emerge: Couldn't resolve host 'github.com'

[Xiaochu Liu]

Hi there,

I'm adding a package ebuild written in go. In one of steps of my ebuild file,  it issues 'go get' command which under the hood fetches (git clone) all other dependencies from github. But it shows errors (in bold text):

# cd .; git clone https://github.com/urfave/cli /build/kefka/tmp/portage/chromeos-base/cloud-print-connector-1.12/work/cloud-print-connector-1.12/src/github.com/urfave/cli

Cloning into '/build/kefka/tmp/portage/chromeos-base/cloud-print-connector-1.12/work/cloud-print-connector-1.12/src/github.com/urfave/cli'...

fatal: unable to access 'https://github.com/urfave/cli/': Couldn't resolve host 'github.com'

package github.com/urfave/cli: exit status 128

I can successfully 'git clone' that repo in chroot but emerge seems to be under a different network setup? Any hint would be appreciated!

Thanks,

Xiaochu

[Dmitry Torokhov]

See Mike's post "[cros-dev] [PSA] new network restrictions in ebuilds".

"we've turned on network restrictions in ebuilds. this means that,
outside of src_unpack, ebuilds won't be able to access the network.
so far we've only found two ebuilds that this was an issue for (chrome
& autotest). this should hopefully cut down on weird flakes when
packages accidentally try to do network things when building -- you
can't anymore!

so if you see BuildPackages or UnitTest phases failing with errors
like "network unreachable" or similar network failures, it's not
because the bot itself is freaking out, but because we've disabled
network access in the ebuild."

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[Brian Norris]

Is this happening in the src_unpack() phase? If not, you might be seeing this:

[PSA] new network restrictions in ebuilds

https://groups.google.com/a/chromium.org/d/msg/chromium-os-dev/puD1c42lLSQ/CFh3RqYVBQAJ

On Tue, Aug 1, 2017 at 4:58 PM, Xiaochu Liu <xia...@chromium.org> wrote:

[Xiaochu Liu]

Thanks Dmitry and Brian! It was in src_prepare and then I move it to src_unpack and it is working. 

Sorry I will pay more attention to announcement...

[Mike Frysinger]

to be clear, this is not an ebuild we want in the tree.  src_unpack shouldn't be fetching random github repos either.

you probably want to look at:

  http://dev.chromium.org/chromium-os/developer-guide/go-in-chromium-os

-mike