Cannot run CoffeeScript in shebang mode

[sodabrew]

I'd like to write a command-line tool in CoffeeScript. This does not work:

#!/usr/bin/env phantomjs

# Coffee style comment
console.log "Hello there are no parentheses here because it's coffeescript"

Results in SyntaxError: Parse error

Reason appear to be that the method jsFromScriptFile does not have a way to clue phantomjs in that a file that starts with #! (shebang) might be written in coffeescript.

I could rename my script to scriptname.coffee, and then execute the script directly and it works, but defeats the purpose of having a useful executable script name.

https://github.com/ariya/phantomjs/blob/1.9/src/utils.cpp#L165-189

[ariya]

While the support is there by the above two commits, there's still a bug. Launching like this:

phantomjs --script-language somescript.js

causes PhantomJS to open its REPL. I think it should still reject the empty language value like that.

[sodabrew]

Thanks! Looking forward to the next release :)

[sodabrew]

@ariya I noticed that this hasn't landed in a PhantomJS 1.9.x release yet - may I request a cherry-pick of this PR and related commits -- see https://github.com/ariya/phantomjs/commits?author=sodabrew -- to the 1.9 branch?