Exit_0

A simple method that raises Exit_0::Non_0 if $?.exitstatus is not 0.

Don't like Exit_0? Try:

posix-spawn. That is the easiest way to handle child processes (aka shelling out).
open4
POpen4
Here are other alternatives.

Windows

Use something else. Check the previous list above for other alternatives, especialy POpen4, which is Windows and POSIX compatible.

Implementation

Exit_0 runs your command through bash:

Exit_0 "
  cd ~/
  pwd
"

# --> Your command is processed as:
str = str.split("\n").map(:strip).map(&:reject).join('&&')
"bash -lc #{str.inspect}"

Exit_0 lives in one file. So if you have any questions, here it is.

Installation

gem install Exit_0

Usage

require "Exit_0"

Exit_0 'uptime'
Exit_0 'ls', :input=>' /some/dir '
Exit_0 { system "uptime" }

# The following raises an error.
Exit_0 'uptimeSS'
Exit_0 { `uptimeSSS` }

# Exit_0 and Exit_0 are the same.
Exit_0 'uptime'
Exit_0 'grep a', :input=>"a \n b \n c"

# Get results from standard output, standard error.
Exit_0('uptime').out      # String is stripped.
Exit_0('uptimeSS').err    # String is stripped.

Exit_0('uptime').raw_out  # Raw string, no :strip used.
Exit_0('uptime').raw_err  # Raw string, no :strip used.

Run Tests

git clone git@github.com:da99/Exit_0.git
cd Exit_0
bundle update
bundle exec bacon spec/main.rb

"I hate writing."

If you know of existing software that makes the above redundant, please tell me. The last thing I want to do is maintain code.

Exit_Zero

Development