mirror of
https://github.com/meilisearch/meilisearch.git
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314 lines
9.5 KiB
Rust
314 lines
9.5 KiB
Rust
//! ```text
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//! .
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//! ├── indexes
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//! │ ├── index-40d14c5f-37ae-4873-9d51-b69e014a0d30
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//! │ │ ├── documents.jsonl
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//! │ │ └── meta.json
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//! │ ├── index-88202369-4524-4410-9b3d-3e924c867fec
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//! │ │ ├── documents.jsonl
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//! │ │ └── meta.json
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//! │ ├── index-b7f2d03b-bf9b-40d9-a25b-94dc5ec60c32
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//! │ │ ├── documents.jsonl
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//! │ │ └── meta.json
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//! │ └── index-dc9070b3-572d-4f30-ab45-d4903ab71708
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//! │ ├── documents.jsonl
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//! │ └── meta.json
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//! ├── index_uuids
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//! │ └── data.jsonl
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//! ├── metadata.json
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//! └── updates
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//! ├── data.jsonl
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//! └── update_files
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//! └── update_202573df-718b-4d80-9a65-2ee397c23dc3
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//! ```
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use std::{
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fs::{self, File},
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io::{BufRead, BufReader},
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path::Path,
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};
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use serde::{Deserialize, Serialize};
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use tempfile::TempDir;
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use time::OffsetDateTime;
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pub mod errors;
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pub mod meta;
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pub mod settings;
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pub mod updates;
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use crate::{IndexMetadata, Result, Version};
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use self::meta::{DumpMeta, IndexUuid};
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use super::IndexReader;
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pub type Document = serde_json::Map<String, serde_json::Value>;
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pub type Settings<T> = settings::Settings<T>;
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pub type Checked = settings::Checked;
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pub type Unchecked = settings::Unchecked;
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pub type Task = updates::UpdateEntry;
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pub type UpdateFile = File;
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// ===== Other types to clarify the code of the compat module
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// everything related to the tasks
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pub type Status = updates::UpdateStatus;
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// pub type Kind = updates::Update;
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pub type Details = updates::UpdateResult;
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// everything related to the errors
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pub type ResponseError = errors::ResponseError;
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// pub type Code = errors::Code;
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#[derive(Serialize, Deserialize, Debug)]
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#[serde(rename_all = "camelCase")]
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pub struct Metadata {
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db_version: String,
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index_db_size: usize,
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update_db_size: usize,
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#[serde(with = "time::serde::rfc3339")]
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dump_date: OffsetDateTime,
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}
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pub struct V2Reader {
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dump: TempDir,
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metadata: Metadata,
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tasks: BufReader<File>,
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pub index_uuid: Vec<IndexUuid>,
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}
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impl V2Reader {
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pub fn open(dump: TempDir) -> Result<Self> {
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let meta_file = fs::read(dump.path().join("metadata.json"))?;
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let metadata = serde_json::from_reader(&*meta_file)?;
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let index_uuid = File::open(dump.path().join("index_uuids/data.jsonl"))?;
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let index_uuid = BufReader::new(index_uuid);
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let index_uuid = index_uuid
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.lines()
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.map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) })
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.collect::<Result<Vec<_>>>()?;
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Ok(V2Reader {
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metadata,
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tasks: BufReader::new(
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File::open(dump.path().join("updates").join("data.jsonl")).unwrap(),
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),
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index_uuid,
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dump,
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})
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}
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/*
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pub fn to_v3(self) -> CompatV2ToV3 {
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CompatV2ToV3::new(self)
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}
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*/
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pub fn version(&self) -> Version {
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Version::V2
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}
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pub fn date(&self) -> Option<OffsetDateTime> {
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Some(self.metadata.dump_date)
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}
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pub fn indexes(&self) -> Result<impl Iterator<Item = Result<V2IndexReader>> + '_> {
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Ok(self.index_uuid.iter().map(|index| -> Result<_> {
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Ok(V2IndexReader::new(
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index.uid.clone(),
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&self
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.dump
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.path()
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.join("indexes")
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.join(format!("index-{}", index.uuid.to_string())),
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)?)
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}))
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}
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pub fn tasks(&mut self) -> Box<dyn Iterator<Item = Result<(Task, Option<UpdateFile>)>> + '_> {
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Box::new((&mut self.tasks).lines().map(|line| -> Result<_> {
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let task: Task = serde_json::from_str(&line?)?;
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if !task.is_finished() {
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if let Some(uuid) = task.get_content_uuid() {
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let update_file_path = self
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.dump
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.path()
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.join("updates")
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.join("update_files")
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.join(format!("update_{}", uuid.to_string()));
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Ok((task, Some(File::open(update_file_path).unwrap())))
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} else {
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Ok((task, None))
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}
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} else {
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Ok((task, None))
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}
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}))
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}
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}
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pub struct V2IndexReader {
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metadata: IndexMetadata,
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settings: Settings<Checked>,
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documents: BufReader<File>,
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}
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impl V2IndexReader {
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pub fn new(name: String, path: &Path) -> Result<Self> {
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let meta = File::open(path.join("meta.json"))?;
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let meta: DumpMeta = serde_json::from_reader(meta)?;
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let metadata = IndexMetadata {
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uid: name,
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primary_key: meta.primary_key,
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// FIXME: Iterate over the whole task queue to find the creation and last update date.
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created_at: OffsetDateTime::now_utc(),
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updated_at: OffsetDateTime::now_utc(),
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};
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let ret = V2IndexReader {
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metadata,
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settings: meta.settings.check(),
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documents: BufReader::new(File::open(path.join("documents.jsonl"))?),
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};
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Ok(ret)
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}
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pub fn metadata(&self) -> &IndexMetadata {
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&self.metadata
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}
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pub fn documents(&mut self) -> Result<impl Iterator<Item = Result<Document>> + '_> {
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Ok((&mut self.documents)
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.lines()
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.map(|line| -> Result<_> { Ok(serde_json::from_str(&line?)?) }))
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}
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pub fn settings(&mut self) -> Result<Settings<Checked>> {
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Ok(self.settings.clone())
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}
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}
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#[cfg(test)]
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pub(crate) mod test {
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use std::{fs::File, io::BufReader};
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use flate2::bufread::GzDecoder;
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use tempfile::TempDir;
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use super::*;
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#[test]
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fn read_dump_v2() {
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let dump = File::open("tests/assets/v2.dump").unwrap();
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let dir = TempDir::new().unwrap();
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let mut dump = BufReader::new(dump);
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let gz = GzDecoder::new(&mut dump);
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let mut archive = tar::Archive::new(gz);
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archive.unpack(dir.path()).unwrap();
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let mut dump = V2Reader::open(dir).unwrap();
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// top level infos
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insta::assert_display_snapshot!(dump.date().unwrap(), @"2022-10-09 20:27:59.904096267 +00:00:00");
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// tasks
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let tasks = dump.tasks().collect::<Result<Vec<_>>>().unwrap();
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let (tasks, update_files): (Vec<_>, Vec<_>) = tasks.into_iter().unzip();
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insta::assert_json_snapshot!(tasks);
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assert_eq!(update_files.len(), 9);
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assert!(update_files[0].is_some()); // the enqueued document addition
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assert!(update_files[1..].iter().all(|u| u.is_none())); // everything already processed
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// indexes
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let mut indexes = dump.indexes().unwrap().collect::<Result<Vec<_>>>().unwrap();
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// the index are not ordered in any way by default
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indexes.sort_by_key(|index| index.metadata().uid.to_string());
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let mut products = indexes.pop().unwrap();
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let mut movies2 = indexes.pop().unwrap();
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let mut movies = indexes.pop().unwrap();
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let mut spells = indexes.pop().unwrap();
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assert!(indexes.is_empty());
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// products
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insta::assert_json_snapshot!(products.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
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{
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"uid": "products",
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"primaryKey": "sku",
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"createdAt": "[now]",
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"updatedAt": "[now]"
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}
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"###);
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insta::assert_debug_snapshot!(products.settings());
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let documents = products
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.documents()
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.unwrap()
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.collect::<Result<Vec<_>>>()
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.unwrap();
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assert_eq!(documents.len(), 10);
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insta::assert_json_snapshot!(documents);
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// movies
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insta::assert_json_snapshot!(movies.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
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{
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"uid": "movies",
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"primaryKey": "id",
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"createdAt": "[now]",
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"updatedAt": "[now]"
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}
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"###);
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insta::assert_debug_snapshot!(movies.settings());
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let documents = movies
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.documents()
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.unwrap()
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.collect::<Result<Vec<_>>>()
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.unwrap();
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assert_eq!(documents.len(), 110);
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insta::assert_debug_snapshot!(documents);
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// movies2
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insta::assert_json_snapshot!(movies2.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
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{
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"uid": "movies_2",
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"primaryKey": null,
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"createdAt": "[now]",
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"updatedAt": "[now]"
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}
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"###);
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insta::assert_debug_snapshot!(movies2.settings());
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let documents = movies2
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.documents()
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.unwrap()
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.collect::<Result<Vec<_>>>()
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.unwrap();
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assert_eq!(documents.len(), 0);
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insta::assert_debug_snapshot!(documents);
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// spells
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insta::assert_json_snapshot!(spells.metadata(), { ".createdAt" => "[now]", ".updatedAt" => "[now]" }, @r###"
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{
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"uid": "dnd_spells",
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"primaryKey": "index",
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"createdAt": "[now]",
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"updatedAt": "[now]"
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}
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"###);
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insta::assert_debug_snapshot!(spells.settings());
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let documents = spells
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.documents()
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.unwrap()
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.collect::<Result<Vec<_>>>()
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.unwrap();
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assert_eq!(documents.len(), 10);
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insta::assert_json_snapshot!(documents);
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}
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}
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