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#ifndef shell_manager_hh_INCLUDED
#define shell_manager_hh_INCLUDED
#include "array_view.hh"
#include "env_vars.hh"
#include "string.hh"
#include "utils.hh"
#include "unique_descriptor.hh"
#include "completion.hh"
#include <signal.h>
#include <sys/wait.h>
#include <unistd.h>
namespace Kakoune
{
class Context;
struct ShellContext
{
ConstArrayView<String> params;
EnvVarMap env_vars;
};
struct EnvVarDesc
{
using Retriever = Vector<String> (*)(StringView name, const Context&);
StringView str;
bool prefix;
Retriever func;
};
inline void closepid(int pid){ kill(pid, SIGTERM); int status = 0; waitpid(pid, &status, 0); }
using UniqueFd = UniqueDescriptor<::close>;
using UniquePid = UniqueDescriptor<closepid>;
struct Shell
{
UniquePid pid;
UniqueFd in;
UniqueFd out;
UniqueFd err;
};
class ShellManager : public Singleton<ShellManager>
{
public:
ShellManager(ConstArrayView<EnvVarDesc> builtin_env_vars);
enum class Flags
{
None = 0,
WaitForStdout = 1
};
friend constexpr bool with_bit_ops(Meta::Type<Flags>) { return true; }
std::pair<String, int> eval(StringView cmdline, const Context& context,
StringView input = {},
Flags flags = Flags::WaitForStdout,
const ShellContext& shell_context = {});
Shell spawn(StringView cmdline,
const Context& context,
bool open_stdin,
const ShellContext& shell_context = {});
Vector<String> get_val(StringView name, const Context& context) const;
CandidateList complete_env_var(StringView prefix, ByteCount cursor_pos) const;
private:
String m_shell;
ConstArrayView<EnvVarDesc> m_env_vars;
};
}
#endif // shell_manager_hh_INCLUDED
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