stebalien changed the topic of #ipfs to: Heads Up: To talk, you need to register your nick! Announcements: go-ipfs 0.4.21 and js-ipfs 0.35 are out! Get them from dist.ipfs.io and npm respectively! | Also: #libp2p #ipfs-cluster #filecoin #ipfs-dev | IPFS, the InterPlanetary FileSystem: https://github.com/ipfs/ipfs | Logs: https://view.matrix.org/room/!yhqiEdqNjyPbxtUjzm:matrix.org/ | Forums: https://discuss.ipfs.io | Code of
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<fling>
How to create an ipns for a directory when I don't have actual data? But I have a list of files with sizes and hashes.
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<kivutar>
fling do you know the hash of the directory itself?
<fling>
kivutar: no, creating this directory.
<kivutar>
I don't find anything in the doc, except ipfs get then ipfs add -r -w
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<fling>
kivutar: the files might or might not be available on ipfs
<swedneck__>
sounds like you'd have to do some manual stuff with `ipfs object` or such
<fling>
swedneck__: where to read more about this?
<swedneck__>
i think you'll want to do `ipfs object new unixfs-dir`, then `ipfs object patch add-link <output from last command> <name of new link> <hash of new link>`
<fling>
Is there an easy way to script this?
<fling>
Also how do I construct links from hashes properly?
<fling>
And do I need file sizes at all?
<swedneck__>
just read the documentation for `ipfs object`
<fling>
ok
<swedneck__>
don't think you need file sizes
<swedneck__>
i'm just guessing based off of the help sections for these commands
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<swedneck__>
yeah i think it's extremely simple, you literally just add an object to the empty directory, and give that new object a name
<swedneck__>
`ipfs object new unixfs-dir` creates an empty ipfs directory, to which you can add links/objects
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<fling>
swedneck__: thanks!
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<swedneck__>
i learned something too!
<swedneck__>
also check out `ipfs object stat <hash>`
<swedneck__>
since you talked about sizes
<fling>
my hashes are generic blake2b or sha512, nothing ipfs special
<fling>
Can't really understand what is going on there, not too many comments :P
<swedneck__>
hold up, you added 94GB of data to IPFS that fast?
<fling>
How do I assemble the keys from hashes?
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<bmwiedemann1>
swedneck__: the data was already in IPFS, but I added a link to a tree.
<bmwiedemann1>
without re-hashing everything of course
<swedneck__>
hmm
<swedneck__>
well let me know if i you find any ways to add shitloads of data to ipfs fast
<bmwiedemann1>
when doing ipfs add of data that is mostly already added, I see a lot of disk reads going on - that makes it so slow
<fling>
Does this mean I will be able to add it fast if I have no data? :P
<bmwiedemann1>
swedneck__: how "fast" ? >2MB/s is easy. Just need SSD to get the IOPS. around 100-200 MB/s you might be bottleneckted by the hash function
<swedneck__>
well i'd like to add about 50GB of data before i grow a grey beard
<bmwiedemann1>
at 2MB/s that would be 7h - how fast does your beard grow? :-P
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<bmwiedemann1>
these days I have noticed spinning HDD performance to go down with newer Linux kernel versions, because the performance optimizations are all done for SSDs these days
<gregjeanmartDisc>
wrote an article how to interact with IPFS in Java
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<sblinn[m]>
Hey there. have a quick question. I'm looking to get involved and since my programming skills are in the infancy stage I'm thinking I can help out with content and other ways. Is there a person to touch base with or can someone point me in the right direction. Thanks.