https://github.com/wincent/wopen3

Open3 replacement
https://github.com/wincent/wopen3

Last synced: 3 months ago
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Open3 replacement

• Host: GitHub
• URL: https://github.com/wincent/wopen3
• Owner: wincent
• License: bsd-2-clause
• Created: 2009-05-13T22:08:21.000Z (about 17 years ago)
• Default Branch: master
• Last Pushed: 2024-03-01T17:00:37.000Z (over 2 years ago)
• Last Synced: 2025-01-05T15:43:34.758Z (over 1 year ago)
• Language: Ruby
• Homepage: http://www.wincent.com/a/products/walrus/wopen3/
• Size: 27.3 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.html
  • License: LICENSE.txt

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README

          
Wopen3 is a replacement for Open3. Unlike Open3, Wopen3 does not throw away

the exit code of the executed (grandchild) process. Only a child process is

spawned and the exit status is returned in $? as normal.


Usage example:


result, errors = '', ''

Wopen3.popen3('git', 'log') do |stdin, stdout, stderr|

  threads = []

  threads << Thread.new(stdout) do |out|

    out.each { |line| result << line }

  end

  threads << Thread.new(stderr) do |err|

    err.each { |line| errors << line }

  end

  threads.each { |thread| thread.join }

end

status = $?.exitstatus

raise "Non-zero exit status #{status}" if status != 0


As this is such a common usage pattern, a 'system' method is provided as a

convenience:


result = Wopen3.system('git', 'log')

result.success? # => true

result.status   # => 0

result.stderr   # => ''

result.stdout   # => 'commit 491411b3...'