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index.js
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index.js
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const path = require('path');
function ModuleMappingPlugin(mappings) {
const absoluteMappings = Object.keys(mappings)
.reduce((current, key) => Object.assign({}, current, {
[path.resolve(key)]: path.resolve(mappings[key])
}), {});
const mappingExists = data => !!absoluteMappings[data.resource];
const overrideResource = data => Object.assign({}, data, {
userRequest: absoluteMappings[data.resource],
resource: absoluteMappings[data.resource]
});
return {
apply: compiler => {
compiler.plugin('normal-module-factory', moduleFactory => {
moduleFactory.plugin('after-resolve', (data, callback) => {
mappingExists(data) ? callback(null, overrideResource(data)) : callback(null, data);
});
});
}
};
}
module.exports = ModuleMappingPlugin;