Mercurial > hg-stable
changeset 47135:b6339a993b91
rust: Remove handling of `parents` in `DirstateMap`
The Python wrapper class `dirstatemap` can take care of it.
This removes the need to have both `_rustmap` and `_inner_rustmap`.
Differential Revision: https://phab.mercurial-scm.org/D10555
| author | Simon Sapin <simon.sapin@octobus.net> |
|---|---|
| date | Fri, 30 Apr 2021 15:40:11 +0200 |
| parents | 7109a38830c9 |
| children | 9aba0cde0ed9 |
| files | mercurial/dirstate.py rust/hg-core/src/dirstate/dirstate_map.rs rust/hg-core/src/dirstate_tree/dirstate_map.rs rust/hg-core/src/dirstate_tree/dispatch.rs rust/hg-cpython/src/dirstate/dirstate_map.rs |
| diffstat | 5 files changed, 19 insertions(+), 149 deletions(-) [+] |
line wrap: on
line diff
--- a/mercurial/dirstate.py Fri Apr 30 14:22:14 2021 +0200 +++ b/mercurial/dirstate.py Fri Apr 30 15:40:11 2021 +0200 @@ -1750,6 +1750,7 @@ self._opener = opener self._root = root self._filename = b'dirstate' + self._nodelen = 20 self._parents = None self._dirtyparents = False @@ -1778,25 +1779,15 @@ def _rustmap(self): """ Fills the Dirstatemap when called. - Use `self._inner_rustmap` if reading the dirstate is not necessary. - """ - self._rustmap = self._inner_rustmap - self.read() - return self._rustmap - - @propertycache - def _inner_rustmap(self): - """ - Does not fill the Dirstatemap when called. This allows for - optimizations where only setting/getting the parents is needed. """ use_dirstate_tree = self._ui.configbool( b"experimental", b"dirstate-tree.in-memory", False, ) - self._inner_rustmap = rustmod.DirstateMap(use_dirstate_tree) - return self._inner_rustmap + self._rustmap = rustmod.DirstateMap(use_dirstate_tree) + self.read() + return self._rustmap @property def copymap(self): @@ -1807,7 +1798,6 @@ def clear(self): self._rustmap.clear() - self._inner_rustmap.clear() self.setparents( self._nodeconstants.nullid, self._nodeconstants.nullid ) @@ -1849,7 +1839,6 @@ return fp def setparents(self, p1, p2): - self._rustmap.setparents(p1, p2) self._parents = (p1, p2) self._dirtyparents = True @@ -1865,9 +1854,18 @@ # File doesn't exist, so the current state is empty st = b'' - try: - self._parents = self._inner_rustmap.parents(st) - except ValueError: + 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!') )
--- a/rust/hg-core/src/dirstate/dirstate_map.rs Fri Apr 30 14:22:14 2021 +0200 +++ b/rust/hg-core/src/dirstate/dirstate_map.rs Fri Apr 30 15:40:11 2021 +0200 @@ -7,10 +7,8 @@ use crate::dirstate::parsers::clear_ambiguous_mtime; use crate::dirstate::parsers::Timestamp; -use crate::errors::HgError; -use crate::revlog::node::NULL_NODE; use crate::{ - dirstate::{parsers::PARENT_SIZE, EntryState}, + dirstate::EntryState, pack_dirstate, parse_dirstate, utils::hg_path::{HgPath, HgPathBuf}, CopyMap, DirsMultiset, DirstateEntry, DirstateError, DirstateMapError, @@ -18,7 +16,6 @@ }; use micro_timer::timed; use std::collections::HashSet; -use std::convert::TryInto; use std::iter::FromIterator; use std::ops::Deref; @@ -30,8 +27,6 @@ pub all_dirs: Option<DirsMultiset>, non_normal_set: Option<HashSet<HgPathBuf>>, other_parent_set: Option<HashSet<HgPathBuf>>, - parents: Option<DirstateParents>, - dirty_parents: bool, } /// Should only really be used in python interface code, for clarity @@ -64,10 +59,6 @@ self.copy_map.clear(); self.non_normal_set = None; self.other_parent_set = None; - self.set_parents(&DirstateParents { - p1: NULL_NODE, - p2: NULL_NODE, - }) } /// Add a tracked file to the dirstate @@ -292,41 +283,6 @@ Ok(self.all_dirs.as_ref().unwrap().contains(directory)) } - pub fn parents( - &mut self, - file_contents: &[u8], - ) -> Result<&DirstateParents, DirstateError> { - if let Some(ref parents) = self.parents { - return Ok(parents); - } - let parents; - if file_contents.len() == PARENT_SIZE * 2 { - parents = DirstateParents { - p1: file_contents[..PARENT_SIZE].try_into().unwrap(), - p2: file_contents[PARENT_SIZE..PARENT_SIZE * 2] - .try_into() - .unwrap(), - }; - } else if file_contents.is_empty() { - parents = DirstateParents { - p1: NULL_NODE, - p2: NULL_NODE, - }; - } else { - return Err( - HgError::corrupted("Dirstate appears to be damaged").into() - ); - } - - self.parents = Some(parents); - Ok(self.parents.as_ref().unwrap()) - } - - pub fn set_parents(&mut self, parents: &DirstateParents) { - self.parents = Some(parents.clone()); - self.dirty_parents = true; - } - #[timed] pub fn read<'a>( &mut self, @@ -347,11 +303,6 @@ .into_iter() .map(|(path, copy)| (path.to_owned(), copy.to_owned())), ); - - if !self.dirty_parents { - self.set_parents(&parents); - } - Ok(Some(parents)) } @@ -363,8 +314,6 @@ let packed = pack_dirstate(&mut self.state_map, &self.copy_map, parents, now)?; - self.dirty_parents = false; - self.set_non_normal_other_parent_entries(true); Ok(packed) }
--- a/rust/hg-core/src/dirstate_tree/dirstate_map.rs Fri Apr 30 14:22:14 2021 +0200 +++ b/rust/hg-core/src/dirstate_tree/dirstate_map.rs Fri Apr 30 15:40:11 2021 +0200 @@ -8,10 +8,8 @@ use crate::dirstate::parsers::pack_entry; use crate::dirstate::parsers::packed_entry_size; use crate::dirstate::parsers::parse_dirstate_entries; -use crate::dirstate::parsers::parse_dirstate_parents; use crate::dirstate::parsers::Timestamp; use crate::matchers::Matcher; -use crate::revlog::node::NULL_NODE; use crate::utils::hg_path::{HgPath, HgPathBuf}; use crate::CopyMapIter; use crate::DirstateEntry; @@ -27,8 +25,6 @@ use crate::StatusOptions; pub struct DirstateMap { - parents: Option<DirstateParents>, - dirty_parents: bool, pub(super) root: ChildNodes, /// Number of nodes anywhere in the tree that have `.entry.is_some()`. @@ -76,8 +72,6 @@ impl DirstateMap { pub fn new() -> Self { Self { - parents: None, - dirty_parents: false, root: ChildNodes::default(), nodes_with_entry_count: 0, nodes_with_copy_source_count: 0, @@ -288,10 +282,6 @@ impl super::dispatch::DirstateMapMethods for DirstateMap { fn clear(&mut self) { - self.set_parents(&DirstateParents { - p1: NULL_NODE, - p2: NULL_NODE, - }); self.root.clear(); self.nodes_with_entry_count = 0; self.nodes_with_copy_source_count = 0; @@ -453,29 +443,6 @@ } } - fn parents( - &mut self, - file_contents: &[u8], - ) -> Result<&DirstateParents, DirstateError> { - if self.parents.is_none() { - let parents = if !file_contents.is_empty() { - parse_dirstate_parents(file_contents)?.clone() - } else { - DirstateParents { - p1: NULL_NODE, - p2: NULL_NODE, - } - }; - self.parents = Some(parents); - } - Ok(self.parents.as_ref().unwrap()) - } - - fn set_parents(&mut self, parents: &DirstateParents) { - self.parents = Some(parents.clone()); - self.dirty_parents = true; - } - #[timed] fn read<'a>( &mut self, @@ -515,10 +482,6 @@ }, )?; - if !self.dirty_parents { - self.set_parents(parents); - } - Ok(Some(parents)) } @@ -554,7 +517,6 @@ ); } } - self.dirty_parents = false; Ok(packed) }
--- a/rust/hg-core/src/dirstate_tree/dispatch.rs Fri Apr 30 14:22:14 2021 +0200 +++ b/rust/hg-core/src/dirstate_tree/dispatch.rs Fri Apr 30 15:40:11 2021 +0200 @@ -73,13 +73,6 @@ directory: &HgPath, ) -> Result<bool, DirstateMapError>; - fn parents( - &mut self, - file_contents: &[u8], - ) -> Result<&DirstateParents, DirstateError>; - - fn set_parents(&mut self, parents: &DirstateParents); - fn read<'a>( &mut self, file_contents: &'a [u8], @@ -223,17 +216,6 @@ self.has_dir(directory) } - fn parents( - &mut self, - file_contents: &[u8], - ) -> Result<&DirstateParents, DirstateError> { - self.parents(file_contents) - } - - fn set_parents(&mut self, parents: &DirstateParents) { - self.set_parents(parents) - } - fn read<'a>( &mut self, file_contents: &'a [u8],
--- a/rust/hg-cpython/src/dirstate/dirstate_map.rs Fri Apr 30 14:22:14 2021 +0200 +++ b/rust/hg-cpython/src/dirstate/dirstate_map.rs Fri Apr 30 15:40:11 2021 +0200 @@ -13,8 +13,8 @@ use cpython::{ exc, ObjectProtocol, PyBool, PyBytes, PyClone, PyDict, PyErr, PyList, - PyObject, PyResult, PySet, PyString, PyTuple, Python, PythonObject, - ToPyObject, UnsafePyLeaked, + PyObject, PyResult, PySet, PyString, Python, PythonObject, ToPyObject, + UnsafePyLeaked, }; use crate::{ @@ -271,27 +271,6 @@ .to_py_object(py)) } - def parents(&self, st: PyObject) -> PyResult<PyTuple> { - self.inner(py).borrow_mut() - .parents(st.extract::<PyBytes>(py)?.data(py)) - .map(|parents| dirstate_parents_to_pytuple(py, parents)) - .or_else(|_| { - Err(PyErr::new::<exc::OSError, _>( - py, - "Dirstate error".to_string(), - )) - }) - } - - def setparents(&self, p1: PyObject, p2: PyObject) -> PyResult<PyObject> { - let p1 = extract_node_id(py, &p1)?; - let p2 = extract_node_id(py, &p2)?; - - self.inner(py).borrow_mut() - .set_parents(&DirstateParents { p1, p2 }); - Ok(py.None()) - } - def read(&self, st: PyObject) -> PyResult<Option<PyObject>> { match self.inner(py).borrow_mut() .read(st.extract::<PyBytes>(py)?.data(py))