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// dirstate_map.rs
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//
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// Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
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//
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// This software may be used and distributed according to the terms of the
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// GNU General Public License version 2 or any later version.
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//! Bindings for the `hg::dirstate::dirstate_map` file provided by the
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//! `hg-core` package.
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use std::cell::RefCell;
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use std::convert::TryInto;
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use std::time::Duration;
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use cpython::{
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exc, ObjectProtocol, PyBool, PyBytes, PyClone, PyDict, PyErr, PyObject,
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PyResult, PyTuple, Python, PythonObject, ToPyObject,
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};
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use libc::c_char;
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use crate::{
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dirstate::copymap::{CopyMap, CopyMapItemsIterator, CopyMapKeysIterator},
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dirstate::{decapsule_make_dirstate_tuple, dirs_multiset::Dirs},
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ref_sharing::PySharedState,
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};
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use hg::{
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DirsMultiset, DirstateEntry, DirstateMap as RustDirstateMap,
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DirstateParents, DirstateParseError, EntryState, PARENT_SIZE,
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};
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// TODO
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// This object needs to share references to multiple members of its Rust
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// inner struct, namely `copy_map`, `dirs` and `all_dirs`.
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// Right now `CopyMap` is done, but it needs to have an explicit reference
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// to `RustDirstateMap` which itself needs to have an encapsulation for
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// every method in `CopyMap` (copymapcopy, etc.).
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// This is ugly and hard to maintain.
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// The same logic applies to `dirs` and `all_dirs`, however the `Dirs`
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// `py_class!` is already implemented and does not mention
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// `RustDirstateMap`, rightfully so.
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// All attributes also have to have a separate refcount data attribute for
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// leaks, with all methods that go along for reference sharing.
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py_class!(pub class DirstateMap |py| {
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data inner: RefCell<RustDirstateMap>;
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data py_shared_state: PySharedState;
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def __new__(_cls, _root: PyObject) -> PyResult<Self> {
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let inner = RustDirstateMap::default();
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Self::create_instance(
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py,
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RefCell::new(inner),
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PySharedState::default()
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)
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}
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def clear(&self) -> PyResult<PyObject> {
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self.borrow_mut(py)?.clear();
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Ok(py.None())
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}
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def get(
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&self,
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key: PyObject,
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default: Option<PyObject> = None
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) -> PyResult<Option<PyObject>> {
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let key = key.extract::<PyBytes>(py)?;
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match self.inner(py).borrow().get(key.data(py)) {
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Some(entry) => {
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// Explicitly go through u8 first, then cast to
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// platform-specific `c_char`.
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let state: u8 = entry.state.into();
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Ok(Some(decapsule_make_dirstate_tuple(py)?(
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state as c_char,
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entry.mode,
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entry.size,
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entry.mtime,
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)))
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},
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None => Ok(default)
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}
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}
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def addfile(
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&self,
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f: PyObject,
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oldstate: PyObject,
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state: PyObject,
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mode: PyObject,
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size: PyObject,
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mtime: PyObject
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) -> PyResult<PyObject> {
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self.borrow_mut(py)?.add_file(
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f.extract::<PyBytes>(py)?.data(py),
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oldstate.extract::<PyBytes>(py)?.data(py)[0]
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.try_into()
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.map_err(|e: DirstateParseError| {
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PyErr::new::<exc::ValueError, _>(py, e.to_string())
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})?,
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DirstateEntry {
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state: state.extract::<PyBytes>(py)?.data(py)[0]
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.try_into()
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.map_err(|e: DirstateParseError| {
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PyErr::new::<exc::ValueError, _>(py, e.to_string())
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})?,
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mode: mode.extract(py)?,
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size: size.extract(py)?,
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mtime: mtime.extract(py)?,
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},
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);
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Ok(py.None())
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}
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def removefile(
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&self,
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f: PyObject,
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oldstate: PyObject,
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size: PyObject
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) -> PyResult<PyObject> {
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self.borrow_mut(py)?
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.remove_file(
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f.extract::<PyBytes>(py)?.data(py),
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oldstate.extract::<PyBytes>(py)?.data(py)[0]
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.try_into()
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.map_err(|e: DirstateParseError| {
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PyErr::new::<exc::ValueError, _>(py, e.to_string())
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})?,
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size.extract(py)?,
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)
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.or_else(|_| {
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Err(PyErr::new::<exc::OSError, _>(
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py,
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"Dirstate error".to_string(),
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))
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})?;
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Ok(py.None())
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}
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def dropfile(
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&self,
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f: PyObject,
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oldstate: PyObject
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) -> PyResult<PyBool> {
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self.borrow_mut(py)?
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.drop_file(
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f.extract::<PyBytes>(py)?.data(py),
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oldstate.extract::<PyBytes>(py)?.data(py)[0]
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.try_into()
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.map_err(|e: DirstateParseError| {
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PyErr::new::<exc::ValueError, _>(py, e.to_string())
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})?,
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)
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.and_then(|b| Ok(b.to_py_object(py)))
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.or_else(|_| {
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Err(PyErr::new::<exc::OSError, _>(
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py,
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"Dirstate error".to_string(),
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))
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})
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}
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def clearambiguoustimes(
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&self,
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files: PyObject,
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now: PyObject
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) -> PyResult<PyObject> {
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let files: PyResult<Vec<Vec<u8>>> = files
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.iter(py)?
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.map(|filename| {
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Ok(filename?.extract::<PyBytes>(py)?.data(py).to_owned())
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})
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.collect();
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self.borrow_mut(py)?
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.clear_ambiguous_times(files?, now.extract(py)?);
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Ok(py.None())
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}
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// TODO share the reference
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def nonnormalentries(&self) -> PyResult<PyObject> {
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let (non_normal, other_parent) =
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self.inner(py).borrow().non_normal_other_parent_entries();
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let locals = PyDict::new(py);
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locals.set_item(
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py,
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"non_normal",
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non_normal
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.iter()
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.map(|v| PyBytes::new(py, &v))
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.collect::<Vec<PyBytes>>()
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.to_py_object(py),
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)?;
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locals.set_item(
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py,
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"other_parent",
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other_parent
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.iter()
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.map(|v| PyBytes::new(py, &v))
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.collect::<Vec<PyBytes>>()
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.to_py_object(py),
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)?;
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py.eval("set(non_normal), set(other_parent)", None, Some(&locals))
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}
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def hastrackeddir(&self, d: PyObject) -> PyResult<PyBool> {
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let d = d.extract::<PyBytes>(py)?;
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Ok(self.borrow_mut(py)?
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.has_tracked_dir(d.data(py))
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.to_py_object(py))
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}
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def hasdir(&self, d: PyObject) -> PyResult<PyBool> {
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let d = d.extract::<PyBytes>(py)?;
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Ok(self.borrow_mut(py)?
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.has_dir(d.data(py))
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.to_py_object(py))
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}
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def parents(&self, st: PyObject) -> PyResult<PyTuple> {
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self.borrow_mut(py)?
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.parents(st.extract::<PyBytes>(py)?.data(py))
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.and_then(|d| {
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Ok((PyBytes::new(py, &d.p1), PyBytes::new(py, &d.p2))
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.to_py_object(py))
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})
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.or_else(|_| {
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Err(PyErr::new::<exc::OSError, _>(
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py,
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"Dirstate error".to_string(),
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))
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})
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}
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def setparents(&self, p1: PyObject, p2: PyObject) -> PyResult<PyObject> {
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let p1 = extract_node_id(py, &p1)?;
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let p2 = extract_node_id(py, &p2)?;
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self.borrow_mut(py)?
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.set_parents(&DirstateParents { p1, p2 });
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Ok(py.None())
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}
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def read(&self, st: PyObject) -> PyResult<Option<PyObject>> {
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match self.borrow_mut(py)?
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.read(st.extract::<PyBytes>(py)?.data(py))
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{
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Ok(Some(parents)) => Ok(Some(
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(PyBytes::new(py, &parents.p1), PyBytes::new(py, &parents.p2))
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.to_py_object(py)
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.into_object(),
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)),
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Ok(None) => Ok(Some(py.None())),
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Err(_) => Err(PyErr::new::<exc::OSError, _>(
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py,
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"Dirstate error".to_string(),
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)),
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}
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}
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def write(
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&self,
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p1: PyObject,
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p2: PyObject,
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now: PyObject
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) -> PyResult<PyBytes> {
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let now = Duration::new(now.extract(py)?, 0);
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let parents = DirstateParents {
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p1: extract_node_id(py, &p1)?,
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p2: extract_node_id(py, &p2)?,
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};
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match self.borrow_mut(py)?.pack(parents, now) {
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Ok(packed) => Ok(PyBytes::new(py, &packed)),
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Err(_) => Err(PyErr::new::<exc::OSError, _>(
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py,
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"Dirstate error".to_string(),
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)),
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}
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}
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def filefoldmapasdict(&self) -> PyResult<PyDict> {
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let dict = PyDict::new(py);
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for (key, value) in
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self.borrow_mut(py)?.build_file_fold_map().iter()
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{
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dict.set_item(py, key, value)?;
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}
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Ok(dict)
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}
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def __len__(&self) -> PyResult<usize> {
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Ok(self.inner(py).borrow().len())
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}
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def __contains__(&self, key: PyObject) -> PyResult<bool> {
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let key = key.extract::<PyBytes>(py)?;
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Ok(self.inner(py).borrow().contains_key(key.data(py)))
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}
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def __getitem__(&self, key: PyObject) -> PyResult<PyObject> {
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let key = key.extract::<PyBytes>(py)?;
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let key = key.data(py);
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match self.inner(py).borrow().get(key) {
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Some(entry) => {
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// Explicitly go through u8 first, then cast to
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// platform-specific `c_char`.
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let state: u8 = entry.state.into();
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Ok(decapsule_make_dirstate_tuple(py)?(
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state as c_char,
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entry.mode,
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entry.size,
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entry.mtime,
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))
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},
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None => Err(PyErr::new::<exc::KeyError, _>(
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py,
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String::from_utf8_lossy(key),
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)),
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}
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}
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def keys(&self) -> PyResult<DirstateMapKeysIterator> {
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DirstateMapKeysIterator::from_inner(
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py,
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Some(DirstateMapLeakedRef::new(py, &self)),
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Box::new(self.leak_immutable(py)?.iter()),
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)
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}
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def items(&self) -> PyResult<DirstateMapItemsIterator> {
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DirstateMapItemsIterator::from_inner(
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py,
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Some(DirstateMapLeakedRef::new(py, &self)),
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Box::new(self.leak_immutable(py)?.iter()),
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)
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}
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def __iter__(&self) -> PyResult<DirstateMapKeysIterator> {
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DirstateMapKeysIterator::from_inner(
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py,
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Some(DirstateMapLeakedRef::new(py, &self)),
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Box::new(self.leak_immutable(py)?.iter()),
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)
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}
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def getdirs(&self) -> PyResult<Dirs> {
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// TODO don't copy, share the reference
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self.borrow_mut(py)?.set_dirs();
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Dirs::from_inner(
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py,
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DirsMultiset::from_dirstate(
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&self.inner(py).borrow(),
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Some(EntryState::Removed),
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),
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)
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}
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def getalldirs(&self) -> PyResult<Dirs> {
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// TODO don't copy, share the reference
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self.borrow_mut(py)?.set_all_dirs();
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Dirs::from_inner(
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py,
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DirsMultiset::from_dirstate(
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&self.inner(py).borrow(),
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None,
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),
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)
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}
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// TODO all copymap* methods, see docstring above
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def copymapcopy(&self) -> PyResult<PyDict> {
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let dict = PyDict::new(py);
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for (key, value) in self.inner(py).borrow().copy_map.iter() {
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dict.set_item(py, PyBytes::new(py, key), PyBytes::new(py, value))?;
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}
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Ok(dict)
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}
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def copymapgetitem(&self, key: PyObject) -> PyResult<PyBytes> {
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let key = key.extract::<PyBytes>(py)?;
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match self.inner(py).borrow().copy_map.get(key.data(py)) {
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Some(copy) => Ok(PyBytes::new(py, copy)),
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None => Err(PyErr::new::<exc::KeyError, _>(
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py,
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String::from_utf8_lossy(key.data(py)),
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)),
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}
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}
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def copymap(&self) -> PyResult<CopyMap> {
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CopyMap::from_inner(py, self.clone_ref(py))
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}
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def copymaplen(&self) -> PyResult<usize> {
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Ok(self.inner(py).borrow().copy_map.len())
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}
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def copymapcontains(&self, key: PyObject) -> PyResult<bool> {
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let key = key.extract::<PyBytes>(py)?;
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Ok(self.inner(py).borrow().copy_map.contains_key(key.data(py)))
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}
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def copymapget(
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&self,
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key: PyObject,
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default: Option<PyObject>
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) -> PyResult<Option<PyObject>> {
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let key = key.extract::<PyBytes>(py)?;
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match self.inner(py).borrow().copy_map.get(key.data(py)) {
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Some(copy) => Ok(Some(PyBytes::new(py, copy).into_object())),
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None => Ok(default),
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}
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}
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def copymapsetitem(
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&self,
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key: PyObject,
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value: PyObject
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) -> PyResult<PyObject> {
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let key = key.extract::<PyBytes>(py)?;
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let value = value.extract::<PyBytes>(py)?;
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self.borrow_mut(py)?
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.copy_map
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.insert(key.data(py).to_vec(), value.data(py).to_vec());
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Ok(py.None())
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}
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def copymappop(
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&self,
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key: PyObject,
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default: Option<PyObject>
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) -> PyResult<Option<PyObject>> {
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let key = key.extract::<PyBytes>(py)?;
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|
|
match self.borrow_mut(py)?.copy_map.remove(key.data(py)) {
|
|
|
Some(_) => Ok(None),
|
|
|
None => Ok(default),
|
|
|
}
|
|
|
}
|
|
|
|
|
|
def copymapiter(&self) -> PyResult<CopyMapKeysIterator> {
|
|
|
CopyMapKeysIterator::from_inner(
|
|
|
py,
|
|
|
Some(DirstateMapLeakedRef::new(py, &self)),
|
|
|
Box::new(self.leak_immutable(py)?.copy_map.iter()),
|
|
|
)
|
|
|
}
|
|
|
|
|
|
def copymapitemsiter(&self) -> PyResult<CopyMapItemsIterator> {
|
|
|
CopyMapItemsIterator::from_inner(
|
|
|
py,
|
|
|
Some(DirstateMapLeakedRef::new(py, &self)),
|
|
|
Box::new(self.leak_immutable(py)?.copy_map.iter()),
|
|
|
)
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
impl DirstateMap {
|
|
|
fn translate_key(
|
|
|
py: Python,
|
|
|
res: (&Vec<u8>, &DirstateEntry),
|
|
|
) -> PyResult<Option<PyBytes>> {
|
|
|
Ok(Some(PyBytes::new(py, res.0)))
|
|
|
}
|
|
|
fn translate_key_value(
|
|
|
py: Python,
|
|
|
res: (&Vec<u8>, &DirstateEntry),
|
|
|
) -> PyResult<Option<(PyBytes, PyObject)>> {
|
|
|
let (f, entry) = res;
|
|
|
|
|
|
// Explicitly go through u8 first, then cast to
|
|
|
// platform-specific `c_char`.
|
|
|
let state: u8 = entry.state.into();
|
|
|
Ok(Some((
|
|
|
PyBytes::new(py, f),
|
|
|
decapsule_make_dirstate_tuple(py)?(
|
|
|
state as c_char,
|
|
|
entry.mode,
|
|
|
entry.size,
|
|
|
entry.mtime,
|
|
|
),
|
|
|
)))
|
|
|
}
|
|
|
}
|
|
|
|
|
|
py_shared_ref!(DirstateMap, RustDirstateMap, inner, DirstateMapLeakedRef,);
|
|
|
|
|
|
py_shared_mapping_iterator!(
|
|
|
DirstateMapKeysIterator,
|
|
|
DirstateMapLeakedRef,
|
|
|
Vec<u8>,
|
|
|
DirstateEntry,
|
|
|
DirstateMap::translate_key,
|
|
|
Option<PyBytes>
|
|
|
);
|
|
|
|
|
|
py_shared_mapping_iterator!(
|
|
|
DirstateMapItemsIterator,
|
|
|
DirstateMapLeakedRef,
|
|
|
Vec<u8>,
|
|
|
DirstateEntry,
|
|
|
DirstateMap::translate_key_value,
|
|
|
Option<(PyBytes, PyObject)>
|
|
|
);
|
|
|
|
|
|
fn extract_node_id(py: Python, obj: &PyObject) -> PyResult<[u8; PARENT_SIZE]> {
|
|
|
let bytes = obj.extract::<PyBytes>(py)?;
|
|
|
match bytes.data(py).try_into() {
|
|
|
Ok(s) => Ok(s),
|
|
|
Err(e) => Err(PyErr::new::<exc::ValueError, _>(py, e.to_string())),
|
|
|
}
|
|
|
}
|
|
|
|
