[Libvirt-ci] Failed: libvirt/libvirt#1023 (master - 7071350)

[Travis CI]

Build Update for libvirt/libvirt
-------------------------------------

Build: #1023
Status: Failed

Duration: 22 minutes and 47 seconds
Commit: 7071350 (master)
Author: Daniel P. Berrangé
Message: travis: unlink python package before upgrading brew packages

The 'brew upgrade' command is pulling in the python2 package which
promptly fails due to clashing symlinks installed by the new python
package (which is python3 based):

==> Pouring python at 2-2.7.14_3.sierra.bottle.tar.gz
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/2to3-2
Target /usr/local/bin/2to3-2
is a symlink belonging to python. You can unlink it:
  brew unlink python
To force the link and overwrite all conflicting files:
  brew link --overwrite python at 2
To list all files that would be deleted:
  brew link --overwrite --dry-run python at 2

By running 'brew unlink python' we can get rid of the python3 links that
we didn't want in the first place and avoid this error.

This is the working fix for what we previously attempted todo in:

  commit c9c9fc90ce77ac4a3079c99f42b621937b464700
  Author: Daniel P. Berrangé <berrange at redhat.com>
  Date:   Mon Mar 5 10:13:12 2018 +0000

    travis: force install of python2 into $PATH on macOS

Reviewed-by: Andrea Bolognani <abologna at redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>

View the changeset: https://github.com/libvirt/libvirt/compare/9cd42e725f42...70713503dbf8

View the full build log and details: https://travis-ci.org/libvirt/libvirt/builds/353846970?utm_source=email&utm_medium=notification

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