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- Committer: Martin Pool
- Date: 2005-05-19 08:31:06 UTC
- Revision ID: mbp@sourcefrog.net-20050519083106-ebe71562d3bda4a7
- fix typo
- files added:
- bzrlib/atomicfile.py
- patches
- files removed:
- bzrlib/tests.py
- files modified:
- .bzrignore
added
removed
bzrlib/log.py
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# Copyright (C) 2005 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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"""Code to show logs of changes.
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Various flavors of log can be produced:
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* for one file, or the whole tree, and (not done yet) for
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files in a given directory
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* in "verbose" mode with a description of what changed from one
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version to the next
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* with file-ids and revision-ids shown
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* from last to first or (not anymore) from first to last;
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the default is "reversed" because it shows the likely most
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relevant and interesting information first
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* (not yet) in XML format
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"""
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from trace import mutter
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def find_touching_revisions(branch, file_id):
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"""Yield a description of revisions which affect the file_id.
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Each returned element is (revno, revision_id, description)
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This is the list of revisions where the file is either added,
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modified, renamed or deleted.
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TODO: Perhaps some way to limit this to only particular revisions,
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or to traverse a non-mainline set of revisions?
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"""
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last_ie = None
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last_path = None
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revno = 1
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for revision_id in branch.revision_history():
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this_inv = branch.get_revision_inventory(revision_id)
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if file_id in this_inv:
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this_ie = this_inv[file_id]
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this_path = this_inv.id2path(file_id)
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else:
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this_ie = this_path = None
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# now we know how it was last time, and how it is in this revision.
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# are those two states effectively the same or not?
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if not this_ie and not last_ie:
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# not present in either
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pass
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elif this_ie and not last_ie:
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yield revno, revision_id, "added " + this_path
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elif not this_ie and last_ie:
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# deleted here
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yield revno, revision_id, "deleted " + last_path
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elif this_path != last_path:
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yield revno, revision_id, ("renamed %s => %s" % (last_path, this_path))
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elif (this_ie.text_size != last_ie.text_size
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or this_ie.text_sha1 != last_ie.text_sha1):
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yield revno, revision_id, "modified " + this_path
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last_ie = this_ie
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last_path = this_path
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revno += 1
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def show_log(branch,
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specific_fileid=None,
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show_timezone='original',
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verbose=False,
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show_ids=False,
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to_file=None,
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direction='reverse'):
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"""Write out human-readable log of commits to this branch.
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specific_fileid
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If true, list only the commits affecting the specified
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file, rather than all commits.
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show_timezone
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'original' (committer's timezone),
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'utc' (universal time), or
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'local' (local user's timezone)
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verbose
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If true show added/changed/deleted/renamed files.
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show_ids
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If true, show revision and file ids.
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to_file
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File to send log to; by default stdout.
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direction
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'reverse' (default) is latest to earliest;
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'forward' is earliest to latest.
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"""
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from osutils import format_date
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from errors import BzrCheckError
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from textui import show_status
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if specific_fileid:
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mutter('get log for file_id %r' % specific_fileid)
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if to_file == None:
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import sys
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to_file = sys.stdout
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which_revs = branch.enum_history(direction)
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if not (verbose or specific_fileid):
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# no need to know what changed between revisions
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with_deltas = deltas_for_log_dummy(branch, which_revs)
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elif direction == 'reverse':
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with_deltas = deltas_for_log_reverse(branch, which_revs)
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else:
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raise NotImplementedError("sorry, verbose forward logs not done yet")
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for revno, rev, delta in with_deltas:
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if specific_fileid:
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if not delta.touches_file_id(specific_fileid):
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continue
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if not verbose:
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# although we calculated it, throw it away without display
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delta = None
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show_one_log(revno, rev, delta, show_ids, to_file, show_timezone)
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def deltas_for_log_dummy(branch, which_revs):
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for revno, revision_id in which_revs:
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yield revno, branch.get_revision(revision_id), None
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def deltas_for_log_reverse(branch, which_revs):
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"""Compute deltas for display in reverse log.
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Given a sequence of (revno, revision_id) pairs, return
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(revno, rev, delta).
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The delta is from the given revision to the next one in the
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sequence, which makes sense if the log is being displayed from
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newest to oldest.
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"""
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from tree import EmptyTree
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from diff import compare_trees
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last_revno = last_revision_id = last_tree = None
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for revno, revision_id in which_revs:
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this_tree = branch.revision_tree(revision_id)
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this_revision = branch.get_revision(revision_id)
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if last_revno:
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yield last_revno, last_revision, compare_trees(this_tree, last_tree, False)
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last_revno = revno
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last_revision = this_revision
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last_tree = this_tree
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if last_revno:
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this_tree = EmptyTree()
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yield last_revno, last_revision, compare_trees(this_tree, last_tree, False)
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def junk():
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precursor = None
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if verbose:
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from tree import EmptyTree
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prev_tree = EmptyTree()
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for revno, revision_id in which_revs:
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precursor = revision_id
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if revision_id != rev.revision_id:
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raise BzrCheckError("retrieved wrong revision: %r"
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% (revision_id, rev.revision_id))
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if verbose:
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this_tree = branch.revision_tree(revision_id)
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delta = compare_trees(prev_tree, this_tree, want_unchanged=False)
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prev_tree = this_tree
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else:
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delta = None
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def show_one_log(revno, rev, delta, show_ids, to_file, show_timezone):
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from osutils import format_date
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print >>to_file, '-' * 60
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print >>to_file, 'revno:', revno
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if show_ids:
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print >>to_file, 'revision-id:', rev.revision_id
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print >>to_file, 'committer:', rev.committer
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print >>to_file, 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
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show_timezone))
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print >>to_file, 'message:'
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if not rev.message:
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print >>to_file, ' (no message)'
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else:
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for l in rev.message.split('\n'):
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print >>to_file, ' ' + l
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if delta != None:
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delta.show(to_file, show_ids)
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