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From: "Yann E. MORIN" <yann.morin.1998@free.fr>
To: Geoff Levand <geoff@infradead.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>, buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH] package/flannel: Bump to version 0.25.2
Date: Wed, 29 May 2024 20:18:52 +0200	[thread overview]
Message-ID: <ZldxjKMyzPIK1djL@landeda> (raw)
In-Reply-To: <31d643d8-4bca-4817-a6f2-a40ac0d77d37@infradead.org>

Geoff, All,

On 2024-05-29 17:58 +0900, Geoff Levand spake thusly:
> On 5/29/24 15:30, Peter Korsgaard wrote:
> >>>>>> "Geoff" == Geoff Levand <geoff@infradead.org> writes:
> >  > -sha256  8406a3b2b799344197c79f96e5b39ea7b6228f0bb2cb069b5f44dce684e29b9b  flannel-0.25.1-go2.tar.gz
> >  > +sha256  565dedf012a358d87d6bb89a4b7118a4a7ab9a3aada9b9bf76349ca5e451d954  flannel-0.25.2-go2.tar.gz
> > Hmm, I get a different hash here?
> > ERROR: while checking hashes from package/flannel/flannel.hash
> > ERROR: flannel-0.25.2-go2.tar.gz has wrong sha256 hash:
> > ERROR: expected: 565dedf012a358d87d6bb89a4b7118a4a7ab9a3aada9b9bf76349ca5e451d954
> > ERROR: got     : e181a5e4233db47b0f03718ea801274c3a6024d235ead76e974f3df4f4183de1
> I see this in the build log;
>   flannel-0.25.2-go2.tar.gz: OK (sha256: 565dedf012a358d87d6bb89a4b7118a4a7ab9a3aada9b9bf76349ca5e451d954)
>   >>> flannel 0.25.2 Extracting
> Maybe there was some problem with your download of flannel-0.25.2-go2.tar.gz 

The issue has been identified:
  - we now require tar >= 1.35 (for reproducibility of tarballs)
  - we check whether the tar on the host system is suitable
  - if not, then we build our own host-tar, and use that

So we should always use a valid tar: either the system one, or our own.

However (there is always a "however"), the user can set TAR in their
environment, to instruct Buildroot to use that specific tar. For
example, it is possible to do:

    $ TAR=tar-1.35 make

So, when we check whether the host tar is suitable, we in fact check
that $(TAR) as provided by the user (and if not given, then we default
to looking 'tar' in PATH).

But we do not use $(TAR) from the download helper infrastructure, where
we only use 'tar'.

so, when the user has a system with an older tar in PATH, but provides a
TAR=tar-1.35 when building, then there is a discrepancy between the tar
we check, and the one we use.

Boom.

That's what happened to Peter.

Regards,
Yann E. MORIN.

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  reply	other threads:[~2024-05-29 18:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-29  0:15 [Buildroot] [PATCH] package/flannel: Bump to version 0.25.2 Geoff Levand
2024-05-29  6:30 ` Peter Korsgaard
2024-05-29  8:58   ` Geoff Levand
2024-05-29 18:18     ` Yann E. MORIN [this message]
2024-05-30 18:17       ` Peter Korsgaard

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