Open Julia in iTerm rather than Terminal if iTerm's installed

[cormullion]

When run, this script looks to see if iTerm is installed. If it is, it opens iTerm, creates a new window, and runs Julia. If it isn't, create a new window in Terminal and run Julia.

This doesn't help someone who has previously installed iTerm but still prefers Terminal...

More testing on all possible permutations of Mac hardware, OS versions, and terminal apps would be nice; I've tried a few but have run out of Macs.

[oxinabox]

Huh,
apparently mac does't have the notion of a default terminal.

https://superuser.com/questions/379342/setting-iterm2-as-the-default-terminal-osx-lion
https://superuser.com/questions/491632/does-x-terminal-emulator-work-on-os-x

The equivalent is to set a terminal as the default handler for some protocols, e.g. ssh.
Though idk how often that is done, given one does not normally attempt to follow a ssh://foo.com link.
I guess one could thus check if iterm is the default handler for ssh, and if so assume the user likes iterm and thus open julia in iterm. And if not use terminal.
but idk that users would actually bother to keep the default handler correct, as I mentioned.

[cormullion]

Yes, it’s all a bit under-featured without doing some more installation work. This is just handling the “double-click the app icon to start” case, so you could argue that ssh-ers would be launching Julia from their preferred terminal app anyway...

[StefanKarpinski]

LGTM modulo the fact that AppleScript is a read-only language, so kudos for getting anything to work at all. This definitely seems like a better experience for iTerm2 users.

[yurivish]

Yes, thanks for doing this!

[vtjnash]

cf. #4197 (comment)
reverts #18522 (reopens #14427)
reverts #14365 partially

[vtjnash]

this script returns:

error "System Events got an error: Script Editor is not allowed to send keystrokes." number 1002

[cormullion]

:) since this PR Apple have probably released two major (breaking) versions of the operating system.

[vtjnash]

yes, although if you follow the first link, I first tried this in 2013, and it couldn't be used then either for the same reason