Installing multiple versions of Xcode simultaneously installs wrong versions

[keith]

I needed to install a few old versions of Xcode for testing old Swift versions. I fired off downloads for 6.0.1, 6.2 and 6.4 in different terminals, when they all finished I realized that it installed 6.0.1 3 times.

Not sure the cause of this but we should either fix it or warn that another job is happening before allowing an install.

[mrcljx]

The problem is this line:

source = Dir.glob('/Volumes/Xcode/Xcode*.app').first

which will use the Volume that was mounted first (instead of /Volumes/Xcode 1/..., /Volumes/Xcode 2/... etc).

[neonichu]

I guess we have to parse the hdiutil output in the code prior to that to ensure the right volume is used.