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class method
Open3.pipeline_w
pipeline_w(*cmds, &block)
lib/open3.rb
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# File tmp/rubies/ruby-3.0.5/lib/open3.rb, line 560
def pipeline_w(*cmds, &block)
if Hash === cmds.last
opts = cmds.pop.dup
else
opts = {}
end
in_r, in_w = IO.pipe
opts[:in] = in_r
in_w.sync = true
pipeline_run(cmds, opts, [in_r], [in_w], &block)
end
Open3.pipeline_w starts a list of commands as a pipeline with a pipe which connects to stdin of the first command.
Open3.pipeline_w(cmd1, cmd2, ... [, opts]) {|first_stdin, wait_threads|
...
}
first_stdin, wait_threads = Open3.pipeline_w(cmd1, cmd2, ... [, opts])
...
first_stdin.close
Each cmd is a string or an array. If it is an array, the elements are passed to Process.spawn.
cmd: commandline command line string which is passed to a shell [env, commandline, opts] command line string which is passed to a shell [env, cmdname, arg1, ..., opts] command name and one or more arguments (no shell) [env, [cmdname, argv0], arg1, ..., opts] command name and arguments including argv[0] (no shell) Note that env and opts are optional, as for Process.spawn.
Example:
Example
Open3.pipeline_w("bzip2 -c", :out=>"/tmp/hello.bz2") {|i, ts| i.puts "hello" }