feat: NewDAGProvider to walk partial DAGs in offline mode #905
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Signed-off-by: Abhinav Prakash <[email protected]>
Signed-off-by: Abhinav Prakash <[email protected]>
Signed-off-by: Abhinav Prakash <[email protected]>
The DAG provider creates a KeyChanFunc for all the CIDs found traversing the merkledag from given root. It can be used to provide specific DAGs (i.e. MFS) from their root.
This adds a SkipNotFound option to the FetcherConfig skips branch traversal when the blockservice returns ipld.NotFound. The result is that the fetcher is able to traverse dags in offline mode.
This was referenced Apr 2, 2025
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This PR makes MFS provider described in ipfs/kubo#10386 possible.
Kubo PR that uses this PR: ipfs/kubo#10754
More context:
This PR is local continuation of #847 (in actuality, it was @hsanjuan rewriting most of original code) allowing for use in ipfs/kubo#10754 without pointing at a fork.