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64 changes: 63 additions & 1 deletion src/tools/chmod-calculator/chmod-calculator.service.test.ts
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import { describe, expect, it } from 'vitest';
import { computeChmodOctalRepresentation } from './chmod-calculator.service';
import { computeChmodOctalRepresentation, computeChmodSymbolicRepresentation } from './chmod-calculator.service';

describe('chmod-calculator', () => {
describe('computeChmodOctalRepresentation', () => {
Expand Down Expand Up @@ -64,5 +64,67 @@ describe('chmod-calculator', () => {
}),
).to.eql('222');
});

it('get the symbolic representation from permissions', () => {
expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: true, write: true, execute: true },
group: { read: true, write: true, execute: true },
public: { read: true, write: true, execute: true },
},
}),
).to.eql('rwxrwxrwx');

expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: false, write: false, execute: false },
group: { read: false, write: false, execute: false },
public: { read: false, write: false, execute: false },
},
}),
).to.eql('---------');

expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: false, write: true, execute: false },
group: { read: false, write: true, execute: true },
public: { read: true, write: false, execute: true },
},
}),
).to.eql('-w--wxr-x');

expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: true, write: false, execute: false },
group: { read: false, write: true, execute: false },
public: { read: false, write: false, execute: true },
},
}),
).to.eql('r---w---x');

expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: false, write: false, execute: true },
group: { read: false, write: true, execute: false },
public: { read: true, write: false, execute: false },
},
}),
).to.eql('--x-w-r--');

expect(
computeChmodSymbolicRepresentation({
permissions: {
owner: { read: false, write: true, execute: false },
group: { read: false, write: true, execute: false },
public: { read: false, write: true, execute: false },
},
}),
).to.eql('-w--w--w-');
});
});
});
15 changes: 14 additions & 1 deletion src/tools/chmod-calculator/chmod-calculator.service.ts
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
import _ from 'lodash';
import type { GroupPermissions, Permissions } from './chmod-calculator.types';

export { computeChmodOctalRepresentation };
export { computeChmodOctalRepresentation, computeChmodSymbolicRepresentation };

function computeChmodOctalRepresentation({ permissions }: { permissions: Permissions }): string {
const permissionValue = { read: 4, write: 2, execute: 1 };
Expand All @@ -15,3 +15,16 @@ function computeChmodOctalRepresentation({ permissions }: { permissions: Permiss
getGroupPermissionValue(permissions.public),
].join('');
}

function computeChmodSymbolicRepresentation({ permissions }: { permissions: Permissions }): string {
const permissionValue = { read: 'r', write: 'w', execute: 'x' };

const getGroupPermissionValue = (permission: GroupPermissions) =>
_.reduce(permission, (acc, isPermSet, key) => acc + (isPermSet ? _.get(permissionValue, key, '') : '-'), '');

return [
getGroupPermissionValue(permissions.owner),
getGroupPermissionValue(permissions.group),
getGroupPermissionValue(permissions.public),
].join('');
}
6 changes: 5 additions & 1 deletion src/tools/chmod-calculator/chmod-calculator.vue
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
import { useThemeVars } from 'naive-ui';

import InputCopyable from '../../components/InputCopyable.vue';
import { computeChmodOctalRepresentation } from './chmod-calculator.service';
import { computeChmodOctalRepresentation, computeChmodSymbolicRepresentation } from './chmod-calculator.service';

import type { Group, Scope } from './chmod-calculator.types';

Expand All @@ -22,6 +22,7 @@ const permissions = ref({
});

const octal = computed(() => computeChmodOctalRepresentation({ permissions: permissions.value }));
const symbolic = computed(() => computeChmodSymbolicRepresentation({ permissions: permissions.value }));
</script>

<template>
Expand Down Expand Up @@ -57,6 +58,9 @@ const octal = computed(() => computeChmodOctalRepresentation({ permissions: perm
<div class="octal-result">
{{ octal }}
</div>
<div class="octal-result">
{{ symbolic }}
</div>

<InputCopyable :value="`chmod ${octal} path`" readonly />
</div>
Expand Down