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  • Committer: John Arbash Meinel
  • Date: 2009-06-19 19:26:32 UTC
  • mto: This revision was merged to the branch mainline in revision 4466.
  • Revision ID: john@arbash-meinel.com-20090619192632-1a4ntoq61fkhlp2x
Make a note of the 'worst case' for heads.

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commit.py
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# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
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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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# 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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#
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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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#
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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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"""Support for committing in native Git working trees."""
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import stat
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from bzrlib import (
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    osutils,
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    )
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from bzrlib.repository import (
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    CommitBuilder,
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    )
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from dulwich.objects import (
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    Commit,
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    Tree,
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    )
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class GitCommitBuilder(CommitBuilder):
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    def __init__(self, *args, **kwargs):
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        super(GitCommitBuilder, self).__init__(*args, **kwargs)
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        self._trees = {}
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    def _new_tree(self, path):
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        newtree = Tree()
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        # FIXME: Inherit children from the base revision
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        self._trees[path] = newtree
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        return newtree
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    def _add_tree(self, path):
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        if path in self._trees:
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            return self._trees[path]
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        if path == "":
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            return self._new_tree("")
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        dirname, basename = osutils.split(path)
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        t = self._add_tree(dirname)
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        assert isinstance(basename, str)
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        if not basename in t:
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            newtree = self._new_tree(path)
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            t[basename] = (stat.S_IFDIR, newtree.id)
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            return newtree
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        else:
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            return self.repository._git.object_store[t[basename][1]]
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    def _change_blob(self, path, value):
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        assert isinstance(path, str)
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        dirname, basename = osutils.split(path)
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        t = self._add_tree(dirname)
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        t[basename] = value
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    def record_delete(self, path, file_id):
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        dirname, basename = osutils.split(path)
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        t = self._add_tree(dirname)
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        del t[basename]
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    def record_iter_changes(self, workingtree, basis_revid, iter_changes):
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        for (file_id, path, changed_content, versioned, parent, name, kind, 
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             executable) in iter_changes:
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            if kind[1] in ("directory",):
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                if kind[0] in ("file", "symlink"):
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                    self.record_delete(path[0], file_id)
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                continue
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            if kind == "file":
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                mode = stat.S_IFREG
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            else:
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                mode = stat.S_IFLNK
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            if executable:
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                mode |= 0111
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            self._change_blob(path[1].encode("utf-8"), (mode, workingtree.index.get_sha1(path[1].encode("utf-8"))))
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            yield file_id, path, (None, None)
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    def commit(self, message):
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        # FIXME: Eliminate any empty trees recursively
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        # Write any tree objects to disk
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        for path in sorted(self._trees.keys(), reverse=True):
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            self.repository._git.object_store.add_object(self._trees[path])
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        c = Commit()
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        root_tree = self._add_tree("")
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        c.tree = root_tree.id 
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        c.committer = self._committer
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        c.author = self._revprops.get('author', self._committer)
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        c.commit_timestamp = self._timestamp
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        c.author_timestamp = self._timestamp
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        c.commit_timezone = self._timezone
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        c.author_timezone = self._timezone
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        c.message = message.encode("utf-8")
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        self.repository._git.object_store.add_object(c)