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-rw-r--r--vendor/gix-traverse/.cargo-checksum.json1
-rw-r--r--vendor/gix-traverse/Cargo.toml37
-rw-r--r--vendor/gix-traverse/src/commit.rs377
-rw-r--r--vendor/gix-traverse/src/lib.rs9
-rw-r--r--vendor/gix-traverse/src/tree/breadthfirst.rs107
-rw-r--r--vendor/gix-traverse/src/tree/mod.rs69
-rw-r--r--vendor/gix-traverse/src/tree/recorder.rs139
7 files changed, 739 insertions, 0 deletions
diff --git a/vendor/gix-traverse/.cargo-checksum.json b/vendor/gix-traverse/.cargo-checksum.json
new file mode 100644
index 000000000..9c643b372
--- /dev/null
+++ b/vendor/gix-traverse/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"d0a9e70396726bbe2cc88935eebb6cd25585d1bddfafb5778ad86b5a0657255e","src/commit.rs":"25ac85fe6c317bdf195dff6fbbe703853117bd58bd267f6d501622d217d2175d","src/lib.rs":"e393d36a432571c44efd478739fb5ff6779b188618aac2058e1d45af809ecc54","src/tree/breadthfirst.rs":"cb6c05f8ecc8c09e0297e00a439e26722911427d73309969c04e90d1d13f8b55","src/tree/mod.rs":"7d8c982aabf8b0cf4952fe542cd7623e17a171c2c689e141b5a711549c5e708f","src/tree/recorder.rs":"da18f92a15b76d886e57e10e586951287110cb8062ecff1f4c11195838eb2625"},"package":"dd9a4a07bb22168dc79c60e1a6a41919d198187ca83d8a5940ad8d7122a45df3"} \ No newline at end of file
diff --git a/vendor/gix-traverse/Cargo.toml b/vendor/gix-traverse/Cargo.toml
new file mode 100644
index 000000000..0f8006a1d
--- /dev/null
+++ b/vendor/gix-traverse/Cargo.toml
@@ -0,0 +1,37 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+rust-version = "1.64"
+name = "gix-traverse"
+version = "0.24.0"
+authors = ["Sebastian Thiel <sebastian.thiel@icloud.com>"]
+include = ["src/**/*"]
+autotests = false
+description = "A WIP crate of the gitoxide project"
+license = "MIT/Apache-2.0"
+repository = "https://github.com/Byron/gitoxide"
+
+[lib]
+doctest = false
+
+[dependencies.gix-hash]
+version = "^0.10.2"
+
+[dependencies.gix-hashtable]
+version = "^0.1.2"
+
+[dependencies.gix-object]
+version = "^0.28.0"
+
+[dependencies.thiserror]
+version = "1.0.32"
diff --git a/vendor/gix-traverse/src/commit.rs b/vendor/gix-traverse/src/commit.rs
new file mode 100644
index 000000000..890fde2a9
--- /dev/null
+++ b/vendor/gix-traverse/src/commit.rs
@@ -0,0 +1,377 @@
+/// An iterator over the ancestors one or more starting commits
+pub struct Ancestors<Find, Predicate, StateMut> {
+ find: Find,
+ predicate: Predicate,
+ state: StateMut,
+ parents: Parents,
+ sorting: Sorting,
+}
+
+/// Specify how to handle commit parents during traversal.
+#[derive(Copy, Clone)]
+pub enum Parents {
+ /// Traverse all parents, useful for traversing the entire ancestry.
+ All,
+ /// Only traverse along the first parent, which commonly ignores all branches.
+ First,
+}
+
+impl Default for Parents {
+ fn default() -> Self {
+ Parents::All
+ }
+}
+
+/// Specify how to sort commits during traversal.
+#[derive(Copy, Clone)]
+pub enum Sorting {
+ /// Commits are sorted as they are mentioned in the commit graph.
+ Topological,
+ /// Commits are sorted by their commit time in descending order, that is newest first.
+ ///
+ /// The sorting applies to all currently queued commit ids and thus is full.
+ ///
+ /// # Performance
+ ///
+ /// This mode benefits greatly from having an object_cache in `find()`
+ /// to avoid having to lookup each commit twice.
+ ByCommitTimeNewestFirst,
+ /// This sorting is similar to `ByCommitTimeNewestFirst`, but adds a cutoff to not return commits older than
+ /// a given time, stopping the iteration once no younger commits is queued to be traversed.
+ ///
+ /// As the query is usually repeated with different cutoff dates, this search mode benefits greatly from an object cache.
+ ByCommitTimeNewestFirstCutoffOlderThan {
+ /// The amount of seconds since unix epoch, the same value obtained by any `gix_date::Time` structure and the way git counts time.
+ time_in_seconds_since_epoch: u32,
+ },
+}
+
+impl Default for Sorting {
+ fn default() -> Self {
+ Sorting::Topological
+ }
+}
+
+///
+pub mod ancestors {
+ use std::{
+ borrow::{Borrow, BorrowMut},
+ collections::VecDeque,
+ iter::FromIterator,
+ };
+
+ use gix_hash::{oid, ObjectId};
+ use gix_hashtable::HashSet;
+ use gix_object::CommitRefIter;
+
+ use crate::commit::{Ancestors, Parents, Sorting};
+
+ /// The error is part of the item returned by the [Ancestors] iterator.
+ #[derive(Debug, thiserror::Error)]
+ #[allow(missing_docs)]
+ pub enum Error {
+ #[error("The commit {oid} could not be found")]
+ FindExisting {
+ oid: ObjectId,
+ source: Box<dyn std::error::Error + Send + Sync + 'static>,
+ },
+ #[error(transparent)]
+ ObjectDecode(#[from] gix_object::decode::Error),
+ }
+
+ type TimeInSeconds = u32;
+
+ /// The state used and potentially shared by multiple graph traversals.
+ #[derive(Default, Clone)]
+ pub struct State {
+ next: VecDeque<(ObjectId, TimeInSeconds)>,
+ buf: Vec<u8>,
+ seen: HashSet<ObjectId>,
+ parents_buf: Vec<u8>,
+ }
+
+ impl State {
+ fn clear(&mut self) {
+ self.next.clear();
+ self.buf.clear();
+ self.seen.clear();
+ }
+ }
+
+ /// Builder
+ impl<Find, Predicate, StateMut> Ancestors<Find, Predicate, StateMut> {
+ /// Change our commit parent handling mode to the given one.
+ pub fn parents(mut self, mode: Parents) -> Self {
+ self.parents = mode;
+ self
+ }
+ }
+
+ /// Builder
+ impl<Find, Predicate, StateMut, E> Ancestors<Find, Predicate, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ /// Set the sorting method, either topological or by author date
+ pub fn sorting(mut self, sorting: Sorting) -> Result<Self, Error> {
+ self.sorting = sorting;
+ if !matches!(self.sorting, Sorting::Topological) {
+ let mut cutoff_time_storage = self.sorting.cutoff_time().map(|cot| (cot, Vec::new()));
+ let state = self.state.borrow_mut();
+ for (commit_id, commit_time) in state.next.iter_mut() {
+ let commit_iter = (self.find)(commit_id, &mut state.buf).map_err(|err| Error::FindExisting {
+ oid: *commit_id,
+ source: err.into(),
+ })?;
+ let time = commit_iter.committer()?.time.seconds_since_unix_epoch;
+ match &mut cutoff_time_storage {
+ Some((cutoff_time, storage)) if time >= *cutoff_time => {
+ storage.push((*commit_id, time));
+ }
+ Some(_) => {}
+ None => *commit_time = time,
+ }
+ }
+ let mut v = match cutoff_time_storage {
+ Some((_, storage)) => storage,
+ None => Vec::from_iter(std::mem::take(&mut state.next).into_iter()),
+ };
+ v.sort_by(|a, b| a.1.cmp(&b.1).reverse());
+ state.next = v.into();
+ }
+ Ok(self)
+ }
+ }
+
+ /// Initialization
+ impl<Find, StateMut, E> Ancestors<Find, fn(&oid) -> bool, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ /// Create a new instance.
+ ///
+ /// * `find` - a way to lookup new object data during traversal by their ObjectId, writing their data into buffer and returning
+ /// an iterator over commit tokens if the object is present and is a commit. Caching should be implemented within this function
+ /// as needed.
+ /// * `state` - all state used for the traversal. If multiple traversals are performed, allocations can be minimized by reusing
+ /// this state.
+ /// * `tips`
+ /// * the starting points of the iteration, usually commits
+ /// * each commit they lead to will only be returned once, including the tip that started it
+ pub fn new(tips: impl IntoIterator<Item = impl Into<ObjectId>>, state: StateMut, find: Find) -> Self {
+ Self::filtered(tips, state, find, |_| true)
+ }
+ }
+
+ /// Initialization
+ impl<Find, Predicate, StateMut, E> Ancestors<Find, Predicate, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ Predicate: FnMut(&oid) -> bool,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ /// Create a new instance with commit filtering enabled.
+ ///
+ /// * `find` - a way to lookup new object data during traversal by their ObjectId, writing their data into buffer and returning
+ /// an iterator over commit tokens if the object is present and is a commit. Caching should be implemented within this function
+ /// as needed.
+ /// * `state` - all state used for the traversal. If multiple traversals are performed, allocations can be minimized by reusing
+ /// this state.
+ /// * `tips`
+ /// * the starting points of the iteration, usually commits
+ /// * each commit they lead to will only be returned once, including the tip that started it
+ /// * `predicate` - indicate whether a given commit should be included in the result as well
+ /// as whether its parent commits should be traversed.
+ pub fn filtered(
+ tips: impl IntoIterator<Item = impl Into<ObjectId>>,
+ mut state: StateMut,
+ find: Find,
+ mut predicate: Predicate,
+ ) -> Self {
+ let tips = tips.into_iter();
+ {
+ let state = state.borrow_mut();
+ state.clear();
+ state.next.reserve(tips.size_hint().0);
+ for tip in tips.map(Into::into) {
+ let was_inserted = state.seen.insert(tip);
+ if was_inserted && predicate(&tip) {
+ state.next.push_back((tip, 0));
+ }
+ }
+ }
+ Self {
+ find,
+ predicate,
+ state,
+ parents: Default::default(),
+ sorting: Default::default(),
+ }
+ }
+ }
+ /// Access
+ impl<Find, Predicate, StateMut> Ancestors<Find, Predicate, StateMut>
+ where
+ StateMut: Borrow<State>,
+ {
+ /// Return an iterator for accessing more of the current commits data.
+ pub fn commit_iter(&self) -> CommitRefIter<'_> {
+ CommitRefIter::from_bytes(&self.state.borrow().buf)
+ }
+ }
+
+ impl<Find, Predicate, StateMut, E> Iterator for Ancestors<Find, Predicate, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ Predicate: FnMut(&oid) -> bool,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ type Item = Result<ObjectId, Error>;
+
+ fn next(&mut self) -> Option<Self::Item> {
+ if matches!(self.parents, Parents::First) {
+ self.next_by_topology()
+ } else {
+ match self.sorting {
+ Sorting::Topological => self.next_by_topology(),
+ Sorting::ByCommitTimeNewestFirst => self.next_by_commit_date(None),
+ Sorting::ByCommitTimeNewestFirstCutoffOlderThan {
+ time_in_seconds_since_epoch,
+ } => self.next_by_commit_date(time_in_seconds_since_epoch.into()),
+ }
+ }
+ }
+ }
+
+ impl Sorting {
+ /// If not topo sort, provide the cutoff date if present.
+ fn cutoff_time(&self) -> Option<u32> {
+ match self {
+ Sorting::ByCommitTimeNewestFirstCutoffOlderThan {
+ time_in_seconds_since_epoch,
+ } => Some(*time_in_seconds_since_epoch),
+ _ => None,
+ }
+ }
+ }
+
+ /// Utilities
+ impl<Find, Predicate, StateMut, E> Ancestors<Find, Predicate, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ Predicate: FnMut(&oid) -> bool,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ fn next_by_commit_date(&mut self, cutoff_older_than: Option<TimeInSeconds>) -> Option<Result<ObjectId, Error>> {
+ let state = self.state.borrow_mut();
+
+ let (oid, _commit_time) = state.next.pop_front()?;
+ match (self.find)(&oid, &mut state.buf) {
+ Ok(commit_iter) => {
+ let mut count = 0;
+ for token in commit_iter {
+ count += 1;
+ let is_first = count == 1;
+ match token {
+ Ok(gix_object::commit::ref_iter::Token::Tree { .. }) => continue,
+ Ok(gix_object::commit::ref_iter::Token::Parent { id }) => {
+ let was_inserted = state.seen.insert(id);
+ if !(was_inserted && (self.predicate)(&id)) {
+ if is_first && matches!(self.parents, Parents::First) {
+ break;
+ } else {
+ continue;
+ }
+ }
+
+ let parent = (self.find)(id.as_ref(), &mut state.parents_buf).ok();
+ let parent_commit_time = parent
+ .and_then(|parent| {
+ parent
+ .committer()
+ .ok()
+ .map(|committer| committer.time.seconds_since_unix_epoch)
+ })
+ .unwrap_or_default();
+
+ let pos = match state.next.binary_search_by(|c| c.1.cmp(&parent_commit_time).reverse())
+ {
+ Ok(_) => None,
+ Err(pos) => Some(pos),
+ };
+ match cutoff_older_than {
+ Some(cutoff_older_than) if parent_commit_time < cutoff_older_than => continue,
+ Some(_) | None => match pos {
+ Some(pos) => state.next.insert(pos, (id, parent_commit_time)),
+ None => state.next.push_back((id, parent_commit_time)),
+ },
+ }
+
+ if is_first && matches!(self.parents, Parents::First) {
+ break;
+ }
+ }
+ Ok(_unused_token) => break,
+ Err(err) => return Some(Err(err.into())),
+ }
+ }
+ }
+ Err(err) => {
+ return Some(Err(Error::FindExisting {
+ oid,
+ source: err.into(),
+ }))
+ }
+ }
+ Some(Ok(oid))
+ }
+ }
+
+ /// Utilities
+ impl<Find, Predicate, StateMut, E> Ancestors<Find, Predicate, StateMut>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Result<CommitRefIter<'a>, E>,
+ Predicate: FnMut(&oid) -> bool,
+ StateMut: BorrowMut<State>,
+ E: std::error::Error + Send + Sync + 'static,
+ {
+ fn next_by_topology(&mut self) -> Option<Result<ObjectId, Error>> {
+ let state = self.state.borrow_mut();
+ let (oid, _commit_time) = state.next.pop_front()?;
+ match (self.find)(&oid, &mut state.buf) {
+ Ok(commit_iter) => {
+ for token in commit_iter {
+ match token {
+ Ok(gix_object::commit::ref_iter::Token::Tree { .. }) => continue,
+ Ok(gix_object::commit::ref_iter::Token::Parent { id }) => {
+ let was_inserted = state.seen.insert(id);
+ if was_inserted && (self.predicate)(&id) {
+ state.next.push_back((id, 0));
+ }
+ if matches!(self.parents, Parents::First) {
+ break;
+ }
+ }
+ Ok(_a_token_past_the_parents) => break,
+ Err(err) => return Some(Err(err.into())),
+ }
+ }
+ }
+ Err(err) => {
+ return Some(Err(Error::FindExisting {
+ oid,
+ source: err.into(),
+ }))
+ }
+ }
+ Some(Ok(oid))
+ }
+ }
+}
diff --git a/vendor/gix-traverse/src/lib.rs b/vendor/gix-traverse/src/lib.rs
new file mode 100644
index 000000000..3cf6d2b3a
--- /dev/null
+++ b/vendor/gix-traverse/src/lib.rs
@@ -0,0 +1,9 @@
+//! Various ways to traverse commit graphs and trees with implementations as iterator
+#![deny(missing_docs, rust_2018_idioms)]
+#![forbid(unsafe_code)]
+
+/// Commit traversal
+pub mod commit;
+
+/// Tree traversal
+pub mod tree;
diff --git a/vendor/gix-traverse/src/tree/breadthfirst.rs b/vendor/gix-traverse/src/tree/breadthfirst.rs
new file mode 100644
index 000000000..b0c7ffdf5
--- /dev/null
+++ b/vendor/gix-traverse/src/tree/breadthfirst.rs
@@ -0,0 +1,107 @@
+use std::collections::VecDeque;
+
+use gix_hash::ObjectId;
+
+/// The error is part of the item returned by the [`traverse()`][impl_::traverse()] function.
+#[derive(Debug, thiserror::Error)]
+#[allow(missing_docs)]
+pub enum Error {
+ #[error("The tree {oid} could not be found")]
+ NotFound { oid: ObjectId },
+ #[error("The delegate cancelled the operation")]
+ Cancelled,
+ #[error(transparent)]
+ ObjectDecode(#[from] gix_object::decode::Error),
+}
+
+/// The state used and potentially shared by multiple tree traversals.
+#[derive(Default, Clone)]
+pub struct State {
+ next: VecDeque<ObjectId>,
+ buf: Vec<u8>,
+}
+
+impl State {
+ fn clear(&mut self) {
+ self.next.clear();
+ self.buf.clear();
+ }
+}
+
+pub(crate) mod impl_ {
+ use std::borrow::BorrowMut;
+
+ use gix_hash::oid;
+ use gix_object::{tree::EntryMode, TreeRefIter};
+
+ use super::{Error, State};
+ use crate::tree::Visit;
+
+ /// Start a breadth-first iteration over the `root` trees entries.
+ ///
+ /// * `root`
+ /// * the tree to iterate in a nested fashion.
+ /// * `state` - all state used for the iteration. If multiple iterations are performed, allocations can be minimized by reusing
+ /// this state.
+ /// * `find` - a way to lookup new object data during traversal by their ObjectId, writing their data into buffer and returning
+ /// an iterator over entries if the object is present and is a tree. Caching should be implemented within this function
+ /// as needed. The return value is `Option<TreeIter>` which degenerates all error information. Not finding a commit should also
+ /// be considered an errors as all objects in the tree DAG should be present in the database. Hence [`Error::NotFound`] should
+ /// be escalated into a more specific error if its encountered by the caller.
+ /// * `delegate` - A way to observe entries and control the iteration while allowing the optimizer to let you pay only for what you use.
+ pub fn traverse<StateMut, Find, V>(
+ root: TreeRefIter<'_>,
+ mut state: StateMut,
+ mut find: Find,
+ delegate: &mut V,
+ ) -> Result<(), Error>
+ where
+ Find: for<'a> FnMut(&oid, &'a mut Vec<u8>) -> Option<TreeRefIter<'a>>,
+ StateMut: BorrowMut<State>,
+ V: Visit,
+ {
+ let state = state.borrow_mut();
+ state.clear();
+ let mut tree = root;
+ loop {
+ for entry in tree {
+ let entry = entry?;
+ match entry.mode {
+ EntryMode::Tree => {
+ use crate::tree::visit::Action::*;
+ delegate.push_path_component(entry.filename);
+ let action = delegate.visit_tree(&entry);
+ match action {
+ Skip => {}
+ Continue => {
+ delegate.pop_path_component();
+ delegate.push_back_tracked_path_component(entry.filename);
+ state.next.push_back(entry.oid.to_owned())
+ }
+ Cancel => {
+ return Err(Error::Cancelled);
+ }
+ }
+ }
+ _non_tree => {
+ delegate.push_path_component(entry.filename);
+ if delegate.visit_nontree(&entry).cancelled() {
+ return Err(Error::Cancelled);
+ }
+ }
+ }
+ delegate.pop_path_component();
+ }
+ match state.next.pop_front() {
+ Some(oid) => {
+ delegate.pop_front_tracked_path_and_set_current();
+ match find(&oid, &mut state.buf) {
+ Some(tree_iter) => tree = tree_iter,
+ None => return Err(Error::NotFound { oid: oid.to_owned() }),
+ }
+ }
+ None => break Ok(()),
+ }
+ }
+ }
+}
diff --git a/vendor/gix-traverse/src/tree/mod.rs b/vendor/gix-traverse/src/tree/mod.rs
new file mode 100644
index 000000000..5ae01736c
--- /dev/null
+++ b/vendor/gix-traverse/src/tree/mod.rs
@@ -0,0 +1,69 @@
+use std::collections::VecDeque;
+
+use gix_object::bstr::{BStr, BString};
+
+/// A trait to allow responding to a traversal designed to observe all entries in a tree, recursively while keeping track of
+/// paths if desired.
+pub trait Visit {
+ /// Sets the full path path in front of the queue so future calls to push and pop components affect it instead.
+ fn pop_front_tracked_path_and_set_current(&mut self);
+ /// Append a `component` to the end of a path, which may be empty.
+ fn push_back_tracked_path_component(&mut self, component: &BStr);
+ /// Append a `component` to the end of a path, which may be empty.
+ fn push_path_component(&mut self, component: &BStr);
+ /// Removes the last component from the path, which may leave it empty.
+ fn pop_path_component(&mut self);
+
+ /// Observe a tree entry that is a tree and return an instruction whether to continue or not.
+ /// [`Action::Skip`][visit::Action::Skip] can be used to prevent traversing it, for example if it's known to the caller already.
+ ///
+ /// The implementation may use the current path to learn where in the tree the change is located.
+ fn visit_tree(&mut self, entry: &gix_object::tree::EntryRef<'_>) -> visit::Action;
+
+ /// Observe a tree entry that is NO tree and return an instruction whether to continue or not.
+ /// [`Action::Skip`][visit::Action::Skip] has no effect here.
+ ///
+ /// The implementation may use the current path to learn where in the tree the change is located.
+ fn visit_nontree(&mut self, entry: &gix_object::tree::EntryRef<'_>) -> visit::Action;
+}
+
+/// A [Visit][Visit] implementation to record every observed change and keep track of the changed paths.
+///
+/// Recorders can also be instructed to track the filename only, or no location at all.
+#[derive(Clone, Debug)]
+pub struct Recorder {
+ path_deque: VecDeque<BString>,
+ path: BString,
+ /// How to track the location.
+ location: Option<recorder::Location>,
+ /// The observed entries.
+ pub records: Vec<recorder::Entry>,
+}
+
+///
+pub mod visit {
+ /// What to do after an entry was [recorded][super::Visit::visit_tree()].
+ #[derive(Clone, Copy, PartialOrd, PartialEq, Ord, Eq, Hash)]
+ pub enum Action {
+ /// Continue the traversal of entries.
+ Continue,
+ /// Stop the traversal of entries, making this te last call to [`visit_(tree|nontree)(…)`][super::Visit::visit_nontree()].
+ Cancel,
+ /// Don't dive into the entry, skipping children effectively. Only useful in [`visit_tree(…)`][super::Visit::visit_tree()].
+ Skip,
+ }
+
+ impl Action {
+ /// Returns true if this action means to stop the traversal.
+ pub fn cancelled(&self) -> bool {
+ matches!(self, Action::Cancel)
+ }
+ }
+}
+
+///
+pub mod recorder;
+
+///
+pub mod breadthfirst;
+pub use breadthfirst::impl_::traverse as breadthfirst;
diff --git a/vendor/gix-traverse/src/tree/recorder.rs b/vendor/gix-traverse/src/tree/recorder.rs
new file mode 100644
index 000000000..d6144c9b9
--- /dev/null
+++ b/vendor/gix-traverse/src/tree/recorder.rs
@@ -0,0 +1,139 @@
+use gix_hash::ObjectId;
+use gix_object::{
+ bstr::{BStr, BString, ByteSlice, ByteVec},
+ tree,
+};
+
+use crate::tree::{visit::Action, Recorder, Visit};
+
+/// Describe how to track the location of an entry.
+#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+pub enum Location {
+ /// Track the entire path, relative to the repository.
+ Path,
+ /// Keep only the file-name as location, which may be enough for some calculations.
+ ///
+ /// This is less expensive than tracking the entire `Path`.
+ FileName,
+}
+
+/// An owned entry as observed by a call to [`visit_(tree|nontree)(…)`][Visit::visit_tree()], enhanced with the full path to it.
+/// Otherwise similar to [`gix_object::tree::EntryRef`].
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct Entry {
+ /// The kind of entry, similar to entries in a unix directory tree.
+ pub mode: tree::EntryMode,
+ /// The full path to the entry. A root entry would be `d`, and a file `a` within the directory would be `d/a`.
+ ///
+ /// This is independent of the platform and the path separators actually used there.
+ pub filepath: BString,
+ /// The id of the entry which can be used to locate it in an object database.
+ pub oid: ObjectId,
+}
+
+impl Entry {
+ fn new(entry: &tree::EntryRef<'_>, filepath: BString) -> Self {
+ Entry {
+ filepath,
+ oid: entry.oid.to_owned(),
+ mode: entry.mode,
+ }
+ }
+}
+
+impl Default for Recorder {
+ fn default() -> Self {
+ Recorder {
+ path_deque: Default::default(),
+ path: Default::default(),
+ location: Location::Path.into(),
+ records: vec![],
+ }
+ }
+}
+
+impl Recorder {
+ fn pop_element(&mut self) {
+ if let Some(pos) = self.path.rfind_byte(b'/') {
+ self.path.resize(pos, 0);
+ } else {
+ self.path.clear();
+ }
+ }
+
+ fn push_element(&mut self, name: &BStr) {
+ if !self.path.is_empty() {
+ self.path.push(b'/');
+ }
+ self.path.push_str(name);
+ }
+}
+
+/// Builder
+impl Recorder {
+ /// Obtain a copy of the currently tracked, full path of the entry.
+ pub fn track_location(mut self, location: Option<Location>) -> Self {
+ self.location = location;
+ self
+ }
+}
+
+/// Access
+impl Recorder {
+ /// Obtain a copy of the currently tracked, full path of the entry.
+ pub fn path_clone(&self) -> BString {
+ self.path.clone()
+ }
+
+ /// Return the currently set path.
+ pub fn path(&self) -> &BStr {
+ self.path.as_ref()
+ }
+}
+
+impl Visit for Recorder {
+ fn pop_front_tracked_path_and_set_current(&mut self) {
+ if let Some(Location::Path) = self.location {
+ self.path = self
+ .path_deque
+ .pop_front()
+ .expect("every call is matched with push_tracked_path_component");
+ }
+ }
+
+ fn push_back_tracked_path_component(&mut self, component: &BStr) {
+ if let Some(Location::Path) = self.location {
+ self.push_element(component);
+ self.path_deque.push_back(self.path.clone());
+ }
+ }
+
+ fn push_path_component(&mut self, component: &BStr) {
+ match self.location {
+ None => {}
+ Some(Location::Path) => {
+ self.push_element(component);
+ }
+ Some(Location::FileName) => {
+ self.path.clear();
+ self.path.extend_from_slice(component);
+ }
+ }
+ }
+
+ fn pop_path_component(&mut self) {
+ if let Some(Location::Path) = self.location {
+ self.pop_element()
+ }
+ }
+
+ fn visit_tree(&mut self, entry: &tree::EntryRef<'_>) -> Action {
+ self.records.push(Entry::new(entry, self.path_clone()));
+ Action::Continue
+ }
+
+ fn visit_nontree(&mut self, entry: &tree::EntryRef<'_>) -> Action {
+ self.records.push(Entry::new(entry, self.path_clone()));
+ Action::Continue
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-06 13:26:19 +0000