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[libcalamares] Python API for callbacks from processes

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This is an experiment in Python API that will allow a callback
function in the Python module to be called for each output line.
It builds on the run-a-process extensions that are being built
simultaneously.
This commit is contained in:
Adriaan de Groot 2021-07-27 16:13:49 +02:00
parent 2de09d4001
commit e0fdde06c9
3 changed files with 23 additions and 1 deletions
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11
src/libcalamares/PythonJob.cpp
View file

@ -36,6 +36,11 @@ BOOST_PYTHON_FUNCTION_OVERLOADS( check_target_env_output_list_overloads,
CalamaresPython::check_target_env_output,
1,
3 );
BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS( target_env_output_overloads,
target_env_output,
2,
4 );
BOOST_PYTHON_MODULE( libcalamares )
{
bp::object package = bp::scope();
@ -56,7 +61,11 @@ BOOST_PYTHON_MODULE( libcalamares )
&CalamaresPython::PythonJobInterface::setprogress,
bp::args( "progress" ),
"Reports the progress status of this job to Calamares, "
"as a real number between 0 and 1." );
"as a real number between 0 and 1." )
.def( "target_env_output",
&CalamaresPython::PythonJobInterface::target_env_output,
target_env_output_overloads( bp::args( "args", "callback", "stdin", "timeout" ), "docstring"))
;
bp::class_< CalamaresPython::GlobalStoragePythonWrapper >( "GlobalStorage",
bp::init< Calamares::GlobalStorage* >() )

7
src/libcalamares/PythonJobApi.cpp
View file

@ -171,6 +171,13 @@ PythonJobInterface::setprogress( qreal progress )
}
}
int
PythonJobInterface::target_env_output( const boost::python::list& args, const std::string& callback, const std::string& stdin, int timeout )
{
cWarning() << "target env" << _bp_list_to_qstringlist(args) << "cb" << callback.c_str() << "stdin" << stdin.c_str() << "timeout" << timeout;
return 0;
}
std::string
obscure( const std::string& string )
{

6
src/libcalamares/PythonJobApi.h
View file

@ -63,6 +63,12 @@ public:
boost::python::dict configuration;
void setprogress( qreal progress );
/** @brief Run the command @p args and process lines of output
*
* Calls the function @p callback from the job module on each
* line of output. Returns the exit code of the command.
*/
int target_env_output( const boost::python::list& args, const std::string& callback, const std::string& stdin = std::string(), int timeout = 10 );
private:
Calamares::PythonJob* m_parent;