Move step to a dedicated mod and replace it with an enum

Cargo.lock

@@ -3619,6 +3619,7 @@ dependencies = [
  "csv",
  "deserr",
  "either",
+ "enum-iterator",
  "filter-parser",
  "flatten-serde-json",
  "fst",

crates/milli/Cargo.toml

@@ -101,6 +101,7 @@ thread_local = "1.1.8"
 allocator-api2 = "0.2.18"
 rustc-hash = "2.0.0"
 uell = "0.1.0"
+enum-iterator = "2.1.0"
 
 [dev-dependencies]
 mimalloc = { version = "0.1.43", default-features = false }

crates/milli/src/update/new/extract/faceted/extract_facets.rs

@@ -18,6 +18,7 @@ use crate::update::new::indexer::document_changes::{
     extract, DocumentChangeContext, DocumentChanges, Extractor, IndexingContext, Progress,
 };
 use crate::update::new::ref_cell_ext::RefCellExt as _;
+use crate::update::new::steps::Step;
 use crate::update::new::thread_local::{FullySend, ThreadLocal};
 use crate::update::new::DocumentChange;
 use crate::update::GrenadParameters;
@@ -337,7 +338,6 @@ fn truncate_str(s: &str) -> &str {
 }
 
 impl FacetedDocidsExtractor {
-    #[allow(clippy::too_many_arguments)]
     #[tracing::instrument(level = "trace", skip_all, target = "indexing::extract::faceted")]
     pub fn run_extraction<
         'pl,
@@ -354,9 +354,7 @@ impl FacetedDocidsExtractor {
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
         sender: &FieldIdDocidFacetSender,
-        finished_steps: u16,
-        total_steps: u16,
-        step_name: &'static str,
+        step: Step,
     ) -> Result<Vec<BalancedCaches<'extractor>>>
     where
         MSP: Fn() -> bool + Sync,
@@ -386,9 +384,7 @@ impl FacetedDocidsExtractor {
                 indexing_context,
                 extractor_allocs,
                 &datastore,
-                finished_steps,
-                total_steps,
-                step_name,
+                step,
             )?;
         }
 

crates/milli/src/update/new/extract/mod.rs

@@ -14,6 +14,7 @@ pub use searchable::*;
 pub use vectors::EmbeddingExtractor;
 
 use super::indexer::document_changes::{DocumentChanges, IndexingContext, Progress};
+use super::steps::Step;
 use super::thread_local::{FullySend, ThreadLocal};
 use crate::update::GrenadParameters;
 use crate::Result;
@@ -24,9 +25,7 @@ pub trait DocidsExtractor {
         document_changes: &DC,
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
-        finished_steps: u16,
-        total_steps: u16,
-        step_name: &'static str,
+        step: Step,
     ) -> Result<Vec<BalancedCaches<'extractor>>>
     where
         MSP: Fn() -> bool + Sync,

crates/milli/src/update/new/extract/searchable/extract_word_docids.rs

@@ -14,6 +14,7 @@ use crate::update::new::indexer::document_changes::{
     extract, DocumentChangeContext, DocumentChanges, Extractor, IndexingContext, Progress,
 };
 use crate::update::new::ref_cell_ext::RefCellExt as _;
+use crate::update::new::steps::Step;
 use crate::update::new::thread_local::{FullySend, MostlySend, ThreadLocal};
 use crate::update::new::DocumentChange;
 use crate::update::GrenadParameters;
@@ -249,9 +250,7 @@ impl WordDocidsExtractors {
         document_changes: &DC,
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
-        finished_steps: u16,
-        total_steps: u16,
-        step_name: &'static str,
+        step: Step,
     ) -> Result<WordDocidsCaches<'extractor>>
     where
         MSP: Fn() -> bool + Sync,
@@ -306,9 +305,7 @@ impl WordDocidsExtractors {
                 indexing_context,
                 extractor_allocs,
                 &datastore,
-                finished_steps,
-                total_steps,
-                step_name,
+                step,
             )?;
         }
 

crates/milli/src/update/new/extract/searchable/mod.rs

@@ -16,6 +16,7 @@ use super::DocidsExtractor;
 use crate::update::new::indexer::document_changes::{
     extract, DocumentChangeContext, DocumentChanges, Extractor, IndexingContext, Progress,
 };
+use crate::update::new::steps::Step;
 use crate::update::new::thread_local::{FullySend, ThreadLocal};
 use crate::update::new::DocumentChange;
 use crate::update::GrenadParameters;
@@ -60,9 +61,7 @@ pub trait SearchableExtractor: Sized + Sync {
         document_changes: &DC,
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
-        finished_steps: u16,
-        total_steps: u16,
-        step_name: &'static str,
+        step: Step,
     ) -> Result<Vec<BalancedCaches<'extractor>>>
     where
         MSP: Fn() -> bool + Sync,
@@ -115,9 +114,7 @@ pub trait SearchableExtractor: Sized + Sync {
                 indexing_context,
                 extractor_allocs,
                 &datastore,
-                finished_steps,
-                total_steps,
-                step_name,
+                step,
             )?;
         }
 
@@ -142,9 +139,7 @@ impl<T: SearchableExtractor> DocidsExtractor for T {
         document_changes: &DC,
         indexing_context: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
         extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
-        finished_steps: u16,
-        total_steps: u16,
-        step_name: &'static str,
+        step: Step,
     ) -> Result<Vec<BalancedCaches<'extractor>>>
     where
         MSP: Fn() -> bool + Sync,
@@ -155,9 +150,7 @@ impl<T: SearchableExtractor> DocidsExtractor for T {
             document_changes,
             indexing_context,
             extractor_allocs,
-            finished_steps,
-            total_steps,
-            step_name,
+            step,
         )
     }
 }

crates/milli/src/update/new/facet_search_builder.rs

@@ -1,3 +1,4 @@
+use std::collections::hash_map::Entry;
 use std::collections::{BTreeSet, HashMap};
 
 use charabia::normalizer::NormalizerOption;
@@ -83,9 +84,9 @@ impl<'indexer> FacetSearchBuilder<'indexer> {
     }
 
     fn locales(&mut self, field_id: FieldId) -> Option<&[Language]> {
-        if !self.localized_field_ids.contains_key(&field_id) {
+        if let Entry::Vacant(e) = self.localized_field_ids.entry(field_id) {
             let Some(field_name) = self.global_fields_ids_map.name(field_id) else {
-                unreachable!("Field id {} not found in the global fields ids map", field_id);
+                unreachable!("Field id {field_id} not found in the global fields ids map");
             };
 
             let locales = self
@@ -94,7 +95,7 @@ impl<'indexer> FacetSearchBuilder<'indexer> {
                 .find(|rule| rule.match_str(field_name))
                 .map(|rule| rule.locales.clone());
 
-            self.localized_field_ids.insert(field_id, locales);
+            e.insert(locales);
         }
 
         self.localized_field_ids.get(&field_id).unwrap().as_deref()

crates/milli/src/update/new/indexer/document_changes.rs

@@ -8,6 +8,7 @@ use rayon::iter::IndexedParallelIterator;
 use super::super::document_change::DocumentChange;
 use crate::fields_ids_map::metadata::FieldIdMapWithMetadata;
 use crate::update::new::parallel_iterator_ext::ParallelIteratorExt as _;
+use crate::update::new::steps::Step;
 use crate::update::new::thread_local::{FullySend, MostlySend, ThreadLocal};
 use crate::{FieldsIdsMap, GlobalFieldsIdsMap, Index, InternalError, Result};
 
@@ -191,7 +192,6 @@ where
 
 const CHUNK_SIZE: usize = 100;
 
-#[allow(clippy::too_many_arguments)]
 pub fn extract<
     'pl,        // covariant lifetime of the underlying payload
     'extractor, // invariant lifetime of extractor_alloc
@@ -217,9 +217,7 @@ pub fn extract<
     }: IndexingContext<'fid, 'indexer, 'index, MSP, SP>,
     extractor_allocs: &'extractor mut ThreadLocal<FullySend<Bump>>,
     datastore: &'data ThreadLocal<EX::Data>,
-    finished_steps: u16,
-    total_steps: u16,
-    step_name: &'static str,
+    step: Step,
 ) -> Result<()>
 where
     EX: Extractor<'extractor>,
@@ -233,7 +231,7 @@ where
         extractor_alloc.0.reset();
     }
 
-    let total_documents = document_changes.len();
+    let total_documents = document_changes.len() as u32;
 
     let pi = document_changes.iter(CHUNK_SIZE);
     pi.enumerate().try_arc_for_each_try_init(
@@ -253,14 +251,13 @@ where
             if (must_stop_processing)() {
                 return Err(Arc::new(InternalError::AbortedIndexation.into()));
             }
-            let finished_documents = finished_documents * CHUNK_SIZE;
+            let finished_documents = (finished_documents * CHUNK_SIZE) as u32;
 
-            (send_progress)(Progress {
-                finished_steps,
-                total_steps,
-                step_name,
-                finished_total_documents: Some((finished_documents as u32, total_documents as u32)),
-            });
+            (send_progress)(Progress::from_step_documents(
+                step,
+                finished_documents,
+                total_documents,
+            ));
 
             // Clean up and reuse the document-specific allocator
             context.doc_alloc.reset();
@@ -279,12 +276,7 @@ where
         },
     )?;
 
-    (send_progress)(Progress {
-        finished_steps,
-        total_steps,
-        step_name,
-        finished_total_documents: Some((total_documents as u32, total_documents as u32)),
-    });
+    (send_progress)(Progress::from_step_documents(step, total_documents, total_documents));
 
     Ok(())
 }
@@ -295,3 +287,20 @@ pub struct Progress {
     pub step_name: &'static str,
     pub finished_total_documents: Option<(u32, u32)>,
 }
+
+impl Progress {
+    pub fn from_step(step: Step) -> Self {
+        Self {
+            finished_steps: step.finished_steps(),
+            total_steps: Step::total_steps(),
+            step_name: step.name(),
+            finished_total_documents: None,
+        }
+    }
+    pub fn from_step_documents(step: Step, finished_documents: u32, total_documents: u32) -> Self {
+        Self {
+            finished_total_documents: Some((finished_documents, total_documents)),
+            ..Progress::from_step(step)
+        }
+    }
+}

crates/milli/src/update/new/indexer/document_deletion.rs

@@ -96,6 +96,7 @@ mod test {
         extract, DocumentChangeContext, Extractor, IndexingContext,
     };
     use crate::update::new::indexer::DocumentDeletion;
+    use crate::update::new::steps::Step;
     use crate::update::new::thread_local::{MostlySend, ThreadLocal};
     use crate::update::new::DocumentChange;
     use crate::DocumentId;
@@ -175,9 +176,7 @@ mod test {
                 context,
                 &mut extractor_allocs,
                 &datastore,
-                0,
-                1,
-                "test",
+                Step::ExtractingDocuments,
             )
             .unwrap();
 

crates/milli/src/update/new/indexer/mod.rs

@@ -20,6 +20,7 @@ use super::channel::*;
 use super::extract::*;
 use super::facet_search_builder::FacetSearchBuilder;
 use super::merger::FacetFieldIdsDelta;
+use super::steps::Step;
 use super::thread_local::ThreadLocal;
 use super::word_fst_builder::{PrefixData, PrefixDelta, WordFstBuilder};
 use super::words_prefix_docids::{
@@ -51,79 +52,6 @@ mod document_operation;
 mod partial_dump;
 mod update_by_function;
 
-mod steps {
-    pub const STEPS: &[&str] = &[
-        "extracting documents",
-        "extracting facets",
-        "extracting words",
-        "extracting word proximity",
-        "extracting embeddings",
-        "writing geo points",
-        "writing to database",
-        "writing embeddings to database",
-        "waiting for extractors",
-        "post-processing facets",
-        "post-processing words",
-        "finalizing",
-    ];
-
-    const fn step(step: u16) -> (u16, &'static str) {
-        (step, STEPS[step as usize])
-    }
-
-    pub const fn total_steps() -> u16 {
-        STEPS.len() as u16
-    }
-
-    pub const fn extract_documents() -> (u16, &'static str) {
-        step(0)
-    }
-
-    pub const fn extract_facets() -> (u16, &'static str) {
-        step(1)
-    }
-
-    pub const fn extract_words() -> (u16, &'static str) {
-        step(2)
-    }
-
-    pub const fn extract_word_proximity() -> (u16, &'static str) {
-        step(3)
-    }
-
-    pub const fn extract_embeddings() -> (u16, &'static str) {
-        step(4)
-    }
-
-    pub const fn extract_geo_points() -> (u16, &'static str) {
-        step(5)
-    }
-
-    pub const fn write_db() -> (u16, &'static str) {
-        step(6)
-    }
-
-    pub const fn write_embedding_db() -> (u16, &'static str) {
-        step(7)
-    }
-
-    pub const fn waiting_extractors() -> (u16, &'static str) {
-        step(8)
-    }
-
-    pub const fn post_processing_facets() -> (u16, &'static str) {
-        step(9)
-    }
-
-    pub const fn post_processing_words() -> (u16, &'static str) {
-        step(10)
-    }
-
-    pub const fn finalizing() -> (u16, &'static str) {
-        step(11)
-    }
-}
-
 /// This is the main function of this crate.
 ///
 /// Give it the output of the [`Indexer::document_changes`] method and it will execute it in the [`rayon::ThreadPool`].
@@ -166,8 +94,6 @@ where
         send_progress,
     };
 
-    let total_steps = steps::total_steps();
-
     let mut field_distribution = index.field_distribution(wtxn)?;
     let mut document_ids = index.documents_ids(wtxn)?;
 
@@ -188,15 +114,13 @@ where
             let document_sender = extractor_sender.documents();
             let document_extractor = DocumentsExtractor::new(&document_sender, embedders);
             let datastore = ThreadLocal::with_capacity(rayon::current_num_threads());
-            let (finished_steps, step_name) = steps::extract_documents();
+
             extract(document_changes,
                 &document_extractor,
                 indexing_context,
                 &mut extractor_allocs,
                 &datastore,
-                finished_steps,
-                total_steps,
-                step_name,
+                Step::ExtractingDocuments,
             )?;
 
             for document_extractor_data in datastore {
@@ -217,8 +141,6 @@ where
                 let span = tracing::trace_span!(target: "indexing::documents::extract", "faceted");
                 let _entered = span.enter();
 
-                let (finished_steps, step_name) = steps::extract_facets();
-
                 facet_field_ids_delta = merge_and_send_facet_docids(
                     FacetedDocidsExtractor::run_extraction(
                         grenad_parameters,
@@ -226,9 +148,7 @@ where
                         indexing_context,
                         &mut extractor_allocs,
                         &extractor_sender.field_id_docid_facet_sender(),
-                        finished_steps,
-                        total_steps,
-                        step_name,
+                        Step::ExtractingFacets
                     )?,
                     FacetDatabases::new(index),
                     index,
@@ -239,7 +159,7 @@ where
             {
                 let span = tracing::trace_span!(target: "indexing::documents::extract", "word_docids");
                 let _entered = span.enter();
-                let (finished_steps, step_name) = steps::extract_words();
+
 
                 let WordDocidsCaches {
                     word_docids,
@@ -252,9 +172,7 @@ where
                     document_changes,
                     indexing_context,
                     &mut extractor_allocs,
-                    finished_steps,
-                    total_steps,
-                    step_name,
+                    Step::ExtractingWords
                 )?;
 
                 // TODO Word Docids Merger
@@ -335,16 +253,13 @@ where
                 let span = tracing::trace_span!(target: "indexing::documents::extract", "word_pair_proximity_docids");
                 let _entered = span.enter();
 
-                let (finished_steps, step_name) = steps::extract_word_proximity();
 
                 let caches = <WordPairProximityDocidsExtractor as DocidsExtractor>::run_extraction(
                     grenad_parameters,
                     document_changes,
                     indexing_context,
                     &mut extractor_allocs,
-                    finished_steps,
-                    total_steps,
-                    step_name,
+                    Step::ExtractingWordProximity,
                 )?;
 
                 merge_and_send_docids(
@@ -368,8 +283,7 @@ where
                 let embedding_sender = extractor_sender.embeddings();
                 let extractor = EmbeddingExtractor::new(embedders, &embedding_sender, field_distribution, request_threads());
                 let mut datastore = ThreadLocal::with_capacity(rayon::current_num_threads());
-                let (finished_steps, step_name) = steps::extract_embeddings();
-                extract(document_changes, &extractor, indexing_context, &mut extractor_allocs, &datastore, finished_steps, total_steps, step_name)?;
+                extract(document_changes, &extractor, indexing_context, &mut extractor_allocs, &datastore, Step::ExtractingEmbeddings)?;
 
                 for config in &mut index_embeddings {
                     'data: for data in datastore.iter_mut() {
@@ -391,16 +305,13 @@ where
                     break 'geo;
                 };
                 let datastore = ThreadLocal::with_capacity(rayon::current_num_threads());
-                let (finished_steps, step_name) = steps::extract_geo_points();
                 extract(
                     document_changes,
                     &extractor,
                     indexing_context,
                     &mut extractor_allocs,
                     &datastore,
-                    finished_steps,
-                    total_steps,
-                    step_name,
+                    Step::WritingGeoPoints
                 )?;
 
                 merge_and_send_rtree(
@@ -430,8 +341,7 @@ where
             {
                 let span = tracing::trace_span!(target: "indexing::documents::extract", "FINISH");
                 let _entered = span.enter();
-                let (finished_steps, step_name) = steps::write_db();
-                (indexing_context.send_progress)(Progress { finished_steps, total_steps, step_name, finished_total_documents: None });
+                (indexing_context.send_progress)(Progress::from_step(Step::WritingToDatabase));
             }
 
             Result::Ok(facet_field_ids_delta)
@@ -512,13 +422,9 @@ where
                         let span = tracing::trace_span!(target: "indexing::vectors", parent: &indexer_span, "build");
                         let _entered = span.enter();
 
-                        let (finished_steps, step_name) = steps::write_embedding_db();
-                        (indexing_context.send_progress)(Progress {
-                            finished_steps,
-                            total_steps,
-                            step_name,
-                            finished_total_documents: None,
-                        });
+                        (indexing_context.send_progress)(Progress::from_step(
+                            Step::WritingEmbeddingsToDatabase,
+                        ));
 
                         for (_embedder_index, (_embedder_name, _embedder, writer, dimensions)) in
                             &mut arroy_writers
@@ -539,46 +445,21 @@ where
             }
         }
 
-        let (finished_steps, step_name) = steps::waiting_extractors();
-        (indexing_context.send_progress)(Progress {
-            finished_steps,
-            total_steps,
-            step_name,
-            finished_total_documents: None,
-        });
+        (indexing_context.send_progress)(Progress::from_step(Step::WaitingForExtractors));
 
         let facet_field_ids_delta = extractor_handle.join().unwrap()?;
 
-        let (finished_steps, step_name) = steps::post_processing_facets();
-        (indexing_context.send_progress)(Progress {
-            finished_steps,
-            total_steps,
-            step_name,
-            finished_total_documents: None,
-        });
+        (indexing_context.send_progress)(Progress::from_step(Step::PostProcessingFacets));
 
         compute_facet_search_database(index, wtxn, global_fields_ids_map)?;
         compute_facet_level_database(index, wtxn, facet_field_ids_delta)?;
 
-        let (finished_steps, step_name) = steps::post_processing_words();
-        (indexing_context.send_progress)(Progress {
-            finished_steps,
-            total_steps,
-            step_name,
-            finished_total_documents: None,
-        });
+        (indexing_context.send_progress)(Progress::from_step(Step::PostProcessingWords));
 
         if let Some(prefix_delta) = compute_word_fst(index, wtxn)? {
             compute_prefix_database(index, wtxn, prefix_delta)?;
         }
-
-        let (finished_steps, step_name) = steps::finalizing();
-        (indexing_context.send_progress)(Progress {
-            finished_steps,
-            total_steps,
-            step_name,
-            finished_total_documents: None,
-        });
+        (indexing_context.send_progress)(Progress::from_step(Step::Finalizing));
 
         Ok(()) as Result<_>
     })?;

crates/milli/src/update/new/mod.rs

@@ -17,6 +17,7 @@ pub mod indexer;
 mod merger;
 mod parallel_iterator_ext;
 mod ref_cell_ext;
+pub(crate) mod steps;
 pub(crate) mod thread_local;
 mod top_level_map;
 pub mod vector_document;

crates/milli/src/update/new/steps.rs

@@ -0,0 +1,45 @@
+use enum_iterator::Sequence;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Sequence)]
+#[repr(u16)]
+pub enum Step {
+    ExtractingDocuments,
+    ExtractingFacets,
+    ExtractingWords,
+    ExtractingWordProximity,
+    ExtractingEmbeddings,
+    WritingGeoPoints,
+    WritingToDatabase,
+    WritingEmbeddingsToDatabase,
+    WaitingForExtractors,
+    PostProcessingFacets,
+    PostProcessingWords,
+    Finalizing,
+}
+
+impl Step {
+    pub fn name(&self) -> &'static str {
+        match self {
+            Step::ExtractingDocuments => "extracting documents",
+            Step::ExtractingFacets => "extracting facets",
+            Step::ExtractingWords => "extracting words",
+            Step::ExtractingWordProximity => "extracting word proximity",
+            Step::ExtractingEmbeddings => "extracting embeddings",
+            Step::WritingGeoPoints => "writing geo points",
+            Step::WritingToDatabase => "writing to database",
+            Step::WritingEmbeddingsToDatabase => "writing embeddings to database",
+            Step::WaitingForExtractors => "waiting for extractors",
+            Step::PostProcessingFacets => "post-processing facets",
+            Step::PostProcessingWords => "post-processing words",
+            Step::Finalizing => "finalizing",
+        }
+    }
+
+    pub fn finished_steps(self) -> u16 {
+        self as u16
+    }
+
+    pub const fn total_steps() -> u16 {
+        Self::CARDINALITY as u16
+    }
+}