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Use v8-compile-cache to shave ~1/10 second off typescript load time #1339

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cspotcode opened this issue May 23, 2021 · 0 comments · Fixed by #1603
Closed

Use v8-compile-cache to shave ~1/10 second off typescript load time #1339

cspotcode opened this issue May 23, 2021 · 0 comments · Fixed by #1603
Milestone
10.5.0

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@cspotcode
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I've forked it: https://www.npmjs.com/package/v8-compile-cache-lib

We can use this solely for loading typescript, since we know it's big and will benefit.

We can't do something as simple as require('v8-compile-cache') because it's technically incompatible with certain types of code. We need to scope the usage to only our TS compiler loading.

Informal testing on my machine cuts ~80 to 100ms.

const v8CC = require('v8-compile-cache-lib').install();
const ts = require('typescript');
v8CC.uninstall();
@cspotcode cspotcode added this to the next milestone May 23, 2021
@cspotcode cspotcode modified the milestones: 10.2.0, next Aug 8, 2021
@cspotcode cspotcode mentioned this issue Jan 21, 2022
Merged
cspotcode added a commit that referenced this issue Jan 21, 2022
@cspotcode
Implement #1339: use v8-compile-cache to load typescript (#1603)
8949654 
* initial commit

* lint-fix
crapStone pushed a commit to Calciumdibromid/CaBr2 that referenced this issue Feb 16, 2022
Update dependency ts-node to v10.5.0 (#1156)
065d90f 
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ts-node](https://typestrong.org/ts-node) ([source](https://github.com/TypeStrong/ts-node)) | devDependencies | minor | [`10.4.0` -> `10.5.0`](https://renovatebot.com/diffs/npm/ts-node/10.4.0/10.5.0) |

---

### Release Notes

<details>
<summary>TypeStrong/ts-node</summary>

### [`v10.5.0`](https://github.com/TypeStrong/ts-node/releases/v10.5.0)

[Compare Source](TypeStrong/ts-node@v10.4.0...v10.5.0)

<!--
  I don't make a discussion thread for every release.  Github has a button to make a discussion thread for a release.
  Then I update the discussion thread to remove the release notes and instead link to the release.
-->

Questions about this release? Ask in the official discussion thread: [#&#8203;1634](TypeStrong/ts-node#1634)

**Added**

-   Eliminate "Emit Skipped" errors ([#&#8203;693](TypeStrong/ts-node#693), [#&#8203;1345](TypeStrong/ts-node#1345), [#&#8203;1629](TypeStrong/ts-node#1629))
    -   Avoids all "Emit Skipped" errors by performing a fallback `transpileOnly`-style transformation.
    -   Does not affect typechecking.  Type errors are still detected and thrown.
    -   Fallback has the same limitations as `isolatedModules`. This will only affect rare cases such as using `const enums` with `preserveConstEnums` disabled.
    -   Fixes [#&#8203;693](TypeStrong/ts-node#693)
-   Graduate swc transpiler out of experimental; add `swc: true` convenience option ([docs](https://typestrong.org/ts-node/docs/transpilers)) ([#&#8203;1487](TypeStrong/ts-node#1487), [#&#8203;1536](TypeStrong/ts-node#1536), [#&#8203;1613](TypeStrong/ts-node#1613), [#&#8203;1627](TypeStrong/ts-node#1627))
    -   `"swc": true` or `--swc` will use swc for faster execution
    -   This feature is no longer marked "experimental."  Thank you to everyone who filed bugs!
-   swc transpiler attempts to load `@swc/core` or `@swc/wasm` dependencies from your project before falling-back to global installations ([#&#8203;1613](TypeStrong/ts-node#1613), [#&#8203;1627](TypeStrong/ts-node#1627))
    -   global fallback only occurs when using a global installation of ts-node
-   Add support for TypeScript's `traceResolution` output ([docs](https://www.typescriptlang.org/tsconfig/#traceResolution)) ([#&#8203;1128](TypeStrong/ts-node#1128), [#&#8203;1491](TypeStrong/ts-node#1491)) [@&#8203;TheUnlocked](https://github.com/TheUnlocked)
-   Support import assertions in ESM loader ([docs](https://nodejs.org/dist/latest-v17.x/docs/api/esm.html#import-assertions)) ([#&#8203;1557](TypeStrong/ts-node#1557), [#&#8203;1558](TypeStrong/ts-node#1558), [#&#8203;1559](TypeStrong/ts-node#1559), [#&#8203;1573](TypeStrong/ts-node#1573)) [@&#8203;Pokute](https://github.com/Pokute), [@&#8203;geigerzaehler](https://github.com/geigerzaehler)
    -   Allows importing JSON files from ESM with the requisite flag ([docs](https://nodejs.org/dist/latest-v17.x/docs/api/esm.html#json-modules))
-   `ts-node -vvv` also logs absolute paths to `ts-node` and `typescript`, to make it more obvious when you're accidentally using globally-installed versions ([#&#8203;1323](TypeStrong/ts-node#1323), [#&#8203;1620](TypeStrong/ts-node#1620))
-   Add swc target "es2022" ([#&#8203;1535](TypeStrong/ts-node#1535), [#&#8203;1540](TypeStrong/ts-node#1540))
    -   When you have target es2022 in tsconfig, will use swc's es2022 target

**Changed**

-   Initialize TypeScript compiler before starting REPL prompt ([#&#8203;1498](TypeStrong/ts-node#1498)) [@&#8203;TheUnlocked](https://github.com/TheUnlocked)
    -   Improves responsiveness for first line of REPL input
-   Use `v8-compile-cache-lib` to load typescript
    -   improves startup time ([#&#8203;1339](TypeStrong/ts-node#1339), [#&#8203;1603](TypeStrong/ts-node#1603))
-   Support both `--camelCase` and `--hyphen-case` for all CLI flags; update documentation to use `--camelCase` ([#&#8203;1598](TypeStrong/ts-node#1598), [#&#8203;1599](TypeStrong/ts-node#1599))
    -   Not a breaking change; CLI continues to accept both forms
-   Make `TSError` `diagnosticText` property non-enumerable to prevent it from being logged below the stack ([#&#8203;1632](TypeStrong/ts-node#1632))

**Fixed**

-   Fix [#&#8203;1538](TypeStrong/ts-node#1538): REPL inputs fail to transpile via swc ([#&#8203;1538](TypeStrong/ts-node#1538), [#&#8203;1541](TypeStrong/ts-node#1541), [#&#8203;1602](TypeStrong/ts-node#1602))
-   Fix [#&#8203;1478](TypeStrong/ts-node#1478): REPL erroneously logged `undefined` for all inputs after the first when using swc transpiler ([#&#8203;1478](TypeStrong/ts-node#1478), [#&#8203;1580](TypeStrong/ts-node#1580), [#&#8203;1602](TypeStrong/ts-node#1602))
-   Fix [#&#8203;1389](TypeStrong/ts-node#1389): In `--showConfig` output, emit accurate `moduleTypes` paths resolved relative to the `tsconfig.json` which declared them ([#&#8203;1389](TypeStrong/ts-node#1389), [#&#8203;1619](TypeStrong/ts-node#1619))
-   Fix: Remove indentation from `ts-node --help` output ([#&#8203;1597](TypeStrong/ts-node#1597), [#&#8203;1600](TypeStrong/ts-node#1600))
-   Fix [#&#8203;1425](TypeStrong/ts-node#1425): Merged definitions correctly into `tsconfig.schemastore-schema.json` ([#&#8203;1425](TypeStrong/ts-node#1425), [#&#8203;1618](TypeStrong/ts-node#1618))
-   Fix: Allow disabling `"use strict"` emit in SWC transpiler ([#&#8203;1531](TypeStrong/ts-node#1531), [#&#8203;1537](TypeStrong/ts-node#1537))
-   Fix: Add missing `ERR_UNKNOWN_FILE_EXTENSION` constructor; was throwing `ERR_UNKNOWN_FILE_EXTENSION is not a constructor` ([#&#8203;1562](TypeStrong/ts-node#1562)) [@&#8203;bluelovers](https://github.com/bluelovers)
-   Fix [#&#8203;1565](TypeStrong/ts-node#1565): entrypoint resolution failed on node v12.0.x and v12.1.x ([#&#8203;1565](TypeStrong/ts-node#1565), [#&#8203;1566](TypeStrong/ts-node#1566)) [@&#8203;davidmurdoch](https://github.com/davidmurdoch)

#### Docs

-   Explain `env -S` flag for shebangs ([docs](https://typestrong.org/ts-node/docs/usage#shebang)) ([#&#8203;1448](TypeStrong/ts-node#1448), [#&#8203;1545](TypeStrong/ts-node#1545)) [@&#8203;sheeit](https://github.com/sheeit), [@&#8203;chee](https://github.com/chee)
-   Suggest `skipIgnore` when you want to compile files in node_modules ([docs](https://typestrong.org/ts-node/docs/how-it-works)) ([#&#8203;1553](TypeStrong/ts-node#1553)) [@&#8203;webstrand](https://github.com/webstrand)
-   Fix typo in `moduleTypes` on options page ([docs](https://typestrong.org/ts-node/docs/options)) ([#&#8203;1630](TypeStrong/ts-node#1630), [#&#8203;1633](TypeStrong/ts-node#1633))

#### Misc

-   Adds experimental `experimentalResolverFeatures` option, but it does not do anything yet ([#&#8203;1514](TypeStrong/ts-node#1514), [#&#8203;1614](TypeStrong/ts-node#1614))

https://github.com/TypeStrong/ts-node/milestone/4

</details>

---

### Configuration

📅 **Schedule**: At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1156
Reviewed-by: crapStone <crapstone@noreply.codeberg.org>
Co-authored-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
Co-committed-by: Calciumdibromid Bot <cabr2_bot@noreply.codeberg.org>
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Implement #1339: use v8-compile-cache to load typescript TypeStrong/ts-node
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