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![]() This commit disables compression of the TSC snapshot. The compression only decreased the size of snapshot by 0.5Mb and it took about 40s during release build to compress. With recent gains in TS 5.0 upgrade in terms of size and performance it makes sense to remove this compression. |
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dts | ||
00_typescript.js | ||
99_main_compiler.js | ||
compiler.d.ts | ||
diagnostics.rs | ||
mod.rs | ||
README.md |
tsc
This directory contains the typescript compiler and a small compiler host for the runtime snapshot.
How to upgrade TypeScript.
The files in this directory are mostly from the TypeScript repository. We currently (unfortunately) have a rather manual process for upgrading TypeScript. It works like this currently:
- Checkout denoland/TypeScript repo in a separate directory.
- Add Microsoft/TypeScript as a remote and fetch its latest tags
- Checkout a new branch based on this tag.
- Cherry pick the custom commit we made in a previous release to the new one.
- This commit has a "deno.ts" file in it. Read the instructions in it.
- Copy typescript.js into Deno repo.
- Copy d.ts files into dts directory.
- Review the copied files, removing and reverting what's necessary
So that might look something like this:
git clone https://github.com/denoland/TypeScript.git
cd typescript
git remote add upstream https://github.com/Microsoft/TypeScript
git fetch upstream
git checkout v3.9.7
git checkout -b branch_v3.9.7
git cherry pick <previous-release-branch-commit-we-did>
npm install
gulp local
rsync built/local/typescript.js ~/src/deno/cli/tsc/00_typescript.js
rsync --exclude=protocol.d.ts --exclude=tsserverlibrary.d.ts --exclude=typescriptServices.d.ts built/local/*.d.ts ~/src/deno/cli/tsc/dts/