#include <string>
#include <vector>
+#include <msp/core/process.h>
#include <msp/fs/path.h>
#include <msp/io/pipe.h>
#include "task.h"
class ExternalTask: public Task
{
public:
- enum Destination
+ enum StreamAction
{
- PASSTHROUGH,
- CAPTURE,
- IGNORE
+ PASSTHROUGH, //< Do not touch the stream
+ CAPTURE, //< Capture the stream
+ REDIRECT, //< Redirect the stream to/from a file
+ IGNORE //< Redirect the stream to oblivion
};
- typedef std::vector<std::string> Arguments;
+ typedef Msp::Process::Arguments Arguments;
private:
Arguments argv;
Msp::FS::Path work_dir;
- int pid;
+ Msp::Process *process;
int exit_code;
- Destination stdout_dest;
- Destination stderr_dest;
+ StreamAction stdin_action;
+ Msp::FS::Path stdin_file;
+ StreamAction stdout_action;
+ Msp::FS::Path stdout_file;
+ StreamAction stderr_action;
Msp::IO::Pipe *capture_pipe;
std::string output;
name. If the working directory is not specified, no chdir is done. */
ExternalTask(const Arguments &, const Msp::FS::Path & = Msp::FS::Path());
- virtual ~ExternalTask();
+ ~ExternalTask();
- virtual std::string get_command() const;
- virtual void start();
- virtual Status check();
- Status wait();
+ std::string get_command() const override;
+ void start() override;
+ Status check() override;
+ Status wait() override;
private:
Status do_wait(bool);
public:
- void set_stdout(Destination);
- void set_stderr(Destination);
+ /// Redirect stdin from a file. Has no effect after the task is started.
+ void set_stdin(const Msp::FS::Path &);
+
+ /// Sets destination for stdout. Has no effect after the task is started.
+ void set_stdout(StreamAction);
+
+ /// Redirect stdout to a file. Has no effect after the task is started.
+ void set_stdout(const Msp::FS::Path &);
+
+ /// Sets destination for stderr. Has no effect after the task is started.
+ void set_stderr(StreamAction);
+
+ /** Returns captured output, if any. This may be called while the task is
+ still running, but it will always return all output. */
const std::string &get_output() const { return output; }
- /** Executes a command and captures its output. Stderr is ignored, but if
- the command exits with a nonzero status, an exception is thrown. */
- static std::string run_and_capture_output(const Arguments &, const Msp::FS::Path & = Msp::FS::Path());
+ /** Executes a command and captures its output. If the command exits with
+ a nonzero status, an exception is thrown. */
+ static std::string run_and_capture_output(const Arguments &, const Msp::FS::Path & = Msp::FS::Path(), bool = false);
};
#endif