[Swift-devel] New built-in system, request for comments

[Yadu Nand Babuji]

Ketan,

Do we need that ? If you add stdout, stderr and say exitcode as returns, 
the user has no
choice but to define variables to hold those return values.

Mihael mentioned in a separate thread that the behavior should be to 
fail early in case the
executed string returns a non-zero exitcode.

-Yadu

On 04/04/2014 10:58 PM, Ketan Maheshwari wrote:
> Is it possible to handle stdout and/or stderr of system("command") 
> separately? That way, it might be useful in other places as well.
>
>
> On Fri, Apr 4, 2014 at 12:08 PM, Yadu Nand <yadudoc1729 at gmail.com 
> <mailto:yadudoc1729 at gmail.com>> wrote:
>
>     Hi,
>
>     I have just added a new builtin "system" to trunk. It takes a string,
>     which is executed in the shell
>     by java and the results are returned as an array. This is done to make
>     mappings easier, for example,
>     you can map an entire folder "foo" using the following :
>
>     file folder[ ] < array_mapper; files = system ("find foo -type f") >;
>
>     If the execution of the string provided fails, the logger would report
>     the the exitcode and stderr to
>     the swift stdout.
>
>     Thanks,
>     Yadu Nand B
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