mirror of
https://github.com/meilisearch/meilisearch.git
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105 lines
3.6 KiB
Rust
105 lines
3.6 KiB
Rust
use std::fs::File;
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use std::io::{Cursor, Read, Seek, Write};
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use std::path::{Path, PathBuf};
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use std::{env, fs};
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use bytes::Bytes;
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use convert_case::{Case, Casing};
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use flate2::read::GzDecoder;
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use reqwest::IntoUrl;
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const BASE_URL: &str = "https://milli-benchmarks.fra1.digitaloceanspaces.com/datasets";
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const DATASET_SONGS: (&str, &str) = ("smol-songs", "csv");
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const DATASET_SONGS_1_2: (&str, &str) = ("smol-songs-1_2", "csv");
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const DATASET_SONGS_3_4: (&str, &str) = ("smol-songs-3_4", "csv");
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const DATASET_SONGS_4_4: (&str, &str) = ("smol-songs-4_4", "csv");
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const DATASET_WIKI: (&str, &str) = ("smol-wiki-articles", "csv");
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const DATASET_WIKI_1_2: (&str, &str) = ("smol-wiki-articles-1_2", "csv");
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const DATASET_WIKI_3_4: (&str, &str) = ("smol-wiki-articles-3_4", "csv");
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const DATASET_WIKI_4_4: (&str, &str) = ("smol-wiki-articles-4_4", "csv");
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const DATASET_MOVIES: (&str, &str) = ("movies", "json");
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const DATASET_MOVIES_1_2: (&str, &str) = ("movies-1_2", "json");
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const DATASET_MOVIES_3_4: (&str, &str) = ("movies-3_4", "json");
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const DATASET_MOVIES_4_4: (&str, &str) = ("movies-4_4", "json");
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const DATASET_GEO: (&str, &str) = ("smol-all-countries", "jsonl");
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const ALL_DATASETS: &[(&str, &str)] = &[
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DATASET_SONGS,
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DATASET_SONGS_1_2,
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DATASET_SONGS_3_4,
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DATASET_SONGS_4_4,
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DATASET_WIKI,
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DATASET_WIKI_1_2,
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DATASET_WIKI_3_4,
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DATASET_WIKI_4_4,
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DATASET_MOVIES,
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DATASET_MOVIES_1_2,
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DATASET_MOVIES_3_4,
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DATASET_MOVIES_4_4,
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DATASET_GEO,
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];
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/// The name of the environment variable used to select the path
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/// of the directory containing the datasets
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const BASE_DATASETS_PATH_KEY: &str = "MILLI_BENCH_DATASETS_PATH";
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fn main() -> anyhow::Result<()> {
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let out_dir = PathBuf::from(env::var(BASE_DATASETS_PATH_KEY).unwrap_or(env::var("OUT_DIR")?));
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let benches_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR")?).join("benches");
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let mut manifest_paths_file = File::create(benches_dir.join("datasets_paths.rs"))?;
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write!(
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manifest_paths_file,
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r#"//! This file is generated by the build script.
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//! Do not modify by hand, use the build.rs file.
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#![allow(dead_code)]
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"#
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)?;
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writeln!(manifest_paths_file)?;
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for (dataset, extension) in ALL_DATASETS {
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let out_path = out_dir.join(dataset);
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let out_file = out_path.with_extension(extension);
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writeln!(
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&mut manifest_paths_file,
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r#"pub const {}: &str = {:?};"#,
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dataset.to_case(Case::ScreamingSnake),
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out_file.display(),
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)?;
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if out_file.exists() {
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eprintln!(
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"The dataset {} already exists on the file system and will not be downloaded again",
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out_path.display(),
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);
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continue;
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}
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let url = format!("{}/{}.{}.gz", BASE_URL, dataset, extension);
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eprintln!("downloading: {}", url);
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let bytes = download_dataset(url.clone())?;
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eprintln!("{} downloaded successfully", url);
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eprintln!("uncompressing in {}", out_file.display());
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uncompress_in_file(bytes, &out_file)?;
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}
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Ok(())
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}
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fn download_dataset<U: IntoUrl>(url: U) -> anyhow::Result<Cursor<Bytes>> {
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let bytes =
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reqwest::blocking::Client::builder().timeout(None).build()?.get(url).send()?.bytes()?;
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Ok(Cursor::new(bytes))
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}
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fn uncompress_in_file<R: Read + Seek, P: AsRef<Path>>(bytes: R, path: P) -> anyhow::Result<()> {
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let path = path.as_ref();
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let mut gz = GzDecoder::new(bytes);
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let mut dataset = Vec::new();
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gz.read_to_end(&mut dataset)?;
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fs::write(path, dataset)?;
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Ok(())
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}
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