Hi,

I am having an issue with installing Xcode 11 Beta. When installing, I get Warning: Transient problem: FTP error Will retry in 1 seconds. 3 retries left. I am currently using 2.5.0. If I install it manually from the download page, it works fine.

Did some digging on issues installing the new Xcode 11 beta...

The Xcode 11 beta application bundle has some invalid symlinks that do not pass sptctl -assess (triggered by the verify_app_security_assessment method).

I verified an un-xip'd bundle from Apple:

$ /usr/sbin/spctl --assess --verbose=4 --type execute Xcode-11.app
Xcode-11.app: rejected (invalid destination for symbolic link in bundle)
override=security disabled
origin=Software Signing

upon this failure, xcode-install will delete the copied bundle (see https://github.com/xcpretty/xcode-install/blob/master/lib/xcode/install.rb#L257) from it's destination folder (/Applications/).

I deleted broken symlinks in the bundle:

$ find . -type l ! -exec test -e {} \; -delete

and re-ran:

$ /usr/sbin/spctl --assess --verbose=4 --type execute Xcode-11.app
Xcode-11.app: accepted
override=security disabled

So the only real option (other than "cleaning" the bundle when installing) would be to skip the verify_app_security_assessment method based on some install options or if the Xcode is a beta. @KrauseFx @segiddins @jpsim would you be open to a PR with this behavior to unblock beta installs?