Debian packaging

[suntong]

Following up with #43

I'm packaging fsutil in preparing for the upcoming docker cli packaging.
However, I'm facing difficulties doing that due the test needs to be done as root.
There is a lengthy discussion in debian-go dlist at
https://lists.debian.org/debian-go/2020/03/msg00106.html

Do you have any suggestions how I can proceed?
If I need to change the test files to incorporate Debian packaging, would you accept my PRs?

thanks

[suntong]

My plan is to mark all failed test to be skipped at Debian-build time with a call to the Skip method --

    if testing.Short() {
        t.Skip("skipping test that would fail in Debian-build.")
    }

However, the down side is that, it also means the test in short mode has an ambiguous meaning.

Due to my limited knowledge, this is the only way I know that can make it working.

[suntong]

the down side is that, it also means the test in short mode has an ambiguous meaning

This will remove the ambiguity:

if testing.Short() && os.Getenv("DEB_BUILD_ARCH_OS") != ""  {
    t.Skip("skipping test that would fail in Debian-build.")
}

So now the changes will not have side effects.

Would you accept my PRs in this case?

[tonistiigi]

we can just skip things that require root. We already have smth like this

fsutil/diskwriter_test.go

Line 21 in 013a9fe

func requiresRoot(t *testing.T) {

[suntong]

Thanks @tonistiigi, I'll skip the rest that require root and failed in Debian packaging, and submit a PR...

[suntong]

Done. Please approve #78 and tag a new release.