18 lines
660 B
TypeScript
18 lines
660 B
TypeScript
import _ from 'lodash';
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import type { GroupPermissions, Permissions } from './chmod-calculator.types';
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export { computeChmodOctalRepresentation };
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function computeChmodOctalRepresentation({ permissions }: { permissions: Permissions }): string {
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const permissionValue = { read: 4, write: 2, execute: 1 };
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const getGroupPermissionValue = (permission: GroupPermissions) =>
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_.reduce(permission, (acc, isPermSet, key) => acc + (isPermSet ? _.get(permissionValue, key, 0) : 0), 0);
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return [
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getGroupPermissionValue(permissions.owner),
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getGroupPermissionValue(permissions.group),
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getGroupPermissionValue(permissions.public),
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].join('');
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}
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