|
|
use bytes_cast::BytesCast;
|
|
|
use micro_timer::timed;
|
|
|
use std::borrow::Cow;
|
|
|
use std::convert::TryInto;
|
|
|
use std::path::PathBuf;
|
|
|
|
|
|
use super::path_with_basename::WithBasename;
|
|
|
use crate::dirstate::parsers::clear_ambiguous_mtime;
|
|
|
use crate::dirstate::parsers::pack_entry;
|
|
|
use crate::dirstate::parsers::packed_entry_size;
|
|
|
use crate::dirstate::parsers::parse_dirstate_entries;
|
|
|
use crate::dirstate::parsers::Timestamp;
|
|
|
use crate::matchers::Matcher;
|
|
|
use crate::utils::hg_path::{HgPath, HgPathBuf};
|
|
|
use crate::CopyMapIter;
|
|
|
use crate::DirstateEntry;
|
|
|
use crate::DirstateError;
|
|
|
use crate::DirstateMapError;
|
|
|
use crate::DirstateParents;
|
|
|
use crate::DirstateStatus;
|
|
|
use crate::EntryState;
|
|
|
use crate::FastHashMap;
|
|
|
use crate::PatternFileWarning;
|
|
|
use crate::StateMapIter;
|
|
|
use crate::StatusError;
|
|
|
use crate::StatusOptions;
|
|
|
|
|
|
pub struct DirstateMap<'on_disk> {
|
|
|
/// Contents of the `.hg/dirstate` file
|
|
|
on_disk: &'on_disk [u8],
|
|
|
|
|
|
pub(super) root: ChildNodes<'on_disk>,
|
|
|
|
|
|
/// Number of nodes anywhere in the tree that have `.entry.is_some()`.
|
|
|
nodes_with_entry_count: usize,
|
|
|
|
|
|
/// Number of nodes anywhere in the tree that have
|
|
|
/// `.copy_source.is_some()`.
|
|
|
nodes_with_copy_source_count: usize,
|
|
|
}
|
|
|
|
|
|
/// Using a plain `HgPathBuf` of the full path from the repository root as a
|
|
|
/// map key would also work: all paths in a given map have the same parent
|
|
|
/// path, so comparing full paths gives the same result as comparing base
|
|
|
/// names. However `BTreeMap` would waste time always re-comparing the same
|
|
|
/// string prefix.
|
|
|
pub(super) type ChildNodes<'on_disk> =
|
|
|
FastHashMap<WithBasename<Cow<'on_disk, HgPath>>, Node<'on_disk>>;
|
|
|
|
|
|
/// Represents a file or a directory
|
|
|
#[derive(Default)]
|
|
|
pub(super) struct Node<'on_disk> {
|
|
|
/// `None` for directories
|
|
|
pub(super) entry: Option<DirstateEntry>,
|
|
|
|
|
|
pub(super) copy_source: Option<Cow<'on_disk, HgPath>>,
|
|
|
|
|
|
pub(super) children: ChildNodes<'on_disk>,
|
|
|
|
|
|
/// How many (non-inclusive) descendants of this node are tracked files
|
|
|
tracked_descendants_count: usize,
|
|
|
}
|
|
|
|
|
|
impl Node<'_> {
|
|
|
pub(super) fn state(&self) -> Option<EntryState> {
|
|
|
self.entry.as_ref().map(|entry| entry.state)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// `(full_path, entry, copy_source)`
|
|
|
type NodeDataMut<'tree, 'on_disk> = (
|
|
|
&'tree HgPath,
|
|
|
&'tree mut Option<DirstateEntry>,
|
|
|
&'tree mut Option<Cow<'on_disk, HgPath>>,
|
|
|
);
|
|
|
|
|
|
impl<'on_disk> DirstateMap<'on_disk> {
|
|
|
pub fn new(
|
|
|
on_disk: &'on_disk [u8],
|
|
|
) -> Result<(Self, Option<DirstateParents>), DirstateError> {
|
|
|
let mut map = Self {
|
|
|
on_disk,
|
|
|
root: ChildNodes::default(),
|
|
|
nodes_with_entry_count: 0,
|
|
|
nodes_with_copy_source_count: 0,
|
|
|
};
|
|
|
let parents = map.read()?;
|
|
|
Ok((map, parents))
|
|
|
}
|
|
|
|
|
|
/// Should only be called in `new`
|
|
|
#[timed]
|
|
|
fn read(&mut self) -> Result<Option<DirstateParents>, DirstateError> {
|
|
|
if self.on_disk.is_empty() {
|
|
|
return Ok(None);
|
|
|
}
|
|
|
|
|
|
let parents = parse_dirstate_entries(
|
|
|
self.on_disk,
|
|
|
|path, entry, copy_source| {
|
|
|
let tracked = entry.state.is_tracked();
|
|
|
let node = Self::get_or_insert_node(
|
|
|
&mut self.root,
|
|
|
path,
|
|
|
WithBasename::to_cow_borrowed,
|
|
|
|ancestor| {
|
|
|
if tracked {
|
|
|
ancestor.tracked_descendants_count += 1
|
|
|
}
|
|
|
},
|
|
|
);
|
|
|
assert!(
|
|
|
node.entry.is_none(),
|
|
|
"duplicate dirstate entry in read"
|
|
|
);
|
|
|
assert!(
|
|
|
node.copy_source.is_none(),
|
|
|
"duplicate dirstate entry in read"
|
|
|
);
|
|
|
node.entry = Some(*entry);
|
|
|
node.copy_source = copy_source.map(Cow::Borrowed);
|
|
|
self.nodes_with_entry_count += 1;
|
|
|
if copy_source.is_some() {
|
|
|
self.nodes_with_copy_source_count += 1
|
|
|
}
|
|
|
},
|
|
|
)?;
|
|
|
|
|
|
Ok(Some(parents.clone()))
|
|
|
}
|
|
|
|
|
|
fn get_node(&self, path: &HgPath) -> Option<&Node> {
|
|
|
let mut children = &self.root;
|
|
|
let mut components = path.components();
|
|
|
let mut component =
|
|
|
components.next().expect("expected at least one components");
|
|
|
loop {
|
|
|
let child = children.get(component)?;
|
|
|
if let Some(next_component) = components.next() {
|
|
|
component = next_component;
|
|
|
children = &child.children;
|
|
|
} else {
|
|
|
return Some(child);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/// Returns a mutable reference to the node at `path` if it exists
|
|
|
///
|
|
|
/// This takes `root` instead of `&mut self` so that callers can mutate
|
|
|
/// other fields while the returned borrow is still valid
|
|
|
fn get_node_mut<'tree>(
|
|
|
root: &'tree mut ChildNodes<'on_disk>,
|
|
|
path: &HgPath,
|
|
|
) -> Option<&'tree mut Node<'on_disk>> {
|
|
|
let mut children = root;
|
|
|
let mut components = path.components();
|
|
|
let mut component =
|
|
|
components.next().expect("expected at least one components");
|
|
|
loop {
|
|
|
let child = children.get_mut(component)?;
|
|
|
if let Some(next_component) = components.next() {
|
|
|
component = next_component;
|
|
|
children = &mut child.children;
|
|
|
} else {
|
|
|
return Some(child);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn get_or_insert_node<'tree, 'path>(
|
|
|
root: &'tree mut ChildNodes<'on_disk>,
|
|
|
path: &'path HgPath,
|
|
|
to_cow: impl Fn(
|
|
|
WithBasename<&'path HgPath>,
|
|
|
) -> WithBasename<Cow<'on_disk, HgPath>>,
|
|
|
mut each_ancestor: impl FnMut(&mut Node),
|
|
|
) -> &'tree mut Node<'on_disk> {
|
|
|
let mut child_nodes = root;
|
|
|
let mut inclusive_ancestor_paths =
|
|
|
WithBasename::inclusive_ancestors_of(path);
|
|
|
let mut ancestor_path = inclusive_ancestor_paths
|
|
|
.next()
|
|
|
.expect("expected at least one inclusive ancestor");
|
|
|
loop {
|
|
|
// TODO: can we avoid allocating an owned key in cases where the
|
|
|
// map already contains that key, without introducing double
|
|
|
// lookup?
|
|
|
let child_node =
|
|
|
child_nodes.entry(to_cow(ancestor_path)).or_default();
|
|
|
if let Some(next) = inclusive_ancestor_paths.next() {
|
|
|
each_ancestor(child_node);
|
|
|
ancestor_path = next;
|
|
|
child_nodes = &mut child_node.children;
|
|
|
} else {
|
|
|
return child_node;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn add_or_remove_file(
|
|
|
&mut self,
|
|
|
path: &HgPath,
|
|
|
old_state: EntryState,
|
|
|
new_entry: DirstateEntry,
|
|
|
) {
|
|
|
let tracked_count_increment =
|
|
|
match (old_state.is_tracked(), new_entry.state.is_tracked()) {
|
|
|
(false, true) => 1,
|
|
|
(true, false) => -1,
|
|
|
_ => 0,
|
|
|
};
|
|
|
|
|
|
let node = Self::get_or_insert_node(
|
|
|
&mut self.root,
|
|
|
path,
|
|
|
WithBasename::to_cow_owned,
|
|
|
|ancestor| {
|
|
|
// We can’t use `+= increment` because the counter is unsigned,
|
|
|
// and we want debug builds to detect accidental underflow
|
|
|
// through zero
|
|
|
match tracked_count_increment {
|
|
|
1 => ancestor.tracked_descendants_count += 1,
|
|
|
-1 => ancestor.tracked_descendants_count -= 1,
|
|
|
_ => {}
|
|
|
}
|
|
|
},
|
|
|
);
|
|
|
if node.entry.is_none() {
|
|
|
self.nodes_with_entry_count += 1
|
|
|
}
|
|
|
node.entry = Some(new_entry)
|
|
|
}
|
|
|
|
|
|
fn iter_nodes<'a>(
|
|
|
&'a self,
|
|
|
) -> impl Iterator<Item = (&'a HgPath, &'a Node)> + 'a {
|
|
|
// Depth first tree traversal.
|
|
|
//
|
|
|
// If we could afford internal iteration and recursion,
|
|
|
// this would look like:
|
|
|
//
|
|
|
// ```
|
|
|
// fn traverse_children(
|
|
|
// children: &ChildNodes,
|
|
|
// each: &mut impl FnMut(&Node),
|
|
|
// ) {
|
|
|
// for child in children.values() {
|
|
|
// traverse_children(&child.children, each);
|
|
|
// each(child);
|
|
|
// }
|
|
|
// }
|
|
|
// ```
|
|
|
//
|
|
|
// However we want an external iterator and therefore can’t use the
|
|
|
// call stack. Use an explicit stack instead:
|
|
|
let mut stack = Vec::new();
|
|
|
let mut iter = self.root.iter();
|
|
|
std::iter::from_fn(move || {
|
|
|
while let Some((key, child_node)) = iter.next() {
|
|
|
// Pseudo-recursion
|
|
|
let new_iter = child_node.children.iter();
|
|
|
let old_iter = std::mem::replace(&mut iter, new_iter);
|
|
|
let key = &**key.full_path();
|
|
|
stack.push((key, child_node, old_iter));
|
|
|
}
|
|
|
// Found the end of a `children.iter()` iterator.
|
|
|
if let Some((key, child_node, next_iter)) = stack.pop() {
|
|
|
// "Return" from pseudo-recursion by restoring state from the
|
|
|
// explicit stack
|
|
|
iter = next_iter;
|
|
|
|
|
|
Some((key, child_node))
|
|
|
} else {
|
|
|
// Reached the bottom of the stack, we’re done
|
|
|
None
|
|
|
}
|
|
|
})
|
|
|
}
|
|
|
|
|
|
/// Mutable iterator for the `(entry, copy source)` of each node.
|
|
|
///
|
|
|
/// It would not be safe to yield mutable references to nodes themeselves
|
|
|
/// with `-> impl Iterator<Item = &mut Node>` since child nodes are
|
|
|
/// reachable from their ancestor nodes, potentially creating multiple
|
|
|
/// `&mut` references to a given node.
|
|
|
fn iter_node_data_mut<'tree>(
|
|
|
&'tree mut self,
|
|
|
) -> impl Iterator<Item = NodeDataMut<'tree, 'on_disk>> + 'tree {
|
|
|
// Explict stack for pseudo-recursion, see `iter_nodes` above.
|
|
|
let mut stack = Vec::new();
|
|
|
let mut iter = self.root.iter_mut();
|
|
|
std::iter::from_fn(move || {
|
|
|
while let Some((key, child_node)) = iter.next() {
|
|
|
// Pseudo-recursion
|
|
|
let data = (
|
|
|
&**key.full_path(),
|
|
|
&mut child_node.entry,
|
|
|
&mut child_node.copy_source,
|
|
|
);
|
|
|
let new_iter = child_node.children.iter_mut();
|
|
|
let old_iter = std::mem::replace(&mut iter, new_iter);
|
|
|
stack.push((data, old_iter));
|
|
|
}
|
|
|
// Found the end of a `children.values_mut()` iterator.
|
|
|
if let Some((data, next_iter)) = stack.pop() {
|
|
|
// "Return" from pseudo-recursion by restoring state from the
|
|
|
// explicit stack
|
|
|
iter = next_iter;
|
|
|
|
|
|
Some(data)
|
|
|
} else {
|
|
|
// Reached the bottom of the stack, we’re done
|
|
|
None
|
|
|
}
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
impl<'on_disk> super::dispatch::DirstateMapMethods for DirstateMap<'on_disk> {
|
|
|
fn clear(&mut self) {
|
|
|
self.root.clear();
|
|
|
self.nodes_with_entry_count = 0;
|
|
|
self.nodes_with_copy_source_count = 0;
|
|
|
}
|
|
|
|
|
|
fn add_file(
|
|
|
&mut self,
|
|
|
filename: &HgPath,
|
|
|
old_state: EntryState,
|
|
|
entry: DirstateEntry,
|
|
|
) -> Result<(), DirstateMapError> {
|
|
|
self.add_or_remove_file(filename, old_state, entry);
|
|
|
Ok(())
|
|
|
}
|
|
|
|
|
|
fn remove_file(
|
|
|
&mut self,
|
|
|
filename: &HgPath,
|
|
|
old_state: EntryState,
|
|
|
size: i32,
|
|
|
) -> Result<(), DirstateMapError> {
|
|
|
let entry = DirstateEntry {
|
|
|
state: EntryState::Removed,
|
|
|
mode: 0,
|
|
|
size,
|
|
|
mtime: 0,
|
|
|
};
|
|
|
self.add_or_remove_file(filename, old_state, entry);
|
|
|
Ok(())
|
|
|
}
|
|
|
|
|
|
fn drop_file(
|
|
|
&mut self,
|
|
|
filename: &HgPath,
|
|
|
old_state: EntryState,
|
|
|
) -> Result<bool, DirstateMapError> {
|
|
|
struct Dropped {
|
|
|
was_tracked: bool,
|
|
|
had_entry: bool,
|
|
|
had_copy_source: bool,
|
|
|
}
|
|
|
fn recur(nodes: &mut ChildNodes, path: &HgPath) -> Option<Dropped> {
|
|
|
let (first_path_component, rest_of_path) =
|
|
|
path.split_first_component();
|
|
|
let node = nodes.get_mut(first_path_component)?;
|
|
|
let dropped;
|
|
|
if let Some(rest) = rest_of_path {
|
|
|
dropped = recur(&mut node.children, rest)?;
|
|
|
if dropped.was_tracked {
|
|
|
node.tracked_descendants_count -= 1;
|
|
|
}
|
|
|
} else {
|
|
|
dropped = Dropped {
|
|
|
was_tracked: node
|
|
|
.entry
|
|
|
.as_ref()
|
|
|
.map_or(false, |entry| entry.state.is_tracked()),
|
|
|
had_entry: node.entry.take().is_some(),
|
|
|
had_copy_source: node.copy_source.take().is_some(),
|
|
|
};
|
|
|
}
|
|
|
// After recursion, for both leaf (rest_of_path is None) nodes and
|
|
|
// parent nodes, remove a node if it just became empty.
|
|
|
if node.entry.is_none()
|
|
|
&& node.copy_source.is_none()
|
|
|
&& node.children.is_empty()
|
|
|
{
|
|
|
nodes.remove(first_path_component);
|
|
|
}
|
|
|
Some(dropped)
|
|
|
}
|
|
|
|
|
|
if let Some(dropped) = recur(&mut self.root, filename) {
|
|
|
if dropped.had_entry {
|
|
|
self.nodes_with_entry_count -= 1
|
|
|
}
|
|
|
if dropped.had_copy_source {
|
|
|
self.nodes_with_copy_source_count -= 1
|
|
|
}
|
|
|
Ok(dropped.had_entry)
|
|
|
} else {
|
|
|
debug_assert!(!old_state.is_tracked());
|
|
|
Ok(false)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn clear_ambiguous_times(&mut self, filenames: Vec<HgPathBuf>, now: i32) {
|
|
|
for filename in filenames {
|
|
|
if let Some(node) = Self::get_node_mut(&mut self.root, &filename) {
|
|
|
if let Some(entry) = node.entry.as_mut() {
|
|
|
clear_ambiguous_mtime(entry, now);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn non_normal_entries_contains(&mut self, key: &HgPath) -> bool {
|
|
|
self.get_node(key)
|
|
|
.and_then(|node| node.entry.as_ref())
|
|
|
.map_or(false, DirstateEntry::is_non_normal)
|
|
|
}
|
|
|
|
|
|
fn non_normal_entries_remove(&mut self, _key: &HgPath) {
|
|
|
// Do nothing, this `DirstateMap` does not have a separate "non normal
|
|
|
// entries" set that need to be kept up to date
|
|
|
}
|
|
|
|
|
|
fn non_normal_or_other_parent_paths(
|
|
|
&mut self,
|
|
|
) -> Box<dyn Iterator<Item = &HgPath> + '_> {
|
|
|
Box::new(self.iter_nodes().filter_map(|(path, node)| {
|
|
|
node.entry
|
|
|
.as_ref()
|
|
|
.filter(|entry| {
|
|
|
entry.is_non_normal() || entry.is_from_other_parent()
|
|
|
})
|
|
|
.map(|_| path)
|
|
|
}))
|
|
|
}
|
|
|
|
|
|
fn set_non_normal_other_parent_entries(&mut self, _force: bool) {
|
|
|
// Do nothing, this `DirstateMap` does not have a separate "non normal
|
|
|
// entries" and "from other parent" sets that need to be recomputed
|
|
|
}
|
|
|
|
|
|
fn iter_non_normal_paths(
|
|
|
&mut self,
|
|
|
) -> Box<dyn Iterator<Item = &HgPath> + Send + '_> {
|
|
|
self.iter_non_normal_paths_panic()
|
|
|
}
|
|
|
|
|
|
fn iter_non_normal_paths_panic(
|
|
|
&self,
|
|
|
) -> Box<dyn Iterator<Item = &HgPath> + Send + '_> {
|
|
|
Box::new(self.iter_nodes().filter_map(|(path, node)| {
|
|
|
node.entry
|
|
|
.as_ref()
|
|
|
.filter(|entry| entry.is_non_normal())
|
|
|
.map(|_| path)
|
|
|
}))
|
|
|
}
|
|
|
|
|
|
fn iter_other_parent_paths(
|
|
|
&mut self,
|
|
|
) -> Box<dyn Iterator<Item = &HgPath> + Send + '_> {
|
|
|
Box::new(self.iter_nodes().filter_map(|(path, node)| {
|
|
|
node.entry
|
|
|
.as_ref()
|
|
|
.filter(|entry| entry.is_from_other_parent())
|
|
|
.map(|_| path)
|
|
|
}))
|
|
|
}
|
|
|
|
|
|
fn has_tracked_dir(
|
|
|
&mut self,
|
|
|
directory: &HgPath,
|
|
|
) -> Result<bool, DirstateMapError> {
|
|
|
if let Some(node) = self.get_node(directory) {
|
|
|
// A node without a `DirstateEntry` was created to hold child
|
|
|
// nodes, and is therefore a directory.
|
|
|
Ok(node.entry.is_none() && node.tracked_descendants_count > 0)
|
|
|
} else {
|
|
|
Ok(false)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn has_dir(
|
|
|
&mut self,
|
|
|
directory: &HgPath,
|
|
|
) -> Result<bool, DirstateMapError> {
|
|
|
if let Some(node) = self.get_node(directory) {
|
|
|
// A node without a `DirstateEntry` was created to hold child
|
|
|
// nodes, and is therefore a directory.
|
|
|
Ok(node.entry.is_none())
|
|
|
} else {
|
|
|
Ok(false)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn pack(
|
|
|
&mut self,
|
|
|
parents: DirstateParents,
|
|
|
now: Timestamp,
|
|
|
) -> Result<Vec<u8>, DirstateError> {
|
|
|
// Optizimation (to be measured?): pre-compute size to avoid `Vec`
|
|
|
// reallocations
|
|
|
let mut size = parents.as_bytes().len();
|
|
|
for (path, node) in self.iter_nodes() {
|
|
|
if node.entry.is_some() {
|
|
|
size += packed_entry_size(
|
|
|
path,
|
|
|
node.copy_source.as_ref().map(|p| &**p),
|
|
|
)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
let mut packed = Vec::with_capacity(size);
|
|
|
packed.extend(parents.as_bytes());
|
|
|
|
|
|
let now: i32 = now.0.try_into().expect("time overflow");
|
|
|
for (path, opt_entry, copy_source) in self.iter_node_data_mut() {
|
|
|
if let Some(entry) = opt_entry {
|
|
|
clear_ambiguous_mtime(entry, now);
|
|
|
pack_entry(
|
|
|
path,
|
|
|
entry,
|
|
|
copy_source.as_ref().map(|p| &**p),
|
|
|
&mut packed,
|
|
|
);
|
|
|
}
|
|
|
}
|
|
|
Ok(packed)
|
|
|
}
|
|
|
|
|
|
fn set_all_dirs(&mut self) -> Result<(), DirstateMapError> {
|
|
|
// Do nothing, this `DirstateMap` does not a separate `all_dirs` that
|
|
|
// needs to be recomputed
|
|
|
Ok(())
|
|
|
}
|
|
|
|
|
|
fn set_dirs(&mut self) -> Result<(), DirstateMapError> {
|
|
|
// Do nothing, this `DirstateMap` does not a separate `dirs` that needs
|
|
|
// to be recomputed
|
|
|
Ok(())
|
|
|
}
|
|
|
|
|
|
fn status<'a>(
|
|
|
&'a mut self,
|
|
|
matcher: &'a (dyn Matcher + Sync),
|
|
|
root_dir: PathBuf,
|
|
|
ignore_files: Vec<PathBuf>,
|
|
|
options: StatusOptions,
|
|
|
) -> Result<(DirstateStatus<'a>, Vec<PatternFileWarning>), StatusError>
|
|
|
{
|
|
|
super::status::status(self, matcher, root_dir, ignore_files, options)
|
|
|
}
|
|
|
|
|
|
fn copy_map_len(&self) -> usize {
|
|
|
self.nodes_with_copy_source_count
|
|
|
}
|
|
|
|
|
|
fn copy_map_iter(&self) -> CopyMapIter<'_> {
|
|
|
Box::new(self.iter_nodes().filter_map(|(path, node)| {
|
|
|
node.copy_source
|
|
|
.as_ref()
|
|
|
.map(|copy_source| (path, &**copy_source))
|
|
|
}))
|
|
|
}
|
|
|
|
|
|
fn copy_map_contains_key(&self, key: &HgPath) -> bool {
|
|
|
if let Some(node) = self.get_node(key) {
|
|
|
node.copy_source.is_some()
|
|
|
} else {
|
|
|
false
|
|
|
}
|
|
|
}
|
|
|
|
|
|
fn copy_map_get(&self, key: &HgPath) -> Option<&HgPath> {
|
|
|
self.get_node(key)?.copy_source.as_ref().map(|p| &**p)
|
|
|
}
|
|
|
|
|
|
fn copy_map_remove(&mut self, key: &HgPath) -> Option<HgPathBuf> {
|
|
|
let count = &mut self.nodes_with_copy_source_count;
|
|
|
Self::get_node_mut(&mut self.root, key).and_then(|node| {
|
|
|
if node.copy_source.is_some() {
|
|
|
*count -= 1
|
|
|
}
|
|
|
node.copy_source.take().map(Cow::into_owned)
|
|
|
})
|
|
|
}
|
|
|
|
|
|
fn copy_map_insert(
|
|
|
&mut self,
|
|
|
key: HgPathBuf,
|
|
|
value: HgPathBuf,
|
|
|
) -> Option<HgPathBuf> {
|
|
|
let node = Self::get_or_insert_node(
|
|
|
&mut self.root,
|
|
|
&key,
|
|
|
WithBasename::to_cow_owned,
|
|
|
|_ancestor| {},
|
|
|
);
|
|
|
if node.copy_source.is_none() {
|
|
|
self.nodes_with_copy_source_count += 1
|
|
|
}
|
|
|
node.copy_source.replace(value.into()).map(Cow::into_owned)
|
|
|
}
|
|
|
|
|
|
fn len(&self) -> usize {
|
|
|
self.nodes_with_entry_count
|
|
|
}
|
|
|
|
|
|
fn contains_key(&self, key: &HgPath) -> bool {
|
|
|
self.get(key).is_some()
|
|
|
}
|
|
|
|
|
|
fn get(&self, key: &HgPath) -> Option<&DirstateEntry> {
|
|
|
self.get_node(key)?.entry.as_ref()
|
|
|
}
|
|
|
|
|
|
fn iter(&self) -> StateMapIter<'_> {
|
|
|
Box::new(self.iter_nodes().filter_map(|(path, node)| {
|
|
|
node.entry.as_ref().map(|entry| (path, entry))
|
|
|
}))
|
|
|
}
|
|
|
}
|
|
|
|
