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fix(vite-plugin-angular): process/transform styles before Angular com…
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packages/vite-plugin-angular/src/lib/component-assets-plugin.ts
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,57 @@ | ||
import type { CompilerHost } from '@angular/compiler-cli'; | ||
import { normalizePath } from '@ngtools/webpack/src/ivy/paths'; | ||
import * as ts from 'typescript'; | ||
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export function augmentHostWithResources( | ||
host: ts.CompilerHost, | ||
transform: ( | ||
code: string, | ||
id: string, | ||
options?: { ssr?: boolean } | ||
) => ReturnType<any> | null, | ||
options: { | ||
inlineStylesExtension?: string; | ||
} = {} | ||
) { | ||
const resourceHost = host as CompilerHost; | ||
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resourceHost.readResource = function (fileName: string) { | ||
const filePath = normalizePath(fileName); | ||
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const content = (this as any).readFile(filePath); | ||
if (content === undefined) { | ||
throw new Error('Unable to locate component resource: ' + fileName); | ||
} | ||
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return content; | ||
}; | ||
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resourceHost.transformResource = async function (data, context) { | ||
// Only style resources are supported currently | ||
if (context.type !== 'style') { | ||
return null; | ||
} | ||
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if (options.inlineStylesExtension) { | ||
// Resource file only exists for external stylesheets | ||
const filename = | ||
context.resourceFile ?? | ||
`${context.containingFile.replace( | ||
/\.ts$/, | ||
`.${options?.inlineStylesExtension}` | ||
)}`; | ||
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let stylesheetResult; | ||
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try { | ||
stylesheetResult = await transform(data, `${filename}?direct`); | ||
} catch (e) { | ||
console.error(`${e}`); | ||
} | ||
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return { content: stylesheetResult?.code || '' }; | ||
} | ||
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return null; | ||
}; | ||
} |