/brz/remove-bazaar

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Try to import nothing other than __init__ when not opening git repositories.

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mapping.py
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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2008-2009 Jelmer Vernooij <jelmer@samba.org>
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# Copyright (C) 2008 John Carr
 
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# Copyright (C) 2007-2008 Canonical Ltd
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#
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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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"""Converters, etc for going between Bazaar and Git ids."""
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from bzrlib import (
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    errors,
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    foreign,
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    urlutils,
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    )
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from bzrlib.inventory import (
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    ROOT_ID,
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    )
 
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from bzrlib import errors, foreign
 
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from bzrlib.inventory import ROOT_ID
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from bzrlib.foreign import (
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    ForeignVcs, 
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    VcsMappingRegistry, 
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    ForeignRevision,
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    )
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from bzrlib.plugins.git.foreign import (
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    escape_commit_message,
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    )
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        ForeignVcs, 
 
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        VcsMappingRegistry, 
 
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        ForeignRevision,
 
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        )
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def escape_file_id(file_id):
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    return file_id.replace('_', '__').replace(' ', '_s')
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        return bzr_rev_id[len(cls.revid_prefix)+1:], cls()
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    def generate_file_id(self, path):
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        # Git paths are just bytestrings
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        # We must just hope they are valid UTF-8..
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        assert isinstance(path, str)
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        if path == "":
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            return ROOT_ID
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        return escape_file_id(path)
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77
 
    def parse_file_id(self, file_id):
78
 
        if file_id == ROOT_ID:
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            return ""
80
 
        return unescape_file_id(file_id)
 
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        return escape_file_id(path.encode('utf-8'))
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    def import_commit(self, commit):
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        """Convert a git commit to a bzr revision.
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            raise AssertionError("Commit object can't be None")
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        rev = ForeignRevision(commit.id, self, self.revision_id_foreign_to_bzr(commit.id))
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        rev.parent_ids = tuple([self.revision_id_foreign_to_bzr(p) for p in commit.parents])
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        rev.message = escape_commit_message(commit.message.decode("utf-8", "replace"))
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        rev.committer = escape_commit_message(str(commit.committer).decode("utf-8", "replace"))
 
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        rev.message = commit.message.decode("utf-8", "replace")
 
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        rev.committer = str(commit.committer).decode("utf-8", "replace")
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        if commit.committer != commit.author:
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            rev.properties['author'] = escape_commit_message(str(commit.author).decode("utf-8", "replace"))
 
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            rev.properties['author'] = str(commit.author).decode("utf-8", "replace")
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        rev.timestamp = commit.commit_time
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        rev.timezone = 0
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        return rev
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    def export_commit(self, rev, tree_sha):
 
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        """Turn a Bazaar revision in to a Git commit
 
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        :param tree_sha: HACK parameter (until we can retrieve this from the mapping)
 
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        :return dulwich.objects.Commit represent the revision:
 
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        """
 
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        from dulwich.objects import Commit
 
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        commit = Commit()
 
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        commit._tree = tree_sha
 
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        for p in rev.parent_ids:
 
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            commit._parents.append(self.revision_id_bzr_to_foreign(p))
 
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        commit._message = rev.message
 
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        commit._committer = rev.committer
 
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        if 'author' in rev.properties:
 
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            commit._author = rev.properties['author']
 
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        else:
 
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            commit._author = rev.committer
 
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        commit._commit_time = long(rev.timestamp)
 
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        commit.serialize()
 
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        return commit
 
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class BzrGitMappingv1(BzrGitMapping):
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    revid_prefix = 'git-v1'
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foreign_git = ForeignGit()
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default_mapping = BzrGitMappingv1()
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def inventory_to_tree_and_blobs(repo, mapping, revision_id):
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    from dulwich.objects import Tree, Blob
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    from bzrlib.inventory import InventoryDirectory, InventoryFile
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    import stat
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    stack = []
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    cur = ""
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    tree = Tree()
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152
 
    inv = repo.get_inventory(revision_id)
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    # stack contains the set of trees that we haven't 
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    # finished constructing
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    for path, entry in inv.iter_entries():
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        while stack and not path.startswith(cur):
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            tree.serialize()
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            sha = tree.id
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            yield sha, tree, cur
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            t = (stat.S_IFDIR, urlutils.basename(cur).encode('UTF-8'), sha)
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            cur, tree = stack.pop()
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            tree.add(*t)
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        if type(entry) == InventoryDirectory:
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            stack.append((cur, tree))
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            cur = path
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            tree = Tree()
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        if type(entry) == InventoryFile:
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            #FIXME: We can make potentially make this Lazy to avoid shaing lots of stuff
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            # and having all these objects in memory at once
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            blob = Blob()
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            blob._text = repo.texts.get_record_stream([(entry.file_id, entry.revision)], 'unordered', True).next().get_bytes_as('fulltext')
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            sha = blob.id
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            yield sha, blob, path
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            name = urlutils.basename(path).encode("utf-8")
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            mode = stat.S_IFREG | 0644
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            if entry.executable:
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                mode |= 0111
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            tree.add(mode, name, sha)
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    while len(stack) > 1:
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        tree.serialize()
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        sha = tree.id
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        yield sha, tree, cur
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        t = (stat.S_IFDIR, urlutils.basename(cur).encode('UTF-8'), sha)
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        cur, tree = stack.pop()
190
 
        tree.add(*t)
191
 
 
192
 
    tree.serialize()
193
 
    yield tree.id, tree, cur
194
 
 
195
 
 
196
 
def revision_to_commit(rev, tree_sha, parent_lookup):
197
 
    """Turn a Bazaar revision in to a Git commit
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199
 
    :param tree_sha: Tree sha for the commit
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    :param parent_lookup: Function for looking up the GIT sha equiv of a bzr revision
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    :return dulwich.objects.Commit represent the revision:
202
 
    """
203
 
    from dulwich.objects import Commit
204
 
    commit = Commit()
205
 
    commit._tree = tree_sha
206
 
    for p in rev.parent_ids:
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        git_p = parent_lookup(p)
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        if git_p is not None:
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            assert len(git_p) == 40, "unexpected length for %r" % git_p
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            commit._parents.append(git_p)
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    commit._message = rev.message.encode("utf-8")
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    commit._committer = rev.committer.encode("utf-8")
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    commit._author = rev.get_apparent_authors()[0].encode("utf-8")
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    commit._commit_time = long(rev.timestamp)
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    commit.serialize()
216
 
    return commit