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# Copyright (C) 2005 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
"""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
* from last to first or (not anymore) from first to last;
the default is "reversed" because it shows the likely most
relevant and interesting information first
* (not yet) in XML format
"""
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.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 show_log(branch,
specific_fileid=None,
show_timezone='original',
verbose=False,
show_ids=False,
to_file=None,
direction='reverse'):
"""Write out human-readable log of commits to this branch.
specific_fileid
If true, list only the commits affecting the specified
file, rather than all commits.
show_timezone
'original' (committer's timezone),
'utc' (universal time), or
'local' (local user's timezone)
verbose
If true show added/changed/deleted/renamed files.
show_ids
If true, show revision and file ids.
to_file
File to send log to; by default stdout.
direction
'reverse' (default) is latest to earliest;
'forward' is earliest to latest.
"""
from osutils import format_date
from errors import BzrCheckError
from diff import compare_trees
from textui import show_status
if to_file == None:
import sys
to_file = sys.stdout
if specific_fileid or verbose:
raise NotImplementedError('sorry, option not implemented at the moment')
which_revs = branch.enum_history(direction)
for revno, revision_id in which_revs:
# TODO: if filename given, check if it's changed; if not
# changed, skip this one
# TODO: if verbose, get a list of changes; if we're running
# forward then the delta is as compared to the previous
# version, otherwise as compared to the *next* version to be
# enumerated; in both cases must treat 0 specially as the
# empty tree.
rev = branch.get_revision(revision_id)
delta = None
show_one_log(revno, rev, delta, show_ids, to_file, show_timezone)
def junk():
precursor = None
if verbose:
from tree import EmptyTree
prev_tree = EmptyTree()
for revno, revision_id in which_revs:
precursor = revision_id
if revision_id != rev.revision_id:
raise BzrCheckError("retrieved wrong revision: %r"
% (revision_id, rev.revision_id))
if verbose:
this_tree = branch.revision_tree(revision_id)
delta = compare_trees(prev_tree, this_tree, want_unchanged=False)
prev_tree = this_tree
else:
delta = None
def show_one_log(revno, rev, delta, show_ids, to_file, show_timezone):
from osutils import format_date
print >>to_file, '-' * 60
print >>to_file, 'revno:', revno
if show_ids:
print >>to_file, 'revision-id:', rev.revision_id
print >>to_file, 'committer:', rev.committer
print >>to_file, 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
show_timezone))
print >>to_file, 'message:'
if not rev.message:
print >>to_file, ' (no message)'
else:
for l in rev.message.split('\n'):
print >>to_file, ' ' + l
if delta != None:
delta.show(to_file, show_ids)
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