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https://github.com/meilisearch/meilisearch.git
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Fix the infos binary and add commands
This commit is contained in:
Clément Renault
parent
daa3673c1c
commit
dec460ce52
206
src/bin/infos.rs
206
src/bin/infos.rs
@ -39,45 +39,27 @@ enum Command {
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///
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/// `word` are displayed and ordered by frequency.
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/// `document_frequency` defines the number of documents which contains the word.
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/// `frequency` defines the number times the word appears in all the documents.
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MostCommonWords {
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/// The maximum number of frequencies to return.
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#[structopt(default_value = "10")]
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limit: usize,
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},
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/// Outputs a CSV with the frequencies of the specified words.
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///
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/// Read the documentation of the `most-common-words` command
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/// for more information about the CSV headers.
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WordsFrequencies {
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/// The words you want to retrieve frequencies of.
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words: Vec<String>,
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},
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/// Outputs a CSV with the biggest entries of the database.
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BiggestValueSizes {
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BiggestValues {
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/// The maximum number of sizes to return.
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#[structopt(default_value = "10")]
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limit: usize,
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},
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/// Outputs a CSV with the document ids for all the positions of the given words.
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WordPositionDocIds {
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/// Show the value entirely, not just the debug version.
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#[structopt(long)]
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full_display: bool,
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/// The words you want to display the values of.
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words: Vec<String>,
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},
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/// Outputs a CSV with all the positions of the given words.
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WordPositions {
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/// Show the value entirely, not just the debug version.
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#[structopt(long)]
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full_display: bool,
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/// The words you want to display the values of.
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words: Vec<String>,
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/// Outputs the words FST to disk.
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///
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/// One can use the FST binary helper to dissect and analyze it,
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/// you can install it using `cargo install fst-bin`.
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ExportWordsFst {
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/// The path where the FST will be written.
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#[structopt(short, long, default_value = "words.fst")]
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output: PathBuf,
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},
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}
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@ -101,80 +83,29 @@ fn main() -> anyhow::Result<()> {
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match opt.command {
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MostCommonWords { limit } => most_common_words(&index, &rtxn, limit),
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WordsFrequencies { words } => words_frequencies(&index, &rtxn, words),
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BiggestValueSizes { limit } => biggest_value_sizes(&index, &rtxn, limit),
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WordPositionDocIds { full_display, words } => word_position_doc_ids(&index, &rtxn, !full_display, words),
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WordPositions { full_display, words } => word_positions(&index, &rtxn, !full_display, words),
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BiggestValues { limit } => biggest_value_sizes(&index, &rtxn, limit),
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ExportWordsFst { output } => export_words_fst(&index, &rtxn, output),
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}
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}
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fn most_common_words(index: &Index, rtxn: &heed::RoTxn, limit: usize) -> anyhow::Result<()> {
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use std::collections::BinaryHeap;
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use std::cmp::Reverse;
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use roaring::RoaringBitmap;
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let mut heap = BinaryHeap::with_capacity(limit + 1);
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let mut prev = None as Option<(String, u64, RoaringBitmap)>;
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for result in index.word_position_docids.iter(rtxn)? {
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for result in index.word_docids.iter(rtxn)? {
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if limit == 0 { break }
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let ((word, _position), postings) = result?;
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match prev.as_mut() {
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Some((prev_word, freq, docids)) if prev_word == word => {
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*freq += postings.len();
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docids.union_with(&postings);
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},
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Some((prev_word, freq, docids)) => {
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heap.push(Reverse((docids.len(), *freq, prev_word.to_string())));
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if heap.len() > limit { heap.pop(); }
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prev = Some((word.to_string(), postings.len(), postings))
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},
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None => prev = Some((word.to_string(), postings.len(), postings)),
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}
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}
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if let Some((prev_word, freq, docids)) = prev {
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heap.push(Reverse((docids.len(), freq, prev_word.to_string())));
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let (word, docids) = result?;
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heap.push((Reverse(docids.len()), word));
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if heap.len() > limit { heap.pop(); }
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}
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let stdout = io::stdout();
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let mut wtr = csv::Writer::from_writer(stdout.lock());
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wtr.write_record(&["word", "document_frequency", "frequency"])?;
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wtr.write_record(&["word", "document_frequency"])?;
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for Reverse((document_frequency, frequency, word)) in heap.into_sorted_vec() {
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wtr.write_record(&[word, document_frequency.to_string(), frequency.to_string()])?;
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}
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Ok(wtr.flush()?)
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}
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fn words_frequencies(index: &Index, rtxn: &heed::RoTxn, words: Vec<String>) -> anyhow::Result<()> {
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use heed::BytesDecode;
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use heed::types::ByteSlice;
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use milli::heed_codec::{RoaringBitmapCodec, StrBEU32Codec};
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use roaring::RoaringBitmap;
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let stdout = io::stdout();
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let mut wtr = csv::Writer::from_writer(stdout.lock());
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wtr.write_record(&["word", "document_frequency", "frequency"])?;
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for word in words {
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let mut document_frequency = RoaringBitmap::new();
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let mut frequency = 0;
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let db = index.word_position_docids.as_polymorph();
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for result in db.prefix_iter::<_, ByteSlice, RoaringBitmapCodec>(rtxn, word.as_bytes())? {
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let (bytes, postings) = result?;
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let (w, _position) = StrBEU32Codec::bytes_decode(bytes).unwrap();
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// if the word is not exactly the word we requested then it means
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// we found a word that *starts with* the requested word and we must stop.
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if word != w { break }
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document_frequency.union_with(&postings);
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frequency += postings.len();
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}
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wtr.write_record(&[word, document_frequency.len().to_string(), frequency.to_string()])?;
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for (Reverse(document_frequency), word) in heap.into_sorted_vec() {
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wtr.write_record(&[word, &document_frequency.to_string()])?;
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}
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Ok(wtr.flush()?)
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@ -183,15 +114,12 @@ fn words_frequencies(index: &Index, rtxn: &heed::RoTxn, words: Vec<String>) -> a
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fn biggest_value_sizes(index: &Index, rtxn: &heed::RoTxn, limit: usize) -> anyhow::Result<()> {
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use std::cmp::Reverse;
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use std::collections::BinaryHeap;
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use heed::BytesDecode;
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use heed::types::{Str, ByteSlice};
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use milli::heed_codec::StrBEU32Codec;
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use milli::heed_codec::BEU32StrCodec;
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let main_name = "main";
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let word_positions_name = "word_positions";
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let word_position_docids_name = "word_position_docids";
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let word_four_positions_docids_name = "word_four_positions_docids";
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let word_attribute_docids_name = "word_attribute_docids";
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let word_docids_name = "word_docids";
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let docid_word_positions_name = "docid_word_positions";
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let mut heap = BinaryHeap::with_capacity(limit + 1);
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@ -211,33 +139,16 @@ fn biggest_value_sizes(index: &Index, rtxn: &heed::RoTxn, limit: usize) -> anyho
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if heap.len() > limit { heap.pop(); }
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}
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for result in index.word_positions.as_polymorph().iter::<_, Str, ByteSlice>(rtxn)? {
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for result in index.word_docids.as_polymorph().iter::<_, Str, ByteSlice>(rtxn)? {
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let (word, value) = result?;
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heap.push(Reverse((value.len(), word.to_string(), word_positions_name)));
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heap.push(Reverse((value.len(), word.to_string(), word_docids_name)));
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if heap.len() > limit { heap.pop(); }
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}
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for result in index.word_position_docids.as_polymorph().iter::<_, ByteSlice, ByteSlice>(rtxn)? {
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let (key_bytes, value) = result?;
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let (word, position) = StrBEU32Codec::bytes_decode(key_bytes).unwrap();
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let key = format!("{} {}", word, position);
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heap.push(Reverse((value.len(), key, word_position_docids_name)));
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if heap.len() > limit { heap.pop(); }
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}
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for result in index.word_four_positions_docids.as_polymorph().iter::<_, ByteSlice, ByteSlice>(rtxn)? {
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let (key_bytes, value) = result?;
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let (word, lower_position) = StrBEU32Codec::bytes_decode(key_bytes).unwrap();
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let key = format!("{} {}..{}", word, lower_position, lower_position + 4);
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heap.push(Reverse((value.len(), key, word_four_positions_docids_name)));
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if heap.len() > limit { heap.pop(); }
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}
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for result in index.word_attribute_docids.as_polymorph().iter::<_, ByteSlice, ByteSlice>(rtxn)? {
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let (key_bytes, value) = result?;
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let (word, attribute) = StrBEU32Codec::bytes_decode(key_bytes).unwrap();
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let key = format!("{} {}", word, attribute);
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heap.push(Reverse((value.len(), key, word_attribute_docids_name)));
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for result in index.docid_word_positions.as_polymorph().iter::<_, BEU32StrCodec, ByteSlice>(rtxn)? {
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let ((docid, word), value) = result?;
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let key = format!("{} {}", docid, word);
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heap.push(Reverse((value.len(), key, docid_word_positions_name)));
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if heap.len() > limit { heap.pop(); }
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}
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}
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@ -253,61 +164,20 @@ fn biggest_value_sizes(index: &Index, rtxn: &heed::RoTxn, limit: usize) -> anyho
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Ok(wtr.flush()?)
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}
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fn word_position_doc_ids(index: &Index, rtxn: &heed::RoTxn, debug: bool, words: Vec<String>) -> anyhow::Result<()> {
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use heed::BytesDecode;
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use heed::types::ByteSlice;
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use milli::heed_codec::{RoaringBitmapCodec, StrBEU32Codec};
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fn export_words_fst(index: &Index, rtxn: &heed::RoTxn, output: PathBuf) -> anyhow::Result<()> {
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use std::fs::File;
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use std::io::Write as _;
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let stdout = io::stdout();
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let mut wtr = csv::Writer::from_writer(stdout.lock());
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wtr.write_record(&["word", "position", "document_ids"])?;
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let mut output = File::create(&output)
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.with_context(|| format!("failed to create {} file", output.display()))?;
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let mut non_debug = Vec::new();
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for word in words {
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let db = index.word_position_docids.as_polymorph();
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for result in db.prefix_iter::<_, ByteSlice, RoaringBitmapCodec>(rtxn, word.as_bytes())? {
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let (bytes, postings) = result?;
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let (w, position) = StrBEU32Codec::bytes_decode(bytes).unwrap();
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// if the word is not exactly the word we requested then it means
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// we found a word that *starts with* the requested word and we must stop.
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if word != w { break }
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let postings_string = if debug {
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format!("{:?}", postings)
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} else {
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non_debug.clear();
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non_debug.extend(postings);
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format!("{:?}", non_debug)
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};
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wtr.write_record(&[&word, &position.to_string(), &postings_string])?;
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}
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match index.fst(rtxn)? {
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Some(fst) => output.write_all(fst.as_fst().as_bytes())?,
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None => {
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let fst = fst::Set::default();
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output.write_all(fst.as_fst().as_bytes())?;
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},
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}
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Ok(wtr.flush()?)
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}
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fn word_positions(index: &Index, rtxn: &heed::RoTxn, debug: bool, words: Vec<String>) -> anyhow::Result<()> {
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let stdout = io::stdout();
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let mut wtr = csv::Writer::from_writer(stdout.lock());
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wtr.write_record(&["word", "positions"])?;
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let mut non_debug = Vec::new();
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for word in words {
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let postings = index.word_positions.get(rtxn, &word)?
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.with_context(|| format!("could not find word {:?}", &word))?;
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let postings_string = if debug {
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format!("{:?}", postings)
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} else {
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non_debug.clear();
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non_debug.extend(postings);
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format!("{:?}", non_debug)
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};
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wtr.write_record(&[word, postings_string])?;
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}
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Ok(wtr.flush()?)
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Ok(())
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}
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