[ANN] session-2.1.5

ruby-talk
1

http://www.codeforpeople.com/lib/ruby/session/

2.1.5:

  • added Session.use_spawn=, AbstractSession.use_spawn=, and an :use_session=>
    option to AbstractSession#initialize. if any of them are set the code uses
    Spawn::spawn to create external processes instead of Open3::popen3.
    Spawn::spawn uses named pipes (fifos) for IPC instead of forking and pipes.
    the fork used in popen3 can cause strange behaviour with multi-threaded apps
    (like a tk app). see source for details

NAME

Session
::Sh
::Bash
::Csh
::Tcsh
::Shell
::IDL

SYNOPSIS

Session::* offers a set of class for driving external progams via pipes. It
offers a significant abstraction over Open3::popen since stdout/stderr can
be processed individually for each command. Additionally the exit_status of
each command is made available. eg.

bash = Session::Bash.new

stdout, stderr = bash.execute 'ls'

or

bash = Session::Bash.new

stdout, stderr = StringIO.new, StringIO.new

bash.execute 'ls', :stdout => stdout, :stderr => stderr
exit_status = bash.exit_status

or

bash = Session::Bash.new

# output is passed to the block as it is produced!
bash.execute( 'long_running_command.exe' ) do |out, err|
  logger << out if out
  elogger << err if err
end

SAMPLES

see samples/*

AUTHOR

ara.t.howard@noaa.gov

-a

···

–

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print "\x3a\x2d\x29\x0a"”;done
===============================================================================

2

This totally kicks butt!

Would you consider making a RubyForge project out of it?

I am definitely going to use this here at DARPA.

best,

Rich

···

On Mar 25, 2004, at 11:34 AM, Ara.T.Howard wrote:

http://www.codeforpeople.com/lib/ruby/session/

2.1.5:

  • added Session.use_spawn=, AbstractSession.use_spawn=, and an
    :use_session=>
    option to AbstractSession#initialize. if any of them are set the
    code uses
    Spawn::spawn to create external processes instead of Open3::popen3.
    Spawn::spawn uses named pipes (fifos) for IPC instead of forking
    and pipes.
    the fork used in popen3 can cause strange behaviour with
    multi-threaded apps
    (like a tk app). see source for details

NAME

Session
::Sh
::Bash
::Csh
::Tcsh
::Shell
::IDL

SYNOPSIS

Session::* offers a set of class for driving external progams via
pipes. It
offers a significant abstraction over Open3::popen since
stdout/stderr can
be processed individually for each command. Additionally the
exit_status of
each command is made available. eg.

bash = Session::Bash.new

stdout, stderr = bash.execute 'ls'

or

bash = Session::Bash.new

stdout, stderr = StringIO.new, StringIO.new

bash.execute 'ls', :stdout => stdout, :stderr => stderr
exit_status = bash.exit_status

or

bash = Session::Bash.new

# output is passed to the block as it is produced!
bash.execute( 'long_running_command.exe' ) do |out, err|
  logger << out if out
  elogger << err if err
end

SAMPLES

see samples/*

AUTHOR

ara.t.howard@noaa.gov

-a

=======================================================================

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print
"\x3a\x2d\x29\x0a"”;done
=======================================================================
========

3

This totally kicks butt!

thanks. it’s been really useful thus far.

Would you consider making a RubyForge project out of it?

sure. i’ve just got too much going on at the moment to breath… any advice
on the subject?

I am definitely going to use this here at DARPA.

cool. feel free to contact me directly with any comments, especially those
containing patches! :wink:

cheers.

-a

···

On Fri, 26 Mar 2004, Richard Kilmer wrote:

best,

Rich
On Mar 25, 2004, at 11:34 AM, Ara.T.Howard wrote:

http://www.codeforpeople.com/lib/ruby/session/

2.1.5:

  • added Session.use_spawn=, AbstractSession.use_spawn=, and an
    :use_session=>
    option to AbstractSession#initialize. if any of them are set the
    code uses
    Spawn::spawn to create external processes instead of Open3::popen3.
    Spawn::spawn uses named pipes (fifos) for IPC instead of forking
    and pipes.
    the fork used in popen3 can cause strange behaviour with
    multi-threaded apps
    (like a tk app). see source for details

NAME

Session
::Sh
::Bash
::Csh
::Tcsh
::Shell
::IDL

SYNOPSIS

Session::* offers a set of class for driving external progams via
pipes. It
offers a significant abstraction over Open3::popen since
stdout/stderr can
be processed individually for each command. Additionally the
exit_status of
each command is made available. eg.

bash = Session::Bash.new

stdout, stderr = bash.execute 'ls'

or

bash = Session::Bash.new

stdout, stderr = StringIO.new, StringIO.new

bash.execute 'ls', :stdout => stdout, :stderr => stderr
exit_status = bash.exit_status

or

bash = Session::Bash.new

# output is passed to the block as it is produced!
bash.execute( 'long_running_command.exe' ) do |out, err|
  logger << out if out
  elogger << err if err
end

SAMPLES

see samples/*

AUTHOR

ara.t.howard@noaa.gov

-a

=======================================================================

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print
"\x3a\x2d\x29\x0a"”;done
=======================================================================
========

–

EMAIL :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
PHONE :: 303.497.6469
ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
URL :: Solar-Terrestrial Physics Data | NCEI
TRY :: for l in ruby perl;do $l -e “print "\x3a\x2d\x29\x0a"”;done
===============================================================================