comparison mercurial/metadata.py @ 45611:e5578dbe36cb

changing-files: add the ability to track merged files too

The set of merged files is used when doing changeset centric copy tracing (cf
`is_merged` in `mercurial/copies.py`. So tracking (and persisting) this set will
be useful. We start with adding the attribute on the new object.

Differential Revision: https://phab.mercurial-scm.org/D9087

45610:496537c9c1b4

    """A class recording the changes made to a file by a changeset

    Actions performed on files are gathered into 3 sets:

    - added:   files actively added in the changeset.
    - removed: files removed in the revision
    - touched: files affected by the merge

    and copies information is held by 2 mappings

    def __init__(
        self,
        touched=None,
        added=None,
        removed=None,
        p1_copies=None,
        p2_copies=None,
    ):
        self._added = set(() if added is None else added)
        self._removed = set(() if removed is None else removed)
        self._touched = set(() if touched is None else touched)
        self._touched.update(self._added)
        self._touched.update(self._removed)
        self._p1_copies = dict(() if p1_copies is None else p1_copies)
        self._p2_copies = dict(() if p2_copies is None else p2_copies)

    def __eq__(self, other):
        return (
            self.added == other.added
            and self.removed == other.removed
            and self.touched == other.touched
            and self.copied_from_p1 == other.copied_from_p1
            and self.copied_from_p2 == other.copied_from_p2
        )

        self._touched.add(filename)

    def update_added(self, filenames):
        for f in filenames:
            self.mark_added(f)

    @property
    def removed(self):
        """files actively removed by the changeset

45611:e5578dbe36cb

    """A class recording the changes made to a file by a changeset

    Actions performed on files are gathered into 3 sets:

    - added:   files actively added in the changeset.
    - merged:  files whose history got merged
    - removed: files removed in the revision
    - touched: files affected by the merge

    and copies information is held by 2 mappings

    def __init__(
        self,
        touched=None,
        added=None,
        removed=None,
        merged=None,
        p1_copies=None,
        p2_copies=None,
    ):
        self._added = set(() if added is None else added)
        self._merged = set(() if merged is None else merged)
        self._removed = set(() if removed is None else removed)
        self._touched = set(() if touched is None else touched)
        self._touched.update(self._added)
        self._touched.update(self._merged)
        self._touched.update(self._removed)
        self._p1_copies = dict(() if p1_copies is None else p1_copies)
        self._p2_copies = dict(() if p2_copies is None else p2_copies)

    def __eq__(self, other):
        return (
            self.added == other.added
            and self.merged == other.merged
            and self.removed == other.removed
            and self.touched == other.touched
            and self.copied_from_p1 == other.copied_from_p1
            and self.copied_from_p2 == other.copied_from_p2
        )

        self._touched.add(filename)

    def update_added(self, filenames):
        for f in filenames:
            self.mark_added(f)

    @property
    def merged(self):
        """files actively merged during a merge

        Any modified files which had modification on both size that needed merging.

        In this case a new filenode was created and it has two parents.
        """
        return frozenset(self._merged)

    def mark_merged(self, filename):
        self._merged.add(filename)
        self._touched.add(filename)

    def update_merged(self, filenames):
        for f in filenames:
            self.mark_merged(f)

    @property
    def removed(self):
        """files actively removed by the changeset