job file: add a way to choose script language

[suhr]

For example, if rc shell (http://en.wikipedia.org/wiki/Rc, also a part of 9base and plan9port) is using.
Variant #1:
    ...
    script /opt/9/bin/rc
        [rc code here]
    end script
    ...
Variant #2:
    ...
    script
        #!/opt/9/bin/rc
        [rc code here]
    end script
   ....
So, you could use short rc/perl/python/etc script inside job file without being have to create outside script file.

[Steve Langasek (vorlon)]

I don't see this as desirable. Consistency is valuable here - arbitrary scripting languages also implies arbitrary parser conflicts, which we shouldn't have to deal with. I think using 'exec' with an internal script is already a perfectly appropriate way to support languages other than POSIX shell.

[Dimitri John Ledkov (xnox)]

Yes, I also believe one should just exec a different interpreter and simply pass the script with -c (which rc, python and others support).

POSIX shell is good enough complete scripting language, with low dependencies and runtime requirements.

I'm inclined to mark this bug won't fix.