refactor!: use same paths representation for unix/windows

crates/core/Cargo.toml

@@ -100,11 +100,13 @@ enum-map = { workspace = true }
 enum-map-derive = "0.17.0"
 enumset = { version = "1.1.5", features = ["serde"] }
 gethostname = "0.5.0"
+globset = "0.4.15"
 humantime = "2.1.0"
 itertools = "0.13.0"
 quick_cache = "0.6.9"
 shell-words = "1.1.0"
 strum = { version = "0.26.3", features = ["derive"] }
+typed-path = "0.10.0"
 zstd = "0.13.2"
 
 [target.'cfg(not(windows))'.dependencies]
@@ -123,7 +125,6 @@ xattr = "1"
 anyhow = { workspace = true }
 expect-test = "1.5.0"
 flate2 = "1.0.35"
-globset = "0.4.15"
 insta = { version = "1.41.1", features = ["redactions", "ron"] }
 mockall = "0.13"
 pretty_assertions = "1.4.1"

crates/core/src/archiver.rs

@@ -3,11 +3,10 @@ pub(crate) mod parent;
 pub(crate) mod tree;
 pub(crate) mod tree_archiver;
 
-use std::path::{Path, PathBuf};
-
 use chrono::Local;
 use log::warn;
 use pariter::{scope, IteratorExt};
+use typed_path::UnixPathBuf;
 
 use crate::{
     archiver::{
@@ -126,8 +125,7 @@ impl<'a, BE: DecryptFullBackend, I: ReadGlobalIndex> Archiver<'a, BE, I> {
     pub fn archive<R>(
         mut self,
         src: &R,
-        backup_path: &Path,
-        as_path: Option<&PathBuf>,
+        as_path: Option<&UnixPathBuf>,
         skip_identical_parent: bool,
         no_scan: bool,
         p: &impl Progress,
@@ -157,9 +155,7 @@ impl<'a, BE: DecryptFullBackend, I: ReadGlobalIndex> Archiver<'a, BE, I> {
                 }
                 Ok(ReadSourceEntry { path, node, open }) => {
                     let snapshot_path = if let Some(as_path) = as_path {
-                        as_path
-                            .clone()
-                            .join(path.strip_prefix(backup_path).unwrap())
+                        as_path.clone().join(path)
                     } else {
                         path
                     };

crates/core/src/archiver/parent.rs

@@ -1,7 +1,4 @@
-use std::{
-    cmp::Ordering,
-    ffi::{OsStr, OsString},
-};
+use std::cmp::Ordering;
 
 use log::warn;
 
@@ -124,20 +121,20 @@ impl Parent {
     /// # Returns
     ///
     /// The parent node with the given name, or `None` if the parent node is not found.
-    fn p_node(&mut self, name: &OsStr) -> Option<&Node> {
+    fn p_node(&mut self, name: &[u8]) -> Option<&Node> {
         match &self.tree {
             None => None,
             Some(tree) => {
                 let p_nodes = &tree.nodes;
                 loop {
                     match p_nodes.get(self.node_idx) {
                         None => break None,
-                        Some(p_node) => match p_node.name().as_os_str().cmp(name) {
-                            Ordering::Less => self.node_idx += 1,
+                        Some(p_node) => match name.cmp(&p_node.name()) {
+                            Ordering::Greater => self.node_idx += 1,
                             Ordering::Equal => {
                                 break Some(p_node);
                             }
-                            Ordering::Greater => {
+                            Ordering::Less => {
                                 break None;
                             }
                         },
@@ -161,7 +158,7 @@ impl Parent {
     /// # Note
     ///
     /// TODO: This function does not check whether the given node is a directory.
-    fn is_parent(&mut self, node: &Node, name: &OsStr) -> ParentResult<&Node> {
+    fn is_parent(&mut self, node: &Node, name: &[u8]) -> ParentResult<&Node> {
         // use new variables as the mutable borrow is used later
         let ignore_ctime = self.ignore_ctime;
         let ignore_inode = self.ignore_inode;
@@ -190,12 +187,7 @@ impl Parent {
     ///
     /// * `be` - The backend to read from.
     /// * `name` - The name of the parent node.
-    fn set_dir(
-        &mut self,
-        be: &impl DecryptReadBackend,
-        index: &impl ReadGlobalIndex,
-        name: &OsStr,
-    ) {
+    fn set_dir(&mut self, be: &impl DecryptReadBackend, index: &impl ReadGlobalIndex, name: &[u8]) {
         let tree = self.p_node(name).and_then(|p_node| {
             p_node.subtree.map_or_else(
                 || {
@@ -257,7 +249,7 @@ impl Parent {
         &mut self,
         be: &impl DecryptReadBackend,
         index: &impl ReadGlobalIndex,
-        item: TreeType<O, OsString>,
+        item: TreeType<O, Vec<u8>>,
     ) -> Result<ItemWithParent<O>, TreeStackEmptyError> {
         let result = match item {
             TreeType::NewTree((path, node, tree)) => {

crates/core/src/archiver/tree.rs

@@ -1,9 +1,6 @@
-use std::{ffi::OsString, path::PathBuf};
+use crate::backend::node::{Metadata, Node, NodeType};
 
-use crate::{
-    backend::node::{Metadata, Node, NodeType},
-    blob::tree::comp_to_osstr,
-};
+use typed_path::{Component, UnixPathBuf};
 
 /// `TreeIterator` turns an Iterator yielding items with paths and Nodes into an
 /// Iterator which ensures that all subdirectories are visited and closed.
@@ -18,7 +15,7 @@
     /// The original Iterator.
     iter: I,
     /// The current path.
-    path: PathBuf,
+    path: UnixPathBuf,
     /// The current item.
     item: Option<T>,
 }
@@ -31,7 +28,7 @@
         let item = iter.next();
         Self {
             iter,
-            path: PathBuf::new(),
+            path: UnixPathBuf::new(),
             item,
         }
     }
@@ -49,32 +46,25 @@
 #[derive(Debug)]
 pub(crate) enum TreeType<T, U> {
     /// New tree to be inserted.
-    NewTree((PathBuf, Node, U)),
+    NewTree((UnixPathBuf, Node, U)),
     /// A pseudo item which indicates that a tree is finished.
     EndTree,
     /// Original item.
-    Other((PathBuf, Node, T)),
+    Other((UnixPathBuf, Node, T)),
 }
 
-impl<I, O> Iterator for TreeIterator<(PathBuf, Node, O), I>
+impl<I, O> Iterator for TreeIterator<(UnixPathBuf, Node, O), I>
 where
-    I: Iterator<Item = (PathBuf, Node, O)>,
+    I: Iterator<Item = (UnixPathBuf, Node, O)>,
 {
-    type Item = TreeType<O, OsString>;
+    type Item = TreeType<O, Vec<u8>>;
     fn next(&mut self) -> Option<Self::Item> {
         match &self.item {
             None => {
                 if self.path.pop() {
                     Some(TreeType::EndTree)
                 } else {
-                    // Check if we still have a path prefix open...
-                    match self.path.components().next() {
-                        Some(std::path::Component::Prefix(..)) => {
-                            self.path = PathBuf::new();
-                            Some(TreeType::EndTree)
-                        }
-                        _ => None,
-                    }
+                    None
                 }
             }
             Some((path, node, _)) => {
@@ -84,24 +74,25 @@
                         Some(TreeType::EndTree)
                     }
                     Ok(missing_dirs) => {
-                        for comp in missing_dirs.components() {
-                            self.path.push(comp);
-                            // process next normal path component - other components are simply ignored
-                            if let Some(p) = comp_to_osstr(comp).ok().flatten() {
-                                if node.is_dir() && path == &self.path {
-                                    let (path, node, _) = self.item.take().unwrap();
-                                    self.item = self.iter.next();
-                                    let name = node.name();
-                                    return Some(TreeType::NewTree((path, node, name)));
-                                }
-                                // Use mode 755 for missing dirs, so they can be accessed
-                                let meta = Metadata {
-                                    mode: Some(0o755),
-                                    ..Default::default()
-                                };
-                                let node = Node::new_node(&p, NodeType::Dir, meta);
-                                return Some(TreeType::NewTree((self.path.clone(), node, p)));
+                        if let Some(p) = missing_dirs.components().next() {
+                            self.path.push(p);
+                            if node.is_dir() && path == &self.path {
+                                let (path, node, _) = self.item.take().unwrap();
+                                self.item = self.iter.next();
+                                let name = node.name().to_vec();
+                                return Some(TreeType::NewTree((path, node, name)));
                             }
+                            // Use mode 755 for missing dirs, so they can be accessed
+                            let meta = Metadata {
+                                mode: Some(0o755),
+                                ..Default::default()
+                            };
+                            let node = Node::new_node(p.as_bytes(), NodeType::Dir, meta);
+                            return Some(TreeType::NewTree((
+                                self.path.clone(),
+                                node,
+                                p.as_bytes().to_vec(),
+                            )));
                         }
                         // there wasn't any normal path component to process - return current item
                         let item = self.item.take().unwrap();

crates/core/src/archiver/tree_archiver.rs

@@ -1,7 +1,6 @@
-use std::path::{Path, PathBuf};
-
 use bytesize::ByteSize;
 use log::{debug, trace};
+use typed_path::{UnixPath, UnixPathBuf};
 
 use crate::{
     archiver::{parent::ParentResult, tree::TreeType},
@@ -30,7 +29,7 @@ pub(crate) struct TreeArchiver<'a, BE: DecryptWriteBackend, I: ReadGlobalIndex>
     /// The current tree.
     tree: Tree,
     /// The stack of trees.
-    stack: Vec<(PathBuf, Node, ParentResult<TreeId>, Tree)>,
+    stack: Vec<(UnixPathBuf, Node, ParentResult<TreeId>, Tree)>,
     /// The index to read from.
     index: &'a I,
     /// The packer to write to.
@@ -129,7 +128,7 @@ impl<'a, BE: DecryptWriteBackend, I: ReadGlobalIndex> TreeArchiver<'a, BE, I> {
     /// * `path` - The path of the file.
     /// * `node` - The node of the file.
     /// * `parent` - The parent result of the file.
-    fn add_file(&mut self, path: &Path, node: Node, parent: &ParentResult<()>, size: u64) {
+    fn add_file(&mut self, path: &UnixPath, node: Node, parent: &ParentResult<()>, size: u64) {
         let filename = path.join(node.name());
         match parent {
             ParentResult::Matched(()) => {
@@ -164,7 +163,11 @@ impl<'a, BE: DecryptWriteBackend, I: ReadGlobalIndex> TreeArchiver<'a, BE, I> {
     /// # Returns
     ///
     /// The id of the tree.
-    fn backup_tree(&mut self, path: &Path, parent: &ParentResult<TreeId>) -> RusticResult<TreeId> {
+    fn backup_tree(
+        &mut self,
+        path: &UnixPath,
+        parent: &ParentResult<TreeId>,
+    ) -> RusticResult<TreeId> {
         let (chunk, id) = self.tree.serialize().map_err(|err| {
             RusticError::with_source(
                 ErrorKind::Internal,
@@ -224,7 +227,7 @@ impl<'a, BE: DecryptWriteBackend, I: ReadGlobalIndex> TreeArchiver<'a, BE, I> {
         parent_tree: Option<TreeId>,
     ) -> RusticResult<(TreeId, SnapshotSummary)> {
         let parent = parent_tree.map_or(ParentResult::NotFound, ParentResult::Matched);
-        let id = self.backup_tree(&PathBuf::new(), &parent)?;
+        let id = self.backup_tree(UnixPath::new(&[]), &parent)?;
         let stats = self.tree_packer.finalize()?;
         stats.apply(&mut self.summary, BlobType::Tree);
 

crates/core/src/backend.rs

@@ -20,6 +20,7 @@
 use mockall::mock;
 
 use serde_derive::{Deserialize, Serialize};
+use typed_path::UnixPathBuf;
 
 use crate::{
     backend::node::{Metadata, Node, NodeType},
@@ -31,8 +32,8 @@
 #[derive(thiserror::Error, Debug, displaydoc::Display)]
 #[non_exhaustive]
 pub enum BackendErrorKind {
-    /// Path is not allowed: `{0:?}`
-    PathNotAllowed(PathBuf),
+    /// Path is not allowed: `{0}`
+    PathNotAllowed(String),
 }
 
 pub(crate) type BackendResult<T> = Result<T, BackendErrorKind>;
@@ -416,7 +417,7 @@
 #[derive(Debug, Clone)]
 pub struct ReadSourceEntry<O> {
     /// The path of the entry.
-    pub path: PathBuf,
+    pub path: UnixPathBuf,
 
     /// The node information of the entry.
     pub node: Node,
@@ -426,10 +427,11 @@
 }
 
 impl<O> ReadSourceEntry<O> {
-    fn from_path(path: PathBuf, open: Option<O>) -> BackendResult<Self> {
+    fn from_path(path: UnixPathBuf, open: Option<O>) -> BackendResult<Self> {
         let node = Node::new_node(
-            path.file_name()
-                .ok_or_else(|| BackendErrorKind::PathNotAllowed(path.clone()))?,
+            path.file_name().ok_or_else(|| {
+                BackendErrorKind::PathNotAllowed(path.to_string_lossy().to_string())
+            })?,
             NodeType::File,
             Metadata::default(),
         );

crates/core/src/backend/childstdout.rs

@@ -1,10 +1,11 @@
 use std::{
     iter::{once, Once},
-    path::PathBuf,
     process::{Child, ChildStdout, Command, Stdio},
     sync::Mutex,
 };
 
+use typed_path::UnixPathBuf;
+
 use crate::{
     backend::{ReadSource, ReadSourceEntry},
     error::{ErrorKind, RusticError, RusticResult},
@@ -15,7 +16,7 @@ use crate::{
 #[derive(Debug)]
 pub struct ChildStdoutSource {
     /// The path of the stdin entry.
-    path: PathBuf,
+    path: UnixPathBuf,
     /// The child process
     ///
     /// # Note
@@ -30,14 +31,14 @@ pub struct ChildStdoutSource {
 
 impl ChildStdoutSource {
     /// Creates a new `ChildSource`.
-    pub fn new(cmd: &CommandInput, path: PathBuf) -> RusticResult<Self> {
+    pub fn new(cmd: &CommandInput, path: UnixPathBuf) -> RusticResult<Self> {
         let process = Command::new(cmd.command())
             .args(cmd.args())
             .stdout(Stdio::piped())
             .spawn()
             .map_err(|err| CommandInputErrorKind::ProcessExecutionFailed {
                 command: cmd.clone(),
-                path: path.clone(),
+                path: path.to_string_lossy().to_string(),
                 source: err,
             });