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- Committer: Robey Pointer
- Date: 2007-09-04 00:34:32 UTC
- mfrom: (128.1.41 testing)
- mto: (140.2.1 merge-robey)
- mto: This revision was merged to the branch mainline in revision 142.
- Revision ID: robey@lag.net-20070904003432-0trrxkyy1rbuowe3
merge from mwhudson branch.
- files added:
- loggerhead/history2.py
- files renamed:
- loggerhead/tests/test_upgrade.py => loggerhead/tests/test_corners.py
- files modified:
- loggerhead/controllers/atom_ui.py
added
removed
loggerhead/history2.py
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"""Extract data suitable for web presentation from Bazaar branches.
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The module is the interface between Loggerhead and bzrlib. Other code in
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Loggerhead should not use bzrlib APIs, and functions and methods in this
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module should not return bzrlib data types.
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The core method is `History.getRevisionInfo`. This method is meant to be
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cheap, so you should not worry about calling it multiple times with the same
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argument or calling it just to retreive a subset of the information it
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returns.
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Revisions are described using good old bzrlib revision ids.
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Revision ids, file ids, file names and file paths are always utf-8 encoded 8
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bit strings.
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"""
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class FileDelta(object):
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"""Information about how an inventory entry changed in a revision.
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All attribute names are fairly self explanatory. The ``*_parent`` fields
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are the file id of the parent or ``None`` for the root.
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:ivar file_id:
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:ivar old_path:
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:ivar new_path:
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:ivar old_name:
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:ivar new_name:
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:ivar old_parent:
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:ivar new_parent:
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:ivar old_kind:
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:ivar new_kind:
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:ivar content_change:
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:type content_change: ``bool``
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:ivar execute_change: A boolean reflecting the new state if it changed, or
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``None`` if it did not.
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:type execute_change: ``bool`` or ``None``
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"""
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class FileChanges(object):
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"""Contains information about which files changed in a revision.
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Note that the 'files changed' information is relative to left-most parent
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by default, as in 'bzr log -v'.
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:ivar deltas: A list of `FileDelta` objects.
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:ivar fileset: ``set(d.file_id for d in self.deltas)``, but cached.
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"""
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class RevisionInfo(object):
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"""Contains all the immutable information Loggerhead needs about a
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particular revision.
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:ivar revid: Obvious.
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:ivar date: The date and time this revision was committed.
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:type date: ``datetime.datetime``
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:ivar committer: The committer.
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:type committer: utf-8 encoded ``str``
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:ivar revprops: The branch properties.
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:type revprops: A dictionary mapping ``str``\ s to ``str``\ s (both utf-8
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encoded).
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:ivar message: The commit message of this revision.
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:type message: utf-8 encoded ``str``
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:ivar parents: The list of the revids of the revision's parents.
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"""
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class BranchRevisionInfo(object):
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"""Contains all the mutable information Loggerhead needs about a
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particular revision, and points to the immutable data.
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:ivar revno: The dotted revno of this revision in this branch.
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:type revno: ``str``
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:ivar where_merged: The list of revids that have this revision as a
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parent.
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:ivar info: The corresponding `RevisionInfo`.
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"""
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class FileEntry(object):
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"""An entry in the list returned by `getFileList`.
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:ivar path: The path of the object in the revision passed to
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`getFileList`.
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:ivar fileid: Obvious.
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:ivar kind: one of ``'file'``, ``'executable'``, ``'link'`` or
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``'directory'``.
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:type kind: ``str``
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:ivar last_changed_revid: The revid of the revision in which this path
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last changed. Not that this is recursive,
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i.e. the last_changed_revid for a directory is
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the revid in which the directory or anything
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contained in in changed.x
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:ivar size: The size of this object in this revision in bytes.
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:type size: ``int``
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"""
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class History(object):
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"""Provide the information loggerhead needs about a bzrlib Branch.
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An instance of this class is effectively a wrapper around a
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`bzrlib.branch.Branch` that translates the information provided by bzrlib
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into a form convenient for use in loggerhead.
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:ivar last_revision: The revid of the tip of the branch.
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"""
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@classmethod
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def fromBranch(cls, branch):
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"""Create and initialize a `History` object from a
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`bzrlib.branch.Branch`.
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"""
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def outOfDate(self):
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"""Decide whether this History object is still current.
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At least to start with, an out of date History object should be thrown
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away and a fresh one created.
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"""
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def getRevisionInfo(self, revid):
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"""Find the `BranchRevisionInfo` object for a given revision id.
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This operation is to be thought of as 'cheap', which is to say that
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you should not worry about calling it repeatedly with the same
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argument or about calling it just to retrieve a subset of the
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information it includes.
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:param revid: a revision id.
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:returns: a `BranchRevisionInfo` object or ``None`` if the given
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revision id does not exist in the branch.
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"""
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def getChanges(self, revid, other_revid=None):
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"""Find the `FileChanges` object between two revision.
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:param revid: A revision id.
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:param other_revid: The revision id to compare against. If ``None``
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or not given, compare against the leftmost parent
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of ``revid``.
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:returns: The corresponding `FileChanges` object.
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"""
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# There will need to be some more methods here to allow searching for
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# revisions by date, committer, commit message, etc...
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def getDiff(self, revidA, revidB):
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"""Compute the diff between two revisions.
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Not sure what this will return yet, probably something similar to but
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more structured than the 'chunks' loggerhead already works with.
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"""
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def getDirList(self, fileid, revid):
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"""List the files in the given directory as of the given revision.
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:return: a list of `FileEntry` objects.
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"""
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def getFileAnnotation(self, fileid, revid):
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"""Annotate the given file.
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Not sure what this should return, mostly likely a list of
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(revid-or-None, line contents) (and ``None`` for a binary file).
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"""
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def getFileText(self, fileid, revid):
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"""Fetch the contents of a file at a particular revision.
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:returns: (filename, data)
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:rtype: ``(str, str)``
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"""
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def getBundle(self, revid, compare_revid=None):
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"""Return a bundle for this revision.
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Relative to compare_revid, or left-most parent if this is not supplied
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or None.
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:return: A bundle (in a string).
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"""
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def normalizeRevivionSpec(self, revspec):
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"""Convert a revid or revno or 'head' to a revid.
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:returns: a revision id.
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"""
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def normalizeFileArguments(self, revid, fileid, filepath):
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"""Handle various ways of specifying a file in the branch.
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One of ``fileid`` and ``filepath`` should be None.
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:returns: (fileid, filepath)
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"""
Loggerhead is a web-based interface for Breezy
Version: 2.0.1