From 35b518711938c2bc88f35d104bb35d9956f0c267 Mon Sep 17 00:00:00 2001 From: Corentin Thomasset Date: Wed, 23 Nov 2022 21:57:38 +0100 Subject: feat(new-tool): chmod calculator --- src/tools/chmod-calculator/chmod-calculator.service.ts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 src/tools/chmod-calculator/chmod-calculator.service.ts (limited to 'src/tools/chmod-calculator/chmod-calculator.service.ts') diff --git a/src/tools/chmod-calculator/chmod-calculator.service.ts b/src/tools/chmod-calculator/chmod-calculator.service.ts new file mode 100644 index 0000000..8953551 --- /dev/null +++ b/src/tools/chmod-calculator/chmod-calculator.service.ts @@ -0,0 +1,17 @@ +import _ from 'lodash'; +import type { GroupPermissions, Permissions } from './chmod-calculator.types'; + +export { computeChmodOctalRepresentation }; + +function computeChmodOctalRepresentation({ permissions }: { permissions: Permissions }): string { + const permissionValue = { read: 4, write: 2, execute: 1 }; + + const getGroupPermissionValue = (permission: GroupPermissions) => + _.reduce(permission, (acc, isPermSet, key) => acc + (isPermSet ? _.get(permissionValue, key, 0) : 0), 0); + + return [ + getGroupPermissionValue(permissions.owner), + getGroupPermissionValue(permissions.group), + getGroupPermissionValue(permissions.public), + ].join(''); +} -- cgit v1.2.3