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pass config #8

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merged 1 commit into from
Dec 12, 2022
Merged

pass config #8

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121 changes: 87 additions & 34 deletions src/transformer.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -17,22 +17,24 @@ interface Config {
* custom cache key
* if not set, I will combine all transform's cahceKey.
*/
getCacheKey?: Transformer<Config>['getCacheKey'] | Transformer<Config>['getCacheKeyAsync'];
getCacheKey?:
| Transformer<Config>['getCacheKey']
| Transformer<Config>['getCacheKeyAsync'];
}

const requireTransformer = (path: string) => {
const transformer = (require(path).default || require(path));
const requireTransformer = (path: string, config: Record<string, any>) => {
const transformer = require(path).default || require(path);

if (!transformer.process && !transformer.processAsync) {
if (transformer.createTransformer) {
return transformer.createTransformer();
return transformer.createTransformer(config || {});
}

return null;
}

return transformer;
}
};

const flatTransformers = (transformers: Config['transformers']) => {
const containers: any[] = [];
Expand All @@ -41,25 +43,24 @@ const flatTransformers = (transformers: Config['transformers']) => {
let transformerModule;

if (typeof transformer === 'string') {
transformerModule = requireTransformer(transformer);
transformerModule = requireTransformer(transformer, {});

if (!transformerModule) {
console.error(`cant load ${transformer} as a transformer, so skip it`);
break;
}
}
else if (Array.isArray(transformer)) {
} else if (Array.isArray(transformer)) {
transformerModule = {
...requireTransformer(transformer[0]),
transformerConfig: transformer[1]
...requireTransformer(transformer[0], transformer[1]),
transformerConfig: transformer[1],
};
}

containers.push(transformerModule);
}

return containers;
}
};

const createTransformer = (): Transformer<Config> => {
let flattenTransformers: any = null;
Expand All @@ -69,49 +70,101 @@ const createTransformer = (): Transformer<Config> => {
return flattenTransformers;
}

flattenTransformers = flatTransformers(options.transformerConfig.transformers);
flattenTransformers = flatTransformers(
options.transformerConfig.transformers
);

return flattenTransformers;
}
};

const constructOptions = <T>(options: TransformOptions<Config>, config: T): TransformOptions<T> => {
const constructOptions = <T>(
options: TransformOptions<Config>,
config: T
): TransformOptions<T> => {
return {
...options,
transformerConfig: config
transformerConfig: config,
};
}
};

return {
canInstrument: true,
getCacheKey: (sourceText: string, sourcePath: string, options: TransformOptions<Config>): string => {
getCacheKey: (
sourceText: string,
sourcePath: string,
options: TransformOptions<Config>
): string => {
const transformers = getFlattenTransformers(options);

return transformers.reduce((res: string, transformer: any) => {
return res + transformer.getCacheKey?.(sourceText, sourcePath, constructOptions(options, transformer.transformerConfig)) || ''
return (
res +
transformer.getCacheKey?.(
sourceText,
sourcePath,
constructOptions(options, transformer.transformerConfig)
) || ''
);
}, '');
},
process: (sourceText: string, sourcePath: string, options: TransformOptions<Config>): string => {
process: (
sourceText: string,
sourcePath: string,
options: TransformOptions<Config>
): string => {
const transformers = getFlattenTransformers(options);

return transformers.reduce((res: { code: string }, transformer: any) => {
return transformer.process?.(res.code ? res.code : res, sourcePath, constructOptions(options, transformer.transformerConfig))
}, { code: sourceText });
return transformers.reduce(
(res: { code: string }, transformer: any) => {
return transformer.process?.(
res.code ? res.code : res,
sourcePath,
constructOptions(options, transformer.transformerConfig)
);
},
{ code: sourceText }
);
},
getCacheKeyAsync: async (sourceText: string, sourcePath: string, options: TransformOptions<Config>) => {
getCacheKeyAsync: async (
sourceText: string,
sourcePath: string,
options: TransformOptions<Config>
) => {
const transformers = getFlattenTransformers(options);

return await transformers.reduce(async (res: string, transformer: any) => {
return res + await transformer.getCacheKeyAsync?.(sourceText, sourcePath, constructOptions(options, transformer.transformerConfig)) || ''
}, '');
return await transformers.reduce(
async (res: string, transformer: any) => {
return (
res +
(await transformer.getCacheKeyAsync?.(
sourceText,
sourcePath,
constructOptions(options, transformer.transformerConfig)
)) || ''
);
},
''
);
},
processAsync: async (sourceText: string, sourcePath: string, options: TransformOptions<Config>) => {
processAsync: async (
sourceText: string,
sourcePath: string,
options: TransformOptions<Config>
) => {
const transformers = getFlattenTransformers(options);

return await transformers.reduce(async (res: { code: string }, transformer: any) => {
return await transformer.process?.(res.code ? res.code : res, sourcePath, constructOptions(options, transformer.transformerConfig));
}, { code: sourceText });
}
}
}
return await transformers.reduce(
async (res: { code: string }, transformer: any) => {
return await transformer.process?.(
res.code ? res.code : res,
sourcePath,
constructOptions(options, transformer.transformerConfig)
);
},
{ code: sourceText }
);
},
};
};

export default createTransformer();
export default createTransformer();