-
Notifications
You must be signed in to change notification settings - Fork 8.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'master' of github.com:elastic/kibana into chore/yarn-lo…
…ck-deduplicate # Conflicts: # yarn.lock
- Loading branch information
Showing
100 changed files
with
2,874 additions
and
407 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * Licensed to Elasticsearch B.V. under one or more contributor | ||
| * license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright | ||
| * ownership. Elasticsearch B.V. licenses this file to you under | ||
| * the Apache License, Version 2.0 (the "License"); you may | ||
| * not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
|
|
||
| import Path from 'path'; | ||
|
|
||
| // @ts-expect-error no types available | ||
| import * as LmdbStore from 'lmdb-store'; | ||
| import { REPO_ROOT, UPSTREAM_BRANCH } from '@kbn/dev-utils'; | ||
|
|
||
| const CACHE_DIR = Path.resolve(REPO_ROOT, 'data/node_auto_transpilation_cache', UPSTREAM_BRANCH); | ||
| const reportError = () => { | ||
| // right now I'm not sure we need to worry about errors, the cache isn't actually | ||
| // necessary, and if the cache is broken it should just rebuild on the next restart | ||
| // of the process. We don't know how often errors occur though and what types of | ||
| // things might fail on different machines so we probably want some way to signal | ||
| // to users that something is wrong | ||
| }; | ||
|
|
||
| const GLOBAL_ATIME = `${Date.now()}`; | ||
| const MINUTE = 1000 * 60; | ||
| const HOUR = MINUTE * 60; | ||
| const DAY = HOUR * 24; | ||
|
|
||
| interface Lmdb<T> { | ||
| get(key: string): T | undefined; | ||
| put(key: string, value: T, version?: number, ifVersion?: number): Promise<boolean>; | ||
| remove(key: string, ifVersion?: number): Promise<boolean>; | ||
| openDB<T>(options: { name: string; encoding: 'msgpack' | 'string' | 'json' | 'binary' }): Lmdb<T>; | ||
| getRange(options?: { | ||
| start?: T; | ||
| end?: T; | ||
| reverse?: boolean; | ||
| limit?: number; | ||
| versions?: boolean; | ||
| }): Iterable<{ key: string; value: T }>; | ||
| } | ||
|
|
||
| export class Cache { | ||
| private readonly codes: Lmdb<string>; | ||
| private readonly atimes: Lmdb<string>; | ||
| private readonly mtimes: Lmdb<string>; | ||
| private readonly sourceMaps: Lmdb<any>; | ||
| private readonly prefix: string; | ||
|
|
||
| constructor(config: { prefix: string }) { | ||
| this.prefix = config.prefix; | ||
|
|
||
| this.codes = LmdbStore.open({ | ||
| name: 'codes', | ||
| path: CACHE_DIR, | ||
| }); | ||
|
|
||
| this.atimes = this.codes.openDB({ | ||
| name: 'atimes', | ||
| encoding: 'string', | ||
| }); | ||
|
|
||
| this.mtimes = this.codes.openDB({ | ||
| name: 'mtimes', | ||
| encoding: 'string', | ||
| }); | ||
|
|
||
| this.sourceMaps = this.codes.openDB({ | ||
| name: 'sourceMaps', | ||
| encoding: 'msgpack', | ||
| }); | ||
|
|
||
| // after the process has been running for 30 minutes prune the | ||
| // keys which haven't been used in 30 days. We use `unref()` to | ||
| // make sure this timer doesn't hold other processes open | ||
| // unexpectedly | ||
| setTimeout(() => { | ||
| this.pruneOldKeys(); | ||
| }, 30 * MINUTE).unref(); | ||
| } | ||
|
|
||
| getMtime(path: string) { | ||
| return this.mtimes.get(this.getKey(path)); | ||
| } | ||
|
|
||
| getCode(path: string) { | ||
| const key = this.getKey(path); | ||
|
|
||
| // when we use a file from the cache set the "atime" of that cache entry | ||
| // so that we know which cache items we use and which haven't been | ||
| // touched in a long time (currently 30 days) | ||
| this.atimes.put(key, GLOBAL_ATIME).catch(reportError); | ||
|
|
||
| return this.codes.get(key); | ||
| } | ||
|
|
||
| getSourceMap(path: string) { | ||
| return this.sourceMaps.get(this.getKey(path)); | ||
| } | ||
|
|
||
| update(path: string, file: { mtime: string; code: string; map: any }) { | ||
| const key = this.getKey(path); | ||
|
|
||
| Promise.all([ | ||
| this.atimes.put(key, GLOBAL_ATIME), | ||
| this.mtimes.put(key, file.mtime), | ||
| this.codes.put(key, file.code), | ||
| this.sourceMaps.put(key, file.map), | ||
| ]).catch(reportError); | ||
| } | ||
|
|
||
| private getKey(path: string) { | ||
| return `${this.prefix}${path}`; | ||
| } | ||
|
|
||
| private async pruneOldKeys() { | ||
| try { | ||
| const ATIME_LIMIT = Date.now() - 30 * DAY; | ||
| const BATCH_SIZE = 1000; | ||
|
|
||
| const validKeys: string[] = []; | ||
| const invalidKeys: string[] = []; | ||
|
|
||
| for (const { key, value } of this.atimes.getRange()) { | ||
| const atime = parseInt(value, 10); | ||
| if (atime < ATIME_LIMIT) { | ||
| invalidKeys.push(key); | ||
| } else { | ||
| validKeys.push(key); | ||
| } | ||
|
|
||
| if (validKeys.length + invalidKeys.length >= BATCH_SIZE) { | ||
| const promises = new Set(); | ||
|
|
||
| if (invalidKeys.length) { | ||
| for (const k of invalidKeys) { | ||
| // all these promises are the same currently, so Set() will | ||
| // optimise this to a single promise, but I wouldn't be shocked | ||
| // if a future version starts returning independent promises so | ||
| // this is just for some future-proofing | ||
| promises.add(this.atimes.remove(k)); | ||
| promises.add(this.mtimes.remove(k)); | ||
| promises.add(this.codes.remove(k)); | ||
| promises.add(this.sourceMaps.remove(k)); | ||
| } | ||
| } else { | ||
| // delay a smidge to allow other things to happen before the next batch of checks | ||
| promises.add(new Promise((resolve) => setTimeout(resolve, 1))); | ||
| } | ||
|
|
||
| invalidKeys.length = 0; | ||
| validKeys.length = 0; | ||
| await Promise.all(Array.from(promises)); | ||
| } | ||
| } | ||
| } catch { | ||
| // ignore errors, the cache is totally disposable and will rebuild if there is some sort of corruption | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.