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refactor(cli): drop the redundant existence pre-check in resolveWindowsShellLayer

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loadOverlayPatches already throws on a missing file (the caller named
it, so absence is a misconfiguration) — the existsSync guard was a
second fail-loud mechanism for the same miss with a prettier message.
The loader's throw keeps the fail-loud contract the Windows-default
note records.
This commit is contained in:
Huanqi Cao
2026-08-09 18:53:38 +08:00
parent 8af10a54b9
commit 63ad5d6d98
2 changed files with 6 additions and 7 deletions
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9
apps/cli/src/windows-shell.ts
View File

@@ -10,7 +10,6 @@
* @module @deepseek-ai/dsh/windows-shell
*/
import { existsSync } from 'node:fs'
import { join } from 'node:path'
import type { PatchOptions } from '@cordisjs/plugin-include'
import { loadOverlayPatches, type ProfileLayer } from '@deepseek-ai/dsh-app-boot'
@@ -36,8 +35,9 @@ export interface WindowsShellLayer {
* @param binName - the diagnostic prefix on thrown errors (`dsh`).
* @returns the pwsh layer on win32, else `undefined`. A custom profile that
* mounts no base bundle is skipped (it owns its shell stack); a base
* bundle that ships no Windows shell patch fails loud — the shipped
* package always carries it, so a miss is a broken installation.
* bundle whose Windows shell patch is missing fails loud in
* {@link loadOverlayPatches} — the shipped package always carries it, so
* a miss is a broken installation.
*/
export function resolveWindowsShellLayer(
platform: NodeJS.Platform,
@@ -48,8 +48,5 @@ export function resolveWindowsShellLayer(
const base = layers.find(layer => layer.packageName === BASE_BUNDLE)
if (base === undefined) return undefined
const label = join(base.packageDir, WINDOWS_SHELL_PATCH_FILENAME)
if (!existsSync(label)) {
throw new Error(`${binName}: ${BASE_BUNDLE} ships no ${WINDOWS_SHELL_PATCH_FILENAME}`)
}
return { label, patches: loadOverlayPatches(binName, label) }
}

4
apps/cli/tests/windows-shell.spec.ts
View File

@@ -60,8 +60,10 @@ describe('resolveWindowsShellLayer', () => {
it('fails loud when the base bundle ships no Windows shell patch', () => {
const base = tempBase()
mkdirSync(base, { recursive: true })
// The overlay loader owns the fail-loud contract: the caller named this
// file, so its absence is a misconfiguration, not "no overlay".
expect(() => resolveWindowsShellLayer('win32', [fakeLayer(BASE_BUNDLE, base)], 'dsh'))
.toThrow(/@deepseek-ai\/dsh-base ships no windows\.cordis\.patch\.yml/)
.toThrow(/dsh: failed to read overlay .*windows\.cordis\.patch\.yml/)
})
})