exec:// streams -- how to wait until the process is done?

[Jason S]

canRead, canWrite, eof don't seem to correlate with when a process is done.... If I run an external program that takes a while (like "svn co ...") how do I know when it is done?

[Shanti Rao]

Jason,

Here's what's supposed to happen:

• Stream.canWrite is true while the process is running
• Stream.canRead is true when the fifo is non-empty
• Stream.eof is true when the process is done and the fifo is empty
• Stream.readFile() waits until the process ends and returns all remaining output.
  

Getting this to work correctly on all OSs has been a challenge. Which versions of JSDB and OSX are you running?

Shanti

[Jason S]

False alarm -- Stream.eof seems to work correctly after all, I had a bad svn repository connection while using svn via jsdb's stream-exec and I just wasn't getting the results I expected.

[Jason S]

ooh -- looks like readFile() is an even better choice, if I don't need to read process output as it is being streamed.