revision.rev.committer
authors = revision.rev.get_apparent_authors()
if authors != [committer]:
lines.append('author: %s' % (", ".join(authors),))
lines.append('committer: %s' % (committer,))
branch_nick = revision.rev.properties.get('branch-nick', None)
if branch_nick is not None:
lines.append('branch nick: %s' % (branch_nick,))
lines.append('timestamp: %s' % (self.date_string(revision.rev),))
lines.append('message:')
if not revision.rev.message:
lines.append(' (no message)')
else:
message = revision.rev.message.rstrip('\r\n')
for l in message.split('\n'):
lines.append(' %s' % (l,))
# Dump the output, appending the delta and diff if requested
to_file = self.to_file
to_file.write("%s%s\n" % (indent, ('\n' + indent).join(lines)))
if revision.delta is not None:
# We don't respect delta_format for compatibility
revision.delta.show(to_file, self.show_ids, indent=indent,
short_status=False)
if revision.diff is not None:
to_file.write(indent + 'diff:\n')
to_file.flush()
# Note: we explicitly don't indent the diff (relative to the
# revision information) so that the output can be fed to patch -p0
self.show_diff(self.to_exact_file, revision.diff, indent)
self.to_exact_file.flush()
def get_advice_separator(self):
"""Get the text separating the log from the closing advice."""
return '-' * 60 + '\n'
class ShortLogFormatter(LogFormatter):
supports_merge_revisions = True
preferred_levels = 1
supports_delta = True
supports_tags = True
supports_diff = True
def __init__(self, *args, **kwargs):
super(ShortLogFormatter, self).__init__(*args, **kwargs)
self.revno_width_by_depth = {}
def log_revision(self, revision):
# We need two indents: one per depth and one for the information
# relative to that indent. Most mainline revnos are 5 chars or
# less while dotted revnos are typically 11 chars or less. Once
# calculated, we need to remember the offset for a given depth
# as we might be starting from a dotted revno in the first column
# and we want subsequent mainline revisions to line up.
depth = revision.merge_depth
indent = ' ' * depth
revno_width = self.revno_width_by_depth.get(depth)
if revno_width is None:
if revision.revno.find('.') == -1:
# mainline revno, e.g. 12345
revno_width = 5
else:
# dotted revno, e.g. 12345.10.55
revno_width = 11
self.revno_width_by_depth[depth] = revno_width
offset = ' ' * (revno_width + 1)
to_file = self.to_file
tags = ''
if revision.tags:
tags = ' {%s}' % (', '.join(revision.tags))
to_file.write(indent + "%*s %s\t%s%s%s\n" % (revno_width,
revision.revno, self.short_author(revision.rev),
format_date(revision.rev.timestamp,
revision.rev.timezone or 0,
self.show_timezone, date_fmt="%Y-%m-%d",
show_offset=False),
tags, self.merge_marker(revision)))
self.show_properties(revision.rev, indent+offset)
if self.show_ids:
to_file.write(indent + offset + 'revision-id:%s\n'
% (revision.rev.revision_id,))
if not revision.rev.message:
to_file.write(indent + offset + '(no message)\n')
else:
message = revision.rev.message.rstrip('\r\n')
for l in message.split('\n'):
to_file.write(indent + offset + '%s\n' % (l,))
if revision.delta is not None:
revision.delta.show(to_file, self.show_ids, indent=indent + offset,
short_status=self.delta_format==1)
if revision.diff is not None:
self.show_diff(self.to_exact_file, revision.diff, ' ')
to_file.write('\n')
class LineLogFormatter(LogFormatter):
supports_merge_revisions = True
preferred_levels = 1
supports_tags = True
def __init__(self, *args, **kwargs):
super(LineLogFormatter, self).__init__(*args, **kwargs)
width = terminal_width()
if width is not None:
# we need one extra space for terminals that wrap on last char
width = width - 1
self._max_chars = width
def truncate(self, str, max_len):
if max_len is None or len(str) <= max_len:
return str
return str[:max_len-3] + '...'
def date_string(self, rev):
return format_date(rev.timestamp, rev.timezone or 0,
self.show_timezone, date_fmt="%Y-%m-%d",
show_offset=False)
def message(self, rev):
if not rev.message:
return '(no message)'
else:
return rev.message
def log_revision(self, revision):
indent = ' ' * revision.merge_depth
self.to_file.write(self.log_string(revision.revno, revision.rev,
self._max_chars, revision.tags, indent))
self.to_file.write('\n')
def log_string(self, revno, rev, max_chars, tags=None, prefix=''):
"""Format log info into one string. Truncate tail of string
:param revno: revision number or None.
Revision numbers counts from 1.
:param rev: revision object
:param max_chars: maximum length of resulting string
:param tags: list of tags or None
:param prefix: string to prefix each line
:return: formatted truncated string
"""
out = []
if revno:
# show revno only when is not None
out.append("%s:" % revno)
out.append(self.truncate(self.short_author(rev), 20))
out.append(self.date_string(rev))
if len(rev.parent_ids) > 1:
out.append('[merge]')
if tags:
tag_str = '{%s}' % (', '.join(tags))
out.append(tag_str)
out.append(rev.get_summary())
return self.truncate(prefix + " ".join(out).rstrip('\n'), max_chars)
class GnuChangelogLogFormatter(LogFormatter):
supports_merge_revisions = True
supports_delta = True
def log_revision(self, revision):
"""Log a revision, either merged or not."""
to_file = self.to_file
date_str = format_date(revision.rev.timestamp,
revision.rev.timezone or 0,
self.show_timezone,
date_fmt='%Y-%m-%d',
show_offset=False)
committer_str = revision.rev.committer.replace (' <', ' <')
to_file.write('%s %s\n\n' % (date_str,committer_str))
if revision.delta is not None and revision.delta.has_changed():
for c in revision.delta.added + revision.delta.removed + revision.delta.modified:
path, = c[:1]
to_file.write('\t* %s:\n' % (path,))
for c in revision.delta.renamed:
oldpath,newpath = c[:2]
# For renamed files, show both the old and the new path
to_file.write('\t* %s:\n\t* %s:\n' % (oldpath,newpath))
to_file.write('\n')
if not revision.rev.message:
to_file.write('\tNo commit message\n')
else:
message = revision.rev.message.rstrip('\r\n')
for l in message.split('\n'):
to_file.write('\t%s\n' % (l.lstrip(),))
to_file.write('\n')
def line_log(rev, max_chars):
lf = LineLogFormatter(None)
return lf.log_string(None, rev, max_chars)
class LogFormatterRegistry(registry.Registry):
"""Registry for log formatters"""
def make_formatter(self, name, *args, **kwargs):
"""Construct a formatter from arguments.
:param name: Name of the formatter to construct. 'short', 'long' and
'line' are built-in.
"""
return self.get(name)(*args, **kwargs)
def get_default(self, branch):
return self.get(branch.get_config().log_format())
log_formatter_registry = LogFormatterRegistry()
log_formatter_registry.register('short', ShortLogFormatter,
'Moderately short log format')
log_formatter_registry.register('long', LongLogFormatter,
'Detailed log format')
log_formatter_registry.register('line', LineLogFormatter,
'Log format with one line per revision')
log_formatter_registry.register('gnu-changelog', GnuChangelogLogFormatter,
'Format used by GNU ChangeLog files')
def register_formatter(name, formatter):
log_formatter_registry.register(name, formatter)
def log_formatter(name, *args, **kwargs):
"""Construct a formatter from arguments.
name -- Name of the formatter to construct; currently 'long', 'short' and
'line' are supported.
"""
try:
return log_formatter_registry.make_formatter(name, *args, **kwargs)
except KeyError:
raise errors.BzrCommandError("unknown log formatter: %r" % name)
def show_one_log(revno, rev, delta, verbose, to_file, show_timezone):
# deprecated; for compatibility
lf = LongLogFormatter(to_file=to_file, show_timezone=show_timezone)
lf.show(revno, rev, delta)
def show_changed_revisions(branch, old_rh, new_rh, to_file=None,
log_format='long'):
"""Show the change in revision history comparing the old revision history to the new one.
:param branch: The branch where the revisions exist
:param old_rh: The old revision history
:param new_rh: The new revision history
:param to_file: A file to write the results to. If None, stdout will be used
"""
if to_file is None:
to_file = codecs.getwriter(get_terminal_encoding())(sys.stdout,
errors='replace')
lf = log_formatter(log_format,
show_ids=False,
to_file=to_file,
show_timezone='original')
# This is the first index which is different between
# old and new
base_idx = None
for i in xrange(max(len(new_rh),
len(old_rh))):
if (len(new_rh) <= i
or len(old_rh) <= i
or new_rh[i] != old_rh[i]):
base_idx = i
break
if base_idx is None:
to_file.write('Nothing seems to have changed\n')
return
## TODO: It might be nice to do something like show_log
## and show the merged entries. But since this is the
## removed revisions, it shouldn't be as important
if base_idx < len(old_rh):
to_file.write('*'*60)
to_file.write('\nRemoved Revisions:\n')
for i in range(base_idx, len(old_rh)):
rev = branch.repository.get_revision(old_rh[i])
lr = LogRevision(rev, i+1, 0, None)
lf.log_revision(lr)
to_file.write('*'*60)
to_file.write('\n\n')
if base_idx < len(new_rh):
to_file.write('Added Revisions:\n')
show_log(branch,
lf,
None,
verbose=False,
direction='forward',
start_revision=base_idx+1,
end_revision=len(new_rh),
search=None)
def get_history_change(old_revision_id, new_revision_id, repository):
"""Calculate the uncommon lefthand history between two revisions.
:param old_revision_id: The original revision id.
:param new_revision_id: The new revision id.
:param repository: The repository to use for the calculation.
return old_history, new_history
"""
old_history = []
old_revisions = set()
new_history = []
new_revisions = set()
new_iter = repository.iter_reverse_revision_history(new_revision_id)
old_iter = repository.iter_reverse_revision_history(old_revision_id)
stop_revision = None
do_old = True
do_new = True
while do_new or do_old:
if do_new:
try:
new_revision = new_iter.next()
except StopIteration:
do_new = False
else:
new_history.append(new_revision)
new_revisions.add(new_revision)
if new_revision in old_revisions:
stop_revision = new_revision
break
if do_old:
try:
old_revision = old_iter.next()
except StopIteration:
do_old = False
else:
old_history.append(old_revision)
old_revisions.add(old_revision)
if old_revision in new_revisions:
stop_revision = old_revision
break
new_history.reverse()
old_history.reverse()
if stop_revision is not None:
new_history = new_history[new_history.index(stop_revision) + 1:]
old_history = old_history[old_history.index(stop_revision) + 1:]
return old_history, new_history
def show_branch_change(branch, output, old_revno, old_revision_id):
"""Show the changes made to a branch.
:param branch: The branch to show changes about.
:param output: A file-like object to write changes to.
:param old_revno: The revno of the old tip.
:param old_revision_id: The revision_id of the old tip.
"""
new_revno, new_revision_id = branch.last_revision_info()
old_history, new_history = get_history_change(old_revision_id,
new_revision_id,
branch.repository)
if old_history == [] and new_history == []:
output.write('Nothing seems to have changed\n')
return
log_format = log_formatter_registry.get_default(branch)
lf = log_format(show_ids=False, to_file=output, show_timezone='original')
if old_history != []:
output.write('*'*60)
output.write('\nRemoved Revisions:\n')
show_flat_log(branch.repository, old_history, old_revno, lf)
output.write('*'*60)
output.write('\n\n')
if new_history != []:
output.write('Added Revisions:\n')
start_revno = new_revno - len(new_history) + 1
show_log(branch, lf, None, verbose=False, direction='forward',
start_revision=start_revno,)
def show_flat_log(repository, history, last_revno, lf):
"""Show a simple log of the specified history.
:param repository: The repository to retrieve revisions from.
:param history: A list of revision_ids indicating the lefthand history.
:param last_revno: The revno of the last revision_id in the history.
:param lf: The log formatter to use.
"""
start_revno = last_revno - len(history) + 1
revisions = repository.get_revisions(history)
for i, rev in enumerate(revisions):
lr = LogRevision(rev, i + last_revno, 0, None)
lf.log_revision(lr)
def _get_info_for_log_files(revisionspec_list, file_list):
"""Find file-ids and kinds given a list of files and a revision range.
We search for files at the end of the range. If not found there,
we try the start of the range.
:param revisionspec_list: revision range as parsed on the command line
:param file_list: the list of paths given on the command line;
the first of these can be a branch location or a file path,
the remainder must be file paths
:return: (branch, info_list, start_rev_info, end_rev_info) where
info_list is a list of (relative_path, file_id, kind) tuples where
kind is one of values 'directory', 'file', 'symlink', 'tree-reference'.
branch will be read-locked.
"""
from builtins import _get_revision_range, safe_relpath_files
tree, b, path = bzrdir.BzrDir.open_containing_tree_or_branch(file_list[0])
b.lock_read()
# XXX: It's damn messy converting a list of paths to relative paths when
# those paths might be deleted ones, they might be on a case-insensitive
# filesystem and/or they might be in silly locations (like another branch).
# For example, what should "log bzr://branch/dir/file1 file2" do? (Is
# file2 implicitly in the same dir as file1 or should its directory be
# taken from the current tree somehow?) For now, this solves the common
# case of running log in a nested directory, assuming paths beyond the
# first one haven't been deleted ...
if tree:
relpaths = [path] + safe_relpath_files(tree, file_list[1:])
else:
relpaths = [path] + file_list[1:]
info_list = []
start_rev_info, end_rev_info = _get_revision_range(revisionspec_list, b,
"log")
if relpaths in ([], [u'']):
return b, [], start_rev_info, end_rev_info
if start_rev_info is None and end_rev_info is None:
if tree is None:
tree = b.basis_tree()
tree1 = None
for fp in relpaths:
file_id = tree.path2id(fp)
kind = _get_kind_for_file_id(tree, file_id)
if file_id is None:
# go back to when time began
if tree1 is None:
try:
rev1 = b.get_rev_id(1)
except errors.NoSuchRevision:
# No history at all
file_id = None
kind = None
else:
tree1 = b.repository.revision_tree(rev1)
if tree1:
file_id = tree1.path2id(fp)
kind = _get_kind_for_file_id(tree1, file_id)
info_list.append((fp, file_id, kind))
elif start_rev_info == end_rev_info:
# One revision given - file must exist in it
tree = b.repository.revision_tree(end_rev_info.rev_id)
for fp in relpaths:
file_id = tree.path2id(fp)
kind = _get_kind_for_file_id(tree, file_id)
info_list.append((fp, file_id, kind))
else:
# Revision range given. Get the file-id from the end tree.
# If that fails, try the start tree.
rev_id = end_rev_info.rev_id
if rev_id is None:
tree = b.basis_tree()
else:
tree = b.repository.revision_tree(rev_id)
tree1 = None
for fp in relpaths:
file_id = tree.path2id(fp)
kind = _get_kind_for_file_id(tree, file_id)
if file_id is None:
if tree1 is None:
rev_id = start_rev_info.rev_id
if rev_id is None:
rev1 = b.get_rev_id(1)
tree1 = b.repository.revision_tree(rev1)
else:
tree1 = b.repository.revision_tree(rev_id)
file_id = tree1.path2id(fp)
kind = _get_kind_for_file_id(tree1, file_id)
info_list.append((fp, file_id, kind))
return b, info_list, start_rev_info, end_rev_info
def _get_kind_for_file_id(tree, file_id):
"""Return the kind of a file-id or None if it doesn't exist."""
if file_id is not None:
return tree.kind(file_id)
else:
return None
properties_handler_registry = registry.Registry()
# Use the properties handlers to print out bug information if available
def _bugs_properties_handler(revision):
if revision.properties.has_key('bugs'):
bug_lines = revision.properties['bugs'].split('\n')
bug_rows = [line.split(' ', 1) for line in bug_lines]
fixed_bug_urls = [row[0] for row in bug_rows if
len(row) > 1 and row[1] == 'fixed']
if fixed_bug_urls:
return {'fixes bug(s)': ' '.join(fixed_bug_urls)}
return {}
properties_handler_registry.register('bugs_properties_handler',
_bugs_properties_handler)
# adapters which revision ids to log are filtered. When log is called, the
# log_rev_iterator is adapted through each of these factory methods.
# Plugins are welcome to mutate this list in any way they like - as long
# as the overall behaviour is preserved. At this point there is no extensible
# mechanism for getting parameters to each factory method, and until there is
# this won't be considered a stable api.
log_adapters = [
# core log logic
_make_batch_filter,
# read revision objects
_make_revision_objects,
# filter on log messages
_make_search_filter,
# generate deltas for things we will show
_make_delta_filter
]
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