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feat: option to include subfolder prefixes in bucket.list() #1168

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Merged
bosschaert merged 2 commits into from
Nov 25, 2025
Merged

feat: option to include subfolder prefixes in bucket.list() #1168

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9a7df6b
feat: option to include subfolder prefixes in bucket.list()
bosschaert Nov 25, 2025
bb71cdf
fix: change subPrefixes option to just be prefixes
bosschaert Nov 25, 2025
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4 changes: 4 additions & 0 deletions packages/helix-shared-storage/src/storage.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,10 @@ export interface ListOptions {
* whether to list shallow i.e. not recursive
*/
shallow: boolean;
/**
* whether to include subfolder prefixes
*/
subPrefixes: boolean;

@dominique-pfister dominique-pfister Nov 25, 2025

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Would you also settle for prefixes only? They are sub folders, but not sub prefixes 😉

@bosschaert bosschaert Nov 25, 2025

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done

/**
* max number of items to return
*/
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12 changes: 11 additions & 1 deletion packages/helix-shared-storage/src/storage.js
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Expand Up @@ -508,7 +508,7 @@ class Bucket {
*/
async list(prefix, opts = false) {
const {
shallow = false, maxItems = Number.POSITIVE_INFINITY,
shallow = false, maxItems = Number.POSITIVE_INFINITY, subPrefixes = false,
} = typeof opts === 'boolean' ? { shallow: opts } : opts;

let ContinuationToken;
Expand All @@ -526,6 +526,16 @@ class Bucket {
// eslint-disable-next-line no-await-in-loop
const result = await this.client.send(new ListObjectsV2Command(input));
ContinuationToken = result.IsTruncated ? result.NextContinuationToken : '';

if (subPrefixes) {
(result.CommonPrefixes || []).forEach(({ Prefix }) => {
objects.push({
key: Prefix,
path: `${Prefix.substring(prefix.length)}`,
});
});
}

(result.Contents || []).forEach((content) => {
const key = content.Key;
objects.push({
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21 changes: 21 additions & 0 deletions packages/helix-shared-storage/test/fixtures/list-subfolder-prefixes.json
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@@ -0,0 +1,21 @@
{
"ListBucketResult": {
"Name": "helix-code-bus",
"Prefix": "",
"NextContinuationToken": "next",
"KeyCount": 1,
"MaxKeys": 1,
"Delimiter": "/",
"IsTruncated": false,
"Contents": [{
"Key": "/owner/repo/ref/myfolder/somefile.html",
"LastModified": "2021-06-06T04:05:06.000Z",
"Size": "999999"
}],
"CommonPrefixes": [{
"Prefix": "/owner/repo/ref/myfolder/sub1/"
}, {
"Prefix": "/owner/repo/ref/myfolder/sub2/"
}]
}
}
50 changes: 49 additions & 1 deletion packages/helix-shared-storage/test/storage.test.js
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Expand Up @@ -1123,7 +1123,7 @@ describe('Storage test', () => {
.reply(200, new xml2js.Builder().buildObject(listReply));

const bus = storage.codeBus();
const folders = await bus.list('/owner/repo/ref/');
const folders = await bus.list('/owner/repo/ref/', { subPrefixes: true });

assert.deepStrictEqual(folders, [
{
Expand All @@ -1150,6 +1150,54 @@ describe('Storage test', () => {
]);
});

it('can list to include subfolder prefixes', async () => {
const listReply = JSON.parse(await fs.readFile(path.resolve(__testdir, 'fixtures', 'list-subfolder-prefixes.json'), 'utf-8'));
nock('https://helix-code-bus.s3.fake.amazonaws.com')
.get('/?list-type=2&prefix=%2Fowner%2Frepo%2Fref%2Fmyfolder%2F')
.reply(200, new xml2js.Builder().buildObject(listReply));

const bus = storage.codeBus();
const folders = await bus.list('/owner/repo/ref/myfolder/', { subPrefixes: true });

assert.deepStrictEqual(folders, [
{
key: '/owner/repo/ref/myfolder/sub1/',
path: 'sub1/',
},
{
key: '/owner/repo/ref/myfolder/sub2/',
path: 'sub2/',
},
{
contentLength: 999999,
contentType: 'text/html',
key: '/owner/repo/ref/myfolder/somefile.html',
lastModified: new Date('2021-06-06T04:05:06.000Z'),
path: 'somefile.html',
},
]);
});

it('can list to not include subfolder prefixes', async () => {
const listReply = JSON.parse(await fs.readFile(path.resolve(__testdir, 'fixtures', 'list-subfolder-prefixes.json'), 'utf-8'));
nock('https://helix-code-bus.s3.fake.amazonaws.com')
.get('/?list-type=2&prefix=%2Fowner%2Frepo%2Fref%2Fmyfolder%2F')
.reply(200, new xml2js.Builder().buildObject(listReply));

const bus = storage.codeBus();
const folders = await bus.list('/owner/repo/ref/myfolder/');

assert.deepStrictEqual(folders, [
{
contentLength: 999999,
contentType: 'text/html',
key: '/owner/repo/ref/myfolder/somefile.html',
lastModified: new Date('2021-06-06T04:05:06.000Z'),
path: 'somefile.html',
},
]);
});

it('can list fewer items than are available', async () => {
const listReply = JSON.parse(await fs.readFile(path.resolve(__testdir, 'fixtures', 'list-truncated-reply.json'), 'utf-8'));
nock('https://helix-code-bus.s3.fake.amazonaws.com')
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