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chore: add DOM.AsyncIterable lib and use standard filesystem types

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Add `DOM.AsyncIterable` to the shared TypeScript configuration in
`@backstage/cli`, making standard async iteration methods available on
DOM APIs like `FileSystemDirectoryHandle`. This aligns behavior with
TypeScript 6.0, where this lib is included in `DOM` by default.

With the async iterable types now available, replace the custom
`IterableDirectoryHandle` and `WritableFileHandle` types in the scaffolder
plugin with the standard `FileSystemDirectoryHandle` and
`FileSystemFileHandle` DOM types. Add type guard functions for
`FileSystemHandle` since it is not a discriminated union.

Signed-off-by: Jon Koops <jonkoops@gmail.com>
This commit is contained in:
Jon Koops
2026-03-26 16:23:46 +01:00
parent a9dd4fd28d
commit a7a14b78c1
6 changed files with 34 additions and 31 deletions
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packages/cli/config/tsconfig.json
+1 -1
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@@ -12,7 +12,7 @@
"incremental": true,
"isolatedModules": true,
"jsx": "react",
"lib": ["DOM", "DOM.Iterable", "ScriptHost", "ES2023"],
"lib": ["DOM", "DOM.Iterable", "DOM.AsyncIterable", "ScriptHost", "ES2023"],
"module": "ES2020",
"moduleResolution": "bundler",
"noEmit": false,