1
# Copyright (C) 2005 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
"""Code to show logs of changes.
21
Various flavors of log can be produced:
23
* for one file, or the whole tree, and (not done yet) for
24
files in a given directory
26
* in "verbose" mode with a description of what changed from one
29
* with file-ids and revision-ids shown
31
* from last to first or (not anymore) from first to last;
32
the default is "reversed" because it shows the likely most
33
relevant and interesting information first
35
* (not yet) in XML format
39
from trace import mutter
41
def find_touching_revisions(branch, file_id):
42
"""Yield a description of revisions which affect the file_id.
44
Each returned element is (revno, revision_id, description)
46
This is the list of revisions where the file is either added,
47
modified, renamed or deleted.
49
TODO: Perhaps some way to limit this to only particular revisions,
50
or to traverse a non-mainline set of revisions?
55
for revision_id in branch.revision_history():
56
this_inv = branch.get_revision_inventory(revision_id)
57
if file_id in this_inv:
58
this_ie = this_inv[file_id]
59
this_path = this_inv.id2path(file_id)
61
this_ie = this_path = None
63
# now we know how it was last time, and how it is in this revision.
64
# are those two states effectively the same or not?
66
if not this_ie and not last_ie:
67
# not present in either
69
elif this_ie and not last_ie:
70
yield revno, revision_id, "added " + this_path
71
elif not this_ie and last_ie:
73
yield revno, revision_id, "deleted " + last_path
74
elif this_path != last_path:
75
yield revno, revision_id, ("renamed %s => %s" % (last_path, this_path))
76
elif (this_ie.text_size != last_ie.text_size
77
or this_ie.text_sha1 != last_ie.text_sha1):
78
yield revno, revision_id, "modified " + this_path
88
show_timezone='original',
95
"""Write out human-readable log of commits to this branch.
98
If true, list only the commits affecting the specified
99
file, rather than all commits.
102
'original' (committer's timezone),
103
'utc' (universal time), or
104
'local' (local user's timezone)
107
If true show added/changed/deleted/renamed files.
110
If true, show revision and file ids.
113
File to send log to; by default stdout.
116
'reverse' (default) is latest to earliest;
117
'forward' is earliest to latest.
120
If not None, only show revisions >= start_revision
123
If not None, only show revisions <= end_revision
125
from osutils import format_date
126
from errors import BzrCheckError
127
from textui import show_status
131
mutter('get log for file_id %r' % specific_fileid)
137
which_revs = branch.enum_history(direction)
139
if not (verbose or specific_fileid):
140
# no need to know what changed between revisions
141
with_deltas = deltas_for_log_dummy(branch, which_revs)
142
elif direction == 'reverse':
143
with_deltas = deltas_for_log_reverse(branch, which_revs)
145
raise NotImplementedError("sorry, verbose forward logs not done yet")
147
for revno, rev, delta in with_deltas:
149
if not delta.touches_file_id(specific_fileid):
152
if start_revision is not None and revno < start_revision:
155
if end_revision is not None and revno > end_revision:
159
# although we calculated it, throw it away without display
162
show_one_log(revno, rev, delta, show_ids, to_file, show_timezone)
166
def deltas_for_log_dummy(branch, which_revs):
167
for revno, revision_id in which_revs:
168
yield revno, branch.get_revision(revision_id), None
171
def deltas_for_log_reverse(branch, which_revs):
172
"""Compute deltas for display in reverse log.
174
Given a sequence of (revno, revision_id) pairs, return
177
The delta is from the given revision to the next one in the
178
sequence, which makes sense if the log is being displayed from
181
from tree import EmptyTree
182
from diff import compare_trees
184
last_revno = last_revision_id = last_tree = None
185
for revno, revision_id in which_revs:
186
this_tree = branch.revision_tree(revision_id)
187
this_revision = branch.get_revision(revision_id)
190
yield last_revno, last_revision, compare_trees(this_tree, last_tree, False)
193
last_revision = this_revision
194
last_tree = this_tree
197
this_tree = EmptyTree()
198
yield last_revno, last_revision, compare_trees(this_tree, last_tree, False)
205
from tree import EmptyTree
206
prev_tree = EmptyTree()
207
for revno, revision_id in which_revs:
208
precursor = revision_id
210
if revision_id != rev.revision_id:
211
raise BzrCheckError("retrieved wrong revision: %r"
212
% (revision_id, rev.revision_id))
215
this_tree = branch.revision_tree(revision_id)
216
delta = compare_trees(prev_tree, this_tree, want_unchanged=False)
217
prev_tree = this_tree
223
def show_one_log(revno, rev, delta, show_ids, to_file, show_timezone):
224
from osutils import format_date
226
print >>to_file, '-' * 60
227
print >>to_file, 'revno:', revno
229
print >>to_file, 'revision-id:', rev.revision_id
230
print >>to_file, 'committer:', rev.committer
231
print >>to_file, 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
234
print >>to_file, 'message:'
236
print >>to_file, ' (no message)'
238
for l in rev.message.split('\n'):
239
print >>to_file, ' ' + l
242
delta.show(to_file, show_ids)
added
removed
bzrlib/log.py
