comparison mercurial/dirstatemap.py @ 48123:771c90807a2b

dirstatemap: arrange methods by category

The dirstatemap code cover various aspects, it grow a bit messy over the years. So we shuffle the code around into some documented categories.

This will help use to clean up the code.

No code was changed in this changeset, only code move.

Differential Revision: https://phab.mercurial-scm.org/D11568

48122:bbd924a36a6e

        if self._use_dirstate_v2:
            msg = "Dirstate V2 not supportedi"
            msg += "(should have detected unsupported requirement)"
            raise error.ProgrammingError(msg)

    @propertycache
    def _map(self):
        self._map = {}
        self.read()
        return self._map

        for (filename, item) in self.items():
            yield (filename, item.state, item.mode, item.size, item.mtime)

    def keys(self):
        return self._map.keys()

    def _dirs_incr(self, filename, old_entry=None):
        """incremente the dirstate counter if applicable"""
        if (
            old_entry is None or old_entry.removed

        elif remove_variant and "_alldirs" in self.__dict__:
            self._alldirs.addpath(filename)
        if "filefoldmap" in self.__dict__:
            normed = util.normcase(filename)
            self.filefoldmap.pop(normed, None)

    def set_possibly_dirty(self, filename):
        """record that the current state of the file on disk is unknown"""
        self[filename].set_possibly_dirty()

                self._map.pop(f, None)
            else:
                entry.set_untracked()
            return True

    @propertycache
    def filefoldmap(self):
        """Returns a dictionary mapping normalized case paths to their
        non-normalized versions.
        """
        try:
            makefilefoldmap = parsers.make_file_foldmap
        except AttributeError:
            pass
        else:
            return makefilefoldmap(
                self._map, util.normcasespec, util.normcasefallback
            )

        f = {}
        normcase = util.normcase
        for name, s in pycompat.iteritems(self._map):
            if not s.removed:
                f[normcase(name)] = name
        f[b'.'] = b'.'  # prevents useless util.fspath() invocation
        return f

    def hastrackeddir(self, d):
        """
        Returns True if the dirstate contains a tracked (not removed) file
        in this directory.
        """
        return d in self._dirs

    def hasdir(self, d):
        """
        Returns True if the dirstate contains a file (tracked or removed)
        in this directory.
        """
        return d in self._alldirs

    @propertycache
    def _dirs(self):
        return pathutil.dirs(self._map, only_tracked=True)

    @propertycache
    def _alldirs(self):
        return pathutil.dirs(self._map)

    def _opendirstatefile(self):
        fp, mode = txnutil.trypending(self._root, self._opener, self._filename)
        if self._pendingmode is not None and self._pendingmode != mode:
            fp.close()
            raise error.Abort(
                _(b'working directory state may be changed parallelly')
            )
        self._pendingmode = mode
        return fp

    def parents(self):
        if not self._parents:
            try:
                fp = self._opendirstatefile()
                st = fp.read(2 * self._nodelen)
                fp.close()
            except IOError as err:
                if err.errno != errno.ENOENT:
                    raise
                # File doesn't exist, so the current state is empty
                st = b''

            l = len(st)
            if l == self._nodelen * 2:
                self._parents = (
                    st[: self._nodelen],
                    st[self._nodelen : 2 * self._nodelen],
                )
            elif l == 0:
                self._parents = (
                    self._nodeconstants.nullid,
                    self._nodeconstants.nullid,
                )
            else:
                raise error.Abort(
                    _(b'working directory state appears damaged!')
                )

        return self._parents

    def setparents(self, p1, p2, fold_p2=False):
        self._parents = (p1, p2)
        self._dirtyparents = True
        copies = {}
        if fold_p2:
            for f, s in pycompat.iteritems(self._map):
                # Discard "merged" markers when moving away from a merge state
                if s.merged or s.from_p2:
                    source = self.copymap.pop(f, None)
                    if source:
                        copies[f] = source
                    s.drop_merge_data()
        return copies

    def read(self):
        # ignore HG_PENDING because identity is used only for writing
        self.identity = util.filestat.frompath(
            self._opener.join(self._filename)
        )

        try:
            fp = self._opendirstatefile()
            try:
                st = fp.read()
            finally:
                fp.close()
        except IOError as err:
            if err.errno != errno.ENOENT:
                raise
            return
        if not st:
            return

        if util.safehasattr(parsers, b'dict_new_presized'):
            # Make an estimate of the number of files in the dirstate based on
            # its size. This trades wasting some memory for avoiding costly
            # resizes. Each entry have a prefix of 17 bytes followed by one or
            # two path names. Studies on various large-scale real-world repositories
            # found 54 bytes a reasonable upper limit for the average path names.
            # Copy entries are ignored for the sake of this estimate.
            self._map = parsers.dict_new_presized(len(st) // 71)

        # Python's garbage collector triggers a GC each time a certain number
        # of container objects (the number being defined by
        # gc.get_threshold()) are allocated. parse_dirstate creates a tuple
        # for each file in the dirstate. The C version then immediately marks
        # them as not to be tracked by the collector. However, this has no
        # effect on when GCs are triggered, only on what objects the GC looks
        # into. This means that O(number of files) GCs are unavoidable.
        # Depending on when in the process's lifetime the dirstate is parsed,
        # this can get very expensive. As a workaround, disable GC while
        # parsing the dirstate.
        #
        # (we cannot decorate the function directly since it is in a C module)
        parse_dirstate = util.nogc(parsers.parse_dirstate)
        p = parse_dirstate(self._map, self.copymap, st)
        if not self._dirtyparents:
            self.setparents(*p)

        # Avoid excess attribute lookups by fast pathing certain checks
        self.__contains__ = self._map.__contains__
        self.__getitem__ = self._map.__getitem__
        self.get = self._map.get

    def write(self, _tr, st, now):
        st.write(
            parsers.pack_dirstate(self._map, self.copymap, self.parents(), now)
        )
        st.close()
        self._dirtyparents = False

    @propertycache
    def identity(self):
        self._map
        return self.identity

    @propertycache
    def dirfoldmap(self):
        f = {}
        normcase = util.normcase
        for name in self._dirs:
            f[normcase(name)] = name
        return f


if rustmod is not None:

    class dirstatemap(_dirstatemapcommon):
        def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2):
            super(dirstatemap, self).__init__(
                ui, opener, root, nodeconstants, use_dirstate_v2
            )
            self._docket = None

        def addfile(
            self,
            f,
            mode=0,
            size=None,
            mtime=None,
            added=False,
            merged=False,
            from_p2=False,
            possibly_dirty=False,
        ):
            if added:
                assert not possibly_dirty
                assert not from_p2
                item = DirstateItem.new_added()
            elif merged:
                assert not possibly_dirty
                assert not from_p2
                item = DirstateItem.new_merged()
            elif from_p2:
                assert not possibly_dirty
                item = DirstateItem.new_from_p2()
            elif possibly_dirty:
                item = DirstateItem.new_possibly_dirty()
            else:
                assert size is not None
                assert mtime is not None
                size = size & rangemask
                mtime = mtime & rangemask
                item = DirstateItem.new_normal(mode, size, mtime)
            self._map.addfile(f, item)
            if added:
                self.copymap.pop(f, None)

        def reset_state(
            self,
            filename,
            wc_tracked=False,
            p1_tracked=False,
            p2_tracked=False,
            merged=False,
            clean_p1=False,
            clean_p2=False,
            possibly_dirty=False,
            parentfiledata=None,
        ):
            """Set a entry to a given state, disregarding all previous state

            This is to be used by the part of the dirstate API dedicated to
            adjusting the dirstate after a update/merge.

            note: calling this might result to no entry existing at all if the
            dirstate map does not see any point at having one for this file
            anymore.
            """
            if merged and (clean_p1 or clean_p2):
                msg = (
                    b'`merged` argument incompatible with `clean_p1`/`clean_p2`'
                )
                raise error.ProgrammingError(msg)
            # copy information are now outdated
            # (maybe new information should be in directly passed to this function)
            self.copymap.pop(filename, None)

            if not (p1_tracked or p2_tracked or wc_tracked):
                self._map.drop_item_and_copy_source(filename)
            elif merged:
                # XXX might be merged and removed ?
                entry = self.get(filename)
                if entry is not None and entry.tracked:
                    # XXX mostly replicate dirstate.other parent.  We should get
                    # the higher layer to pass us more reliable data where `merged`
                    # actually mean merged. Dropping the else clause will show
                    # failure in `test-graft.t`
                    self.addfile(filename, merged=True)
                else:
                    self.addfile(filename, from_p2=True)
            elif not (p1_tracked or p2_tracked) and wc_tracked:
                self.addfile(
                    filename, added=True, possibly_dirty=possibly_dirty
                )
            elif (p1_tracked or p2_tracked) and not wc_tracked:
                # XXX might be merged and removed ?
                self[filename] = DirstateItem.from_v1_data(b'r', 0, 0, 0)
            elif clean_p2 and wc_tracked:
                if p1_tracked or self.get(filename) is not None:
                    # XXX the `self.get` call is catching some case in
                    # `test-merge-remove.t` where the file is tracked in p1, the
                    # p1_tracked argument is False.
                    #
                    # In addition, this seems to be a case where the file is marked
                    # as merged without actually being the result of a merge
                    # action. So thing are not ideal here.
                    self.addfile(filename, merged=True)
                else:
                    self.addfile(filename, from_p2=True)
            elif not p1_tracked and p2_tracked and wc_tracked:
                self.addfile(
                    filename, from_p2=True, possibly_dirty=possibly_dirty
                )
            elif possibly_dirty:
                self.addfile(filename, possibly_dirty=possibly_dirty)
            elif wc_tracked:
                # this is a "normal" file
                if parentfiledata is None:
                    msg = b'failed to pass parentfiledata for a normal file: %s'
                    msg %= filename
                    raise error.ProgrammingError(msg)
                mode, size, mtime = parentfiledata
                self.addfile(filename, mode=mode, size=size, mtime=mtime)
            else:
                assert False, 'unreachable'

        def set_tracked(self, filename):
            new = False
            entry = self.get(filename)
            if entry is None:
                self.addfile(filename, added=True)
                new = True
            elif not entry.tracked:
                entry.set_tracked()
                self._map.set_dirstate_item(filename, entry)
                new = True
            else:
                # XXX This is probably overkill for more case, but we need this to
                # fully replace the `normallookup` call with `set_tracked` one.
                # Consider smoothing this in the future.
                self.set_possibly_dirty(filename)
            return new

        def set_untracked(self, f):
            """Mark a file as no longer tracked in the dirstate map"""
            # in merge is only trigger more logic, so it "fine" to pass it.
            #
            # the inner rust dirstate map code need to be adjusted once the API
            # for dirstate/dirstatemap/DirstateItem is a bit more settled
            entry = self.get(f)
            if entry is None:
                return False
            else:
                if entry.added:
                    self._map.drop_item_and_copy_source(f)
                else:
                    self._map.removefile(f, in_merge=True)
                return True

        def removefile(self, *args, **kwargs):
            return self._map.removefile(*args, **kwargs)

        @property
        def copymap(self):
            return self._map.copymap()

            util.clearcachedproperty(self, b"dirfoldmap")

        def items(self):
            return self._map.items()

        def keys(self):
            return iter(self._map)

        # forward for python2,3 compat
        iteritems = items

        def _opendirstatefile(self):
            fp, mode = txnutil.trypending(
                self._root, self._opener, self._filename
            )
            if self._pendingmode is not None and self._pendingmode != mode:
                fp.close()
                raise error.Abort(
                    _(b'working directory state may be changed parallelly')
                )
            self._pendingmode = mode
            return fp

        def _readdirstatefile(self, size=-1):
            try:
                with self._opendirstatefile() as fp:
                    return fp.read(size)
            except IOError as err:
                if err.errno != errno.ENOENT:
                    raise
                # File doesn't exist, so the current state is empty
                return b''

        def setparents(self, p1, p2, fold_p2=False):
            self._parents = (p1, p2)
            self._dirtyparents = True
            copies = {}

                            _(b'working directory state appears damaged!')
                        )

            return self._parents

        @property
        def docket(self):
            if not self._docket:
                if not self._use_dirstate_v2:
                    raise error.ProgrammingError(
                        b'dirstate only has a docket in v2 format'
                    )
                self._docket = docketmod.DirstateDocket.parse(
                    self._readdirstatefile(), self._nodeconstants
                )
            return self._docket

        @propertycache
        def _map(self):
            """
            Fills the Dirstatemap when called.
            """
            # ignore HG_PENDING because identity is used only for writing
            self.identity = util.filestat.frompath(
                self._opener.join(self._filename)
            )

            if self._use_dirstate_v2:
                if self.docket.uuid:
                    # TODO: use mmap when possible
                    data = self._opener.read(self.docket.data_filename())
                else:
                    data = b''
                self._map = rustmod.DirstateMap.new_v2(
                    data, self.docket.data_size, self.docket.tree_metadata
                )
                parents = self.docket.parents
            else:
                self._map, parents = rustmod.DirstateMap.new_v1(
                    self._readdirstatefile()
                )

            if parents and not self._dirtyparents:
                self.setparents(*parents)

            self.__contains__ = self._map.__contains__
            self.__getitem__ = self._map.__getitem__
            self.get = self._map.get
            return self._map

        def write(self, tr, st, now):
            if not self._use_dirstate_v2:
                p1, p2 = self.parents()
                packed = self._map.write_v1(p1, p2, now)

                self._docket = new_docket
            # Reload from the newly-written file
            util.clearcachedproperty(self, b"_map")
            self._dirtyparents = False

        @propertycache
        def filefoldmap(self):
            """Returns a dictionary mapping normalized case paths to their
            non-normalized versions.
            """

        def hastrackeddir(self, d):
            return self._map.hastrackeddir(d)

        def hasdir(self, d):
            return self._map.hasdir(d)

        @propertycache
        def identity(self):
            self._map
            return self.identity

        @propertycache
        def dirfoldmap(self):
            f = {}
            normcase = util.normcase
            for name in self._map.tracked_dirs():
                f[normcase(name)] = name
            return f

        def set_possibly_dirty(self, filename):
            """record that the current state of the file on disk is unknown"""
            entry = self[filename]
            entry.set_possibly_dirty()

            self._map.copymap().pop(filename, None)

        def __setitem__(self, key, value):
            assert isinstance(value, DirstateItem)
            self._map.set_dirstate_item(key, value)

48123:771c90807a2b

        if self._use_dirstate_v2:
            msg = "Dirstate V2 not supportedi"
            msg += "(should have detected unsupported requirement)"
            raise error.ProgrammingError(msg)

    ### Core data storage and access

    @propertycache
    def _map(self):
        self._map = {}
        self.read()
        return self._map

        for (filename, item) in self.items():
            yield (filename, item.state, item.mode, item.size, item.mtime)

    def keys(self):
        return self._map.keys()

    ### reading/setting parents

    def parents(self):
        if not self._parents:
            try:
                fp = self._opendirstatefile()
                st = fp.read(2 * self._nodelen)
                fp.close()
            except IOError as err:
                if err.errno != errno.ENOENT:
                    raise
                # File doesn't exist, so the current state is empty
                st = b''

            l = len(st)
            if l == self._nodelen * 2:
                self._parents = (
                    st[: self._nodelen],
                    st[self._nodelen : 2 * self._nodelen],
                )
            elif l == 0:
                self._parents = (
                    self._nodeconstants.nullid,
                    self._nodeconstants.nullid,
                )
            else:
                raise error.Abort(
                    _(b'working directory state appears damaged!')
                )

        return self._parents

    def setparents(self, p1, p2, fold_p2=False):
        self._parents = (p1, p2)
        self._dirtyparents = True
        copies = {}
        if fold_p2:
            for f, s in pycompat.iteritems(self._map):
                # Discard "merged" markers when moving away from a merge state
                if s.merged or s.from_p2:
                    source = self.copymap.pop(f, None)
                    if source:
                        copies[f] = source
                    s.drop_merge_data()
        return copies

    ### disk interaction

    def read(self):
        # ignore HG_PENDING because identity is used only for writing
        self.identity = util.filestat.frompath(
            self._opener.join(self._filename)
        )

        try:
            fp = self._opendirstatefile()
            try:
                st = fp.read()
            finally:
                fp.close()
        except IOError as err:
            if err.errno != errno.ENOENT:
                raise
            return
        if not st:
            return

        if util.safehasattr(parsers, b'dict_new_presized'):
            # Make an estimate of the number of files in the dirstate based on
            # its size. This trades wasting some memory for avoiding costly
            # resizes. Each entry have a prefix of 17 bytes followed by one or
            # two path names. Studies on various large-scale real-world repositories
            # found 54 bytes a reasonable upper limit for the average path names.
            # Copy entries are ignored for the sake of this estimate.
            self._map = parsers.dict_new_presized(len(st) // 71)

        # Python's garbage collector triggers a GC each time a certain number
        # of container objects (the number being defined by
        # gc.get_threshold()) are allocated. parse_dirstate creates a tuple
        # for each file in the dirstate. The C version then immediately marks
        # them as not to be tracked by the collector. However, this has no
        # effect on when GCs are triggered, only on what objects the GC looks
        # into. This means that O(number of files) GCs are unavoidable.
        # Depending on when in the process's lifetime the dirstate is parsed,
        # this can get very expensive. As a workaround, disable GC while
        # parsing the dirstate.
        #
        # (we cannot decorate the function directly since it is in a C module)
        parse_dirstate = util.nogc(parsers.parse_dirstate)
        p = parse_dirstate(self._map, self.copymap, st)
        if not self._dirtyparents:
            self.setparents(*p)

        # Avoid excess attribute lookups by fast pathing certain checks
        self.__contains__ = self._map.__contains__
        self.__getitem__ = self._map.__getitem__
        self.get = self._map.get

    def write(self, _tr, st, now):
        d = parsers.pack_dirstate(self._map, self.copymap, self.parents(), now)
        st.write(d)
        st.close()
        self._dirtyparents = False

    def _opendirstatefile(self):
        fp, mode = txnutil.trypending(self._root, self._opener, self._filename)
        if self._pendingmode is not None and self._pendingmode != mode:
            fp.close()
            raise error.Abort(
                _(b'working directory state may be changed parallelly')
            )
        self._pendingmode = mode
        return fp

    @propertycache
    def identity(self):
        self._map
        return self.identity

    ### code related to maintaining and accessing "extra" property
    # (e.g. "has_dir")

    def _dirs_incr(self, filename, old_entry=None):
        """incremente the dirstate counter if applicable"""
        if (
            old_entry is None or old_entry.removed

        elif remove_variant and "_alldirs" in self.__dict__:
            self._alldirs.addpath(filename)
        if "filefoldmap" in self.__dict__:
            normed = util.normcase(filename)
            self.filefoldmap.pop(normed, None)

    @propertycache
    def filefoldmap(self):
        """Returns a dictionary mapping normalized case paths to their
        non-normalized versions.
        """
        try:
            makefilefoldmap = parsers.make_file_foldmap
        except AttributeError:
            pass
        else:
            return makefilefoldmap(
                self._map, util.normcasespec, util.normcasefallback
            )

        f = {}
        normcase = util.normcase
        for name, s in pycompat.iteritems(self._map):
            if not s.removed:
                f[normcase(name)] = name
        f[b'.'] = b'.'  # prevents useless util.fspath() invocation
        return f

    @propertycache
    def dirfoldmap(self):
        f = {}
        normcase = util.normcase
        for name in self._dirs:
            f[normcase(name)] = name
        return f

    def hastrackeddir(self, d):
        """
        Returns True if the dirstate contains a tracked (not removed) file
        in this directory.
        """
        return d in self._dirs

    def hasdir(self, d):
        """
        Returns True if the dirstate contains a file (tracked or removed)
        in this directory.
        """
        return d in self._alldirs

    @propertycache
    def _dirs(self):
        return pathutil.dirs(self._map, only_tracked=True)

    @propertycache
    def _alldirs(self):
        return pathutil.dirs(self._map)

    ### code related to manipulation of entries and copy-sources

    def set_possibly_dirty(self, filename):
        """record that the current state of the file on disk is unknown"""
        self[filename].set_possibly_dirty()

                self._map.pop(f, None)
            else:
                entry.set_untracked()
            return True


if rustmod is not None:

    class dirstatemap(_dirstatemapcommon):
        def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2):
            super(dirstatemap, self).__init__(
                ui, opener, root, nodeconstants, use_dirstate_v2
            )
            self._docket = None

        ### Core data storage and access

        @property
        def docket(self):
            if not self._docket:
                if not self._use_dirstate_v2:
                    raise error.ProgrammingError(
                        b'dirstate only has a docket in v2 format'
                    )
                self._docket = docketmod.DirstateDocket.parse(
                    self._readdirstatefile(), self._nodeconstants
                )
            return self._docket

        @propertycache
        def _map(self):
            """
            Fills the Dirstatemap when called.
            """
            # ignore HG_PENDING because identity is used only for writing
            self.identity = util.filestat.frompath(
                self._opener.join(self._filename)
            )

            if self._use_dirstate_v2:
                if self.docket.uuid:
                    # TODO: use mmap when possible
                    data = self._opener.read(self.docket.data_filename())
                else:
                    data = b''
                self._map = rustmod.DirstateMap.new_v2(
                    data, self.docket.data_size, self.docket.tree_metadata
                )
                parents = self.docket.parents
            else:
                self._map, parents = rustmod.DirstateMap.new_v1(
                    self._readdirstatefile()
                )

            if parents and not self._dirtyparents:
                self.setparents(*parents)

            self.__contains__ = self._map.__contains__
            self.__getitem__ = self._map.__getitem__
            self.get = self._map.get
            return self._map

        @property
        def copymap(self):
            return self._map.copymap()

            util.clearcachedproperty(self, b"dirfoldmap")

        def items(self):
            return self._map.items()

        # forward for python2,3 compat
        iteritems = items

        def keys(self):
            return iter(self._map)

        ### reading/setting parents

        def setparents(self, p1, p2, fold_p2=False):
            self._parents = (p1, p2)
            self._dirtyparents = True
            copies = {}

                            _(b'working directory state appears damaged!')
                        )

            return self._parents

        ### disk interaction

        @propertycache
        def identity(self):
            self._map
            return self.identity

        def write(self, tr, st, now):
            if not self._use_dirstate_v2:
                p1, p2 = self.parents()
                packed = self._map.write_v1(p1, p2, now)

                self._docket = new_docket
            # Reload from the newly-written file
            util.clearcachedproperty(self, b"_map")
            self._dirtyparents = False

        def _opendirstatefile(self):
            fp, mode = txnutil.trypending(
                self._root, self._opener, self._filename
            )
            if self._pendingmode is not None and self._pendingmode != mode:
                fp.close()
                raise error.Abort(
                    _(b'working directory state may be changed parallelly')
                )
            self._pendingmode = mode
            return fp

        def _readdirstatefile(self, size=-1):
            try:
                with self._opendirstatefile() as fp:
                    return fp.read(size)
            except IOError as err:
                if err.errno != errno.ENOENT:
                    raise
                # File doesn't exist, so the current state is empty
                return b''

        ### code related to maintaining and accessing "extra" property
        # (e.g. "has_dir")

        @propertycache
        def filefoldmap(self):
            """Returns a dictionary mapping normalized case paths to their
            non-normalized versions.
            """

        def hastrackeddir(self, d):
            return self._map.hastrackeddir(d)

        def hasdir(self, d):
            return self._map.hasdir(d)

        @propertycache
        def dirfoldmap(self):
            f = {}
            normcase = util.normcase
            for name in self._map.tracked_dirs():
                f[normcase(name)] = name
            return f

        ### code related to manipulation of entries and copy-sources

        def set_possibly_dirty(self, filename):
            """record that the current state of the file on disk is unknown"""
            entry = self[filename]
            entry.set_possibly_dirty()

            self._map.copymap().pop(filename, None)

        def __setitem__(self, key, value):
            assert isinstance(value, DirstateItem)
            self._map.set_dirstate_item(key, value)

        def reset_state(
            self,
            filename,
            wc_tracked=False,
            p1_tracked=False,
            p2_tracked=False,
            merged=False,
            clean_p1=False,
            clean_p2=False,
            possibly_dirty=False,
            parentfiledata=None,
        ):
            """Set a entry to a given state, disregarding all previous state

            This is to be used by the part of the dirstate API dedicated to
            adjusting the dirstate after a update/merge.

            note: calling this might result to no entry existing at all if the
            dirstate map does not see any point at having one for this file
            anymore.
            """
            if merged and (clean_p1 or clean_p2):
                msg = (
                    b'`merged` argument incompatible with `clean_p1`/`clean_p2`'
                )
                raise error.ProgrammingError(msg)
            # copy information are now outdated
            # (maybe new information should be in directly passed to this function)
            self.copymap.pop(filename, None)

            if not (p1_tracked or p2_tracked or wc_tracked):
                self._map.drop_item_and_copy_source(filename)
            elif merged:
                # XXX might be merged and removed ?
                entry = self.get(filename)
                if entry is not None and entry.tracked:
                    # XXX mostly replicate dirstate.other parent.  We should get
                    # the higher layer to pass us more reliable data where `merged`
                    # actually mean merged. Dropping the else clause will show
                    # failure in `test-graft.t`
                    self.addfile(filename, merged=True)
                else:
                    self.addfile(filename, from_p2=True)
            elif not (p1_tracked or p2_tracked) and wc_tracked:
                self.addfile(
                    filename, added=True, possibly_dirty=possibly_dirty
                )
            elif (p1_tracked or p2_tracked) and not wc_tracked:
                # XXX might be merged and removed ?
                self[filename] = DirstateItem.from_v1_data(b'r', 0, 0, 0)
            elif clean_p2 and wc_tracked:
                if p1_tracked or self.get(filename) is not None:
                    # XXX the `self.get` call is catching some case in
                    # `test-merge-remove.t` where the file is tracked in p1, the
                    # p1_tracked argument is False.
                    #
                    # In addition, this seems to be a case where the file is marked
                    # as merged without actually being the result of a merge
                    # action. So thing are not ideal here.
                    self.addfile(filename, merged=True)
                else:
                    self.addfile(filename, from_p2=True)
            elif not p1_tracked and p2_tracked and wc_tracked:
                self.addfile(
                    filename, from_p2=True, possibly_dirty=possibly_dirty
                )
            elif possibly_dirty:
                self.addfile(filename, possibly_dirty=possibly_dirty)
            elif wc_tracked:
                # this is a "normal" file
                if parentfiledata is None:
                    msg = b'failed to pass parentfiledata for a normal file: %s'
                    msg %= filename
                    raise error.ProgrammingError(msg)
                mode, size, mtime = parentfiledata
                self.addfile(filename, mode=mode, size=size, mtime=mtime)
            else:
                assert False, 'unreachable'

        def set_tracked(self, filename):
            new = False
            entry = self.get(filename)
            if entry is None:
                self.addfile(filename, added=True)
                new = True
            elif not entry.tracked:
                entry.set_tracked()
                self._map.set_dirstate_item(filename, entry)
                new = True
            else:
                # XXX This is probably overkill for more case, but we need this to
                # fully replace the `normallookup` call with `set_tracked` one.
                # Consider smoothing this in the future.
                self.set_possibly_dirty(filename)
            return new

        def set_untracked(self, f):
            """Mark a file as no longer tracked in the dirstate map"""
            # in merge is only trigger more logic, so it "fine" to pass it.
            #
            # the inner rust dirstate map code need to be adjusted once the API
            # for dirstate/dirstatemap/DirstateItem is a bit more settled
            entry = self.get(f)
            if entry is None:
                return False
            else:
                if entry.added:
                    self._map.drop_item_and_copy_source(f)
                else:
                    self._map.removefile(f, in_merge=True)
                return True

        ### Legacy method we need to get rid of

        def addfile(
            self,
            f,
            mode=0,
            size=None,
            mtime=None,
            added=False,
            merged=False,
            from_p2=False,
            possibly_dirty=False,
        ):
            if added:
                assert not possibly_dirty
                assert not from_p2
                item = DirstateItem.new_added()
            elif merged:
                assert not possibly_dirty
                assert not from_p2
                item = DirstateItem.new_merged()
            elif from_p2:
                assert not possibly_dirty
                item = DirstateItem.new_from_p2()
            elif possibly_dirty:
                item = DirstateItem.new_possibly_dirty()
            else:
                assert size is not None
                assert mtime is not None
                size = size & rangemask
                mtime = mtime & rangemask
                item = DirstateItem.new_normal(mode, size, mtime)
            self._map.addfile(f, item)
            if added:
                self.copymap.pop(f, None)

        def removefile(self, *args, **kwargs):
            return self._map.removefile(*args, **kwargs)