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Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
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The variables here are 64-bit on 64-bit builds, so the linter
recommends stripping them. Unfortunately, they're 32-bit on
32-bit builds, so stripping them breaks that. Readd with a nolint
to convince it to not break.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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this is the third round of preparing to use the golangci-lint on our
code base.
Signed-off-by: baude <bbaude@redhat.com>
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We added the explicit int64 casts for 32-bit builds in 35e1ad78 (Make
libpod build on 32-bit systems, 2018-02-12, #324), but the explicit
casts work fine on 64-bit systems too.
Signed-off-by: W. Trevor King <wking@tremily.us>
Closes: #1058
Approved by: mheon
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This removes some boilerplate from the libpod package, so we can focus
on container stuff there. And it gives us a tidy sub-package for
focusing on ctime extraction, so we can focus on unit testing and
portability of the extraction utility there.
For the unsupported implementation, I'm falling back to Go's ModTime
[1]. That's obviously not the creation time, but it's likely to be
closer than the uninitialized Time structure from cc6f0e85 (more
changes to compile darwin, 2018-07-04, #1047). Especially for our use
case in libpod/oci, where we're looking at write-once exit files.
The test is more complicated than I initially expected, because on
Linux filesystem timestamps come from a truncated clock without
interpolation [2] (and network filesystems can be completely decoupled
[3]). So even for local disks, creation times can be up to a jiffie
earlier than 'before'. This test ensures at least monotonicity by
creating two files and ensuring the reported creation time for the
second is greater than or equal to the reported creation time for the
first. It also checks that both creation times are within the window
from one second earlier than 'before' through 'after'. That should be
enough of a window for local disks, even if the kernel for those
systems has an abnormally large jiffie. It might be ok on network
filesystems, although it will not be very resilient to network clock
lagging behind the local system clock.
[1]: https://golang.org/pkg/os/#FileInfo
[2]: https://groups.google.com/d/msg/linux.kernel/mdeXx2TBYZA/_4eJEuJoAQAJ
Subject: Re: Apparent backward time travel in timestamps on file creation
Date: Thu, 30 Mar 2017 20:20:02 +0200
Message-ID: <tqMPU-1Sb-21@gated-at.bofh.it>
[3]: https://groups.google.com/d/msg/linux.kernel/mdeXx2TBYZA/cTKj4OBuAQAJ
Subject: Re: Apparent backward time travel in timestamps on file creation
Date: Thu, 30 Mar 2017 22:10:01 +0200
Message-ID: <tqOyl-36A-1@gated-at.bofh.it>
Signed-off-by: W. Trevor King <wking@tremily.us>
Closes: #1050
Approved by: mheon
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