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feature #4201 [Components][Process] `mustRun()` documentation (xabbuh)

This PR was submitted for the master branch but it was merged into the 2.5 branch instead (closes #4201).


[Components][Process] `mustRun()` documentation

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes (symfony/symfony#8655)
| Applies to    | 2.5+
| Fixed tickets | #4187

@weaverryan Sorry, this should be merged into 2.5.


ad6a340 [Components][Process] `mustRun()` documentation
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weaverryan committed Oct 1, 2014
2 parents 8c9847d + ad6a340 commit e8a15017248748fa6638fc39ec2e10d255d5277d
Showing with 25 additions and 4 deletions.
  1. +25 −4 components/process.rst
@@ -31,7 +31,7 @@ a command in a sub-process::
throw new \RuntimeException($process->getErrorOutput());
print $process->getOutput();
echo $process->getOutput();
The component takes care of the subtle differences between the different platforms
when executing the command.
@@ -50,6 +50,27 @@ the contents of the output and
:method:`Symfony\\Component\\Process\\Process::clearErrorOutput` clears
the contents of the error output.
.. versionadded:: 2.5
The ``mustRun()`` method was introduced in Symfony 2.5.
The ``mustRun()`` method is identical to ``run()``, except that it will throw
a :class:`Symfony\\Component\\Process\\Exception\\ProcessFailedException`
if the process couldn't be executed successfully (i.e. the process exited
with a non-zero code)::
use Symfony\Component\Process\Exception\ProcessFailedException;
use Symfony\Component\Process\Process;
$process = new Process('ls -lsa');
try {
echo $process->getOutput();
} catch (ProcessFailedException $e) {
echo $e->getMessage();
Getting real-time Process Output
@@ -218,17 +239,17 @@ Process Idle Timeout
.. versionadded:: 2.4
The :method:`Symfony\\Component\\Process\\Process::setIdleTimeout` method
was introduced in Symfony 2.4.
In contrast to the timeout of the previous paragraph, the idle timeout only
considers the time since the last output was produced by the process::
use Symfony\Component\Process\Process;
$process = new Process('something-with-variable-runtime');
In the case above, a process is considered timed out, when either the total runtime
exceeds 3600 seconds, or the process does not produce any output for 60 seconds.

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