class Fastlane::Actions::XcodeSelectAction

See: developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcode-select.1.html

DESCRIPTION

xcode-select controls the location of the developer directory used by xcrun(1), xcodebuild(1), cc(1),
and other Xcode and BSD development tools. This also controls the locations that are searched for  by
man(1) for developer tool manpages.

DEVELOPER_DIR

Overrides the active developer directory. When DEVELOPER_DIR  is  set,  its  value  will  be  used
instead of the system-wide active developer directory.

Note that for historical reason, the developer directory is considered to be the Developer content
directory inside the Xcode application (for  example  /Applications/Xcode.app/Contents/Developer).
You  can  set  the  environment variable to either the actual Developer contents directory, or the
Xcode application directory -- the xcode-select provided  shims  will  automatically  convert  the
environment variable into the full Developer content path.