mirror of
https://github.com/rojo-rbx/rojo.git
synced 2026-10-23 14:01:37 +00:00
Complete implementation of the 3-pass matching algorithm for ambiguous path handling
- Finalized the transition from a duplicate-name blacklist system to a comprehensive 3-pass matching algorithm for both syncback and forward operations, enhancing the handling of ambiguous paths. - Integrated a new `matching.lua` module to facilitate instance matching during hydration, utilizing unique name matching, class name narrowing, and structural fingerprinting. - Updated various components, including `ChangeBatcher`, `Reconciler`, and `snapshot` modules, to leverage the new matching logic, ensuring robust file management and improved performance. - Removed legacy duplicate handling code and streamlined the encoding process for instances with duplicate names. These changes significantly enhance the clarity and efficiency of file operations, paving the way for improved project management and user experience.
This commit is contained in:
Joe
parent
cc77a2cd8a
commit
d6162ac210
21 changed files with 2507 additions and 846 deletions
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@ -5,14 +5,11 @@ use std::{
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use anyhow::Context;
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use memofs::{DirEntry, Vfs};
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use rbx_dom_weak::types::Ref;
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use crate::{
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snapshot::{InstanceContext, InstanceMetadata, InstanceSnapshot, InstigatingSource},
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snapshot_middleware::Middleware,
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syncback::{
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hash_instance, name_needs_slugify, slugify_name, strip_middleware_extension, FsSnapshot,
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SyncbackReturn, SyncbackSnapshot,
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},
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syncback::{hash_instance, FsSnapshot, SyncbackReturn, SyncbackSnapshot},
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};
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use super::{meta_file::DirectoryMetadata, snapshot_from_vfs};
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@ -137,205 +134,174 @@ pub fn syncback_dir<'sync>(
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pub fn syncback_dir_no_meta<'sync>(
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snapshot: &SyncbackSnapshot<'sync>,
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) -> anyhow::Result<SyncbackReturn<'sync>> {
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use crate::syncback::matching::match_children;
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let new_inst = snapshot.new_inst();
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let mut children = Vec::new();
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let mut removed_children = Vec::new();
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// taken_names tracks claimed bare slugs (without extensions) for dedup.
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// Pre-seeded from old tree children's slugified instance names so that
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// new-only children correctly dedup against existing siblings, regardless
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// of iteration order (see plan: fix_stem-level_dedup §2).
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// taken_names tracks claimed full filesystem name components (slug +
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// extension for files, directory name for dirs), lowercased.
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let mut taken_names: HashSet<String> = HashSet::new();
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// Detect duplicate child names (case-insensitive for file system safety).
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// We skip duplicates instead of failing, tracking them in stats.
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let mut child_name_counts: HashMap<String, usize> = HashMap::new();
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for child_ref in new_inst.children() {
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let child = snapshot.get_new_instance(*child_ref).unwrap();
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let lower_name = child.name.to_lowercase();
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*child_name_counts.entry(lower_name).or_insert(0) += 1;
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}
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let duplicate_names: HashSet<String> = child_name_counts
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.into_iter()
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.filter(|(_, count)| *count > 1)
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.map(|(name, _)| name)
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.collect();
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// Record duplicate names in stats tracker
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if !duplicate_names.is_empty() {
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let inst_path = crate::syncback::inst_path(snapshot.new_tree(), snapshot.new);
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// Count total instances being skipped (sum of all duplicates)
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let mut total_skipped = 0;
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for child_ref in new_inst.children() {
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let child = snapshot.get_new_instance(*child_ref).unwrap();
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if duplicate_names.contains(&child.name.to_lowercase()) {
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total_skipped += 1;
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}
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}
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let duplicate_list: Vec<&str> = duplicate_names.iter().map(|s| s.as_str()).collect();
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snapshot
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.stats()
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.record_duplicate_names_batch(&inst_path, &duplicate_list, total_skipped);
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}
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if let Some(old_inst) = snapshot.old_inst() {
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let mut old_child_map = HashMap::with_capacity(old_inst.children().len());
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for child in old_inst.children() {
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let inst = snapshot.get_old_instance(*child).unwrap();
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old_child_map.insert(inst.name(), inst);
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}
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// Pre-seed taken_names from old children's actual filesystem dedup keys
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// so that new-only children correctly dedup against existing siblings.
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// We derive keys from relevant_paths (the real filename on disk) rather
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// than slugifying instance names, because an old instance may already
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// have a tilde suffix (e.g. A_B~1.luau from prior dedup) that the bare
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// slug wouldn't capture.
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// Only in incremental mode: in clean mode, old_ref is forced to None
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// for all children, so every child is treated as new and pre-seeding
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// would cause false collisions (spurious ~1 suffixes).
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if snapshot.data.is_incremental() {
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for inst in old_child_map.values() {
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if let Some(path) = inst.metadata().relevant_paths.first() {
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if let Some(filename) = path.file_name().and_then(|f| f.to_str()) {
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let middleware = inst.metadata().middleware.unwrap_or(Middleware::Dir);
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let dedup_key =
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strip_middleware_extension(filename, middleware).to_lowercase();
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taken_names.insert(dedup_key);
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}
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} else {
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// Fallback (shouldn't happen for old instances with disk presence)
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let name = inst.name();
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let slug = if name_needs_slugify(name) {
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slugify_name(name).to_lowercase()
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} else {
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name.to_lowercase()
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};
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taken_names.insert(slug);
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}
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}
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}
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// Sort children alphabetically for deterministic dedup ordering.
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// Without this, DOM iteration order determines which sibling gets
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// the base slug vs ~1, causing non-deterministic output across
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// different serializations of the same place.
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let mut sorted_children: Vec<_> = new_inst
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.children()
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.iter()
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.map(|r| (*r, snapshot.get_new_instance(*r).unwrap().name.clone()))
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.collect();
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sorted_children.sort_by(|(_, a), (_, b)| a.cmp(b));
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for (new_child_ref, _) in &sorted_children {
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let new_child = snapshot.get_new_instance(*new_child_ref).unwrap();
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// Skip children with duplicate names - cannot reliably sync them
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if duplicate_names.contains(&new_child.name.to_lowercase()) {
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old_child_map.remove(new_child.name.as_str());
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continue;
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}
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// Skip instances of ignored classes
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if snapshot.should_ignore_class(&new_child.class) {
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// Also remove from old_child_map so it won't be marked as removed
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old_child_map.remove(new_child.name.as_str());
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// Filter new children: exclude ignored classes and ignoreTrees.
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let eligible_new: Vec<Ref> = new_inst
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.children()
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.iter()
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.copied()
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.filter(|r| {
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let child = snapshot.get_new_instance(*r).unwrap();
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if snapshot.should_ignore_class(&child.class) {
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log::debug!(
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"Skipping instance {} because its class {} is ignored",
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new_child.name,
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new_child.class
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child.name,
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child.class
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);
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continue;
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return false;
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}
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// Skip instances matching ignoreTrees
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if snapshot.should_ignore_tree(*new_child_ref) {
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old_child_map.remove(new_child.name.as_str());
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continue;
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if snapshot.should_ignore_tree(*r) {
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return false;
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}
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if let Some(old_child) = old_child_map.remove(new_child.name.as_str()) {
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if old_child.metadata().relevant_paths.is_empty() {
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true
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})
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.collect();
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if let Some(old_inst) = snapshot.old_inst() {
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// Build old_ref → InstanceWithMeta lookup for metadata access.
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let mut old_meta_map: HashMap<Ref, _> = HashMap::new();
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for &child_ref in old_inst.children() {
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let inst = snapshot.get_old_instance(child_ref).unwrap();
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old_meta_map.insert(child_ref, inst);
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}
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// Filter old children: exclude those without disk presence, from
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// project files, or with ignored classes.
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let eligible_old: Vec<Ref> = old_inst
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.children()
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.iter()
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.copied()
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.filter(|r| {
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let inst = old_meta_map.get(r).unwrap();
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if inst.metadata().relevant_paths.is_empty() {
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log::debug!(
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"Skipping instance {} because it doesn't exist on the disk",
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old_child.name()
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"Excluding old instance {} from matching (no disk presence)",
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inst.name()
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);
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continue;
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} else if matches!(
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old_child.metadata().instigating_source,
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return false;
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}
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if matches!(
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inst.metadata().instigating_source,
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Some(InstigatingSource::ProjectNode { .. })
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) {
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log::debug!(
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"Skipping instance {} because it originates in a project file",
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old_child.name()
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"Excluding old instance {} from matching (project file)",
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inst.name()
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);
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continue;
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return false;
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}
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if snapshot.should_ignore_class(inst.class_name().as_str()) {
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return false;
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}
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true
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})
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.collect();
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// Run the 3-pass matching algorithm to pair new ↔ old children.
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let match_result = match_children(
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&eligible_new,
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&eligible_old,
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snapshot.new_tree(),
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snapshot.old_tree(),
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None, // TODO: pass precomputed hashes for better similarity
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None,
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);
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// Pre-seed taken_names from ALL matched old children's filesystem
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// names so that unmatched new children correctly dedup.
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if snapshot.data.is_incremental() {
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for &(_, old_ref) in &match_result.matched {
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if let Some(inst) = old_meta_map.get(&old_ref) {
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if let Some(path) = inst.metadata().relevant_paths.first() {
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if let Some(filename) = path.file_name().and_then(|f| f.to_str()) {
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taken_names.insert(filename.to_lowercase());
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}
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}
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}
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}
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// Also seed from unmatched old (they still occupy filesystem names).
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for &old_ref in &match_result.unmatched_old {
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if let Some(inst) = old_meta_map.get(&old_ref) {
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if let Some(path) = inst.metadata().relevant_paths.first() {
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if let Some(filename) = path.file_name().and_then(|f| f.to_str()) {
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taken_names.insert(filename.to_lowercase());
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}
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}
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}
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// This child exists in both doms. Pass it on.
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let (child_snap, _needs_meta, dedup_key) = snapshot.with_joined_path(
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*new_child_ref,
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Some(old_child.id()),
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&taken_names,
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)?;
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taken_names.insert(dedup_key.to_lowercase());
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children.push(child_snap);
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} else {
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// The child only exists in the the new dom
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let (child_snap, _needs_meta, dedup_key) =
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snapshot.with_joined_path(*new_child_ref, None, &taken_names)?;
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taken_names.insert(dedup_key.to_lowercase());
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children.push(child_snap);
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}
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}
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// Any children that are in the old dom but not the new one are removed.
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// Filter out instances of ignored classes and duplicates from removal.
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removed_children.extend(old_child_map.into_values().filter(|inst| {
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// Don't remove duplicates - we're skipping them entirely
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if duplicate_names.contains(&inst.name().to_lowercase()) {
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return false;
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// Sort matched pairs by new child name for deterministic ordering.
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let mut sorted_matched = match_result.matched;
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sorted_matched.sort_by(|(a, _), (b, _)| {
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let a_name = &snapshot.get_new_instance(*a).unwrap().name;
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let b_name = &snapshot.get_new_instance(*b).unwrap().name;
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a_name.cmp(b_name)
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});
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// Process matched pairs: preserve existing filesystem assignment.
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for (new_ref, old_ref) in &sorted_matched {
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let (child_snap, _needs_meta, dedup_key) = snapshot.with_joined_path(
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*new_ref,
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Some(*old_ref),
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&taken_names,
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)?;
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taken_names.insert(dedup_key.to_lowercase());
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children.push(child_snap);
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}
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// Sort unmatched new by name for deterministic dedup ordering.
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let mut sorted_unmatched_new = match_result.unmatched_new;
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sorted_unmatched_new.sort_by(|a, b| {
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let a_name = &snapshot.get_new_instance(*a).unwrap().name;
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let b_name = &snapshot.get_new_instance(*b).unwrap().name;
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a_name.cmp(b_name)
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});
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// Process unmatched new children: generate new filenames.
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for new_ref in &sorted_unmatched_new {
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let (child_snap, _needs_meta, dedup_key) =
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snapshot.with_joined_path(*new_ref, None, &taken_names)?;
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taken_names.insert(dedup_key.to_lowercase());
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children.push(child_snap);
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}
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// Unmatched old children are removed (instance was deleted).
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// Filter out ignored classes from removal.
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for old_ref in match_result.unmatched_old {
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if let Some(inst) = old_meta_map.get(&old_ref) {
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if !snapshot.should_ignore_class(inst.class_name().as_str()) {
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removed_children.push(*inst);
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} else {
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log::debug!(
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"Not removing instance {} because its class {} is ignored",
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inst.name(),
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inst.class_name()
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);
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}
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}
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if snapshot.should_ignore_class(inst.class_name().as_str()) {
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log::debug!(
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"Not removing instance {} because its class {} is ignored",
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inst.name(),
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inst.class_name()
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);
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false
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} else {
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true
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}
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}));
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}
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} else {
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// There is no old instance. Just add every child.
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// No old instance (clean mode). All children are new.
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// Sort alphabetically for deterministic dedup ordering.
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let mut sorted_children: Vec<_> = new_inst
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.children()
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.iter()
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.map(|r| (*r, snapshot.get_new_instance(*r).unwrap().name.clone()))
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.collect();
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sorted_children.sort_by(|(_, a), (_, b)| a.cmp(b));
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let mut sorted_new = eligible_new;
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sorted_new.sort_by(|a, b| {
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let a_name = &snapshot.get_new_instance(*a).unwrap().name;
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let b_name = &snapshot.get_new_instance(*b).unwrap().name;
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a_name.cmp(b_name)
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});
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for (new_child_ref, _) in &sorted_children {
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let new_child = snapshot.get_new_instance(*new_child_ref).unwrap();
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// Skip children with duplicate names - cannot reliably sync them
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if duplicate_names.contains(&new_child.name.to_lowercase()) {
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continue;
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}
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// Skip instances of ignored classes
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if snapshot.should_ignore_class(&new_child.class) {
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log::debug!(
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"Skipping instance {} because its class {} is ignored",
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new_child.name,
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new_child.class
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);
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continue;
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}
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// Skip instances matching ignoreTrees
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if snapshot.should_ignore_tree(*new_child_ref) {
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continue;
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}
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for new_child_ref in &sorted_new {
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let (child_snap, _needs_meta, dedup_key) =
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snapshot.with_joined_path(*new_child_ref, None, &taken_names)?;
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taken_names.insert(dedup_key.to_lowercase());
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|
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@ -1,6 +1,6 @@
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use std::{
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borrow::Cow,
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collections::{BTreeMap, HashMap, VecDeque},
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collections::{BTreeMap, HashMap, HashSet, VecDeque},
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path::Path,
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};
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|
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@ -21,7 +21,7 @@ use crate::{
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},
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snapshot_middleware::Middleware,
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syncback::{
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filter_properties, inst_path, name_needs_slugify, slugify_name, strip_middleware_extension,
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filter_properties, inst_path, name_needs_slugify, slugify_name,
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FsSnapshot, SyncbackReturn, SyncbackSnapshot,
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},
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variant_eq::variant_eq,
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|
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@ -584,30 +584,87 @@ pub fn syncback_project<'sync>(
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project_node_property_syncback_no_path(snapshot, new_inst, node);
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}
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// Detect duplicate children using case-insensitive comparison.
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// Project KEYS are unique by JSON definition; only filesystem children
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// under project nodes may collide. Duplicates are skipped with a warning
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// for now -- the dedup system (Phase 1c/1d) will handle them properly.
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let mut new_duplicate_names: HashSet<String> = HashSet::new();
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{
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let mut seen: HashSet<String> = HashSet::new();
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for child_ref in new_inst.children() {
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let child = snapshot
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.get_new_instance(*child_ref)
|
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.expect("all children of Instances should be in new DOM");
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let lower = child.name.to_lowercase();
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if !seen.insert(lower.clone()) {
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new_duplicate_names.insert(lower);
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}
|
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}
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}
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if !new_duplicate_names.is_empty() {
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let parent_path = inst_path(snapshot.new_tree(), new_inst.referent());
|
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for child_ref in new_inst.children() {
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let child = snapshot
|
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.get_new_instance(*child_ref)
|
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.expect("all children of Instances should be in new DOM");
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if new_duplicate_names.contains(&child.name.to_lowercase()) {
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log::warn!(
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"Skipping duplicate-named child '{}' under ProjectNode '{}' -- \
|
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cannot reliably sync yet. Full path: {}/{}",
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child.name,
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parent_path,
|
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parent_path,
|
||||
child.name
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
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for child_ref in new_inst.children() {
|
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let child = snapshot
|
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.get_new_instance(*child_ref)
|
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.expect("all children of Instances should be in new DOM");
|
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if new_child_map.insert(&child.name, child).is_some() {
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let parent_path = inst_path(snapshot.new_tree(), new_inst.referent());
|
||||
anyhow::bail!(
|
||||
"Instances that are direct children of an Instance that is made by a project file \
|
||||
must have a unique name.\nThe child '{}' is duplicated in the place file.\n\
|
||||
Full path: {}/{}", child.name, parent_path, child.name
|
||||
);
|
||||
if !new_duplicate_names.contains(&child.name.to_lowercase()) {
|
||||
new_child_map.insert(&child.name, child);
|
||||
}
|
||||
}
|
||||
|
||||
let mut old_duplicate_names: HashSet<String> = HashSet::new();
|
||||
{
|
||||
let mut seen: HashSet<String> = HashSet::new();
|
||||
for child_ref in old_inst.children() {
|
||||
let child = snapshot
|
||||
.get_old_instance(*child_ref)
|
||||
.expect("all children of Instances should be in old DOM");
|
||||
let lower = child.name().to_lowercase();
|
||||
if !seen.insert(lower.clone()) {
|
||||
old_duplicate_names.insert(lower);
|
||||
}
|
||||
}
|
||||
}
|
||||
if !old_duplicate_names.is_empty() {
|
||||
let parent_path = inst_path(snapshot.old_tree(), old_inst.id());
|
||||
for child_ref in old_inst.children() {
|
||||
let child = snapshot
|
||||
.get_old_instance(*child_ref)
|
||||
.expect("all children of Instances should be in old DOM");
|
||||
if old_duplicate_names.contains(&child.name().to_lowercase()) {
|
||||
log::warn!(
|
||||
"Skipping duplicate-named child '{}' under ProjectNode '{}' -- \
|
||||
cannot reliably sync yet. Full path: {}/{}",
|
||||
child.name(),
|
||||
parent_path,
|
||||
parent_path,
|
||||
child.name()
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
for child_ref in old_inst.children() {
|
||||
let child = snapshot
|
||||
.get_old_instance(*child_ref)
|
||||
.expect("all children of Instances should be in old DOM");
|
||||
if old_child_map.insert(child.name(), child).is_some() {
|
||||
let parent_path = inst_path(snapshot.old_tree(), old_inst.id());
|
||||
anyhow::bail!(
|
||||
"Instances that are direct children of an Instance that is made by a project file \
|
||||
must have a unique name.\nThe child '{}' is duplicated on the file system.\n\
|
||||
Full path: {}/{}", child.name(), parent_path, child.name()
|
||||
);
|
||||
if !old_duplicate_names.contains(&child.name().to_lowercase()) {
|
||||
old_child_map.insert(child.name(), child);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -654,33 +711,27 @@ pub fn syncback_project<'sync>(
|
|||
// All of the children in this loop are by their nature not in the
|
||||
// project, so we just need to run syncback on them.
|
||||
//
|
||||
// Track taken names (bare slugs) per parent directory so siblings
|
||||
// under the same parent deduplicate against each other.
|
||||
// Track taken names (full filesystem name components, lowercased)
|
||||
// per parent directory so siblings under the same parent deduplicate
|
||||
// against each other using filesystem-level collision detection.
|
||||
let mut taken_names_per_dir: std::collections::HashMap<
|
||||
std::path::PathBuf,
|
||||
std::collections::HashSet<String>,
|
||||
> = std::collections::HashMap::new();
|
||||
|
||||
// Pre-seed taken_names from old children's actual filesystem dedup keys
|
||||
// so that new-only children correctly dedup against existing siblings.
|
||||
// We derive keys from relevant_paths (the real filename on disk) rather
|
||||
// than slugifying instance names, because an old instance may already
|
||||
// have a tilde suffix (e.g. A_B~1.luau from prior dedup) that the bare
|
||||
// slug wouldn't capture.
|
||||
// Only in incremental mode: in clean mode, old_ref is forced to None
|
||||
// for all children, so every child is treated as new and pre-seeding
|
||||
// would cause false collisions (spurious ~1 suffixes).
|
||||
// Pre-seed taken_names from old children's actual filesystem names
|
||||
// (full filename including extension) so that new-only children
|
||||
// correctly dedup against existing siblings.
|
||||
if snapshot.data.is_incremental() {
|
||||
if let Some(parent_path) = ref_to_path_map.get(&new_inst.referent()) {
|
||||
let taken = taken_names_per_dir.entry(parent_path.clone()).or_default();
|
||||
for old_child in old_child_map.values() {
|
||||
if let Some(path) = old_child.metadata().relevant_paths.first() {
|
||||
if let Some(filename) = path.file_name().and_then(|f| f.to_str()) {
|
||||
let middleware =
|
||||
old_child.metadata().middleware.unwrap_or(Middleware::Dir);
|
||||
let dedup_key =
|
||||
strip_middleware_extension(filename, middleware).to_lowercase();
|
||||
taken.insert(dedup_key);
|
||||
// Use the full filename (including extension) as the
|
||||
// dedup key so that "Foo" (dir) and "Foo.server.luau"
|
||||
// (file) do NOT collide.
|
||||
taken.insert(filename.to_lowercase());
|
||||
}
|
||||
} else {
|
||||
// Fallback (shouldn't happen for old instances with disk presence)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue