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Viewing changes to patchsource.py

  • Committer: Aaron Bentley
  • Date: 2006-03-24 14:06:54 UTC
  • Revision ID: abentley@panoramicfeedback.com-20060324140654-cc9a6b0e8bd1f60a
Improved cbranch docs

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patchsource.py
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from bzrlib import patches
 
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import patches
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class PatchSource(object):
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    def __iter__(self):
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    def readlines(self):
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        raise NotImplementedError()
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    def readpatches(self):
 
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    def readhunks(self):
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        return patches.parse_patches(self.readlines())
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class FilePatchSource(PatchSource):
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class BzrPatchSource(PatchSource):
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    def __init__(self, revision=None, file_list=None):
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        from bzrlib.builtins import tree_files
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        self.tree, self.file_list = tree_files(file_list)
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        self.base = self.tree.basedir
 
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        self.file_list = file_list
 
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        if file_list is not None and len(file_list) > 0:
 
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            location = file_list[0]
 
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        else:
 
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            location = '.'
 
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        # Hack to cope with 0.7 and 0.8 bzr
 
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        try:
 
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            from bzrlib.workingtree import WorkingTree
 
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            self.wt = WorkingTree.open_containing(location)[0]
 
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            self.base = self.wt.basedir
 
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            self.__readlines = self._v08_readlines
 
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        except ImportError:
 
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            from bzrlib.branch import Branch
 
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            self.branch = Branch.open_containing(location)[0]
 
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            self.base = self.branch.base
 
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            self.__readlines = self._v07_readlines
 
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        self.revision = revision
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        # Hacks to cope with v0.7 and v0.8 of bzr
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        if self.revision is None:
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            if hasattr(self.tree, 'basis_tree'):
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                self.old_tree = self.tree.basis_tree()
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            else:
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                self.old_tree = self.tree.branch.basis_tree()
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        else:
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            revision_id = self.revision.in_store(self.tree.branch).rev_id
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            if hasattr(self.tree.branch, 'repository'):
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                self.old_tree = self.tree.branch.repository.revision_tree(revision_id)
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            else:
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                self.old_tree = self.tree.branch.revision_tree(revision_id)
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        PatchSource.__init__(self)
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    def readlines(self):
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        from bzrlib.diff import show_diff_trees
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        from StringIO import StringIO
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        f = StringIO()
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        show_diff_trees(self.old_tree, self.tree, f, self.file_list,
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                        old_label='', new_label='')
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        self.__readlines(f)
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        f.seek(0)
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        return f.readlines()
 
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    def _v07_readlines(self, output):
 
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        from bzrlib.diff import show_diff
 
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        show_diff(self.branch, self.revision,
 
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            specific_files=self.file_list, output=output)
 
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    def _v08_readlines(self, output):
 
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        import sys
 
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        from bzrlib.diff import diff_cmd_helper
 
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        tmp = sys.stdout
 
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        sys.stdout = output
 
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        # FIXME diff_cmd_helper() should take an output parameter
 
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        diff_cmd_helper(self.wt, self.file_list, external_diff_options=None,
 
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                        old_revision_spec=self.revision)
 
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        sys.stdout = tmp