api/v0/get?archive=true: tar: time stamp is in the future

[milahu]

Checklist

• This is a bug report, not a question. Ask questions on discuss.ipfs.io.
• I have searched on the issue tracker for my bug.
• I am running the latest go-ipfs version or have an issue updating.

Installation method

built from source

Version

go-ipfs version: 0.9.1
Repo version: 11
System version: amd64/linux
Golang version: go1.16.7

Config

not relevant

Description

api/v0/get?archive=true produces archives with future timestamps (error is less than one second)

this will throw many warnings when extracting that archive

reproduce:

arg=bafybeiflkjt66aetfgcrgvv75izymd5kc47g6luepqmfq6zsf5w6ueth6y # ipfs-desktop/assets/webui/
curl -X POST "http://localhost:5001/api/v0/get?archive=true&compress=false&arg=$arg" -o o.tar 
tar xf o.tar

output:

tar: <some-file>: time stamp 2021-09-04 14:24:46 is 0.291997891 s in the future
...

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[Stebalien]

That's definitely not a bug in go-ipfs, it's likely NTP adjusting your clock. You can safely ignore the warning.

[Stebalien]

I... take that back. Go is rounding time up.

[Stebalien]

Fix in ipfs/go-ipfs-files#41.

[milahu]

Go is rounding time up.

thanks for investigating : )