[Pharo-users] [ANN] OSSubprocess first milestone

Mariano Martinez Peck marianopeck at gmail.com
Thu Jan 14 13:33:56 EST 2016


Dear all,

I am happy to tell you I have a first prototype of the tool for executing
OS processes:

https://github.com/marianopeck/OSSubprocess

 As I said many times, the main idea was to be as much as possible
FFI-based, only for executing OS commands and, from my point of view, a
better end-user API. Also, as for the first step, I had to focus on
Linux/OSX.

I would like to thank Pharo Consortium for the sponsor of this development
effort. Here is the first milestone!

There are many things on my to-do but I think the code is ready for some
usage, testing, code review and feedback!

All classes and all methods have comments and I have quite some unit tests.
All tests are green in my OSX and a CentOS box.

*Important: you CANNOT have OSProcess installed in the same image as
OSSubprocess. This is because I am reusing his SIGCHLD handler and for the
time being both cannot coexist.  *

Keep in mind that the tool may be unstable and that MAY mean a VM crash. So
use with care, mostly the first time. If all tests passes, then there are
much less chances of something going bad.

Important disclaimer: my tool (OSSubproccess from now onward) is HIGHLY
influenced by a subset of the OSProcess project. There are parts which I
even simply copied and adapted them (OSSPipe, OSSAttachableStream,
OSSUnixProcessExitStatus). Other parts, I took them as inspiration (the
idea of ThisOSProcess representing the VM process, the child watcher, and
many others). In addition, I AM STILL USING (maybe as a first step?) some
of the OSProcess PLUGIN (not OSProcess image side), such as the SIGCHLD
handler or the creation of pipes.

In github url you have all the documentation of the project, included how
to install it and use it.

*Finally, if you test it in a OS different than OSX and CentOS please share
with me the results (about the tests).* Tomorrow the ConfigurationOf should
also appear in the Catalog of Pharo 5.0.

Any feedback is appreciated.

Best,

-- 
Mariano
http://marianopeck.wordpress.com
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