xcode compilation breaking Travis metanorma-standoc

[opoudjis]

issue so far restricted to metanorma-standoc, OSX builds; other gems building fine:

Still running (12 of 20): brew install --HEAD https://raw.githubusercontent.com/metanorma/homebrew-metanorma/master/Formula/metanorma.rb
2402The command brew install --HEAD https://raw.githubusercontent.com/metanorma/homebrew-metanorma/master/Formula/metanorma.rb exited with 1.
2403
2404Log:
2405
2406Warning: Your Xcode (9.4.1) is outdated.
2407Please update to Xcode 10.1 (or delete it).
2408Xcode can be updated from the App Store.
2409
2410

....

/Users/travis/.travis/functions: line 553: 14616 Terminated: 15          travis_jigger "${!}" "${timeout}" "${cmd[@]}"
2564The command "if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then travis_wait brew install --HEAD https://raw.githubusercontent.com/metanorma/homebrew-metanorma/master/Formula/metanorma.rb ; fi" failed and exited with 1 during .
2565
2566

[ronaldtse]

Recently I had to do xcode-install to agree to the new Apple Xcode agreement; this is probably due to the update of macOS.

metanorma-standoc requires Xcode because of the sassc gem and nokogiri.

[CAMOBAP]

@ronaldtse looks like Travis issue doesn't relate to Xcode agreement. It's just took to long to install gem, BTW now the issue resolved

So I propose to close this one

[ronaldtse]

OK. Thanks. I think we need to migrate this repo and other ones to GitHub actions. Travis is rather flaky.