a collection of lightweight TypeScript packages for AT Protocol, the protocol powering Bluesky
atproto
bluesky
typescript
npm
chore(car): explain mst
+2
+2
packages/utilities/car/lib/atproto-repo.ts
+2
packages/utilities/car/lib/atproto-repo.ts
···
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const { roots, iterate } = fromUint8Array(new Uint8Array(buf));
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assert(roots.length === 1, `expected only 1 root in the car archive; got=${roots.length}`);
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+
// Collect all archive entries into a mapping of CID string -> actual bytes
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const blockmap: BlockMap = new Map();
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for (const entry of iterate()) {
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blockmap.set(CID.format(entry.cid), entry.bytes);
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}
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+
// Read the head, then walk through the MST tree from there.
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const commit = readObject(blockmap, roots[0]) as Commit;
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for (const { key, cid } of walkEntries(blockmap, commit.data)) {
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const [collection, rkey] = key.split('/');