Starts a process running the executable with the specified arguments. Returns a Future<Process> that completes with a Process instance when the process has been successfully started. That [P...
Starts a process running the executable with the specified
arguments. Returns a Future<Process>
that completes with a
Process instance when the process has been successfully
started. That Process object can be used to interact with the
process. If the process cannot be started the returned Future
completes with an exception.
Use workingDirectory to set the working directory for the process. Note that the change of directory occurs before executing the process on some platforms, which may have impact when using relative paths for the executable and the arguments.
Use environment to set the environment variables for the process. If not set the environment of the parent process is inherited. Currently, only US-ASCII environment variables are supported and errors are likely to occur if an environment variable with code-points outside the US-ASCII range is passed in.
If includeParentEnvironment is true
, the process's environment will
include the parent process's environment, with environment taking
precedence. Default is true
.
If runInShell is true
, the process will be spawned through a system
shell. On Linux and OS X, /bin/sh
is used, while
%WINDIR%\system32\cmd.exe
is used on Windows.
Users must read all data coming on the stdout and stderr
streams of processes started with Process.start
. If the user
does not read all data on the streams the underlying system
resources will not be released since there is still pending data.
The following code uses Process.start
to grep for main
in the
file test.dart
on Linux.
Process.start('grep', ['-i', 'main', 'test.dart']).then((process) {
stdout.addStream(process.stdout);
stderr.addStream(process.stderr);
});
If mode is ProcessStartMode.NORMAL (the default) a child
process will be started with stdin
, stdout
and stderr
connected.
If mode
is ProcessStartMode.DETACHED a detached process will
be created. A detached process has no connection to its parent,
and can keep running on its own when the parent dies. The only
information available from a detached process is its pid
. There
is no connection to its stdin
, stdout
or stderr
, nor will
the process' exit code become available when it terminates.
If mode
is [ProcessStartMode.DETACHED_WITH_STDIO] a detached
process will be created where the stdin
, stdout
and stderr
are connected. The creator can communicate with the child through
these. The detached process will keep running even if these
communication channels are closed. The process' exit code will
not become available when it terminated.
The default value for mode
is ProcessStartMode.NORMAL
.